Protection of Stratospheric Ozone: Update to the Refrigerant Management Requirements Under the Clean Air Act, 82272-82395 [2016-24215]
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Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 82
[EPA–HQ–OAR–2015–0453; FRL–9950–28–
OAR]
RIN 2060–AS51
Protection of Stratospheric Ozone:
Update to the Refrigerant Management
Requirements Under the Clean Air Act
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
The Clean Air Act prohibits
the knowing release of ozone-depleting
and substitute refrigerants during the
course of maintaining, servicing,
repairing, or disposing of appliances or
industrial process refrigeration. The
existing regulations require that persons
maintaining, servicing, repairing, or
disposing of air-conditioning and
refrigeration equipment containing more
than 50 pounds of refrigerant observe
certain service practices that reduce
emissions of ozone-depleting
refrigerant. This rule updates those
existing requirements as well as extends
them, as appropriate, to non-ozone
depleting substitute refrigerants, such as
hydrofluorocarbons. Updates include
strengthened leak repair requirements,
recordkeeping requirements for the
disposal of appliances containing more
than five and less than 50 pounds of
refrigerant, revisions to the technician
certification program, and revisions for
improved readability and compliance.
As a result, this action reduces
emissions of ozone-depleting substances
and gases with high global warming
potentials.
DATES: This final rule is effective on
January 1, 2017. The incorporation by
reference of certain publications listed
in the regulations is approved by the
Director of the Federal Register as of on
January 1, 2017. This rule contains
information collection activities that
have been submitted for approval to the
Office of Management and Budget
(OMB) under the Paperwork Reduction
Act (PRA). Under the PRA, comments
on the information collection provisions
are best assured of consideration if the
Office of Management and Budget
(OMB) receives a copy of your
comments on or before December 19,
2016.
ADDRESSES: The EPA has established a
docket for this action under Docket ID
No. EPA–HQ–OAR–2015–0453. All
documents in the docket are listed on
the www.regulations.gov Web site.
Although listed in the index, some
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SUMMARY:
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information is not publicly available,
e.g., CBI or other information whose
disclosure is restricted by statute.
Certain other material, such as
copyrighted material, is not placed on
the Internet and will be publicly
available only in hard copy form.
Publicly available docket materials are
available electronically through
www.regulations.gov.
FOR FURTHER INFORMATION CONTACT:
Jeremy Arling, Stratospheric Protection
Division, Office of Atmospheric
Programs, Mail Code 6205T, 1200
Pennsylvania Avenue NW., Washington,
DC 20460; telephone number (202) 343–
9055; email address arling.jeremy@
epa.gov. You may also visit
www.epa.gov/section608 for further
information about refrigerant
management, other Stratospheric Ozone
Protection regulations, the science of
ozone layer depletion, and related
topics.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. General Information
A. Does this action apply to me?
B. What action is the Agency taking?
C. What is the Agency’s authority for
taking this action?
D. What are the incremental costs and
benefits of this action?
E. Judicial Review
II. Background
A. What are ozone-depleting substances?
B. What is the National Recycling and
Emission Reduction Program?
C. What developments have occurred since
EPA first established the National
Recycling and Emission Reduction
Program?
D. What are the goals of this rule?
E. What are the major revisions being
finalized in this rule?
F. Enforcement of Subpart F Regulations
G. Incorporation by Reference
III. EPA’s Authority Under the Clean Air Act
A. Summary of EPA’s Authority for the
Revisions to Subpart F
B. Comments and Responses Related to
EPA’s Authority
IV. The Revisions Finalized in This Rule
A. Revisions to the Definitions in § 82.152
B. Revisions to the Venting Prohibition in
§ 82.154(a)
C. Revisions to the Refrigerant and
Appliance Sales Restrictions in § 82.154
D. Revisions to the Safe Disposal
Provisions in § 82.155
E. Revisions to the Evacuation
Requirements in § 82.156
F. Revisions to the Leak Repair
Requirements in § 82.157
G. Revisions to the Standards for Recovery
and/or Recycling Equipment in § 82.158
H. Revisions to the Standards for
Equipment Testing Organizations in
§ 82.160
I. Revisions to the Technician Certification
Requirements in § 82.161
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J. Revisions to the Technician Certification
Program Requirements in § 82.161
K. Revisions to the Reclamation
Requirements in § 82.164
L. Revisions to the Recordkeeping and
Reporting Requirements in § 82.166
M. Effective and Compliance Dates
V. Possible Future Revisions to Subpart F
VI. Economic Analysis
VII. Statutory and Executive Order Reviews
A. Executive Order 12866: Regulatory
Planning and Review and Executive
Order 13563: Improving Regulation and
Regulatory Review
B. Paperwork Reduction Act
C. Regulatory Flexibility Act (RFA)
D. Unfunded Mandates Reform Act
(UMRA)
E. Executive Order 13132: Federalism
F. Executive Order 13175: Consultation
and Coordination With Indian Tribal
Governments
G. Executive Order 13045: Protection of
Children From Environmental Health
and Safety Risks
H. Executive Order 13211: Actions That
Significantly Affect Energy Supply,
Distribution, or Use
I. National Technology Transfer and
Advancement Act
J. Executive Order 12898: Federal Actions
To Address Environmental Justice in
Minority Populations and Low-Income
Populations
K. Congressional Review Act (CRA)
List of Acronyms
AHRI Air Conditioning, Heating, and
Refrigeration Institute
ARI Air Conditioning and Refrigeration
Institute (now AHRI)
ASHRAE American Society of Heating,
Refrigerating and Air-Conditioning
Engineers, Inc.
CAA Clean Air Act
CARB California Air Resources Board
CBI Confidential Business Information
CFC Chlorofluorocarbon
CO2 Carbon Dioxide
GHG Greenhouse Gas
GWP Global Warming Potential
HCFC Hydrochlorofluorocarbon
HFC Hydrofluorocarbon
HFO Hydrofluoroolefin
IPCC Intergovernmental Panel on Climate
Change
IPR Industrial Process Refrigeration
MMTCO2eq Million Metric Tons Carbon
Dioxide Equivalent
MVAC Motor Vehicle Air Conditioner
NAICS North American Industry
Classification System
ODP Ozone depletion potential
ODS Ozone-depleting substance
PFC Perfluorocarbon
RCRA Resource Conservation and Recovery
Act
RMP Refrigerant Management Program
SCAQMD South Coast Air Quality
Management District
SNAP Significant New Alternatives Policy
UL Underwriters Laboratories
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I. General Information
repair, recycle, or dispose of
refrigeration and air-conditioning
appliances and refrigerants, as well as
entities that manufacture or sell
refrigerants, products and services for
A. Does this action apply to me?
Categories and entities potentially
regulated by this action include those
who own, operate, maintain, service,
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the refrigeration and air-conditioning
industry, including motor vehicle air
conditioning. Regulated entities
include, but are not limited to, the
following:
TABLE 1—POTENTIALLY AFFECTED ENTITIES
North American industry
classification system
(NAICS) code
Category
Industrial
(IPR).
Process
Refrigeration
Commercial Refrigeration ...............
Comfort Cooling ..............................
Plumbing, Heating, and Air-Conditioning Contractors.
Manufacturers and Distributors of
Small Cans of Refrigerant.
Reclaimers ......................................
111, 11251, 11511, 21111, 2211,
2212, 2213, 311, 3121, 3221,
3222, 32311, 32411, 3251,
32512, 3252, 3253, 32541,
3256, 3259, 3261, 3262, 3324,
3328, 33324, 33341, 33361,
3341, 3344, 3345, 3346, 3364,
33911, 339999.
42374, 42393, 42399, 4242, 4244,
42459, 42469, 42481, 42493,
4451, 4452, 45291, 48422,
4885, 4931, 49312, 72231.
45211, 45299, 453998, 512, 522,
524, 531, 5417, 551, 561, 6111,
6112, 6113, 61151, 622, 7121,
71394, 721, 722, 813, 92.
238220, 811111, 81131, 811412 ..
325120, 441310, 447110 ..............
325120, 423930, 424690, 562920,
562212.
Disposers and Recyclers of Appliances.
Refrigerant Wholesalers ..................
423990, 562212, 562920 ..............
325120, 42, 424690 ......................
Certifying Organizations ..................
541380 ...........................................
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This table is not intended to be
exhaustive, but rather provides a guide
for readers regarding the types of
entities that could potentially be
regulated by this action. Other types of
entities not listed in the table could also
be affected. To determine whether your
facility, company, business
organization, or other entity is regulated
by this action, you should carefully
examine the regulations in subpart F
and this rule. If you have questions
regarding the applicability of this action
to a particular entity, consult the person
listed in the FOR FURTHER INFORMATION
CONTACT section.
B. What action is the Agency taking?
The regulations in 40 CFR part 82,
subpart F (subpart F) that are in effect
before this final action takes effect (often
referred to in this notice as the ‘‘prior’’
or ‘‘previous’’ regulations) require that
persons servicing, maintaining,
repairing, or disposing of airconditioning and refrigeration
equipment observe certain service
practices that reduce emissions of
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Examples of regulated entities
Owners or operators of refrigeration equipment used in agriculture
and crop production, oil and gas extraction, ice rinks, and the manufacture of frozen food, dairy products, food and beverages, ice,
petrochemicals, chemicals, machinery, medical equipment, plastics,
paper, and electronics
Owners or operators of refrigerated warehousing and storage facilities, supermarkets, grocery stores, warehouse clubs, supercenters,
convenience stores, and refrigerated transport
Owners or operators of air-conditioning equipment used in the following: hospitals, office buildings, colleges and universities, metropolitan transit authorities, real estate rental & leased properties,
lodging and food services, property management, schools, and
public administration or other public institutions
Plumbing, heating, and air-conditioning contractors, and refrigerant
recovery contractors, including automotive repair
Automotive parts and accessories stores and industrial gas manufacturers
Industrial gas manufacturers, recyclable material merchant wholesalers, materials recovery facilities, solid waste landfills, and other
chemical and allied products merchant wholesalers
Materials recovery facilities, solid waste landfills, and other miscellaneous durable goods merchant wholesalers
Industrial gas manufacturers, other chemical and allied products merchant wholesalers, wholesale trade
Environmental test laboratories and services
ozone-depleting refrigerant.
Specifically, these provisions include:
Restricting the servicing of appliances
and the sale of refrigerant to certified
technicians; specifying the proper
evacuation levels before opening an
appliance; requiring the use of certified
refrigerant recovery and/or recycling
equipment; requiring the maintenance
and repair of appliances that meet size
and leak rate thresholds; requiring that
refrigerant be removed from appliances
prior to disposal; requiring that
appliances have a servicing aperture or
process stub to facilitate refrigerant
recovery; requiring that refrigerant
reclaimers be certified in order to
reclaim and sell used refrigerant; and
establishing standards for technician
certification programs, recovery
equipment, and quality of reclaimed
refrigerant.
This rule updates the prior refrigerant
management requirements in subpart F
that apply to ozone-depleting
refrigerants. It also extends those
requirements, as appropriate, to nonozone depleting substitute refrigerants
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that are not exempt from the venting
prohibition, including but not limited to
hydrofluorocarbons (HFCs), in order to
interpret, explain, and enforce the
venting prohibition.
C. What is the Agency’s authority for
taking this action?
Section 608 of the CAA provides EPA
authority for these revisions to the
regulations found at 40 CFR part 82,
subpart F. EPA’s authority for this
rulemaking is supplemented by section
301(a), which provides authority to
‘‘prescribe such regulations as are
necessary to carry out [the EPA
Administrator’s] functions under this
Act,’’ and section 114, which provides
authority for the EPA Administrator to
require recordkeeping and reporting in
carrying out any provision of the CAA
(with certain exceptions that do not
apply here). More detail on EPA’s
authority for this action is provided in
subsequent sections.
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D. What are the incremental costs and
benefits of this action?
The revisions in this rule require
certain businesses to take actions that
have associated costs, such as
conducting leak inspections, repairing
leaks, and keeping records. Total annual
incremental compliance costs associated
with this rule are estimated to be $24.5
million per year in 2014 dollars using a
7 percent discount rate. Costs were
modeled for a single typical year in
which all the requirements were in
effect, based on the appliance
distribution modeled for 2015. Total
annual operating savings associated
with reduced refrigerant use are
estimated to be $44 million; thus
incremental compliance costs and
potential (ODP) of the gases emitted.
Avoided emissions of ozone-depleting
refrigerants and non-ozone depleting
substitutes will also reduce climate
impacts because most of these
refrigerants are potent greenhouse gases.
Weighted by their global warming
potentials (GWP) 1, EPA estimates that
the revisions will prevent annual
emissions of greenhouse gases
equivalent to 7.3 million metric tons of
carbon dioxide (MMTCO2eq). The
reductions in emissions of GHGs and
ODS have benefits for human health and
the environment because of the threats
these substances pose to human health
and the environment. Such threats are
discussed further in Section II.D of this
notice.
refrigerant savings combined are
estimated to be approximately $19.5
million per year. A detailed description
of the comments received on the
proposed analysis can be found in
Section VI of this preamble as well as
the response to comments document
found in the docket. A full description
of the technical analysis can be found in
the document Analysis of the Economic
Impact and Benefits of Final Revisions
to the National Recycling and Emission
Reduction Program in the docket.
EPA estimates that this rule will
prevent damage to the stratospheric
ozone layer by reducing emissions of
ozone-depleting refrigerants by
approximately 114 metric tons per year,
weighted by the ozone-depletion
TABLE 2—ANNUAL GHG AND ODS EMISSIONS AVOIDED
GHG emissions avoided
(MTCO2eq)
ODS
emissions
avoided
(ODPweighted
MT)
Rule component
HFC
ODS
Total
ODS
Leak Repair and Inspection
Comfort Cooling ...............................................................................................
Commercial Refrigeration ................................................................................
IPR ...................................................................................................................
Reporting & Recordkeeping
Self-sealing Valves on Small Cans
........................
1,425,000
1,246,000
275,000
........................
657,000
........................
2,487,000
1,077,000
169,000
........................
........................
........................
3,912,000
2,323,000
444,000
........................
657,000
........................
78
30
5
........................
........................
Total ..........................................................................................................
3,603,000
3,733,000
7,336,000
114
Totals may not sum due to independent rounding.
Under CAA section 307(b)(1), judicial
review of this final action is available
only by filing a petition for review in
the U.S. Court of Appeals for the District
of Columbia Circuit by January 17, 2017.
This final action is a nationally
applicable regulation and has
nationwide scope and effect because it
makes revisions to the EPA’s regulations
for the National Recycling and Emission
Reduction Program found at 40 CFR part
82, subpart F, which are nationally
applicable regulations that have
nationwide scope and effect. Under
CAA section 307(d)(7)(B), only an
objection to this final action that was
raised with reasonable specificity
during the period for public comment
can be raised during judicial review.
This section also provides a mechanism
for EPA to convene a proceeding for
reconsideration, ‘‘[i]f the person raising
an objection can demonstrate to [EPA]
that it was impracticable to raise such
objection within [the period for public
comment] or if the grounds for such
objection arose after the period for
public comment (but within the time
specified for judicial review) and if such
objection is of central relevance to the
outcome of this rule.’’ Any person
seeking to make such a demonstration to
us should submit a Petition for
Reconsideration to the Office of the
Administrator, Environmental
Protection Agency, Room 3000, William
Jefferson Clinton Building, 1200
Pennsylvania Ave. NW., Washington,
DC 20460, with a copy to the person
listed in the preceding FOR FURTHER
INFORMATION CONTACT section, and the
Associate General Counsel for the Air
and Radiation Law Office, Office of
General Counsel (Mail Code 2344–A),
Environmental Protection Agency, 1200
Pennsylvania Ave. NW., Washington,
DC 20460.
1 Unless otherwise stated, GWPs stated in this
document are 100-year integrated GWPs, relative to
a GWP of 1 for carbon dioxide, as reported in IPCC,
2007. Climate Change 2007: The Physical Science
Basis. Contribution of Working Group I to the
Fourth Assessment Report of the Intergovernmental
Panel on Climate Change [Solomon, S., D. Qin, M.
Manning, Z. Chen, M. Marquis, K.B. Averyt, M.
Tignor and H.L. Miller (eds.)]. Cambridge
University Press, Cambridge, United Kingdom and
New York, NY, USA. This document is accessible
at www.ipcc.ch/publications_and_data/ar4/wg1/en/
contents.html. For blends of multiple compounds,
we are weighting the GWP of each component by
mass percentage in the blend.
Details of the methods used to
estimate the benefits are discussed in
Section VI of this notice and the
Analysis of the Economic Impact and
Benefits of Final Revisions to the
National Recycling and Emission
Reduction Program in the docket.
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E. Judicial Review
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II. Background
A. What are ozone-depleting
substances?
The stratospheric ozone layer protects
life on Earth from the sun’s harmful
ultraviolet (UV) radiation. ODS are
generally man-made chemicals that,
when transported by winds into the
stratosphere, release chlorine or
bromine and damage that protective
ozone layer. ODS are used as
refrigerants, solvents, foam blowing
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agents, aerosol propellants, fire
suppression agents, and in other smaller
applications. The Clean Air Act divides
ODS into two categories: Class I and
class II substances. The production of
new class I ODS, which includes
chlorofluorocarbons (CFCs), methyl
chloroform, carbon tetrachloride,
halons, and other compounds has been
banned for over a decade. The
production of new class II substances,
which are all hydrochlorofluorocarbons
(HCFCs), will be phased down 99.5
percent by 2020.
The initial concern about the ozone
layer in the 1970s led to a ban on the
use of CFCs as aerosol propellants in
several countries, including the United
States. In 1985, the Vienna Convention
on the Protection of the Ozone Layer
was adopted to formalize international
cooperation on this issue. Additional
efforts resulted in the adoption of the
Montreal Protocol on Substances that
Deplete the Ozone Layer in 1987.
Today, all Parties to the Montreal
Protocol have agreed to phase out the
production and consumption of ODS
controlled by the Protocol.
B. What is the National Recycling and
Emission Reduction Program?
Section 608 of the CAA bears the title
‘‘National Recycling and Emissions
Reduction Program.’’ Under the
structure of section 608, this program
has three main components. First,
section 608(a) requires EPA to establish
standards and requirements regarding
use and disposal of class I and II
substances, including a comprehensive
refrigerant management program to limit
emissions of ozone-depleting
refrigerants. This program is to include
regulations that reduce the use and
emissions of class I and II substances to
the lowest achievable level and that
maximize the recapture and recycling of
such substances. The second
component, section 608(b), requires that
the regulations issued pursuant to
subsection (a) contain requirements for
the safe disposal of class I and class II
substances. The third component,
section 608(c), prohibits the knowing
venting, release, or disposal of ozonedepleting refrigerants and their
substitutes during the maintenance,
service, repair, or disposal of airconditioning and refrigeration
appliances or IPR. This prohibition is
also referred to as the ‘‘venting
prohibition’’ in this action. Section 608
is described in greater detail in Section
III.
EPA first issued regulations under
section 608 of the CAA on May 14, 1993
(58 FR 28660, ‘‘1993 Rule’’), to establish
the national refrigerant management
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program for ozone-depleting refrigerants
recovered during the maintenance,
service, repair, and disposal of airconditioning and refrigeration
appliances. These regulations were
intended to substantially reduce the use
and emissions of ozone-depleting
refrigerants.
The regulations first established in the
1993 Rule require that persons servicing
air-conditioning and refrigeration
equipment containing an ozonedepleting refrigerant observe certain
practices that reduce emissions. They
also established requirements for
refrigerant recovery equipment,
reclaimer certification, and technician
certification, and restricted the sale of
refrigerant so that only certified
technicians could purchase it. In
addition, they required the removal of
ODS from appliances prior to disposal,
and that all air-conditioning and
refrigeration equipment using an ODS
be provided with a servicing aperture or
process stub to facilitate refrigerant
recovery.
The 1993 Rule also established a
requirement to repair leaking appliances
containing 50 or more pounds of ODS
refrigerant. The rule set an annual leak
rate of 35 percent for commercial
refrigeration appliances and IPR and 15
percent for comfort cooling appliances.
If the applicable leak rate was exceeded,
the appliance must be repaired within
30 days.
EPA revised these regulations through
subsequent rulemakings published on
August 19, 1994 (59 FR 42950),
November 9, 1994 (59 FR 55912),
August 8, 1995 (60 FR 40420), July 24,
2003 (68 FR 43786), March 12, 2004 (69
FR 11946), January 11, 2005 (70 FR
1972), May 23, 2014 (79 FR 29682), and
April 10, 2015 (80 FR 19453). EPA also
issued proposed rules to revise the
regulations in subpart F on June 11,
1998 (63 FR 32044), elements of which
were not finalized, and on December 15,
2010 (75 FR 78558), which was also not
finalized. EPA is withdrawing and
therefore not finalizing the 2010
proposed rule. Instead, EPA re-proposed
elements of both the 1998 and the 2010
proposed rules in the notice of proposed
rulemaking (80 FR 19453) for this rule.
The August 19, 1994, rule amended
specific definitions, required practices,
and reporting and recordkeeping
requirements, as well as adopted
industry standards for reclaimed ODS
refrigerants.
The November 9, 1994, rule clarified
the conditions under which technician
certification programs were
grandfathered, allowing technicians
who had participated in voluntary
technician training and certification
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programs prior to the publication of the
1993 Rule to receive formal
certification. The rule also clarified the
scope of the technician certification
requirement and provided a limited
exemption from certification
requirements for apprentices.
The August 8, 1995, rule responded to
a settlement agreement between EPA
and the Chemical Manufacturers
Association to give additional flexibility
to repair or retrofit IPR appliances
containing ODS. EPA allowed owners or
operators additional time beyond 30
days to complete repairs and more than
one year to retrofit appliances where
certain conditions applied (i.e.,
federally owned equipment located in
areas subject to radiological
contamination, unavailability of
necessary parts for IPR, or instances
where adherence to local, state, or
federal laws hinder immediate repairs
for IPR). EPA also clarified that purged
refrigerants that have been captured and
destroyed can be excluded from the leak
rate calculations.
The July 24, 2003, rule finalized
portions of a proposed rulemaking (61
FR 7858; February 29, 1996) that
amended the recordkeeping aspects of
the section 608 technician certification
program, refined aspects of the
refrigerant sales restriction, adopted
updated versions of ARI Standards 700 2
and 740 3, amended several definitions,
and set forth procedures for the
revocation and/or suspension of
approval to certify technicians and
refrigerant recovery and/or recycling
equipment and revocation and/or
suspension procedures for certification
as a refrigerant reclaimer.
The March 12, 2004, rule exempted
from the venting prohibition under
section 608(c)(2) specific non-ozone
depleting substances that the Agency
found did not pose a threat to the
environment (69 FR 11946). Notably,
EPA did not exempt HFC or
perfluorocarbon (PFC) refrigerants from
the venting prohibition. The rule
clarified that regulations affecting the
handling and sales of ozone-depleting
refrigerants apply to blends that contain
an ODS.
The January 11, 2005, rule clarified
that the leak repair requirements also
apply to blends that contain an ODS (70
2 The Air Conditioning and Refrigeration Institute
Standard 700, Specification for Fluorocarbons and
Other Refrigerants, contains standards for the
reclamation of used refrigerants.
3 The Air Conditioning and Refrigeration Institute
Standard 740, Performance Rating of Refrigerant
Recovery Equipment and Recovery/Recycling
Equipment, contains standards for the equipment
used to recover refrigerant from air-conditioning
and refrigeration appliances.
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FR 1927). The rule amended the
required practices and associated
reporting/recordkeeping requirements
and clarified certain leak repair
requirements.
On December 15, 2010 (75 FR 78558,
‘‘proposed 2010 Leak Repair Rule’’),
EPA proposed to create a streamlined
set of leak repair requirements that are
applicable to all types of appliances
containing 50 or more pounds of ozonedepleting refrigerant. The rule also
proposed to reduce the leak repair rates.
EPA did not finalize that rule and EPA
has withdrawn that proposal through
this rulemaking, although, as noted
above, EPA also re-proposed elements of
that proposal in the notice of proposed
rulemaking for this rule.
Finally, on May 23, 2014 (79 FR
29682), and April 10, 2015 (80 FR
19453), EPA expanded the list of
substitute refrigerants that EPA has
exempted from the CAA venting
prohibition to include certain
hydrocarbons in specific end-uses.
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C. What developments have occurred
since EPA first established the National
Recycling and Emission Reduction
Program?
1. Phaseout of CFCs and HCFCs
In 1993, when EPA established the
refrigerant management requirements of
subpart F, CFCs and HCFCs were the
most commonly used refrigerants,
depending on the specific application.
Just six months prior, in November
1992, the Parties to the Montreal
Protocol accelerated the phaseout
schedule for CFCs through the
Copenhagen Amendment, so that there
would be a complete phaseout by 1996.
The Copenhagen Amendment also
established a phaseout schedule for
HCFCs. The schedule for HCFCs was
later amended and now calls for a 35
percent reduction in production and
consumption from each Article 2 Party’s
(developed country’s) cap by 2004,
followed by a 75 percent reduction by
2010, a 90 percent reduction by 2015, a
99.5 percent reduction by 2020, and a
total phaseout by 2030. From 2020 to
2030, production and consumption at
only 0.5 percent of baseline is allowed
solely for servicing existing airconditioning and refrigeration
equipment.
The United States chose to implement
the Montreal Protocol phaseout
schedule on a chemical-by-chemical
basis. In 1993, as authorized by section
606 of the CAA, EPA established a
phaseout schedule that eliminated
HCFC–141b first and would greatly
restrict HCFC–142b and HCFC–22 next,
due to their high ozone depletion
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potentials (ODPs), followed by
restrictions on all other HCFCs, and
ultimately a complete phaseout (58 FR
15014, March 18, 1993, and 58 FR
65018, December 10, 1993). EPA
continues to issue allowances for the
production and consumption of HCFCs
that have not yet been phased out. The
allowance levels reflect not only
phaseout schedules but also use
restrictions under section 605(a) of the
CAA. The phaseout schedule and
allowance levels can be found at 40 CFR
part 82, subpart A.
EPA established the refrigerant
management program shortly before the
CFC phaseout. Similarly, today’s rule to
update those regulations closely
precedes the phaseout of HCFCs. In
2020, production and consumption of
HCFCs will be limited to 0.5% of
baseline, and may not include HCFC–
22, the most commonly used HCFC
refrigerant. The reasons for encouraging
a viable CFC recycling program support
the same approach for HCFCs. The 1993
Rule discussed a 1990 advance notice of
proposed rulemaking regarding a
national CFC recycling program. As the
1993 Rule discussed, that 1990 notice
emphasized that recycling is important
because it would allow the continued
use of equipment requiring CFCs for
service past the year in which CFC
production is phased out, thereby
eliminating or deferring the cost of early
retirement or retrofit of such equipment.
Because of the continued use of these
substances in existing equipment,
recycling can serve as a useful bridge to
alternative products while minimizing
disruption of the current capital stock of
equipment. (58 FR 28661).
More than twenty years later, with the
experience gained through the phaseout
of CFCs, reducing emissions of HCFCs
and maximizing their recovery and
reclamation remains just as important
for ensuring the continued viability of
the current stock of equipment. The
transition out of CFC and now HCFC
refrigerants is one reason that it is
important to update the refrigerant
management regulations in subpart F.
2. Development of Non-ODS
Alternatives
The universe of available refrigerants
has expanded dramatically since EPA
first established the refrigerant
management regulations in subpart F.
Under the Significant New Alternatives
Policy (SNAP) program (CAA section
612), EPA identifies substitutes that
pose lower overall risks to human
health and the environment and must
prohibit the use of substitutes for which
there are other available or potentially
available alternatives posing lower
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overall risk to human health and the
environment for the same use. Thus,
EPA’s SNAP program does not provide
a static list of alternatives. Instead, the
SNAP list evolves as EPA makes
decisions informed by our overall
understanding of the environmental and
human health impacts as well as our
current knowledge about available
substitutes. Under SNAP, EPA has
reviewed over 400 substitutes in the
refrigeration and air-conditioning; fire
suppression; foam blowing; solvent
cleaning; aerosols; adhesives, coatings,
and inks; sterilants; and tobacco
expansion sectors. To date, SNAP has
issued 31 notices and 20 rulemakings
listing alternatives as acceptable,
acceptable subject to use conditions,
acceptable subject to narrowed use
limits, or unacceptable for those various
end-uses.
For example, on April 10, 2015, the
SNAP Program listed as acceptable,
subject to use conditions, three
hydrocarbons, one hydrocarbon blend,
and HFC–32 as substitute refrigerants in
a number of refrigeration and airconditioning end-uses (80 FR 19454).
The SNAP program has also recently
listed a number of additional refrigerant
options, including blends of
hydrofluoroolefins (HFOs) and HFCs
that have lower global warming
potentials (GWPs) (October 21, 2014, 79
FR 62863; July 20, 2015, 80 FR 42870).
EPA anticipates that industry will
continue to develop safer alternatives
and that EPA will continue to review
information concerning additional
refrigerant options and determine the
appropriate action needed to safeguard
human health and the environment.
Due to the change in the suite of
acceptable refrigerants available for
some end-uses, EPA anticipates that the
relative amounts of different refrigerants
in stocks in the United States will
change, and thus that the universe of
refrigerants subject to the refrigerant
management program will continue to
evolve. The diversity of refrigerants and
the potential for cross-contamination are
two reasons why it is important to
clarify how all refrigerants, including
non-exempt substitute refrigerants,
should be handled under the refrigerant
management regulations in subpart F.
3. Increased Attention to HFCs as
Climate Pollutants
Domestic and international efforts to
protect the ozone layer have also helped
to protect the global climate, because in
addition to damaging ozone in the
stratosphere, CFCs and HCFCs are also
potent GHGs. HFCs, which are the
predominant class of compounds being
used as replacements for ODS, also can
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have high GWPs. As their use has
increased, concern has grown over the
environmental damage caused by heat
trapped in the atmosphere by HFCs.
On December 7, 2009, (74 FR 66496)
the Administrator issued an
Endangerment Finding regarding GHGs
under section 202(a) of the CAA. As part
of this finding, EPA concluded that the
current and projected concentrations of
six key well-mixed GHGs in the
atmosphere—carbon dioxide (CO2),
methane (CH4), nitrous oxide (N2O),
HFCs, PFCs, and sulfur hexafluoride
(SF6)—endanger both the health and
welfare of current and future
generations. While this finding was
made specifically for the purposes of
section 202(a) of the CAA, EPA is
cognizant of the global climate risks
generally discussed in the finding in its
work to reduce emissions of HFCs and
other GHGs.
i. Climate Action Plan
In June 2013, the President
announced the Climate Action Plan.4
Among the many actions called for, the
Climate Action Plan outlined a set of
measures to address HFCs. The Climate
Action Plan states: ‘‘to reduce emissions
of HFCs, the United States can and will
lead both through international
diplomacy as well as domestic actions.’’
Part of this international diplomacy is
the proposed Amendment to the
Montreal Protocol discussed below. The
Climate Action Plan also directed EPA
to use its authority through the SNAP
program ‘‘to encourage private sector
investment in low-emissions technology
by identifying and approving climatefriendly chemicals while prohibiting
certain uses of the most harmful
chemical alternatives.’’ In July 2015,
EPA finalized a rule that revised the
listing status for certain substitutes
previously listed as acceptable under
the SNAP program (80 FR 42870). That
rule revised the status of certain HFCs
and HCFCs for various end-uses in the
aerosols, refrigeration and airconditioning, and foam blowing sectors.
EPA made these revisions based on
information showing that other
substitutes are available for the same
uses that pose lower risk overall to
human health and the environment. A
copy of the Climate Action Plan is
available in the docket to this rule.
The President’s Climate Action Plan
also calls on the federal government to
reduce emissions of HFCs by purchasing
alternatives whenever feasible and
transitioning to equipment that uses
4 The President’s Climate Action Plan, 2013,
https://www.whitehouse.gov/sites/default/files/
image/president27sclimateactionplan.pdf.
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safer and more sustainable alternatives
to HFCs. To implement the Climate
Action Plan, the Department of Defense,
General Services Administration, and
National Aeronautics and Space
Administration recently amended the
Federal Acquisition Regulation to
encourage the purchase of alternatives
to high GWP HFCs (81 FR 30429; May
16, 2016). This rule is designed to
promote the use of safer chemical
alternatives to HFCs by service and
vendor contractors. To help agencies
monitor progress, the amendment
requires contractors to keep records of
and report on the amounts of HFCs
added or removed during the routine
maintenance, repair, or disposal of
appliances with a full charge of 50 or
more pounds of HFC or HFC blend
refrigerant.
Minimizing the emissions and
maximizing the recovery and reuse of
ODS and HFC refrigerants are consistent
with the Climate Action Plan. EPA
estimates that the revisions finalized in
this action will prevent annual
emissions of refrigerant equivalent to
7.3 MMTCO2eq. Of this amount, 3.6
MMTCO2eq are due to HFCs and 3.7
MMTCO2eq are due to ODS. Because of
the significant environmental benefit to
be gained by addressing HFC
refrigerants, it is important to update the
refrigerant management regulations in
subpart F.
ii. Trends in HFC Use and Future
Projections
Although HFCs represent a small
fraction of current GHG emissions by
weight, their warming impact per
kilogram is very strong. The most
commonly used HFC, HFC–134a, has a
GWP of 1,430, which means it traps
1,430 times as much heat per kilogram
as carbon dioxide does over 100 years.
The majority of global, and U.S., HFC
use is in the refrigeration and air
conditioning sector. HFC emissions are
projected to increase substantially and
at an increasing rate over the next
several decades if their production is
left uncontrolled. In the United States,
emissions of HFCs are increasing more
quickly than those of any other group of
GHGs, and globally they are increasing
10 to 15 percent annually. At that rate,
emissions are projected to double by
2020 and triple by 2030.
HFCs are also rapidly accumulating in
the atmosphere. The atmospheric
concentration of HFC–134a has
increased by about 10 percent per year
from 2006 to 2012, and the
concentrations of HFC–143a and HFC–
125, which are components of
commonly used refrigerant blends, have
risen over 13 and 16 percent per year
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82277
from 2007 to 2011, respectively.
Without action, annual global emissions
of HFCs are projected to rise to about
6,400 to 9,900 MMTCO2eq in 2050,
which is comparable to the drop in
annual GHG emissions of ODS of 8,000
MMTCO2eq between 1988 and 2010
(UNEP, 2011).
As these HFCs accumulate in the
atmosphere, they change the balance
between energy entering the Earth’s
climate from the sun and energy
escaping the Earth into space. The
change in the net rate at which energy
enters the atmosphere is called radiative
forcing. By 2050, the buildup of HFCs
in the atmosphere is projected to
increase radiative forcing to 0.22–0.25
W m2. To appreciate the significance of
the projected HFC radiative forcing
within the context of all GHGs, the
forcing from HFCs would be 6–9% of
that from CO2 in the IPCC’s
representative concentration pathways
(RCP6 and RCP8.5) in 2050 (Velders et
al., 2015).
iii. Montreal Protocol Amendment
Proposal
For the past six years, the United
States, Canada, and Mexico have
proposed an amendment to the
Montreal Protocol to phase down the
production and consumption of HFCs.
The United States seeks adoption of an
amendment that is acceptable to all
Parties. Global benefits of the
amendment proposal would yield
significant reductions of over 90
gigatons of carbon dioxide equivalent
(CO2eq) through 2050. A number of
other Parties to the Montreal Protocol
have also proposed amendments to
phase down global production and
consumption of HFCs. These proposals
were introduced by a group of Island
States; the European Union; and India.
On November 6, 2015, the Parties to the
Montreal Protocol adopted the ‘‘Dubai
Pathway’’ on HFCs, which provides that
the Parties would work together, within
the Montreal Protocol, to adopt an HFC
amendment in 2016.
4. Petition From the Alliance for
Responsible Atmospheric Policy
On January 31, 2014, the Alliance for
Responsible Atmospheric Policy (the
Alliance) petitioned the Agency to
initiate a rulemaking to apply the
section 608 refrigerant management
regulations to HFCs and other substitute
refrigerants. In that petition, the
Alliance requested that EPA extend the
section 608 regulations relating to
refrigerant sales and distribution
restrictions, and the evacuation,
certification, reclamation and recovery,
leak repair, reporting and recordkeeping
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requirements to HFCs. The petition
argues that applying the section 608
requirements to HFCs ‘‘would increase
the environmental benefits already
realized from the section 608
regulations, through reduced HFC
emissions, and would complement the
United States’ goal of a global phase
down in HFC production and
consumption.’’ The petition cites
sections 608(c)(2) and 301(a) of the CAA
as authority for these revisions. A copy
of the petition is included in the docket
for this rulemaking. While EPA is not
taking today’s action solely as a result
of the Alliance petition, this rulemaking
constitutes the Agency’s response to the
petition.
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D. What are the goals of this rule?
The Agency has two goals for this
rulemaking. The first is to promote the
proper handling and use of ozonedepleting and substitute refrigerants.
Doing so will protect the stratospheric
ozone layer by reducing emissions of
ODS refrigerants and protect the climate
system by reducing emissions of
refrigerant gases with high GWPs. HighGWP refrigerants include both ODS
refrigerants and most substitute
refrigerants, including HFCs, that EPA
has not exempted from the venting
prohibition under CAA section 608. The
second goal of this rulemaking is to
harmonize the requirements across all
major refrigerant types and update the
regulations in plain language to reduce
uncertainty and complexity for the
regulated community, as well as
increase clarity, encourage compliance,
and facilitate enforcement.
1. Promoting the Proper Handling of
Refrigerants
Today’s rule will reduce the use and
emission of refrigerants, maximize the
recapture and recycling of such
substances, and further interpret,
explain, and enforce the prohibition on
knowingly venting or releasing
refrigerants during the maintenance,
service, repair, or disposal of
appliances.
EPA estimates that this rule will
result in annual reductions in emissions
of approximately 114 ODP-weighted
metric tons. A separate support
document Analysis of the Economic
Impact and Benefits of Final Revisions
to the National Recycling and Emission
Reduction Program contains a full
discussion of the benefits of this rule
and is available in the docket.
Stratospheric ozone depletion
decreases the atmosphere’s ability to
shield life on the Earth’s surface from
the sun’s UV radiation. The links
between stratospheric ozone depletion
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and public health concerns are well
established. Emissions of ODS lead to
chemical reactions that reduce the
amount of ozone in the stratosphere.
Less ozone in the stratosphere means
that more UVA and UVB radiation
reaches the earth’s surface and is
incident on exposed organisms,
including humans. Adverse health
effects associated with exposure to UV
radiation include skin cancer, cataracts,
and immune suppression. The Scientific
Assessment of Ozone Depletion,5
prepared by the Scientific Assessment
Panel to the Montreal Protocol, and
Environmental Effects of Ozone
Depletion and its Interactions with
Climate Change,6 prepared by the
Environmental Effects Assessment Panel
to the Montreal Protocol provide
comprehensive information regarding
the links between emissions of ODS,
ozone layer depletion, UV radiation,
and human health effects. Both
documents are available in the docket
for this rule.
The most common forms of skin
cancer are strongly associated with UV
radiation, and UV exposure is the most
preventable cause of skin cancer (U.S.
Department of Health and Human
Services. The Surgeon General’s Call to
Action to Prevent Skin Cancer.
Washington, DC: U.S. Department of
Health and Human Services, Office of
the Surgeon General; 2014). Skin cancer
is the most common form of cancer in
the United States, with more than 3.5
million new cases diagnosed annually
(American Cancer Society, Cancer Facts
and Figures, 2015). Rates for new cases
of melanoma, the most serious form of
skin cancer, have been rising on average
1.4 percent each year over the last 10
years (National Cancer Institute, SEER
Stat Fact Sheets: Melanoma of the Skin,
available at https://seer.cancer.gov/
statfacts/html/melan.html, accessed
May 5, 2015). In 2015, it is estimated
that 70,000 Americans will have been
diagnosed with melanoma and almost
10,000 will have died as a result of the
disease (American Cancer Society,
Cancers Facts and Figures, 2015).
Non-melanoma skin cancers are less
deadly than melanomas, but if left
untreated they can spread, causing
disfigurement and more serious health
problems. There are two primary types
5 World Meteorological Organization (WMO),
Scientific Assessment of Ozone Depletion: 2014,
World Meteorological Organization, Global Ozone
Research and Monitoring Project—Report No. 55,
416 pp., Geneva, Switzerland, 2014.
6 United Nations Environment Programme,
Environmental Effects Assessment Panel,
Environmental effects of ozone depletion and its
interactions with climate change: progress report,
2011, Photochem. Photobiol. Sci., 2012, 11, DOI:
10.1039/c1pp90033a.
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of non-melanoma skin cancers. Basal
cell carcinomas are the most common
type of skin cancer tumors. Basal cell
carcinoma grows slowly, and rarely
spreads to other parts of the body. It
can, however, penetrate to the bone and
cause considerable damage. Squamous
cell carcinomas are tumors that may
appear as nodules or as red, scaly
patches. This cancer can develop into
large masses and can spread to other
parts of the body.
Other UV-related skin disorders
include actinic keratoses and premature
aging of the skin. Actinic keratoses are
skin growths that occur on body areas
exposed to the sun. The face, hands,
forearms, and neck are especially
susceptible to this type of lesion.
Although premalignant, actinic
keratoses are a risk factor for squamous
cell carcinoma. Chronic exposure to the
sun also causes premature aging, which
over time can make the skin become
thick, wrinkled, and leathery.
Research has shown that UV radiation
increases the likelihood of certain
cataracts. (Taylor, H.R., et al., 1988.
Effect of ultraviolet radiation on
cataract formation, New England
Journal of Medicine, 319, 1429–33;
West, S. et al., 2005. Model of Risk of
Cortical Cataract in the US Population
with Exposure to Increased Ultraviolet
Radiation due to Stratospheric Ozone
Depletion, American Journal of
Epidemiology, 162, 1080–1088.)
Cataracts are a form of eye damage in
which a loss of transparency in the lens
of the eye clouds vision. If left
untreated, cataracts can lead to
blindness. Although curable with
modern eye surgery, cataracts diminish
the eyesight of millions of Americans.
Other kinds of eye damage caused by
UV radiation include pterygium (i.e.,
tissue growth that can block vision),
skin cancer around the eyes, and
degeneration of the macula which
contains the part of the retina where
visual perception is most acute.
Another benefit of reducing
refrigerant emissions is protection of the
climate system. Many refrigerants,
including ODS and substitutes for ODS,
are potent GHGs, having GWPs
thousands of times higher than that of
carbon dioxide (CO2), which has a GWP
of one. For example, HCFC–22 has a
GWP of 1,810. R–404A, a commonly
used HFC refrigerant blend, has a GWP
of 3,922. Other common HFC
refrigerants, with their GWPs, include
R–134a (1,430), R–410A (2,088), R–
407A (2,107), and R–507A (3,985). EPA
estimates that today’s rule will reduce
GWP-weighted emissions by
approximately 7.3 MMTCO2eq per year.
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To briefly summarize, GHGs cause
climate change by trapping heat on
Earth. The Earth is constantly receiving
energy from the sun in the form of
radiation, while at the same time,
energy is radiating away into space,
mostly as infrared radiation. By
absorbing and scattering radiation that
otherwise would escape into space,
GHGs throw off the balance between
incoming and escaping radiation,
resulting in more energy in the Earth’s
climate system.
As described in the EPA’s 2009
Endangerment Finding (74 FR 66496)
and subsequent reports by the IPCC, the
United States Global Change Research
Program, and the National Research
Council, climate change impacts
threaten the health of Americans in
multiple ways and touch on nearly
every aspect of public welfare. For more
information on GHGs and climate
change in the United States, visit
www.epa.gov/climatechange.
2. Improving Rule Effectiveness
The second goal of today’s rule is to
improve the clarity and effectiveness of
the subpart F regulations. Achieving the
health and environmental benefits of
these rules depends on widespread
compliance, and understanding of the
regulations by the regulated community
enhances compliance.
EPA has begun an initiative to
improve the effectiveness of its rules
called Next Generation Compliance. The
vision for this initiative is to make it
easier for the regulated community to
understand and comply with
environmental laws and inform the
public about their performance. Most
importantly, this initiative will help
ensure that all Americans are protected
from significant risks to human health
and the environment and have access to
information that allows them to more
fully engage in environmental
protection efforts.
The Agency has identified several
interconnected components in the
Office of Enforcement and Compliance
Assurance’s 2014–2017 strategic plan
for its Next Generation Compliance
initiative that can improve the
effectiveness of rules:
• Effective Regulations: Design
regulations that are clear, as easy to
implement as possible, and that contain
self-reinforcing drivers. For example,
where possible, design regulations such
that regulated facilities can take steps to
monitor their own performance to
prevent violations, or be certified by an
independent 3rd party.
• Advanced Monitoring: Use
advanced monitoring technology for the
government, industry, and the public to
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more easily find information on
pollutant discharges/emissions,
environmental conditions, and
noncompliance.
• Electronic Reporting: Implement
electronic systems to make reporting
easier, more efficient, and less costly.
For the user, these systems offer speed,
convenience, expanded information
choices, and filing capabilities. For
government, they offer the ability to
increase transparency, improve our
ability to spot pollution and compliance
issues, and respond quickly to emerging
problems.
• Transparency: Make the
information we have today more
accessible, and make new information
obtained from advanced monitoring and
electronic reporting publicly available.
• Innovative Enforcement: Use Next
Generation Compliance principles and
tools in enforcement planning and
cases.
Effective Regulations. The Agency and
industry have more than 20 years of
experience implementing and operating
under the refrigerant management
regulations in subpart F. Through that
experience, it has become clear that
there are elements of the program that
could be made more effective. This rule
revises the structure of these regulations
to clearly lay out the process for
repairing refrigerant leaks and adds
steps to ensure that the repairs were
successful. This rule also for the first
time addresses chronically leaking
systems in a manner that minimizes the
burden on compliant systems. EPA has
reorganized the subpart so affected
entities can more easily find the
provisions that apply to them, including
recordkeeping and reporting. This rule
removes outdated requirements and,
where appropriate, removes
unnecessary distinctions between
refrigerants, appliance types, and
recovery equipment types. Clearer
regulations will also be supported by
comprehensive compliance assistance
materials for each industry segment
affected by this final regulation. EPA
hopes to make it easier for the regulated
community to understand their
obligations when handling refrigerants,
thereby improving compliance and
reducing damage to the environment.
Advanced Monitoring. EPA is
encouraging owners/operators of
appliances containing 50 or more
pounds of refrigerant to install
automatic leak detection equipment.
Such systems provide continuous
information about whether a system is
leaking, allowing leaks to be caught
sooner. This can reduce both refrigerant
costs and labor costs of manually
inspecting refrigeration systems.
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Electronic Reporting. EPA has
established the email address
608reports@epa.gov and this rule
requires that all reports that do not
contain confidential business
information be submitted to EPA at that
address. EPA is also revising the
regulations to explicitly state that
owners and operators of appliances
subject to the leak repair provisions may
use electronic systems to track when
and how much refrigerant is added to
equipment and to keep other required
records.
Transparency. EPA is requiring
members of the regulated community to
post additional information online that
is of use to this sector. For example,
equipment testing organizations must
post lists of certified recovery and/or
recycling equipment on their Web sites
rather than submit paper reports to EPA.
Certifying organizations must also
publish lists of technicians that they
certify online to assist technicians who
have lost their certification cards. EPA
also posts to its Web site data on the
amount of ODS refrigerant reclaimed
each year. Under this final rule EPA will
begin collecting and making available
reclamation data for non-exempt
substitute refrigerants which should
provide EPA and the general public a
greater understanding of the extent of
HFC recovery and reclamation.
Innovative Enforcement. EPA has
incorporated innovative enforcement
principles into subpart F since its
inception, and this rule updates and
strengthens those principles. For
example, the refrigerant sales restriction
is an effective way to ensure that anyone
maintaining, servicing, or repairing an
appliance is a certified technician. EPA
has also required certification of
refrigerant recovery equipment by
independent third parties (i.e., UL and
Air Conditioning, Heating, and
Refrigeration Institute (AHRI)) to ensure
that recovery equipment meets the
applicable standards. This ensures that
technicians who use these devices to
recover refrigerant are also using
equipment that, when following the
manufacturer’s instructions, will meet
the minimum refrigerant evacuation
requirements. EPA also relies on third
parties to administer the technician
certification exam.
E. What are the major revisions being
finalized in this rule?
EPA is finalizing most of the proposed
revisions to the regulations for the
National Recycling and Emission
Reduction Program. Some of these
revisions strengthen the existing
program, in particular by requiring
owners and operators to repair systems
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that leak at lower rates than what is
currently required and to verify that
those repairs were successful. Others
extend, as appropriate, the regulations
to HFCs and other non-exempt
substitute refrigerants. Still other
revisions improve the effectiveness of
the regulations. After considering
comments, EPA has decided not to
finalize certain aspects of the proposal.
This section briefly discusses the major
proposed revisions and the final actions
that EPA is taking. Detailed discussions
of all of the revisions to the regulations
finalized in this action, changes from
the proposal, and responses to
significant comments are in Section IV
of this notice. EPA also summarizes and
responds to all significant comments on
the proposed action in the comment
response document in the docket.
1. Extend the Regulations To Cover
Substitute Refrigerants
EPA is finalizing the proposed
extension of the requirements of the
National Recycling and Emission
Reduction Program to substitute
refrigerants that have not been
exempted from the venting prohibition
(also referred to in this action as ‘‘nonexempt substitutes’’).
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2. Strengthen Leak Repair Requirements
Prior to this rule, the leak rates for
ODS equipment were 35 percent for IPR
and commercial refrigeration
appliances, and 15 percent for comfort
cooling and other appliances. EPA
proposed leak rates of 20 percent for IPR
and commercial refrigeration and 10
percent for comfort cooling and other
appliances. Based in part on comments
received on the proposal, EPA is
finalizing leak rates for ODS equipment
as follows: 30 percent for IPR, 20
percent for commercial refrigeration
appliances, and 10 percent for comfort
cooling and other appliances. EPA is
also extending the new leak rates to
equipment using HFCs and other
substitute refrigerants that are not
exempt from the venting prohibition.
After considering public comments,
EPA is modifying the proposed leak
inspection requirements in this final
rule. EPA proposed to require quarterly
or annual leak inspections for all
appliances with a full charge of 50
pounds or greater, with the more
frequent inspections applying to larger
systems. In the revisions finalized in
this rule, EPA is requiring quarterly or
annual leak inspections only for
appliances that have exceeded the
applicable leak rate. Similar to the
proposal, owners or operators can forgo
leak inspections if they install,
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continuously operate, and maintain
automatic leak detection systems.
Based on comments, EPA has given
particular attention to situations where
the proposed regulations would have
required the retrofit or retirement of an
appliance. EPA has modified the final
rule in numerous places to support the
proper repair of leaking systems. Most
notably, EPA is modifying the proposed
chronic leaker provision. EPA proposed
that appliances containing 50 or more
pounds of ODS or substitute refrigerant
that leak more than 75 percent of the
appliance’s full charge in each of two
consecutive 12-month periods would
have to be retired or mothballed. EPA is
finalizing a requirement that owners or
operators of appliances that leak 125
percent of their full charge in a calendar
year must submit a report to EPA
detailing their repair efforts. The report
must be submitted no later than March
1 following the calendar year of the
≥125 percent leak.
3. Extend the Sales Restriction to
Substitute Refrigerants, With an
Exception for Small Cans of MVAC
Refrigerant
substitute refrigerant transferred for
reclamation by refrigerant type.
EPA is reducing the burden in this
final rule by only requiring maintaining
records typically generated in the field
during the normal disposal of
appliances. Therefore, EPA is not
finalizing the proposed requirement to
keep records indicating the amount of
refrigerant recovered from each
appliance. Instead, EPA is finalizing a
requirement to record the total amount
of refrigerant, by type, recovered from
all appliances they disposed of over a
calendar month. This tally can be
performed less frequently and at a
central location.
5. Update the Technician Certification
Program
EPA is finalizing the requirement that
technicians be certified to handle HFCs
and other non-exempt substitutes, as
proposed. EPA is also finalizing the
proposed requirement for certifying
organizations to publish lists or create
online databases of technicians that they
certify.
4. Establish Recordkeeping for
Appliances Containing More Than 5
and Less Than 50 Pounds of ODS and
Non-Exempt Substitute Refrigerant
6. Improving Readability and
Restructuring the Requirements
EPA is finalizing the extensive
revisions to the regulations in subpart F
to more clearly state the requirements of
the National Recycling and Emission
Reduction Program and to remove
potentially ambiguous language, with
minor changes from the proposal. EPA
is modifying some of the proposed
revisions to address additional
suggestions raised by commenters.
EPA’s intent with these edits is to
improve readability, not to change the
substantive content or requirements of
the regulations. For edits to the
regulations that are intended to be
substantive, EPA is discussing those
revisions in this notice. EPA is adding
to the docket a red-line version of the
final regulatory text from subpart F that
shows the final revisions to the prior
regulations to assist the regulated
community in identifying the
differences.
EPA is finalizing revisions to the
regulations that require that technicians,
or the company employing technicians,
keep records when disposing of
appliances containing more than five
and less than 50 pounds of refrigerant.
These records include the company
name, location of the appliance, date of
recovery, and type of refrigerant
recovered for each appliance. EPA is
also finalizing, with some modification,
the revision to the regulations requiring
that technicians keep records of the
amounts of ODS and non-exempt
F. Enforcement of Subpart F Regulations
Subpart F regulations must be
enforced to realize their full
environmental and human health
benefit. This section briefly presents
examples of recent actions that EPA has
taken to enforce the venting prohibition,
leak repair, and safe disposal provisions
of subpart F. Several provisions that
EPA is finalizing in this rule are based
on lessons learned in taking these
enforcement actions. These revisions are
intended to encourage compliance and
facilitate potential future enforcement of
EPA is finalizing the proposed
restriction that non-exempt substitute
refrigerants may only be sold to
technicians certified under sections 608
or 609 of the CAA. In the case of MVAC
refrigerant, EPA is exempting the sale of
small cans of non-ODS substitutes to
allow the do-it-yourself (DIY)
community to continue servicing their
personal vehicles. EPA is requiring that
small cans of non-exempt substitute
refrigerant be outfitted with self-sealing
valves by January 1, 2018. Based on
comments, EPA is not finalizing the
proposal to prohibit the sale of small
cans that do not contain self-sealing
valves that were manufactured or
imported prior to that requirement
taking effect.
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the requirements actions of these and
other sections of the subpart F
regulations. EPA’s Web site contains
more information on these enforcement
actions.7
Some commenters stated that EPA
should seek better ways to enforce the
pre-existing regulations for Class I and
II ODS. One commenter encouraged
EPA to continue to identify costeffective means of ensuring that the
entire regulated community supports
and follows lawful policies and
regulations. Another commenter wrote
that venting of HFCs above de minimis
levels must be severely penalized for the
rule to be as effective as possible. That
commenter encouraged EPA to reiterate
that EPA welcomes information and
reporting on an anonymous basis
regarding parties known to be venting
ODS, HFCs, and any non-exempt
substitute.
EPA responds that the Agency has
enforced and continues to enforce these
regulations in actions that range from
civil fines to criminal prosecutions. EPA
encourages anyone who suspects or
witnesses unlawful releases of
refrigerants or other violations of CAA
regulations to report an environmental
violation to EPA (www.epa.gov/
enforcement/report-environmentalviolations). In 2014 and 2015, EPA
brought or assisted in three cases against
individuals for violating the venting
prohibition when cutting into the
refrigerant lines to steal metal from
HCFC–22 containing air conditioners.
Under the plea agreement in a case from
2014, the individual cutting the
refrigerant line must serve 31 months in
federal prison and then remain under
court supervision for an additional 12
months during which time he must
perform 200 hours of community
service.
EPA entered into consent decrees
with the supermarket chains Safeway in
2013, Costco in 2015, and Trader Joe’s
in 2016 for violations of the leak repair
provisions of subpart F for their
commercial refrigeration units. In 2015,
EPA obtained corrective action with the
United States Navy to resolve
allegations of failing to perform leak rate
calculations when servicing comfort
cooling equipment, and with DuPont for
improper maintenance and repair of two
large IPR units. In 2012, EPA executed
consent decrees with Icicle Seafoods,
American Seafoods Co. LLC, and Pacific
Longline Co. LLC for failure to repair
refrigerant leaks at chilling units aboard
its fishing vessels and failure to verify
the adequacy of repairs before resuming
7 https://www.epa.gov/ozone-layer-protection/
enforcement-actions-under-title-vi-clean-air-act.
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operations, among other violations. In
March of 2016, Ocean Gold Seafoods,
Inc. and Ocean Cold, LLC entered into
a consent decree with EPA that resolved
alleged violations for failing to promptly
repair refrigerant leaks and failing to
keep adequate records of the servicing
of their IPR equipment necessary to
prevent leaks.
EPA has executed consent decrees to
resolve alleged violations of the safe
disposal regulations in subpart F. These
include decrees in 2016 with Parkway
Iron and Metal, and in 2015 with Metal
Dynamics and Basic Recycling, as well
as at least forty-five non-judicial
settlements against scrap recyclers in
2014 and 2015.
EPA also continues to take steps to
maintain the integrity of the
certification programs under subpart F.
EPA recently revoked over a dozen
technician certification programs that
had failed to submit the required
biannual activity report (81 FR 28864).
EPA is also ensuring that certified
refrigerant reclaimers continue to
operate in accordance with § 82.164 and
maintain records and submit reports in
accordance with § 82.166. EPA recently
published a notice announcing the
previous revocation of the certification
of eight refrigerant reclaimers and giving
a ninth reclaimer notice of impending
revocation (80 FR 75455).
G. Incorporation by Reference
This action involves technical
standards. In some instances, EPA is
deciding to use a modified version of an
industry standard for purposes of this
rule; in others, EPA is deciding to use
an industry standard by incorporating it
by reference exactly as written. This
section summarizes the technical
standards that EPA is incorporating by
reference and describes how interested
parties can access those standards.
Sections IV.C (small cans of MVAC
refrigerant), Section IV.G (recovery and/
or recycling equipment), and IV.K
(reclamation requirements) contain
further discussion of these technical
standards including comments received
on EPA’s proposal to incorporate certain
standards by reference.
EPA is incorporating by reference UL
1963, Requirements for Refrigerant
Recovery/Recycling Equipment, Fourth
Edition, June 1, 2011 in appendix B4.
This establishes standards for refrigerant
recovery and refrigerant recovery/
recycling equipment to ensure the
equipment can be used safely with
flammable refrigerants. The standard is
available at www.comm-2000.com or by
writing to Comm 2000, 151 Eastern
Avenue, Bensenville, IL 60106. The cost
is $798 for an electronic copy and $998
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for hardcopy. UL also offers a
subscription service to the Standards
Certification Customer Library (SCCL)
that allows unlimited access to their
standards and related documents. The
cost of obtaining this standard is not a
significant financial burden for
equipment manufacturers. Therefore,
EPA concludes that the UL standard
being incorporated by reference is
reasonably available.
EPA is not incorporating by reference
AHRI Standard 700–2016,
Specifications for Refrigerants. Rather
EPA is basing the content found in
appendix A on this standard. This
standard establishes purity
specifications for refrigerants, and
specifies the associated methods of
testing for acceptability of refrigerants.
The standard is available at
www.ahrinet.org or by mail at AirConditioning, Heating, and Refrigeration
Institute (AHRI), 2111 Wilson
Boulevard, Suite 500, Arlington, VA
22201. EPA is incorporating by
reference publically available versions
of the standards referenced in AHRI
Standard 700–2016. Specifically, these
standards are:
—2008 Appendix C for Analytical Procedures
for AHRI Standard 700–2014—Normative.
This document establishes definitive test
procedures for determining the quality of
new, reclaimed and/or repackaged
refrigerants in support of the standards
established in AHRI–700. An electronic
copy of the appendix is available at
www.ahrinet.org. It is also available by
mail at Air-Conditioning, Heating, and
Refrigeration Institute (AHRI), 2111 Wilson
Boulevard, Suite 500, Arlington, VA 22201.
The cost of obtaining this standard is not
a significant financial burden. Therefore,
EPA concludes that the standard being
incorporated by reference is reasonably
available.
—2012 Appendix D for Gas Chromatograms
for AHRI Standard 700–2014—Informative
Air-Conditioning, Heating, and
Refrigeration Institute. This appendix
provides figures for the gas chromatograms
used with Appendix C to AHRI Standard
700–2015: Normative. An electronic copy
of the appendix is available at
www.ahrinet.org. It is also available by
mail at Air-Conditioning, Heating, and
Refrigeration Institute (AHRI), 2111 Wilson
Boulevard, Suite 500, Arlington, VA 22201.
The cost of obtaining this standard is not
a significant financial burden. Therefore,
EPA concludes that the standard being
incorporated by reference is reasonably
available.
—Federal Specification for ‘‘Fluorocarbon
Refrigerants,’’ BB–F–1421 B, dated March
5, 1982. This section of this standard
establishes a method to determine the
boiling point and boiling point range of a
refrigerant. The standard is available in the
docket for this rulemaking. Therefore, EPA
concludes that the standard being
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incorporated by reference is reasonably
available.
—GPA STD–2177, Analysis of Natural Gas
Liquid Mixtures Containing Nitrogen and
Carbon Dioxide by Gas Chromatography,
2013, Gas Processors Association. This
standard establishes methods for analyzing
demethanized liquid hydrocarbon streams
containing nitrogen/air and carbon
dioxide, and purity products such as
ethane/propane mix that fall within
compositional ranges indicated in the
standard. The standard is available at
www.techstreet.com or by writing to
Techstreet, 6300 Interfirst Drive, Ann
Arbor, MI 48108. The cost of this standard
is $55 for an electronic copy or $65 for a
printed edition. The cost of obtaining this
standard is not a significant financial
burden. Therefore, EPA concludes that the
standard being incorporated by reference is
reasonably available.
—ASTM Standard D1296–01–2012, Standard
Test Method for Odor of Volatile Solvents
and Diluents, July 1, 2012, ASTM
International. This test method covers a
comparative procedure for observing the
characteristic and residual odors of volatile
organic solvents and diluents to determine
their odor acceptability in a solvent
system. The standard is available at
www.astm.org or by writing to ASTM, 100
Barr Harbor Drive, P.O. Box C700, West
Conshohocken, PA 19428–2959. The cost
of this standard is $39. The cost of
obtaining this standard is not a significant
financial burden. Therefore, EPA
concludes that the standard being
incorporated by reference is reasonably
available.
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EPA is not incorporating by reference
AHRI Standard 740–2016, Performance
Rating of Refrigerant Recovery
Equipment and Recovery/Recycling
Equipment. Rather EPA is basing the
content found in appendices B3 and B4
on this standard. This standard
establishes methods of testing for rating
and evaluating the performance of
refrigerant recovery equipment and
recovery/recycling equipment. The
standard is available at www.ahrinet.org
or by mail at Air-Conditioning, Heating,
and Refrigeration Institute (AHRI), 2111
Wilson Blvd., Suite 500, Arlington, VA
22201. EPA is incorporating by
reference the standards referenced in
AHRI Standard 740–2016. Specifically,
these standards are:
—ANSI/ASHRAE Standard 63.2–1996 (RA
2010) Method of Testing Liquid-Line Filter
Drier Filtration Capability, 2010, American
National Standards Institute/American
Society of Heating, Refrigerating and AirConditioning Engineers, Inc. The purpose
of this standard is to prescribe a laboratory
test method for evaluating the filtration
capability of filters and filter driers used in
liquid lines of refrigeration systems. The
standard is available at www.ashrae.org or
by mail at AHSRAE, 1791 Tullie Circle
NE., Atlanta, GA 30329. The cost is $39 for
an electronic copy or printed edition. The
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cost of obtaining this standard is not a
significant financial burden. Therefore,
EPA concludes that the standard being
incorporated by reference is reasonably
available.
—UL Standard 1963–2011, Refrigerant
Recovery/Recycling Equipment, Fourth
Edition, 2011, American National
Standards Institute/Underwriters
Laboratories, Inc. This standard establishes
safety requirements for and methods to
evaluate refrigerant recovery and
refrigerant recovery/recycling equipment.
The standard is available at www.comm2000.com or by writing to Comm 2000, 151
Eastern Avenue, Bensenville, IL 60106.
The cost is $798 for an electronic copy and
$998 for hardcopy. UL also offers a
subscription service to the Standards
Certification Customer Library (SCCL) that
allows unlimited access to their standards
and related documents. The cost of
obtaining this standard is not a significant
financial burden for equipment
manufacturers. Therefore, EPA concludes
that the UL standard being incorporated by
reference is reasonably available.
—AHRI Standard 110–2016, AirConditioning, Heating and Refrigerating
Equipment Nameplate Voltages, 2016, AirConditioning, Heating, and Refrigeration
Institute. This standard establishes voltage
rating requirements, equipment
performance requirements, and
conformance conditions for airconditioning, heating, and refrigerating
equipment. A free electronic copy of this
standard is available at www.ahrinet.org. It
is also available by mail at AirConditioning, Heating, and Refrigeration
Institute (AHRI), 2111 Wilson Boulevard,
Suite 500, Arlington, VA 22201. The cost
of obtaining this standard is not a
significant financial burden. Therefore,
EPA concludes that the standard being
incorporated by reference is reasonably
available.
—International Standard IEC 60038, IEC
Standard Voltages, Edition 7.0, 2009–06,
International Electrotechnical Commission.
This standard specifies standard voltage
values which are intended to serve as
preferential values for the nominal voltage
of electrical supply systems, and as
reference values for equipment and system
design. The standard is available at
www.techstreet.com or by writing to
Techstreet, 6300 Interfirst Drive, Ann
Arbor, MI 48108. The cost of this standard
is $50. The cost of obtaining this standard
is not a significant financial burden.
Therefore, EPA concludes that the standard
being incorporated by reference is
reasonably available.
EPA is not incorporating by reference
California Air Resources Board, Test
Procedure for Leaks from Small
Containers of Automotive Refrigerant,
TP–503, as amended January 5, 2010.
Rather EPA is basing the content found
in appendix E on this standard. This
standard establishes methods for
assessing the leak rate from small
containers of refrigerant. A copy of this
standard is available in the docket and
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www.arb.ca.gov/regact/2009/hfc09/
hfc09.htm.
III. EPA’s Authority Under the Clean
Air Act
A. Summary of EPA’s Authority for the
Revisions to Subpart F
The authority for this action is
provided primarily by section 608 of the
CAA. Section 608 is divided into three
subsections, which together comprise
the ‘‘National Recycling and Emission
Reduction Program.’’ Among other
things, section 608 of the CAA requires
EPA to establish a comprehensive
program to limit emissions of ozonedepleting refrigerants. It also prohibits
the knowing release or disposal of
ozone-depleting refrigerants and their
substitutes in the course of maintaining,
servicing, repairing, or disposing of airconditioning and refrigeration
equipment in a manner which permits
such a substance to enter the
environment. The three subsections of
section 608 are described in more detail
in the following paragraphs.
Section 608(a) requires EPA to
establish standards and requirements
regarding use and disposal of class I and
II substances. With regard to
refrigerants, EPA is to promulgate
regulations establishing standards and
requirements for the use and disposal of
class I and class II substances during the
maintenance, service, repair, or disposal
of air-conditioning and refrigeration
appliances or IPR. Regulations under
section 608(a) are to include
requirements to reduce the use and
emission of ODS to the lowest
achievable level, and to maximize the
recapture and recycling of such
substances. Section 608(a) further
provides that ‘‘such regulations may
include requirements to use alternative
substances (including substances which
are not class I or class II substances) or
to minimize use of class I or class II
substances, or to promote the use of safe
alternatives pursuant to section [612] or
any combination of the foregoing.’’
Section 608(b) requires that the
regulations issued pursuant to section
608(a) contain requirements for the safe
disposal of class I and class II
substances, including requirements that
such substances shall be removed from
such appliances, machines, or other
goods prior to the disposal of such items
or their delivery for recycling.
Section 608(c) establishes a selfeffectuating prohibition, commonly
called the ‘‘venting prohibition,’’ that
generally speaking, makes it unlawful to
knowingly release ODS and substitute
refrigerants in a way that allows the
refrigerant to enter the environment
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while maintaining, servicing, repairing,
or disposing of air-conditioning or
refrigeration equipment. More
specifically, section 608(c)(1), effective
July 1, 1992, makes it unlawful for any
person in the course of maintaining,
servicing, repairing, or disposing of an
appliance or IPR to knowingly vent,
release, or dispose of any ODS used as
a refrigerant in such equipment in a
manner that permits that substance to
enter the environment. The statute
exempts from this prohibition ‘‘[d]e
minimis releases associated with good
faith attempts to recapture and recycle
or safely dispose’’ of such a substance.
Section 608(c)(2) extends the provisions
of (c)(1), including the prohibition on
venting, to substitutes for class I or class
II refrigerants, effective November 15,
1995, unless the Administrator
determines that such venting, release, or
disposal ‘‘does not pose a threat to the
environment.’’ EPA has determined
through prior rulemakings that specific
substances do not pose a threat to the
environment when vented, released, or
disposed of and has exempted those
specific substitutes from the venting
prohibition. The full list of substitutes
that EPA has exempted from this
prohibition is at 40 CFR 82.154(a). For
some substitutes that have been
exempted from the venting prohibition
under section 608(c)(2) and § 82.154(a)
the exemption only applies when the
substitute is used in specified
applications, but for others, the
exemption is for the substitute
refrigerant as used in all applications.8
The statutory standards under section
608(a) against which the regulations
concerning the use and disposal of
ozone-depleting substances are to be
measured are whether they ‘‘reduce the
use and emission of such substances to
the lowest achievable level’’ and
‘‘maximize the recapture and recycling
of such substances.’’ These standards
are often complementary in the context
of maintenance, service, repair, and
disposal of air conditioning and
refrigerant equipment. For example, in
the context of recycling, maximizing
recycling will also help reduce the use
and emission of these substances to the
lowest achievable level. These statutory
standards also bear a relationship to the
de minimis releases addressed in
section 608(c). More specifically,
8 EPA is using the term ‘‘non-exempt substitute’’
in this notice to refer to substitute refrigerants that
have not been exempted from the venting
prohibition under CAA section 608(c)(2) and 40
CFR 82.154(a) in the relevant end-use. Similarly,
the term ‘‘exempt substitute’’ refers to a substitute
refrigerant that has been exempted from the venting
prohibition under section 608(c)(2) and § 82.154(a)
in the relevant end-use.
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emissions that occur while complying
with EPA’s recovery and recycling
regulations are considered de minimis,
because those regulations set forth
practices and requirements which result
in the lowest achievable level of
emissions. EPA has established this
interpretation in its regulations under
section 608 for ODS refrigerants.
On May 14, 1993, EPA published the
original regulations implementing
subsections (a), (b), and (c)(1) for ODS
refrigerants (58 FR 28660). These
regulations include evacuation
requirements for appliances being
serviced or disposed of, standards and
testing requirements for recovery and/or
recycling equipment, certification
requirements for technicians, purity
standards and testing requirements for
used refrigerant sold to a new owner,
certification requirements for refrigerant
reclaimers, leak repair requirements,
and requirements for the safe disposal of
appliances that enter the waste stream
with the charge intact. This rule also
stated that the Agency interprets ‘‘de
minimis’’ to mean releases that occur
while the recycling and recovery
requirements of regulations under
sections 608 and 609 are followed.
However, those requirements only
applied to ODS refrigerants, and these
regulations did not explain how the
venting prohibition or the de minimis
exemption applied for substitute
refrigerants. Among other things, this
rulemaking addresses that gap in the
regulations.
1. Applying Regulations Under Section
608 to Substitute Refrigerants
In this rule, EPA is extending, as
appropriate, provisions of the refrigerant
recovery and/or recycling regulations,
which previously had only applied to
ODS refrigerants, to non-exempt
substitute refrigerants. To summarize
briefly, EPA’s authority for this action
rests largely on section 608(c), which
EPA interprets to provide it authority to
promulgate regulations that interpret,
explain, and enforce the venting
prohibition and the de minimis
exemption, as they apply to both ODS
refrigerants and non-exempt substitute
refrigerants. Accordingly, this rule
establishes a comprehensive and
consistent framework that applies to
both ODS and non-exempt substitute
refrigerants. This, in turn, provides
clarity to the regulated community
concerning the measures that should be
taken to comply with the venting
prohibition for non-exempt substitutes
and reduces confusion and enhances
compliance for both ODS and non-
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exempt substitutes.9 EPA’s authority to
issue regulations for section 608(c) is
supplemented by section 301(a), which
provides authority for EPA to ‘‘prescribe
such regulations as are necessary to
carry out [the EPA Administrator’s]
functions under this Act.’’ In addition,
EPA’s authority to extend the
recordkeeping and reporting
requirements to non-exempt substitutes
is supplemented by section 114, which
provides authority to the EPA
Administrator to require recordkeeping
and reporting in carrying out provisions
of the CAA. Finally, the extension of
requirements under section 608 to nonexempt substitutes in this rule is also
supported by section 608(a) because
having a consistent regulatory
framework for non-exempt substitutes
and ODS is expected to reduce
emissions of ODS refrigerants, as well as
non-exempt substitutes.
Section 608 of the CAA is ambiguous
with regard to EPA’s authority to
establish refrigerant management
regulations for substitute refrigerants.
As Congress has not precisely spoken to
this issue, EPA has the discretion to
adopt a permissible interpretation of the
CAA. Chevron, U.S.A., Inc. v. Natural
Res. Def. Council, Inc., 467 U.S. 837,
843–44 (1984). Primarily under the
authority of section 608(a), EPA has
established standards for the proper
handling of ODS refrigerants during the
maintenance, service, repair, or disposal
of an appliance to maximize the
recovery and/or recycling of such
substances and reduce the use and
emission of such substances. Section
608(a) expressly requires EPA to
promulgate regulations that apply to
class I and class II substances, but is
silent on whether its requirements apply
to substitute substances. On the other
hand, section 608(c)(2) contains
provisions for substitute refrigerants
which parallel those for ODS
refrigerants in section 608(c)(1). For
instance, as for ODS refrigerants under
section 608(c)(1), section 608(c)(2)
prohibits knowingly venting, releasing,
or disposing of any substitute refrigerant
in the course of maintaining, servicing,
repairing, or disposing of an appliance
9 EPA used an analogous analysis in promulgating
the regulations for section 608 originally. In that
rulemaking, EPA explained that extending
regulatory requirements to class II substances
(rather than only regulating class I substances)
would facilitate compliance with the venting
prohibition, in part by providing clear guidance to
technicians recovering class II substances on what
releases do and do not constitute violations of the
prohibition. 58 FR 28667. EPA also explained that
it was desirable to provide a ‘‘clear, consistent
framework for fully implementing the prohibition
on venting for all refrigerants’’ to ‘‘minimize
confusion and maximize compliance with the
prohibition.’’ 58 FR 28666.
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in a manner which permits the
substance to enter the environment.10
This creates a tension or ambiguity
because the regulated community is
subject to an explicit and selfeffectuating prohibition on venting,
releasing, or disposing of non-exempt
substitute refrigerants while
maintaining, servicing, repairing, or
disposing of equipment but at the same
time is not explicitly required by section
608(a) to recover substitute refrigerant
prior to servicing or disposing of
equipment or to engage in any of the
practices or behaviors that EPA has
established to minimize the emission
and release of ODS refrigerants during
such maintenance, service, repair, or
disposal.
Moreover, some amount of refrigerant,
whether ODS or substitute, is inevitably
released during the maintenance,
servicing, repair, and disposal of airconditioning or refrigeration appliances
or equipment. Without a clear
regulatory framework for determining
what requirements apply during the
maintenance, servicing, repair, and
disposal of such equipment containing
a non-exempt substitute refrigerant, the
regulated community and the public
would not have the same measure of
certainty as to whether such releases
violate the venting prohibition or fall
within the de minimis exemption to that
prohibition, and what steps must be
taken to comply with CAA obligations
for such substitute refrigerants in
undertaking such actions. Accordingly,
this rulemaking finalizes regulations to
interpret and explain how the venting
prohibition and the de minimis
exemption apply to non-exempt
substitute refrigerants. In doing so, EPA
is clarifying that the regulated
community that uses non-exempt
substitute refrigerants may rely on the
de minimis exemption to the venting
prohibition if they follow the amended
requirements in subpart F.
Consistent with the language of
sections 608(c)(1) and (2), this rule aims
to avoid knowing releases of nonexempt substitute refrigerants into the
environment in the course of
maintaining, servicing, repairing, or
disposing of an appliance or IPR, unless
10 As noted previously, this venting prohibition
does not apply to substitutes for which the
Administrator has made a determination that such
venting, release, or disposal ‘‘does not pose a threat
to the environment’’ under CAA 608(c)(2). As
indicated elsewhere in this notice, EPA is not
extending the requirements of the refrigerant
management program to substitutes that have been
exempted from the venting prohibition in this
action. Where a substitute has been exempted only
in specific uses, the requirements in this rule apply
to uses in which the substitute has not been
exempted.
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those releases meet the criteria for the
de minimis exemption. Section 608(c)(1)
provides an exemption from the venting
prohibition for ‘‘[d]e minimis releases
associated with good faith attempts to
recapture and recycle or safely dispose
of any such [class I or class II]
substance.’’ In this context, EPA
interprets this provision to exempt
releases that occur while the recycling
and recovery requirements of
regulations under sections 608 and 609
are followed and has promulgated
regulations consistent with that
interpretation.
In particular, EPA has incorporated
both the venting prohibition and the de
minimis exemption into the regulations
at § 82.154(a). Further, the last sentence
in the existing regulations at
§ 82.154(a)(2) provides that ‘‘refrigerant
releases shall be considered de minimis
only if they occur when’’ enumerated
regulatory practices in subpart F or,
alternatively, subpart B are followed.
These subpart F requirements are the
ones established in the 1993 rule
mentioned above, and as periodically
amended. The term refrigerant,
however, was defined in § 82.152 for
purposes of subpart F to mean ‘‘any
substance consisting in part or whole of
a class I or class II ozone-depleting
substance that is used for heat transfer
purposes and provides a cooling effect.’’
This definition did not include
substitute substances. In addition, EPA
had not yet applied the recycling and
recovery requirements to non-ODS
substitutes, and therefore these
provisions which make clear how to
qualify for the de minimis exemption for
ODS refrigerants did not apply to
substitute refrigerants.
EPA interprets section 608(c) such
that the statutory de minimis exemption
contained in section 608(c)(1) also
applies to substitute refrigerants.
Section 608(c)(2) states that, effective
November 15, 1995, ‘‘paragraph 1 shall
also apply’’ to the venting, release, or
disposal of any substitute substance for
class I or class II substances. As section
608(c)(2) incorporates ‘‘paragraph 1’’ it
is reasonable to interpret it to also
contain this de minimis exemption,
which is included in paragraph 1 of
section 608(c). However, the Act’s
exemption applies only to those de
minimis releases ‘‘associated with good
faith attempts to recapture and recycle
or safely dispose of refrigerants’’ and the
Act does not explicitly address what
would be considered such ‘‘good faith
attempts to recapture and recycle or
safely dispose’’ of either ODS or
substitute refrigerants. In fact, Title VI
does not contain any further
explanation or definition of those terms.
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Moreover, the statutory provisions that
require EPA to promulgate regulations
addressing recapturing and recycling
requirements and safe disposal
requirements in section 608(a) and
608(b) expressly mention that they
apply to ODS refrigerants but are silent
as to application to substitute
refrigerants. This silence and the
corresponding tension between these
provisions creates an ambiguity in
section 608 and EPA may fill that gap
with a permissible interpretation.
Chevron, U.S.A., Inc. v. Natural Res.
Def. Council, Inc., 467 U.S. 837, 843–44
(1984).
Consistent with the interpretation of
section 608(c)(2) as incorporating the de
minimis exemption, prior to this
rulemaking EPA’s regulations at
§ 82.154(a)(2) stated that ‘‘[d]e minimis
releases associated with good faith
attempts to recycle or recover . . . nonexempt substitutes are not subject to
this prohibition,’’ thus applying the
statutory de minimis exemption from
the venting prohibition to good faith
efforts to recycle or recover non-exempt
substitute refrigerants. However, in
contrast to the regulations for ODS
refrigerants, the regulations did not
provide any specific provisions to
explain what constitutes such a ‘‘good
faith attempt’’ with respect to substitute
refrigerants. Thus, the prior regulations
were unclear as to what requirements or
practices regulated parties must follow
to qualify for the de minimis exemption,
and thereby comply with the venting
prohibition, for non-exempt substitute
refrigerants.
EPA has discussed this issue in
previous notices. On June 11, 1998, EPA
proposed to apply the de minimis
exemption in section 608(c)(1) to
substitute refrigerants and to issue
regulations under section 608(c)(2) that
interpret, clarify, and enforce the
venting prohibition for substitutes (63
FR 32044). EPA stated in that proposed
rule, ‘‘[w]hile section 608(c) is selfeffectuating, EPA regulations are
necessary to define ‘(d)e minimis
releases associated with good faith
attempts to recapture and recycle or
safely dispose’ of such substances and
to effectively implement and enforce the
venting prohibition.’’ 63 FR 32046.
In the final rule issued March 12,
2004 (69 FR 11946), EPA extended the
regulations interpreting and enforcing
the 608(c)(1) de minimis exemption to
blends containing an ODS component
but not to refrigerants containing only
substitutes. As stated in that rule at 69
FR 11949:
[V]enting of all substitute refrigerants,
including HFC and PFC refrigerants (and
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blends thereof) is prohibited under section
608(c), with the exception of de minimis
releases associated with good faith attempts
to recapture and recycle. The de minimis
releases exception, however, is not selfeffectuating, nor is it self-explanatory.
EPA believes that regulatory clarification is
necessary to define such ‘[d]e minimis
releases’ and ‘good faith attempts to
recapture and recycle or safely dispose of any
such substance’ and safely dispose of
appliances to effectively implement and
enforce the venting prohibition. Section
608(c)(1) in conjunction with 608(c)(2) of the
Act allow for an exemption for de minimis
releases associated with good faith attempts
to recapture and recycle or safely dispose of
substitutes for class I and class II ODSs used
as refrigerants. A regulation reflecting the
statutory requirement for recovery of
substitute refrigerants is an essential part of
a regulatory framework within which de
minimis releases and good faith attempts to
recapture and recycle or safely dispose of
substitute refrigerants can be defined.
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This interpretation that the statutory
de minimis exemption applies to
substitutes but is not self-explanatory is
consistent with the interpretation of
section 608(c)(1) and (2) that EPA
articulates in this section. However, in
the March 2004 Rule EPA did not
finalize its proposal to extend all of the
subpart F regulations to substitute
refrigerants. See 69 FR 11953.
Following the March 12, 2004,
rulemaking, the Administrator
promulgated a direct final rule to amend
the regulatory definitions of refrigerant
and technician, as well as the venting
prohibition, to correct and clarify the
intent of those regulations (70 FR 19273,
April 13, 2005). As part of that rule,
EPA edited the regulatory venting
prohibition to reflect the statutory de
minimis exemption in section 608(c)(2).
As explained at 70 FR 19275:
In accordance with section 608(c)(2) of
Title VI of the Clean Air Act (as amended in
1990), de minimis releases associated with
good faith attempts to recapture and recycle
or safely dispose of such substitutes shall not
be subject to the prohibition. EPA has not
promulgated regulations mandating
certification of refrigerant recycling/recovery
equipment intended for use with substitutes;
therefore, EPA is not including a regulatory
provision for the mandatory use of certified
recovery/recycling equipment as an option
for determining de minimis releases of
substitutes. However, the lack of a regulatory
provision should not be interpreted as an
exemption to the venting prohibition for nonexempted substitutes. The regulatory
prohibition at § 82.154(a) reflects the
statutory reference to de minimis releases of
substitutes as they pertain to good faith
attempts to recapture and recycle or safely
dispose of such substitutes.
In order to emphasize that the knowing
venting of HFC and PFC substitutes remains
illegal during the maintenance, service,
repair, and disposal of appliances and to
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make certain that the de minimis exemption
for refrigerants remains in the regulatory
prohibition, § 82.154(a) is amended to reflect
the venting prohibition of section 608(c)(2) of
the Act.
In that action, EPA added the phrase
‘‘[d]e minimis releases associated with
good faith attempts to recycle or recover
refrigerants or non-exempt substitutes
are not subject to this prohibition’’ to
§ 82.154(a)(2) (emphasis added).
However, because EPA has not extended
the regulatory recycling and recovery
requirements to substitute refrigerants,
the regulations have not provided
clarity or certainty how this exception
applies to non-exempt substitute
refrigerants that do not contain an ODS.
Moreover, as for ODS, some amount of
substitute refrigerant is released during
the maintenance, servicing, repair, or
disposal of appliances, even if
precautions to avoid such releases are
taken. For ODS refrigerants, the rules
have provided certainty to the regulated
community that if specific identified
practices are followed, regulated entities
would not be held liable for releases of
small amounts of refrigerant incidental
to these actions. These regulations have
supported the recovery or recycling of
ODS refrigerants and reduced the
emissions of such substances. In other
words, for ODS, EPA has reasonably
interpreted the de minimis exemption to
apply only to the small amount of
emissions that cannot be prevented by
following the regulatory requirements.
This interpretation of the de minimis
exemption is equally reasonable for
non-exempt substitute refrigerants.
Accordingly, to provide the same clarity
and certainty to the regulated
community for substitute refrigerants, it
is important to clarify how this
exemption applies to non-exempt
substitute refrigerants that do not
contain an ODS. To do so, EPA is
finalizing its proposal to extend the
amended regulations concerning
emissions reduction and recapture and
recycling of CFC and HCFC refrigerants,
found at 40 CFR part 82, subpart F, to
all substitute refrigerants that have not
been exempted from the venting
prohibition under § 82.154(a)(1).
These regulations establish standards
and requirements related to the
maintenance, servicing, repair, or
disposal of appliances and IPR that use
ODS or non-exempt substitutes as
refrigerants. They are designed to
minimize or avoid knowing releases or
disposal, in the course of those
activities, of ODS and non-exempt
substitute refrigerants in a manner
which allows that substance to enter the
environment. For example, the
regulations establish requirements to
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minimize emissions during appliance
maintenance, servicing, or repair (e.g.,
by requiring that technicians recover
refrigerant from an appliance before
servicing and by setting standards for
the repair of appliances that have leaked
above the applicable threshold), as well
as disposal (e.g., by requiring the use of
certified recovery equipment to remove
refrigerant from the appliance before the
final disposal). Accordingly, the
regulations finalized in this action fall
within the scope of EPA’s authority to
interpret and explain the venting
prohibition, and to give regulated
entities greater certainty about what is
required to comply.
EPA is also adopting a broader
interpretation of the venting prohibition
under CAA sections 608(c)(1) and (2) in
this action. As discussed in more detail
in the proposal for this action (80 FR
69486), in the 1993 Rule EPA stated that
the venting prohibition did not
‘‘prohibit ‘topping off’ systems, which
leads to emissions during the use of
equipment’’ but explained that the
‘‘provision on knowing releases does
however, include the situation in which
a technician is practically certain that
his or her conduct will cause a release
of refrigerant during the maintenance,
service, repair, or disposal of
equipment’’ or fails to appropriately
investigate facts that demand
investigation (58 FR 28672). The
proposal also explained that EPA had
subsequently moved toward a broader
interpretation of the venting prohibition
in the proposed 2010 Leak Repair Rule
(80 FR 69486, quoting 75 FR 78570).
EPA concludes that its statements in the
1993 Rule presented an overly narrow
interpretation of the statutory venting
prohibition. Consistent with the
direction articulated in the proposed
2010 Leak Repair Rule, EPA is adopting
a broader interpretation. When
refrigerant must be added to an existing
appliance, other than when originally
charging the system or for a seasonal
variance, the owner or operator
necessarily knows that the system has
leaks. At that point the owner or
operator is required to calculate the leak
rate. If the leaks exceed the applicable
leak rate for that particular type of
appliance, the owner or operator will
know that absent repairs, subsequent
additions of refrigerant will be released
in a manner that will permit the
refrigerant to enter the environment.
Therefore, EPA interprets section 608(c)
such that if a person adds refrigerant to
an appliance that he or she knows is
leaking, he or she also violates the
venting prohibition unless he or she has
complied with the applicable practices
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referenced in § 82.154(a)(2), as revised,
including the leak repair requirements,
as applicable.
This action extending the regulations
under subpart F to non-exempt
substitutes is additionally supported by
the authority in section 608(a) because
regulations that minimize the release
and maximize the recapture and
recovery of non-exempt substitutes will
also reduce the release and increase the
recovery of ozone-depleting substances.
Improper handling of substitute
refrigerants is likely to contaminate
appliances and recovery cylinders with
mixtures of ODS and non-ODS
substitutes, which can lead to illegal
venting because such mixtures are
difficult or expensive to reclaim or
appropriately dispose of. Under the
prior definition of refrigerant, any
substance that consists in whole or in
part of a class I or class II ODS and is
used for heat transfer and provides a
cooling effect, is a refrigerant and is
subject to the requirements for ODS.
However, when a regulated entity
believes it is using a substitute
refrigerant, and that substitute becomes
contaminated with ODS, the
contamination may not be apparent to
the user, and thus, the user may not be
aware that the requirements for
refrigerants apply to that substance.
This confusion can also lead to illegal
venting of ODS. In short, the authority
to promulgate regulations regarding the
use of class I and II substances
encompasses the authority to establish
regulations regarding the proper
handling of substitutes where this is
needed to reduce emissions and
maximize recapture and recycling of
class I and II substances. Applying
consistent requirements to all nonexempt refrigerants will reduce
complexity and increase clarity for the
regulated community and promote
compliance with those requirements for
ODS refrigerants, as well as their
substitutes.
2. Recordkeeping Provisions
In this action, EPA is also establishing
new recordkeeping requirements, as
well as extending existing
recordkeeping requirements to nonexempt substitutes. EPA’s authority to
establish and extend these requirements
is supported by CAA sections 608(a),
608(c), and 114, consistent with the
description of these authorities offered
above. These new recordkeeping
requirements are an important part of
EPA’s efforts to address illegal venting
of refrigerants, improve accounting of
refrigerants in affected appliances, and
facilitate enforcement of requirements
under section 608. For example, EPA is
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establishing a new recordkeeping
requirement for the disposal of
appliances containing more than five
and less than 50 pounds of refrigerant.
Section 608(a) gives EPA explicit
authority to implement requirements
that reduce ODS refrigerant emissions to
the lowest achievable level. This
recordkeeping requirement, along with
other recordkeeping requirements in
this rule, further the recovery,
reclamation, and/or destruction of ODS
refrigerants and discourages the illegal
venting of such refrigerants from
affected appliances. Because it
minimizes the emission of ODS
refrigerant, EPA has authority for this
requirement as it relates to ODS
appliances under 608(a). Additionally,
providing a consistent standard for ODS
and non-exempt substitute refrigerants
will facilitate the recovery, reclamation,
and/or destruction of both ODS and
non-ODS refrigerants and, accordingly,
will reduce the emission of such
refrigerants. EPA will continue to
evaluate how best to use the information
to promote the recovery of refrigerants
and compliance with these provisions.
EPA also has authority under section
114 of the CAA to require that
technicians document that appliances
containing an ODS refrigerant or a nonexempt substitute refrigerant have been
properly evacuated prior to disposal.
Section 114 of the CAA provides the
primary authority to establish these
recordkeeping and reporting
requirements because it provides EPA
authority to require recordkeeping and
reporting in carrying out provisions of
the CAA, including the venting
prohibition under CAA sections 608(c)
and the requirements under 608(a).
Because these records will help EPA
determine whether requirements under
sections 608(c) and 608(a) are being
complied with, this requirement falls
within the scope of section 114.
3. Amendments Related to Practices and
Requirements for ODS
In addition to extending the existing
regulations in subpart F to non-exempt
substitute refrigerants, EPA is also
revising and augmenting the existing
requirements that apply to ozonedepleting substances, including:
Lowered leak rates, periodic leak
inspections for equipment that has
leaked above the leak threshold, leak
repair verification tests, and
recordkeeping requirements for the
disposal of appliances containing more
than five and less than 50 pounds of
refrigerant. EPA is also finalizing its
proposal to update and revise subpart F
to improve clarity and enforceability.
EPA’s authority for these amendments is
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based primarily on section 608(a),
which requires EPA to promulgate
regulations regarding the use and
disposal of class I and II substances to
‘‘reduce the use and emission of such
substances to the lowest achievable
level’’ and ‘‘maximize the recapture and
recycling of such substances.’’ In
addition, because EPA is further
elaborating the requirements and
practices that regulated parties must
follow to qualify for the de minimis
exemption from the venting prohibition
for ODS, EPA is drawing on its authority
under section 608(c)(1). EPA’s authority
for these actions is also supplemented
by section 301(a) and 114, in the same
way as described earlier in this notice.
4. Provisions Related to MVAC and
MVAC-Like Appliances
While section 608 covers all
appliances,11 section 609 of the CAA
directs EPA to establish requirements to
prevent the release of refrigerants during
the servicing of MVACs specifically.
MVACs are defined under EPA’s section
608 implementing regulations at 40 CFR
part 82, subpart F as ‘‘any appliance that
is a motor vehicle air conditioner as
defined in 40 CFR part 82, subpart B.’’
40 CFR 82.152. Under section 609, in 40
CFR part 82, subpart B, MVACs are
defined as ‘‘mechanical vapor
compression refrigeration equipment
used to cool the driver’s or passenger’s
compartment of any motor
vehicle. . . .’’ 40 CFR 82.32(d).
A motor vehicle is defined under
subpart B as ‘‘any vehicle which is selfpropelled and designed for transporting
persons or property on a street or
highway, including but not limited to
passenger cars, light duty vehicles, and
heavy duty vehicles. This definition
does not include a vehicle where final
assembly of the vehicle has not been
completed by the original equipment
manufacturer.’’ 40 CFR 82.32(c).
Under section 609, no person
repairing or servicing motor vehicles for
consideration may perform any service
on an MVAC that involves the
refrigerant without properly using
approved refrigerant recovery or
recovery and recycling equipment and
no such person may perform such
service unless such person has been
properly trained and certified.
Refrigerant handling equipment must be
certified by EPA or an independent
organization approved by EPA. Section
609 also prohibits the sale or
distribution of any class I or class II
MVAC refrigerant in a container of less
11 For EPA’s discussion on the definition of
appliance, see Section IV.A.
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than 20 pounds to any person who is
not certified under section 609.
Regulations issued under section 609
are in 40 CFR part 82, subpart B, and
include information on prohibitions and
required practices (§ 82.34), approved
refrigerant handling equipment
(§ 82.36), approved independent
standards testing organizations (§ 82.38),
requirements for technician certification
and training programs (§ 82.40), and
certification, recordkeeping, and public
notification requirements (§ 82.42).
Appendices A–F of subpart B provide
standards for minimum operating
requirements for MVAC servicing
equipment.
Because MVACs are defined in
subpart F as an ‘‘appliance’’ (§ 82.152),
the section 608 regulations found in
subpart F are generally applicable to
MVAC systems. However, because
servicing and technician training and
certification are regulated under section
609, EPA’s section 608 regulations in
subpart F defer to those requirements in
subpart B. Procedures involving MVACs
that are not regulated under section 609,
such as the disposal of MVACs and the
purchase of refrigerant for use in
MVACs besides ODS refrigerant in
containers less than 20 pounds, are
covered by section 608. The prohibition
in section 608 against venting ODS and
substitute refrigerants is also applicable
to refrigerants used in MVAC systems.
EPA also regulates MVAC-like
appliances under subpart B. MVAC-like
appliances are used to cool the driver’s
or passenger’s compartment of off-road
vehicles, including agricultural and
construction vehicles.12 While these
types of systems are outside of the scope
of the definition of motor vehicle
established in subpart B, there are
similarities between MVAC-like
appliances and MVAC systems. In the
1993 Rule, under the authority of
section 608, EPA adopted requirements
for the certification and use of recycling
equipment for MVAC-like appliances in
subpart B. MVAC-like appliances may
only be serviced by a certified
technician and this requirement is not
limited to those servicing for
consideration, but MVAC-like
technicians have the option to be
certified under section 608 or 609.
Through this rulemaking EPA is
finalizing its proposal to apply the
provisions of section 608 to non-exempt
ODS substitutes, including those used
12 We are amending the subpart F definition of
‘‘MVAC-like appliance’’ to replace the term ‘‘offroad motor vehicle’’ with the term ‘‘off-road
vehicles or equipment.’’ This revision is not
intended to effect a substantive change in the
equipment covered by this definition but rather
simply is intended to clarify the definition.
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in MVAC and MVAC-like appliances.
EPA is not extending the regulations
under section 609 as part of this
rulemaking because the 609 regulations
have been applicable to all substitute
substances since 1995.13
5. Consideration of Economic Factors
Section 608 of the CAA does not
explicitly address whether costs or
benefits should be considered in
developing regulations under that
section. The statutory standards under
section 608(a) against which the
regulations concerning the use and
disposal of ozone-depleting substances
are to be measured are whether they
‘‘reduce the use and emission of such
substances to the lowest achievable
level’’ and ‘‘maximize the recapture and
recycling of such substances.’’ The
phrase ‘‘lowest achievable level’’ as
used in section 608(a)(3) is not clear on
its face as to whether economic factors
should be considered in determining
what is the ‘‘lowest achievable level.’’
Title VI does not further explain or
define the term nor does it expressly
state whether economic factors may or
must be considered. Thus, EPA has
discretion to adopt a reasonable
interpretation. EPA has previously
interpreted this phrase to allow the
consideration of economic factors. See
58 FR 28659, 28667 (May 14, 1993).
EPA did not propose to revise that
interpretation and has considered
economic as well as technological
factors in the development of this rule.
The phrase ‘‘de minimis releases
associated with good faith attempts to
recapture and recycle or safely dispose
of any such substance’’ as used in
section 608(c)(1) and as applied to
substitutes through section 608(c)(2) is
similarly not clear on its face as to
whether economic factors may be
considered in determining what is de
minimis. Title VI does not further
address this issue. Thus, EPA has
discretion to adopt a reasonable
interpretation. EPA interprets this
phrase to allow the consideration of
economic factors. The Senate Manager’s
Statement for the Clean Air Act
13 The Agency has indicated plans to issue a
separate proposed rule to consider adopting
standards from the Society of Automotive Engineers
(SAE) for servicing equipment in 40 CFR subpart B.
These standards are: SAE J2843 R–1234yf Recovery/
Recycling/Recharging Equipment for Flammable
Refrigerants for Mobile Air-Conditioning Systems,
SAE J2851 Recovery Equipment for Contaminated
Refrigerant from Mobile Automotive Air
Conditioning Systems, and SAE J3030 Automotive
Refrigerant Recovery/Recycling Equipment
Intended for Use with Multiple Refrigerants. In a
future rulemaking, EPA intends to propose to
incorporate by reference these standards developed
by SAE International’s Interior Climate Control
Committee.
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82287
Amendments of 1990 indicates that ‘‘the
exception is included to account for the
fact that in the course of properly using
recapture and recycling equipment, it
may not be possible to prevent some
small amount of leakage’’ (Cong. Rec. S
16948 (Oct. 27, 1990), reprinted in 1 A
Legislative History of the Clean Air Act
Amendments of 1990, at 929 (1993)).
EPA does not read this statement as
expressing an intent that the Agency
consider only technological factors in
setting standards for recapture and
recycling equipment and the proper use
of such equipment. Rather, EPA
understands it as meaning that once
those standards are set, only the small
amount of emissions that cannot be
prevented by following such standards
should be exempted.
Because the statutory language does
not dictate a particular means of taking
economic factors into account, if at all,
EPA has discretion to adopt a
reasonable method for doing so. In
developing this rule, EPA has not
applied a strict cost-benefit test, but
rather has focused primarily on the state
of air conditioning and refrigeration best
practices and recovery technology,
while also giving consideration to costs
and benefits. The fact that industry has
identified and uses these best practices
indicates they are affordable.
EPA considered cost for many specific
aspects of this rule. For instance, as
discussed in the leak repair section
(Section IV.F of this notice), EPA
considered what is achievable from a
technical perspective, while also
considering the costs of those practices
and technologies and the benefits from
their use, when determining whether to
establish new requirements and
extending existing requirements to nonexempt substitute refrigerants. See the
technical support document Analysis of
the Economic Impact and Benefits of
Final Revisions to the National
Recycling and Emission Reduction
Program in the docket for sensitivity
analyses conducted on various options.
Generally, the leak repair requirements
finalized in this action take into account
that the variability of those conditions
in the field is significant in each airconditioning and refrigeration sector.
For example, some appliances generally
have more leaks than others. An
industrial process refrigeration
appliance can have thousands of
pounds of refrigerant running through
miles of piping, resulting in numerous
opportunities for leaks to occur,
whereas a household refrigerator
typically has about one pound of
refrigerant in a hermetically sealed
refrigerant loop that rarely leaks. The
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requirements in this rule reflect that
difference.
As another example, EPA considered
the costs of extending the refrigerant
sales restriction to small cans of nonexempt substitutes used for MVAC
servicing. EPA decided a more cost
effective method of reducing emissions
is requiring that manufacturers install
self-sealing valves on small cans rather
than limiting the sale of small cans to
certified technicians only. As a final
example of how EPA considered costs
in this rulemaking, EPA relied heavily
on the existing program and
requirements already in place for ODS
refrigerants rather than developing a
new and separate set of requirements for
non-exempt substitutes. This will allow
the regulated community to in many
instances use or adapt existing
compliance procedures for non-exempt
substitutes rather than having to
develop wholly new approaches to
managing compliance. This approach
should help regulated entities to better
predict and manage compliance costs.
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B. Comments and Responses Related to
EPA’s Authority
This section summarizes many
comments related to EPA’s authority
under the Clean Air Act to issue this
rule and EPA’s responses. Other
comments related to EPA’s authority for
this action are addressed in the response
to comments document found in the
docket for this action.
1. Comment: EPA Does Not Have
Authority To Regulate Substitutes That
Have Limited or No Impact on
Stratospheric Ozone Under Section 608
Some comments asserted that EPA
does not have the authority to extend
the existing refrigerant management
provisions in subpart F to non-ozone
depleting refrigerants. Some
commenters stated that under a plain
language reading of section 608(a) it is
clear that regulations to reduce use and
emissions apply only to class I and class
II substances and not substitutes. These
comments said the language of section
608 as a whole authorizes a wide range
of prescriptive regulations to reduce the
use and emissions of class I and class II
refrigerants but mentions substitutes
only twice: That their use be promoted
and the general requirement that their
knowing venting is prohibited.
On the contrary, other comments
agreed that EPA had authority to extend
these regulations to substitutes. One
such comment stated: ‘‘We believe that
both the language of section 608 and the
Agency’s discretionary authority allow
the extension of section 608’s
requirements to substitutes for ODS in
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the regulations.’’ 14 These commenters
noted that extending these regulations
to substitutes allows for a coherent and
robust regime to address venting across
the full suite of appliances and
applications, and that applying the
regulatory regime to substitute
refrigerants would more fully allow for
and incentivize the recovery and
reclamation of both ODS and
substitutes. These comments concluded
that because ODS and substitutes can be
used interchangeably, the regulation of
substitutes reinforces the regulation of
ODS and more reliably reduces ODS
emissions. Another commenter who
generally believes the Agency does not
have authority to apply the leak repair
provisions to appliances using
substitute refrigerants does concede that
there may be provisions of subpart F
which are directly related to emissions
occurring in the course of maintenance,
service, repair or disposal activities and
might be reasonably extended to
substitute refrigerants.
EPA disagrees that its regulatory
authority under CAA section 608
extends only to class I and class II (ODS)
substances and not to substitutes. EPA
also disagrees with comments
contending that, as a factual matter,
extension of the refrigerant management
regulations to substitutes would not
reduce emissions of ODS and maximize
the recapturing and recycling of ODS.
Section 608 expressly addresses
substitute refrigerants in the venting
prohibition in section 608(c)(2). As
explained previously in this notice,
EPA’s authority for extending the
refrigerant management regulations to
substitute refrigerants is based primarily
on section 608(c)(2) (via interpretation,
explanation, and enforcement of the
venting prohibition for substitutes) and
secondarily on section 608(a) (via the
corresponding reductions in ODS
emissions and increases in ODS
recapture and recycling that are
expected to result from requiring
consistent practices for ODS and
substitute refrigerants), with additional
support from CAA sections 301 and 114.
More specifically with respect to
section 608(a), that section states that
the regulations under that section shall
include requirements that reduce the
use and emission of ODS to the lowest
achievable level and that maximize their
recapture and recycling. EPA’s
interpretation that section 608(a)
supports the extension of the refrigerant
management regulations to substitutes is
14 Comment submitted by Natural Resources
Defense Council and Institute for Governance and
Sustainable Development, David Doniger, et. al., pg.
3. EPA–HQ–OAR–2015–0453–0121.
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based on reducing emissions of ODS
and maximizing recapturing and
recycling of ODS. This is because
requiring practices that are consistent
for both ODS and for substitutes reduces
the likelihood that a person
maintaining, servicing, repairing, or
disposing of an appliance that uses ODS
as a refrigerant mistakenly believes that
it contains a substitute refrigerant and
fails to apply the proper procedures for
ODS, leading to increased ODS
emissions or failure to recover or
reclaim ODS. It is also because in the
course of servicing, repairing, or
maintaining appliances there is a
potential for mixing ODS and substitute
refrigerants, which may lead to venting
or release of the mixture due to the
difficulty of reclamation. EPA has
explained that the venting prohibition
applies to all refrigerants consisting in
whole or in part of an ODS, such as a
blend with an HFC component. (See 69
FR 11949). Accordingly, the
commenters’ statements that section
608(a) only applies to class I and class
II substances fail to recognize that
regulation of substitutes can help
effectuate the statutory purposes
mentioned in section 608(a). EPA is
relying in part on section 608(a) for the
extension of regulatory requirements to
substitutes because it interprets this
provision to support regulation of
substitutes when such regulations can
help achieve the purposes listed in
section 608(a). The extension of
regulatory requirements to substitutes in
this action is supported by section
608(a) because that extension of
requirements to substitutes is expected
to reduce ODS emissions and further
maximize the recovery and reclamation
of ODS. After consideration of all the
comments, EPA concludes that it has
authority to extend the refrigerant
management regulations to substitutes,
and that section 608(a) is a relevant
source of authority because applying a
consistent and coherent regulatory
regime to both ODS and substitute
refrigerants improves the application of
the requirements to ODS, promoting the
recovery and reclamation of ODS and
reducing ODS emissions. Such ODSfocused goals are well within EPA’s
authority under CAA section 608(a).15
Commenters also disagreed with
EPA’s statement that there is ambiguity
in the CAA regarding the Agency’s
authority to create a comprehensive
regulatory program akin to that
15 Although these comments do not relate to
EPA’s authority to regulate ODS, we do note for
completeness’ sake that CAA section 608(a) also
provides authority for the portions of this
rulemaking that revise the refrigerant management
requirements as those apply directly to ODS.
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applicable to class I and class II ODS.
These commenters expressed that
Congress explicitly addressed
substitutes in section 608(c)(2) and did
not in section 608(a) and that Congress
was fully aware and capable of granting
EPA authority to regulate substitutes
under section 608(a) and it chose not to
do so. They further commented that
Congress knew which provisions of
Title VI it wished to extend to
substitutes and which it did not, and
pointed to sections 609, 612, and 615 as
allowing EPA to regulate substitutes.
These comments concluded that
Congress demonstrated that it knew
how to include substitutes in refrigerant
management regulations if it wanted to.
EPA recognizes that Congress
expressly mentioned substitutes in
certain sections of Title VI of the CAA,
such as section 608(c)(2). In EPA’s
interpretation of section 608, the fact
that Congress expressly applied the
venting prohibition to substitutes in
section 608(c)(2) supports this action
because this action clarifies how EPA
interprets that venting prohibition and
explains what actions must be taken
during the maintenance, servicing,
repair, or disposal of appliances and IPR
to avoid violating the venting
prohibition. The inclusion of substitutes
in section 608(c)(2) also indicates that
Congress contemplated that regulation
of substitutes would play a role in
implementing section 608. The
ambiguity in section 608 is that
Congress created an explicit prohibition
on venting substitute refrigerants in the
course of maintaining, servicing,
repairing, or disposing of appliances or
IPR, and also provided an exception to
that prohibition for ‘‘de minimis
releases associated with good faith
attempts to recapture and recycle or
safely dispose’’ of such substances. CAA
section 608(c)(1); see also CAA section
608(c)(2) (applying paragraph (c)(1) to
the venting, release, or disposal of
substitute refrigerants). Congress,
however, did not define what releases
would be considered ‘‘de minimis’’ nor
which activities would be considered
‘‘good faith attempts to recapture and
recycle or safely dispose’’ of such
substances. Where Congress has not
directly spoken to an issue or has left
ambiguity in the statute, that silence or
ambiguity creates an assumption that
‘‘Congress implicitly delegated to the
agency the power to make policy
choices that represent a reasonable
accommodation of conflicting policies
that are committed to the agency’s care
by the statute.’’ National Ass’n of Mfrs.
v. United States DOI, 134 F.3d 1095,
1106 (D.C. Cir. 1998). As the U.S.
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Supreme Court has explained, the
‘‘power of an administrative agency to
administer a congressionally created
. . . program necessarily requires the
formulation of policy and the making of
rules to fill any gap left, implicitly or
explicitly, by Congress.’’ Chevron, 467
U.S. at 843–44. The Court later
explained, ‘‘[w]e accord deference to
agencies under Chevron, . . . because of
a presumption that Congress, when it
left ambiguity in a statute meant for
implementation by an agency,
understood that the ambiguity would be
resolved, first and foremost, by the
agency, and desired the agency (rather
than the courts) to possess whatever
degree of discretion the ambiguity
allows.’’ Smiley v. Citibank (s.D.), N.A,
517 U.S. 735, 740–741 (1996).
Accordingly, Congress’s silence with
regard to the venting prohibition and
the exception for certain releases leaves
a gap for the Agency to fill, as it is doing
in this rulemaking.
In addition to the statutory
interpretation and the principle of
Chevron deference discussed above, the
legislative history further supports the
notion that Congress anticipated and
intended for the Agency to establish
regulations that would further interpret,
explain, and enforce the exception to
the venting prohibition. A Senate Report
accompanying a version of the Senate
bill for the Clean Air Act Amendments
of 1990, which enacted Title VI,
addressed the venting prohibition and
described that it would include
‘‘[e]xceptions . . . for de minimis
releases associated with good faith
attempts to recapture, recycle and safely
dispose of’’ the substances used as
refrigerants in household appliances,
commercial refrigeration and air
conditioning units. Report of the
Committee on Environment and Public
Works United States Senate, Report
Accompanying S. 1630 (S. Rept. 101–
228) (December 20, 1989) at 396
(reprinted in 4 A Legislative History of
the Clean Air Act Amendments of 1990,
at 8736 (1993)). This report further
stated that the standards and
requirements that EPA was required to
promulgate ‘‘should include provisions
to foster implementation of this
prohibition, including guidance on what
constitutes ‘de minimis’ and ‘good
faith’.’’ Id. Thus, EPA reasonably
interprets the ambiguity in section
608(c) to mean that in creating the
exception to the venting prohibition,
Congress intended for the Agency to
provide additional specificity regarding
how a regulated entity would qualify for
this exception. This rulemaking
provides such additional specificity and
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further articulates the policy of how this
exception is interpreted, explained, and
enforced.
While EPA acknowledges that section
608(a) does not explicitly mention
substitutes, we disagree with the
conclusion that the comment draws
from that. The fact that Congress
required EPA to address ODS in a
certain manner under section 608(a) is
not the same as prohibiting EPA from
addressing other refrigerants in the same
manner. EPA has explained in the
preceding response to comments how it
interprets section 608(a) to support this
rulemaking.
Some commenters contend that
Congress specifically listed class I and
class II substances for coverage under
the regulations and under the principle
of expressio unius est exclusio alterius,
regulations cannot be applied to
refrigerants that are neither class I or
class II substances. This rule of statutory
interpretation, which has limited force
in an administrative law setting, means
that the inclusion of one thing implies
the exclusion of another thing.
However, the fact that Congress
mandated certain measures for ODS but
was silent regarding appropriate
measures for substitutes does not mean
that Congress prohibited EPA from
adopting similar measures for
substitutes. See Cheney R.R. Co. v. ICC,
902 F.2d 66, 69 (D.C. Cir. 1990) (‘‘The
contrast between Congress’s mandate in
one context with its silence in another
suggests not a prohibition but simply a
decision not to mandate any solution in
the second context, i.e., to leave the
question to agency discretion.’’)
Commenters stated that section 608(c)
is self-implementing and no
promulgation of regulations by EPA is
required or contemplated to implement
such prohibition. In contrast, 608(a) and
(b) require EPA to promulgate
regulations to establish ‘‘standards and
requirements.’’ These standards and
requirements are different in kind and
broader than the 608(c) statutory
prohibition. EPA cannot merge the
distinct requirements of 608(a) and (b)
with the statutory prohibition of 608(c).
Another commenter stated that in trying
to apply section 608(b) to any substitute
substance, EPA is inferring authority
that is not there.
EPA agrees that the prohibition under
608(c) as it applies to the knowing
venting or releasing of ODS and
substitutes is itself self-implementing.
However, that fact does not preclude
EPA from establishing regulations to
include the prohibition in the overall
context of the regulatory scheme and to
promulgate rules to further interpret,
explain, and enforce it, including by
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providing certainty to enhance
compliance. Indeed, EPA’s prior
regulations at 40 CFR 82.154 included
the venting prohibition. More
specifically, these regulations provided
that ‘‘no person maintaining, servicing,
repairing, or disposing of appliances
may knowingly vent or otherwise
release into the environment any
refrigerant or substitute from such
appliances’’ and then provided for
exceptions from this prohibition for
specified substitutes in specified enduses. These exceptions implemented the
discretion Congress left EPA under
608(c)(2) to exempt certain releases from
the venting prohibition, if the
Administrator has determined that
‘‘venting, releasing, or disposing of such
substance does not pose a threat to the
environment.’’ CAA section 608(c)(2).
Contrary to the comment, the inclusion
of this discretion in section 608(c)(2)
indicates that Congress intended for the
EPA to have authority to implement
aspects of the prohibition and in fact left
gaps in this section that it expected EPA
would fill as appropriate.
Similarly, as discussed in the
preceding response, the legislative
history indicates that in establishing the
venting prohibition, Congress expected
EPA to promulgate regulatory
‘‘provisions to foster implementation of
this prohibition, including guidance on
what constitutes ‘de minimis’ and ‘good
faith’.’’ Report of the Committee on
Environment and Public Works United
States Senate, Report Accompanying S.
1630 (S. Rept. 101–228) (December 20,
1989) at 396 (reprinted in 4 A
Legislative History of the Clean Air Act
Amendments of 1990, at 8736 (1993)).
Consistent with that Congressional
intent, the prior regulations at 40 CFR
82.154 included provisions clarifying
that ‘‘[ODS] releases shall be considered
de minimis only if they occur when’’
certain regulatory requirements are
observed. 40 CFR 82.154(a)(2). However,
those regulations did not provide the
same clarity regarding releases of nonexempt substitute refrigerants or what
practices would be considered to fall
within the ambit of ‘‘good faith attempts
to recycle or recover’’ non-exempt
substitute refrigerants. 40 CFR
82.154(a)(2). Because Congress provided
this exception to the venting prohibition
for substitutes under section 608(c)(2)
but did not specify what practices or
actions should be taken to qualify for
this exception, it is reasonable to
interpret this provision as indicating
that Congress contemplated that EPA
would resolve this ambiguity.
While Congress did not establish
specific rulemaking authority under
section 608(c)(2), Congress did provide
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a general grant of authority in CAA
section 301(a)(1) to ‘‘prescribe such
regulations as are necessary to carry out
[the Administrator’s] functions under’’
the CAA. This rulemaking authority
supplements EPA’s authority under
section 608 by authorizing EPA to
promulgate regulations necessary to
carry out its functions under section
608, including regulations necessary to
interpret the venting prohibition and
exceptions to it.
EPA disagrees with the commenter
that it is impermissibly merging the
distinct requirements of CAA sections
608(a) and (b) with section 608(c).
While EPA’s regulations under section
608(b) are simply one part of the
regulations required under section
608(a), EPA is not relying on section
608(b) to justify its extension of the
section 608 regulations to substitutes in
this rulemaking. The role of EPA’s
section 608(a) authority in this
rulemaking has been discussed above,
in a prior response to comment.
Moreover, as noted above, the fact that
Congress required EPA to address ODS
refrigerants in specific way under
section 608(a), or section 608(b) for that
matter, is not the same as precluding
EPA from addressing other refrigerants
in a similar fashion. Likewise, where
EPA has authority to establish
regulations for non-exempt substitute
refrigerants, the fact that it has exercised
its authority to establish similar
regulations for other refrigerants does
not prevent it from exercising its
authority to regulate non-exempt
substitute refrigerants in a similar
manner.
One commenter stated that using
section 608(c) to establish the same
requirements as authorized under
section 608(a) renders section 608(a)
null and stated that statutory language
should not be read in a manner that
renders other provisions of the statute
inconsistent, meaningless or
superfluous.
EPA disagrees with this comment.
Unlike section 608(c), section 608(a) is
not limited to refrigerants. EPA has
applied its authority under section
608(a) to establish or consider
regulations for ODS in non-refrigerant
applications. As an example, in 1998,
EPA issued a rule on halon management
under the authority of section 608(a)(2)
(63 FR 11084, March 5, 1998). In that
action, EPA noted that section 608(a)(2)
‘‘directs EPA to establish standards and
requirements regarding the use and
disposal of class I and II substances
other than refrigerants.’’ 63 FR 11085.
Similarly, EPA considered whether to
establish a requirement to use gas
impermeable tarps to reduce emissions
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of methyl bromide under section
608(a)(2), ultimately determining not to
do so for technological and economic
reasons. 63 FR 6008 (February 5, 1998).
In that action, EPA noted: ‘‘[s]ection
608(a)(1) of the Act provides for a
national recycling and emission
reduction program with respect to the
use and disposal of Class I substances
used as refrigerants. Section 608(a)(2)
provides for such a program with
respect to Class I and Class II substances
not covered by section 608(a)(1).’’ 63 FR
6008. Accordingly, this interpretation of
section 608(c)(2) to allow EPA to
establish requirements for non-exempt
substitute refrigerants similar to those
established under section 608(a) for
ODS refrigerants does not render section
608(a) null or superfluous. Although
EPA interprets its substantive authority
under both sections 608(a) and 608(c) to
support application of the refrigerant
management requirements to both ODS
and non-exempt substitute refrigerants,
that is different from asserting that its
section 608(c) authority would extend to
any requirement that could be imposed
under section 608(a). EPA was required
to establish certain regulations for ODS
refrigerants under section 608(a) and
then decided to use those provisions to
interpret and explain the venting
prohibition for ODS under section
608(c). The fact that EPA is now electing
to use the same requirements under
section 608(c) for substitutes does not
render 608(a) a nullity. EPA could have
established different requirements to
interpret and explain the venting
prohibition, but for the reasons
discussed above, decided to make the
requirements consistent for both ODS
and substitutes.
2. Comment: Congress Did Not Regulate
Substitutes Because It Wanted To Create
Incentives To Use Substitute
Refrigerants
One commenter asserted that
applying detailed refrigerant
management requirements to substitutes
discourages the development of
substitutes as it eliminates the incentive
to operate with fewer regulatory
requirements. Another commenter
stated that the current regulations
provide an opt-out incentive to owners
that voluntarily retrofit to a non-ozone
depleting substitute and suggested that
EPA should seek to revise the proposed
rule so that it continues to provide
similar incentives.
EPA disagrees that applying the
refrigerant management requirements to
non-exempt substitute refrigerants will
discourage the development of
substitutes. At this point in time, there
are other incentives to either retrofit or
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replace existing equipment that relies
on ODS. Most ODS have been
completely phased out and the HCFC
phaseout is well underway. Allowances
for domestic consumption of the most
common HCFC refrigerant, HCFC–22,
are set at 5.6 percent of baseline for
2016 and will decline to zero in 2020
(40 CFR 82.16, 82.15(e)). In addition,
use restrictions issued pursuant to
section 605(a) prohibit use of newly
produced HCFC–22 in equipment
manufactured on or after January 1,
2010 (40 CFR 82.15(g)(2)). The section
605(a) use restrictions further prohibit
use of newly produced HCFC–123 in
equipment manufactured on or after
January 1, 2020 (40 CFR 82.15(g)(4)).
While used HCFCs are not subject to
these restrictions, the HCFC phaseout
and the restrictions on use of newly
produced HCFCs provide clear market
signals regarding future availability of
HCFC refrigerants.
In addition, while some provisions of
the statute indicate Congressional intent
to encourage companies to use safer
alternatives, other provisions indicate
that Congress was also concerned about
the potential impacts of unregulated
releases of these substitute refrigerants.
Section 608(c)(2) is in the latter
category, as it extends the venting
prohibition to substitute refrigerants,
unless EPA determines that such
releases do not pose a threat to the
environment. Accordingly, the
application of these regulatory
requirements to non-exempt substitute
refrigerants provides clarity and
certainty to owners, operators, and
people servicing, maintaining, repairing,
or disposing of air conditioning and
refrigeration equipment of how they can
avoid violating the venting prohibition.
Such clarity and certainty is consistent
with EPA’s efforts through other
regulatory programs to facilitate and
encourage the use of substitute
refrigerants.
Other commenters stated that
Congress did not extend the refrigerant
management requirements to
substitutes, likely because it wanted to
create incentives for companies to
switch to safer alternatives.
EPA responds that Congress did
extend the venting prohibition to
substitute refrigerants and left to EPA’s
discretion how to interpret and enforce
that prohibition. While Congress did not
require EPA to interpret and enforce the
venting prohibition by regulating
substitute refrigerants in the same
manner as ODS, neither did it prevent
EPA from doing so.
Commenters also stated that 608(a)(3)
encourages EPA to use the regulations
under that provision to promote the use
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of safe alternatives. EPA responds that
while section 608(a)(3) provides that the
regulations that are required under
section 608(a) ‘‘may include
requirements . . . to promote the use of
safe alternatives pursuant to section
[612],’’ whether to include such
provisions is discretionary, not
mandatory. While Congress left such
regulations to EPA’s discretion,
Congress directly applied the venting
prohibition to substitute refrigerants
under section 608. Moreover, the
legislative history for section 608
recognizes the distinctions between
sections 612 and 608, stating: ‘‘The fact
that a particular substance has been
identified by the Administrator as a
‘safe substitute’ for purposes of section
612, does not affect the requirement for
a separate determination under [section
608]. The purposes of section 612 and
of this section are different and
substances approved under section 612
will not automatically qualify for
exclusion from the prohibition on
venting that is included in this section.’’
Statement of Senate Managers, S. 1630,
The Clean Air Act Amendments of
1990, reprinted in 1 A Legislative
History of the Clean Air Act
Amendments of 1990, at 928 (1993).
Accordingly, EPA does not interpret the
discretion provided by section 608(a)(3)
to diminish its ability to interpret,
explain, and enforce section 608(c) as it
is doing in this rule.
3. Comment: Section 608 Does Not
Authorize EPA To Regulate the Normal
Operation of Refrigerant Equipment
Commenters stated that EPA’s
authority under section 608 is limited to
regulating actions taken during
servicing, repair, or disposal of
refrigeration equipment, or class I and II
refrigerants evacuated during such
servicing and repair. These comments
further stated that EPA’s authority
extends only to technicians and that
nothing in section 608 would enable
EPA to impose liability on the
equipment owner or operator.
With regard to the actions that are
within the scope of section 608(c), as
explained earlier in this notice, EPA
interprets section 608(c) to convey
authority to interpret, explain, and
enforce the venting prohibition for both
ODS and substitute refrigerants, and
that prohibition applies to the
maintenance, service, repair, or disposal
of appliances and IPR. As explained
elsewhere in this rulemaking, this
action applies regulations to nonexempt substitute refrigerants that are
related to the maintenance, service,
repair, or disposal of such appliances or
to providing persons engaged in such
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activities with additional clarity and
certainty on how to ensure that their
actions comport with the venting
prohibition and the de minimis
exemption to it. For example, the
technician certification provisions relate
to who can maintain, service, or repair
an appliance and the evacuation and
recovery equipment provisions relate to
how to maintain, service, repair or
dispose of an appliance. Furthermore,
the comment omits the concept of
maintenance, which is included in
section 608(c). EPA notes that the
definition of the term ‘‘maintain’’
includes ‘‘to keep in an existing state;
preserve or retain’’ and to ‘‘keep in a
condition of good repair or efficiency.’’
The American Heritage College
Dictionary, 4th ed. (Houghton Mifflin,
2002), at 834; see also https://
www.merriam-webster.com/dictionary/
maintain (including in the definition of
maintain ‘‘to keep in an existing state
(as of repair, efficiency, or validity):
Preserve from failure or decline
’’) (last accessed
May 31, 2016). Thus, ‘‘maintenance’’
and ‘‘maintaining’’ include a broad
range of activities involved in
preserving equipment in normal
working order.
EPA noted in a prior response that
section 608(c) is limited to refrigerants
while section 608(a) is not. However,
the comment is incorrect that section
608(c) is limited to the activities of a
technician. Section 608(c)(2) refers to
‘‘any person,’’ and ‘‘person’’ is defined
broadly in CAA section 302, as well as
in subpart F to 40 CFR part 82. More
specifically, section 302(e) defines
‘‘person’’ to ‘‘include[ ] an individual,
corporation, partnership, association,
State, municipality, political
subdivision of a State, and any agency,
department, or instrumentality of the
United States and any officer, agent or
employee thereof.’’ Thus, the definition
clearly is not limited to technicians.
Furthermore, the current statement of
purpose and scope in subpart F,
§ 82.150, lists appliance owners and
operators as one of the persons to which
the subpart applies.
When EPA initially promulgated the
subpart F regulations, it explained that
these rules applied to owners. For
example, in the preamble to the 1993
Rule, EPA explained that it had made
‘‘additions to the scope section to clarify
that the rule covers refrigerant
reclaimers, appliance owners, and
manufacturers of appliances and
recycling and recovery equipment in
addition to persons servicing, repairing,
maintaining, and disposing of
appliances.’’ 58 FR 28707 (emphasis
added); see also 58 FR 28681
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(explaining that the rule required the
owner of the equipment to either
authorize the repair of substantial leaks
or develop the equipment retirement/
retrofit plan within 30 days of
discovering leak above the standard and
that the owner has the legal obligation
to ensure that repairs are made to
equipment where the leak rate exceeds
the standard).
Some comments on the proposed rule
stated that section 608(c) cannot be used
to require that an equipment owner
undertake repairs. EPA disagrees with
this comment. As explained above,
owners are within the scope of ‘‘person’’
as defined in CAA section 302(e) and
subpart F. An owner’s failure to
undertake repairs of leaky appliances or
IPR could lead directly to a violation of
the venting prohibition. As one
example, if in the course of a normal
maintenance check, a technician
discovers that the appliance is releasing
refrigerant above the threshold leak rate
but the owner does not authorize the
repairs as required by the rules, and
instead decides to add refrigerant and
continue operating the equipment, the
owner would be participating in a
knowing release.
Many commenters also disagreed with
EPA’s interpretation of the venting
prohibition, as articulated in the
proposed rule that ‘‘when a person adds
refrigerant to an appliance that he or she
knows is leaking, without repairing the
appliance consistent with the leak
repair requirements, he or she also
violates the venting prohibition.’’ One
commenter stated that this could
prohibit technicians from filling any
leaking appliance. Another commenter
noted that that it appears to cover failed
repairs and verification tests during the
repair period allowed by § 82.156(i)(9)
and § 82.157(e). Commenters requested
that EPA clarify that leaks that occur
within an applicable repair window or
retrofit/retirement schedule, even
though the facility may be aware of the
leak, do not violate the venting
prohibition, where the leak repair
procedures prescribed in subpart F are
followed. To clarify EPA’s statement in
the proposed rule and to respond to
these comments, EPA’s position is that
while the addition of refrigerant to an
appliance known to be leaking above
the threshold rate is a knowing release,
that release does not violate the venting
prohibition so long as the applicable
practices referenced in § 82.154(a)(2), as
revised, are complied with, including
the leak repair requirements, as
applicable.
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4. Addressing Concerns About Global
Warming Is Not Lawful Under Title VI
of the CAA
Multiple commenters stated that EPA
cannot use Title VI to control substances
based on their GWPs. These
commenters referred to section 602(e),
which states that EPA’s required
publication of the GWP of a class I or
class II substance ‘‘shall not be
construed to be the basis of any
additional regulation under this
chapter.’’ EPA responds that section
602(e) relates to the GWPs of ODS, and
says nothing regarding the GWPs of
substitutes. In any event, EPA is not
relying on section 602 as authority for
the action being taken in this
rulemaking. Rather, EPA is relying on
section 608 for the substantive
requirements contained in this rule.
Section 608(c) prohibits the knowing
venting or release of a substitute
refrigerant unless the Administrator
determines that such venting, release, or
disposal does not pose a threat to the
environment. While it is true that EPA
anticipates a significant GHG emissions
reduction as a result of this rule, EPA is
extending the subpart F regulations to
all substitute refrigerants that are not
exempt from the venting prohibition
irrespective of their GWPs. The GWPs of
the non-exempt substitutes addressed in
this rulemaking range from 4 to over
14,000.
One commenter stated that the
legislative history demonstrates that
Congress considered and rejected
regulating GHGs under Title VI of the
CAA. Congress does not intend sub
silento to enact statutory language that
it has earlier discarded. The commenter
also noted that Congress rejected the
Senate version known as ‘‘The
Stratospheric Ozone and Climate
Protection Act.’’ That version of the act
sought to reduce methane emissions in
the U.S. and other countries. The
removal of those provisions signifies, in
the commenter’s opinion, that Congress
did not intend for Title VI to address
substances that were not ozone
depleting, even if they have high GWPs.
EPA responds that while Congress
chose not to include certain potential
measures regarding regulation of GHGs
unrelated to ODS, Congress nonetheless
included multiple provisions regarding
ODS substitutes. The legislative history
of section 608(c) indicates that Congress
specifically recognized that substitutes
could pose a threat to the environment
because they could include greenhouse
gases. In discussing the venting
prohibition, as it applies to substitute
refrigerants, the statement of the Senate
Managers included the following:
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Effective 5 years after enactment, the
prohibition on venting or release shall also
apply to all substances that are used as
refrigerants as substitutes for class I or class
II refrigerants. By its terms, this provision
applies to substances that are not listed as
class I or class II substances. This is an
important provision because many of the
substitutes being developed do not have
ozone depleting properties but they are
‘greenhouse gases’ and have radiative
properties that are expected to exacerbate the
problem of global climate change. The
prohibition shall apply to all such substitute
substances except where the Administrator
determines that the venting, release or
disposal of a particular substitute substance
does not pose a threat to the environment.
The Administrator shall consider long term
threats, such as global warming, as well as
acute threats. The fact that a particular
substance has been identified by the
Administrator as a ‘safe substitute’ for
purposes of section 612 does not affect the
requirement for a separate determination
under this section. The purposes of section
612 and of this section are different and
substances approved under section 612 will
not automatically qualify for exclusion from
the prohibition on venting that is included in
this section.16
It is therefore clear that Congress
understood that substitute refrigerants
could be greenhouse gases, specifically
sought to apply the venting prohibition
to such gases, and specifically
contemplated that climate risks would
be considered in carrying out the
venting prohibition. The removal of a
provision related to methane within
Title VI does not indicate that Congress
did not intend to address greenhouse
gases in the venting prohibition.
One commenter stated that EPA has
not undertaken an endangerment
finding to support regulation of HFCs
from IPR as a greenhouse gas which can
be regulated under the CAA. EPA
responds that under section 608(c), the
venting prohibition applies to
substitutes unless EPA exempts them.
EPA is not required to take any
affirmative action, let alone an
endangerment finding, for the venting
prohibition to apply.
One commenter stated that the
purpose of Title VI is to implement the
Montreal Protocol, whose sole goal is to
protect the stratospheric ozone layer
from ODS. EPA responds that while
certain sections of Title VI do in fact
implement the Montreal Protocol,
several sections of Title VI call on EPA
to take measures that are not required by
the Montreal Protocol but are
complementary to the ODS phaseout.
These sections include, in addition to
16 Statement of Senate Managers, S. 1630, The
Clean Air Act Amendments of 1990, reprinted in 1
A Legislative History of the Clean Air Act
Amendments of 1990, at 929 (1993).
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section 608, sections 609 (servicing of
motor vehicle air conditioners), 610
(nonessential products), 611 (labeling),
and 612 (safe alternatives policy).
Section 608 clearly provides EPA
authority to regulate the venting,
release, and disposal of substitute
refrigerants.
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5. EPA’s Proposal Would Increase Risks
to Human Health and Violate Section
612
One commenter stated that the
proposed rule would drive owners and
operators of IPR from HFCs to exempt
substitutes in order to remove
themselves from the regulatory
requirements of subpart F. The
commenter stated that some of these
exempt substitutes are not safer for
human health. HFCs are non-ozone
depleting, non-flammable, and nontoxic whereas ammonia, chlorine, and
hydrocarbons are either toxic or
flammable. By encouraging the use of
these non-exempt but riskier substitutes,
the commenter states that EPA is
violating section 612(a) of the CAA.
EPA responds that the commenter is
quoting the policy statement that
appears in section 612(a). The Agency is
not acting under section 612. Rather,
EPA is acting under section 608. This
action under section 608 is consistent
with decisions made under section 612
and does not alter those decisions.
Specifically, it does not preclude use of
any substitute listed as acceptable or
acceptable subject to use restrictions
under section 612(c) for the specified
end-use. Under section 612(c), EPA
compares substitutes not only to ODS
but also to other available substitutes.
When reviewing substitute refrigerants,
EPA considers a variety of risks,
including toxicity and flammability. In
some instances, EPA lists substitutes as
acceptable subject to use conditions that
mitigate such risk. EPA does not dictate
that a particular user choose a specific
substitute from among those listed as
acceptable for that end-use. Whether an
owner or operator of an IPR facility
chooses to transition to an exempt
substitute is a decision that must be
made weighing the advantages and
disadvantages of the specific refrigerant.
6. Section 301 and 114 Do Not Grant
EPA Authority To Regulate Substitutes
Two commenters stated that section
301 grants EPA general rulemaking
authority but does not authorize the
Agency to act where a specific statutory
provision already has addressed an
issue. They further stated that section
608(a) does address the issue of whether
the refrigerant management regulations
apply to substitutes and therefore EPA
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cannot use section 301 to create that
authority.
As discussed above, nothing in Title
VI says what refrigerant management
requirements should apply to
substitutes: Therefore, this is not a
situation where a specific statutory
provision has already addressed the
issue. EPA is issuing regulations to
interpret, explain, and enforce the
venting prohibition in section 608(c)(2)
with regard to non-exempt substitutes.
EPA is not deriving substantive
authority from section 301. Rather, EPA
is relying on section 608 for its
substantive authority and is looking to
section 301 as supplemental authority to
issue regulations to carry out its
functions under section 608. Similarly,
EPA is looking to section 114 not for the
substantive refrigerant management
requirements being finalized today but
rather as authority to require
recordkeeping and reporting in carrying
out the venting prohibition for nonexempt substitutes.
IV. The Revisions Finalized in This
Rule
A. Revisions to the Definitions in
§ 82.152
EPA proposed to update and clarify
many of the definitions in subpart F.
EPA also proposed to add new
definitions and remove definitions that
solely restated the required practice. In
general, these revisions are to improve
readability, increase consistency with
how the term is used in the regulatory
text, and specifically incorporate
substitute refrigerants as appropriate.
EPA received comment on the
proposed revisions to definitions of
refrigerant and appliance, as well as
terms specifically applicable to the leak
repair portion of the regulations. EPA
also received requests to define
additional terms. Those comments, and
changes from the proposed definitions
that are being made in this final rule, are
discussed later in this section with
those terms. EPA is finalizing as
proposed the other revisions to
definitions in this section that were
addressed in the notice of proposed
rulemaking and where we did not
receive comments. Other revisions
elicited only supporting comments,
which are briefly noted in the
descriptions of the revisions.
Appliance
EPA proposed to define appliance as
any device which contains and uses a
class I or class II substance or substitute
as a refrigerant and which is used for
household or commercial purposes,
including any air conditioner, motor
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vehicle air conditioner, refrigerator,
chiller, or freezer. EPA is finalizing
three revisions to the definition of
appliance. First, EPA is extending the
subpart F regulatory definition to apply
to substitute refrigerants. Second, EPA
is adding ‘‘motor vehicle air
conditioner’’ to the list of example
appliances. Third, EPA is adding a
sentence stating that each independent
circuit on a system with multiple
circuits is considered a separate
appliance.
The prior definitions in subpart F are
written to separate ozone-depleting
substances from non-ozone depleting
substitutes. EPA’s prior regulations
defined an appliance as a device which
contains and uses a refrigerant. As
relevant here, section 601 of the CAA
defines an appliance as a ‘‘device which
contains and uses a class I or class II
substance as a refrigerant.’’ Class I and
class II substances are defined as
substances listed under sections 602(a)
or (b), respectively. Section 601 of the
CAA does not define refrigerant but
EPA’s regulations at § 82.152 as they
existed before this rulemaking defined
refrigerant as solely class I or class II
ozone-depleting substances, or mixtures
containing a class I or class II ODS.
Defining these terms in this manner
was appropriate before section 608(c)(2)
took effect on November 15, 1995.
Under section 608(c)(2), the venting
prohibition applies to substitutes for
ODS refrigerants and, accordingly, it
states that ‘‘[f]or purposes of this
paragraph’’ appliance includes any
‘‘device which contains and uses as a
refrigerant a substitute substance and
which is used for household or
commercial purposes.’’ However, EPA
had not updated the definition of
appliance in subpart F to reflect section
608(c)(2). Because EPA regulations, as
they existed before this rulemaking, had
defined an appliance as a device that
contains and uses a refrigerant, and
refrigerant in a way that does not
include substitutes, substitutes were
excluded from the regulatory definition
of appliance.
In this action, EPA is revising the
definition of appliance so that it
encompasses the definition of the term
in both sections 601 and 608 of the
CAA. EPA is defining appliance as any
device which contains and uses a class
I or class II substance or substitute as a
refrigerant and which is used for
household or commercial purposes.
This revision makes the regulatory
definition consistent with both sections
601 and 608 of the CAA, improves
internal consistency of the regulations,
and increases clarity for the regulated
community.
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One commenter stated that EPA
should not add ‘‘substitutes’’ to the
definition of appliance because CAA
section 601(1) already defines appliance
and ‘‘substitutes’’ is not included. EPA
responds that while the definition of
appliance in section 601(1) does not
contain ‘‘substitutes,’’ section 608(c)(2)
does extend the term appliance to
systems containing substitutes for
purposes of that paragraph. It is
reasonable to update the regulatory
definition so that there is a consistent
definition of appliance throughout
subpart F. Further, because the
regulations in subpart F address the
venting prohibition under section
608(c)(2) for substitute refrigerants and
requirements to interpret, explain, and
enforce the de minimis exemption to
that prohibition, it is reasonable to
include ‘‘substitutes’’ in the regulatory
definition of appliance. In addition, this
rulemaking only changes the definition
of appliance as it appears in subpart F,
but the definition of the term in other
regulations under Title VI, such as in 40
CFR 82.3, remains unchanged.
EPA also proposed and is finalizing
the addition of ‘‘motor vehicle air
conditioner’’ to the list of example
appliances. Two commenters objected
to this proposal, stating that neither
definition of appliance in section 601 or
608 of the CAA specifically includes
motor vehicle air conditioners. One
commenter states that Congress
specifically considered but ultimately
decided against explicitly including
‘‘motor vehicles’’ within the definition
of appliance in section 601 of the CAA.
A plain reading of the Clean Air Act
would include motor vehicle air
conditioning under appliance. Section
601 of the CAA defines an appliance as
‘‘any device . . . which is used for
household or commercial purposes
including any air conditioner . . .’’
(emphasis added). In the 1993 Rule
establishing regulations under section
608 for the first time, the Agency stated
the following:
The Act defines ‘appliance’ as ‘any device
which contains and uses a class I or class II
substance as a refrigerant and which is used
for household or commercial purposes,
including any air conditioner, refrigerator,
chiller, or freezer.’ EPA interprets this
definition to include all air-conditioning and
refrigeration equipment except that designed
and used exclusively for military
applications. Thus, the term includes all the
sectors of air-conditioning and refrigeration
equipment described under Section III.A
above, including household refrigerators and
freezers (which may be used outside the
home), other refrigerated appliances,
residential and light commercial airconditioning, transport refrigeration, retail
food refrigeration, cold storage warehouses,
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commercial comfort air-conditioning, motor
vehicle air conditioners, comfort cooling in
vehicles not covered under section 609, and
industrial process refrigeration.’’ (58 FR
28669; May 14, 1993, emphasis added)
In that same final rule, EPA
established the definition of MVAC in
subpart F as ‘‘any appliance that is a
motor vehicle air conditioner as defined
in 40 CFR part 82, subpart B’’ (emphasis
added), and that definition has not since
been changed. The commenters
themselves state that procedures that are
not regulated under section 609, such as
the disposal of MVACs and the
purchase of refrigerant in some sized
containers, are covered by section 608.
Furthermore, they agree that the
prohibition against venting ODS and
substitute refrigerants in section 608 is
also already applicable to refrigerants
used in MVAC and MVAC-like
appliances. This necessarily implies
that appliance as used in section 608
includes ‘‘motor vehicle air
conditioners.’’ The inclusion of ‘‘motor
vehicle air conditioners’’ as an example
within appliance is a clarification, and
it reflects the way the term appliance
has been used throughout the history of
the program. Specific provisions in
subpart F that relate to activities that are
regulated for MVACs under section 609
refer, as appropriate, to the subpart B
regulations issued under section 609 of
the CAA.
Comments from the auto industry also
expressed concern that adding motor
vehicle air conditioners to the list of
examples in the definition of appliance
would affect EPA’s exemption from
servicing requirements for MVACs in
vehicles that have not yet left the
manufacturing facility. In the 1992 rule
establishing regulations under section
609, EPA stated that:
a motor vehicle air conditioner is not subject
to these regulations prior to the completion
of final assembly of the vehicle by the
original equipment manufacturer. While
repair or service work on air conditioners in
unfinished vehicles may well fit the
definition of ‘service for consideration,’ the
equipment and technician certification
requirements of these rules do not apply as
the motor vehicle air conditioner is not
subject to these rules prior to the completion
of the final assembly process by the vehicle’s
manufacturer. (57 FR 31246; July 14, 1992)
The addition of motor vehicle air
conditioners as an example within the
definition of appliance does not affect
current practices and EPA regulations as
they affect vehicle manufacturing. That
was not the intent of the proposed
change and is not a result of this final
action. As previously discussed, the
definition of motor vehicle air
conditioner in subpart F is ‘‘any
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appliance that is a motor vehicle air
conditioner as defined in 40 CFR part
82, subpart B’’ and the definitions
within subpart B, under section 609,
exclude vehicles that have not
completed manufacturing by the
original equipment manufacturer. EPA
provided the following explanation for
the exclusion of vehicles that have not
yet been fully manufactured from the
servicing requirements under section
609 in the 1992 final rule:
EPA believes the repair of newly
manufactured units is not likely to be a
common occurrence and when it does occur,
the manufacturing facilities clearly use
equipment to recover and recycle the
refrigerant so that it may be reintroduced
once the motor vehicle air conditioner is
repaired. The equipment is significantly
different from the kind of equipment covered
by EPA’s definition of approved equipment,
yet serves the purpose of such equipment
equally well. In addition, the technicians
performing this operation are typically
manufacturing employees, not service
technicians. For all these reasons, the Agency
believes it is not necessary at this time to
extend the requirements of this servicing
regulation into the assembly operation. . .
EPA wants to be clear that this exclusion is
limited to final assembly activities conducted
by the vehicle’s original manufacturer, and
does not include service or repair activities
conducted, for example, by a dealer. (57 FR
31245, July 14, 1992)
One commenter further stated that it
is not necessary to impose new
technician training and certification
requirements, or other regulatory
requirements, for the automobile
company and component supplier
employees and contractors engaged in
these activities. EPA agrees and
reiterates that because the venting
prohibition already applied to ODS and
substitutes, this final action will not
have any new effect on the automotive
manufacturing process or individuals
employed in the automotive and/or
MVAC manufacturing process prior to
the vehicle leaving the manufacturing
plant. EPA’s regulations under both
sections 608 and 609 are intended, and
will continue, to apply only to MVACs
that are fully manufactured.
A few commenters requested that EPA
clarify that for systems containing
multiple circuits, each independent
circuit is considered a separate
appliance for the purposes of subpart F.
This is the position that EPA has taken
in the Compliance Guidance for
Industrial Process Refrigeration Leak
Repair Regulations under Section 608 of
the Clean Air Act from October 1995
and the commenters believe that making
such a statement in the regulations will
be clearer to the regulated community.
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EPA agrees and is adding a sentence
clarifying this point to the definition.
Many commenters from the
supermarket industry believe that the
Agency’s interpretation of the term
appliance is too broad. In these
commenters’ view, appliances are
display cases or unit coolers and not the
broader system of piping, compressors,
and condensing units to which those are
attached. One commenter suggested that
EPA create a definition for the term
system to indicate a combination of
various pieces of equipment and
appliances that are professionally and
specifically designed and erected for a
particular application. Another
commenter suggested that EPA define
the refrigerant circuit as separate from
the appliance. These commenters are
especially concerned about a definition
of appliance that includes all coolers,
display cases, components, and piping
in light of EPA’s proposal to require that
an appliance be retired if it exceeds the
proposed two-year leak limit.
EPA responds that the Agency
interprets an appliance as a fully
assembled device that can function for
its intended purpose. Components, on
the other hand, are all the parts of the
appliance that make up the refrigerant
circuit, as described later in this section.
As EPA described in the final rule
allocating HCFCs for 2010–2014,
‘‘appliances are separate from
components, which are the individual
parts of an appliance, such as a
condensing unit or line set, that by
themselves cannot function to provide a
cooling effect’’ (74 FR 66439; December
15, 2009). EPA recognizes that some
would prefer that some components be
considered appliances. For example,
some members in the industry consider
a condensing unit in a residential split
system to be an appliance. However,
EPA does not believe it is practical or
clear for some components to also be
considered appliances in the regulatory
definitions. The concepts of full charge
or leak rate do not make sense in the
context of only a component. Finally,
EPA notes that much of these
commenters’ concerns about the scope
of the term appliance was in response
to EPA’s proposal that chronically
leaking appliances be retired. As
discussed in Section IV.F.12, EPA is not
finalizing the proposed requirement for
automatic retirement of chronically
leaking appliances.
Apprentice
As proposed, EPA is amending the
definition of apprentice to replace the
‘‘Bureau of Apprenticeship and
Training’’ with the ‘‘Office of
Apprenticeship’’ to match the current
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name of the office and to make minor
edits to improve clarity and readability.
Batch
EPA proposed a requirement that each
batch of reclaimed refrigerant be tested.
EPA did not propose to define ‘‘batch’’
but is doing so in this final rule based
on requests by commenters to clarify the
term. EPA agrees with the comment that
adding a definition of batch will clarify
this requirement, and is defining the
term based on language provided by
multiple commenters. Therefore, EPA is
defining batch to mean a single bulk
cylinder of refrigerant after all
reclamation has been completed prior to
packaging or shipping to the market.
Certified Refrigerant Recovery or
Recycling Equipment
As proposed, EPA is removing the
defined term certified refrigerant
recovery or recycling equipment which
was merely a reference to the sections
of the Code of Federal Regulations that
discuss the certification program. This
term was also used inconsistently
throughout subpart F as ‘‘recovery and
recycling equipment,’’ ‘‘recovery or
recycling equipment,’’ ‘‘recycling and
recovery equipment,’’ and ‘‘recycling or
recovery equipment.’’ The regulations at
§ 82.36 make a distinction, in the
context of MVAC servicing, between
equipment that only recovers refrigerant
and equipment that both recovers and
recycles refrigerant. The regulations in
subpart F generally do not make a
distinction. The standards in
appendices B1 and B2 refer to recovery
and/or recycling equipment while the
standard in appendix C for small
appliances refers to recovery equipment
only. For consistency, in the revised
provisions, EPA is using ‘‘recovery and/
or recycling equipment’’ throughout,
except for when referring only to small
appliances.
Class I and Class II
EPA is finalizing as proposed
regulatory definitions for class I and
class II ozone-depleting substances to
assist the reader. These terms are
currently defined in section 601 of the
CAA and in 40 CFR part 82, subpart A.
EPA is finalizing the addition of a
definition of class I as an ozonedepleting substance that is listed in 40
CFR part 82, subpart A, appendix A.
Similarly, EPA is finalizing the addition
of a definition of class II as an ozonedepleting substance that is listed in 40
CFR part 82, subpart A, appendix B.
EPA also notes that the regulatory text
uses class I substance, class I ODS, and
class I refrigerant interchangeably (and
similarly uses class II substance, class II
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ODS, and class II refrigerant
interchangeably) and all are intended to
have the same meaning for the purpose
of subpart F.
Comfort Cooling
EPA is finalizing the addition of a
definition for comfort cooling. The leak
repair provisions divide refrigeration
and air-conditioning equipment into
four categories: Comfort cooling,
commercial refrigeration, industrial
process refrigeration, and other. EPA’s
prior regulations defined commercial
refrigeration and industrial process
refrigeration but not comfort cooling.
For purposes of the leak repair
requirements, EPA proposed to define
comfort cooling as the air-conditioning
appliances used to provide cooling in
order to control heat and/or humidity in
facilities including but not limited to
office buildings and light commercial
buildings. EPA further proposed to
include language explaining that
comfort cooling appliances include
building chillers and roof-top selfcontained units, and may be used for
the comfort of occupants or for climate
control to protect equipment within a
facility, such as but not limited to
computer rooms. EPA sought comments
on the applicability of the proposed
definition of comfort cooling to airconditioning equipment that is typically
used to provide cooling and or humidity
control in such environments.
Commenters suggested that EPA
remove the reference to equipment and
computer rooms as this is beyond the
scope of comfort cooling. One
commenter suggested that comfort
cooling only include computer rooms
set to above 68 degrees F to align the
definition with CARB–32. That
commenter also suggested that
appliances used to cool computer rooms
would fall under the category of ‘‘other
appliances.’’ Another commenter
believes that such appliances are
currently considered as IPR. EPA
responds that the intent was to apply
the term comfort cooling only to spaces
occupied by humans. EPA has made
edits to better reflect this understanding
in the final definition and is therefore
not including in the final definition the
last sentence from the proposed
definition (which read ‘‘[t]hey may be
used for the comfort of occupants or for
climate control to protect equipment
within a facility, including but not
limited to computer rooms.’’).
EPA notes here that comfort cooling,
with respect to the leak repair
provisions in this subpart, does not
include MVACs or MVAC-like
appliances.
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Commercial Refrigeration
As proposed, EPA is finalizing the
amendment to the definition of
commercial refrigeration that removed
the sentence stating that this equipment
typically contains a charge size over 75
pounds. While accurate, this sentence
has caused confusion as to whether or
not the leak repair requirements are
applicable to such appliances with a full
charge between 50 pounds, as stated in
the leak repair required practices, and
75 pounds. The leak repair requirements
do apply because the threshold is a
refrigerant charge of 50 pounds or
greater. EPA is removing this sentence
to avoid this confusion. EPA received
comments in support of this revision.
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Critical Component/Component
As proposed, EPA is removing the
defined term critical component and
adding the term component. The term
critical component was only used in the
context of an extension for the repair of
IPR when critical components could not
be delivered within the necessary time.
EPA is amending the definition so that
it is not limited to IPR, but also includes
comfort cooling and commercial
refrigeration appliances. As discussed in
Section IV.F of this notice, EPA is
applying the extensions for leak repairs
to all types of appliances. The
unavailability of a component is not
unique to IPR and EPA is granting all
appliances the same flexibility to
request additional time. This revision to
the regulatory definitions supports that
flexibility.
EPA proposed to define component as
‘‘a part of the refrigerant loop within an
appliance including, but not limited to,
compressors, condensers, evaporators,
receivers, and all of its connections and
subassemblies.’’ Component is intended
to be broader than critical component.
EPA considers components to include
all the parts of the appliance that make
up the refrigerant circuit such as the
compressor, heat exchangers (condenser
and evaporator), and valves (e.g., heat
recovery, expansion, charging). Other
components may include receivers,
manifolds, filter driers, and refrigerant
piping. EPA is finalizing this definition
substantially as proposed, although it is
replacing the word ‘‘loop’’ with
‘‘circuit,’’ as refrigerant circuit is a
defined term in the regulations.
Custom-Built
As proposed, EPA is amending the
definition of custom-built to remove a
citation to a section of the regulation
that has moved.
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Disposal
EPA proposed to amend the definition
of disposal to clarify that the disposal
process includes the destruction of an
appliance that releases or would release
refrigerant to the environment. This
proposed revision is intended to cover
activities such as vandalism or the
cutting of refrigerant lines, whether to
steal metal or to vent the refrigerant or
both. EPA also proposed to clarify that
the disassembly of an appliance for
recycling, as well as reuse, is part of the
disposal process.
One commenter stated that the
regulatory definition of disposal is
inconsistent with EPA’s Sustainable
Materials Management policy and with
the RCRA definition of disposal at 40
CFR 260.10, which leads to regulatory
confusion. The commenter seeks to
clarify that the recycling of appliances
or components is separate from
disposal. The commenter believes there
should be four definitions regarding
recycling and disposal: (1) Recycle
refrigerant; (2) dispose of refrigerant; (3)
recycle an appliance; and (4) dispose of
an appliance. The commenter finds that
the proposed revision to the definition
confuses the distinction between
recycling and disposal. The commenter
also finds that the word ‘‘destruction’’ is
too broad if EPA is trying to address
vandalism, line-cutting, or theft and is
concerned that the term equates
recycling with such unlawful activities.
EPA responds that the Agency
addresses the recycling and disposal (or
reclamation) of refrigerant elsewhere in
subpart F. The safe disposal provisions
at § 82.155 relate to the disposal of
appliances. The Clean Air Act in 608(a)
refers to the ‘‘service, repair, and
disposal of appliances’’ and 608(c)
refers to the ‘‘maintaining, servicing,
repairing, or disposing of an appliance’’
(emphases added). The manner in
which the appliance is disposed of,
whether by recycling, landfilling, reuse
of component parts, or another method
is not addressed by the CAA. For the
purposes of section 608, what is
relevant is that an action is taken on an
appliance at the end of its useful life
that releases or would release refrigerant
if the proper precautions are not taken.
EPA agrees it is appropriate to specify
what is included in disposal for clarity
but does not agree that the term must
have the same meaning in section 608
of the CAA as under RCRA or the
Sustainable Materials Management
policy. The commenter does not make
clear how the Agency’s Sustainable
Materials Management policy is in
conflict with the requirement in subpart
F to recover, or verify the prior recovery,
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of refrigerant in discarded appliances.
EPA is finalizing its proposal to include
recycling for scrap as one of the
methods by which an appliance may be
disposed.
Furthermore, EPA’s intent is to
address the various actions taken upon
an existing and operational system that
will effectively end its useful life and
potentially release refrigerant. Both
recycling and vandalizing a fully
charged appliance would have that
effect, though EPA recognizes the
distinctions between those two actions.
This revision is also consistent with a
recent court decision-which found that
cutting a functioning condenser unit
and releasing refrigerant into the
environment constituted disposal of an
appliance within the meaning of CAA
section 608 and its implementing
regulations, even if the underlying
intent was to steal and sell the metal
piping. United States v. Harrold, No.
2:15–mj–605 (S.D. Ohio, Oct. 28, 2015)
(order concluding that the complaint
sufficiently charged a violation of the
Act and that sufficient evidence was
presented to establish probable cause
that defendant violated the Act).17 See
also United States v. Morrissette, 579 F.
App’x 916, 919 (11th Cir. 2014) (stating
that defendant who stole metal coils
from commercial air conditioning units
had violated the CAA regardless of the
underlying intent to steal copper). EPA
is finalizing the definition of disposal
substantially as proposed. In response to
the comment, EPA is replacing the word
‘‘destruction’’ with ‘‘vandalism’’ to more
specifically refer to actions such as line
cutting and metal theft. The vandalism
would have to be of such a nature that
it would release the refrigerant. EPA is
also separating ‘‘[t]he recycling of any
appliance for scrap’’ from ‘‘[t]he
disassembly of any appliance for reuse
of its component parts.’’ Both are
considered disposal.
Follow-Up Verification Test
EPA is amending the definition of
follow-up verification test to remove
duplicative text that was also covered in
§ 82.156(i). The revised definition
describes what the test is and how it is
conducted, not the regulatory
requirements of the test. The revised
regulatory requirements are found in
§ 82.157(e). EPA is not specifying one
test that would satisfy what constitutes
a follow-up verification test, but is
providing an illustrative list of tests that
would qualify. EPA does not intend for
this list to be all-inclusive, but rather to
17 A copy of this opinion and other documents
related to this case are available in the docket for
this rulemaking.
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provide examples of known
methodologies of performing leak repair
verification tests.
One commenter suggested that EPA
modify the name of this test to followup leak repair verification test. The
commenter has found that over 40
percent of technicians who do not work
on IPR, where these tests were
previously required, were confused
about the distinction between the initial
and follow-up verification tests. The
technicians indicated to the commenter
that such a name change would make it
clearer that the tests are about the
effectiveness of the repair. EPA
disagrees that changing the name of the
test will improve technician’s abilities
to conduct these tests or reduce
refrigerant emissions. It is
understandable that technicians that do
not work on IPR equipment and are not
trained in the procedures of subpart F
that had previously only applied to IPR
would not be aware of the requirements.
EPA is concerned that changing the
name of the test would confuse those
who already know of the requirement.
EPA is therefore finalizing the definition
of follow-up verification test as
proposed.
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Full Charge and Seasonal Variance
EPA is amending the definition of full
charge to account for seasonal variances
and to make minor edits for readability.
Owners or operators of commercial
refrigeration appliances and IPR have
previously expressed concerns that the
full charge may not be accurately
determined due to seasonal variances
that may alter the amount of refrigerant
in an appliance. Seasonal variances in
ambient temperature and pressure have
the effect of forcing refrigerant to
different appliance components (for
example, from an appliance’s receiver to
the condenser).
EPA is allowing owners or operators
to account for seasonal variances by
measuring the actual amount of
refrigerant added to or evacuated from
the appliance. EPA is defining full
charge as the amount of refrigerant
required for normal operating
characteristics and conditions of the
appliance as determined by using one or
a combination of the following four
methods:
(1) Use of the equipment
manufacturer’s determination of the full
charge;
(2) Use of appropriate calculations
based on component sizes, density of
refrigerant, volume of piping, and other
relevant considerations;
(3) Use of actual measurements of the
amount of refrigerant added to or
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evacuated from the appliance, including
for seasonal variances; and/or
(4) Use of an established range based
on the best available data regarding the
normal operating characteristics and
conditions for the appliance, where the
midpoint of the range will serve as the
full charge.
To further explain the definition of
full charge, EPA is creating a defined
term for seasonal variance. This term
means the removal of refrigerant from
an appliance due to a change in ambient
conditions caused by a change in
season, followed by the subsequent
addition of an amount that is less than
or equal to the amount of refrigerant
removed in the prior change in season,
where both the removal and addition of
refrigerant occurs within one
consecutive 12-month period. A
complete discussion of allowing for
seasonal variances when calculating
appliance leak rates is found in Section
IV.F of this preamble.
EPA received several comments on
the proposed definition of seasonal
variance. Two commenters
recommended that EPA use the removal
of refrigerant as the first step and the
addition of refrigerant as the second
step. While EPA proposed the opposite
framing, you can measure the amount
removed to be able to determine the
amount that can be added in the next
season without triggering a leak rate
calculation. EPA has adjusted the
definition and the narrative in the
preamble accordingly.
Four commenters suggested that the
amount added and removed does not
always have to be equal, as was
proposed. EPA agrees that as long as the
amount added is less than or equal to
the amount removed in the prior season,
the addition will be considered a
seasonal variance.
One commenter requested that EPA
clarify whether the added refrigerant
amount is to be included in the full
charge amount. The commenter is
concerned that not reflecting the
seasonal variance could affect what is
considered normal operating
characteristics and conditions, which
would in turn affect when verification
tests can be conducted. Another
commenter proposed that the maximum
charge be used at all times when
calculating the leak rate, regardless of
what is actually in the appliance at the
time of repair.
Given the concerns raised by the
commenter about including seasonal
variances in the appliance’s full charge
to prevent problems with compliance
with normal operating characteristics
and conditions, the full charge must be
adjusted to account for the amount of
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refrigerant removed or added for a
seasonal variance if the full charge was
calculated using any method other than
method four, since that method
inherently includes a range. To be clear,
verification tests should be conducted
regardless of whether the appliance
contains extra refrigerant to account for
a seasonal variance. This could result in
two ‘‘full charges,’’ one for each season.
EPA does not agree that it would be
appropriate to use the maximum charge
or the higher of the two full charge
calculations because some seasonal
variances are large enough that
adjusting the full charge would make
significant difference in the leaks that
would exceed the applicable leak rate.
Since this is an added flexibility,
requiring slightly more recordkeeping is
warranted.
One commenter indicated that
refrigerant charge should never be
added or removed throughout the year.
While this may be true for some types
of equipment, there are legitimate
situations where such additions or
removals are appropriate, typically in
larger commercial refrigeration and
industrial process refrigeration
appliances. For example, one
commenter cited the instance of a
seafood packer who may need to add
refrigerant during crab season when the
refrigeration or freezing load spikes.
Finally, the Agency is allowing an
owner or operator to choose a
combination of methods to determine
full charge. There are instances where
multiple methods may be necessary to
accurately determine the full charge.
Further EPA is providing flexibility by
not requiring that owners or operators
commit to the same method for the life
of the appliance. EPA is requiring in
this final rule that owners or operators
maintain a written record of the full
charge, the method(s) used to determine
the full charge, and any changes to that
amount.
High-Pressure Appliance
EPA is amending the definition of
high-pressure appliance as proposed to
update the list of example refrigerants
with the most commonly used
refrigerants today. Because revisions to
appliance and refrigerant carry over into
this term as well, under the revisions
finalized in this rule, high-pressure
appliances include those that use ODS
and non-ODS substitute refrigerants.
Industrial Process Refrigeration
EPA is amending the definition of
industrial process refrigeration as
proposed to make minor clarifications
for readability and to remove a citation
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to a section of the regulation that has
moved.
Industrial Process Shutdown
EPA is amending the definition of
industrial process shutdown as
proposed to remove a citation to a
section of the regulation that has moved.
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Initial Verification Test
EPA is amending the definition of
initial verification test to remove
duplicative text that is also covered in
the required practices section of the
regulation. The revised definition
describes in general terms what the test
is, not what the requirements of the test
are. The purpose of this test is to verify
that a leak has been repaired prior to
adding refrigerant back into the system.
The requirements for an initial leak
repair verification test are described in
Section IV.F.8 of this notice and in
§ 82.157(e)(1) of the revised regulation.
Leak Inspection
EPA is creating a new defined term
leak inspection. EPA proposed to define
leak inspection as the examination of
appliances using a calibrated leak
detection device, a bubble test, or visual
inspection for oil residue in order to
determine the presence and location of
refrigerant leaks.
Some commenters recommended
additional leak detection methods
including: Standing pressure/vacuum
decay tests, ultrasonic tests, periodic
evacuations, gas-imaging cameras, sight
glass checks, viewing receiver levels,
pressure checks, charging charts, and
the sub-cooling method (for expansion
systems).
In general, leak detection methods fall
into two categories: Ones that indicate
that an appliance is leaking; and ones
that can identify the location of a leak.
EPA stated in the proposal that the
proposed definition covers the
techniques currently used to detect the
location of leaks, not activities that
would assist only in determining
whether a system is leaking generally
without providing information that
would allow detection of the location of
the leak. One commenter stated that
limiting leak inspections in such a
manner increases the costs of
conducting leak inspections.
EPA responds that the purpose of a
leak inspection is to determine the
location of a leak, not to determine
whether an appliance is leaking. As
discussed in Section IV.F.4 of this
notice, EPA is modifying the leak
inspection requirement so that it is only
required on appliances that have
exceeded the applicable leak rate. To
repair a leak, the technician must be
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able to locate it. Therefore, inspection
methods that only indicate that the
appliance is releasing refrigerant do not
provide the necessary information for a
technician to repair leaks. Further leak
inspections on the repaired system may
benefit from using a combination of
methods to determine whether the
system continues to leak refrigerant, and
if so, where.
Commenters also recommended that
EPA remove some of the proposed
inspection methods. Multiple
commenters recommended that EPA not
include a visual inspection for oil
residue, as that is not a reliable
indicator of a refrigerant leak. Similarly,
some commenters noted that the bubble
test should be used in conjunction with
another leak detection method due to its
low sensitivity or potential unreliability
when performed outdoors. EPA agrees
that a visual inspection for oil residue
is not dispositive and has removed that
method from the list of leak inspection
methods included in the definition as
finalized. EPA is including bubble tests
in that list because it may be
appropriate in some circumstances. EPA
is also strengthening the leak inspection
by requiring under § 82.157(g)(2) that it
be performed by a certified technician,
while providing discretion for the
technician to determine which methods
are appropriate.
Some commenters also recommended
that EPA remove the word ‘‘calibrated’’
because some electronic leak detectors
are self-calibrating while others do not
require calibration. Instead, these
commenters suggested that EPA require
that the devices be operated and
maintained according to manufacturer
guidelines. Another commenter
recommended that EPA maintain the
requirement that leak detection devices
be calibrated. Given the variability of
equipment, EPA agrees with the
comments suggesting that it is
preferable to follow the manufacturer
guidelines. Thus, in this final definition
EPA is replacing ‘‘calibrated leak
detection device’’ with ‘‘leak detection
device operated and maintained
according to manufacturer guidelines’’
based on public comment.
In this final rule, EPA is providing a
non-exhaustive list of methods for leak
inspections, and clarifying that
techniques that only determine whether
the appliance is leaking must be used in
combination with another method that
can identify the location of the leak. In
general, commenters encouraged EPA to
allow for or require multiple methods
due to the limitations of individual
techniques in different circumstances.
This approach is consistent with those
comments.
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Leak Rate
EPA proposed, and is now finalizing,
one substantive change to the definition
of leak rate to change the calculation
performed under what is called Method
2 under the prior rules. The first step of
that method has been to take the sum of
the quantity of refrigerant added to the
appliance over the previous 365-day
period (or over the period that has
passed since leaks in the appliance were
last repaired, if that period is less than
one year). Instead of the cut-off being
since the last repair (if less than 365
days), EPA is amending Step 1 to cover
the period of time since the last
successful follow-up verification test
showing that all identified leaks were
successfully repaired (if less than 365
days have passed since the last
refrigerant addition). The goal of this
change is to improve the clarity of the
requirements. Under the prior
definition, it was unclear if the repair
had to be successful in order to be
considered in the leak rate calculation.
These revisions clarify that all identified
leaks must be verified as having been
successfully repaired.
EPA is also renaming the two
methods from Method 1 and Method 2
to ‘‘Annualizing Method’’ and ‘‘Rolling
Average Method’’ to improve
readability. EPA is also finalizing the
proposed change to clarify that while
the same leak rate calculation must be
used for all appliances at the same
facility, this only refers to the
appliances subject to the leak repair
provisions (i.e., appliances normally
containing 50 or more pounds of
refrigerant).
EPA received three comments on this
proposed definition. One commenter
recommended that EPA remove the
Rolling Average Method for simplicity
and change the Annualizing Method
such that the calculation is based on the
time since the last successful follow-up
verification test instead of the last
refrigerant addition. The commenter
further recommended changes to the
Rolling Average Method, if EPA keeps it
in the regulation, to better express the
amount of refrigerant that would be lost
if that leak continued for a full year.
EPA responds that while reducing the
number of leak rate calculation methods
could simplify the regulations,
numerous appliance owners and
operators have used the Rolling Average
method for years and they continue to
seek flexibility. EPA does not see an
environmental benefit in reducing this
flexibility. On the suggestions to change
the Annualizing and Rolling Average
Methods, EPA is not adopting the
suggestions. Broadly speaking, EPA
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interprets the comment to indicate that
the Rolling Average Method should be
more like the Annualizing Method and
vice versa such that they are effectively
identical. This seems unnecessary and
confusing, and limits flexibility. Both
methods have strengths that would be
undercut by the suggested changes.
The strength of the Annualizing
Method is that it is future-oriented. It
allows an owner or operator to ‘‘close
out’’ each leak event so long as the
requirements are followed and does not
lump past leak events with the current
leak event. It considers the amount of
time since the last refrigerant addition
and then scales that up to provide a leak
rate that projects the amount lost over
a whole year if not fixed. As a result,
this formula will yield a higher leak rate
for smaller leaks if the amount of time
since the last repair was shorter. This
can have significant environmental
benefits by requiring more thorough
leak inspections and verified repairs
sooner. The commenter’s suggested
change would make this method too
similar to the Rolling Average Method
for minimal, if any, benefit and could
potentially increase the amount of time
included in each leak rate calculation.
Stretching out the period of time
covered could result in lower leak rates
depending on the situation.
The Rolling Average Method also has
its strengths. It accounts for all
refrigerant additions over the past 365
days or since the last successful followup verification test showing that all
identified leaks were successfully
repaired (if less than 365 days). If an
owner or operator verifies all identified
leaks are repaired, this method would
also allow an owner or operator to
‘‘close out’’ a leak event. If there is no
follow-up verification test showing that
all identified leaks were successfully
repaired within the last year, the leak
rate would be based completely on
actual leaks in the past year. This
retrospective approach measures actual
performance and if leaks are identified
and fixed quickly, an appliance may
never reach the applicable leak rate.
Two other commenters questioned the
rationale for the change given the need
to update tracking software and provide
staff training. EPA explained its
rationale in the proposed rule and
earlier in this notice. Specifically, the
change is needed to provide clarity that
repairs must be successful and verified
in order to be considered in the
calculation and to improve effectiveness
of the rule.
In this action, EPA is requiring that
owners or operators use a prospective
approach (the Annualizing Method),
that focuses on the current leak event
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rather than the size of past leaks, or a
retrospective approach (the Rolling
Average Method), where past
performance is key. If an owner or
operator repairs all identified leaks and
verifies that the repairs have been
successful, then the Agency considers
that a sufficient clearing event in that
the leak rate has been brought as close
to zero as possible. We recognize that
these changes may require modification
to software and technician training with
the new requirements. For that reason,
EPA intends to develop several
compliance assistance tools that will
help technicians and owners/operators
to better understand the requirements.
EPA has also delayed the compliance
date for the appliance maintenance and
leak repair requirements to January 1,
2019, to allow time for the industry to
prepare for these changes.
Low-Pressure Appliance
EPA is amending the definition of
low-pressure appliance to update the
list of example refrigerants with the
most commonly used refrigerants today.
Because revisions to appliance and
refrigerant carry over into this term as
well, under the revisions finalized in
this action, low-pressure appliances
include those that use ODS and nonODS substitute refrigerants. EPA is
finalizing this definition as proposed.
Medium-Pressure Appliance
EPA is amending the definition of
medium-pressure appliance to update
the list of example refrigerants with the
most commonly used refrigerants today.
Because revisions to appliance and
refrigerant carry over into this term as
well, under the revisions finalized in
this action, medium-pressure appliances
include those that use ODS and nonODS substitute refrigerants. EPA is
finalizing this definition as proposed.
Mothball
EPA proposed to revise the defined
term system mothballing to mothball to
reflect how it is used in the regulations,
and EPA is finalizing this definition as
proposed. Mothballing an appliance
suspends the time needed to complete
repairs, retrofit or retirement plans, or
the actual retrofit or retirement of
appliances that have triggered the leak
repair requirements. The previous
definition referred to refrigeration
appliances, but the suspension is
allowed for comfort cooling appliances
as well as commercial refrigeration and
IPR systems. EPA is therefore removing
the reference to ‘‘refrigeration’’
appliances in the definition. The
previous definition also required that
the appliance be shut down for ‘‘an
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extended period of time.’’ EPA is
removing this phrase because the
Agency is not concerned about length of
time that the system is shut down but
rather that the system has been removed
from service temporarily, as opposed to
permanently, and that the refrigerant
has been evacuated. The revised
definition also notes that refrigerant can
be evacuated from an isolated
component of the appliance if only an
isolated section or component is
affected and makes minor edits to
improve clarity and readability. EPA is
also clarifying in § 82.157(d)(3) and
§ 82.157(i) that the suspension of time
ends when refrigerant is added back
into the appliance.
One commenter recommended that
EPA allow the system to be filled with
nitrogen or another inert gas to protect
the system while repair is in process.
EPA responds that the regulations in
subpart F do not prohibit or address this
action, as long as the holding charge is
an inert gas and not a refrigerant as
defined in this subpart. However, EPA
is not making revisions to address this
point specifically, as the regulations in
subpart F are concerned with
refrigerants and the nitrogen or other
inert gas in this example is not being
used as a refrigerant.
Normal Operating Characteristics and
Conditions
As proposed, EPA is changing the
defined term normal operating
characteristics or conditions by
replacing ‘‘or’’ with ‘‘and’’ for
consistency through the regulations and
to accurately describe the intended state
of the appliance to which this term
refers. EPA is also removing a reference
to a section of the regulation that has
moved and adding a reference to the
appliance’s full charge. Operating at full
charge is a necessary element of an
appliance’s normal characteristics and it
should be reflected in the definition.
Finally, the revised definition clarifies
that this term applies to all appliances,
not just refrigeration appliances.
Normally Containing a Quantity of
Refrigerant
As proposed, EPA is removing the
defined term normally containing a
quantity of refrigerant. Because EPA is
replacing this term with the phrase
‘‘with a full charge of’’ in the regulatory
text where the term occurred, this
definition is no longer needed.
One-Time Expansion Device
EPA is amending the definition of
one-time expansion device as proposed
to clarify that this includes devices that
can store multiple charges, which are
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released individually to the
environment to provide a cooling effect.
Opening an Appliance
EPA proposed to amend the definition
of opening an appliance to improve
readability. EPA is finalizing this
amended definition as proposed.
Reclaim
As proposed, EPA is changing the
defined term reclaim refrigerant to
reclaim so as to match usage in the
regulatory text and to update the Air
Conditioning, Refrigeration, and Heating
Institute (AHRI) standard referenced in
the definition. Because revisions to
refrigerant carry over into the definition
for this term, it is appropriate to use the
updated AHRI standard which also
includes non-ODS substitute
refrigerants.
Recover
As proposed, EPA is changing the
defined term recover refrigerant to
recover so as to match usage elsewhere
in the regulatory text.
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Recycle
In the context of recycling refrigerant,
EPA is finalizing revisions to the
defined term recycle refrigerant to
recycle so as to match usage elsewhere
in the regulatory text. The revised term
also clarifies that reuse of recycled
refrigerant must occur in equipment of
the same owner. This revision facilitates
consistency with the prohibition in
§ 82.154(g) of the existing rules on the
sale of used refrigerant unless it has
either been reclaimed or is being
transferred to an appliance owned by
the same parent company or by the
same federal agency or department. EPA
is finalizing this definition substantially
as proposed.
Refrigerant
EPA is amending the definition of
refrigerant, for the purposes of subpart
F, to include both ODS and substitutes
that are used for heat transfer purposes
and provides a cooling effect. This
amended definition is closer to how the
term is commonly understood, based on
its functional properties. From an
engineering standpoint, it is irrelevant
whether or not a compound is an ODS
to function as a refrigerant. Broadening
the term also brings another term in
subpart F that contains this term,
refrigerant circuit, more in line with
common usage.
One commenter stated that EPA does
not have authority to regulate
substitutes to the same extent as class I
and class II ODS and thus the Agency
is prohibited from redefining refrigerant
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to include substitutes. EPA is revising
the definition of refrigerant under
subpart F for purposes of interpreting,
explaining, and enforcing the venting
prohibition, which applies to substitute
refrigerants as well as to ODS
refrigerants. EPA is not revising the
definition of refrigerant for other
subparts under part 82. EPA addresses
comments about its authority for this
action in Section III of this notice.
Retire
EPA is creating a defined term retire.
EPA proposed retire to mean, in
reference to appliances, the disassembly
of the entire appliance including its
major components, such that the
appliance as a whole cannot be used by
any person in the future.
One commenter recommended that
retire not include the phrase ‘‘such that
the retired appliance as a whole cannot
be used by any person in the future.’’
The commenter is concerned that this
could prevent the reuse of certain
equipment parts. Furthermore, the
owner/operator has no means to
determine the ultimate fate of the retired
appliance or components. Another
commenter stated that the requirement
to render the appliance unfit for use by
the current or future owner is
unnecessary because retired appliances
typically use an older refrigerant and are
not economical to purchase. Requiring
that the owner do something to render
the unit unfit for use would impose an
unnecessary burden. EPA responds that
the term retire concerns the continued
use of that appliance as a whole. All of
the working components of a retired
appliance could be disassembled and
resold to be used in multiple other
appliances because the original
appliance, as a whole, is no longer
operating.
Another commenter stated that
appliances may be retired without being
completely disassembled. This
comment stated that often, especially for
IPR, appliances can be abandoned in
place for a considerable length of time;
so long as an appliance is made
inoperable and permanently shut down
it should be considered retired. This
commenter provided recommended
language which accurately describes the
necessary state of the appliance
‘‘rendered unusable’’ and notes that any
remaining refrigerant would be
recovered from the appliance. EPA is
finalizing the definition of retire that
largely matches the definition suggested
by this commenter because it more
accurately describes the intent of what
the Agency proposed.
As discussed in the proposed rule,
retirement differs from mothballing, as
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defined at § 82.152, because a
mothballed appliance is simply
evacuated and shut down until it is
ready to be used once again, whereas
retirement involves a permanent
shutdown of an appliance. Retirement
should also not be confused with a
repair. Repair is not expressly defined
in the subpart F regulations. Repair may
include the removal of a faulty
component, but such removal does not
mean that the appliance as a whole has
been removed from service and
rendered unfit for further use.
Throughout this rule, ‘‘replacement’’ or
‘‘replace’’ may be used when discussing
a situation where an existing appliance
is retired and replaced with another
appliance. In some instances, however,
the owner or operator may choose to
only retire and not replace an appliance
so the two terms are not always used
together.
Retrofit
EPA is creating a defined term retrofit.
Many appliance owners or operators
have incorrectly equated retrofit with
repair and EPA received one comment
on the proposed rule requesting
additional examples of activities and
refrigerant conversions that would
qualify as a retrofit.
EPA is finalizing this definition as
proposed. EPA uses retrofit to refer to a
change to the appliance in order to
convert it to the use of a different
refrigerant. In response to the comment
requesting the addition of examples of
activities or refrigerant conversions,
EPA concludes that it is not necessary
to include additional examples of
activities in the definition. Further, EPA
is not specifying the type of refrigerants
that are being converted, though
typically retrofits have involved the
replacement of an ODS with a nonozone depleting substitute. Retrofits
often require changes to the appliance
(for example, change in lubricants, filter
driers, gaskets, o-rings, and in some
cases, components) in order to acquire
system compatibility. Sometimes very
few or no changes to the appliance are
necessary to convert from one
refrigerant to another. That would still
be a retrofit because the refrigerant has
changed.
Retrofit does not apply to upgrades or
repairs to existing equipment where the
refrigerant is not changed. EPA
generally considers a repair to include
an action that addresses the leaking
appliance or the affected component(s)
of the leaking appliance. Repairs may
include replacement of components or
component subassemblies but changing
the refrigerant would make the action a
retrofit.
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Self-Sealing Valve
EPA is finalizing its proposal to create
a defined term self-sealing valve. Under
this definition, self-sealing valve is a
valve affixed to a container of refrigerant
that automatically seals when not
actively dispensing refrigerant and that
meets or exceeds established
performance criteria as identified in
§ 82.154(c)(2). The purpose of a selfsealing valve is to prevent or minimize
inadvertent release of refrigerant to the
environment during the use and storage
of the container of refrigerant. The
requirement for self-sealing valves for
small cans of MVAC refrigerant is
discussed in more detail in Section
IV.C.
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Small Appliance
EPA is finalizing proposed
amendments to the definition of small
appliance to remove the reference to
class I and class II refrigerants. Because
revisions to appliance and refrigerant
carry over into this term as well, under
the revisions finalized in this
rulemaking small appliances include
those that use ODS and non-ODS
substitute refrigerants. EPA is also
adding portable air conditioners to the
list of example small appliances.
One commenter requested that EPA
specifically exclude MVACs and
MVAC-like appliances from this
definition. The commenter believes that
without such an exclusion those types
of appliances would be included in the
revised definition of small appliance,
which it characterizes as including any
appliance charged with five pounds or
less of refrigerant, and be subject to
regulations that apply to small
appliances. EPA responds that MVACs
and MVAC-like appliances are not small
appliances even though the charge sizes
may be similar. Small appliances must
be hermetically sealed, which MVACs
and MVAC-like appliances are not.
Another commenter noted that EPA
has specifically granted an exemption
for the manufacture of small appliances
in subpart B and urged EPA to preserve
that exclusion in subpart F for MVACs.
The commenter points to the definition
of motor vehicle in subpart B. EPA
responds that the definition of motor
vehicle air conditioner in subpart F is
simply a reference to subpart B. Thus,
the use of MVAC in subpart F has the
meaning granted to it in subpart B and
this rule does not remove the exclusion
granted for the assembly of MVACs in
subpart B. EPA disagrees that it is
necessary to clarify this point by
amending the definition of appliance,
which is a broader category, nor is it
appropriate to amend the definition of
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small appliance in the manner in which
the commenter recommends. See
discussion under the definition of
appliance for additional information.
Substitute
EPA is finalizing proposed
amendments to the definition of
substitute to remove the phrases ‘‘EPAapproved’’ and ‘‘in a given refrigeration
or air-conditioning end-use.’’ These
phrases are references to the SNAP
program, which identifies acceptable
alternatives to ODS for specific enduses. The Agency has changed the status
of certain refrigerants from acceptable to
unacceptable for new retail food
refrigeration equipment, vending
machines, and motor vehicle air
conditioning (80 FR 42870; July 20,
2015). EPA has also recently proposed
to make additional changes (81 FR
22810; April 18, 2016). EPA does not
mean to imply that finding a refrigerant
to be unacceptable in a given end-use
under SNAP means that it is no longer
included within substitute, and thus by
extension refrigerant. Were that the
case, those substances would be
exempted from the safe handling
requirements of subpart F, or even the
venting prohibition, despite still being
used as refrigerants. EPA intends for
those substances to continue to be
subject to those requirements where
they are being used as refrigerants.
Accordingly, EPA is finalizing this
revision to prevent that confusion,
especially since the Agency allows for
the servicing of existing appliances
designed to use refrigerants that the
Agency recently listed as unacceptable
in new (and in some cases) retrofitted
appliances.
Under the revised definition, any
chemical or product, whether existing
or new, that is used by any person as a
replacement refrigerant for a class I or
II ozone-depleting substance would be
considered a substitute, even if it has
been recently listed as unacceptable
under SNAP in some end-uses or has
not been submitted to or reviewed by
the SNAP program. One commenter
stated that by limiting the definition of
substitute to replacements for ODS, EPA
could be unintentionally permitting
new replacements to HFCs, as opposed
to ODS, to be beyond the scope of
subpart F. Another commenter
suggested that the term be limited to the
SNAP-approved list of substitutes but
provided no reasons for such a
limitation.
EPA responds that in 2004, the
Agency affirmed an inclusive view of
the scope of substitutes under subpart F.
In that rule, it stated:
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Under section 608, EPA considers a SNAPapproved refrigerant a ‘substitute’ for CFC or
HCFC refrigerants under section 608 if any of
the following is the case: (1) The substitute
refrigerant immediately replaced a CFC or
HCFC in a specific instance, (2) the substitute
refrigerant replaced another substitute that
replaced a CFC or HCFC in a specific
instance (i.e., it was a second-or latergeneration substitute), or (3) the substitute
refrigerant has always been used in a
particular instance, but other users in that
end-use have used it to replace a CFC or
HCFC. (March 12, 2004; 69 FR 11958)
EPA continues to hold this
interpretation, except that for the
reasons discussed above, EPA no longer
maintains the position that substitutes
must be approved under SNAP in order
to be considered a refrigerant under
section 608 when the substance is used
as a refrigerant. In addition, the phrase
‘‘any chemical or product, whether
existing or new’’ makes clear that the
term is to be applied broadly, even to
compounds that do not yet exist or have
not yet been developed.
Other commenters recommended that
EPA explicitly state the types of
refrigerants that are considered
substitutes. The proposal stated that
EPA intends to apply the requirements
in subpart F to all substances that are
functionally refrigerants, including but
not limited to HFCs, PFCs, HFOs,
hydrofluoroethers, and hydrocarbons, as
long as those substances have not been
exempted from the venting prohibition.
To the extent these comments are
suggesting that EPA should provide
some examples as a non-exhaustive list
in the definition, EPA agrees that this
increases clarity and EPA has added a
non-exhaustive list of examples of
substances that would be included in
this definition, as well as clarifying that
blends of such substances are also
included. This approach also matches
other definitions in subpart F that have
similar lists of examples. To the extent
the commenters are suggesting that EPA
establish an exhaustive list of
substances that would qualify as
substitutes, EPA does not agree such a
list is needed or would be feasible to
include. Including such a list would
also be unadvisable given the continued
development of new substitutes.
Therefore, the definition provides an
illustrative list of substances that are
included.
To provide clarity, EPA is adding
mention of the venting prohibition in
the definition of substitute. While EPA
is finalizing its interpretation that
carbon dioxide, nitrogen, water,
ammonia, chlorine, hydrocarbons, and
R–441A are substitutes, the regulations
as finalized make clear that when these
substitutes are used as refrigerants in
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the end-uses specified in § 82.154(a)(1),
they are exempt from the requirements
of subpart F and can be referred to as
‘‘exempt’’ substitutes. Similarly, the
term ‘‘non-exempt substitutes’’ as used
in this subpart refers to all other
substitutes and end-uses not specified
in § 82.154(a)(1) as exempt from the
venting prohibition. This clarification is
only for purposes of the subpart F
regulations, and should not be
construed to affect any other subpart.
One commenter requested that the
regulations include the phrase ‘‘nonexempt refrigerants’’ more frequently so
that the reader does not have to
understand that the regulatory
definition of refrigerants excludes
substitutes that are exempted from the
venting prohibition. EPA responds that
while exempt substitutes are included
in the regulatory definition of
refrigerant, the regulatory text has been
revised to clarify that the obligations
under subpart F do not apply to exempt
substitutes. EPA has included in the
definition of substitute a description of
the terms ‘‘exempt substitutes’’ and
‘‘non-exempt substitutes’’ with
reference to § 82.154(a)(1), which
provides that exempt substitutes are
exempt from the requirements of this
subpart, so that readers of the regulation
can follow EPA’s intent from the
definition. EPA has also added
references in the regulation to class I,
class II, and non-exempt substitute
refrigerants, where applicable, to be
clear which refrigerants are subject to
the provisions.
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Suitable Replacement Refrigerant
EPA is removing the defined term
suitable replacement refrigerant. As
discussed in Section IV.F.10 of this
notice, EPA is removing the extension to
retrofit or retire an appliance using an
ODS refrigerant if a suitable
replacement refrigerant with a lower
ozone depletion potential is
unavailable. It is therefore appropriate
to remove the term from the list of
definitions.
System Receiver
EPA is finalizing the creation of a
defined term system receiver to provide
clarity to the reader and improve the
organization of these regulations, by
providing a definition of this term in a
location where the reader might expect
to find it. Under the added definition,
a system receiver is the isolated portion
of the appliance, or a specific vessel
within the appliance, that is used to
hold the refrigerant charge during the
servicing or repair of that appliance.
This definition was previously included
only in a parenthetical in the regulatory
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text at § 82.156(a), which describes the
required practices to properly evacuate
refrigerant from an appliance. The
definition added in this rule does not
introduce any new practices to the
evacuation requirements. EPA is also
removing the parenthetical in
§ 82.156(a), as it is no longer needed.
Technician
EPA is amending the definition of
technician to improve clarity. As
revised, the definition highlights that
the determining factor for being a
technician is performing actions that
could reasonably be expected to violate
the integrity of the refrigerant circuit. In
general, only people who have
completed the technician certification
process should be performing actions
that could violate the integrity of the
refrigerant circuit and could therefore
release refrigerant into the environment.
The exception to that general
statement is that persons maintaining,
servicing, or repairing MVACs and
persons disposing of small appliances,
MVACs, or MVAC-like appliances do
not need to be technicians, as defined
within subpart F. This exception is
explicitly included in the definition
finalized in this action. This revision is
not intended to affect the scope of the
existing requirements but rather to
respond to requests from stakeholders
prior to the publication of the proposed
rule that the Agency clarify which
activities must be conducted by
technicians and which need not be. EPA
received comments stating that the
proposed revision would require
persons maintaining, servicing, or
repairing MVACs to be technicians. EPA
did not intend to impose that
requirement and has corrected that in
the final rule. EPA also edited the
regulations in the sales restriction in
§ 82.154(c) to ensure that technician
applies only to technicians authorized
under section 608 and not persons
authorized under section 609.
The prior definition of technician also
included a non-exclusive list of example
activities that are reasonably expected to
violate the integrity of the refrigerant
circuit as well as examples of activities
that do not. EPA proposed to edit these
examples to improve clarity and to add
the following two examples of activities
reasonably expected to violate the
integrity of the refrigerant circuit:
Adding or removing components and
cutting the refrigerant line. EPA is
finalizing the definition substantially as
proposed, including the two new
example activities that are reasonably
expected to violate the integrity of the
refrigerant circuit, and with the
modifications from the proposal
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described above related to MVACs and
persons authorized under section 609.
Very High-Pressure Appliance
EPA is finalizing amendments to the
definition of very high-pressure
appliance to update the list of example
refrigerants with the most commonly
used refrigerants today. Because
revisions to appliance and refrigerant
carry over into this term as well, under
the revised definition very high-pressure
appliances include those that use ODS
and non-ODS substitute refrigerants.
Voluntary Certification Program
EPA is finalizing the proposed
removal of the defined term voluntary
certification program. This term
references a provision in the regulations
that grandfathered in technicians who
were certified prior to the establishment
of the technician certification program
in subpart F. As discussed in Section
IV.J.4 below, EPA is removing these
grandfathering provisions in this action
because they are no longer needed and
therefore is removing the definition as
well.
B. Revisions to the Venting Prohibition
in § 82.154(a)
1. Background
As explained in Section III of this
notice, under the revisions finalized in
this rule, § 82.154(a) prohibits the
venting of ODS refrigerants and nonODS substitute refrigerants to the
environment by persons maintaining,
servicing, repairing, or disposing of an
appliance. This provision provides an
exemption to the venting prohibition for
certain substitutes in specific end-uses
based on a determination that the listed
substitutes in the listed end-uses do not
pose a threat to the environment when
released. As revised, this section also
exempts from the venting prohibition de
minimis releases of ODS refrigerants
and non-exempt substitute refrigerants,
and defines de minimis releases of ODS
refrigerants and non-exempt substitute
refrigerants to be those releases that
occur when the other provisions of
subpart F (or subpart B in the case of
MVACs) are followed.
2. Applying the de minimis Exemption
to Substitute Refrigerants
As explained in more detail earlier in
this notice, the knowing venting,
release, or disposal of substitutes for
class I and class II refrigerants in the
course of maintaining, servicing,
repairing, or disposing of an appliance
or IPR is expressly prohibited by section
608(c)(1) and (2) of the CAA, effective
November 15, 1995, unless the
Administrator determines that such
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venting, release, or disposal does not
pose a threat to the environment. This
prohibition is commonly called the
venting prohibition. Section 608(c)(1)
establishes the venting prohibition for
class I and class II substances, and also
establishes an exemption from the
prohibition for de minimis releases
associated with good faith attempts to
recapture and recycle or safely dispose
of ‘‘any such substance.’’ The statutory
language of section 608(c)(2) extends
paragraph 608(c)(1) to substitutes for
class I and class II substances used as
refrigerants in appliances and IPR. This
extension includes both the prohibition
on venting and the exemption for de
minimis releases associated with good
faith attempts to recapture and recycle
or safely dispose of such substances.
Prior to this rulemaking, for class I
and II substances EPA had interpreted
as de minimis those releases that occur
despite compliance with EPA’s required
practices under the previous regulations
for recycling and recovery, use of
certified recovery and/or recycling
equipment, and technician certification
programs. EPA interpreted compliance
with those regulations to represent
‘‘good faith attempts to recapture and
recycle or safely dispose’’ of refrigerant.
Accordingly, the prior regulations at
§ 82.154(a)(2) provided that releases of
ODS refrigerants are considered de
minimis only if they occur when the
other provisions of subpart F (or subpart
B in the case of MVACs) are followed.
Although the prior regulations at
§ 82.154(a) exempted de minimis
releases of non-exempt substitutes from
the venting prohibition, those
regulations did not provide any express
guidance for such substitutes as to what
practices are considered ‘‘good faith
attempts to recapture and recycle or
safely dispose’’ of the substitute such
that incidental releases would qualify
for the de minimis exemption.
EPA interprets the phrase ‘‘good faith
attempts to recapture and recycle or
safely dispose’’ similarly when it
applies to substitute refrigerants under
section 608(c)(2) as when it applies to
ODS refrigerants under section
608(c)(1). Thus, compliance with the
provisions regarding the evacuation of
equipment, use of certified equipment,
and technician certification in any
instance where a person is opening (or
otherwise violating the refrigerant
circuit) or disposing of an appliance
would represent ‘‘good faith attempts to
recapture and recycle or safely dispose’’
of non-exempt substitute refrigerants.
EPA considers these provisions to
appropriately represent good faith
attempts to recapture and recycle or
safely dispose of such substitute
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refrigerants. For example, the proper use
of certified recovery equipment and the
evacuation of refrigerant to prescribed
standards would be considered a good
faith attempt to recapture and recycle or
safely dispose of non-exempt substitute
refrigerants when maintaining,
servicing, repairing, or disposing of an
appliance.
Under this approach, releases are only
considered de minimis if they occur
when these procedures, or those under
subpart B, are followed. Conversely,
emissions that take place during
maintenance, servicing, repair, or
disposal when these provisions are not
followed are not de minimis emissions
and are subject to the venting
prohibition. While these principles were
clearly expressed in the prior
regulations for ODS, the prior
regulations did not clearly establish
what practices the regulated community
would need to follow in order to qualify
for the de minimis exemption and to
comply with the venting prohibition
while maintaining, servicing, repairing,
or disposing of equipment containing
non-exempt substitute refrigerants. With
the revisions finalized in this rule, EPA
is clarifying how the venting prohibition
and de minimis exemption apply to
non-exempt substitute refrigerants, to
increase certainty for and facilitate
compliance by the regulated
community, as well as further
explaining its interpretation of these
statutory provisions.
It is impossible to open an appliance
(or otherwise violate the refrigerant
circuit) or dispose of an appliance
without emitting some of the refrigerant
in the circuit. Even after the appliance
has been evacuated, some refrigerant
remains, which is released to the
environment when the appliance is
opened or disposed of. Other activities
that fall short of opening or disposing of
the appliance but that involve violation
of the refrigerant circuit also release
refrigerant, albeit in very small
quantities, because connectors (e.g.,
between hoses or gauges and the
appliance) never join together without
intervening space. Even in the best case
in which a good seal is made between
a hose and an appliance before the valve
between them is opened, some
refrigerant will remain in the space
between the valve and the outer seal
after the valve is closed. This refrigerant
will be released when the outer seal is
broken. Thus, whenever a person opens
an appliance (or otherwise violates the
refrigerant circuit) in the course of
maintaining, servicing, repairing, or
disposing that appliance, he or she
could violate the venting prohibition
unless the exception for de minimis
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releases applies. Because EPA is
finalizing revisions that define the
exception for substitute refrigerants
such that it only applies when the
person complies with the existing
refrigerant management provisions,
compliance with those provisions will
ensure that any releases incidental to
these practices will be considered de
minimis and thus will not violate the
venting prohibition under section
608(c)(2).
One commenter stated that it fails to
see why it would be unclear to the
regulated community that the same de
minimis exemption applicable to class I
and II substances applies equally to
substitutes. Section 608(c)(1) provides a
specific de minimis exemption.
Paragraph 1 contains the de minimis
language, so that language clearly
applies to the intentional venting/
release of substitutes under paragraph 2.
In other words, the de minimis language
in section 608(c)(1) is expressly
applicable to section 608(c)(2), and
there is no ambiguity that EPA needs to
clarify.
EPA agrees with the comment that the
statute applies the de minimis
exemption to substitute refrigerants.
This statutory interpretation supports
the revisions finalized in this rule. The
statutory ambiguity arises because
neither section 608(c)(1) or (2)
specifically define what releases would
qualify for the de minimis exemption or
what would be considered ‘‘good faith
attempts to recapture and recycle or
safely dispose’’ of such a substance. The
Agency previously established
regulations clarifying what releases
would be considered exempt from the
venting prohibition under the de
minimis exemption for ODS refrigerants.
For class I and II substances EPA has
interpreted those releases that occur
despite compliance with EPA’s required
practices for recycling and recovery
under the previous § 82.156, use of
recovery and/or recycling equipment
certified under § 82.158, and technician
certification programs under § 82.161 as
falling within the de minimis
exemption. Because the de minimis
language in section 608(c)(1) is directly
applicable to section 608(c)(2), it is
reasonable for EPA to choose to use the
same regulations to clarify which
releases of non-exempt substitute
refrigerants qualify for the de minimis
exception. These regulations
accordingly fill a gap in the statute and
the prior regulations relating to the
definition of the de minimis exemption
and the phrase ‘‘good faith attempts to
recapture and recycle or safely dispose’’
for non-exempt substitute refrigerants.
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Another commenter stated that EPA
must distinguish between provisions
interpreting and enforcing the venting
prohibition and other provisions
implementing the statutory
requirements to ‘‘minimize the use and
emission’’ and ‘‘maximize the recapture
and recycling’’ of class I and class II
substances. In the commenter’s view,
the leak repair program is clearly related
to the latter requirements. In addition,
to the extent that a regulatory violation
such as recordkeeping does not cause a
release, EPA cannot use that as a
violation of the venting prohibition. The
comment concludes that all de minimis
releases associated with good faith
attempts to recover or recycle
refrigerants are exempt regardless of
regulatory compliance.
EPA disagrees that there is a subset of
the provisions finalized in this action
that does not interpret, explain, or
enforce the venting prohibition and is
only aimed at minimizing the use and
emission or maximizing the recapture
and recycling of refrigerants. Under the
prior regulations with regard to ODS,
the regulatory text has long used the
required practices under subpart F,
including the leak repair provisions
under the prior § 82.156(i), to clarify
which emissions will qualify for the de
minimis exemption and thus not run
afoul of the venting prohibition. The
stakeholder community has appeared to
accept this structure, and the
interpretation of the venting prohibition
it embodies, as it related to ODS. As
described above in more detail, EPA is
extending this regulatory structure
which has long interpreted and enforced
the venting prohibition for ODS to do
the same for the venting prohibition as
it applies to non-exempt substitute
refrigerants. The fact that these
requirements may also be related to
minimizing the use and emission or
maximizing the recapture and recycling
of ODS refrigerants does not preclude
EPA from using those requirements to
clarify how the venting prohibition
applies to non-exempt substitute
refrigerants. Nor does it prevent EPA
from choosing to interpret, explain, and
enforce the de minimis exemption for
ODS and non-exempt substitutes
through consistent requirements. EPA is
extending this regulatory structure to
non-exempt substitutes to clarify its
interpretation of the ambiguous
statutory phrase ‘‘de minimis releases
associated with good faith attempts to
recover or recycle refrigerants’’ and to
enhance certainty that emissions that
occur while complying with the
regulations are covered by this
exemption. After the revisions finalized
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in this rule, releases of non-exempt
substitutes will be considered de
minimis only if they occur when the
specified requirements are satisfied.
In addition, EPA does not agree with
the comment’s implication that the leak
repair program relates only to
minimizing the use and emission or
maximizing the recapture and recycling
of refrigerants. For example, leak repair
is a type of servicing and releases of
non-exempt substitutes that occur in the
course of repairing leaks as required by
the leak repair program could violate
the venting prohibition. As such, it is
reasonable to clarify in the regulations
that releases of non-exempt substitutes
that are incidental to repairing leaks as
required by the regulations will not be
considered to violate the venting
prohibition. In establishing the
recordkeeping requirements in this rule,
EPA is not suggesting that every failure
to comply with a recordkeeping
requirement would necessarily result in
a violation of the venting prohibition.
But in any event a failure to comply
with a recordkeeping requirement
would certainly be a violation of section
114.
Another commenter stated that there
is no basis in the text of the CAA to
assert that the venting prohibition is
self-effectuating but that the de minimis
exemption is not. It may be reasonable
to interpret de minimis to mean in
compliance with a comprehensive
regulatory program when such a
program is already authorized, but EPA
cannot create a comprehensive
regulatory program from that term. The
commenter believes that it would be
reasonable to interpret de minimis as
those releases that occur when
following best practices that occur while
maintaining, servicing, repairing, or
disposing of an appliance.
While the prohibition on venting
under section 608(c) is self-effectuating,
meaning the prohibition itself is legally
binding even without implementing
regulations, the statutory terms contain
ambiguity. For example, the terms ‘‘de
minimis releases’’ and ‘‘good faith
attempts to recapture and recycle or
safely dispose’’ are not specifically
defined in section 608(c)(1) or (c)(2).
Accordingly, it is appropriate for EPA to
clarify in its regulations how it
interprets and will apply those terms.
As described in greater detail above,
EPA is finalizing revisions to the section
608 regulations to further interpret and
explain the venting prohibition and
increase its enforceability by giving
greater clarity and certainty as to which
releases it views as being covered by the
de minimis exemption. Addressing the
application of the venting prohibition
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and the de minimis exemption through
rulemaking provides advance notice to
regulated entities; this is in contrast to
case-by-case application, which would
be the approach in the absence of
rulemaking.
Further, even if we agreed with the
comment that the term de minimis does
not support development of a
comprehensive regulatory program, EPA
is not creating such a program through
this rule. Rather, it is extending a
regulatory program that already exists
and serves to interpret and enforce the
venting prohibition and de minimis
exemption for ODS and using those
same requirements for the same purpose
for non-exempt substitute refrigerants.
Although EPA could have chosen a
different method to interpret and
enforce the venting prohibition for nonexempt substitute refrigerants, for
reasons described elsewhere in this rule,
EPA is electing to regulate ODS
refrigerants and non-exempt substitute
refrigerants consistently.
3. Exempting Certain Substitutes From
the Venting Prohibition
EPA proposed to explicitly state in
the regulatory text that the substitutes
exempted from the venting prohibition
in § 82.154(a)(1) are also exempt from
the other provisions of subpart F. EPA
also proposed to reorganize the list of
exempt substitutes by refrigerant type
for readability. EPA did not propose to
revise the listed end-uses or propose to
add or remove any substitutes from the
list.
Multiple commenters supported
EPA’s proposal to extend the existing
regulations to HFCs and other nonexempt substitutes for the clarity it
would provide to manufacturers and
technicians. Other commenters
recommended that EPA treat all
refrigerants (including exempt
substitutes like hydrocarbons, ammonia,
and carbon dioxide) equally in all
aspects of the subpart F regulations,
including recovery and reclamation,
technician certification, leak detection,
and recordkeeping. Consistent
application of the regulations to all
refrigerants, the commenters say, would
reinforce essential refrigerant
management practices for all systems,
reduce leaks, improve safety, and
improve the operating efficiency of
equipment. The commenters say that all
refrigerants, other than water and some
HFOs, have either flammability
properties, higher GWP properties, or
properties hazardous to human health
(toxicity, risk of asphyxiation, frostbite,
etc). Another commenter was opposed
to exempting refrigerants that may be
vented from the broader subpart F
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requirements (with the possible
exception of systems using water,
nitrogen, or carbon dioxide) as it viewed
such an exemption as a dramatic
expansion of the exemption to the
venting prohibition. The commenter
states that establishing a separate class
of equipment that does not require
proper refrigerant management practices
will only increase confusion in the field
and exacerbate the problem of illegal
venting.
EPA agrees with the comments that
the extension of the subpart F
regulations increases clarity. EPA
disagrees that its clarification that
exempt substitutes are not subject to the
subpart F requirements is an expansion
of the exemption since the service
practices and requirements in subpart F
had previously only applied to ODS
refrigerant. There are a couple of
reasons for EPA’s present view that it is
appropriate not to extend the provisions
of subpart F to refrigerants that have
been exempted from the venting
prohibition. First, EPA has previously
determined that the release of these
substances do not pose a threat to the
environment or are already controlled
by other authorities. (See 69 FR 11949,
80 FR 19454, and 81 FR 22810). Given
those decisions, it would generally not
make sense to require all procedures for
recovery or safe disposal, or to apply all
other provisions of subpart F to those
exempt refrigerants. This is consistent
with the intent of section 608(c)(2),
which states that substitutes may be
exempted from the venting prohibition
if the Administrator determines that not
just the venting but also the ‘‘releasing,
or disposing’’ of such substance does
not pose a threat to the environment.
Second, the refrigerant management
practices in subpart F may be
inappropriate for some of the exempted
refrigerants. For example, the venting of
exempt hydrocarbon refrigerants in
certain end-uses may be the safest
option for technicians at this time,
considering that such refrigerants are
flammable but most existing recovery
equipment were not designed and
constructed, e.g. with spark-proof
components, for use on flammable
refrigerants. As long as the
Administrator has determined that such
venting of those substances in those
end-uses does not pose a threat to the
environment, such venting is legal and
may be safer than following the subpart
F requirements in some circumstances.
ODS and non-exempt substitute
refrigerants) after its recovery from an
appliance. EPA is moving this provision
to a separate paragraph (§ 82.154(a)(3))
rather than its previous location in the
description of a de minimis release.
Standing alone should make the
provision clearer that it is a violation of
the venting prohibition to vent or
otherwise release refrigerant after that
refrigerant is recovered from an
appliance, whether from cylinders,
recovery equipment, or any other
storage container or device. The venting
prohibition cannot be circumvented by
using a recovery device and
subsequently releasing the refrigerant.
This is especially important because
refrigerant recovered from appliances
may be contaminated or be a mixture of
multiple refrigerants. Such refrigerant
may be difficult to reclaim or may
require a fee for proper disposal or
destruction. In light of those difficulties,
it is important to emphasize that venting
this refrigerant, even though it is in a
cylinder and not an appliance, is illegal.
EPA did not receive any comments on
this provision and is finalizing it as
proposed.
4. Releases From Containers
EPA is moving the previous
regulatory provision in § 82.154(a)(2)
that states that the venting prohibition
applies to the release of refrigerant (both
2. Extension to Substitute Refrigerants
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C. Revisions to the Refrigerant and
Appliance Sales Restrictions in § 82.154
1. Background
Under the prior regulations at
§ 82.154(m), the sale or distribution of a
refrigerant containing a class I or class
II substance, such as R–12 or refrigerant
blends that include HCFCs, is restricted
to technicians certified under sections
608 or 609 of the CAA. The sale or
distribution of any class I or class II
substance suitable for use in an MVAC
that is in a container of less than 20
pounds may only be sold to technicians
certified under section 609.
The prior regulations at § 82.154(g)
also restricted the sale of used ODS
refrigerant sold for reuse unless certain
conditions are met, the most important
of which is that the refrigerant has been
reclaimed. Sections 82.154(j) and (k)
prohibited the sale of appliances
containing an ODS refrigerant unless the
appliance has a servicing aperture or
process stub to facilitate the removal of
refrigerant at servicing and disposal.
Section 82.154(p) prohibited the
manufacture or import of one-time
expansion devices that contain any
refrigerant (ODS or non-ODS), other
than exempted refrigerants.
Through today’s rule, EPA is
extending the sales restriction to HFCs
and other non-exempt substitute
refrigerants. This sales restriction
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applies to non-exempt substitute
refrigerants sold in all sizes of
containers for use in all types of
appliances, including MVACs. EPA is
creating an exception for small cans
(two pounds or less) of refrigerant
intended to service MVACs, so long as
the cans are equipped with a self-sealing
valve. EPA is also restricting the sale of
used non-exempt substitute refrigerants.
Since 1993, EPA has restricted the
sale of ODS refrigerant to certified
technicians as a means of ensuring that
only qualified individuals—those who
have sufficient knowledge of the safe
handling regulations—actually handle
refrigerant. EPA considers the
restriction on the sale of ODS refrigerant
to be important for ensuring compliance
with and aiding enforcement of the
regulations issued under sections 608
and 609 of the CAA. This requirement
also relates to EPA’s Next Generation
Compliance strategy since compliance
with this requirement is largely carried
out by distributors who sell refrigerant
to technicians. In this rulemaking, EPA
is choosing to apply the same
requirements for sales of ODS and nonexempt substitutes. Limiting the sale of
non-exempt substitute refrigerants to
technicians who have demonstrated
knowledge of safe handling practices
helps minimize the release of
refrigerants during the maintenance,
servicing, and repair of appliances
containing such substitute refrigerants.
A sales restriction for non-exempt
substitute refrigerants also provides
important support to the extension of
the technician certification
requirements to individuals working
with non-exempt substitute refrigerants.
Generally, commenters are supportive
of EPA’s proposal and agree with EPA’s
rationale. Commenters who are
generally opposed to extending EPA’s
regulations under section 608 to
substitutes did not specifically raise the
issue of whether EPA had authority to
extend the sales restriction to HFCs and
other non-exempt substitute
refrigerants. EPA addresses the general
comments about its authority for
extending the refrigerant management
regulations, as appropriate, to nonexempt substitute refrigerants in Section
III of this notice. Some commenters
stated that the sales restriction should
be extended to hydrocarbons. These
commenters noted that the flammability
of these refrigerants poses far greater
risks than that of R–22 when handling
it and servicing equipment. Because the
sales restriction is an element of the
broader technician certification
provisions of subpart F, EPA responds
to comments concerning the sale and
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3. Sales of Small Cans
a. What is EPA finalizing concerning
small cans of MVAC refrigerant?
Historically, individuals have been
able to purchase small cans of non-ODS
refrigerant to service their own vehicles.
This do-it-yourself (DIY) servicing is
unique in the air-conditioning and
refrigeration sector to the MVAC enduse. As mentioned previously in this
notice, EPA is finalizing the extension
of the sales restriction to non-exempt
substitutes. EPA is also finalizing an
exemption from the sales restriction for
small cans of MVAC refrigerant that are
manufactured with a self-sealing valve
to minimize the release of refrigerant
during servicing because the Agency has
concluded that restricting the sale of
small cans of refrigerant for use in
servicing MVAC would be
unnecessarily burdensome. If EPA
extended the sales restriction to
substitute refrigerants without
exempting small cans, the sale of both
small containers of refrigerant, which
are used for DIY servicing of MVAC
systems, and typical size (e.g., 25- or 30pound) cylinders of refrigerant used by
technicians to service MVAC and other
appliances would be limited to certified
technicians.
In the United States, HFC–134a has
been used in all newly manufactured
vehicles with air-conditioning systems
since 1994 and almost all small cans of
refrigerant sold for MVAC DIY use are
cans of HFC–134a.18 More recently, the
SNAP program listed HFO–1234yf,
HFC–152a, and carbon dioxide (CO2 or
R–744), three climate-friendly
alternatives for MVAC, as acceptable
subject to use conditions for use in new
light-duty vehicles. Manufacturers are
currently producing or are actively
developing light-duty models using
these three refrigerants. As finalized in
this rule, the exception for small cans
would apply to HFC–134a, HFO–
1234yf, HFC–152a, as well as any
additional MVAC refrigerants listed as
acceptable subject to use conditions
under SNAP that are not exempt from
the venting prohibition. Because CO2 is
exempt from the venting prohibition, it
is not subject to the sales restrictions
and certification is not required for its
purchase in any size container. EPA has
not received a submission of a unique
fitting for use on a small can of HFO–
1234yf; therefore, at this time this
18 ODS refrigerant for MVAC servicing that is sold
in cylinders less than 20 pounds is currently
restricted to technicians certified under section 609
of the CAA.
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refrigerant cannot be sold in small cans
to individuals, regardless of the
exemption finalized in this rule.
Based on the NPD Automotive
Aftermarket Industry Monitor, 2008,
approximately 14 million small cans are
sold each year. If EPA were to extend
the sales restriction to small cans
without the exemption for small cans
with self-sealing valves, individuals
who normally service their own MVAC
would be required to either seek
certification under section 609 or take
their car to a technician to be serviced.
EPA estimates that the cost associated
with those two actions could be as
much as $1.5 billion per year. For more
details, see Analysis of the Economic
Impact and Benefits of Final Revisions
to the National Recycling and Emission
Reduction Program in the docket.
EPA’s proposal to exempt small cans
of refrigerant for use in MVAC systems
that are equipped with a self-sealing
valve was informed by input from the
Auto Care Association and the
Automotive Refrigeration Products
Institute, two associations that represent
the vast majority of manufacturers of
small cans in the United States. EPA
also reached out to CARB and other
industry representatives as discussed in
the NPRM. Based on California’s
experience, EPA proposed the
exemption for small cans equipped with
self-sealing valves as an effective way to
reduce emissions of HFCs used to
service MVACs without limiting sales to
certified technicians. These valves
reduce the release of refrigerant during
servicing and reduce releases from the
can after the servicing is complete.
Manufacturers already produce small
cans with self-sealing valves to meet
California’s requirements. According to
industry representatives and CARB, selfsealing valves are estimated to cost
$0.25 per can. In light of that
information, EPA does not find it to be
unduly burdensome to add self-sealing
valves to all small cans produced for
sale in the United States, especially as
compared to an extension of the sales
restriction that would prohibit the sale
of small cans to non-certified persons.
Because they are incorporated into the
product, consistent with EPA’s Next
Generation Compliance principles, the
individual servicing her or his personal
MVAC would reduce emissions without
any additional effort or training, as
compared to using small cans of
refrigerant on the market today that do
not employ a self-sealing valve. Thus,
EPA has determined that self-sealing
valves are an effective mechanism for
controlling the release of non-exempt
substitute refrigerants to the
atmosphere, making it unnecessary to
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impose burdensome training and/or
certification requirements more broadly
at this time.
As described in Analysis of the
Economic Impact and Benefits of Final
Revisions to the National Recycling and
Emission Reduction Program, EPA
estimates that a nationwide requirement
to use self-sealing valves on all small
cans will reduce emissions by more
than 0.657 MMTCO2eq. per year. EPA
also anticipates there could be
additional emissions reductions to the
extent the self-sealing valves allow
individuals to store and re-use the same
can of refrigerant, reducing the need to
buy additional small cans. Currently, a
small can is typically used in one
vehicle and then discarded with some
refrigerant still remaining in the can
–from which it will ultimately be
released to the environment. EPA
estimates that the annual cost for this
requirement would be approximately $3
million with the cost decreasing over
time as manufacturers increase
production and achieve greater
economies of scale.
EPA is finalizing a new appendix E
establishing a standard for self-sealing
valves that is based largely on CARB’s
Test Procedure for Leaks from Small
Containers of Automotive Refrigerant,
TP–503, as amended January 5, 2010. To
be consistent with the CARB standard
and existing small cans that are already
on the market, the leakage rate may not
exceed 3.00 grams per year when the
self-sealing valve is closed. This leakage
rate applies to full containers as well as
containers that have been used and are
partially full.
b. How is EPA responding to comments
about this topic?
EPA received comments from several
manufacturers, distributors, and
retailers of automotive refrigerant, and
associations representing them, in
support of requiring that the small cans
be outfitted with self-sealing valves and
not restricting the sale of small cans to
certified technicians. EPA also received
comments from multiple industry
associations and CARB supporting these
provisions.
Two environmental organizations
were opposed to the proposed
exemption for small cans equipped with
self-sealing valves. The commenters
recommend that only certified
technicians be allowed to purchase
MVAC refrigerant, regardless of the
container size. The commenters believe
that the DIY community is a large
source of emissions of automotive
refrigerant. Specifically, they claimed
that emissions occur because DIYers are
untrained in the use of the product, they
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vent remaining refrigerant from the
MVAC prior to recharging it because
they do not own recovery and recycling
equipment, and they are merely filling,
rather than repairing, a leaking system.
One of the commenters estimated the
annual emissions of automotive
refrigerant at 18 MMTCO2eq.
EPA responds that DIY servicing is
unique to the MVAC end-use, as
discussed previously in this notice. EPA
did not propose to restrict the sale of
small cans of MVAC refrigerant to
certified technicians, explaining its
concerns that such a requirement could
be unnecessarily burdensome (80 FR
69479; Nov. 9, 2015). If EPA were to
prohibit DIY servicing, individuals who
normally service their own MVAC
would be required to either seek
certification under section 609 or take
their car to a technician to be serviced.
EPA estimates that the cost associated
with those two actions could be as
much as $1.5 billion per year. In the
short term, EPA has concluded that
requiring small cans of refrigerant to
have self-sealing valves is an effective
mechanism for controlling the release of
refrigerant to the atmosphere by DIYers
from the can of refrigerant. In the longer
term, the transition to new MVAC
refrigerants will reduce emissions of
high GWP refrigerants from DIY
servicing at little to no cost for DIYers.
EPA has estimated that the
requirement for self-sealing valves on
small cans of refrigerant will reduce
refrigerant emissions by 0.657
MMTCO2eq. per year compared to the
current status. Self-sealing valves
prevent emissions of the gas remaining
in the can after the system is fully filled.
Currently, if a system takes 1.5 cans to
fill, the DIYer will have no choice but
to allow the extra 0.5 can to be released
to the environment after detaching it.
Furthermore, because self-sealing valves
allow individuals to store and re-use the
same can of refrigerant, there may be
less need to buy additional small cans.
CARB has claimed benefits of 0.25–0.47
MMTCO2eq for their small can program
in 2020. However, because their
program includes more than just selfsealing valves (e.g., refundable
deposits), the benefits are not directly
comparable. CARB has noted a
reduction in sales of small cans of 1.1
million to 1.9 million cans, which they
attribute to the effectiveness in the
valves and the displacement of new
purchases by later use of the remaining
heel.
EPA received one comment from a
chemical manufacturer stating that they
would support the continued sale of
small cans without self-sealing valves
but limit those sales to certified
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technicians under section 609. EPA
does not see the benefit of restricting the
sale of small cans to people certified
under section 609 since small cans of
refrigerant that do not have self-sealing
valves are inherently emissive. Being
certified under section 609 would not
prevent the emission of the refrigerant
from the heel of the can.
Commenters who oppose the sale of
small cans generally do support the
requirement to use self-sealing valves if
there is not a total ban on sales. One
commenter also strongly recommended
that EPA allow the sale of small cans of
HFO–1234yf and HFC–152a so that DIY
consumers will not be enticed to
recharge their HFO–1234yf system with
HFC–134a for the lack of any
alternative. EPA responds that the
regulations at § 82.154(c)(1)(x) as
revised in this action include any nonexempt substitute refrigerant that is
intended for use in an MVAC.
Therefore, small cans of HFO–1234yf
and HFC–152a would be exempt from
the sales restriction but also have the
same requirements for unique fittings
and self-sealing valves under section
608. As discussed previously in this
notice, HFO–1234yf cannot currently be
sold in small cans because a submission
has not yet been made to SNAP for a
unique fitting for small cans of HFO–
1234yf. This action under section 608
does not prohibit the sale of any MVAC
refrigerant alternative in a small can;
however, refrigerants must be listed as
acceptable or acceptable subject to use
conditions for MVAC and unique
fittings for small cans must be
established under section 612 of the
CAA prior to use19.
Small cans of refrigerant sold for
MVAC servicing are different from
containers of refrigerant sold for
stationary refrigeration and airconditioning in that the small cans for
MVAC are required to have unique
fittings. The SNAP program requires as
a use condition for MVAC refrigerants
that the container and the MVAC system
use unique fittings to prevent crosscontamination. If used properly, the
unique fittings will not allow for the
introduction of HFC–134a refrigerant
into a system using any other
refrigerant, including CFC–12, HFO–
1234yf, or another approved substitute
refrigerant. Using an adapter or
deliberately modifying a fitting to use a
different refrigerant is a violation of the
SNAP use conditions. Unique fittings
will also reduce the likelihood that a
19 ‘‘Use’’ is defined at 40 CFR 82.172 to include
‘‘use in a manufacturing process or product, in
consumption by the end-user, or in intermediate
uses, such as formulation or packaging for other
subsequent uses.’’
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small can will be used to service
appliances other than MVACs that use
non-exempt substitute refrigerants,
which would be in contravention of the
sales restriction.
Refrigerant sold for MVAC servicing
is also different than other refrigerant
because of the limited types of
equipment that could be serviced with
a small can. First, many household
appliances that use refrigerants are
hermetically sealed, like a refrigerator.
Someone who wanted to open that
appliance would need greater skill and
specialized equipment to service the
appliance since there would not be a
servicing port to access. This makes it
less likely that homeowners would
attempt to use a small can to service
other small household appliances.
Larger appliances that use HFC–134a
that are not hermetically sealed, like a
reach-in cooler, would need more than
one small can to fully charge the
appliance. Because of the cost and the
added effort to use multiple small cans
to charge a larger appliance, it is not
practical for someone to use a small can.
This would likely lead the person to
purchase a larger container of
refrigerant, which would require that
the person be a certified technician.
Commenters, including CARB,
supported the use of CARB’s standards.
One commenter representing the
manufacturers of small cans noted that
this standard was developed in a
cooperative effort between CARB and
the refrigerant industry and that the
procedures described in the standard
have been used since 2010 to certify
small cans sold in the California market.
The commenter also stated that
adopting the California standard would
also allow for a quicker transition to
cans with self-sealing valves, while
development and adoption of a new
standard would require a longer
transition time and therefore, EPA
should provide a later compliance date.
EPA agrees with the commenters and
has determined that the establishment
of the standard in appendix E, which is
based on CARB’s Test Procedure for
Leaks from Small Containers of
Automotive Refrigerant, TP–503, is
appropriate. This provides for one
uniform standard across the nation, thus
simplifying compliance and avoiding
potential burdens associated with
complying with two different standards,
one in California and another in the rest
of the country. No commenter identified
any other standard for self-sealing
valves. EPA is finalizing the provisions
in the newly created appendix E
without any changes from the proposal.
EPA requested comment on whether
the final rule should exempt the sale of
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HFC–134a only or of all MVAC
substitute refrigerants in small cans.
One commenter responded that the
exemption should apply to all
refrigerants for use in MVAC and
MVAC-like appliances because the
rationale applies equally to other MVAC
refrigerants. The minimal leakage and
venting from small cans of other
refrigerants is relatively the same as
from small cans of HFC–l34a, and the
commenters know of no technical
reason why a self-sealing valve could
not be created for those cans also. EPA
appreciates the commenters’ support for
the proposal to apply the exemption to
all MVAC substitute refrigerants. EPA is
finalizing the exemption as proposed. It
will apply to all MVAC substitute
refrigerants, except those exempt from
the venting prohibition. EPA also notes
that refrigerants for use in MVAC-like
appliances are not exempt from the
sales prohibition, consistent with EPA’s
approach to MVAC-like appliances
historically. Under section 609,
technician certification is required only
when a person is servicing an MVAC
system for consideration whereas
MVAC-like appliances must always be
serviced by a certified technician.
4. Servicing Apertures and Process
Stubs
EPA is finalizing revisions that
require that new appliances containing
a non-exempt substitute refrigerant
(including a used non-exempt substitute
refrigerant) have a servicing aperture or
process stub to facilitate the recovery of
refrigerant at servicing and disposal.
Including these design features on
appliances containing such substitutes
facilitates compliance with the section
608(c) prohibition against the venting,
release, or disposal of substitute
refrigerants into the environment. These
access points allow for the proper
evacuation or recovery of substitute
refrigerant, preventing releases to the
atmosphere in the course of
maintaining, servicing, repairing, or
disposing of the appliance. Without
these access points, it would be harder
for persons maintaining, servicing,
repairing, or disposing of such
appliances to properly evacuate the
refrigerant in accordance with
§ 82.156(b). For example, these access
points provide the person disposing of
an appliance the opportunity to
properly remove the refrigerant prior to
crushing or shredding and thus avoid a
knowing release. EPA did not receive
comments on this provision. The
manufacture or import of one-time
expansion devices that contain any
refrigerant (ODS or non-ODS), other
than exempted refrigerants, was
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prohibited under the prior regulations.
One-time expansion devices, by design,
release their refrigerant charge to the
environment in order to provide a
cooling effect. Examples include selfchilled beverage containers that must be
disposed of or recycled after each use,
as well as reusable containers. EPA is
finalizing minor edits to this prohibition
that reference the list of exempt
refrigerants as proposed. EPA did not
receive any comments on this provision.
D. Revisions to the Safe Disposal
Provisions in § 82.155
1. Background
In the 1993 Rule, EPA established
specific requirements for the safe
disposal of small appliances, MVACs,
and MVAC-like appliances containing
ODS refrigerant since they typically
enter the waste stream with the
refrigerant charge intact. Under the prior
rules at § 82.156(f), persons who took
the final step in the disposal process of
such appliances had to either recover
any remaining refrigerant in the
appliance or verify that the refrigerant
has previously been recovered from the
appliance or shipment of appliances. If
they verified that the refrigerant has
been recovered previously, they had to
retain a signed statement attesting to
this or a contract from the supplier of
the appliances for three years. While
recovery equipment used to remove the
refrigerant had to be certified under
§ 82.158, persons recovering the
refrigerant at disposal did not need to be
certified technicians.
2. Extension to Substitute Refrigerants
EPA is extending the preexisting safe
disposal provisions previously found at
§ 82.156(f) for small appliances,
MVACs, and MVAC-like appliances
containing ODS refrigerants to the same
types of appliances that contain nonexempt substitute refrigerants.
Generally, commenters support EPA’s
proposal and agree with EPA’s rationale.
Commenters who stated that EPA does
not have authority to extend section 608
regulations to substitutes were silent on
the specific issue of the safe disposal
provisions. A fuller and more general
discussion of the authority for this
action is found in Section III of this
notice.
Safely disposing of both ODS and
substitute refrigerant in small
appliances, MVACs, and MVAC-like
appliances is important for the
environment and public health.
According to EPA’s Vintaging Model,20
20 EPA’s Vintaging Model estimates the annual
chemical emissions from industry sectors that have
historically used ODS, including air-conditioning
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EPA projects that the GWP-weighted
amount of refrigerant contained within
MVACs and small appliances in use in
2015 was more than 260 MMTCO2eq
and 175 MMTCO2eq, respectively. This
constitutes 12 and 8 percent,
respectively, of the total GWP-weighted
amount of refrigerant contained within
all appliances in the United States in
2015. On an ODP-weighted basis, EPA
estimates that more than 1,400 ODPweighted metric tons of refrigerant were
contained within small appliances in
2015, representing 5 percent of the
refrigerant contained within all
appliances in the United States. While
EPA projects that these amounts will
decrease over time as zero-ODP and
low-GWP substitute refrigerants
penetrate the market, the need for robust
safe disposal requirements remains
because these appliances are used for a
long time. One commenter agreed,
noting that forty percent of the
refrigerators sent to their recovery
facility were manufactured prior to 1993
and contain CFCs.
One commenter approves of the clear
signal that the rule sends for appliances
containing exempt refrigerants.
However, this commenter asks how a
recipient of a component of such an
appliance for disposal would be aware
that the subpart F requirements do not
apply to that component. EPA responds
that the only likely exempt refrigerant in
that scenario is a small appliance
containing a flammable refrigerant. As
required under the SNAP use
conditions, the component would have
markings such as red tubing or a
warning label that would distinguish
that component from other components.
The labels must be placed on the
outside of the appliance, on the inside
of the appliance near the compressor, on
or near any evaporators that can be
contacted by the consumer, near the
machine compartment, and near any
and all exposed refrigerant tubing.
3. Clarifications to the Existing Program
The safe disposal regulations require
actions of three separate groups of
people: The final processor, the supplier
of appliances for disposal, and the
person who recovers the refrigerant. The
final processor is the person who takes
the final step in the disposal process,
and refrigeration. The model uses information on
the market size and growth for each of the end-uses,
as well as a history and projections of the market
transition from ODS to alternatives. The model
tracks emissions of annual ‘‘vintages’’ of new
equipment that enter into operation by
incorporating information on estimates of the
quantity of equipment or products sold, serviced,
and retired or converted each year, and the quantity
of the compound required to manufacture, charge,
and/or maintain the equipment.
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typically a scrap recycler or landfill
operator. Final processors may receive
appliances with a charge or without a
charge. The supplier is the person
dropping off the appliance (or shipment
of appliances) for disposal. The person
who recovers the refrigerant may be the
final processor, the supplier, or a
separate third entity. EPA is finalizing
as proposed regulatory text to help
clarify the different actors.
Refrigerant may be recovered at any
stage in the disposal process, even prior
to the supplier taking possession. As
EPA stated in the 1993 Rule, ‘‘the
supplier to the final processor does not
have to remove the refrigerant but then
must assure, through an accompanying
certification, that refrigerant has been
removed earlier in the disposal chain.
Any copies of the certificate of removal
provided to the supplier could be
passed on to the final processor.’’ (58 FR
28704–28705). EPA’s intent has been to
provide the flexibility needed to permit
the recovery of refrigerant by the entity
in the disposal chain that can
accomplish that task most efficiently
while at the same time establishing a
mechanism to help ensure that the
refrigerant has not simply been illegally
vented. This flexibility is important for
the disposal sector, which is highly
diverse and decentralized. This signed
certification serves both goals.
EPA is revising the regulations to
clarify what must be in the contract
stating that refrigerant will be removed
prior to delivery. EPA is replacing the
word ‘‘remove’’ which appears
repeatedly in these provisions with
‘‘properly recover.’’ These revisions
clarify the provisions’ intent that the
refrigerant is recovered to the required
evacuation levels using the appropriate
equipment. EPA is also stating explicitly
that the contract should provide that the
supplier of the appliances is responsible
for recovering any remaining refrigerant
or verifying that the refrigerant has
already been evacuated. As discussed in
the 1993 Rule, the supplier to the final
processor does not have to remove the
refrigerant but must assure, through
accompanying certifications, that the
refrigerant has been removed earlier in
the disposal chain.
EPA notes here that a contract is
appropriate for businesses to streamline
transactions in cases where they
maintain long-standing business
relationships. A contract would be
entered into prior to the transaction,
such as during the set-up of a customer
account, not simultaneously with the
transaction. A signed statement is more
appropriate for one-off transactions
between the supplier and the final
processor.
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EPA is also clarifying the format that
the records required under this section
may take. In general, where the
regulations in subpart F require an
individual to maintain records, the
Agency intends for them to do so either
in an electronic or paper format,
preferably in an electronic system. EPA
is clarifying this point explicitly in the
recordkeeping provision at § 82.155(c).
One commenter stated that the new
§ 82.155 will remain unclear if EPA
does not review the relevant
applicability determinations for
potential inclusion in the regulatory
text. EPA responds that applicability
determinations are only applicable to
the person requesting the determination
from EPA. However, in response to the
comment, EPA has reviewed and is
incorporating information from specific
applicability determinations into the
regulatory text where the Agency finds
it will increase clarity to the industry as
a whole.
Two applicability determinations
address the situation where refrigerant
has leaked out of an appliance prior to
arriving at the final disposer.
Applicability determination number
608–8 addresses whether a verification
statement is needed where all of the
refrigerant has already leaked out due to
a break in the refrigerant circuit.
Applicability determination number
608–9 addresses whether the term
leaked out includes instances in which
the line has been cut prior to the
delivery of the appliance. EPA’s
determination in 1993 was that if all the
refrigerant has leaked out, the signed
statement need not contain the name
and address of the person who
performed the recovery as no such
person exists. The signed statement
must, however, clearly state that all the
refrigerant in the appliance had already
leaked out. EPA also determined that
‘‘leaked out’’ means those situations in
which the refrigerant has escaped
because of system failures, accidents, or
other unavoidable occurrences not
caused by a person’s deliberate acts or
negligence, such as deliberately cutting
refrigerant lines. Scrap processors may
accept appliances whose lines have
been cut as long as they obtain a signed
statement from the supplier. This
includes appliances that have been
vandalized. EPA is incorporating
information from these determinations
into the regulatory text at
§ 82.155(b)(2)(iii).
Two applicability determinations
address whether the verification
statements are needed for appliances
that arrive at the final processor in
various conditions. Applicability
determination number 608–8 pertains to
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the situation where the entire
refrigeration circuit has been removed
from the appliance prior to delivery.
Applicability determination number
C040001 pertains to (1) receipt of an
appliance in which some components of
the refrigerant circuit have been
removed; (2) receipt of portions of the
refrigerant circuit (e.g., compressor); (3)
receipt of an appliance in which the
entire refrigerant circuit has been
removed; and (4) receipt of an appliance
which has previously been through a
process in which refrigerant would have
been released or recovered.
EPA’s determinations in 1993 and
1996 were that the first two situations
would be subject to the safe disposal
regulations and the third and fourth
situations would not be. Any equipment
that contained refrigerant is subject to
the safe disposal requirements. This
includes a complete appliance with an
intact refrigerant circuit, an appliance
with a broken refrigerant circuit such as
one with a component removed, or a
single component that would contain
refrigerant in an appliance. In all such
instances the intent of the safe disposal
program—to verify that the refrigerant
was recovered properly—still applies.
Consistent with these determinations,
EPA interprets its regulations such that
items that have had the entire
refrigerant circuit removed, such as the
outer housing of an air conditioner or
the structural shell of a refrigerator, are
not subject to the safe disposal
regulations, as these items do not meet
the definition of appliance. Similarly,
shredded material, baled scrap, or
crushed cars are not subject to the safe
disposal regulations. The person
responsible for compliance with the safe
disposal regulations is the entity
upstream that conducted the final
processing where the appliance was
shredded, crushed, flattened, baled, or
otherwise demolished and where the
refrigerant would have been previously
recovered in accordance with the
regulations.
4. Hazardous Wastes
One commenter requested that EPA
exclude hydrocarbon refrigerants that
are vented from the definition of
hazardous waste. The commenter
reacted to a discussion in the proposed
rule that household appliances
containing a hydrocarbon refrigerant
would be exempt as a household
hazardous waste under the federal
hazardous waste regulations at 40 CFR
261.4(b)(1) (although States may have
more stringent regulations) and
therefore, could generally be vented
upon disposal under both RCRA and
CAA regulations. The commenter notes
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that a household-type appliance may
also originate from institutional and
commercial settings and therefore
would not qualify for the household
waste exclusion under RCRA.
EPA responds that these refrigerants
may be subject to regulation as
hazardous waste, with the exception of
refrigerants that are directly reused. The
Agency did not propose to amend the
regulations issued under RCRA in the
proposal to this final action and has not
undertaken the analysis to do so at this
time. This comment is also outside the
scope of this rulemaking, which relates
to regulations under section 608 of the
CAA, not to regulations under RCRA.
5. Restructuring and Edits for
Readability
EPA is creating a single section,
§ 82.155, for all safe disposal provisions,
including the recordkeeping and
reporting requirements. One commenter
supported moving the refrigerant
recovery requirements for small
appliances, MVACs, and MVAC-like
appliances into a single section. The
commenter suggested the section be
titled ‘‘Safe Disposal of Refrigerant’’
rather than ‘‘Safe Disposal of
Appliances’’ as they stated that the CAA
does not contain the concept of safe
disposal of appliances. While it is true
that section 608(c) is concerned with the
entry of refrigerants into the
environment, it addresses such releases
in the context of ‘‘disposing of an
appliance.’’ EPA disagrees that it is
necessary to change the name of the
section. However, EPA has reorganized
the section to put up front the general
requirement that refrigerant be
evacuated from appliances before
describing the requirements of the final
processor.
E. Revisions to the Evacuation
Requirements in § 82.156
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1. Background
Under EPA’s existing regulations at
§ 82.156(a), ODS refrigerant must be
transferred to a system receiver or to a
certified recovery and/or recycling
machine before appliances are opened
for maintenance, service, or repair. The
same requirement applies to appliances
that are to be disposed of, except for
small appliances, MVACs, and MVAClike appliances which were subject to
separate requirements under § 82.156(g)
and (h). To ensure that the maximum
amount of refrigerant is captured rather
than released, EPA requires that airconditioning and refrigeration
appliances be evacuated to specified
levels of vacuum.
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2. Extension to Substitute Refrigerants
EPA is finalizing revisions in this
action that extend the existing
requirements at § 82.156 to appliances
containing non-exempt substitute
refrigerants. Therefore, before
appliances containing non-exempt
substitute refrigerants are opened for
maintenance, service, or repair, the
refrigerant in either the entire appliance
or the affected part (when it can be
isolated) must be transferred to a system
receiver or to a certified recovery and/
or recycling machine. The same
requirements apply to appliances that
are to be disposed of, except for small
appliances, MVACs, and MVAC-like
appliances, which have separate
requirements.
Generally, commenters were
supportive of EPA’s proposal and agreed
with EPA’s rationale. Commenters who
stated that EPA does not have authority
to extend section 608 regulations to
substitutes were silent on the specific
issue of evacuation requirements. EPA
addresses general comments about its
authority for this action in Section III of
this notice.
i. Evacuation Levels for Appliances
Other Than Small Appliances, MVACs,
and MVAC-Like Appliances
EPA is finalizing revisions to
§ 82.156(a) such that appliances other
than small appliances, MVACs, and
MVAC-like appliances containing nonexempt substitute refrigerants must be
evacuated to the levels established for
CFCs and HCFCs with similar saturation
pressures. These levels are based on the
saturation pressures of the refrigerant,
which is a characteristic independent of
whether or not the refrigerant is an
ozone-depleting substance. As is the
case for CFCs and HCFCs, the
appropriate evacuation levels for HFCs
and other substitutes depends upon the
size of the appliance and the date of
manufacture of the recovery and/or
recycling equipment. EPA did not
receive comment expressing any
technical concerns with extending the
evacuation requirements to substitute
refrigerants. Some commenters stated
that they currently treat ODS and HFC
appliances in the same manner,
including the level of evacuation.
ii. Evacuation Levels for Small
Appliances
EPA is finalizing revisions to
§ 82.156(b) to establish the same
evacuation requirements for servicing
small appliances charged with nonexempt substitute refrigerants as had
previously existed only for small
appliances charged with ODS
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refrigerants. Technicians opening small
appliances for service, maintenance, or
repair are required to use equipment
certified either under appendix B, based
on AHRI 740, or under appendix C,
Method for Testing Recovery Devices for
Use with Small Appliances, to recover
the refrigerant.
Technicians using equipment
certified under appendix B have to pull
a four-inch vacuum. Technicians using
equipment certified under appendix C
have to capture 90 percent of the
refrigerant in the appliance if the
compressor is operational, and 80
percent of the refrigerant if the
compressor is not operational. Because
the percentage of refrigerant recovered
is very difficult to measure on any given
job, technicians would have to adhere to
the servicing procedure certified for that
recovery system under appendix C to
ensure that they achieve the required
recovery efficiencies.
One commenter specifically
expressed support for extending the
evacuation requirements to small
appliances charged with non-exempt
substitutes but not to small appliances
containing exempt refrigerants. The
commenter notes that the technician
would be required to use appropriately
certified equipment to recover the
refrigerant. EPA did not propose to
require the recovery of exempt
refrigerants and agrees that it would not
be appropriate to finalize such a
requirement in this rule, as the venting
prohibition does not apply to these
substances.
EPA is also revising § 82.156(b) to
establish the same evacuation
requirements for disposing of small
appliances that are charged with nonexempt substitute refrigerants as
currently exist for small appliances
charged with ODS refrigerants. Small
appliances must have 80 or 90 percent
of the refrigerant in them recovered
(depending on whether or not the
compressor was operational) or be
evacuated to four inches of mercury
vacuum.
EPA is also finalizing revisions to the
regulations to simplify the evacuation
requirements for small appliances so
that they are the same for both servicing
and disposal. This new provision
applies to both ODS and non-exempt
substitute refrigerants. Prior to this
rulemaking, a technician servicing a
small appliance containing an ODS
needed to only recover 80 percent of the
refrigerant when using recovery
equipment manufactured before
November 15, 1993. At the same time,
there was no established level of
evacuation in the disposal requirements
when using pre-1993 recovery
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equipment. EPA is allowing that 80
percent level of evacuation for disposal
to simplify and unify the requirements.
This revision will have minimal effect
as few people continue to use recovery
equipment manufactured prior to that
date.
One commenter stated that there
should not continue to be separate
evacuation levels for recovery
equipment manufactured before 1993.
This commenter saw such equipment
being used only rarely and only to avoid
the deeper evacuation requirements.
This commenter also stated that pulling
a 4-inch vacuum on a small appliance
is not equal to 80 percent refrigerant
recovery. EPA responds that the
proposal explicitly stated that EPA was
not proposing to amend the required
levels of evacuation in Table 1, change
the circumstances that would allow for
alternate evacuation levels, or to revise
those alternate levels. EPA understands
the concerns raised by the commenter,
but removing the older evacuation
levels at this time is beyond the scope
of this rulemaking.
iii. Evacuation Levels for MVACs and
MVAC-Like Appliances
Technicians repairing or servicing
MVACs for consideration and MVAClike appliances containing an ODS or a
non-exempt substitute refrigerant are
subject to the requirement to ‘‘properly
use’’ (as defined at § 82.32(e)) servicing
equipment approved pursuant to
§ 82.36(a). All persons recovering
refrigerant from MVACs and MVAC-like
appliances for purposes of disposal of
these appliances must reduce the
system pressure to or below 102 mm of
mercury vacuum or use refrigerant
recycling equipment dedicated for use
with MVAC and MVAC-like appliances
approved pursuant to § 82.36(a). The
proposed rule incorrectly extended the
MVAC servicing requirement to all
persons, not just those servicing MVACs
for consideration. EPA has revised the
final rule to properly distinguish
between the two.
EPA received a comment that section
608 of the CAA does not apply to
MVACs. As discussed above in Section
III of this notice, section 608(c) provides
EPA authority to regulate the disposal of
MVACs, which are a type of appliance.
With respect to disposal of MVACs, this
final rule, like the prior regulations,
only specifies evacuation levels for such
appliances when they are disposed.
3. Records for Disposal of Appliances
With a Charge of More Than 5 and Less
Than 50 Pounds
EPA is adding new recordkeeping
requirements at § 82.156(a)(3) for the
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disposal of appliances with a full charge
of more than five and less than 50
pounds of either ODS or non-exempt
substitute refrigerant. Most appliances
this size are disassembled in the field
and as such must have the refrigerant
recovered in the field. EPA is requiring
records that document the name of the
company that employs the technician,
the location of the appliance being
disposed of, the date of recovery, and
the type of refrigerant removed from
each appliance prior to disposal. The
technician who evacuated the
refrigerant, or the company employing
that technician, must also maintain
records indicating the quantity and type
of refrigerant transferred for
reclamation, the company that they
transferred the gas to, and the date of
the transfer. The technician, or the
company employing the technician,
would be required to maintain these
records for three years. By company
employing the technician, EPA means
the person paying the technician’s
salary or wage, not the appliance owner
or operator who has hired the
technician for that specific service. The
finalized regulations have one change
compared to the proposal: EPA is not
requiring records indicating the amount
and type of refrigerant recovered from
each separate appliance but rather the
total amount and types recovered from
all appliances disposed of in each
calendar month. As described in more
detail below, this modification from the
proposed revision was made after
consideration of public comments.
Comments in support of this proposed
recordkeeping requirement agreed with
EPA’s goal of improving the
enforceability of the venting
prohibition. One commenter stated that
EPA’s rationale to improve compliance
with the venting prohibition and
facilitate enforcement against those who
do vent is insufficient and not
adequately supported in the record.
Another commenter believes that
venting is not as prevalent as EPA
thinks it is and that to the extent that
it does occur, it is done by individuals
who are not certified technicians.
EPA responds that the Agency has
heard from people throughout the
HVAC/R industry that venting regularly
happens in appliances with more than
5 and less than 50 pounds of refrigerant.
One commenter to this rule who
regularly addresses contractor and
service technician groups hears from
them that the venting prohibition is
widely disregarded. At a recent meeting
EPA attended with air-conditioning and
refrigeration contractors, an industry
speaker asked attendees what
percentage of technicians recover
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refrigerant. The estimates individuals
offered were generally between 10 to 30
percent, with the caveat that recovery is
much more common in the refrigeration
industry than the air-conditioning
industry. EPA also receives numerous
tips each year of someone cutting
refrigerant lines to quickly and illegally
dispose of appliances of this size. This
feedback indicates a likelihood that
venting regularly occurs.
At times, including in public fora
such as the public meeting in November
2014, stakeholders have requested that
EPA increase enforcement of the venting
prohibition. At that meeting, some
stakeholders indicated that technicians
will knowingly and illegally vent
refrigerant if they think EPA will not
bring an enforcement action. Multiple
commenters urged the Agency to do a
better job of enforcing the venting
prohibition. This request came from a
broad cross section of the air
conditioning and refrigeration
community including refrigerant
reclaimers, recycling and recovery
equipment certifiers, and appliance
manufacturers and distributors. Some of
these comments stated that good actors
who comply with the law are placed at
a competitive disadvantage by entities
who can operate more cheaply by
skipping the required recovery practices
and choose instead to illegally vent
refrigerant.
The Agency has recently brought
successful cases against individuals
who have illegally vented refrigerant.
However, the availability of the records
required under this provision would
enhance the Agency’s ability to enforce
the venting prohibition because these
records could be used to demonstrate
whether or not refrigerant has been
recovered and sent for reclamation. If
refrigerant cannot be accounted for, a
company or technician may not be able
to show that they complied with the
venting prohibition.
Some commenters who objected to
this proposal stated that EPA did not
provide sufficient justification and that
EPA underestimated the burden to
technicians. EPA responds that it is
reasonable to require technicians and
the companies employing technicians to
maintain records of the amount of
refrigerant that they recover and send
for reclamation to enhance compliance
with and enforceability of the venting
prohibition. There is a significant
environmental benefit to ensuring that
ODS and HFC refrigerant are recovered
from existing appliances of this size at
the time of disposal. Using EPA’s
Vintaging Model, EPA estimated the
number of appliances in this size
category that are disposed of annually,
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the full charge of those appliances, and
the type of refrigerant they contain. EPA
estimates that 7.3 million appliances of
this size, with a total charge of 27,300
MT of refrigerant, are disposed of
annually. This is equal to 960 ODPweighted metric tons and 49.5
MMTCO2eq. This represents 45 percent
of the total amount of ODS and HFC
refrigerants contained within all
appliances from all size categories that
are disposed of annually.
EPA’s benefits assessment for the
proposed rule did not calculate any
additional emissions reductions because
the existing regulations already require
recovery when appliances are disposed.
However, in practical terms, requiring a
record from each disposal event may
drive more technicians to comply with
the venting prohibition because the
recordkeeping requirement places extra
emphasis on the prohibition and on the
risks of violating it. Even slight
improvements to compliance could
produce substantial environmental
benefits.
Another commenter stated that some
IPR facilities may have hundreds or
even a thousand of these smaller 5–50
pound appliances and that requiring
additional tracking or recordkeeping
would be unnecessary and overly
burdensome. Furthermore, the
commenter continued, because industry
has the burden of proof that it is in
compliance with the venting
prohibition, industry has established
basic recordkeeping that can meet the
intent of this rule without requiring
additional or duplicative information. A
couple of commenters similarly noted
that it is good business practice to
recover refrigerant from such units prior
to disposal.
EPA responds that the incentive to
illegally vent may be less if the owner
has hundreds of appliances or uses inhouse technicians. In that situation, it
may be good business practice to
recover refrigerant from a system being
disposed of because that refrigerant can
be reused in that owner’s other
appliances. The desire to fit more
service calls into a day is also perhaps
less when using in-house personnel.
However, in cases where a technician is
getting paid by the job, there is an
economic incentive to minimize the
time spent at each job-site which could
include venting refrigerant. EPA
disagrees that such facilities will require
burdensome new tracking and
recordkeeping. While a facility may
have many appliances, the records that
EPA is requiring in this rule are only
necessary once—upon disposal—and
only a small subset of the total number
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of appliances is likely to be disposed of
in a given year.
EPA has considered ways to minimize
the burden to technicians in light of
commenters’ concerns. EPA is
modifying the final rule so as to require
records that are generated through
normal operations in the field.
Therefore, EPA is removing the
requirement to determine the amount of
refrigerant recovered from each
appliance. Entities would not be
required to weigh cylinders or otherwise
calculate how much refrigerant they
recovered at each and every site, which
was the most time consuming element
of the proposed recordkeeping
requirements. Instead, EPA’s goals can
be achieved by requiring records of the
amount recovered in each calendar
month. This way, recovery cylinders
can be weighed less frequently and at a
centralized location or recovery
cylinders can simply be tallied if the
amount of refrigerant in them is known.
One commenter encouraged EPA to
consider exempting residential systems
from the recordkeeping requirements
due to the nature of their servicing. EPA
responds that this recordkeeping
requirement does not apply to regular
servicing, only disposal, which occurs
much less frequently.
A couple of commenters requested
clarification of who must maintain
records. One commenter did not
support this requirement because they
believed it would require records be
kept by homeowners. Another
commenter suggested that third-party
collection sites not have recordkeeping
requirements so as to not discourage
wholesalers and storefronts from serving
in the collection chain.
EPA responds that the recordkeeping
requirements finalized for this provision
apply solely to the company employing
the technician (or to the technician, if
operating independently) who is
disposing of the appliance in both
commercial and residential settings.
This could be the owner or operator of
the appliances or it could be a
contractor who is hired to dispose of the
appliance. When that company transfers
the refrigerant for reclamation they may
have to receive records from other
entities (such as reclaimers or thirdparty collection sites) but those
receiving refrigerant are not obligated to
maintain any records themselves. EPA
is not requiring any recordkeeping by
the owners of the appliance unless the
owner of the appliance and the
employer of the technician are the same
entity.
One commenter suggested that EPA
extend the proposed recordkeeping
requirements to those who collect at
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least 100 pounds of refrigerant per year
from small appliances. This commenter
also suggested less detailed records be
kept in such instance, specifically (1)
the quantity of refrigerant recovered
monthly, (2) the number of units
disposed of, and (3) the name of the
certified reclaimer to whom they
transferred the recovered refrigerant.
EPA disagrees that extending this
requirement to small appliances is
necessary. Certification and
recordkeeping requirements currently
exist for the disposal of small
appliances. These records are held by
the final disposer, who is best suited to
maintain them. In addition, EPA does
not require that small appliances be
evacuated by a certified technician
when being disposed of.
Two commenters suggested that EPA
extend the recordkeeping requirement
to appliances containing more than 50
pounds as well. One of the commenters
was concerned that contractors who
collect from both smaller 5–50 pound
and larger 50-plus pound appliances
would have to separate or otherwise
distinguish between what was recovered
from each when transferring their
refrigerant to a reclaimer. EPA finds that
it would not be necessary to distinguish
between these two size categories. A
single record of all refrigerant
transferred for reclamation is sufficient
because EPA is not requiring an
accounting of all recovered refrigerant
as it moves through the market.
After consideration of these
comments, EPA is requiring records that
are regularly generated by technicians or
companies recovering refrigerant while
disposing of appliances as a practical
way to improve the Agency’s ability to
enforce the venting prohibition without
imposing an undue burden on regulated
entities that are already complying fully
with the venting prohibition. To avoid
imposing an undue burden on good
actors, especially out in the field where
there may already be pressure to cut
corners, EPA is not finalizing the
proposed requirement that records be
kept of how much refrigerant is
recovered from each appliance.
Weighing or otherwise calculating the
amount of refrigerant recovered at each
job site could increase burden of these
requirements by consuming additional
time.
4. Clarifications and Edits for
Readability
As proposed, EPA is moving the
provisions that were found in § 82.156
‘‘Required Practices’’ in the prior rules
into three separate sections: § 82.155 to
address the safe disposal of small
appliances, MVACs, and MVAC-like
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appliances; § 82.157 to address
appliance maintenance and leak repair
for appliances containing 50 or more
pounds of refrigerant; and § 82.156 to
address the proper evacuation of
refrigerant from appliances. These
provisions tend to affect different
stakeholders so separating them into
different sections will make the required
provisions easier to find.
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F. Revisions to the Leak Repair
Requirements in § 82.157
1. Background
A central component of EPA’s
longstanding program to properly
manage ODS refrigerants is the
requirement to repair leaking appliances
within 30 days of determining that a
certain leak rate has been exceeded.
Owners and operators of appliances
normally containing 50 or more pounds
of ODS refrigerant must repair their
appliances if they leak above a certain
rate or take other actions to reduce the
emissions such as retrofitting, retiring,
or mothballing the appliance. Under the
prior regulations, the leak rate at or
above which action was required was 35
percent for commercial refrigeration
appliances and IPR and 15 percent for
comfort cooling and other appliances. If
the attempt to repair failed to bring the
appliance’s leak rate below the
applicable leak rate within that time
frame, the owner or operator must
develop a retrofit or retirement plan and
implement it within one year of the
plan’s date. Owners or operators also
had the option of developing a retrofit
or retirement plan within thirty days of
identifying that the leak rate has been
exceeded. Owners or operators of IPR or
federally owned appliances may have
more than 30 days to complete repairs
and more than one year to retrofit
appliances where certain conditions
applied (e.g., equipment located in areas
subject to radiological contamination,
unavailability of necessary parts, and
adherence to local or state laws that may
hinder immediate repairs). The full
suite of the prior requirements are found
at § 82.156(i).
EPA recognizes that refrigeration and
air-conditioning equipment often do
leak. This is particularly likely for larger
and more complicated appliances like
those subject to the subpart F leak repair
provisions. However, leaks from such
appliances can be significantly reduced.
Multiple factors support this
conclusion. Concrete evidence that
leaks can be significantly reduced
include experience with the GreenChill
program, an EPA partnership designed
to encourage supermarkets to reduce
emissions of refrigerants and transition
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to low-GWP and low-charge
refrigeration appliances; reports from
facilities regulated under California’s
Refrigerant Management Program; and
feedback from stakeholders prior to
publishing the proposed rule. The
revised leak repair provisions in this
action will reduce refrigerant releases of
ODS and non-exempt substitute
refrigerants by ensuring effective repairs
and ongoing monitoring of leaking
systems.
2. Restructuring and Edits for
Readability
The regulatory text has been modified
several times since EPA first established
the program in 1993. The regulation
now contains numerous cross-references
to other provisions in § 82.156(i),
making the requirements difficult to
follow and in some places potentially
leading to differing interpretations.
Many important provisions are not
readily apparent, such as the primary
requirement that repairs must occur
within 30 days, which appears
explicitly only at the end of the leak
repair requirements at § 82.156(i)(9).
Therefore, EPA has rewritten the
regulation and moved the provisions to
a single new section of the Code of
Federal Regulations (CFR) to make it
easier for stakeholders to locate and
understand the requirements.
EPA recognizes that changing the text
so significantly may make stakeholders
who are familiar with the existing
requirements wonder how these
revisions affect their current compliance
monitoring systems and protocols. EPA
emphasizes that the Agency did not
intend to alter the substance of the
requirements while restructuring except
where specified. EPA discusses the
intended amendments to the
requirements in this section of the
notice. In general, commenters were
supportive of EPA’s efforts to rewrite
and simplify the leak repair provisions.
To avoid both ambiguity and
cumbersome language throughout, EPA
establishes from the outset in § 82.157(a)
that the provisions of § 82.157 apply to
owners and operators of all appliances
containing 50 or more pounds of
refrigerant, unless otherwise specified.
One commenter stated that EPA should
clarify throughout the rule whether the
owner/operator or the technician is
responsible. EPA responds that the final
rule makes clearer that the owner or
operator is responsible for conducting
the leak inspection or repairing the
appliance even when it is the technician
who will be performing those actions.
When a provision applies to technicians
or people servicing equipment, the
provision so specifies.
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Multiple commenters requested that
EPA define owner/operator and one
commenter requested that EPA clarify
who is responsible if the owner is
different from the operator. EPA
responds that the Agency is not defining
owner or operator because these terms
are widely understood in the public and
regulated community. If the owner and
the operator are separate entities, both
are responsible for complying with the
applicable leak repair provisions. EPA
notes that the owner of the system
chooses the operator of the system, or
passes that responsibility to someone
else (e.g., a tenant in a building may be
provided authority to operate an air
conditioning system even though that
tenant does not own the building or the
air conditioning system). EPA does not
want to hinder the ability of the owner
and operator of the system to make the
decision as to who would be responsible
for complying with these requirements,
and, therefore, the Agency has
maintained the existing language that
places responsibility for such
compliance with requirements on both
parties.
The existing regulations also
inconsistently described the leak repair
requirements as applying to appliances
with ‘‘50 or more pounds’’ or ‘‘more
than 50 pounds’’ of refrigerant. The
proposed revisions consistently use ‘‘50
or more pounds of refrigerant.’’ EPA
received a comment from CARB that the
California regulations are based on
EPA’s ‘‘more than 50 pounds,’’ but
CARB stated they can address any
potential inconsistencies created by this
revision. As such, EPA is finalizing
consistent use of the phrase ‘‘50 or more
pounds of refrigerant’’ in the revised
regulations.
3. Extension to Substitute Refrigerants
EPA proposed to extend the leak
repair provisions previously found at
§ 82.156(i) to appliances containing
non-exempt substitute refrigerants. EPA
is finalizing this extension in the
revised leak repair regulations (now
found at § 82.157). As such, the other
provisions related to leak repair and
maintenance finalized in this rule (e.g.,
verification tests, reporting by chronic
leakers, etc.) apply to appliances
containing ODS and non-exempt
substitute refrigerants as well.
Consistent with discussions elsewhere
in this notice, EPA is not extending
these requirements to appliances using
substitute refrigerants in a specific enduse for which the substitute refrigerant
used has been exempted from the
venting prohibition. These exemptions
are listed in the regulations at
§ 82.154(a)(1). For example, these
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requirements would not be extended to
water in any application, or to ammonia
in commercial or industrial process
refrigeration or in absorption units.
Extending the leak repair
requirements to non-exempt substitute
refrigerants will lead to significant
environmental benefits because these
substances pose a threat to the
environment when released. Like ODS,
HFCs and PFCs also have the ability to
trap heat that would otherwise be
radiated from the Earth back to space.
This ability gives both HFCs and PFCs
relatively high GWPs. The 100-year
GWPs of saturated HFCs used as
refrigerants range from 124 (for HFC152a) to 14,800 (for HFC–23), and the
GWPs of PFCs used as refrigerants range
from 7,390 (for PFC–14) and higher.
HFC–134a, the most common individual
HFC used in air-conditioning and
refrigeration equipment, has a GWP of
1,430. See Section II.C.2 of this notice
for further discussion related to the
environmental effects of greenhouse
gases.
In determining whether to exempt
HFC and PFC refrigerants from the
venting prohibition in 2004, EPA
examined the potential effects of the
refrigerant from the moment of release
to its breakdown in the environment,
considering possible effects on workers,
building occupants, and the
environment. EPA concluded that the
release of HFCs and PFCs poses a threat
to the environment due to their high
GWPs. For that reason, and because of
a lack of regulation governing the
release of such refrigerants, EPA did not
exempt the release of HFC or PFC
refrigerants from the statutory venting
prohibition. Therefore, knowingly
venting or otherwise releasing into the
environment of HFC and PFC
refrigerants during the maintenance,
service, repair, or disposal of appliances
remains illegal. The venting prohibition
focuses on knowing venting or release
during the maintenance, service, repair,
or disposal of appliances and thus does
not account for all HFC (and PFC)
refrigerant emissions. For instance, in
previous rules we have not assumed
that emissions of HFCs that occur due
to appliance leaks constitute knowing
releases. However, as discussed
elsewhere in this rulemaking, EPA is
broadening its interpretation of what is
considered a knowing release under
section 608(c) for purposes of appliance
leaks. In addition, the requirements to
calculate leak rates and monitor leaking
systems that EPA is finalizing in this
action provide knowledge to appliance
owners and operators and thereby
broaden the set of refrigerant releases for
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which they would be liable for a
knowing release.
Consideration of Costs
Based on the evidence discussed later,
the reported leak rate performance of
today’s comfort cooling, commercial
refrigeration, and IPR appliances with
full charges of 50 or more pounds argues
for lowering the leak rates. The evidence
discussed later demonstrates that the
leak rates of 35 percent for IPR and
commercial refrigeration and 15 percent
for comfort cooling are considerably
above the ‘‘lowest achievable level of
emissions’’ envisioned in CAA section
608(a)(3)(A).
While section 608(a)(3) does not
require EPA to perform a cost-benefit
analysis to determine what leak rate(s)
would constitute the ‘‘lowest achievable
level of emissions,’’ in general, EPA has
balanced the benefits from reducing
emissions of refrigerants with the costs
of these requirements. EPA has
determined that the costs are reasonable
given the significant benefits that accrue
(both private in the form of cost savings
and public in the form of improved
health and environmental protection
from reduced GHG and ODS emissions).
Specifically, EPA reviewed data from
the lowest-emitting equipment to gauge
technological feasibility and then
reviewed other datasets, such as CARB
data and consent decree requirements,
to determine a reasonable set of
requirements. EPA then assessed the
costs and benefits associated with
extending the existing requirements to
appliances using substitute refrigerants.
EPA also assessed the tighter
requirements applicable to appliances
containing ODS or non-exempt
substitute refrigerants such as lower
leak rates, the requirement to repair
leaks once the applicable leak rate is
exceeded, the requirement to conduct
verification tests on all types of
appliances, and periodic leak
inspections for appliances that had
exceeded the leak rates.
Based on the comments received, EPA
considered ways to reduce the cost of
these requirements, as compared to the
proposal. These changes are discussed
in full later in this section and include:
Limiting periodic leak inspections to
appliances that have exceeded the
applicable leak rate, rather than
requiring all appliances to be inspected;
finalizing a leak rate for IPR of 30
percent rather than 20 percent; allowing
greater flexibility for owners and
operators to determine which leaks to
repair rather than requiring the repair of
all leaks; and modifying the proposed
chronic leaker provision so that it
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results in reporting to EPA rather than
automatic retirement of the appliance.
This rule also provides flexibility that
will reduce the cost of complying with
the existing regulations. For comfort
cooling and commercial refrigeration
appliances, EPA is allowing an
extension to the 30-day repair
requirement if the arrival of a part is
delayed, recognizing that the short
additional time needed for delivery of a
part can result in a nearer-term and less
costly emission reduction than a retrofit.
EPA is also allowing an extension to
implement a retrofit or retirement for
any appliance that transitions to a nonexempt substitute refrigerant.
4. Leak Inspections
The prior regulations at § 82.156(i)
focused on actions an appliance owner
or operator must take after discovering
an appliance has a leak. EPA proposed
to require annual or quarterly leak
inspections as a proactive maintenance
practice depending on the type and size
of the appliance. More specifically, EPA
proposed to require that owners or
operators of commercial refrigeration
appliances or IPR normally containing
500 or more pounds of refrigerant
conduct quarterly leak inspections of
the appliance, including the appliance’s
refrigerant circuit. Inspections would be
annual for commercial refrigeration
appliances and IPR containing 50
pounds or more but less than 500
pounds of refrigerant, as well as comfort
cooling appliances and other appliances
normally containing 50 or more pounds
of refrigerant.
The purpose of the proposed leak
inspection requirement was to
determine the location of refrigerant
leaks. This proposal was designed with
Next Generation Compliance objectives
in mind (see Section II.D.3). The Agency
anticipated that many appliance owners
and operators would take action earlier
if leaks were identified because it is in
their financial interest to do so and
would reduce emissions and refrigerant
costs. Repairing leaks earlier could also
prevent that appliance from being
pulled into the proposed regulatory
requirements at § 82.157 for exceeding
the applicable leak rate. EPA also
proposed to allow owners or operators
to forgo periodic leak inspections if they
installed and operated an automatic leak
detection system that continuously
monitors the appliance for leaks.
Frequency of Leak Inspections. State
regulatory agencies and environmental
organizations supported the proposed
requirement to conduct periodic leak
inspections. Two such commenters
suggested that EPA require quarterly
leak inspections for systems with 200
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pounds or more to harmonize the leak
inspection requirements with
California’s Refrigerant Management
Program. However, many other
commenters expressed strong
opposition to mandatory quarterly or
annual leak inspections, asserting that
requiring inspections of all appliances
imposes unnecessary costs, especially
for systems that are not leaking. Those
commenters estimated the cost of an
inspection for a large supermarket could
exceed $5,000. Another commenter
stated that companies do not need a
regulatory requirement to inspect and
maintain their refrigeration equipment
and that since EPA did not require
repair of leaks identified in a leak
inspection for appliances that do not
exceed the applicable leak rate, there is
not a reasonable relationship between
the proposed requirement and the goal
of emissions reduction. One commenter
stated that leak inspections are
unnecessary, at least for chemical
manufacturing, because temperatures
and pressures must be maintained
within tight tolerances for reactions to
proceed. Furthermore, any changes in
temperature and pressure would trigger
an alarm or shutdown the process.
Other commenters expressed
qualified support for annual leak
inspections, especially if it is phased in,
starting with larger systems or if a
company can provide evidence that they
have not added refrigerant to a system
in over a year. Another commenter
stated that leak inspections should only
be annual, unless the equipment
exceeds the applicable leak rate for that
system. That commenter believes that
the inspections should return to being
an annual requirement after the leak rate
has been reduced below the threshold
for two years. One commenter stated
that the greatest value of a leak
inspection is on a system with a known
leak.
Based on these comments relating to
the expense and value of conducting
leak inspections on all appliances, EPA
is finalizing the leak inspection
requirement only for appliances that
have been found to be above the
applicable leak rate. EPA proposed to
only require that the leaks identified
from a leak inspection be repaired when
the applicable leak rate is exceeded.
EPA’s proposal observed that the costs
of repairing all leaks when the leak rate
is below the applicable leak rate may be
higher than the benefits, especially
when the leak is a series of small
pinhole leaks and the leak rate is very
low, as may often be the case. As stated
in the proposed rule, when the
applicable leak rate is exceeded, the
benefits of repairing those leaks are
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significant—both for the environment
and for the owner/operator (in
decreased refrigerant replacement
costs)—and do result in significant
savings, which supports repair of leaks.
EPA appreciates the concern raised by
commenters who question the value of
conducting leak inspections on
appliances that are known to not be
leaking, or leaking at a low rate that
would not trigger a requirement for
repair under the regulations. Periodic
leak inspections are a best practice
within the industry to reduce emissions
of refrigerants and the Agency continues
to recommend periodic leak inspections
for all appliances as even wellmaintained appliances might leak.21
EPA did not quantify any benefits for
systems that had a leak rate below the
applicable leak rate because the Agency
did not propose that the leaks that were
discovered in those systems needed to
be repaired. While requiring proactive
leak inspections would generally reduce
leaks because companies would find
leaks and could repair them before the
applicable leak rate was exceeded, EPA
is not finalizing the periodic leak
inspections for all appliances, as
proposed. Many of the specific
comments about timing of leak
inspections no longer apply because of
this change. However, EPA has
reconsidered the cost of conducting a
leak inspection, as discussed further in
Section VI of the preamble.
EPA is finalizing a requirement at
§ 82.157(d)(1) to conduct a leak
inspection after discovering the leak rate
had exceeded the applicable leak rate.
Thereafter, EPA is requiring episodic
leak inspections based on the full charge
size and type of appliance on the same
schedule as in the proposed
§ 82.157(b)(1)–(3), but in this final rule
EPA added a provision clarifying that
this requirement ends if the appliance
remains below the applicable leak rate
for a specific time. More specifically,
following a leak rate exceedance, EPA is
requiring quarterly leak inspections for
IPR and commercial refrigeration
appliances containing 500 or more
pounds of refrigerant until there are four
quarters in a row where the appliance
has not exceeded the applicable leak
rate. For IPR and commercial
refrigeration appliances containing
between 50 and 500 pounds of
refrigerant, and for all comfort cooling
appliances or other remaining
appliances normally containing 50 or
more pounds of refrigerant, EPA is
21 See GreenChill’s Best Practices Guidelines:
Commercial Refrigeration Leak Prevention &
Repairs, May 2011, available in the docket for this
rulemaking.
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requiring annual leak inspections
following a leak rate exceedance until
the owner or operator can demonstrate
that the appliance has not exceeded the
applicable leak rate for one year. More
frequent monitoring is important for
larger commercial refrigeration
appliances and IPR because those
systems tend to have more leaks than
comfort cooling appliances and because
the amount of refrigerant that would be
lost in a leak is generally greater for
those systems.
In our view, and based on our review
of comments, limiting inspections to
those appliances that are known to have
leaked and triggered the repair
requirements appropriately tailors the
leak inspection requirement to those
systems that are most likely to leak and
provides important information about
whether the leak repairs have held over
the longer term. EPA is not finalizing
the proposed revision allowing for
annual leak inspections when
refrigerant has not been added to the
appliance for more than a year as EPA
is not finalizing the periodic leak
inspection requirement for systems that
are below the applicable leak threshold.
As discussed later, EPA is finalizing the
proposed revision allowing the use of
automatic leak detection systems in lieu
of quarterly or annual leak inspections.
EPA proposed to establish a process
that would allow less frequent leak
inspections for federally owned
appliances that are located in remote
locations or are otherwise difficult to
access for routine maintenance. One
commenter disagreed with the proposal
to allow a reduced inspection schedule
for federally owned appliances. Other
commenters requested that EPA provide
a similar exemption to privately owned
appliances.
Because EPA is not finalizing periodic
leak inspections for appliances below
the applicable leak threshold, EPA is
also not finalizing the reduced leak
inspection schedule for federally owned
appliances. EPA is requiring that
federally owned equipment that has
leaked in excess of the applicable leak
rate be subject to the same periodic leak
inspection schedule as privately owned
equipment. The concerns about burden
raised by federal agencies during the
development of the proposal are
addressed by removing the proposed
requirement that leak inspections be
conducted on all appliances. The
number of appliances leaking above the
final leak thresholds is less than 20
percent of the total number of installed
appliances with charges of 50 pounds or
greater.
Description of leak inspections. Many
commenters requested clarification
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about the types of methods that can be
used to conduct a leak inspection. EPA
responds to those comments in the
section of this notice that addresses
comments on the proposed definitions.
As described there, the revised
definition includes examples of
methods that may be appropriate for
leak inspections.
EPA proposed that periodic leak
inspections would not need to be
performed by certified technicians and
took comment on that idea. Two
commenters agreed that leak inspections
should not be required to be conducted
by certified technicians. Reasons stated
for not requiring the inspection to be
done by a certified technician are that
they are more expensive than in-house
personnel, they may be less familiar
with the appliance, and that the person
doing the inspection will not
necessarily be performing activities that
can only be performed by a certified
technician such as adding or removing
refrigerant or making any repairs to the
appliance. Another commenter believes
that leak inspections should be
performed by someone trained to fix
leaks, and thus that the persons
performing leak inspections must be a
certified technician.
In this final rule, EPA is requiring that
the required leak inspections be
performed by certified technicians. EPA
is making this change from the proposal
for several reasons. First, required leak
inspections are now limited to
appliances that are known to have been
leaking. It is now very likely that a
technician will have to add refrigerant
or make additional repairs after the leak
inspection. This is certainly the case for
the inspection triggered by discovering
that the leak rate exceeds the threshold.
Second, because EPA is no longer
requiring the repair of all identified
leaks, the person inspecting the system
must also be qualified to determine
which leaks must be repaired to bring
the leak rate below the applicable level.
Third, while certified technicians may
be more expensive to hire, the overall
burden of the leak inspection
requirement is less since many fewer
appliances must be inspected than
originally proposed. Under the
proposal, all appliances of a certain size
would require leak inspections, which
EPA estimated to be approximately 1.5
million. Under the finalized provisions,
that number drops to approximately
282,000 appliances. EPA has considered
the comments about the cost of
performing a leak inspection and has
updated the technical support
document accordingly. Finally, EPA is
not specifying a single method but
rather allowing the person conducting
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the inspection to determine the
method(s) that are appropriate for that
appliance. This technical judgment
requires someone trained in the
methods of leak detection, which is
more likely to be the case for a certified
technician.
Many commenters requested
clarification on what portions of an
appliance are subject to a leak
inspection. The proposed regulatory text
was silent on this issue but the notice
of proposed rulemaking discussed
inspecting visible components and the
proposed definition of leak inspection
included an examination of ‘‘all visible
components of an appliance.’’ The
proposal did not define ‘‘visible’’ or
address the treatment of components
that are only visible if intermediary
steps are taken (e.g., clearing ice or
elevating monitoring personnel).
Commenters noted that refrigerant lines
may be insulated and thus the piping is
not visible and that lines may run along
the ceiling of a store and are not
observable or are difficult to access. One
commenter proposed a definition that
would limit inspections to areas that are
visible and accessible without the use of
equipment. The commenter states that
the vast majority of components in
commercial refrigeration, and those
most prone to refrigerant leakage, are
accessible directly from floor or roof
level. One commenter requested that
EPA define visible components as those
that are readily accessible to be viewed
and accessed during normal
preventative maintenance activities for
the appliance. One commenter
suggested that the leak inspection be
‘‘consistent with good industry
practice.’’ Another commenter
expressed concern that requiring the
inspection of all visible components
may necessitate the appliance be shut
down.
Another commenter requested
specific exceptions for components that
are difficult to monitor, insulated,
unsafe to monitor, or otherwise not
accessible. Consistent with other leak
detection and repair programs for New
Source Performance Standards,
Subparts VV and VVa, which relates to
equipment leaks of VOC in synthetic
organic chemicals manufacturing, the
commenter suggests that the following
sources be exempt from inspection: (1)
Components that require monitoring
personnel to be elevated more than 2
meters above a support surface; (2)
components that are insulated; (3)
components that are determined to be
un-safe to monitor as determined by site
personnel; (4) components that are
under ‘‘ice’’ that forms on the outside of
equipment. A couple of commenters
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also expressed concern about requiring
leak inspections on equipment that
cannot be accessed due to radiological
concerns.
EPA appreciates the difficulties
associated with inspecting the entirety
of an appliance, which these comments
illustrate. EPA proposed a definition of
leak inspection that includes ‘‘all visible
components.’’ EPA is modifying that
proposed definition to remove the
reference to ‘‘all visible components.’’
Also, in light of the points raised in the
comments, EPA is clarifying in the final
rule that a leak inspection must be
conducted on all visible and accessible
components of an appliance, with some
exceptions. EPA did not propose any
exceptions but did state in the notice of
proposed rulemaking that the inspection
should occur on all visible and
accessible components of an appliance.
The exceptions finalized in this
rulemaking clarify what is not
considered visible or accessible: 1)
Where components are insulated, under
ice that has formed on the outside of
equipment, underground, behind walls,
or are otherwise inaccessible; (2) where
personnel must be elevated more than 2
meters above a support surface; or (3)
where components are unsafe to
inspect, as determined by site
personnel. This clarification takes into
consideration risks to the person
conducting the inspection. The Agency
does not expect that an appliance be
shut down in order to fulfill the
obligation of inspecting all visible
components.
Automatic Leak Detection. EPA
proposed to not require periodic leak
inspections if owners or operators
install and operate an automatic leak
detection system that continuously
monitors the appliance for leaks.
Although EPA is removing the periodic
leak inspection requirements for many
appliances, EPA will continue to allow
the use of automatic leak detection
equipment to continuously monitor
whole appliances or portions of
appliances in lieu of the required
periodic inspections for that appliance
or that portion of the appliance. Use of
such equipment can minimize releases
of refrigerant because it discovers leaks
sooner than a quarterly or annual leak
inspection can. Using their 2014
Refrigerant Management Program (RMP)
data, CARB commented that they found
that leaking systems using automatic
leak detection had a 25 percent lower
annual leak rate than those without.
This comment provides further support
for including this option to use
automatic leak detection equipment to
continuously monitor an appliance or
portion of an appliance in the final rule.
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A few commenters encouraged EPA to
require automatic leak detection
equipment on appliances with more
than 2,000 pounds of refrigerant to
harmonize EPA’s requirements with
California’s. EPA responds that while
this rule does not impose requirements
that are inconsistent with CARB’s
program, EPA has not included all of
CARB’s requirements in this rule. EPA
is requiring that automatic leak
detection systems meet the same level of
detection (10 parts per million of vapor)
and notification thresholds (100 parts
per million of vapor, a loss of 50 pounds
of refrigerant, or a loss of 10 percent of
the full charge) as CARB requires. EPA
knows that such equipment is already
available on the market and capable of
meeting those standards, which allows
companies wishing to install automatic
leak detection equipment to do so
sooner than if EPA established different
standards in this rule. It also means that
installed equipment that meets
California’s requirements will meet
EPA’s requirements. EPA disagrees, as
discussed later, with the comment
suggesting it require the use of
automatic leak detection equipment.
Some commenters were opposed to
requiring automatic leak detection. One
such commenter stated that it does not
work well outdoors and that it may be
hazardous to enclose a system to
facilitate leak detection. It can also be
expensive and EPA did not estimate the
costs of requiring it. One nuclear power
producer commented that any
modifications to nuclear generating
stations must undergo extensive
engineering and risk review processes.
This argues against requiring the
installation of monitoring equipment.
Another commenter stated that it has
not been able to identify any reliable
information confirming that such
automatic leak detection devices are
available, cost-effective, and capable of
satisfying EPA’s requirements.
EPA responds that the Agency is not
requiring the use of automatic leak
detection equipment in this final rule.
Rather, this is an option that an owner
or operator can choose to pursue in lieu
of conducting periodic leak inspections.
EPA agrees that automatic leak
detection equipment may not be
appropriate for all systems, and the
Agency is not suggesting that
components be enclosed in order to
allow for automatic leak detection
equipment where it would be hazardous
to do so. The decision to install such
equipment is up to the owner/operator.
With regard to availability, EPA
responds that California’s existing
requirements for use of such systems
have been in place since 2011 and
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include the same standards as those
EPA is finalizing in this rule, so
equipment meeting these requirements
is already available and in use. EPA
encourages anyone interested in using
automatic leak detection to consult
entities in California regarding the
availability and performance of such
equipment. Another commenter notes
that electronic leak detection equipment
is currently installed in thousands of
supermarkets, further supporting the
idea that such equipment is available
and in use.
Many commenters supported
automatic leak detection equipment in
lieu of periodic leak inspections but
were concerned that the systems they
currently have installed do not meet the
requirements of the proposed rule
because the entire refrigeration system
is not within the building envelope.
EPA proposed that automatic leak
detection equipment systems that
directly detect the presence of a
refrigerant in air could only be used
where the entire appliance or the
compressor, evaporator, condenser, or
other component with a high potential
to leak is located inside an enclosed
building or structure. Multiple
commenters requested that EPA still
allow the option of using automatic leak
detection for those components that are
not outdoors. The outside components
would then be the only portion of the
system that would be subject to periodic
inspections. EPA agrees that automatic
leak detection equipment should be
allowed for enclosed components even
if only portions of an appliance are
enclosed and the proposed rule was
intended to cover that situation. EPA
has revised the final rule to more clearly
allow for this and to clarify that in such
situations, the automatic leak detection
equipment would only be used to
monitor components located in an
enclosed building or structure but the
other components would continue to be
subject to any applicable leak inspection
requirements.
One commenter encouraged EPA to
require that the leak detection system be
certified. There are third party systems
on the market that claim to check
charges, but the commenter believes
some may be inaccurate. The
commenter recommends referencing
ASHRAE 207P, which will allow for
verification of the charge checking
systems. EPA responds that the
referenced ASHRAE standard is still
under development and we are unaware
of any certification programs that exist
or that are planned to reference that
standard once finalized. Requiring
certifications for leak detection systems
is therefore not appropriate at this time.
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EPA is finalizing the proposal to require
that the owner or operator calibrate the
automatic leak detection system
annually and keep records documenting
the calibration.
5. Lowering Leak Rates
The leak rate is the rate at which an
appliance is losing refrigerant, measured
between refrigerant charges. If the leak
rate for an appliance is above a specified
threshold, the regulatory revisions
finalized in this rule require certain
actions, such as leak repair, from the
owner/operator.
EPA is lowering the leak rates for IPR,
commercial refrigeration, and comfort
cooling and other appliances containing
ODS refrigerants and is establishing
those same leak rates for appliances
using non-exempt substitute
refrigerants. EPA is lowering the leak
rates to 30 percent (from 35 percent) for
IPR, 20 percent (from 35 percent) for
commercial refrigeration appliances and
10 percent (from 15 percent) for comfort
cooling and all other appliances with a
full charge of 50 pounds or more of ODS
or non-exempt substitute refrigerant. For
the reasons discussed below, EPA is
finalizing a higher leak rate for IPR than
proposed while finalizing the same rates
as proposed for commercial refrigeration
and comfort cooling. In making this
decision, EPA has assessed the
compliance costs, cost savings, and
environmental benefits and has found
that the aggregated costs are reasonable,
and that lowering leak rates will result
in fewer emissions of both ODS and
non-exempt substitute refrigerants.
EPA reviewed data submitted under
California’s RMP, the South Coast Air
Quality Management District
(SCAQMD), GreenChill partners,
consent decrees for both commercial
refrigeration and IPR for companies
found to be in violation of subpart F
regulations, EPA’s Vintaging Model,
conversations with potentially affected
stakeholders, and comments on this and
past proposed rules. See the technical
support document Analysis of the
Economic Impact and Benefits of Final
Revisions to the National Recycling and
Emission Reduction Program for a
complete discussion. EPA presents here
background on two data sources (CARB
and SCAQMD) that EPA relied on for
multiple types of appliances and then
discusses appliance-specific data
separately.
California’s RMP requires that owners
or operators of any appliance with more
than 50 pounds of ODS or HFC
refrigerant repair leaks, conduct leak
inspections or install automatic leak
detection equipment, and report their
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refrigerant usage and repairs.22 In
addition, any facility with a
refrigeration appliance containing more
than 50 pounds of refrigerant must
report all service records annually to
California. CARB has categorized
facilities based on the facility’s largest
appliance. Facilities that have at least
one appliance with a full charge of
2,000 pounds or more (classified as
‘‘large’’ facilities under the RMP) began
reporting in 2012 (for 2011 service
records). These large facilities must
submit service records for any appliance
that has a full charge greater than 50
pounds. ‘‘Medium’’ facilities have at
least one appliance with a full charge of
200 or more pounds but less than 2,000
pounds and they started reporting in
2014. ‘‘Small’’ facilities have at least one
appliance between 50 and 200 pounds
and will have begun reporting in 2016.
California’s reporting program provides
insight into the use and emissions of
ODS and substitute refrigerants from
refrigeration appliances in the state,
across a broad range of sectors that use
refrigeration appliances. For the
proposed rule, EPA reviewed the 2013
data, the most recent dataset available at
that time, which contained information
from 11,166 appliances at large and
medium facilities. EPA has
subsequently reviewed the 2014 data,
containing data on 12,605 appliances,
and found it to be substantially similar.
A series of charts showing the
aggregated California data has been
included in the technical support
document. EPA has analyzed these data
in developing the revised leak rates for
IPR, commercial refrigeration, and
comfort cooling appliances.
California’s South Coast Air Quality
Management District is an air pollution
control agency that services the areas of
Orange County and the urban portions
of Los Angeles, Riverside, and San
Bernardino counties, which contained
approximately half of the population of
California at that time. SCAQMD had
issued Rule 1415 to reduce emissions of
ozone-depleting refrigerants from
stationary refrigeration and airconditioning systems. The rule required
any person within SCAQMD’s
jurisdiction who owns or operates a
refrigeration system to minimize
refrigerant leakage. A refrigeration
system is defined for the purposes of
22 Among other requirements, the RMP
establishes leak repair requirements for appliances
with more than 50 pounds of refrigerant. More
detail on the RMP is provided in the technical
support document in the docket titled Analysis of
the Economic Impact and Benefits of Final
Revisions to the National Recycling and Emission
Reduction Program and online at www.arb.ca.gov/
stoprefrigerantleaks.
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that rule as ‘‘any non-vehicular
equipment used for cooling or freezing,
which holds more than 50 pounds of
any combination of class I and/or class
II refrigerant, including, but not limited
to, refrigerators, freezers, or airconditioning equipment or systems.’’
Under Rule 1415, SCAQMD collected
the following information every two
years from owners or operators of such
refrigeration systems: Number of
refrigeration systems in operation; type
of refrigerant in each refrigeration
system; amount of refrigerant in each
refrigeration system; date of the last
annual audit or maintenance performed
for each refrigeration system; and the
amount of additional refrigerant charged
every year. For the purposes of Rule
1415, additional refrigerant charge is
defined as the quantity of refrigerant
charged to a refrigeration system in
order to bring the system to a full
capacity charge and replace refrigerant
that has leaked. This reporting
requirement has now been replaced by
the statewide RMP reporting.
EPA analyzed the SCAQMD data on
ODS-containing appliances for the
proposed 2010 Leak Repair Rule. The
analysis prepared for that rule can also
be found in the docket for today’s
rulemaking. The dataset contains
information on over 4,750 appliances
from 2004 and 2005 with ODS
refrigerant charges greater than 50
pounds. The data included refrigeration
and air-conditioning appliances that
meet EPA’s definitions of IPR (e.g., food
processing industry, pharmaceutical
manufacturing), commercial
refrigeration (e.g., refrigerated
warehouses, supermarkets, retail box
stores), and comfort cooling (e.g., office
buildings, universities, hospitals) from
businesses of all sizes. EPA has
considered the previous analysis of
those data in developing the revised
leak rates for IPR, commercial
refrigeration, and comfort cooling
appliances in this final rule.
i. Industrial Process Refrigeration
In the proposed rule, EPA discussed
reducing the leak rate for IPR and
commercial refrigeration from 35
percent to 20 percent. EPA specifically
sought comments on whether a 20
percent leak rate was appropriate, or
whether a leak rate higher than 35
percent or as low as 10 or 15 percent
would be appropriate. After considering
the comments received and upon
further analysis of the CARB data, EPA
is finalizing a leak rate of 30 percent.
Some commenters supported the
lower leak rates noting that real-world
experience shows that the lower leak
thresholds are technically and
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practically achievable. Some industry
members encouraged EPA to explore the
feasibility of further lowering rates for
IPR in the future, consistent with
improved and available industry best
practices. Other commenters stated that
data from GreenChill and consent
decrees are not representative of IPR
facilities. One commenter also stated
that CARB data do not support that a 20
percent threshold is achievable because
one third of the reporting facilities are
not achieving such performance. As a
result, the commenter stated that EPA
has not shown that lowering the leak
rate for IPR from 35 to 20 percent is
necessary nor economically or
practically feasible.
Some commenters suggested EPA
distinguish between old and new
equipment. One commenter noted that
existing IPR equipment can meet the 35
percent leak rate but not all could
achieve the 20 percent leak rate. Thus,
the proposed leak rate would strand
significant investment in customdesigned refrigeration process
equipment. Another commenter stated
that older IPR facilities were designed
when refrigerant tightness was not a
critical design element. Facilities have
been upgraded and maintained to
achieve 35 percent leak rates but further
upgrades and repairs to bring them to a
lower rate would be costly if not
impossible. The commenter also stated
that it would not be cost effective since
many are near the end of their useful
lives. A few commenters suggested that
EPA follow the 1998 proposal and allow
for the 35 percent rate if the appliance
meets all of the following criteria: (1)
The refrigeration system is custom-built;
(2) the refrigeration system has an opendrive compressor; (3) the refrigeration
system was built in 1992 or before; and
(4) the system is direct-expansion
(contains a single, primary refrigerant
loop). Another commenter
recommended keeping the leak rate at
35 percent for systems using substitute
refrigerants, stating that companies that
retrofitted from ODS to HFC refrigerants
should be recognized for that prior
environmental advancement.
In response to the comment that some
of the data are not representative of IPR
facilities, EPA responds that the
Technical Support Document for the
proposal did distinguish between IPR
and commercial refrigeration. EPA did
not use GreenChill’s commercial
refrigeration data or consent decrees for
commercial refrigeration as a basis for
the proposal on IPR. In the final
Technical Support Document, as well as
the discussion that immediately follows,
EPA has further separated out the
analysis for IPR.
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After considering these comments and
further reviewing the CARB data, EPA is
finalizing a leak rate of 30 percent for
IPR, rather than 20 percent as proposed.
The potential benefits of lowering the
leak rate to 20 percent are small in
relation to the potential costs incurred
by those small number of facilities that
could be affected.
EPA’s model, informed by the 2013
CARB data, indicates that 92 percent of
IPR appliances have leak rates below 30
percent. Almost 10 percent of ODScontaining appliances would trigger the
leak repair requirements if the leak rate
were lowered from 35 to 20 percent, as
proposed. However, if the leak rate is
lowered from 35 to 30 percent only 0.6
percent more ODS-containing IPR
appliances would trigger the leak repair
requirements.
Viewed another way, using the
California data as a proxy for the entire
United States’ IPR systems, the
proposed 20 percent leak rate could
affect up to 9 percent of all IPR
appliances (though only a small subset
of IPR systems above 20 percent using
ODS refrigerant would be newly
affected because they were already
subject to the 35 percent leak rate).
Appliances that leaked more than 20
percent are responsible for 86 percent of
emissions in the CARB data. Changing
the leak rate threshold to 30 percent, as
EPA is finalizing in this rule, would
affect 7 percent of all IPR appliances
and an even smaller subset of ODScontaining equipment (only 0.6
percent). In the CARB records,
appliances leaking more than 30 percent
are responsible for 75 percent of
emissions.
EPA’s review of the 2004 and 2005
data submitted to the SCAQMD from
349 IPR facilities also indicate that 81
percent of ODS-containing IPR
appliances had leak rates below 30
percent. Slightly less than 5 percent of
ODS-containing appliances would
trigger the leak repair requirements if
the leak rate was lowered from 35 to 20
percent, as proposed. In this final rule,
only 1.5 percent of ODS-containing
appliances would trigger the leak repair
requirements if the leak rate was
lowered from 35 to 30 percent.
However, by extending the leak repair
requirements to IPR appliances
containing non-exempt substitute
refrigerants, a 30 percent leak rate
would also trigger all IPR facilities using
non-exempt substitute refrigerants
above that threshold, not just the
incremental difference of facilities
operating between 30 and 35 percent.
EPA calculates leak inspection and
repair costs of a 20 percent leak rate for
IPR to be $7.0 million, with annual
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emissions reductions equal to 0.63
MMTCO2eq and 8.0 ODP tons. EPA
calculates the leak inspection and repair
compliance costs of a 30 percent leak
rate for IPR to be $5.5 million, with
annual emissions reductions equal to
0.44 MMTCO2eq and 5.4 ODP tons.
Finally, EPA analyzed retaining the
current 35 percent leak rate for IPR, as
applied to IPR using substitute
refrigerants. In that scenario, the leak
inspection and repair costs would be
$5.1 million, with annual emissions
reductions equal to 0.26 MMTCO2eq
and 0 ODP tons. Lowering the leak rate
from 35 to 30 percent provides
significantly more environmental
benefits, including reductions in
emissions of ozone-depleting
substances, for the costs. Lowering the
leak rate further provides diminishing
returns.
EPA recognizes that some IPR
transitioned to HFCs from ODS
refrigerants. This may have been an
environmental decision for some, but
other commenters stated that this was
done to avoid being covered by the
subpart F regulations. For whatever
reasons, these facilities transitioned to a
substitute refrigerant and therefore were
no longer required to maintain a leak
rate below 35 percent. EPA’s analysis
described above indicate that that a
majority of the new IPR equipment
affected by the rule will be those using
substitute refrigerants. At a 30 percent
leak rate, EPA estimates that there will
be 492 newly affected systems
containing ODS refrigerant but 5,938
systems containing HFC refrigerants.
While the number of affected IPR
facilities may be small (EPA estimates
there are 1.5 million appliances with a
charge size of at least 50 pounds of an
ODS or non-exempt substitute
refrigerant), the challenges faced by IPR
facilities to upgrade or improve their
system are more substantial that those
faced by other appliance types. In
general, leak rates are highest for IPR
systems for a number of factors. First,
such appliances are generally custombuilt and assembled at the site where
they are used rather than in a factory
where standard manufacturing practices
can be put in place to reduce leaks.
Appliances used in IPR are customdesigned for a wide spectrum of
processes and facilities, including
applications such as flash freezers
aboard commercial fishing vessels to
cooling processes used in the
manufacture of pharmaceuticals. This
results in the sector having an
extraordinarily broad range of
equipment configurations and designs.
Custom designed equipment may also
present more challenges to original
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82319
equipment manufacturers who wish to
systematically implement leak
reduction technologies. Second, these
appliances generally use a long, single
refrigerant loop for cooling that is not
enclosed within a piece of equipment.
This tends to raise average leak rates,
particularly when the refrigerant loop
flows through inaccessible spaces, such
as underneath floors, or when used in
challenging climates and operating
conditions. Third, these appliances are
often integrated into production plants
or other applications and typically
operate continuously. This need for
continuous operation can make
repairing certain leaks more difficult
and costly, possibly requiring
manufacturing processes to be shut
down and long lead times. Multiple
commenters agreed with and provided
comments supporting EPA’s assessment
that IPR facilities can be leakier and
more challenging to repair than
commercial refrigeration and comfort
cooling appliances.
In response to comments requesting
different leak rates for old and new
appliances, EPA is not distinguishing
between old and new appliances in the
regulations for the following reasons.
First, CARB data indicate that older IPR
equipment is not necessarily leakier
than newer IPR equipment. While
newer systems can generally be
designed with leak tightness in mind,
EPA has also found that the quality of
the construction and the operation and
maintenance of the appliance plays a
larger role in whether the appliance
leaks than the age of the equipment per
se. Leakage can be reduced even on
older equipment by taking appropriate
measures. Second, in EPA’s experience
with the HCFC phaseout, it has been
challenging in some circumstances for
owners and operators to determine
whether an appliance is existing or new.
For clarity and to facilitate
compliance, and consistent with the
proposal, EPA is not finalizing a
distinction between old and new IPR
appliances in the leak thresholds
finalized in this rulemaking. In response
to the commenters encouraging EPA to
explore the feasibility of further
lowering IPR rates in the future, EPA
will take this under advisement for
future analyses and such a future
analysis may include the age of the
facility and refrigeration technology
used. Further gradation of the IPR
category is not necessary at this time.
ii. Commercial Refrigeration Appliances
EPA proposed to lower the leak rate
for commercial refrigeration appliances
from 35 percent to 20 percent. Based on
the data analysis discussed in this
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section and comments, EPA is finalizing
that rate as proposed.
First, EPA reviewed data from
GreenChill, an EPA partnership with
food retailers to reduce refrigerant
emissions and decrease their impact on
the ozone layer and climate change.
Established in 2007, this partnership
has 27 member companies comprising
almost 30 percent of all supermarkets in
the United States. GreenChill works to
help food retailers voluntarily (1)
transition to environmentally friendlier
refrigerants; (2) lower refrigerant charge
sizes; (3) eliminate leaks; and (4) adopt
green refrigeration technologies and best
environmental practices. One of the
GreenChill partnership’s programs that
helps food retailers reduce their
refrigerant emissions is the Food
Retailer Corporate Emissions Reduction
Program. Under this program, partners
report their corporate-wide average leak
rate for all refrigerants. A corporatewide average leak rate is the sum of all
refrigerant additions in a given time
period for all of the commercial
refrigeration appliances owned by a
corporate entity, divided by the full
charge for all of the commercial
refrigeration appliances owned by that
same corporate entity during that time
period.
Between 2007 and 2014, the
corporate-wide average leak rate for all
reporting GreenChill partners remained
within a relatively narrow range of
between 12.6 percent and 13.8 percent.
Remarkably, when new partners joined,
the reported corporate-wide average
leak rate across all partners remained
level. Several supermarket chains in the
GreenChill program, including some
having hundreds of stores, have
consistently reported a corporate-wide
leak rate below 10 percent. These data
support the conclusion that leak rates in
commercial refrigeration appliances can
be considerably lower than 35 percent
and that a 20 percent leak rate is
reasonable.
Some commenters found GreenChill
data unpersuasive because they are selfreported and unverified and because
they represent the average performance
of multiple appliances rather than the
performance of individual systems.
Another commenter stated that
GreenChill data are not representative of
the supermarket industry as a whole
and do not consider the capabilities of
independent operators or small
businesses.
EPA disagrees with the comments
regarding the use of GreenChill data. It
is appropriate to use the GreenChill data
to inform EPA’s consideration of
achievable leak rates for commercial
refrigeration. The average performance
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of multiple appliances is relevant to
understanding how well individual
appliances, on average, perform. This
dataset represents almost a third of the
supermarket industry, including a few
smaller independent operators, over
multiple years and locations across the
United States. Even if the data were
biased towards larger chains and
organizations that have proactively
sought to reduce their emissions below
the prior regulatory rate of 35 percent,
these data give an indication of what is
achievable when companies seek to
reduce leak rates. Further, these data
demonstrate that leak rates well below
20 percent are not just achievable but
may be consistently maintained. A leak
rate is not inherent to a particular piece
of equipment but rather includes factors
such as how that appliance is operated
and maintained.
One commenter representing the
supermarket industry supported
lowering the leak rate threshold but
stated that 20 percent may be
burdensome for small businesses and
independent retailers. Other
commenters in the supermarket
industry supported the proposed 20
percent leak rate and one stated that
they currently meet that rate for both
ODS and HFC equipment. CARB
submitted comments suggesting that
EPA lower the leak rate to 10 percent for
commercial refrigeration, or totally
eliminate the threshold. Based on their
2014 RMP data, lowering the threshold
to 10 percent would raise the number of
affected systems in California from
5,500 to 6,342 (out of more than
approximately 20,000 systems) while
reducing greenhouse gas emissions by
0.11 MMTCO2e. Another commenter
urged EPA to establish a leak rate of 10
percent for new commercial
refrigeration to incentivize improved
design, installation, and maintenance.
The commenter refers to the GreenChill
program at least 125 stores currently
certified as Silver or above, and with
Platinum certified stores achieving leak
rates below 5 percent and to a
supermarket chain in the UK that has a
corporate-wide leak rate of 7.1 percent
in 2013.
EPA responds that the average leak
rate across all GreenChill commercial
refrigeration appliances does not rise
appreciably when new companies
joined the partnership, which indicates
that companies operating outside of the
GreenChill partnership are operating
with leak rates well below 35 percent.23
EPA’s standard presumption, based on
23 See the document GreenChill Partnership’s
2014 Data: Benchmarks, Results, and Trends in the
docket.
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CARB data, is that the average leak rate
for all commercial refrigeration is 25
percent. That some commenters say
they operate their commercial
refrigeration with leak rates below 20
percent for both ODS and HFC
equipment is further support that
private incentives drive lower leak rates
and that a 20 percent rate is clearly
achievable.
Based on data in the record, EPA does
not agree that a 10 percent leak rate
would be appropriate for commercial
refrigeration. GreenChill partners have
lower leak rates than the industry
average, yet the average rate among all
commercial refrigeration appliances in
GreenChill is around 13 percent. There
are only nine supermarkets that have
achieved the Platinum level
certification. EPA therefore does not
believe that 10 percent is currently
regularly achievable industry-wide. EPA
also appreciates the concept raised by
the commenter that establishing lower
leak rates for future appliances could be
a way to encourage innovation. EPA did
request comment on whether there are
other regulatory incentives that could
provide a basis to go with a leak rate
lower than 20 percent and establishing
a target rate to achieve in the future is
an intriguing concept. EPA will take this
comment under advisement. However,
in today’s final rule EPA is basing the
revised leak rates on what appliances
are currently able to regularly achieve.
The data submitted to the SCAQMD
from 1,722 commercial refrigeration
appliances indicate that 77 percent of
ODS-containing comfort cooling
appliances had leak rates below 20
percent. Only 8 percent of ODScontaining appliances would trigger the
leak repair requirements if the leak rate
was lowered from 35 to 20 percent. In
2010, when EPA analyzed the data, EPA
found that the SCAQMD leak repair data
for commercial refrigeration appliances
was consistent with EPA’s analysis of
the commercial refrigeration sector.
EPA has also reviewed how
companies agreed to manage refrigerants
through recent consent decrees with the
Agency. In consent decrees with
Safeway and Costco, the two companies
agreed to bring their corporate-wide leak
rates from about 25 percent to 18 and 19
percent, respectively. In a recent
consent decree with Trader Joe’s, the
company agreed to achieve and
maintain an annual corporate-wide
average leak rate of 12.1 percent through
2019. One commenter was unpersuaded
by the use of consent decrees because
they are aspirational and do not reflect
actual operation. EPA agrees that the
corporate-wide leak rates to be obtained
under these consent decrees are not data
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of actual operations, per se, but they are
more than merely aspirational. Consent
decrees are legally binding and the
companies would not have committed
to them if they thought they were
unachievable. These consent decrees
provide additional support for the
proposition that a 20 percent leak rate
for commercial refrigeration is
reasonably achievable. These consent
decrees are available in the docket.
iii. Comfort Cooling and Other
Appliances
EPA proposed to lower the leak rate
for comfort cooling appliances and all
other refrigeration appliances normally
containing 50 pounds or more of
refrigerant that do not fit into the
commercial refrigeration or IPR
categories from 15 percent to 10 percent.
Based on the data analysis discussed in
this section and comments, EPA is
finalizing that rate as proposed.
Some commenters recommended
keeping the leak rate at 15 percent
because some older systems may not be
able to achieve a lower leak rate. These
commenters stated that large chillers
from the 1990s have a leak rate of 8 to
10 percent due to the seal lubrication
design and that as chillers age, the leak
rate increases. They asserted EPA
should therefore consider the
equipment’s date of manufacture, the
compressor configuration, and whether
the equipment is custom built. Another
commenter recommended a 5 percent
leak rate for comfort cooling and cited
multiple data sources. This commenter
pointed to sources of data showing a 0.5
percent leak rate for HCFC–123 chillers,
as well as a 2009 CARB analysis
showing a leak rate of 1 percent and the
2005 IPCC/TEAP Special Report which
shows average annual leak rates for best
practice in large commercial airconditioning to be 0.5 percent. Another
commenter indicated support for the 10
percent leak rate and noted that the
threshold could be lowered further
without creating undue burden, but did
not provide any technical data
concerning average leak rates.
EPA responds that the Agency does
consider factors such as the date of
manufacture and the compressor
configuration for establishing a leak rate
applicable to all comfort cooling
appliances. Since as far back as 1998,
EPA found that comfort cooling
appliances leaked less than five percent
per year, with many new comfort
cooling appliances leaking around two
or even one percent per year. The
highest leak rates reported from new
equipment back in 1998 was high
pressure chillers with open-drive
compressors with leak rates ranging
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from four to seven percent. (63 FR
32066). This assessment continues to be
valid based on industry feedback on
EPA’s Vintaging Model. On the other
side of the spectrum, the ultralow leak
rates (e.g., 1 percent or lower) cited by
the other commenter are generally bestpractice leak rates or average leaks rates
across new or low-pressure chillers and
do not necessarily represent the full
range of chillers, by type and age, that
are subject to these regulations. The
HCFC–123 chillers cited by the
commenter operate at a lower pressure
than the other systems and thus might
not be representative of achievable leak
rates for HFC and other HCFC
equipment which operate under higher
pressures.
A few commenters stated that EPA
lacks definitive data on typical and
economically achievable leak rates for
comfort cooling appliances. These
commenters asserted that the CARB and
GreenChill data presented in the
proposed rule are primarily related to
commercial refrigeration and IPR, and
that SCAQMD’s data is not nationally
representative because those appliances
have been subject to leak regulations
since 1991.
EPA responds that the Agency has
analyzed average leak rates specifically
of comfort cooling appliances as
reported to SCAQMD and CARB, and as
estimated in the Vintaging Model. As
reflected in this analysis, these three
sources indicate that most comfort
cooling appliances can regularly achieve
an annual leak rate of 10 percent. This
memo also cites other industry
estimates of leak rates in comfort
cooling appliances. The majority of
these estimates range between 2 and 5
percent with three of the fourteen
estimates estimating leak rates above 10
percent.
The data submitted to the SCAQMD
from 2,700 comfort cooling appliances
indicate that 87 percent of ODScontaining comfort cooling appliances
had leak rates below 10 percent. Only
1.5 percent of ODS-containing
appliances would trigger the leak repair
requirements if the leak rate was
lowered from 15 to 10 percent.
EPA agrees that appliances in
California or in the SCAQMD may have
lower leak rates than appliances
nationally, given the refrigerant
management regulations that have
existed in the state for many years. EPA
therefore compared California data with
the national assumptions in the
Vintaging Model and found that the two
correlate closely. The Vintaging Model
is updated frequently with data
supplied by refrigerant industry
stakeholders. Therefore, any difference
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is not likely to be significant. This
comparison is found in the final
technical support document in the
docket.
Commenters also stated that previous
actions are leading the recovery of the
ozone layer. These commenters stated
that reducing the leak rate as proposed
will not contribute to the recovery of the
ozone layer and thus EPA cannot justify
the burden on owners and operators of
such equipment. EPA anticipates that
this action will contribute to the
recovery of the ozone layer and has
calculated a reduction in ODP-weighted
emissions of 114 ODP tons. However,
section 608 does not require EPA to
quantify the impact of this action on the
ozone layer. To the contrary, section
608(a) directs EPA to establish
regulations that reduce the use and
emissions of ODS to the lowest
achievable level, without requiring
separate evaluation of how each such
reduction would affect the recovery of
the stratospheric ozone layer. Individual
actions such as reducing emissions from
comfort cooling appliances fit into the
broader approach to ozone layer
protection reflected in Title VI of the
Clean Air Act. As such, any action that
reduces the use and emissions of ODS
can help the recovery of the ozone layer.
EPA also received two comments
regarding what is included under the
term other appliances. One commenter
recommended that the Agency create a
defined term that includes refrigerated
air dryers, non-food cold storage, wind
tunnels, electrical equipment room
cooling, non-occupied digital control
rooms, computer server rooms with set
point below 68 °F, environmental
chambers, growth chambers, turbine
inlet air cooling, test cells and
chambers, and aquariums. That
commenter stated that thousands of
regulated entities have identified
systems that potentially fall into that
category. Another commenter noted that
humidity control in paint booths and air
compressors could be other appliances
but are currently treated as IPR. This
commenter encouraged EPA to remove
the other category and instead treat
appliances that do not fall under
comfort cooling or commercial
refrigeration as IPR.
At this time, EPA is not finalizing a
definition of ‘‘other appliance.’’ The
owners or operators of some of the
appliances included in a definition may
currently treat such appliances as IPR or
commercial refrigeration. While not all
‘‘other appliances’’ fall under IPR, for
those that do, moving them into an
‘‘other appliances’’ category would
reduce their leak rate from 35 to 10
percent without prior notice. More
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fundamentally, EPA’s current view is
that it is appropriate for other
appliances to be regulated according to
their function, such that those that fit
within the definition of IPR would be
regulated as IPR and those that fit
within the definition of commercial
refrigeration would be regulated
accordingly. That view is reflected in
the regulatory text finalized in this rule,
which provides that the 10 percent leak
rate applies to ‘‘other appliances’’ with
a full charge of 50 or more pounds of
refrigerant that are not covered by
subparagraphs addressing IPR or
commercial refrigeration equipment.
6. Leak Rate Calculation and Seasonal
Variances
The first step in reducing refrigerant
leaks is knowing whether the appliance
is leaking refrigerant and, if so, to what
extent. The prior regulations at
§ 82.156(i) did not explicitly require
technicians or owners and operators to
calculate the leak rate each time
refrigerant is added to an appliance.
Recognizing that knowing the leak rate
is necessary for compliance with the
leak repair provisions of subpart F,
EPA’s Compliance Guidance for
Industrial Process Refrigeration Leak
Repair Regulations under Section 608 of
the Clean Air Act from October 1995
states that ‘‘[e]ach time you add
refrigerant to a system normally
containing 50 pounds or more of
refrigerant, you should promptly
calculate the leak rate.’’ (emphasis in
original). Generally, the only time one
can calculate the leak rate is when
refrigerant is added to the appliance.
To reinforce this practice, EPA is
clarifying in the revisions to the
regulatory text finalized in this rule that
owners or operators of appliances with
50 or more pounds of refrigerant must
calculate the leak rate every time
refrigerant is added to those appliances.
EPA is also clarifying that the leak rate
would not need to be calculated when
refrigerant is added immediately
following a retrofit or the installation of
a new appliance or for a seasonal
variance.
Two commenters suggested that the
leak rate calculation should not be
required on non-leaking appliances
where all identified leaks are repaired
within 30 days of discovery. While EPA
commends appliance owners and
operators who regularly repair all
identified leaks within 30 days,
calculating the leak rate each time
refrigerant is added is still necessary.
Comments indicate that in some
instances, appliance owners and
operators are unable to find significant
leaks that may be driving the high leak
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rate. Given this feedback, EPA
concludes that calculating the leak rate
is needed to alert the appliance owner
or operator to the fact that, in the case
of a continually high leak rate, the
typical repair and inspection attempts
are not sufficiently addressing the
problem with the appliance. Moreover,
because the revisions to the leak repair
rules as finalized in this action require
owners or operators to repair leaks to
lower the leak rate below the applicable
threshold, calculating the leak rate on
an ongoing basis provides important
information to help evaluate whether
this requirement has been satisfied. Not
calculating the leak rate each time
refrigerant is added could also lead to
confusion for technicians that service
more than one customer if each has
different equipment subject to different
regulatory compliance requirements.
EPA is also clarifying in this final rule
how to handle seasonal variances. In
regions of the country that experience
large temperature swings during the
year, refrigerant in some appliances can
migrate from the condenser to the
receiver. This migration results in a
need to add refrigerant to an appliance
to ‘‘flood the condenser’’ in the season
of lower temperature ambient
conditions (fall or winter). In this case,
the added refrigerant would have to be
removed when the weather returns to
design ambient conditions to prevent
high head pressures. This technique is
often referred to as a winter-summer
charge procedure or a seasonal
adjustment. Seasonal adjustments are
not necessary for appliances with
properly sized system receivers because
they can hold the appliances’ full
charge, including the additional charge
needed to flood the condenser.
Under this final rule, owners or
operators can exclude from the leak rate
calculation the amount added that is
less than or equal to the amount
removed during the prior season. In a
properly charged, non-leaking system,
adding refrigerant during months with
lower ambient conditions (fall or
winter) would require an equivalent
amount of refrigerant to be removed in
the months with higher ambient
conditions (spring or summer). If more
refrigerant is added in the fall/winter
than was removed in the prior spring/
summer, the difference between the two
would be considered a leak and not a
seasonal variance. Without requiring
that the amount added be equal to or
less than the amount removed to qualify
for the exemption, there is no way to
distinguish legitimate seasonal
variances from refrigerant leaks. For
example, an appliance owner removes
150 pounds of refrigerant during the
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spring. Later that year, he adds 180
pounds to that same system to address
a seasonal variance. The owner would
be able to consider 150 of the 180
pounds as a seasonal variance and the
remaining 30 pounds as a leak.
EPA expects only one removal and
one addition of refrigerant to account for
seasonal variance. If the amount added
is equal to or less than the amount
removed in the previous season, but an
additional amount is added in close
proximity (typically within a few days
to a few weeks) to the addition being
counted as a seasonal variance, and the
two additions together are less than or
equal to the amount removed in the
previous season, the second addition
would be considered part of the same
refrigerant addition unless the owner or
operator could document a leak.
As discussed previously in this
notice, EPA is defining a seasonal
variance as the removal of refrigerant
from an appliance due to a change in
ambient conditions caused by a change
in season, followed by the subsequent
addition of an amount that is less than
or equal to the amount of refrigerant
removed in the prior change in season,
where both the removal and addition of
refrigerant occurs within one
consecutive 12-month period.
EPA is finalizing in the revised
regulations at § 82.157(b) that the leak
rate does not need to be calculated
when adding refrigerant that qualifies as
a seasonal variance. Both the addition
and prior removal of refrigerant due to
seasonal variances must be documented.
Such additions and removals would
already be accounted for in service
records provided by the technician to
the owner/operator. The recordkeeping
requirements for this flexibility in
calculating the leak rate are located in
§ 82.157(l)(2), and those for maintaining
records associated with the seasonal
variance if it is excluded from the leak
rate calculation are at § 82.157(l)(10).
Commenters were generally
supportive of this new flexibility, but
had some concerns, many of which are
discussed in the definitions section of
this notice. Several commenters
requested clarification on whether the
owner or operator would be responsible
for this requirement. Owners or
operators must keep records of
refrigerant added and removed from an
appliance. If they wish to claim a
seasonal variance, they must note in
their records the amount of refrigerant
that was removed at the end of the last
season for a seasonal variance. This is
likely to be one of the only reasons to
remove refrigerant without immediately
adding additional refrigerant or without
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mothballing, retiring or retrofitting an
appliance.
7. Appliance Repair
The prior regulations at § 82.156(i)
generally require owners or operators to
repair leaks within 30 days of the leak
rate being exceeded (i.e., the date of the
refrigerant addition) to bring the leak
rate to below the applicable leak rate. In
the proposed rule, EPA discussed that
owners or operators may not know that
they have performed sufficient repairs
to bring the system below the leak rate,
or they may have completed the repairs
but may find themselves out of
compliance if a separate leak occurs. To
reduce emissions of refrigerants to the
lowest achievable level, and remove
ambiguity concerning compliance, EPA
proposed to require a leak inspection of
the appliance and then repair all
identified leaks. Recognizing that a
small amount of refrigerant can be
released from an appliance even if the
refrigerant circuit is unbroken, EPA
sought comments on not requiring the
repair of certain minor leaks.
Specifically, EPA asked whether it
should exempt situations where sound
professional judgment indicates an
individual identified leak is not the
result of a faulty component or
connection and that refrigerant releases
would not be reduced from repair or
adjustment.
Many commenters requested that EPA
differentiate between major fixable leaks
and minor unfixable leaks. They stated
that it is impossible to repair ‘‘all leaks’’
as many systems have minuscule leaks
that are not fixable. A couple of
commenters suggested that EPA not
require the repair of leaks that meet the
ASHRAE 147 standard, which are those
that are less than 0.1oz/year/joint.
Another commenter recommends a
threshold of 10,000 ppm if using leak
detection equipment, or detection
visible to the naked eye if using
qualitative tests like a soap bubble test.
Other commenters supported EPA’s
proposed exception that allows a
technician to use best professional
judgment to decide that a leak is not
caused by a faulty component or
connection and that the leak would not
be reduced from repair or adjustment.
Some commenters were concerned
about the diminishing returns of
repairing all identified leaks. In some
cases, small leaks may actually require
extensive repair activities and even
component replacement. Repairing all
identified leaks will extend repair times,
which for IPR systems may increase the
costs of the repair or, in the case of
nuclear generating facilities, increase
the risk of conducting those repairs. For
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those reasons, these commenters said
owners and operators should be
provided flexibility to select which
leaks to repair or make a good-faith
effort to repair leaks.
In this final rule, after consideration
of the comments, EPA is not finalizing
the proposed change to require repair of
all identified leaks. In the proposal, EPA
acknowledged that a small amount of
refrigerant can migrate from an
appliance even if the refrigerant circuit
is unbroken, and requested comment on
whether there should be a limited
exception from the requirement.
Instead, the regulations finalized today
contain the same requirement as in the
original rule by requiring that leaks be
repaired such that the leak rate will be
below the applicable leak rate.
Accordingly, EPA is not at this time
setting a final standard for what is, or is
not, an actionable leak beyond the
applicable leak rate. In not finalizing
this proposed change, EPA considers
that an owner or operator may have
good reason to choose not to repair a
small leak. EPA also considers the
original intent of the leak repair
provisions, as explained in the 1993
Rule. At that time the Agency
considered requiring the repair of all
leaks ‘‘which has the benefit of
simplicity and clarity’’ but explained
that without ‘‘any type of lower bound,
however, this standard could result in
huge amounts of money being spent to
repair even pinhole leaks in equipment
that may soon be obsolete . . . The
intent of the leak repair requirement in
this rule is to assure that substantial
leaks are repaired.’’ (58 FR 28680). Not
finalizing this proposed requirement
reduces the number of leaks that are to
be repaired and accordingly will reduce
the burden of the final rule compared
with the proposed rule for two reasons.
First, the repair effort itself may take
less time. Second, fewer verification
tests on the repairs, and recordkeeping
associated with such tests, will be
needed.
The final regulations include other
provisions to help ensure that leaks are
repaired consistent with the Rule’s
provisions, and to address compliance
and enforceability of the leak repair
provisions. For example, the final
regulations provide for initial and
follow-up verification tests, as discussed
below. They also specify that the leak
rate must be confirmed upon the next
refrigerant addition. EPA recognizes that
this will result in some uncertainty
because the owner or operator will not
know whether the repair is successful
until the leak rate is measured at a
future date. There are two instances in
which EPA will consider a repair to be
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successful beyond calculating the leak
rate upon the next refrigerant addition.
The first instance is if a subsequent leak
inspection does not find any leaks at
all.24 EPA therefore strongly encourages
the owner or operator to repair all
identified leaks, and this provision
provides an incentive to repair all
identified leaks, although EPA is not
finalizing this proposed requirement.
The second instance is if there has not
been a refrigerant addition in 12 months
after the date of repair. If there is not a
need for another refrigerant addition for
at least a year after the date of repair
(and thus the leak rate cannot be
calculated for at least a year) EPA will
consider the repairs to have been
successful.
If upon the next refrigerant addition
the appliance is still exceeding the
threshold leak rate, EPA’s presumption
is that the repair failed. The burden is
on the owner or operator of the
appliance to show that leaks were
repaired to bring the leak rate below the
applicable threshold and that those
repairs held.
One commenter stated that the
greatest value of a leak inspection is on
a system with a known leak. A
comprehensive leak inspection on an
appliance that has exceeded the
applicable leak rate will ensure that the
technician does not stop an inspection
when the first leak is found. Another
commenter encouraged EPA to be
specific that the leak inspection be
conducted on the whole system not just
where the original leak was found.
Another commenter stated that if a
particular circuit in a rack house is
found to be leaking and is subsequently
repaired and passes the verification test,
it would be nonsensical to require the
inspection of other circuits on that
particular appliance.
EPA agrees with these three
commenters. The leak inspection must
encompass all visible and accessible
components of an appliance, with
certain exceptions specified in the
revised rule. The leak inspection is not
complete simply because a single
suspected leak is identified. Only
through an inspection of the whole of
the appliance can an owner or operator
know that the repairs that are to be
made will be sufficient to bring the
appliance below the applicable leak
rate. However, a leak inspection need
24 As discussed previously in this notice, EPA is
finalizing the proposed requirement that the owner
or operator conduct a leak inspection of the
appliance before considering the repair to be
complete. Conducting a comprehensive leak
inspection is the only way to ensure that the owner
or operator can identify the repairs necessary to
bring the leak rate below the applicable level.
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not be performed on other appliances at
that site. As discussed previously in this
notice, EPA is clarifying the definition
of appliance such that each separate
circuit is a separate appliance. While
there could be a benefit to proactively
searching for leaks on all other circuits,
there is no obligation to inspect the
other circuits if only one circuit is
leaking and it has been repaired and the
repair verified.
8. Verification Tests
The prior regulations at § 82.156(i)(3)
required verification tests for repairs to
IPR and federally owned commercial
and comfort cooling appliances
containing an ODS refrigerant.
Verification tests are performed on
appliances, or portions thereof, shortly
after they are repaired to confirm that
leaks have been fixed. Without
verification tests, it may take additional
time for the owner and operator to
realize that a repair has been
unsuccessful and during that time
refrigerant could continue to leak from
the appliance. EPA is extending this
requirement to all required repairs
because ensuring that the repairs are
done correctly the first time is vital to
reducing refrigerant emissions,
regardless of whether the appliance is
used for IPR, commercial refrigeration,
comfort cooling, or is in the category of
‘‘other appliances.’’
EPA is finalizing the requirement at
§ 82.157(e) that owners or operators of
all types of appliances that are subject
to the leak repair requirements
(including those using an ODS or nonexempt substitute refrigerant) perform
both an initial and follow-up
verification of repairs every time the
applicable leak rate is exceeded (unless
a retrofit or retirement plan is being
developed). Most commenters on this
issue supported the requirement for a
follow-up verification test. Commenters
agreed that the combination of an initial
and a follow-up verification test
provides effective confirmation of
successful repair. One commenter stated
that requiring the verification of all
repairs would be excessively
burdensome. The commenter discusses
this burden in the context of the
proposal to repair ‘‘all identified leaks.’’
The commenter continues that if
amendments to the rule for inspections
and repairs are adopted in any form,
EPA should adopt verification
provisions that are limited to significant
leaks or adopt an 80/20 rule to assure
that the majority of leak repairs are
verified by a certified technician or
qualified plant personnel.
EPA disagrees with the comment
about limiting verification provisions to
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significant leaks or adopting an 80/20
rule. Because EPA is not requiring the
repair of all identified leaks in the final
rule, the number of verification tests
should be reduced. However, as
explained above, it is important that all
repairs be verified both for purposes of
compliance and enforceability and for
purposes of avoiding emissions from
leaking appliances. Since owners or
operators have flexibility to determine
which leaks to repair as long as they can
meet the obligation to bring the leak rate
below the applicable threshold, they
may generally consider what are
significant leaks in their repair effort.
The verification tests would only apply
to the leaks that were repaired.
One commenter stated that a followup verification test is unnecessary if
there are periodic leak inspections and
thus they should be eliminated. EPA
disagrees with this comment because a
follow-up verification test and a leak
inspection serve two separate purposes.
The verification test is conducted
shortly after the repairs to confirm the
success of those repairs. The leak
inspections are to identify over the next
year or longer whether new leaks have
developed or whether minor leaks have
become more significant and to
determine the location of such leaks.
EPA requested comments on whether
to require a minimum time between
initial and follow up verification tests,
such as one to three hours, to allow an
appliance to return to normal operating
characteristics and conditions. Many
commenters recommended that EPA not
establish a minimum time. Commenters
suggested that the follow-up verification
test be allowed as soon as the appliance
returns to normal operating
characteristics and conditions.
Requiring a waiting period would
increase costs by requiring an additional
service call. Furthermore, high pressure
systems will reveal whether a leak was
properly repaired almost immediately.
EPA has considered the burden of
conducting verification tests on all
appliances. The Agency understands
that most technicians pressure check
appliances immediately following
repairs. Such pressure checks would
satisfy the initial verification
requirements. EPA is concerned that
follow-up verifications may not be a
part of normal operating procedures for
all repairs. This final rule would allow
both initial and follow-up verification
tests to be conducted during the same
service appointment. Accordingly, EPA
does not expect the requirement for
verification tests to result in a longer
servicing event and thus we do not
expect this requirement to result in
incremental labor costs. However, the
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final rule provides, and EPA reiterates,
that the technician must wait until the
appliance returns to normal operating
characteristics and conditions, which
includes operating temperatures,
pressures, fluid flows, speeds, and other
characteristics, including full charge of
the appliance, that would be expected
for a given process load and ambient
condition during normal operation.
Some commenters requested that EPA
add a reporting requirement for
technicians to provide owners or
operators with the results of the
verification tests. These commenters
expressed that it is difficult to get all of
the documentation that they are
required to maintain from the
technicians who generate those records.
EPA agrees with the need to harmonize
the recordkeeping provisions between
technicians and owners and operators
and understands that in order for
owners and operators to maintain the
required records of the verification tests,
they would need to obtain relevant
information from the person conducting
those tests. For these reasons, EPA is
adding a requirement for technicians to
provide documentation at the
conclusion of each service visit to
§ 82.157(l)(5).
Two commenters suggested that EPA
provide an exception for situations
where a follow-up verification test is
impossible, for example, when it would
be unsafe to be present when the system
is at normal operating characteristics
and conditions. One of the commenters
recommended that EPA allow a
standing deep vacuum test in lieu of a
follow-up verification test. EPA
responds that the Agency attempted to
address similar concerns from
commenters in 1995. Examples
included leaks inside a heat exchanger,
compressor internals, locations that
must be insulated prior to start-up, and
locations in close proximity to
dangerous hot equipment or moving
parts where access is not possible after
reassembly (See 60 FR 40429). At that
time, the Agency amended the
regulation at § 82.156(i)(3) to state that
‘‘[i]n all cases, the follow-up verification
test shall be conducted at normal
operating characteristics and conditions,
unless sound professional judgment
indicates that tests performed at normal
operating characteristics and conditions
will produce less reliable results, in
which case the follow-up verification
test shall be conducted at or near the
normal operating pressure where
practicable, and at or near the normal
operating temperature where
practicable.’’ EPA had proposed to
remove that provision to make the
regulation clearer and less ambiguous.
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Instead, EPA is modifying that provision
in the revised regulations at
§ 82.157(e)(2) to more clearly address
the concern about safety raised by the
commenters as well as the original
intent of that provision.
EPA is also finalizing the proposed
change to clarify that owners or
operators may conduct as many repair
attempts as needed within the initial 30
days (or longer if an extension is
available) to repair the appliance.
Consequently, the Agency is explicitly
allowing unlimited verification tests
within the required repair window.
Commenters were supportive of this
clarification.
9. Extensions to the 30-Day (or 120-Day)
Repair Requirement
The prior regulations contained
extensions to the repair or retrofit/
retirement deadlines under four
conditions:
• The appliance was mothballed
(available for all appliances)
(§ 82.156(i)(10));
• The appliance was located in an
area subject to radiological
contamination or where shutting down
the appliance would directly lead to
radiological contamination (available for
federally owned appliances)
(§ 82.156(i)(1)(ii) and (i)(5)(ii));
• Applicable federal, state, or local
regulations made a repair within 30 or
120 days impossible (available for IPR)
(§ 82.156(i)(2)(i)); or
• Parts were unavailable (available for
IPR) (§ 82.156(i)(2)(i)).
While not an extension, IPR facilities
were also allowed an initial repair
period of 120 days rather than 30 days
if an industrial process shutdown is
required to complete the repair. In
addition, an exemption to the repair
requirement was allowed for all types of
appliances if a dated retrofit or
retirement plan is developed within 30
days and is then implemented within
one year of the date developed.
EPA proposed to provide these
extensions to all appliance categories,
not just IPR and federally owned
equipment. EPA is finalizing these
proposed extensions, with some
changes from the proposal. Based on
comments received, EPA is finalizing a
modified version for the extension for
when necessary parts are unavailable.
More specifically, EPA is clarifying that
the extension is allowed when
components that must be replaced as
part of the repair are not available
within the initial 30 day (or 120 day)
repair time frame. Also based on
comments, EPA is modifying the
proposed changes to allow these
extensions upon notification to EPA,
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unless EPA notifies the source
otherwise, rather than requiring owners
or operators to request an extension and
wait for EPA approval. Taken together,
these changes significantly reduce the
burden of the leak repair regulations on
owners of comfort cooling and
commercial refrigeration appliances and
to a lesser extent IPR.
Based on comments received, EPA is
modifying the extension for when
necessary parts are unavailable. Many
commenters supported EPA’s proposal
to allow additional time to acquire and
install a replacement for a leaking
component. While EPA views installing
a component as a type of repair, the
comments indicate that some owners or
operators consider the replacement of a
component as different than the repair
of an appliance. Replacing a component
is more costly, requires more time to
order, and requires more system
downtime to install. Owners or
operators may attempt to repair a leak
but upon a failed follow-up verification
test may ultimately decide that the
whole component where the leak is
located needs to be replaced. By the
time a decision is made to replace the
whole component, there is little time
remaining within the initial 30 day
repair window to procure and install
that component.
Based on these comments, EPA is
modifying the extension for when
necessary parts are unavailable by
clarifying that the extension is allowed
when components that must be replaced
as part of the required repair are not
available within the initial 30 day time
frame (or 120 days if an industrial
process shutdown is required). This
extension encourages the proper repair
of an appliance, which in EPA’s view,
includes the replacement of major
components if necessary, rather than
simply patching those components, an
approach which may not be successful
in the longer term. Furthermore, some
owners or operators would prefer to
replace a faulty component before they
are required to retrofit or retire an entire
appliance and believe this could, in
many instances, be an equally effective
means to address needed repairs. This
extension should also reduce the
potentially large burden upon owners or
operators of requiring a large-scale
retrofit or retirement when replacing the
leaking component might satisfactorily
repair the appliance.
The extensions for repair in the prior
regulations are open-ended. While those
regulations provided only the additional
time needed to receive delivery of the
necessary parts, it did not set an outer
limit for delivery nor did it clearly
provide time to install the components
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once they are received. EPA is finalizing
its proposal to set a limit on the
extension for the installation of a
necessary component. The owner or
operator must complete the repair
within 30 days after receiving delivery
of the component and the total
extension may not exceed 180 days (or
270 days if an IPR shutdown is
required).
To qualify for any of the extensions in
this section, owners or operators must
perform all repairs that can be
completed within the initial 30 or 120
day period. Initial verification tests
must be performed on all completed
repairs. A final verification test may not
be appropriate for the completed repairs
depending on the nature of the
remaining repairs and state of the
appliance. The owner or operator must
also document all such repair efforts
and the reason for the inability to make
the repair. This would include a written
statement from the appliance or
component manufacturer or distributor
stating the unavailability of the
necessary component and the expected
delivery date.
Some commenters stated that any
changes to nuclear generating stations
must undergo extensive engineering and
risk review processes, which
recommends against the requirement to
retrofit if they cannot repair the system.
The commenter noted that extended
downtime of safety systems in such
facilities will increase risk to workers
and may conflict with federal
regulations. EPA responds that the
Agency is providing extensions for any
appliance type subject to radiological
contamination. Previously, this
extension was available only for
federally owned appliances. EPA is also
not changing the open-ended nature of
the extensions due to radiological
contamination or compliance with
applicable federal, state, or local
regulations. Together, this should allow
repairs in accordance with the
commenter’s schedule.
In some instances, encouraging repair
may be a preferable environmental
outcome to requiring the retrofit or
retirement of a leaking system.
Appliances that are to be retired are not
required to be repaired. Thus, an
appliance may continue to leak for up
to a year (in addition to extension
opportunities). Under this final rule,
leaks must be repaired to bring the leak
rate below the applicable threshold
within 30 days and any component
replacement must occur within 6
months. The extension could accelerate
the time by which the appliance will
stop releasing refrigerants by making
leak repair seem more attractive or
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feasible for some owners or operators
compared with retrofit or retirement of
a leaking system.
Based on the comments received, EPA
is allowing these extensions to be
automatic, so long as EPA is notified.
Previously, owners or operators would
have to request these extensions from
EPA and wait for them to be approved.
One commenter requested that EPA
automatically grant the extension where
there are limiting federal, state, or local
laws so long as the owner or operator
maintains the proper documentation
that demonstrates they satisfy the
condition. Another commenter
requested that EPA harmonize the
timing of the request with the 30 day
time frame to repair. Previously, a
request had to be made within 30 days
of exceeding the leak rate but EPA had
an additional 30 days to approve or
deny the request. There was no clear
tolling of the 30 day repair clock which
meant a system could be denied an
extension after the repair deadline
expired. EPA is resolving these
conflicting schedules by considering
repair requests approved unless EPA
notifies the owner or operator that it is
not approved.
Owners or operators must provide the
same information to EPA as was
contained in a request for an extension
under the prior regulations. The request
must include: Identification and address
of the facility; the name of the owner or
operator of the appliance; the leak rate;
the method used to determine the leak
rate and full charge; the date a leak rate
above the applicable leak rate was
discovered; the location of leak(s) to the
extent determined to date; any repair
work performed thus far, including the
date that work was completed; the
reasons why more than 30 days are
needed to complete the repair; and an
estimate of when the work will be
completed.
If an extension to the earlier
submitted completion date is necessary,
the owner or operator must still submit
a request to EPA with a new estimated
date of completion and documentation
of the reason for that change. The
request must be within 30 days of
identifying that further time is needed.
The owner or operator must keep a
dated copy of this submission and proof
that it was submitted.
10. Retrofit or Retirement Plans
The previous regulations at
§ 82.156(i)(6) required an owner or
operator of an appliance that exceeds
the applicable leak rate to develop a
retrofit or retirement plan generally
within 30 days if they were unable to
repair the leak or simply choose not to
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repair the leak and instead retire the
appliance. EPA proposed four revisions
to the retrofit/retirement provision.
First, EPA proposed to remove the
requirement to retrofit or retire an
appliance after a failed follow-up
verification test. Second, EPA proposed
to remove the requirement to use a
substitute with a lower or equivalent
ODP. Third, EPA proposed to establish
explicit elements of a retrofit/retirement
plan. Fourth, EPA proposed to require
that all identified leaks be repaired as
part of implementing any retrofit plan.
EPA is finalizing these four proposals,
with some modifications based on
comments.
Failed Verification Tests. The prior
regulations required owners or operators
of IPR using an ODS refrigerant that
have failed a follow-up verification test
to develop a retrofit or retirement plan
within 30 days of the failed verification
test and implement the plan within one
year. Owners or operators of comfort
cooling and commercial refrigeration
appliances were not required to perform
verification tests on their repairs and
therefore were not subject to this trigger
to develop a retrofit or retirement plan.
As discussed in Section IV.F.8 of this
notice, EPA is extending the
requirement to conduct verification tests
on repairs made to commercial
refrigeration and comfort cooling
appliances, increasing the potential
universe of appliances affected.
Both prior to initiating this
rulemaking and through comments
received on the proposed rule,
appliance owners/operators have
expressed their concern to EPA that the
requirement to retrofit or retire an entire
appliance because it has failed a
verification test is not always practical
or necessary. In their view, a failed
verification test should indicate to a
technician that further repair work
needs to be performed to properly fix
the leak, not a regulatory requirement to
begin retrofitting or retiring the
appliance. As EPA discusses in the
section on follow-up verification tests,
in the revisions finalized in this rule
EPA is allowing as many repairs and
follow-up verification tests as are
necessary to fix the appliance within the
required time frame. Accordingly,
consistent with these comments, the
revised regulations no longer require an
owner or operator to retrofit or retire an
entire appliance simply because it has
failed a verification test.
EPA proposed that failing to comply
with ‘‘paragraphs (e) and (f) of this
section,’’ which included the proposed
requirement to repair all identified leaks
and verify all repairs, would trigger a
requirement to develop a retrofit or
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retirement plan within 30 days, rather
than a failed verification test. As
discussed above, EPA is not finalizing
the proposal to repair all identified
leaks; therefore, EPA is modifying the
trigger to develop a retrofit or retirement
plan accordingly. In this final rule, a
plan must be developed within 30 days
of discovering that an appliance
continues to leak above the applicable
leak rate after having conducted the
necessary repairs and verification tests.
This provision as finalized is also
narrower and clearer than a ‘‘failure to
comply with paragraphs (e) and (f) of
this section,’’ which EPA proposed,
because the proposed language could
have been interpreted to also include
failure to maintain records rather than
failure to repair the appliance. EPA has
added a provision to clarify that owners
or operators are still required to develop
a retrofit or retirement plan even if they
do not affirmatively choose to retrofit,
retire, or repair their leaking appliance.
Retrofit/Retirement ODP. EPA’s prior
regulations required that appliances
containing an ODS refrigerant, when
being retrofitted or retired/replaced, use
a refrigerant with an equivalent or lower
ODP. EPA created this provision to
foster the transition from refrigerants
with high ODPs to ones with a lower or
zero ODP.
EPA proposed to remove this
requirement and allow for retrofits or
retired/replaced appliances to use any
refrigerant (other than the one currently
used in that appliance in the case of
retrofits), so long as it is acceptable for
use under SNAP. This proposed
revision would not relax the prior
requirements with respect to HCFCs
since the regulations implementing
sections 605 and 606 of the CAA already
prohibit the use of virgin HCFCs in
appliance manufacture (as of January 1,
2010, for HCFC–142b and HCFC–22;
and as of January 1, 2020, for other
HCFCs) and thus installation and
retrofit of such appliances would not
occur. As explained in the proposal,
requiring the use of a refrigerant with a
lower or equivalent ODP could be
problematic if the requirement were
read strictly because some non-exempt
substitutes like HFOs that are not
classified as an ODS have a negligible,
but non-zero, ODP. For example, trans1-chloro-3,3,3-trifluoroprop-1-ene (also
known as 1233zd(E)) has an ODP
between 0.00024 to 0.00034 and a GWP
between 4.7 to 7 (see 77 FR 47768).
Under a strict interpretation, an owner/
operator would not be able to replace an
R–134a chiller with a 1233zd(E) chiller
in the future because R–134a has an
ODP of zero and the olefinic refrigerant
has an ODP greater than zero. This
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could prevent transition to low-GWP
alternatives.
Some commenters suggested that EPA
should require a retrofit to an acceptable
substitute under SNAP, with one
commenter suggesting that it be a lower
GWP alternative than the refrigerant
currently being used. Another
commenter suggested that if the SNAPapproved refrigerant with the lowest
available GWP is being used, EPA
should allow for documented repairs
and quarterly leak inspection in place of
forced system retirement.
Other commenters questioned the
value of retrofitting a system that
already uses substitute refrigerants and
suggest that retrofit plans should not be
required for non-ODS equipment. One
commenter viewed the existing rules as
providing an opt-out incentive to
owners that voluntarily retrofit to a nonODS. The commenter requested that
EPA retain this feature so that owners
that switch from a high-GWP refrigerant
to a low-GWP refrigerant similarly
benefit. Similarly, a commenter
questioned how retrofitting helps the
owner/operator if the rules for HFCs are
the same as for ODS.
EPA responds that the Agency is
finalizing provisions that encourage the
repair of leaking systems instead of
requiring the retrofitting or retirement of
those systems. Most significantly, EPA
is finalizing the proposal to allow all
comfort cooling, commercial
refrigeration, and IPR appliances the
opportunity to extend the deadline to
repair leaking appliances beyond 30
days (or 120 days if an industrial
process shutdown is required). It is not
the Agency’s intention to use the retrofit
or retirement requirements in the
subpart F regulations to dictate specific
refrigerant choices. The revisions to
these regulations are intended to
provide as much flexibility to the owner
or operator to decide what is
appropriate for their system.
Elements of a Retrofit or Retirement
Plan. EPA has not previously specified
what elements should be included in a
retrofit or retirement plan. Due to the
complex nature of refrigeration
appliances, an exhaustive list may not
fit all types of appliances considering
the wide array of configurations and
refrigerant choices. Based on requests
from stakeholders, EPA proposed a
minimum set of information that is
likely to be needed during any type of
retrofit or retirement to be included in
a plan, including:
• Identification and location of the
appliance;
• Type (i.e., ASHRAE number) and
full charge of the refrigerant currently
used in the appliance;
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• Type (i.e., ASHRAE number) and
full charge of the refrigerant to which
the appliance will be converted, if
retrofitted;
• Itemized procedure for converting
the appliance to the new refrigerant,
including changes required for
compatibility (for example, procedure
for flushing old refrigerant and
lubricant; and changes in lubricants,
filters, gaskets, o-rings, and valves), if
retrofitted;
• Plan for the disposition of
recovered refrigerant;
• Plan for the disposition of the
appliance, if retired; and
• Schedule for completion within one
year of the appliance retrofit or
retirement.
Some commenters stated that this is
excessively detailed and includes
information that is unlikely to be known
immediately upon deciding to retrofit or
retire an appliance. One commenter
noted that it will take time to perform
the necessary engineering evaluations
and investigate the costs and timing
associated with the available options.
The commenter provided revised
regulatory text to remove reference to
the type of refrigerant and full charge for
the retrofitted system, the procedure for
converting the appliance to a new
refrigerant, and the schedule for
conducting the retrofit or retirement.
EPA responds that the shortest time
frame in which a retrofit or retirement
plan would have to be developed is
when, upon discovering a leak, the
owner or operator immediately chooses
to retrofit or retire the appliance upon
discovering that leak. In that
circumstance the plan would be
developed within 30 days. In all other
circumstances, the owner will have 30
days from when repair attempts have
failed, including repairs attempted
under various extensions, to develop the
plan.
While some information may not be
available in that time frame, the owner
or operator can develop an initial plan
within 30 days and then modify it as
additional information is determined.
For example, owners or operators may
not know within the allotted time frame
what the itemized procedure will be
until they finalize plans for the retrofit
or retirement. The plan could indicate
what steps must be taken in order to
have enough information to make the
necessary determinations. The
information required in the plan is not
excessively detailed because the owner
or operator will need to know this
information in order to properly dispose
of the old appliance and install the
replacement.
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One commenter also stated that the
plan does not need to be kept onsite
with the appliance, so long as it can be
made available to EPA and that it is also
unnecessary for a plan to be signed
because staff, including the person who
initially signed the plan, could change.
The commenter believes it is sufficient
for EPA to be told who is responsible for
the plan when it is provided to the
Agency. EPA responds that it is
appropriate for the plan to be accessible
at the site of the appliance. The
previous rules required that the original
plan or a legible copy be kept at the site
of the appliance. This could imply
maintaining a printed version of the
plan with the appliance. EPA is
finalizing the proposal to allow for the
plan to be ‘‘accessible’’ at the site of the
appliance, which includes an option to
have the plan be ‘‘accessible’’ in
electronic format. This provides
sufficient flexibility for the plan’s
storage while still allowing for the plan
to be quickly available upon request. It
is also important that the plan be signed
so that the authorized representative has
taken responsibility for the plan and so
that EPA can identify who that person
is and the date the plan was created.
Requirement to Repair Appliances
Undergoing Retrofit. Under the prior
regulations at § 82.156(i)(6), owners or
operators were not required to repair
leaks if they developed a retrofit or
retirement plan. EPA proposed to
require that all identified leaks be
repaired as part of any retrofit under
such a plan. EPA is finalizing the
requirement that a system being
retrofitted must be simultaneously
repaired as part of the retrofit. EPA is
also finalizing the proposed requirement
that the owner or operator repair ‘‘all
identified leaks’’ as part of the retrofit,
rather than allowing selective repairs
that would bring the appliance below
the applicable leak rate. Although this
differs from the requirements for leak
repair discussed in Section IV.F.7, a
retrofit is a more extensive change to a
system, during which time components
may be replaced and more
comprehensive leak repair can be
performed.
11. Extensions To Retrofit or Retire
Appliances
Under the prior regulations at
§ 82.156(i)(6), an owner or operator
generally was required to complete the
retrofit or retirement of a leaking
appliance containing an ODS within
one year of creating a retrofit or
retirement plan. Extensions were
available in the following
circumstances:
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• If delays were caused by
requirements of other applicable federal,
state, or local laws or regulations
(available for IPR);
• If a suitable replacement refrigerant
with a lower ODP was unavailable
(available for IPR);
• If the supplier of the appliance or
a critical component quoted a delivery
time of more than 30 weeks from when
the order was placed (available for IPR);
• If complications presented by the
appropriations and/or procurement
process resulted in a delivery time of
more than 30 weeks (available for
federally owned appliances); or
• If the appliance was located in an
area subject to radiological
contamination and creating a safe
working environment will require more
than 30 weeks (available for federally
owned appliances).
EPA proposed at § 82.157(i) four
substantive revisions to these
extensions. First, as with all other leak
repair provisions, EPA proposed to
apply these extensions to appliances
containing non-exempt substitute
refrigerants. EPA is finalizing this
revision, as proposed.
Second, EPA proposed to remove the
extension for when a suitable
replacement refrigerant with a lower
ODP is not available. EPA established
this extension when certain applications
using CFCs did not have a suitable
HCFC substitute. Today, there are many
more substitutes for ODS refrigerants. In
fact, few appliances can be newly
installed or retrofitted with virgin ODS
because of the HCFC use restrictions
implementing section 605 of the CAA.
As discussed previously in this notice,
EPA is removing the requirement that a
retrofit use a refrigerant with a similar
or lower ODP. Therefore, the rationale
for this extension no longer exists and
EPA is removing it as proposed. EPA is
accordingly also removing the term
suitable replacement refrigerant from
the definitions in § 82.154, as proposed.
Third, EPA proposed a new extension
at § 82.157(i)(1) if the appliance is to be
retrofitted to or replaced with a
refrigerant that is exempt from the
venting prohibition as listed in
§ 82.154(a). In that situation, EPA
proposed to allow an extension up to 18
months. Whereas the prior extensions
were only available to IPR and federally
owned appliances, EPA proposed to
make this extension available to comfort
cooling and commercial refrigeration
appliances as well.
Some commenters were supportive of
this proposal as a way to encourage
transition to zero-ODP and low-GWP
refrigerants. Other commenters were
opposed to the proposal because it
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encourages the use of refrigerants that
are more toxic, hazardous, or flammable
than HFCs.
EPA responds that the first comment
is correct that the refrigerants that are
exempt from the venting prohibition,
such as carbon dioxide (R–744), and the
hydrocarbon refrigerants ethane (R–
170), propane (R–290), isobutane (R–
600a), and R–441A in certain uses, have
an ODP of zero and low GWPs ranging
from one to eight. EPA further notes that
subject to 40 CFR subpart G, many of
the refrigerants exempt from the venting
prohibition are not acceptable when
retrofitting certain types of equipment;
hence, in most cases these exempt
refrigerants would be used in new
equipment replacing the leaking system.
One reason to provide more time for
retrofitting or replacements for exempt
substitutes is to allow time to purchase
and install new equipment. With
respect to the points made by the
second comment, the refrigerant must
be approved under SNAP for the enduse in order to be used. A company
choosing to move to one of these
alternatives would reasonably be
expected to consider safety
characteristics of the refrigerant.
Moreover, for refrigerants that are
exempt from the venting prohibition,
the Agency has already determined that
the release of these substances do not
pose a threat to the environment as part
of the decision to exempt them from the
venting prohibition. Accordingly, EPA
is finalizing this extension as proposed.
Fourth, the prior regulations at
§ 82.156(i)(3)(v) relieved owners and
operators of IPR appliances of the
requirement to retrofit or retire their
appliances if they established that the
appliance’s leak rate is below the
applicable rate within 180 days of an
initial failed follow-up verification test
and they notified EPA within 30 days of
that determination. EPA proposed to
remove this provision because it was
infrequently used and because other
extensions, in particular the extension
to receive a replacement component,
should provide sufficient flexibility for
IPR and other appliances.
Multiple commenters recommended
that EPA retain this exemption because
there may be situations where the root
cause of a leak is not identified until
after a retrofit/retirement plan is
developed. The commenters stated that
an appliance need not be retrofitted or
retired if it can be demonstrated that it
is repaired.
Based on these comments, EPA is not
finalizing its proposal to remove that
provision. Just because it is not
frequently used does not mean that it
may not be used in the future, especially
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since EPA is expanding the universe of
appliances subject to the retrofit/
retirement plan requirements to include
those that use non-exempt substitute
refrigerants. EPA agrees that an
appliance need not be retrofitted or
retired if it can be demonstrated that the
repairs bring the leak rate of the
appliance below the threshold leak
rates. In the instance of a retrofit,
because EPA is requiring that all
identified leaks be repaired, it is
possible that the appliance could be
repaired to such an extent as to not need
to complete the retrofit.
EPA is concerned, however, about
whether this provision could provide a
mechanism to delay repairs. To
discourage this, EPA is requiring that all
identified leaks be repaired consistent
with the retrofit requirements, rather
than merely fixing leaks sufficient to
bring the appliance below the
applicable leak rate, which is what EPA
is finalizing for repairs required under
§ 82.157(d). EPA is also revising the
reporting elements that were found in
the prior regulations related to this
provision. Rather than allowing the
owner or operator to merely provide
notice to EPA, the Agency is requiring
that the owner or operator request that
EPA relieve them of the obligation to
retrofit or retire the appliance. Like
other requests in the leak repair
provisions, the request will be
considered approved unless EPA
notifies the owners or operators
otherwise within 60 days of receipt. The
request must also provide other
information about the equipment and
the repair, such as an explanation of
why the repair was not conducted
within the time frames required under
§ 82.157(d) and (f). This approach
provides flexibility for owners and
operators while avoiding it becoming
simply an extension of the duty to
repair because of the increased level of
repair and the information requirements
associated with its use. EPA anticipates
this will be most useful in situations
where the root cause of the leak is not
identified until after a retrofit/
retirement plan is developed.
Finally, EPA proposed to revise the
extension for IPR to implement a retrofit
plan where a supplier of the appliance
or a critical component has quoted a
delivery time of more than 30 weeks
from when the order is placed. EPA
proposed to modify this to mirror the
extension allowed for the repair of an
appliance in this situation, such that the
appliance or appliance components
would have to be installed on the
retrofitted appliance within 120 days
after receiving delivery of the necessary
parts. Previously, this extension allowed
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for one additional year beyond the oneyear retrofit period. EPA inadvertently
removed a provision, found previously
at § 82.156(i)(7)(iii), that further
extended this extension for the delivery
and installation of critical components
without discussion in the notice of
proposed rulemaking. EPA is restoring
that provision at § 82.157(i)(2)(iii). EPA
notes that the Agency correctly
proposed a similar extension for
federally owned appliances in
§ 82.157(i)(3)(iii).
12. Chronically Leaking Appliances
EPA proposed to add a total leak limit
to the repair requirement to address
chronically leaking systems. Under that
proposal, an appliance containing 50 or
more pounds of refrigerant may not leak
more than 75 percent of its full charge
in two consecutive twelve-month
periods and remain in use. If an
appliance exceeded the two year leak
limit, the owner or operator would be
out of compliance until the appliance
was retired or mothballed and later
retired.
For the proposed rule, EPA reviewed
data reported to CARB to determine
whether such a total leak limit would be
necessary and, if so, what the limit
should be. In 2013, approximately 8
percent of reporting appliances had
leaked more than 75 percent of their full
charge over the calendar year and were
responsible for 38 percent of total
reported emissions. Due to the high
chronic leaks of such appliances, the
environmental benefit of establishing a
cumulative leak limit could be large.
Nonetheless, the number of appliances
affected by this proposed limit should
be low.
Environmental NGOs and state
pollution control agencies were
supportive of the proposed two year
leak limit, with one NGO suggesting a
leak limit of 55 percent instead of 75
percent. A chemical manufacturer was
also supportive if the proposal allowed
an exemption for unavoidable
catastrophic leaks. Many other
commenters expressed strong
opposition to the proposed two year
leak limit, describing it as redundant,
unnecessary, or punitive. Commenters
state that there are many reasons why an
appliance may leak in excess of 75
percent for two consecutive years even
though the appliance is in good
condition. For example, commenters
expressed that it is possible for two
large volume leaks to occur from
unrelated components. Multiple
commenters stated that owners should
not have to mothball an appliance
where the cause of the leak can be
remedied by the replacement of a
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component. Commenters that operate
supermarkets were especially concerned
about the requirement to retire the
appliance given that EPA’s definition of
appliance includes all of the display
cases and coolers attached to the
refrigerant circuit. This requirement
would result in the scrapping and
replacement of perfectly good
components. Another commenter for
similar reasons suggested that IPR be
exempt from the retirement
responsibility due to their unique
nature, although the commenter
believed comfort cooling and
commercial refrigeration could remain
subject to the 2 year leak limit. If EPA
chose to finalize this leak limit, many
commenters requested an off-ramp
provision from the automatic retirement
for catastrophic leaks resulting from
accidents, vandalism, acts of nature,
non-mechanical failures, or on a caseby-case decision upon notifying EPA.
In response to the significant concerns
raised by commenters, EPA is not
finalizing this proposed two year leak
limit. EPA is aware of the many
situations in which a system can leak
large quantities of refrigerant in
consecutive years. For instance, it is
possible, though rare, for two
catastrophic leaks to occur on the
system through no fault of the operator.
Although EPA requested comments on a
possible exemption for catastrophic
leaks, it is clear from the comments that
there is a wide range of opinions about
what a catastrophic leak is, and what
can cause such a leak. Because EPA is
not finalizing this provision, it is not
defining the term catastrophic leak at
this time.
EPA also assumed that, absent
catastrophic leaks, it was unlikely for a
system to be in compliance with other
parts of subpart F while still leaking at
this rate. EPA generally anticipates that
a leaking appliance will be repaired
within 30 days to six months. However,
the leak repair regulations contemplate
situations in which an owner or
operator is unable to repair or
subsequently retrofit a system in a
timely fashion (e.g., federally owned
equipment located in areas subject to
radiological contamination,
unavailability of necessary parts for IPR,
or adherence to local, State, or federal
laws hinder repairs for IPR). Based on
feedback from stakeholders from
meetings docketed in this rule, EPA is
aware of instances where appliances
leak refrigerant in excess of 75 percent
but are still in compliance with the
other leak repair regulations.
While EPA wishes to reduce
chronically leaking systems, EPA
believes other practices required under
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this final rule will help address chronic
leakers. For example, strengthening the
leak repair regulations by lowering the
rate at which the initial repairs must be
performed, requiring leak inspections
prior to those repairs, verification tests
of those repairs, and subsequent leak
inspections after the repair, will reduce
the number of chronically leaking
systems.
Data received from CARB and other
sources indicate that there are systems
that may not be adhering to the leak
repair requirements of subpart F. Some
commenters, even those opposed to the
specific proposal offered by EPA, agree
that the worst chronic leaking systems
may warrant special consideration.
However, they found the proposed
provision both overly broad and overly
harsh in its outcome. Some commenters
proposed alternate methods of
addressing chronically leaking systems.
One commenter stated that a
requirement to properly document
causes for large leaks and to establish
corrective actions would likely be more
effective at reducing large leaks than
simply imposing a two year leak limit
that would result in a unit being retired.
CARB recommended that if both (a) the
annualized leak rate exceeds 100
percent more than 4 times in the
previous 365 days and (b) more than
120 percent of the total charge has been
added in the previous 365 days, the
system or faulty component should be
retired. EPA considered CARB’s
approach and finds it attractive for a
couple of reasons. This alternative has
the benefit of considering the number of
refrigerant additions in addition to the
total amount of refrigerant released,
thereby removing appliances affected by
catastrophic leaks. It also would take
effect after one year, which will cut in
half the time in which refrigerant is
being released into the environment.
However, this approach would still
require the automatic retirement of
these systems, which some commenters
found to be too strict a penalty.
The chronically leaking appliance
provision, as proposed, would apply to
appliances containing 50 pounds or
more of refrigerant that leak more than
75 percent of the full charge in each of
two consecutive twelve-month periods.
Based on the comments, EPA is revising
the chronically leaking appliance
provision. EPA is requiring that owners
or operators of appliances that leak 125
percent of their full charge in a calendar
year submit a report to EPA detailing
their repair efforts. The reports must be
submitted no later than March 1 of the
year following the 125 percent or greater
leak. Through that report, the owner or
operator must demonstrate that they are
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in compliance with the repair
provisions or the retrofit or retirement
provisions in this section. In some
cases, owners or operators may have
already provided information to EPA as
part of a repair or retrofit extension
request.
By raising the threshold, EPA intends
to avoid capturing appliances affected
by unavoidable losses of full charge.
Systems would have to lose their full
charge and then a significant quantity
more. Using CARB data and scaling up
to the whole U.S., EPA estimates that
1,425 appliances (or 0.1 percent of all
appliances with 50 or more pounds of
refrigerant) would be affected at 125
percent of full charge.
Like CARB’s approach, this would
apply after one year rather than waiting
for a second year of high leaks. As such,
it will catch chronic leakers sooner than
the provision EPA proposed. Several
commenters contended the opportunity
for a case-by-case determination is
necessary to account for the variety of
situations that might trigger the
chronically leaking appliance
provisions. They contended that
without the opportunity for a case-bycase determination, the provision will
force the retirement of working
equipment. EPA’s revised approach is
similar to what many commenters
suggested in that it allows for a case-bycase discussion after notifying EPA.
Adding this reporting requirement also
furthers EPA’s goal of revising these
regulations to improve enforcement and
compliance of the regulations in subpart
F. This will incentivize many owners
and operators to improve their systems
to ensure that they do not trigger this
reporting requirement.
Comments were mixed as to whether
the chronically leaking appliance
provisions should be calculated based
on calendar year, 12-month consecutive
periods, or whether regulated entities
should be given the discretion to choose
one or the other. These concerns are
partially moot, given that EPA has
changed this requirement to allow for
reporting to EPA in lieu of a retrofit or
retirement. EPA is finalizing provisions
stating that the 125 percent is based on
calendar year so that entities do not
need to calculate refrigerant additions
on a rolling basis.
13. Recordkeeping
The prior regulations contained
recordkeeping and reporting provisions
for all of subpart F at § 82.166. As
proposed, EPA is finalizing a
recordkeeping paragraph at § 82.157(l)
and a reporting paragraph at § 82.157(m)
within the leak repair section to make
these requirements easier to locate.
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The prior regulations also required
that certain records be kept in hard copy
at the site of the appliance. Under the
revisions finalized in this rule, EPA is
explicitly allowing, though not
requiring, electronic records in this final
rule. EPA recognizes that many
companies employ electronic databases
to store and track records. An electronic
recordkeeping system has advantages to
paper records, and EPA encourages
owners and operators of appliances to
use one of these systems to track
refrigerant additions and other required
records. Electronic systems allow for
more comprehensive refrigerant
management and can help identify leaky
appliances earlier. These records must
still be accessible onsite if an EPA
inspector visits a facility, but that access
can occur through downloading or
printing the records from an online
system.
Owners and operators. The previous
rules required owners and operators to
maintain service records documenting
the date and type of service, as well as
the quantity of ODS refrigerant added.
EPA proposed to add specific
recordkeeping requirements to ensure
that the owner or operator is aware of
the leak rate. EPA also proposed to
require that the owner or operator
maintain records of all calculations,
measurements, and assumptions used to
determine the full charge and any
revisions made to the full charge over
time. EPA also proposed records for the
leak inspections or automatic leak
detection equipment, verification tests,
and seasonal variances.
Some commenters stated that the
recordkeeping for the newly proposed
requirements will be a significant
burden. One commenter stated that the
recordkeeping from all of the leak
inspections would be a large burden and
urged EPA to minimize that burden in
the final rule. Another stated that
requiring detailed information on the
location of all repaired leaks with the
type of verification test would be a
substantial burden and would require
enhanced service records tailored to
individual equipment. The commenter
suggested EPA require instead only the
date and results of initial and follow-up
verification tests.
EPA responds that the Agency
recognizes the concerns about the extent
of the proposed recordkeeping burden.
EPA is finalizing the recordkeeping
requirements as proposed but is
modifying the final rule to reduce the
number of such records. First, EPA is
only requiring leak inspections on
systems that have exceeded the
applicable leak rate, rather than on all
appliances. EPA estimates that the
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universe of affected appliances will
decrease by 81 percent relative to the
proposal (from 1.5 million to 282,000
appliances). Though there are fewer leak
inspections, EPA estimates a higher
total burden because the Agency has
increased the estimates for the costs of
each inspection based on public
comments. Second, EPA is only
requiring repairs sufficient to bring the
leak rate below the threshold leak rate,
rather than requiring the repair of all
identified leaks (unless the owner or
operator chooses to calculate their leak
rate using the Rolling Average method).
There should be fewer verification tests
and thus less to record.
EPA is finalizing the leak inspection
records as proposed. Specifically,
owners or operators must keep records
of leak inspections that include the date
of inspection, the method(s) used to
conduct the leak inspection, a list of the
location of each leak that was identified,
and a certification that all visible and
accessible parts of the appliance were
inspected. The specificity of the leak
inspection documentation is
appropriate because this information
will help demonstrate that the repair
has brought the appliance’s leak rate
below the threshold leak rate. This
information would allow the owner or
operator to demonstrate, if needed, that
a further exceedance of the leak rate
threshold after repairing leaks is due to
a new leak rather than a leak that was
previously identified but not repaired.
EPA is also finalizing the verification
test records as proposed. Specifically,
owners or operators must maintain
records that include the location of the
appliance, the date of the verification
tests, the location of all repaired leaks
that were tested, the type of verification
test used, and the results of those tests.
It is important to document that each
specific repair was verified so as to
determine whether a repair was
successful and whether the leak has
been addressed. EPA is not requiring
such specificity as a schematic of that
individual appliance showing the
locations of all repairs and verification
tests. However, information should
allow a technician to generally know
which components of the appliance
were repaired.
In this final rule, EPA is establishing
the recordkeeping requirements
described generally in this section for
owners and operators of appliances
normally containing 50 or more pounds
of class I, class II, or non-exempt
substitute refrigerant. All records
required in § 82.157(l) must be
maintained for at least three years.
• Maintain records documenting the
full charge of appliances;
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• Maintain records, such as invoices
or other documentation showing when
refrigerant is added or removed from an
appliance, when a leak inspection is
performed, when a verification test is
conducted, and when service or
maintenance is performed;
• If using an automatic leak detection
system, maintain documentation that
the system is installed and audited or
calibrated annually and records of when
the monitoring system identifies a leak
and the location of the leak;
• Maintain retrofit and/or retirement
plans;
• Maintain retrofit and/or extension
requests submitted to EPA;
• If a system is mothballed to
suspend a deadline, maintain records
documenting when the system was
mothballed and when it was brought
back on-line (i.e., when refrigerant was
added back into the appliance);
• Maintain records of purged and
destroyed refrigerant if excluding such
refrigerant from the leak rate;
• Maintain records to demonstrate a
seasonal variance; and
• Maintain copies of any reports
submitted to EPA under § 82.157(m).
Technicians. The prior rules required
technicians to provide an invoice or
other documentation that includes the
amount of ODS refrigerant added to the
owner or operator. This would likely
already include information on the
system serviced, the date, and the
company/person servicing the
appliance. It would likely also include
some description of the service
provided. However, the information that
the technician was required to provide
did not match the information that the
owner or operator was required to
maintain. The limited records that the
prior regulations required from service
technicians also did not provide
information needed by the owner or
operator to make decisions on the fate
of the appliance. EPA proposed to align
the records that the technician must
provide to the owner or operator with
the ones that the owner or operator are
required to maintain.
Multiple commenters noted that
owners or operators must expend a
tremendous amount of effort to obtain
good records from outside service
providers. Often facility owners are
provided incorrect or incomplete
paperwork or are unable to obtain
paperwork at all. The commenters were
generally supportive of EPA’s proposal
that would make it a requirement for
technicians to provide the necessary
information to the owner or operator of
the appliance. However, one commenter
stated that the record for the proposed
rule does not justify the extent of
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records that technicians must provide to
owners/operators and suggested that
EPA maintain only the current
recordkeeping requirements for
technicians.
Multiple commenters requested that
EPA remove the proposed requirement
that technicians provide the owner or
operator with the full charge of the
appliance or the leak rate calculations
because technicians often do not have
sufficient information, such as the date
of last service, to make those
calculations. Other commenters
requested that the Agency require the
technician provide the owner or
operator with information about the
initial and follow-up leak repair
verification tests that matches what EPA
proposed to require the owner or
operator to maintain.
After considering the comments, EPA
is finalizing its proposal to align the
records that the technician must provide
to the owner or operator with the
records that the owner or operator are
required to maintain, with a few
exceptions described below. In response
to the comment that EPA maintain only
the current recordkeeping requirements
for technicians, the service technician is
generally in the better position to
generate those records as they are
performing the service activities and
usually are the expert that the appliance
owner or operator is relying on to make
informed decisions about their
appliances. Finalizing these
requirements for technicians should
help ensure that the appropriate records
are created so that they can be
maintained.
Specifically, EPA is requiring that
whenever an appliance with 50 or more
pounds of refrigerant is maintained,
serviced, repaired, or disposed of, the
technician must provide the owner or
operator with an invoice or other
documentation that indicates (1) the
identity and location of the appliance;
(2) the date and type of maintenance,
service, repair, or disposal performed,
including the location of repairs and the
results of any verification tests or leak
inspections (if applicable); (3) the name
and contact information of the person
performing the maintenance, service,
repair, or disposal; and (4) the amount
and type of refrigerant added to and/or
removed from the appliance (if
applicable).
Based on the comments, EPA is not
finalizing a requirement that the
technician calculate the leak rate or
provide the owner or operator with a
record indicating the full charge of the
appliance. The rules as finalized require
the technician to provide information
that they are best positioned to gather
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and that is relevant to calculating the
leak rate and full charge, but the owner
or operator is well positioned to
determine those numbers because they
should have the historical information
that informs that calculation.
Accordingly, it is not necessary for the
technician to calculate the leak rate and
EPA has modified the requirement at
§ 82.157(b) to explicitly state that it is
the owner or operator’s responsibility to
calculate the leak rate. Because the
owner and operator is also required to
calculate the full charge it is no longer
a relevant record for the technician to
provide.
The final rule also explicitly requires
that persons conducting the initial or
follow-up leak repair verification test
must, upon conclusion of that service,
provide the documentation needed to
meet the owner or operator’s
recordkeeping requirements. This
furthers the goal of aligning the
technician and owner or operator’s
recordkeeping requirements.
14. Reporting
The existing regulations require that
owners or operators report to EPA in
certain circumstances. EPA is not
making changes to those reporting
requirements in this final rule:
• If the owner or operator is
requesting an extension to the 30-day
(or 120-day) requirement to complete
repairs pursuant to § 82.157(f);
• If the owner or operator is
requesting an extension to complete a
retrofit or retirement of an appliance
pursuant to § 82.157(i); or
• If the owner or operator is
excluding purged refrigerants that are
destroyed from annual leak rate
calculations pursuant to § 82.157(k).
EPA is also finalizing two reporting
requirements that were not contained in
the proposed rule. First, EPA is
requiring at § 82.157(j) that owners or
operators submit a report if their
appliance leaks 125 percent or more of
the full charge in a calendar year and
thereby triggers the chronically leaking
appliances provision. EPA is adding this
report to provide added flexibility, so
that appliances that have leaked 125
percent of their full charge or greater do
not necessarily need to be retired or
retrofitted provided there is an
explanation for the leak. This report
must explain the reason for the leak rate
of 125 percent or greater and could
potentially include, among other things,
the documentation prepared to extend
the repair requirement or a description
of catastrophic events. As discussed
earlier in this notice, this reporting
requirement is based on comments
received to remove the two-year leak
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limit and allow for case-by-case
evaluations.
Second, this final rule contains a
provision allowing owners or operators
who are retrofitting or retiring an
appliance to request that EPA relieve
them of that obligation if they can
establish within 180 days of the plan’s
date that the appliance no longer
exceeds the applicable leak rate. This
provision is contained in the prior
regulations. EPA had proposed to
remove it, but based on comments
requesting that it be left in place, EPA
is not finalizing the proposal to remove
it. EPA is requiring information be
included in the report that is similar to
the previously existing requirement
except EPA is additionally requiring a
description of why the repair was not
conducted within the time frames
required under paragraphs (d) and (f) of
this section. In addition, it must include
a signed statement that all identified
leaks will be repaired and an estimate
of when those repairs will be completed
(not to exceed one year from date of the
plan). These additional elements are
necessary to ensure that this provision
is not used as a way to circumvent the
required time frames for repair.
EPA is not finalizing the proposed
requirement for the report that would
have accompanied an extension request
from federal agencies to conduct less
frequent leak inspections in the
proposed rule. EPA is not finalizing this
proposed extension and thus the
reporting element is no longer
necessary.
EPA is also finalizing the requirement
that all reports be submitted to EPA via
email at 608reports@epa.gov, as
proposed. If the submission contains
confidential business information,
reports can be mailed to the address in
§ 82.160. This should reduce costs and
streamline the reporting process for both
EPA and those reporting. It is also
consistent with EPA’s Next Generation
Compliance initiative. Commenters
generally supported the move towards
electronic reporting and recordkeeping.
Two commenters requested that the
Agency require that owners and
operators keep a record of the amount
of refrigerant leaked annually to the
atmosphere by refrigerant type and that
this information be reported to EPA.
Additionally, the commenters requested
that EPA make the data related to the
emissions of refrigerants publicly
available. In accordance with the
transparency element of the Next
Generation Compliance initiative, the
general public could then point out
violations and owners and operators
would have an incentive to correct
excessively leaking appliances.
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EPA responds that in general, EPA is
not requiring that owners or operators
calculate the sum total of refrigerant
leaked annually or submit those data to
EPA. The volume of reporting would be
substantial and for a majority of
appliances would be of limited value to
EPA or the general public. However,
owners or operators of equipment that
leaks 125 percent of the total charge in
a calendar year will have to calculate
their total refrigerant additions to
determine whether they have met that
threshold. EPA finds that there is merit
for those chronically leaking systems to
perform this calculation and report to
EPA because that will encourage those
owners or operators to take steps to
ensure they do not meet or exceed that
threshold.
G. Revisions to the Standards for
Recovery and/or Recycling Equipment
in § 82.158
1. Background
Under the prior regulations, all
refrigerant recovery and/or recycling
equipment manufactured or imported
on or after November 15, 1993, and used
during the maintenance, service, repair,
or disposal of appliances containing an
ODS refrigerant must be certified by an
approved equipment testing
organization to ensure that it meets
certain performance standards. These
standards may vary for certain
equipment intended for use with the
disposal of small appliances. These
performance standards were contained
in tables 2 and 3 of § 82.158, as well as
appendices B1, B2, and C of subpart F.
EPA based these standards in large part
on ARI (now AHRI) Standard 740–1993
and ARI Standard 740–1995. Recovery
and/or recycling equipment intended
for use during the maintenance, service,
repair, or disposal of MVAC and MVAClike appliances must meet the standards
in subpart B. The regulations pertaining
to MVACs refer to subpart B and state
that such recovery and/or recycling
equipment must meet the standards of
§ 82.36(a).
2. Extension to Substitute Refrigerants
In the revisions finalized in this rule,
EPA is requiring that all recovery and/
or recycling equipment manufactured or
imported for use during the
maintenance, service, repair, or disposal
of appliances (except small appliances,
MVACs, and MVAC-like appliances)
that contain non-exempt substitute
refrigerants be certified by an approved
equipment testing organization as being
capable of meeting certain performance
standards. EPA is requiring that after
January 1, 2017, all newly manufactured
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or imported recovery and/or recycling
equipment used during the disposal of
all appliances, including MVACs and
MVAC-like appliances, also be certified.
One commenter agreed that recovery
and/or recycling equipment for use with
non-exempt substitute refrigerants
should be certified. This comment
supports EPA’s approach.
EPA proposed that all existing
recovery and/or recycling equipment
that met certification requirements for
ODS prior to this rulemaking would be
considered as certified for non-exempt
substitute refrigerants. EPA is further
clarifying that if a person who recovers
refrigerant has recovery equipment that
was certified as meeting the
requirements for an ODS refrigerant, it
can be used to recover other nonflammable refrigerants in that pressure
category. For example, recovery
equipment manufactured in 2015 that
was certified to recover HCFC–22 can be
used to recover other non-ODS
refrigerants like R–407A, R–407C, or R–
410A. However, proper care should be
taken to prevent refrigerant mixing if
using the same recovery device with
multiple refrigerants.
One commenter noted that additional
equipment testing would be required if
the equipment manufacturers want
older equipment to handle newer nonexempt substitute refrigerants. EPA
responds that all equipment
manufactured or imported on or after
January 1, 2017, must be tested under
the new standards. This is true of older
equipment designs previously certified
for ODS which have not been tested for
substitute refrigerants. However, any
equipment manufactured or imported
prior to the effective date is
grandfathered and does not have to be
recertified. Technicians can continue to
use previously certified recovery
equipment that they already own. As
has been the case when EPA has
previously changed equipment
standards, EPA does not require
technicians to recertify or replace their
existing equipment.
EPA is adding appendices B3 and B4,
based on the AHRI Standard 740–2016,
Performance Rating of Refrigerant
Recovery Equipment and Recovery/
Recycling Equipment. The recovery
standard is the same in both
appendices; the difference between the
two, as discussed later in this notice, is
that appendix B4 contains additional
safety standards for flammable
refrigerants. EPA proposed to base
appendices B3 and B4 on AHRI
Standard 740–2015 but is using the
most recent version of that standard for
the final rule. All new equipment
manufactured or imported on or after
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January 1, 2017, must meet the
standards in appendices B3 or B4 and
table 2. The evacuation level would
depend upon the saturation pressure of
the refrigerant. EPA is also updating
appendix C ‘‘Method for Testing
Recovery Devices for Use with Small
Appliances’’ to reference all refrigerants,
instead of the previously referenced
CFC–12.
Certifying refrigerant recovery and/or
recycling equipment for use with nonexempt substitutes serves multiple
purposes. First, certification provides
reliable information on the ability of
equipment to minimize emissions of
these substitute refrigerants, by
measuring and/or establishing standards
for recovery efficiency (vacuum level)
and maximum emissions from air
purging, oil draining, equipment
clearing, and hose permeation. The fact
that the equipment minimizes emissions
is part of our consideration of whether
emissions associated with using
recovery equipment are considered de
minimis releases. Second, certification
provides reliable information on the
equipment’s ability to clear itself when
switching between refrigerants. Without
sufficient clearing capability, equipment
may retain residual refrigerant in its
condenser, which would then be mixed
with the next batch of refrigerant
recovered by the equipment. Because
mixed refrigerant can be difficult if not
impossible to reclaim (depending on
how cross-contaminated the mixed
refrigerant is) and expensive to destroy,
it is much more likely than unmixed
refrigerant to be vented to the
atmosphere. Third, certification
provides reliable information on the
equipment’s recovery speed. Without
such information, technicians may
purchase equipment that recovers too
slowly, tempting them to interrupt
recovery before it is complete. As
discussed in the 1993 Rule, where EPA
established the equipment certification
requirements, the information on
equipment performance provided by an
independent third-party testing
organization is more reliable than that
provided by other sources, such as
equipment manufacturers (58 FR
28686–28687).
Finally, certification embraces Next
Generation Compliance principles.
Users of certified equipment, when
following the manufacturer’s
instructions, will be in compliance with
the regulatory standards for the
evacuation of refrigerant.
Flammable Refrigerants. Different
treatment is warranted for non-exempt
flammable refrigerants. As proposed,
EPA is adding standards for the
recovery of flammable non-exempt
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refrigerants to appendix B4. Currently,
six flammable non-exempt substitute
refrigerants are approved for use in
stationary refrigeration and airconditioning equipment: HFC–32, HFC–
152a, R–406A, R–411A, R–411B, and
HFO–1234ze(E).
EPA is using AHRI Standard 740–
2016 as the basis for the recycling and/
or recovery equipment requirements in
appendix B3. This standard does not
address the safety of recovering
flammable refrigerants. EPA is therefore
creating appendix B4, which requires
the recovery/recycling performance of
appendix B3 and the safety performance
of Underwriters Laboratories (UL)
Standard 1963–2011, Supplement SB—
Requirements for Refrigerant Recovery/
Recycling Equipment Intended for Use
with a Flammable Refrigerant. All
recycling and/or recovery equipment
manufactured or imported after January
1, 2017, that are to be used with
flammable non-exempt substitute
refrigerants must meet this new
standard. EPA is incorporating UL 1963
by reference and modifying the testing
protocol in appendix B3 to account for
flammability concerns during testing.
Two testing organizations supported
using UL 1963 to address flammable
refrigerants. One commenter preferred
that EPA reference UL 1963 directly
within appendix B4 rather than
establishing separate requirements in
appendix B4 that are based on that
standard. Separate requirements
published outside of that standard
would make it more difficult to apply
the standard. EPA responds that
appendix B4 refers to UL 1963,
Supplement SB, and does not reproduce
the standard in the appendix due to
copyright concerns.
Another commenter strongly
recommended that a label be required
on all products certified to handle
flammable refrigerants. EPA responds
that UL 1963, Supplement SB has
requirements for markings that must be
placed on recovery and/or recycling
equipment certified to handle
flammable refrigerants. Because EPA is
incorporating those standards in
appendix B4 by reference, EPA is
requiring those markings.
3. Removing the Certification by Owners
of Recovery and/or Recycling
Equipment
As proposed, EPA is removing the
requirement under § 82.162 that anyone
who maintains, services, repairs, or
disposes of appliances containing an
ODS submit a signed statement to the
appropriate EPA Regional office stating
that they own recovery and/or recycling
equipment and are complying with the
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applicable requirements of subpart F.
EPA received one comment in support
of taking this action.
EPA created this provision in 1993
when the Agency first required that
recovery and/or recycling equipment be
certified and that technicians use
certified equipment. At the time, the use
and availability of recovery and/or
recycling equipment was not as
commonplace as it is today. Equipment
certification by owners demonstrated to
EPA that equipment was available for
use by certified technicians. In
particular, EPA was interested in the
capabilities of grandfathered, or pre1993, equipment. Since certified
recovery and/or recycling equipment is
now commonly available, EPA no
longer needs the information contained
in the certification statement such as the
number of service trucks and personally
identifiable information of equipment
owners.
4. Clarifications and Edits for
Readability
EPA is reorganizing § 82.158 by
appliance type. EPA is also combining
tables 2 and 3, which contain the levels
of evacuation that must be achieved by
recovery and/or recycling equipment, to
remove inconsistencies in terminology
and formatting.
EPA also revised how the
requirements for recovery equipment
used on small appliances are written. In
general, the requirement is that the
equipment is capable of recovering 90
percent of the refrigerant in the test
stand when the compressor of the test
stand is operational and 80 percent of
the refrigerant when the compressor of
the test stand is not operational. In
addition, there are secondary
considerations that could allow for the
certification of recovery equipment
based on when that equipment was
manufactured or imported.
H. Revisions to the Standards for
Equipment Testing Organizations in
§ 82.160
EPA relies on independent third party
organizations approved by the EPA
Administrator to certify that refrigerant
recovery and/or recycling equipment
meets the standards in subpart F. Any
equipment testing organization may
apply for approval so long as they can
verify that they have the expertise and
technical capability to verify the
performance of the recovery and/or
recycling equipment, have no conflict of
interest (e.g., with equipment
manufacturers), and receive no direct or
indirect financial benefit from the
outcome of certification testing.
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Any new certifying organization must
have expertise to certify equipment that
is used to recover or recycle refrigerants
that are subject to this subpart. This
means that they must be able to evaluate
and certify HFCs and other non-exempt
substitute refrigerants, including
flammable refrigerants. Because the
same expertise is needed to test
equipment used for ODS and substitute
refrigerants, equipment certifying
organizations that have already been
approved by EPA may continue to
certify equipment designed for
substitute refrigerants without needing
to re-apply. In comments on the
proposed rule, two certifying
organizations agreed that currently
approved organizations should not have
to reapply to certify equipment used to
recycle and/or recover substitute
refrigerants and that the same expertise
is needed to test equipment used for
ODS and substitutes.
EPA is removing the requirement that
organizations provide a list of all
certified equipment to EPA within 30
days of the organization’s approval by
EPA and annually at the end of each
calendar year thereafter. Instead, EPA is
requiring that the certified equipment
testing organizations publish online a
list of equipment that meets EPA
requirements. This list must include the
manufacturer and the name and/or
serial number of a newly certified model
line, which is the information that the
certifying organizations had to provide
to EPA. This list must be updated no
less than once per year, but an
organization can choose to update the
list more frequently. Online lists must
contain certified equipment until three
years after that equipment is no longer
offered for sale. Making the information
available online will be no more
burdensome for the testing organization
than submitting the list to EPA. Online
publication is also a better method of
communicating these findings to the
public and the service/repair industry
than sending the information to EPA.
Two certifying organizations
commented that they support these
revisions because they already make the
information publicly available through
their Web sites.
EPA is also adding to the regulatory
text the timing for records retention that
had previously only been found in
guidance documents. The regulation
now specifies that all records must be
maintained for three years after the
equipment is no longer offered for sale.
EPA is adopting a similar timeframe for
the online lists of certified equipment.
EPA also encourages the use of
electronic reporting and has established
the email address 608reports@epa.gov to
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receive applications from organizations
seeking to be approved under this
section and the required notification if
a previously certified model line fails to
meet the standards upon retesting.
I. Revisions to the Technician
Certification Requirements in § 82.161
1. Background
The prior regulations at § 82.161
required the certification of all
individuals who maintain, service, or
repair air-conditioning and refrigeration
equipment containing an ODS, other
than MVACs which are addressed in a
separate subpart of the regulations. This
group includes installers, contractor
employees, in-house service personnel,
and anyone else who performs
installation, service, maintenance, or
repair that might reasonably have the
opportunity to release ODS refrigerants
to the environment. In addition,
individuals disposing of airconditioning and refrigeration
equipment other than small appliances,
MVACs, and MVAC-like appliances
must be certified. Individuals disposing
of small appliances, MVACs, and
MVAC-like appliances do not need to be
certified.
Under those rules, technicians
become certified by passing a test
containing questions drawn from a bank
developed by EPA with input from
industry educational organizations with
a certification program approved by
EPA. The test includes questions on the
role of CFCs and HCFCs in stratospheric
ozone depletion, the requirements of the
subpart F, and proper techniques for
recycling and conserving refrigerant.
EPA makes the question bank available
to certifying organizations that
demonstrate that they can properly
generate, track, administer, and grade
tests; issue certificates; and keep
records.
2. Extension to Substitute Refrigerants
In this final rule, EPA is finalizing its
proposal to extend the certification
requirements to technicians who work
with non-exempt substitute refrigerants.
Persons who are not certified
technicians are more likely to
intentionally or inadvertently release
refrigerant in the course of servicing,
maintaining, repairing, or disposing of
refrigeration and air conditioning
equipment. One commenter stated that
they believe most of the intentional
venting of refrigerant is done by
individuals who are not certified
technicians. Another commenter noted
that they have observed a lack of
competence within the equipment
servicing sectors leading in many
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instances to the improper handling of
refrigerants or servicing of mechanical
equipment.
EPA responds that these comments
support the importance of extending the
technician certification requirement, as
well as other provisions of the
refrigerant management rules, to nonexempt substitute refrigerants. Certified
technicians are more likely to
understand how and why to recover and
recycle refrigerants and to have the
proper equipment to do so. Technician
certification helps ensure that
technicians know refrigerant recovery
requirements and techniques. The prior
regulations did not specifically prohibit
an uncertified individual from opening
an air conditioner that contains a
substitute refrigerant in order to add a
substitute refrigerant or replace
components. Similarly, the regulations
did not specifically prohibit an
uncertified individual from opening an
air conditioner that contains an ODS
refrigerant to add ODS refrigerant
(assuming a certified technician
purchased the ODS refrigerant). While
the venting prohibition generally
applies to these actions, without
training or certification the individual
performing such servicing activities may
not even be aware of the prohibition
against knowingly venting or otherwise
releasing refrigerant.
Tips reported to the Agency indicate
that servicing by uncertified individuals
occurs. One commenter asserted that a
substantial number of technicians,
possibly up to 25 percent, are operating
without certification. EPA responds that
this information, if true, would further
support the extension of the technician
certification requirement to non-exempt
substitute refrigerants. Requiring that
anyone opening an appliance (except
those containing only exempt substitute
refrigerants) be a certified technician
will reduce emissions caused by
uninformed service personnel and will
facilitate enforcement of the venting
prohibition, especially when coupled
with the recordkeeping requirement for
appliances containing more than five
and less than 50 pounds of refrigerant.
Many companies require certification
of their technicians regardless of the
type of refrigerant being used. The
principles of proper handling, recovery,
and disposal of non-exempt substitute
refrigerants are similar if not identical to
those for ODS refrigerants, except that
additional safeguards are advisable for
flammable refrigerants. The fact that
some individuals may be working on
non-ODS appliances without
certification and without following safe
handling practices places them at a
disadvantage with respect to
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compliance. Because there is a
reasonable expectation that an ODS or
non-exempt substitute refrigerant could
be released into the environment in the
course of that work if appropriate
precautions and practices are not
followed, requiring technician
certification for individuals performing
such work ensures that they have the
information necessary to comply with
the regulatory requirements and with
the venting prohibition, as well as to
minimize emissions. Accordingly, to
promote proper practices or at least
remove barriers for compliance and for
environmental protection, EPA is
requiring certification for anyone
working on an appliance that contains
a non-exempt refrigerant.
Many commenters supported
extending the technician certification
requirement for the handling of
substitute refrigerants. While some
commenters stated that EPA does not
have authority to extend section 608
regulations to substitutes, those
commenters did not raise the specific
issue of technician certification. EPA
addresses those general comments about
its authority for this action in Section III
of this notice. Two commenters
recommended extending the technician
certification requirement to flammable
refrigerants. Three commenters urged
EPA to extend the technician
certification requirement for the
handling of all refrigerants, even if they
are exempt from the venting
prohibition. These commenters stated
that treating all refrigerants equally will
provide consistency and clarity in the
industry. Other commenters stated that
many of the exempt refrigerants have
special considerations such as
flammability or toxicity that require care
during handling and servicing. As noted
previously, some commenters stated
that the sales restriction should be
extended to hydrocarbons. These
commenters noted that the flammability
of these refrigerants poses far greater
risks than that of R–22 when handling
it and servicing equipment. One
commenter recommended that if the
sales restriction was extended to
flammable refrigerants then it should be
extended to all exempt refrigerants.
As stated in the proposed rule, EPA
is not extending the technician
certification requirement (and thus the
sales restriction) to individuals
maintaining, servicing, repairing, or
disposing of appliances containing
substitute refrigerants that are exempt
from the venting prohibition. EPA has
exempted substitutes, at least in the
specified end-uses, from the venting
prohibition because the Agency has
determined for purposes of section
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608(c) that they do not pose a threat to
the environment when released. For
water or nitrogen, technician
certification would provide no
environmental benefit nor would it
increase technician safety. For ammonia
or chlorine, other regulations address
the risks related to those specific
compounds (for example, OSHA
regulations that address risk to
technician safety). The types of
refrigeration equipment that use these
exempt substitute refrigerants are also
significantly different from an
engineering standpoint from the
equipment that uses ODS or HFC
refrigerants. Therefore, there is little
potential for ODS and these exempt
substitute refrigerants to be mixed and
intentionally released to the
environment.
Hydrocarbon refrigerants may be
different than the other substitute
refrigerants. EPA notes that all end-uses
for hydrocarbons currently authorized
under SNAP are also exempted under
the venting prohibition. The Agency did
not propose and is not establishing a
technician certification requirement or
sales restriction for those exempt
substitute refrigerants. The Agency may
consider in future whether there are any
regulatory or other measures that would
be appropriate to address the handling
of exempt flammable refrigerants.
As a result of today’s action,
flammable substitutes that have not
been exempted from the venting
prohibition in a particular end-use are
subject to the requirements of subpart F,
including the sales restriction and the
technician certification requirements.
Unlike the other exempt substitutes,
hydrocarbons are being sold to service
existing ODS and HFC equipment for
which this refrigerant is not listed as
acceptable under SNAP. Specifically, R–
22a, which is propane, in some cases
mixed with isobutane and an odorant,
has been marketed as a ‘‘drop-in’’ (or
more appropriately termed a ‘‘retrofit’’)
replacement for existing equipment
designed for use with HCFCs and/or
HFCs. Often these are MVACs or
residential split systems.
R–22a has not been submitted to
SNAP for review for these uses, and
EPA has not listed propane as
acceptable for these end-uses under the
SNAP program. Accordingly, EPA
considers its introduction into interstate
commerce for this use a violation of the
SNAP regulations. In addition, EPA has
not exempted R–22a or propane used as
a retrofit in existing HCFC–22
appliances from the venting prohibition.
As a result, R–22a and propane are
subject to the requirements of subpart F
in such non-exempt end-uses, including
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the sales restriction and the technician
certification requirements.
The Agency has learned through its
recent enforcement actions against
Enviro-Safe and Northcutt, two
distributors of R–22a, and through other
investigations that R–22a is being sold
to both consumers and technicians.
Often the buyers are not aware there is
a difference between R–22 and R–22a,
or even that R–22a is flammable. As a
result, appliances have exploded and
technicians have been injured.
Technicians need to be aware of the
safety concerns of using such refrigerant
for themselves or subsequent
technicians who service ODS or HFC
equipment that inappropriately contains
hydrocarbons. Consumers must also not
have easy access to this refrigerant for
their own safety. Applying the sales
restriction to unapproved uses of
hydrocarbon refrigerants and educating
technicians through the certification
program will reduce safety risks and
prevent the mixing (and subsequent
venting) of ODS and HFC refrigerants
with these unapproved alternatives.
One commenter, while supportive of
extending the technician certification
requirements to those working with
non-exempt substitute refrigerants,
disagreed with the premise that failing
to require certification will result in the
release and mixture of ODS and nonODS refrigerants.
EPA responds that information about
the illegal use of R–22a as a replacement
for R–22 indicates to EPA that people
are purchasing their own refrigerant and
mixing it with HCFCs. The
consequences of inappropriately mixing
refrigerants include significant losses in
performance and energy efficiency,
damage to equipment, the lost value of
the mixed refrigerant (which is at best
difficult, and often impossible, to
separate into the component
refrigerants), and costs for destroying
mixed refrigerants. Refrigerant mixture
also leads both directly and indirectly to
refrigerant release. Mixture leads
directly to release because mixtures of
certain refrigerants, such as R–22 and
R–134a, have higher pressures than
either component alone. Thus, pressuresensitive components such as air purge
devices on recycling machines and
relief devices on appliances may be
activated by these mixtures, venting the
refrigerant to the atmosphere. Purge
devices in particular are often set to
open when the pressure of the recovery
cylinder’s contents rises more than 5–10
psi above the expected saturation
pressure for the refrigerant; this margin
is exceeded by R–22/R–134a mixtures
containing more than ten percent of the
contaminating refrigerant.
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Refrigerant mixture also reduces
recycling and leads indirectly to release.
First, mixed refrigerants lose their value
for reclamation because it is difficult to
separate the component refrigerants.
Typically, reclaimers will pay
refrigerant distributors for recovered
refrigerant. Reclaimers may actually
charge money to accept highly mixed
refrigerant or not take it at all. Mixed
refrigerants cost money to reclaim or
destroy and this cost could provide a
financial incentive for illegal venting.
Second, the direct releases and
equipment breakdowns caused by
contamination lead to increased
equipment servicing, which itself leads
to unavoidable releases of refrigerant.
Thus, failure to require certification for
people working with substitute
refrigerants would increase the
probability of both substitute and ozonedepleting refrigerants being emitted to
the atmosphere.
As noted previously in this notice,
certified technicians are more likely to
understand how and why to recover and
recycle refrigerants and to have the
proper equipment to do so. The skills
and knowledge that certified
technicians have reduces the likelihood
that they would mix or release ODS and
non-ODS refrigerants. For these reasons,
EPA is requiring technician certification
for persons working with non-exempt
substitutes.
3. Updated Test Bank
EPA is currently updating the
technician certification test bank
through a process separate from this
rulemaking. While this is not a
regulatory change—the Agency can
update the test bank when appropriate
without promulgating a new
regulation—it aligns with EPA’s efforts
to extend the refrigerant management
regulations to substitute refrigerants.
Currently, the questions focus on CFCs
and HCFCs, even though CFCs have
been phased out for nearly twenty years
and the predominant HCFC, HCFC–22,
will be phased out by 2020.
As part of the public participation
process for this rule, stakeholders
provided input regarding updating the
test bank questions. Many commenters
supported updating the test bank,
especially given the new refrigerants
and technologies that have become
available since the test was initially
developed. Commenters provided
suggestions for numerous topics that
should be covered by the exam. These
include placing greater focus on the
venting prohibition, recovery best
practices, safe handling of flammable
refrigerants, use of new refrigerants,
financial benefits of refrigerant
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recycling, and the costs of noncompliance related to equipment
efficiency, equipment life, and
environmental harm. One commenter
observed that the core, Type II, and
Type III tests should now include
questions on verification testing since
this will be a new requirement of
technicians servicing comfort cooling
and commercial refrigeration appliances
under the leak repair provisions.
EPA responds that all of these
suggested topics fit into the testing
topics listed in appendix D. EPA
intends to consider these potential
topics when updating the test bank
questions. EPA has begun reviewing the
test bank and consulting with
certification and training organizations
to identify questions that should be
updated, replaced, or removed. EPA
also intends to incorporate new and
revised elements of the National
Recycling and Emission Reduction
Program that are being finalized in this
action in the updated test bank. As
such, the test bank will not be
completed until after publication of the
final rule. Testing organizations have
requested time to update their training
and testing materials before the new
questions go into effect. EPA anticipates
the new questions will be added to all
exams by mid- to late 2017.
J. Revisions to the Technician
Certification Program Requirements in
§ 82.161
1. Background
The regulations at § 82.161 require
that organizations operating technician
certification programs apply to EPA to
have their programs approved. The
application process ensures that
technician certification programs meet
minimum standards for generating,
tracking, and grading tests, as well as
keeping records. Approved technician
certification programs must keep
records of the names of technicians they
have certified and the unique numbers
assigned to each technician certified
through their programs. These records
allow both the Agency and the
certification program to verify
certification claims and to monitor the
certification process. Approved
technician certification programs also
must submit reports to EPA every six
months containing information on the
number of students certified and the
pass/fail rate. Such reports allow the
Agency to monitor program compliance.
2. Extension to Substitute Refrigerants
As discussed previously, EPA is
requiring in this final rule that
technicians who work with non-exempt
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substitute refrigerants be certified. By
extension, EPA is also requiring that
technician certification programs offer
tests to certify those technicians. This
should not require significant changes
to current practices other than using the
updated test bank once available and
the revisions discussed in this section.
EPA is not requiring that current
certification programs recertify based on
any of the revisions in this final rule.
EPA did not receive comment
specifically on these proposed revisions.
3. Posting Lists of Certified Technicians
In regulatory revisions finalized in
this rule, EPA is requiring that certifying
organizations publish online lists of the
technicians certified by that
organization. However, EPA is not
establishing a single ‘‘database’’ nor
requiring certified organizations to
create their own databases as was
contemplated in the proposed rule. The
primary intent of these published lists is
to assist technicians who have lost their
certification cards and reduce the
burden currently facing the Agency and
technician certification programs in
assisting technicians who have lost their
certification cards as described in the
proposed rule. These goals can be
accomplished for all future technicians
through the publication of limited
information online. Technicians should
be able to find out who certified them
through a simple web search.
In the proposed rule, EPA described
this as a database and discussed one of
its possible uses as a tool refrigerant
wholesalers could use to verify their
customer is a certified technician. Many
commenters supported the creation of a
single technician database maintained
by EPA. A few of those commenters
encouraged EPA to include all certified
technicians, not just newly certified
technicians, because an incomplete list
would have only marginal value for
anyone referencing the list prior to
selling refrigerant. Some refrigerant
distributors wanted assurance that their
refrigerant sales would not be adversely
affected or that they would not be held
responsible for errors or omissions in
the technician database. One commenter
who employs in-house technicians
stated that their technicians would
prefer not to be included in such a
database. The commenter requested that
there not be a database, or if there is one
that technicians should have to
affirmatively opt in, rather than being
given the option of opting out.
EPA responds that the Agency did
consider the possibility of a database
that could be used to enforce the sales
restriction. EPA agrees that in order to
be used for regulatory purposes the
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content of the database would need to
be complete and continuously updated.
The only manner the Agency could
ensure a complete list of technicians
would be to require technicians to
recertify, which EPA did not propose.
EPA did not propose to require that
certification programs list everyone
currently in their records. While this
may assist current technicians who have
lost their cards, listing the hundreds of
thousands of technicians certified over
the last twenty-two years could be
overly burdensome. This would also not
provide technicians with the
opportunity to opt out.
As this requirement is primarily for
the benefit of the technician, EPA is
requiring technician certification
programs to notify individuals taking
the certification exam that information
will be posted online and allow them to
opt out. Allowing the opt out is
sufficient for those technicians who do
not want to be listed; requiring an opt
in to be listed, on the other hand, would
reduce the utility of the lists. EPA is
also exempting federal government-run
programs from this requirement as
proposed. The public release of
government and military personnel
names linking them to their federal
employment could present significant
privacy and security concerns.
EPA did not receive comment on the
proposed information that would need
to be published. EPA is therefore
finalizing as proposed the following
information requirements: The first
name, middle initial, and last name of
the certified technician, the technician’s
city of residence when taking the test,
the type(s) of certification received, and
the date each certification was received.
EPA is not requiring any specific format
for providing this information. EPA is
aware that some certifying organizations
already provide this information online
to their technicians and the Agency
does not intend to require that they
change how they offer the information
so long as the required data elements are
included. Rather than continuous
updating, as would have been required
of a database, EPA is requiring that the
lists be updated annually, although
individual organizations may choose to
update their lists more frequently.
4. Grandfathering Provisions
In this rulemaking, EPA is finalizing
its proposal to remove provisions
related to voluntary certification
programs at § 82.161(g). This program
was created to allow technicians who
were trained prior to the establishment
of approved technician certification
programs to be recognized as certified
technicians. This program expired in
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1994 and is no longer necessary. EPA
did not receive any comments on this
proposal.
5. Certification Cards
As proposed, EPA is finalizing
revisions to the requirements for the
required text that is printed on
certification cards. Some organizations
told EPA prior to publication of the
proposed rule that the language used on
the certification card implies that a
technician as defined in subpart F may
be trained in other aspects of equipment
installation. The primary purpose of the
608 certification card is for a technician
to prove to a vendor that they
understand the environmental impacts
of mishandling refrigerants and are
legally permitted to perform the
necessary maintenance, servicing,
repair, or disposal work under CAA
section 608. While this certification
qualifies an individual to maintain,
service, repair, or dispose of appliances
containing certain refrigerants for
purposes of CAA section 608, the 608
exam is less focused on the operational
and engineering aspects of refrigeration
and air-conditioning equipment.
Accordingly, the 608 certification is not
intended to serve as a general license for
individuals who work on such
equipment.
To more accurately reflect the
knowledge needed to obtain the
certification, EPA is updating the card
to read: ‘‘[Name of person] has
successfully passed a [Type I, Type II,
Type III, and/or Universal, as
appropriate] exam on how to
responsibly handle refrigerants as
required by EPA’s National Recycling
and Emission Reduction Program.’’
EPA stated in the 1993 Rule
establishing the technician certification
requirements that standardized language
will decrease administrative costs and
aid in enforcement. In addition, it was
intended to ease burden on refrigerant
wholesalers who must inspect the cards
to verify the certification of technicians.
Those principles also apply to this
rulemaking, and updating the
information required on the certification
card should improve clarity and should
not result in any new administrative
costs. EPA notes that the Agency is not
requiring that currently certified
technicians obtain new cards with the
updated language. The new language
applies only to cards issued to newly
certified technicians. In the event where
a technician is requesting a replacement
for a lost card, EPA encourages that the
certifying organization use the updated
language whenever feasible.
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6. Updates to Appendix D
In this rulemaking, EPA is also
finalizing minor edits to appendix D
‘‘Standards for Becoming a Certifying
Program for Technicians.’’ EPA did not
receive any comments on this element
of the proposal and is finalizing the
revisions as proposed. More
specifically, EPA is updating the
description of test content to include the
environmental impact of not just ODS
but also substitute refrigerants. EPA is
removing paragraphs (i) through (k) on
approval process, grandfathering, and
sample application as they are outdated,
redundant, or self-explanatory. EPA is
removing the reference that EPA will
periodically publish information on the
fees charged by the programs as the
Agency no longer collects this
information. To protect the private
information of technicians and
minimize the potential for fraud, EPA is
removing social security numbers as an
acceptable form of identification for
Type I technicians using the mail-in
format and stating that social security
numbers cannot be used in the unique
certification number assigned to newly
certified technicians. EPA also is
requiring that certifying organizations
provide a hand-out or electronic
communication to technicians after they
have taken the certification test
explaining who provided the training,
who to contact with questions regarding
the certification process, and when they
should expect to receive their score, and
if they passed, their certification cards.
K. Revisions to the Reclamation
Requirements in § 82.164
1. Background
The regulations at § 82.164 required
that anyone reclaiming used ODS
refrigerant for sale to a new owner,
except for people properly certified
under subpart F prior to May 11, 2004,
is required to reprocess refrigerant to
standards laid out in appendix A (based
on ARI Standard 700–1995,
Specification for Fluorocarbons and
Other Refrigerants), release no more
than 1.5 percent of the refrigerant
during the reclamation process, dispose
of wastes from the reclamation process
in accordance with all applicable laws
and regulations, and adhere to specific
recordkeeping and reporting
requirements.
2. Extension to Additional Substitute
Refrigerants
In this final rule, EPA is extending the
reclamation standards for refrigerants in
appendix A to additional non-ozone
depleting substitute refrigerants. Most of
the refrigerants in appendix A were
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single component ODS refrigerants or
blends containing an ODS component.
However, appendix A had previously
contained a few commonly used
substitute refrigerants that have been
used for a long time, such as R–407C
and R–410A. EPA is updating appendix
A to include newer HFCs, PFCs, HFOs,
and other refrigerants based on the
standards contained in the latest AHRI
Standard 700, Specifications for
Refrigerants. EPA proposed to base
appendix A on AHRI Standard 740–
2015, with the exception that the
Agency would maintain the current
unsaturates limit of 0.5 percent by
weight. Recently AHRI released
Standard 740–2016 which includes
additional refrigerants and an impurity
standard for R–40. EPA is finalizing
appendix A based on the recent AHRI
Standard 740–2016 by adding the new
refrigerants, but not the unsaturates
limit or R–40 impurity standard.
The standard in the previously
existing rules was adopted in 1995. It is
appropriate to update this standard to
ensure that refrigerants developed in the
last twenty years are reclaimed
properly. While industry has
established standards for these new
refrigerants, EPA’s regulations have not
kept pace. Therefore, reclaimers have
not had a legal obligation to achieve
such standards. Instilling confidence in
the market that reclaimed refrigerant is
as good as virgin refrigerant is crucial to
its widespread use. Ensuring a healthy
market for reclaimed refrigerant is also
crucial to support the value of used
refrigerant and provide incentives
through market forces to recover used
gas from appliances during their
maintenance, servicing, repair, or
disposal.
Many refrigerant reclaimers and
distributors commented that the current
0.5 percent unsaturates limit is
appropriate. One commenter specifies
that the reclamation industry as a whole
has delivered more than 200 million
pounds of reclaimed refrigerant at that
unsaturates level without any known
issues. Another commenter expressed
concern that lowering the unsaturates
limit will make successful reclamation
impossible. Other commenters
encouraged EPA to incorporate the
AHRI Standard 700–2015,
Specifications for Refrigerants, by
reference and establish a process to
automatically adopt the latest version of
the AHRI–700 standard. These
commenters explained that typically,
the standard is updated to establish
purity specifications for each new
substitute refrigerant as it is developed
and approved. The commenters state
that this will prevent reclaimers from
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having to comply with regulations
requiring that they reclaim new
refrigerants without any EPA required
standard for those refrigerants.
EPA responds that it is not
incorporating either the AHRI Standard
700–2015, Specifications for
Refrigerants, or the current AHRI
Standard 700–2016, Specifications for
Refrigerants by reference. This is
because ASHRAE and AHRI are still
conducting further studies on whether
and how to amend the unsaturates limit.
It is important to maintain the 0.5
percent unsaturates limit while the
standard is still being debated.
Accordingly, rather than incorporating
the AHRI Standard 700–2016 by
reference, EPA is updating appendix A
to include HFCs, PFCs, HFOs, and other
refrigerants based on the standards
contained in AHRI Standard 700–2016.
In response to the comment about
establishing a process to automatically
update the standards, it is important to
understand that EPA cannot
automatically incorporate future
standards by reference. EPA appreciates
the commenters’ concerns that the
Agency has not updated the standard in
twenty-one years. However, any
updated standard must undergo notice
and comment review prior to being
adopted into the regulations.
This final rule will extend the prior
reporting requirements that are
applicable to ODS to HFCs and other
non-exempt substitutes. Reclaimers
must report annually the aggregate
quantity of material sent to them for
reclamation (the combined mass of
refrigerant and contaminants) by
refrigerant type, the mass of each
refrigerant reclaimed by type, and the
mass of waste products. EPA has been
publishing the aggregate total of each
ODS refrigerant reclaimed each year on
its Web site. After these revised
reporting requirements take effect, EPA
will begin collecting and making
available reclamation data for nonexempt substitute refrigerants as well as
ODS, which should provide EPA and
the general public a greater
understanding of the extent of HFC
recovery and reclamation. One
commenter encouraged EPA to publish
data on the amount of refrigerant being
sent to a reclaimer in addition to the
amount reclaimed. The commenter does
not believe that aggregated data is CBI
and believes that sharing the data
publicly will provide further
justification for the actions taken in this
rule. EPA responds that the Agency has
aggregated and released the reported
quantity of refrigerant received for
reclamation, as well as the aggregate
quantity of refrigerant reclaimed since
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2010. This includes an aggregate of all
of the different types of refrigerant
reported to EPA as received and/or
reclaimed. Because reporting on
substitutes was previously not a
requirement, the data on HFCs are
incomplete and based only on reports
from companies that chose to provide
such data.
3. Revisions to Recordkeeping and
Reporting
Under the prior regulations at
§ 82.164(b), reclaimers must certify that
the refrigerant reclaimed meets the
specifications in AHRI Standard 700–
1995 using the analytical methodology
prescribed in appendix A. In addition to
updating the standard to AHRI Standard
700–2016, EPA is finalizing revisions to
the regulations to clarify that the
analysis must be conducted on each
batch of refrigerant being reclaimed and
that reclaimers must maintain records of
each analysis. Requiring reclaimers to
maintain records helps to ensure that
refrigerant is being reclaimed to the
appropriate specifications. The standard
practice for reclaimers currently is to
analyze by batch, and to generate
records when doing so, so these
revisions update the regulations to
reflect current practices and do not add
additional burden. EPA is also requiring
that all recordkeeping and reporting
requirements for reclaimers be
maintained and reported by refrigerant
type (i.e., ASHRAE number).
Information kept in this format will
provide more clarity on the types and
quantities of refrigerants being
reclaimed when aggregated information
is reported.
EPA is also clarifying what aggregate
information must be reported annually
to the Agency, and removing a
redundant recordkeeping provision
related to that report. Currently,
reclaimers provide data on ODS
reclamation to EPA in multiple formats.
EPA intends to develop an electronic
form to standardize the reporting across
all reclaimers. This should reduce
burden on the Agency and on reclaimers
as EPA must currently engage in a back
and forth process to ensure that all
required data have been reported
properly. This will also allow the
Agency to publish reclamation data in a
more timely manner.
Previously reclaimers were required
to certify that the refrigerant reclaimed
meets the specifications in AHRI
Standard 700–1995 using the analytical
methodology prescribed in appendix A.
EPA proposed to specify that reclaimers
must, ‘‘[v]erify that each batch of
refrigerant reclaimed meets these
specifications using the analytical
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methodology prescribed in appendix
A,’’ but did not propose a definition of
the term batch. Multiple reclaimers
supported testing each batch of
refrigerant but suggested that EPA
define the term batch. These
commenters proposed identical or
similar definitional language requesting
that EPA define a batch of refrigerant as
a single bulk cylinder containing the
reclaimed refrigerant after all processing
has been completed but prior to
packaging or shipping to the market.
EPA agrees that specifying what a batch
is will assist reclaimers in complying
with this requirement and is therefore
adding batch to the defined terms in
§ 82.152. This added definition is
materially similar to what commenters
suggested.
One commenter suggested that a
testing ID or batch number be placed on
each cylinder packaged from the bulk
cylinder to allow for traceability back to
the analysis. EPA recognizes that some
companies may want to do this for their
own internal quality control. However,
EPA is not presently convinced of the
environmental benefit of making this
change at this time.
Multiple reclaimers requested that the
reclaimed refrigerant be independently
analyzed by an accredited laboratory.
They stated that independently
verifying that reclaimed refrigerant
meets the required specifications
reaffirms the appropriate industry
standard already being followed by most
reclaimers. One commenter found that it
would not be necessary to require
independent analysis since all reputable
reclaimers already do this. EPA
responds that it did not propose to
require independent third-party testing
of reclaimed refrigerant and does not
presently have sufficient information to
finalize such a requirement. Before
requiring third-party testing, EPA would
want to better understand the frequency
with which such testing is done, the
costs involved, whether such testing
would improve the quality of the
reclaimed refrigerant on the market, and
which and how many companies
conduct such testing. Therefore, at this
time EPA is not requiring independent
third-party testing. However, as
discussed previously in this notice,
ensuring the quality of reclaimed
refrigerant is very important to its use
and to further the goals of the section
608 program and EPA may consider
establishing such requirements in a
future rulemaking.
EPA requested comment on possible
future proposed revisions to the
reclamation requirements including
establishing more stringent certification
requirements for reclaimers;
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establishing a third-party certification or
audit program for reclaimers; and
requiring labeling of reclaimed
refrigerant. Many reclaimers and other
commenters provided input on these
questions. Because EPA was merely
seeking comment for potential future
actions and did not propose any specific
action for this rulemaking, EPA is not
responding to those comments at this
time and is not taking final action with
respect to any of those comments. EPA
will consider the information received
for a potential future rulemaking.
4. Hazardous Wastes
EPA received comments related to
hazardous waste in the context of the
safe disposal requirements, recovery
equipment, and reclamation. Multiple
commenters requested that EPA create
new Resource Conservation and
Recovery Act (RCRA) exclusions from
the definition of hazardous waste for all
recovered refrigerants, perhaps with the
exception of ammonia. The commenters
stated that classifying used refrigerant as
a hazardous waste would prevent
technicians from recovering and
transporting used refrigerant and
prevent reclaimers from accepting,
processing, or reclaiming such
refrigerant. As a result, commenters
foresee less recovery and increased
emissions because handling compounds
classified as hazardous waste would be
cost prohibitive. The commenters point
to the exclusion EPA created for used
CFCs at 40 CFR 261.4(b)(12) as a model.
EPA responds that to be a hazardous
waste, a compound must either be
specifically listed as a hazardous waste
per 40 CFR 261 Subpart D or exhibit one
of the following characteristics:
Ignitability, reactivity, toxicity, or
corrosivity per 40 CFR 261 Subpart C.
In 1990, EPA revised the toxicity
characteristic and as a result, became
aware that certain CFCs may exhibit the
toxicity characteristic. On February 13,
1991, the Agency issued an exclusion
from the RCRA hazardous waste
regulations for CFCs used as
refrigerants, provided the refrigerant is
reclaimed for further use. Most nonexempt substitute refrigerants are not
listed nor do they exhibit any
characteristics of a hazardous waste and
therefore, are not considered hazardous
wastes when they are recovered and
reclaimed. However, some refrigerants
are flammable (e.g., HFC–32), which are
likely to exhibit the hazardous waste
characteristic of ignitability.
5. Clarifications and Edits for
Readability
EPA is also finalizing revisions in this
rule that consolidate provisions related
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to refrigerant reclaimers into a single
section at § 82.164. This rule also
clarifies what is required of the
reclaimer. The prior regulations
required a reclaimer to certify that he or
she will meet a certain set of standards
and engage in certain behaviors. The
revised regulations require first, that a
reclaimer meet those standards and
behaviors and second, that they certify
to having done so. EPA is making this
revision to improve the clarity and
enforceability of these provisions. EPA
did not receive any comments on this
proposal.
L. Revisions to the Recordkeeping and
Reporting Requirements in § 82.166
1. Background
The prior regulations included all
recordkeeping and reporting provisions
in one section of subpart F (§ 82.166).
While having all the provisions in one
place can be useful, they are separated
from the required practices specific to
that regulated entity. This can create
difficulty for the regulated community
in finding what records they must keep
and what reports they must make to
remain in compliance with the section
608 requirements. To improve the
readability of the recordkeeping and
reporting provisions, EPA is moving the
requirements that were in § 82.166 to
the relevant section describing the
required practices. The recordkeeping
and reporting provisions that remain in
§ 82.166 relate to the leak repair
provisions in § 82.156(i) that are
effective until January 1, 2019.
EPA summarizes some of the key
amended recordkeeping and reporting
provisions for this rulemaking below
and intends to prepare a guidance
document for this rule that includes all
of the recordkeeping and reporting
requirements. Additional discussion of
these provisions may be found in the
section of this notice discussing the
corresponding required practice. This
summary is not exhaustive, so to
determine all of recordkeeping
requirements that apply to a particular
requirement, you must consult the
appropriate text in the revised
regulations.
2. Summary of Recordkeeping
Provisions
A summary of some key, revised
recordkeeping requirements for subpart
F is included here. Unless otherwise
noted, all records must be maintained
for at least three years.
• Disposal of Small Appliances,
MVACs, and MVAC-like Appliances:
Persons who take the final step in the
disposal process of such appliances
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must keep a copy of all the signed
statements indicating refrigerant was
recovered properly. This statement must
include the name and address of the
person who recovered the refrigerant
and the date the refrigerant was
recovered. Alternatively, the statement
may be a signed contract stating either
that the supplier will recover any
remaining refrigerant from the appliance
in accordance with § 82.155 prior to
delivery or will verify that the
refrigerant has been properly recovered
before receipt by the supplier.
• Disposal of Appliances Containing
More than 5 and Less than 50 Pounds
of Refrigerant: Persons evacuating
refrigerant from appliances with a full
charge of more than 5 and less than 50
pounds of refrigerant for purposes of
disposal of that appliance must
maintain records documenting their
company name, location of the
appliance, date of recovery, and type of
refrigerant recovered for each appliance.
They must also keep records of the
quantity of refrigerant, by type,
recovered from such appliances in each
calendar month and the quantity and
type of refrigerant transferred for
reclamation, the person to whom it was
transferred, and the date of transfer.
• Leak Inspection: Owners or
operators of appliances with a full
charge of 50 or more pounds of
refrigerant must maintain
documentation from quarterly or annual
leak inspections that includes the date
of inspection, method used for the
inspection, a list of locations where
leaks were discovered, and a
certification that all visible and
accessible parts of the appliance were
inspected. Technicians conducting leak
inspections must provide such
documentation to the owner or operator.
Alternatively, owners or operators may
install an automatic leak detection
system and maintain records for that
system, including records showing that
the system is audited or calibrated
annually and records related to the leaks
that the system identifies.
• Full Charge: Owners or operators of
appliances with a full charge of 50 or
more pounds of refrigerant must
maintain records relating to the full
charge of the appliance, including
records documenting what the full
charge amount is for such appliances,
how it was determined, the range and
its midpoint for the full charge, and any
revisions to the full charge. The record
for the current full charge must be
maintained until three years after the
appliance is retired.
• Service Records Provided by
Technicians: Persons adding or
removing refrigerant from an appliance
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with a full charge of 50 or more pounds
of refrigerant must provide the owner or
operator with documentation containing
the identity and location of the
appliance; the date and type of
maintenance, service, repair, or disposal
performed; the parts of the appliance
serviced, maintained, repaired, or
disposed of; the name of the person
performing the maintenance, service,
repair or disposal; and the amount and
type of refrigerant added to or removed
from the appliance. The appliance
owner or operator must maintain service
records provided by technicians.
• Verification Tests: Owners or
operators of any appliance with a full
charge of 50 or more pounds of
refrigerant must maintain records
relating to any verification tests,
including records of the dates, types,
and results of all initial and follow-up
verification tests. Technicians
conducting verification tests must
provide documentation of such
activities to the owner or operator.
• Retrofit/Retirement Plans: Owners
or operators of appliances with a full
charge of 50 or more pounds of
refrigerant that are subject to retrofit/
retirement requirements must maintain
retrofit or retirement plans. The plan
must contain the following information:
Identification and location of the
appliance; type and full charge of the
refrigerant used; type and full charge of
the refrigerant to which the appliance
will be converted, if retrofitted; itemized
procedure for converting the appliance
to a different refrigerant, including
changes required for compatibility with
the new substitute, if retrofitted; plan
for the disposition of recovered
refrigerant; plan for the disposition of
the appliance, if retired; and a schedule,
not to exceed one year, for completion
of the appliance retrofit or retirement.
• Requests to Extend the Deadline to
Repair or Retrofit/Retire Appliances:
Owners or operators of appliances with
a full charge of 50 or more pounds of
refrigerant must maintain copies of
extension requests.
• Chronically Leaking Systems:
Owners or operators of appliances with
a full charge of 50 or more pounds of
refrigerant that leak 125 percent or more
of the full charge in a calendar year
period must maintain copies of reports
submitted to EPA.
• Mothballing: Owners or operators of
appliances with a full charge of 50 or
more pounds of refrigerant that
mothball an appliance must keep
records documenting when the system
was mothballed and when they add
refrigerant back into the appliance.
• Purged Refrigerant: Owners or
operators of appliances with a full
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charge of 50 or more pounds of
refrigerant who exclude from their leak
rate calculation purged refrigerant that
is destroyed must maintain records
related to the destruction of that purged
refrigerant, including records that
demonstrate that a 98 percent or greater
destruction efficiency is met and that
include flow rate, quantity or
concentration of the refrigerant in the
vent stream, and periods of purge flow.
• Seasonal Variances: Owners or
operators of appliances with a full
charge of 50 or more pounds of
refrigerant who exclude additions of
refrigerant due to seasonal variance
from their leak rate calculation must
maintain records stating that they are
using the seasonal variance flexibility
and documenting the amount added and
removed.
• Lists of Certified Recovery
Equipment and Testing Results:
Organizations that are approved to
certify refrigerant recovery and/or
recycling equipment must maintain
records of equipment testing and
performance and a list of equipment
that meets EPA requirements. These
records must be maintained for three
years after the equipment is no longer
offered for sale.
• Proof of Certification for
Technicians: Technicians who have
passed the section 608 Type I, II, III or
Universal test, must keep a copy of their
certification at their place of business.
These records must be maintained for
three years after a certified individual
no longer operates as a technician.
• Sales Restriction: Anyone selling
ODS or a non-exempt substitute
refrigerant must document the name of
the purchaser, the date of sale, and the
quantity of refrigerant purchased. In
instances where the buyer employs a
certified technician, the seller must
keep the information provided by the
buyer to demonstrate that at least one
technician is properly certified. Copies
of technician certifications must be
maintained for three years after each
purchase. These records would not
apply to the sale of small cans of
substitute refrigerant for servicing
MVACs.
• Small Cans of Substitute
Refrigerant for MVAC Servicing: Anyone
manufacturing small cans of substitute
refrigerant with a self-sealing valve for
use in an MVAC must maintain records
verifying that the self-sealing valves do
not leak more than 3.00 grams per year
when the self-sealing valve is closed,
consistent with appendix E to subpart F,
as revised.
• Technician Certification Programs:
Organizations that certify technicians
must maintain records of who they
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certify, the scores of all certification
tests administered, and the dates and
locations of all tests administered.
These records must be maintained as
long as they are in operation, not just for
three years. If a previously approved
technician certifying organization stops
certifying technicians for any reason,
they must ensure those records are
transferred to another certifying
program or EPA. The recordkeeping
requirements can be found in section (g)
of appendix D of this subpart.
• Reclaimers: Reclaimers must
maintain records, by batch, of the
analyses conducted to verify that
reclaimed refrigerant meets the
necessary specifications. On a
transactional basis, reclaimers must
maintain records of the names and
addresses of persons sending them
material for reclamation and the
quantity of the material (the combined
mass of refrigerant and contaminants)
by refrigerant type sent to them for
reclamation.
4. Summary of Reporting and
Notification Provisions
Reporting and notification are
important components of the National
Recycling and Emission Reduction
Program and allow EPA to track
compliance with the requirements. A
summary of some key requirements is
included here, and additional
discussion may be found in other
sections of this notice. Please consult
the appropriate regulatory provision for
a complete list of reporting and
notification requirements. All of these
reporting requirements are new for
equipment containing non-exempt
substitutes. Unless the information is
claimed as confidential business
information or as otherwise noted, all
notifications must be submitted
electronically to 608reports@epa.gov.
Electronic submission of reports should
decrease burden on both EPA and the
regulated community.
• Extensions to the 30-day or 120-day
Leak Repair Requirement: Owners or
operators of appliances with a full
charge of 50 or more pounds of
refrigerant must request an extension
from EPA when seeking additional time
to complete repairs.
• Extensions to Retrofit or Retire
Appliances: Owners or operators of
appliances with a full charge of 50 or
more pounds of refrigerant must request
an extension from EPA when seeking
additional time to complete a retrofit or
retirement.
• Relief from the Obligation to
Retrofit or Retire an Appliance: Owners
or operators who are retrofitting or
retiring an appliance with a full charge
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of 50 or more pounds of refrigerant may
request that EPA relieve them of that
obligation if they can establish within
180 days of the plan’s date that the
appliance no longer exceeds the
applicable leak rate. The owner or
operator must provide the retrofit or
retirement plan; the date that the
requirement to develop a retrofit or
retirement plan was triggered; the leak
rate; the method used to determine the
leak rate and full charge; the location of
the leak(s) identified in the leak
inspection; a description of repair work
that has been completed; a description
of repair work that has not been
completed; and a description of why the
repair was not conducted within the
required time frames.
• Chronically Leaking Systems:
Owners or operators must submit a
report to EPA for any appliance with a
full charge of 50 or more pounds of
refrigerant that leaks 125 percent or
more of the full charge in a calendar
year. This report must describe efforts to
identify leaks and repair the appliance.
• Purged Refrigerant: The first time
that owners or operators of appliances
with a full charge of 50 or more pounds
of refrigerant exclude purged refrigerant
that has been destroyed from their leak
rate calculation, they must provide a
one-time report to EPA that includes the
identification of the facility and a
contact person; a description of the
appliance; a description of the methods
used to determine the quantity of
refrigerant sent for destruction and type
of records that are being kept; the
frequency of monitoring and datarecording; and a description of the
control device, and its destruction
efficiency.
• Previously Certified Recovery/
Recycling Equipment: Organizations
that are approved to certify refrigerant
recovery and/or recycling equipment
must inform EPA if subsequent tests
indicate a previously certified model
line for recovery and/or recycling
devices does not meet EPA
requirements.
• Technician Certification Programs:
Organizations that certify technicians
must publish online lists/databases of
the people that they certify.
Organizations must report to EPA twice
a year the pass/fail rate and testing
schedules. Organizations that receive
records from a program that no longer
offers the certification test must inform
EPA within 30 days of receiving these
records. The notification must include
the name and address of the program to
which the records have been
transferred. The reporting requirements
can be found in section (g) of appendix
D of this subpart.
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• Reclaimer Change of Business
Information, Location or Contact
Information: If a reclaimer changes
address or management, they must
notify EPA within 30 days. Since
reclaimer certification is not
transferable, if ownership changes, the
new owner must certify to EPA that they
will meet the reclaimer certification
requirements.
• Amounts Reclaimed: Reclaimers
must report annually the total aggregate
quantity of material sent to them for
reclamation (the combined mass of
refrigerant and contaminants) by
refrigerant type, the total mass of each
refrigerant reclaimed, and the total mass
of waste products.
M. Effective and Compliance Dates
EPA proposed that the final rule
become effective on January 1, 2017,
with later compliance dates for specific
provisions that stakeholders may need
additional time to implement. The
‘‘effective date’’ is the date that the
regulatory text in the Code of Federal
Regulations at 40 CFR part 82, subpart
F will change. Unless otherwise
specified, it is also the date by which
the regulated community must comply
with the revised regulation. Additional
‘‘compliance dates’’ are the dates by
which the regulated community must
comply with specific provisions of the
revised regulation.
One commenter stated that January 1,
2017, is too aggressive a compliance
date, given the length of time needed to
issue the final rule and the rule’s size
and complexity. EPA responds that
while the Agency is finalizing an
effective date of January 1, 2017, as
proposed, it is also establishing later
compliance dates for some new
provisions as well as for the application
of some existing provisions to nonexempt substitutes. Where a later
compliance date applies, the revised
regulations explicitly specify that later
compliance date.
The existing provisions related to
ODS that were not substantively
modified by the rule continue to apply
with respect to ODS. For minor changes
to existing ODS provisions, the
compliance date is the same as the
effective date of the rule. Provisions in
this final rule for which there is no
delayed compliance date with respect to
ODS include the sales restriction,
technician certification requirements,
safe disposal requirements, evacuation
requirements, restriction on the sale of
used refrigerant, requirement that
appliances include a process stub or
servicing aperture, and the
recordkeeping associated with those
provisions. While in most instances this
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rule establishes a later compliance date
for application of these provisions to
non-exempt substitutes, the restriction
on the sale of used substitute refrigerant
and the requirement that appliances
containing non-exempt substitutes
include a process stub or servicing
aperture apply for non-exempt
substitutes as of January 1, 2017. In
addition, the revised standards for the
sale or import of recovery and/or
recycling equipment apply for both ODS
and non-exempt substitutes as of
January 1, 2017.
This rule establishes a compliance
date of January 1, 2018, for many
provisions that are newly applicable to
substitute refrigerants. These include
the sales restriction, technician
certification requirements, safe disposal
requirements, evacuation requirements,
and the recordkeeping associated with
those provisions. The new requirement
that small cans of substitute MVAC
refrigerant be equipped with self-sealing
valves will also apply as of January 1,
2018. In addition, this rule establishes a
compliance date of January 1, 2018, for
the new recordkeeping requirement
associated with the disposal of
appliances containing more than five
and less than 50 pounds of either ODS
or non-exempt substitute refrigerant.
Lastly, this rule establishes a
compliance date of January 1, 2019, for
the revised leak repair provisions,
regardless of whether the appliance
contains an ODS or a non-exempt
substitute refrigerant.
The following sections discuss EPA’s
rationale for these staggered compliance
dates.
1. Section 82.154(c)—Refrigerant Sales
Restriction
EPA proposed January 1, 2017, as the
compliance date for the sales restriction
of all refrigerant (non-exempt
substitutes or ODS). EPA also proposed
to require that small cans of MVAC
refrigerant be manufactured with selfsealing valves by one year from the
publication of the final rule and that the
sale of small cans without self-sealing
valves cease by two years from
publication of the final rule.
EPA is finalizing a compliance date of
January 1, 2018, for the sales restriction
as applied to non-exempt substitute
refrigerants. Changes related to the sales
restriction, as applied to ODS, apply
January 1, 2017, as proposed. EPA is
also finalizing a compliance date of
January 1, 2018, to equip small cans
with a self-sealing valve. EPA is not
finalizing a sell-through requirement in
this rule.
EPA is delaying the compliance date
for the sales restriction so that it
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matches the compliance dates for other
aspects of the rule related to sales of
non-exempt substitute refrigerants.
Specifically, EPA proposed one year
from the date of publication of the final
rule as the date by which technicians
working with appliances containing
non-exempt substitutes must be
certified and the date by which small
cans of MVAC refrigerant must be
equipped with a self-sealing valve. As
discussed below, EPA is finalizing
January 1, 2018, as the compliance date
for both of those provisions. To
minimize potential conflicts by having
different compliance dates, EPA is
extending the compliance date for the
sales restriction of substitute refrigerants
to January 1, 2018.
With regards to small cans of MVAC
refrigerant, manufacturers, distributors
and retailers of automotive refrigerant
supported the proposed ‘‘manufactureby’’ date of one year from publication of
the final rule, but commented that they
oppose a sell-through date for small
cans that do not have self-sealing valves.
They commented that such a
requirement would be inefficient,
burdensome, costly, and
environmentally problematic. It would
require all retailers to know of the
requirement and establish processes for
returning unsold cans back to the
manufacturer for destruction. More
likely, the cans may be improperly
disposed of, which would negate the
environmental benefit of the new
provisions. One commenter stated that a
‘‘manufacture-by’’ date would shift
EPA’s burden in ensuring compliance
from a few manufacturers to thousands
of retailers. Furthermore, commenters
cited EPA’s July 2015 SNAP rule (80 FR
42901; July 20, 2015) which listed HFC–
134a as unacceptable for use as an
aerosol as of a ‘‘manufacture-by’’ date,
rather than a ‘‘sell-by’’ date. CARB
commented on EPA’s proposal for a
two-year sell-through period that a oneyear sell-through period has been found
to be acceptable in their experience.
EPA responds that to allow all entities
in the distribution chain time to plan for
and communicate changes to the sales
restriction on non-exempt substitute
refrigerants, as well as the requirement
for self-sealing valves on small cans,
EPA is finalizing a sales restriction date
and ‘‘manufacture-by’’ or ‘‘import-by’’
date of January 1, 2018. This will
provides slightly more time than one
year from publication of the final rule,
which EPA proposed for the self-sealing
valve requirement. Generally speaking,
EPA has attempted to simplify the
compliance dates so they do not fall in
the middle of a month or during the
middle of the cooling season.
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In response to the comments received
on EPA’s proposal to allow small cans
manufactured and placed into initial
inventory or imported before that date
to be sold for one additional year, EPA
is not finalizing the sell-through
requirement and is finalizing only a date
by which small cans must be
manufactured or imported with a selfsealing valve. EPA agrees that this is the
least-burdensome option and that it
avoids the potential for any unintended
consequences of a ‘‘sell-by’’ date.
2. Section 82.155—Safe Disposal of
Small Appliances, MVAC, and MVACLike Appliances
EPA proposed that the extension of
the requirements for the recovery of
non-exempt substitute refrigerant prior
to disposal/recycling of small
appliances, MVACs, and MVAC-like
appliances take effect one year from
publication of the final rule. EPA
proposed that changes related to ODS
equipment be effective January 1, 2017.
One commenter supported the
proposed one-year extension to the
compliance date for substitute
refrigerants. EPA is finalizing a
compliance date of January 1, 2018, for
the extension to non-exempt substitute
refrigerants. This will provide sufficient
time for final disposers such as scrap
recyclers to learn about the extension to
non-exempt substitutes and make any
adjustments needed to start maintaining
records associated with disposal of
appliances containing non-exempt
substitutes. Using January 1, 2018,
rather than one year from publication
will also make communicating the
compliance date for the rule easier.
Because EPA is not making
substantive changes to the existing
requirements for appliances containing
ODS, EPA does not expect that final
disposers will need extra time to adjust
to the updates in this rule for those
appliances. Accordingly, EPA is
finalizing a compliance date for ODS
appliances of January 1, 2017.
3. Section 82.156—Proper Evacuation of
Refrigerant From Appliances
EPA proposed that the extension of
the requirements related to the
evacuation of non-exempt substitute
refrigerants before the maintenance,
servicing, repair, or disposal of
appliances apply one year from
publication of the final rule. EPA
proposed that changes related to ODS
equipment apply January 1, 2017.
Two commenters supported the
proposed one year extension to the
compliance date for non-exempt
substitutes. Another commenter
requested two years on the ground that
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recovery and reclamation equipment
may need to be modified to meet the
requirements of the final rule. EPA
responds that the Agency is not
requiring that existing recovery and/or
recycling equipment be modified or
replaced with new equipment.
EPA is finalizing a compliance date of
January 1, 2018, for the extension of the
requirements to appliances containing
non-exempt refrigerants. This will
provide affected entities time to learn
about the extension and make any
adjustments needed to apply the
required practices to the evacuation of
appliances containing non-exempt
substitutes. Because EPA is not making
substantive changes to the existing
requirements for appliances containing
ODS, EPA does not expect that affected
entities will need extra time to adjust to
the updates in this rule for those
appliances. Accordingly, EPA is
finalizing a compliance date for ODS
appliances of January 1, 2017.
EPA is establishing a delayed
compliance date of January 1, 2018, for
the new requirement to keep records
upon disposal of appliances containing
either a class I, class II, or non-exempt
substitute refrigerant. This is slightly
more than one year from publication of
the final rule, which was what EPA
proposed. The delayed compliance date
will allow affected entities to establish
a recordkeeping program to track the
amount of refrigerant recovered from
appliances that are disposed of in the
field. EPA expects that the same amount
of time will be needed for ODS and nonODS appliances because this is a new
requirement, not an update to an
existing requirement.
4. Section 82.157—Appliance
Maintenance and Leak Repair
This rule makes significant revisions
to the leak repair provisions, including
lowering the leak rates, requiring leak
repair verification tests on new types of
equipment, and modifying the
recordkeeping and reporting
requirements. In addition, owners and
operators of appliances using nonexempt substitute refrigerants that were
previously not covered by any subpart
F required practices will have to
familiarize themselves with the
requirements. EPA is therefore
establishing a later compliance date for
the appliance maintenance and leak
repair requirements than for most other
provisions.
EPA proposed a compliance date 18
months from publication of the final
rule. One commenter suggested that
EPA shorten the compliance date to 12
months and two commenters agreed that
it should be at minimum 18 months.
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Five commenters recommended more
than 18 months, with the longest
extensions ranging from 24 to 36
months after the publication of the final
rule. These commenters stated that later
dates would decrease the costs of
compliance and give companies
adequate time to train employees and
update current systems to meet the
requirements of the rule. Extending the
compliance dates would also allow
more time for owners or operators to
bring equipment up to the new
standards, and avoid having to
potentially conduct numerous repairs or
replacements at once. Commenters who
supported a 36-month extension noted
constraints with the federal budget cycle
and acquisition requirements or referred
to Maximum Achievable Control
Technology rules that typically provide
three years to comply.
Because the leak repair provisions
already provide the opportunity for
extensions for delays caused by the
federal agency appropriations and/or
procurement process, EPA disagrees
with federal agencies requesting a 36
month extension to the compliance
date. EPA agrees with commenters that
additional time may be needed to
understand the regulations and to make
repairs on systems that have not
previously been subject to the subpart F
required practices. Therefore, EPA is
establishing a compliance date of
January 1, 2019. This date is two years
from the effective date, and more than
24 months from publication of the final
rule. This is sufficient time for owners
and operators of appliances with 50 or
more pounds of refrigerant to learn
about the updated requirements; update
systems, standard operating procedures,
and training materials to best administer
the requirements; and fix leakier
systems.
Until January 1, 2019, the leak repair
provisions at § 82.156(i) and the
associated recordkeeping requirements
at § 82.166 continue to apply as
specified to appliances containing ODS
refrigerant. Those leak repair provisions
use terminology contained in the
definitions as they existed prior to this
rulemaking. EPA has added those
unmodified definitions to § 82.156(j) for
the purposes of implementing
§ 82.156(i) until the new provisions take
effect January 1, 2019.
that recovery and recycling equipment
may need to be modified to meet the
requirements of the final rule. EPA
responds that the Agency is not
requiring that existing recovery and/or
recycling equipment be modified or
replaced with new equipment certified
for use with non-exempt substitute
refrigerants. Rather, EPA is requiring
only that newly manufactured or
imported recovery and/or recycling
equipment meet the new standards
upon the compliance date.
5. Section 82.158—Recovery and
Recycling Equipment
EPA proposed that the standards for
recovery and recycling equipment apply
to the manufacture and import of
equipment for non-exempt substitutes
as of January 1, 2017. One commenter
requested additional time on the ground
V. Possible Future Revisions to
Subpart F
EPA requested input on other aspects
of the National Recycling and Emission
Reduction Program that might be
addressed in a future rulemaking.
Specifically EPA requested feedback on
(1) establishing a voluntary program for
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6. Section 82.161—Technician
Certification Requirements
EPA proposed that technicians be
certified to handle non-exempt
substitute refrigerants by one year from
publication of the final rule. EPA
proposed that changes related to ODS
apply January 1, 2017.
One commenter supported the one
year extension to the compliance date
for non-exempt substitute refrigerants.
Another commenter requested two years
so as to allow time for certifying
organizations to write and review the
certification test questions as well as
train, or re-train, technicians on that
new material.
EPA is establishing a compliance date
of January 1, 2018, for technicians to be
certified to handle non-exempt
substitute refrigerants. This is slightly
more than the proposal of one year from
publication of the final rule. This will
provide time for EPA to update the test
bank with questions related to nonexempt substitute refrigerants and for
certifying organizations to update their
testing materials to use the new
questions. EPA does not anticipate that
a two year extension would be
necessary because HVACR contractors
are generally working on both ODS
refrigerants and non-exempt substitute
refrigerants, and there is not likely to be
a rush of contractors needing to be
certified.
EPA is also finalizing the compliance
dates for the publication of lists of
certified technicians as proposed. As
such, any technician certified on or after
January 1, 2017, must be included in a
publicly accessible list of certified
technicians or provided the ability to
opt out. Technician certification
programs must make these lists
available starting January 1, 2018.
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supermarkets based on their corporatewide average leak rate; (2) establishing
more stringent certification
requirements for reclaimers; (3)
establishing a third-party certification or
audit program for reclaimers; (4)
requiring labeling of reclaimed
refrigerant; (5) moving further upstream
the responsibility to recapture
refrigerant from appliances being
disposed of; (6) requiring recertification
of currently certified technicians; and
(7) establishing a technician
certification requirement or sales
restriction for flammable refrigerants.
EPA is not taking any final action on
these topics in this rule but does greatly
value the information provided by
commenters. EPA has prepared a
summary of these comments that is
available in the docket for this rule.
VI. Economic Analysis
For the reasons explained in Section
III of this preamble, EPA considered
economic factors in the development of
this rule. EPA considered the costs of
different actions that would achieve the
goals of this rule to individual entities
and the United States economy as a
whole. While selecting regulatory
actions that would achieve the goals of
this rule, EPA elected to consider the
costs of different actions to individual
entities and the United States economy
as a whole. Many commenters claimed
that the benefits of the proposed
regulatory provisions do not justify the
costs, while four comments supported
the cost effectiveness of the proposed
rule. EPA has taken these comments
into consideration and is finalizing
several provisions that will be less
burdensome than proposed. This
section provides a brief overview of how
the Agency calculated costs and then
discusses major revisions to the final
rule that affect EPA’s economic analysis.
A full description of the cost analyses is
included in the technical support
document Analysis of the Economic
Impact and Benefits of Final Revisions
to the National Recycling and Emission
Reduction Program, which can be found
in the docket.
To estimate the incremental costs of
the regulatory revisions, the Agency
developed a set of model entities with
a distribution of different model
facilities, each of which could contain a
set of model appliances. This set of
model entities was used to represent the
potentially affected entities in a variety
of economic sectors in the United
States, and they were developed based
on EPA’s Vintaging Model and crosschecked with the 2013 dataset of repair
records developed under California’s
RMP. Each model entity reflects
information about the typical number of
facilities in a given sector and size
category and the number of pieces of
equipment in each equipment category
that are likely to be owned and/or
operated by each facility. By combining
the model entities with economic data
on potentially affected industries from
the United States Census, EPA obtained
a model for the potentially affected
population. By applying the costs of
leak inspections, repairs, recordkeeping
and reporting, self-sealing cans for
MVAC servicing, and other regulatory
revisions to this population, EPA
estimated the costs to individual entities
and the total cost to the economy.
Some regulatory revisions in this
action, such as providing extensions to
owners or operators of comfort cooling
and commercial refrigeration before
having to replace leaking appliances
reduce the cost of compliance to owners
of ODS-containing equipment. These
reductions were included in the
incremental cost of the action.
As detailed more fully in the
technical support document, the
rulemaking includes new compliance
costs of approximately $75.5 million
split into approximately $32.5 million
for owners and operators of equipment
containing ODS and $43 million in nonODS systems. Offsetting the new
compliance costs are reductions in cost
due to the removal of some regulatory
requirements and increasing flexibility
for repairs. These offsetting costs total
$51 million, all related to equipment
containing ODS. Taken together (the
new compliance costs less the offsetting
costs), EPA estimates that the net total
cost to comply with the requirements of
this final rule is $24.5 million per year
(Table 3 shows these net costs at both
the rule component level and for the
total rule).
TABLE 3—INCREMENTAL ANNUAL COMPLIANCE COSTS BY RULE COMPONENT (2014$) WITH 7% AND 3% DISCOUNT
RATES
Total incremental compliance costs
(7% discount rate)
Rule component
HFC
ODS
Total
Total incremental compliance costs
(3% discount rate)
HFC
ODS
Total
Leak Repair:
Comfort Cooling ................................
Commercial Refrigeration .................
IPR ....................................................
Leak Inspection ........................................
Reporting & Recordkeeping .....................
Self-sealing Valves on Small Cans .........
$5,046,000
1,709,000
385,000
21,703,000
11,101,000
3,070,000
¥$38,191,000
¥10,137,000
31,000
27,460,000
2,350,000
........................
¥$33,145,000
¥8,428,000
417,000
49,163,000
13,451,000
3,070,000
$2,437,000
823,000
186,000
21,703,000
11,101,000
3,070,000
¥$18,705,000
¥4,963,000
13,000
27,460,000
2,350,000
........................
¥$16,268,000
¥4,139,000
200,000
49,163,000
13,451,000
3,070,000
Total ..................................................
43,014,000
¥$18,487,000
24,528,000
39,320,000
6,155,000
45,477,000
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Totals may not sum due to independent rounding.
Some regulatory revisions, by
reducing the amount of refrigerant lost
to leaks, also result in savings for
equipment owners or operators of the
cost of purchasing replacement
refrigerant. EPA estimates that affected
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entities would avoid spending over $44
million in refrigerant purchases alone
due to the regulatory revisions. The
compliance costs and refrigerant savings
combined are estimated to be savings of
$19.6 million per year. Furthermore,
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costs could additionally be lower
because appliances running with the
correct amount of refrigerant are
generally more energy efficient to
operate and last longer.
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TABLE 4—TOTAL ANNUAL REFRIGERANT SAVINGS (2014$) AND COMBINED ANNUAL COST AND ANNUAL SAVINGS 2ITH 7%
AND 3% DISCOUNT RATE
Annual refrigerant savings
7% Discount rate
Rule component
3% Discount rate
Combined
annual
savings and
compliance
costs
Incremental
compliance
costs
Combined
annual
savings and
compliance
costs
HFC
Leak Repair:
Comfort Cooling ......
Commercial Refrigeration .................
IPR ..........................
Leak Inspection ..............
Reporting & Recordkeeping .......................
Self-sealing Valves on
Small Cans .................
Total .................
ODS
Total
Incremental
compliance
costs
¥$9,853,000
¥$20,221,000
¥$30,073,000
¥$33,145,000
¥$63,218,000
¥$16,268,000
¥$46,341,000
¥3,439,000
¥1,582,000
......................
¥7,514,000
¥1,533,000
........................
¥10,953,000
¥3,115,000
........................
¥8,428,000
417,000
49,163,000
¥19,381,000
¥2,698,000
49,163,000
¥4,139,000
200,000
49,163,000
¥15,092,000
¥2,915,000
49,163,000
......................
........................
........................
13,451,000
13,451,000
13,451,000
13,451,000
......................
........................
........................
3,070,000
3,070,000
3,070,000
3,070,000
¥14,874,000
¥29,268,000
¥44,141,000
24,528,000
¥19,613,000
45,477,000
1,336,000
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Totals may not sum due to independent rounding.
Several commenters questioned the
validity of EPA’s cost estimates and
some provided examples of costs from
their own business/organizations. One
commenter said that, given the amount
of paperwork and added compliance
requirements in the proposed rule, the
cost estimates are implausibly low and
call into question the fundamental
integrity of the Agency’s economic
analysis. Another said that they would
estimate the cost to implement the new
requirements to be well in excess of
$100 million just to repair and
potentially replace IPR systems, noting
that the replacement of a single complex
IPR system can be as high as $10
million.
EPA responds that the aggregate costs
and savings for the economy as a whole
would not be expected to be distributed
evenly across affected entities. For
example, owners of ODS-containing
equipment with low leak rates might
only incur costs for recordkeeping. On
the other hand, owners of HFCcontaining equipment with high leak
rates might incur costs of repairing
leaks, though they would also realize
savings due to reduced refrigerant
purchases. Owners of ODS-containing
comfort cooling or commercial
refrigeration appliance with high leak
rates may also incur costs of repairing
leaks but also substantial cost savings by
not having to retrofit or retire the
appliance if unable to repair within 30
days, given the extensions provided in
the final rule.
Several commenters claimed that
requiring all systems to have annual or
quarterly leak inspections would
impose significant costs on owners of all
systems including those systems that do
not leak or leak very little. One
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commenter, using their estimate for the
cost of each leak inspection of a
particular facility’s appliances, when
taken quarterly across some 5,200 retail
stores and supporting business units,
stated that the impact on their company
would exceed $10 million. Another
commenter called quarterly leak
inspections redundant if it is already
required that leaks be fixed in a timely
manner. Two commenters supported
leak inspections and trade group
supported periodic leak inspections as a
proactive means to detect leaks, reduce
refrigerant emissions, and maintain
energy efficiency of equipment.
The Agency responds that a proactive
plan of maintenance leads to reduced
emissions of refrigerant and is part of
the best practices for operation of these
systems. Discussions with members of
industry and reports from the
GreenChill program support the
effectiveness of a program of regular
inspections to lower average leak rates.
However, to allow for flexibility in how
system owners and operators implement
their refrigeration management
programs, especially for the least leaky
equipment, EPA is not finalizing a
requirement that all systems undergo
periodic leak inspections. Only systems
that show a history of excessive
emissions by exceeding the leak rate
threshold will require periodic
inspections, and then only for a limited
time if the leak rate of the system is
addressed effectively. This will reduce
the burden on owners of systems that
are not responsible for emissions, while
focusing attention on systems that
require it. EPA estimates that this will
affect 282,000 appliances, compared to
approximately 1.5 million under the
proposed rule.
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EPA’s analysis of the costs of leak
inspection used the median hourly rate
for heating, air-conditioning, and
refrigeration mechanics and installers
provided by the Bureau of Labor
Statistics, along with an additional
110% for overhead. EPA assumed that
leak inspections could be carried out
quickly because the proposal allowed
employees and not certified technicians
to conduct the inspections. However, as
discussed previously, a number of
stakeholders claimed that inspections
by employees not specialized in
refrigeration would be far less effective
and pointed out that the standard
practice for many entities is to hire
technicians for inspections. EPA is
requiring in this final rule that leak
inspections be conducted by certified
technicians. EPA’s final analysis
continues to use the average rate
provided by the Bureau of Labor
Statistics but has increased the number
of hours for each inspection.
Several commenters said that the
costs of completely replacing a system
if it leaked more than 75 percent of its
full charge in two consecutive years
were very high, and that these costs
would not necessarily fall on those
whose poor maintenance practices
allowed for excessive emissions. They
also commented that the provision was
inefficient because all of the system
components would need to be replaced,
even those that were known not to be
leaking, imposing additional costs with
no additional benefit.
In response to the potential significant
costs that commenters said the proposed
‘‘chronic leaker’’ provision would incur,
EPA is finalizing a modification of this
provision that would instead require
reporting to EPA rather than retirement
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of an appliance. This will greatly reduce
the costs on owners of systems with
very high emissions. While EPA had not
estimated the costs or benefits of the
proposed chronic leaker provision, EPA
has calculated the total annual reporting
burden associated with the final
provision to be $126,000.
Two commenters said that requiring
all leaks be fixed after a system exceeds
the threshold leak rate would lead to
high costs with diminishing returns as
smaller and smaller leaks were repaired.
EPA maintains that once a system has
been evacuated for repair it is a best
practice to repair any significant leaks.
Doing so makes financial sense because
allowing leaks to continue leads to the
purchase of more refrigerant, reduced
energy efficiency, possible increased
service costs if the system must be shut
down and repaired again, and increased
risk of loss of cooling. However, EPA
agrees that some leaks may allow very
small amounts of refrigerant to escape
and that some leaks are difficult to
access or repair. Therefore, taking into
account the comments, EPA is not
finalizing the requirement that all
identified leaks be repaired.
Two commenters claimed that
lowering the maximum leak rate for IPR
systems to 20 percent would lead to
significant economic burden for some
businesses, and one of whom said that
EPA has not provided adequate benefits
to justify this requirement.
EPA has estimated that lowering the
maximum rate at which systems may be
allowed to leak perpetually without
being repaired protects the environment
by reducing emissions of pollutants.
EPA recognizes that maintenance of IPR
systems presents particular challenges.
These systems are often very large and
complex, making finding leaks more
difficult. They can also be extremely
costly to shut down to allow for repairs.
Therefore, in consideration of comments
and other feedback from stakeholders,
the Agency is finalizing a leak rate of 30
percent for IPR systems. While this will
reduce benefits, we hope to strike a
balance between the costs and benefits
of this provision that will allow greater
flexibility in the management of these
systems. Under the proposed leak rate of
20 percent, the EPA estimates benefits
of 0.63 MMTCO2eq with costs of $7
million for leak inspections and repair.
With the final leak rate of 30 percent,
estimated benefits are 0.44 MMTCO2eq
with costs of $5.5 million.
One commenter stated that there is
substantial uncertainty in the transition
pathway away from HFCs due to EPA’s
SNAP rule that changed the listing
status for certain substitute refrigerants
(80 FR 42870) (‘‘SNAP Program Status
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Change Rule’’). The commenter
encouraged EPA to consider a wider
range of possible baseline futures when
calculating the 2020 and 2025 benefits
of the rule.
EPA responds that the Agency has
considered that many end users will
change the ODS substitutes being used
because of the SNAP rule and EPA
considered such change when
estimating the benefits of this final
action. EPA assumed transitions away
from substitutes that are no longer
acceptable in some end-uses, most
notably in commercial refrigeration
based on the most likely scenario
detailed in Climate Benefits of the SNAP
Program Status Change Rule found in
docket number EPA–HQ–OAR–2014–
0198–0239. However, many of the
differences between the scenarios in
that analysis have little or no effect on
the estimated benefits of the present
action. For example, the analysis of the
SNAP rule looked only at transitions of
MVAC units for exports, as it is
assumed that the domestic market will
already have transitioned away from
HFC–134a by 2020 due to EPA’s earlier
Light Duty Vehicle rule. Therefore the
SNAP rule would not be expected to
introduce uncertainty in the benefits in
2020 or 2025 in MVAC servicing. As
another example, the different SNAP
scenarios assumed that low-temperature
commercial refrigeration appliances
would begin to transition from HFC–
134a to R–450A or R–513A in different
years, but all three scenarios assume
that transition will reach a maximum of
50 percent by 2020. Given the small
differences in the expected equipment
stock related to uncertainty in the
effects of the SNAP Program Status
Change Rule, we believe that assuming
the effects of the ‘‘most likely’’ scenario
from the SNAP analysis provides a
model universe of appliances that is
realistic and that avoids any possibility
of double counting benefits between the
two rules.
Under the Small Business Regulatory
Enforcement Fairness Act (SBREFA),
federal agencies must consider the
effects regulations may have on small
entities. If a rule may have a significant
economic impact on a substantial
number of small entities (SISNOSE), the
Agency would be required to take
certain steps to ensure that the interests
of small entities were represented in the
rulemaking process. To determine if this
was necessary, EPA used the model
entity analysis to ascertain the
likelihood that the revisions would have
a SISNOSE. EPA estimates that
approximately 740 of the approximately
854,580 affected small businesses could
incur costs in excess of 1 percent of
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annual sales and that fewer than 80
small businesses could incur costs in
excess of 3 percent of annual sales.
These levels are below the thresholds
used in other Title VI rulemakings
under which it can be presumed that an
action will have no SISNOSE.
Nevertheless, EPA consulted numerous
stakeholders, including small
businesses, in the development of this
rule.
The full description of the cost
analyses, including sensitivity analyses
of key assumptions and alternate
options, is included in the technical
support document Analysis of the
Economic Impact and Benefits of Final
Revisions to the National Recycling and
Emission Reduction Program, which can
be found in the docket for this action.
VII. Statutory and Executive Order
Reviews
A. Executive Order 12866: Regulatory
Planning and Review and Executive
Order 13563: Improving Regulation and
Regulatory Review
This action is a significant regulatory
action that was submitted to OMB for
review. This action was deemed to raise
novel legal or policy issues. Any
changes made in response to OMB
recommendations have been
documented in the docket. EPA
prepared an economic analysis of the
potential costs and benefits associated
with this action. This analysis is
summarized in Section VI of the notice
and is available in the docket.
B. Paperwork Reduction Act
The information collection activities
in this rule have been submitted for
approval to the Office of Management
and Budget (OMB) under the PRA. The
Information Collection Request (ICR)
document that EPA prepared has been
assigned EPA ICR number 1626.15. You
can find a copy of the ICR in the docket
for this rule, and it is briefly
summarized here. The information
collection requirements are not
enforceable until OMB approves them.
All recordkeeping and reporting
requirements under this program are
specifically described in Section IV.L of
this notice. In order to facilitate
compliance with and enforce the
refrigerant management requirements of
section 608 of the CAA, EPA requires
reporting and recordkeeping by
technicians, technician certification
programs, refrigerant recovery/recycling
equipment testing organizations,
refrigerant wholesalers and purchasers,
refrigerant reclaimers, refrigeration and
air-conditioning equipment owners, and
other establishments that perform
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refrigerant removal, service, or disposal.
EPA has used and will continue to use
these records and reports to ensure that
refrigerant releases are minimized
during the recovery, recycling, and
reclamation processes. The handling
and confidentiality of the reporting
requirements follow EPA’s
confidentiality regulations at 40 CFR
2.201 et seq. for assuring computer data
security, preventing disclosure, proper
storage, and proper disposal.
Respondents/affected entities: Entities
required to comply with reporting and
recordkeeping requirements include
technicians; technician certification
programs; refrigerant wholesalers;
refrigerant reclaimers; refrigeration and
air-conditioning equipment owners and/
or operators; and other establishments
that perform refrigerant removal,
service, or disposal.
Respondent’s obligation to respond:
Mandatory (40 CFR part 82, subpart F).
Estimated number of respondents:
The total number of respondents is
estimated to be approximately 861,374.
Frequency of response: The frequency
of responses vary from once a year to
daily. Public reporting burden for this
collection of information is estimated to
vary from one minute to 9.4 hours per
response, including time for reviewing
instructions and gathering, maintaining,
and submitting information.
Total estimated burden: The total
estimated burden is 580,473 hours (per
year). Burden is defined at 5 CFR
1320.3(b).
Total estimated cost: The total
estimated cost is $34,627,299 (per year).
There are no estimated annualized
capital or operation & maintenance costs
associated with the reporting or
recordkeeping requirements.
Much of this burden is already
covered by the existing requirements in
40 CFR part 82, subpart F, and the
existing ICR, which was last approved
by OMB in December 2014. The OMB
control number for this information
collection is 2060–0256.
An agency may not conduct or
sponsor, and a person is not required to
respond to, a collection of information
unless it displays a currently valid OMB
control number. The OMB control
numbers for the EPA’s regulations in 40
CFR are listed in 40 CFR part 9. When
OMB approves this ICR, the Agency will
announce that approval in the Federal
Register and publish a technical
amendment to 40 CFR part 9 to display
the OMB control number for the
approved information collection
activities contained in this final rule.
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23:27 Nov 17, 2016
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C. Regulatory Flexibility Act (RFA)
I certify that this action will not have
a significant economic impact on a
substantial number of small entities
under the RFA. The small entities
subject to the requirements of this
action are businesses and small
governmental jurisdictions that own or
service comfort cooling, commercial
refrigeration, or IPR equipment. EPA
estimates that approximately 740 of the
approximately 854,580 affected small
businesses could incur costs in excess of
1 percent of annual sales and that fewer
than 80 small businesses could incur
costs in excess of 3 percent of annual
sales. These levels are below the
thresholds under which it can be
presumed that an action will have no
SISNOSE, as used in other Title VI
rulemakings. Details of this analysis are
presented in the Analysis of the
Economic Impact and Benefits of Final
Revisions to the National Recycling and
Emission Reduction Program available
in the docket.
D. Unfunded Mandates Reform Act
(UMRA)
This action does not contain an
unfunded mandate of $100 million or
more as described in UMRA, 2 U.S.C.
1531–1538, and does not significantly or
uniquely affect small governments. This
rule supplements the statutory selfeffectuating prohibition against venting
refrigerants by ensuring that certain
service practices are conducted that
reduce the emissions of ozone-depleting
refrigerants and their substitutes. For
example, this rule strengthens the leak
repair requirements, establishes
recordkeeping requirements for the
disposal of appliances containing more
than five and less than 50 pounds of
refrigerant, and modifies the technician
certification program.
E. Executive Order 13132: Federalism
This action does not have federalism
implications. It will not have substantial
direct effects on the states, on the
relationship between the national
government and the states, or on the
distribution of power and
responsibilities among the various
levels of government.
F. Executive Order 13175: Consultation
and Coordination With Indian Tribal
Governments
This action does not have tribal
implications as specified in Executive
Order 13175. This rule does not
significantly or uniquely affect the
communities of Indian tribal
governments. This rule supplements the
statutory self-effectuating prohibition
against venting refrigerants by ensuring
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82347
that certain service practices are
conducted that reduce the emissions of
ozone-depleting refrigerants and their
substitutes. For example, this rule
strengthens the leak repair
requirements, establishes recordkeeping
requirements for the disposal of
appliances containing more than five
and less than 50 pounds of refrigerant,
and modifies the technician certification
program. Thus, Executive Order 13175
does not apply to this action.
G. Executive Order 13045: Protection of
Children From Environmental Health
and Safety Risks
This action is not subject to Executive
Order 13045 (62 FR 19885, April 23,
1997) because it is not economically
significant as defined in Executive
Order 12866. Nonetheless, the
environmental health or safety risk
addressed by this action may have a
disproportionate effect on children.
Depletion of stratospheric ozone results
in greater transmission of the sun’s
ultraviolet (UV) radiation to the earth’s
surface. The following studies describe
the effects of excessive exposure to UV
radiation on children: (1) Westerdahl J,
Olsson H, Ingvar C. ‘‘At what age do
sunburn episodes play a crucial role for
the development of malignant
melanoma,’’ Eur J Cancer 1994: 30A:
1647–54; (2) Elwood JM Japson J.
‘‘Melanoma and sun exposure: an
overview of published studies,’’ Int J
Cancer 1997; 73:198–203; (3) Armstrong
BK, ‘‘Melanoma: childhood or lifelong
sun exposure,’’ In: Grobb JJ, Stern RS
Mackie RM, Weinstock WA, eds.
‘‘Epidemiology, causes and prevention
of skin diseases,’’ 1st ed. London,
England: Blackwell Science, 1997: 63–6;
(4) Whiteman D., Green A. ‘‘Melanoma
and Sunburn,’’ Cancer Causes Control,
1994: 5:564–72; (5) Heenan, PJ. ‘‘Does
intermittent sun exposure cause basal
cell carcinoma? A case control study in
Western Australia,’’ Int J Cancer 1995;
60: 489–94; (6) Gallagher, RP, Hill, GB,
Bajdik, CD, et al. ‘‘Sunlight exposure,
pigmentary factors, and risk of
nonmelanocytic skin cancer I, Basal cell
carcinoma,’’ Arch Dermatol 1995; 131:
157–63; (7) Armstrong, DK. ‘‘How sun
exposure causes skin cancer: an
epidemiological perspective,’’
Prevention of Skin Cancer. 2004. 89–
116.
H. Executive Order 13211: Actions That
Significantly Affect Energy Supply,
Distribution, or Use
This action is not a ‘‘significant
energy action’’ because it is not likely to
have a significant adverse effect on the
supply, distribution or use of energy.
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I. National Technology Transfer and
Advancement Act
This action involves technical
standards. In some instances, EPA is
deciding to use a modified version of an
industry standard for purposes of this
rule; in others, EPA is deciding to use
an industry standard by reference
exactly as written.
EPA is incorporating by reference UL
1963, Supplement SB, Requirements for
Refrigerant Recovery/Recycling
Equipment Intended for Use with a
Flammable Refrigerant, Fourth Edition,
June 1, 2011. This establishes standards
for refrigerant recovery and refrigerant
recovery/recycling equipment to ensure
the equipment can be used safely with
flammable refrigerants. The standard is
available at www.comm-2000.com or by
writing to Comm 2000, 151 Eastern
Avenue, Bensenville, IL 60106. The cost
is $798 for an electronic copy and $998
for hardcopy. UL also offers a
subscription service to the Standards
Certification Customer Library (SCCL)
that allows unlimited access to their
standards and related documents. The
cost of obtaining this standard is not a
significant financial burden for
equipment manufacturers. Therefore,
EPA concludes that the UL standard
being incorporated by reference is
reasonably available.
EPA is incorporating by reference
standards referenced in AHRI Standard
700–2016. Specifically, these standards
are:
—2008 Appendix C for Analytical
Procedures for AHRI Standard 700–
2014-Normative, 2008. This document
establishes definitive test procedures
for determining the quality of new,
reclaimed and/or repackaged
refrigerants in support of the
standards established in AHRI–700.
An electronic copy of the appendix is
available at www.ahrinet.org. It is also
available by mail at Air-Conditioning,
Heating, and Refrigeration Institute
(AHRI), 2111 Wilson Boulevard, Suite
500, Arlington, VA 22201. The cost of
obtaining this standard is not a
significant financial burden.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
—2012 Appendix D for Gas
Chromatograms for AHRI Standard
700–2014- Informative, 2012, AirConditioning, Heating, and
Refrigeration Institute. This appendix
provides figures for the gas
chromatograms used with Appendix
C to AHRI Standard 700–2015:
Analytical Procedures for AHRI
Standard 700–2015, Normative,
Specification for Fluorocarbon
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Refrigerants. An electronic copy of the
appendix is available at
www.ahrinet.org. It is also available
by mail at Air-Conditioning, Heating,
and Refrigeration Institute (AHRI),
2111 Wilson Boulevard, Suite 500,
Arlington, VA 22201. The cost of
obtaining this standard is not a
significant financial burden.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
—Federal Specification for
‘‘Fluorocarbon Refrigerants,’’ BB–F–
1421 B, dated March 5, 1982. This
section of this standard establishes a
method to determine the boiling point
and boiling point range of a
refrigerant. The standard is available
in the docket for this rulemaking.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
—GPA STD–2177, Analysis of Natural
Gas Liquid Mixtures Containing
Nitrogen and Carbon Dioxide by Gas
Chromatography, 2013, Gas
Processors Association. This standard
establishes methods for analyzing
demethanized liquid hydrocarbon
streams containing nitrogen/air and
carbon dioxide, and purity products
such as ethane/propane mix that fall
within compositional ranges
indicated in the standard. The
standard is available at
www.techstreet.com or by writing to
Techstreet, 6300 Interfirst Drive, Ann
Arbor, MI 48108. The cost of this
standard is $55 for an electronic copy
or $65 for a printed edition. The cost
of obtaining this standard is not a
significant financial burden.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
—ASTM Standard D1296–01–2012,
Standard Test Method for Odor of
Volatile Solvents and Diluents, July 1,
2012, ASTM International. This test
method covers a comparative
procedure for observing the
characteristic and residual odors of
volatile organic solvents and diluents
to determine their odor acceptability
in a solvent system. The standard is
available at www.astm.org or by
writing to ASTM, 100 Barr Harbor
Drive, P.O. Box C700, West
Conshohocken, PA 19428–2959. The
cost of this standard is $39. The cost
of obtaining this standard is not a
significant financial burden.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
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EPA is incorporating by reference
standards referenced in AHRI Standard
740–2016.
Specifically, these standards are:
—ANSI/ASHRAE Standard 63.2–1996
(RA 2010) Method of Testing LiquidLine Filter Drier Filtration Capability,
2010, American National Standards
Institute/American Society of Heating,
Refrigerating and Air-Conditioning
Engineers, Inc. The purpose of this
standard is to prescribe a laboratory
test method for evaluating the
filtration capability of filters and filter
driers used in liquid lines of
refrigeration systems. The standard is
available at www.ashrae.org or by
mail at AHSRAE, 1791 Tullie Circle
NE., Atlanta, GA 30329. The cost is
$39 for an electronic copy or printed
edition. The cost of obtaining this
standard is not a significant financial
burden. Therefore, EPA concludes
that the standard being incorporated
by reference is reasonably available.
—UL Standard 1963–2011, Refrigerant
Recovery/Recycling Equipment,
Fourth Edition, 2011, American
National Standards Institute/
Underwriters Laboratories, Inc. This
standard establishes safety
requirements for and methods to
evaluate refrigerant recovery and
refrigerant recovery/recycling
equipment. The standard is available
at https://www.comm-2000.com or by
writing to Comm 2000, 151 Eastern
Avenue, Bensenville, IL 60106. The
cost is $798 for an electronic copy and
$998 for hardcopy. UL also offers a
subscription service to the Standards
Certification Customer Library (SCCL)
that allows unlimited access to their
standards and related documents. The
cost of obtaining this standard is not
a significant financial burden for
equipment manufacturers. Therefore,
EPA concludes that the UL standard
being incorporated by reference is
reasonably available.
—AHRI Standard 110–2016, AirConditioning, Heating and
Refrigerating Equipment Nameplate
Voltages, 2016, Air-Conditioning,
Heating, and Refrigeration Institute.
This standard establishes voltage
rating requirements, equipment
performance requirements, and
conformance conditions for airconditioning, heating, and
refrigerating equipment. A free
electronic copy of this standard is
available at www.ahrinet.org. It is also
available by mail at Air-Conditioning,
Heating, and Refrigeration Institute
(AHRI), 2111 Wilson Boulevard, Suite
500, Arlington, VA 22201. The cost of
obtaining this standard is not a
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K. Congressional Review Act (CRA)
significant financial burden.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
—International Standard IEC 60038, IEC
Standard Voltages, Edition 7.0, 2009–
06, International Electrotechnical
Commission. This standard specifies
standard voltage values which are
intended to serve as preferential
values for the nominal voltage of
electrical supply systems, and as
reference values for equipment and
system design. The standard is
available at https://www.iec.ch or by
writing to Techstreet, 6300 Interfirst
Drive, Ann Arbor, MI 48108. The cost
of this standard is $50. The cost of
obtaining this standard is not a
significant financial burden.
Therefore, EPA concludes that the
standard being incorporated by
reference is reasonably available.
EPA is not incorporating by reference
California Air Resources Board, Test
Procedure for Leaks from Small
Containers of Automotive Refrigerant,
TP–503, as amended January 5, 2010.
Rather EPA is basing the content found
in appendix E on this standard. This
standard establishes methods for
assessing the leak rate from small
containers of refrigerant. A copy of this
standard is available in the docket and
www.arb.ca.gov/regact/2009/hfc09/
hfc09.htm.www.arb.ca.gov/regact/2009/
hfc09/hfc09.htm.
At this time EPA is not finalizing an
incorporation by reference for the
ASHRAE terminology found at https://
www.ashrae.org/resources—publi
cations/free-resources/ashrae-termino
logy.
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J. Executive Order 12898: Federal
Actions To Address Environmental
Justice in Minority Populations and
Low-Income Populations
EPA believes this action will not have
disproportionately high and adverse
human health or environmental effects
on minority or low-income populations
because it affects the level of
environmental protection equally for all
affected populations. This rule amends
the leak repair requirements for
appliances using ozone-depleting
substances, thereby protecting human
health and the environment from
increased amounts of UV radiation and
increased incidence of skin cancer. The
effects of exposure to UV radiation and
the estimated reduction in emissions of
ozone-depleting substances from this
rule is contained in Section II.D.1 of this
notice.
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This action is subject to the CRA, and
EPA will submit a rule report to each
House of the Congress and to the
Comptroller General of the United
States. This action is not a ‘‘major rule’’
as defined by 5 U.S.C. 804(2).
List of Subjects in 40 CFR Part 82
Environmental protection, Air
pollution control, Chemicals,
Incorporation by reference, Reporting
and recordkeeping requirements.
Dated: September 26, 2016.
Gina McCarthy,
Administrator.
For the reasons set forth in the
preamble, the Environmental Protection
Agency amends 40 CFR part 82 as
follows:
PART 82—PROTECTION OF
STRATOSPHERIC OZONE
1. The authority citation for part 82
continues to read as follows:
■
Authority: 42 U.S.C. 7414, 7601, 7671–
7671q.
■
2. Revise § 82.150 to read as follows:
§ 82.150
Purpose and scope.
(a) The purpose of this subpart is to
reduce emissions of class I and class II
refrigerants and their non-exempt
substitutes to the lowest achievable
level by maximizing the recapture and
recycling of such refrigerants during the
maintenance, service, repair, and
disposal of appliances and restricting
the sale of refrigerants consisting in
whole or in part of a class I or class II
ozone-depleting substance or their nonexempt substitutes in accordance with
Title VI of the Clean Air Act.
(b) This subpart applies to any person
maintaining, servicing, or repairing
appliances containing class I, class II or
non-exempt substitute refrigerants. This
subpart also applies to persons
disposing of such appliances (including
small appliances and motor vehicle air
conditioners), refrigerant reclaimers,
technician certifying programs,
appliance owners and operators,
manufacturers of appliances,
manufacturers of recovery and/or
recycling equipment, approved recovery
and/or recycling equipment testing
organizations, and persons buying,
selling, or offering to sell class I, class
II, or non-exempt substitute refrigerants.
■ 3. Amend § 82.152 by:
■ a. Adding definitions for ‘‘Batch,’’
‘‘Class I,’’ ‘‘Class II,’’ ‘‘Comfort cooling,’’
‘‘Component,’’ ‘‘Leak inspection,’’
‘‘Mothball,’’ ‘‘Normal operating
characteristics and conditions,’’
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‘‘Reclaim,’’ ‘‘Recover,’’ ‘‘Recycle,’’
‘‘Retire,’’ ‘‘Retrofit,’’ ‘‘Seasonal
variance,’’ ‘‘Self-sealing valve,’’ and
‘‘System receiver.’’
■ b. Revising the definitions for
‘‘Appliance,’’ ‘‘Apprentice,’’
‘‘Commercial refrigeration,’’ ‘‘Custombuilt,’’ ‘‘Disposal,’’ ‘‘Follow-up
verification test,’’ ‘‘Full charge,’’ ‘‘Highpressure appliance,’’ ‘‘Industrial process
refrigeration,’’ ‘‘Industrial process
shutdown,’’ ‘‘Initial verification test,’’
‘‘Leak rate,’’ ‘‘Low-loss fitting,’’ ‘‘Lowpressure appliance,’’ ‘‘Medium-pressure
appliance,’’ ‘‘MVAC-like appliance,’’
‘‘One-time expansion device,’’
‘‘Opening an appliance,’’ ‘‘Recovery
efficiency,’’ ‘‘Refrigerant,’’ ‘‘Selfcontained recovery equipment,’’ ‘‘Small
appliance,’’ ‘‘Substitute,’’ ‘‘Technician,’’
and ‘‘Very high-pressure appliance.’’
■ c. Removing the definitions for
‘‘Critical Component,’’ ‘‘Normal
operating characteristics or conditions,’’
‘‘Normally containing a quantity of
refrigerant,’’ ‘‘Reclaim refrigerant,’’
‘‘Recover refrigerant,’’ ‘‘Recycle
refrigerant,’’ ‘‘Suitable replacement
refrigerant,’’ ‘‘System mothballing,’’ and
‘‘Voluntary certification program.’’
The revisions and additions to read as
follows:
§ 82.152
Definitions.
As used in this subpart, the term:
Appliance means any device which
contains and uses a class I or class II
substance or substitute as a refrigerant
and which is used for household or
commercial purposes, including any air
conditioner, motor vehicle air
conditioner, refrigerator, chiller, or
freezer. For a system with multiple
circuits, each independent circuit is
considered a separate appliance.
Apprentice means any person who is
currently registered as an apprentice in
maintenance, service, repair, or disposal
of appliances with the U.S. Department
of Labor’s Office of Apprenticeship (or
a State Apprenticeship Council
recognized by the Office of
Apprenticeship). A person may only be
an apprentice for two years from the
date of first registering with that office.
*
*
*
*
*
Batch means a single bulk cylinder of
refrigerant after all reclamation has been
completed prior to packaging or
shipping to the market.
Class I refers to an ozone-depleting
substance that is listed in 40 CFR part
82 subpart A, appendix A.
Class II refers to an ozone-depleting
substance that is listed in 40 CFR part
82 subpart A, appendix B.
Comfort cooling means the airconditioning appliances used to provide
cooling in order to control heat and/or
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are not limited to, the use of soap
bubbles as appropriate, electronic or
ultrasonic leak detectors, pressure or
vacuum tests, fluorescent dye and black
light, infrared or near infrared tests, and
handheld gas detection devices.
Full charge means the amount of
refrigerant required for normal operating
characteristics and conditions of the
appliance as determined by using one or
a combination of the following four
methods:
(1) Use of the equipment
manufacturer’s determination of the full
charge;
(2) Use of appropriate calculations
based on component sizes, density of
refrigerant, volume of piping, and other
relevant considerations;
(3) Use of actual measurements of the
amount of refrigerant added to or
evacuated from the appliance, including
for seasonal variances; and/or
(4) Use of an established range based
on the best available data regarding the
normal operating characteristics and
conditions for the appliance, where the
midpoint of the range will serve as the
full charge.
High-pressure appliance means an
appliance that uses a refrigerant with a
liquid phase saturation pressure
between 170 psia and 355 psia at 104 °F.
Examples include but are not limited to
appliances using R–22, R–407A, R–
407C, R–410A, and R–502.
Industrial process refrigeration means
complex customized appliances that are
directly linked to the processes used in,
for example, the chemical,
pharmaceutical, petrochemical, and
manufacturing industries. This sector
also includes industrial ice machines,
appliances used directly in the
generation of electricity, and ice rinks.
Where one appliance is used for both
industrial process refrigeration and
other applications, it will be considered
industrial process refrigeration
equipment if 50 percent or more of its
operating capacity is used for industrial
process refrigeration.
Industrial process shutdown means
when an industrial process or facility
temporarily ceases to operate or
manufacture whatever is being
produced at that facility.
Initial verification test means those
leak tests that are conducted after the
repair is finished to verify that a leak or
leaks have been repaired before
refrigerant is added back to the
appliance.
Leak inspection means the
examination of an appliance to
determine the location of refrigerant
leaks. Potential methods include, but
are not limited to, ultrasonic tests, gasimaging cameras, bubble tests as
appropriate, or the use of a leak
detection device operated and
maintained according to manufacturer
guidelines. Methods that determine
whether the appliance is leaking
refrigerant but not the location of a leak,
such as standing pressure/vacuum
decay tests, sight glass checks, viewing
receiver levels, pressure checks, and
charging charts, must be used in
conjunction with methods that can
determine the location of a leak.
Leak rate means the rate at which an
appliance is losing refrigerant, measured
between refrigerant charges. The leak
rate is expressed in terms of the
percentage of the appliance’s full charge
that would be lost over a 12-month
period if the current rate of loss were to
continue over that period. The rate must
be calculated using one of the following
methods. The same method must be
used for all appliances subject to the
leak repair requirements located at an
operating facility.
(1) Annualizing Method. (i) Step 1.
Take the number of pounds of
refrigerant added to the appliance to
return it to a full charge, whether in one
addition or if multiple additions related
to same leak, and divide it by the
number of pounds of refrigerant the
appliance normally contains at full
charge;
(ii) Step 2. Take the shorter of the
number of days that have passed since
the last day refrigerant was added or 365
days and divide that number by 365
days;
(iii) Step 3. Take the number
calculated in Step 1 and divide it by the
number calculated in Step 2; and
(iv) Step 4. Multiply the number
calculated in Step 3 by 100 to calculate
a percentage. This method is
summarized in the following formula:
(2) Rolling Average Method. (i) Step 1.
Take the sum of the pounds of
refrigerant added to the appliance over
the previous 365-day period (or over the
period that has passed since the last
successful follow-up verification test
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humidity in occupied facilities
including but not limited to residential,
office, and commercial buildings.
Comfort cooling appliances include but
are not limited to chillers, commercial
split systems, and packaged roof-top
units.
Commercial refrigeration means the
refrigeration appliances used in the
retail food and cold storage warehouse
sectors. Retail food appliances include
the refrigeration equipment found in
supermarkets, convenience stores,
restaurants and other food service
establishments. Cold storage includes
the refrigeration equipment used to
store meat, produce, dairy products, and
other perishable goods.
Component means a part of the
refrigerant circuit within an appliance
including, but not limited to,
compressors, condensers, evaporators,
receivers, and all of its connections and
subassemblies.
Custom-built means that the
industrial process equipment or any of
its components cannot be purchased
and/or installed without being uniquely
designed, fabricated and/or assembled
to satisfy a specific set of industrial
process conditions.
Disposal means the process leading to
and including:
(1) The discharge, deposit, dumping
or placing of any discarded appliance
into or on any land or water;
(2) The disassembly of any appliance
for discharge, deposit, dumping or
placing of its discarded component
parts into or on any land or water;
(3) The vandalism of any appliance
such that the refrigerant is released into
the environment or would be released
into the environment if it had not been
recovered prior to the destructive
activity;
(4) The disassembly of any appliance
for reuse of its component parts; or
(5) The recycling of any appliance for
scrap.
Follow-up verification test means
those tests that involve checking the
repairs to an appliance after a successful
initial verification test and after the
appliance has returned to normal
operating characteristics and conditions
to verify that the repairs were
successful. Potential methods for
follow-up verification tests include, but
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
82351
(ii) Step 2. Divide the result of Step
1 by the pounds of refrigerant the
appliance normally contains at full
charge; and
(iii) Step 3. Multiply the result of Step
2 by 100 to obtain a percentage. This
method is summarized in the following
formula:
Low-loss fitting means any device that
is intended to establish a connection
between hoses, appliances, or recovery
and/or recycling machines and that is
designed to close automatically or to be
closed manually when disconnected,
minimizing the release of refrigerant
from hoses, appliances, and recovery
and/or recycling machines.
Low-pressure appliance means an
appliance that uses a refrigerant with a
liquid phase saturation pressure below
45 psia at 104 °F. Examples include but
are not limited to appliances using R–
11, R–123, R–113, and R–245fa.
*
*
*
*
*
Medium-pressure appliance means an
appliance that uses a refrigerant with a
liquid phase saturation pressure
between 45 psia and 170 psia at 104 °F.
Examples include but are not limited to
appliances using R–114, R–124, R–12,
R–134a, and R–500.
Mothball means to evacuate
refrigerant from an appliance, or the
affected isolated section or component
of an appliance, to at least atmospheric
pressure, and to temporarily shut down
that appliance.
*
*
*
*
*
MVAC-like appliance means a
mechanical vapor compression, opendrive compressor appliance with a full
charge of 20 pounds or less of
refrigerant used to cool the driver’s or
passenger’s compartment of off-road
vehicles or equipment. This includes,
but is not limited to, the airconditioning equipment found on
agricultural or construction vehicles.
This definition is not intended to cover
appliances using R–22 refrigerant.
Normal operating characteristics and
conditions means appliance operating
temperatures, pressures, fluid flows,
speeds, and other characteristics,
including full charge of the appliance,
that would be expected for a given
process load and ambient condition
during normal operation. Normal
operating characteristics and conditions
are marked by the absence of atypical
conditions affecting the operation of the
appliance.
One-time expansion device means an
appliance that relies on the release of its
refrigerant charge to the environment in
order to provide a cooling effect. These
are typically single releases but could
also include products that are designed
to release refrigerant to the environment
through multiple individual charges.
Opening an appliance means any
maintenance, service, repair, or disposal
of an appliance that would release any
refrigerant in the appliance to the
atmosphere. Connecting and
disconnecting hoses and gauges to
measure pressures, add refrigerant, or
recover refrigerant from the appliance
are not considered ‘‘opening an
appliance.’’
*
*
*
*
*
Reclaim means to reprocess recovered
refrigerant to all of the specifications in
appendix A of this subpart (based on
AHRI Standard 700–2016,
Specifications for Refrigerants) that are
applicable to that refrigerant and to
verify that the refrigerant meets these
specifications using the analytical
methodology prescribed in section 5 of
appendix A of this subpart.
Recover means to remove refrigerant
in any condition from an appliance and
to store it in an external container
without necessarily testing or
processing it in any way.
Recovery efficiency means the
percentage of refrigerant in an appliance
that is recovered by a piece of recovery
and/or recycling equipment.
Recycle, when referring to refrigerant,
means to extract refrigerant from an
appliance (except MVACs) and clean it
for reuse in equipment of the same
owner without meeting all of the
requirements for reclamation. In
general, recycled refrigerant is cleaned
using oil separation and single or
multiple passes through devices, such
as replaceable core filter-driers, which
reduce moisture, acidity, and particulate
matter.
Refrigerant means, for purposes of
this subpart, any substance, including
blends and mixtures, consisting in part
or whole of a class I or class II ozone-
depleting substance or substitute that is
used for heat transfer purposes and
provides a cooling effect.
Refrigerant circuit means the parts of
an appliance that are normally
connected to each other (or are
separated only by internal valves) and
are designed to contain refrigerant.
Retire, when referring to an appliance,
means the removal of the refrigerant and
the disassembly or impairment of the
refrigerant circuit such that the
appliance as a whole is rendered
unusable by any person in the future.
Retrofit means to convert an
appliance from one refrigerant to
another refrigerant. Retrofitting includes
the conversion of the appliance to
achieve system compatibility with the
new refrigerant and may include, but is
not limited to, changes in lubricants,
gaskets, filters, driers, valves, o-rings or
appliance components.
Seasonal variance means the removal
of refrigerant from an appliance due to
a change in ambient conditions caused
by a change in season, followed by the
subsequent addition of an amount that
is less than or equal to the amount of
refrigerant removed in the prior change
in season, where both the removal and
addition of refrigerant occurs within one
consecutive 12-month period.
Self-contained recovery equipment
means refrigerant recovery and/or
recycling equipment that is capable of
removing the refrigerant from an
appliance without the assistance of
components contained in the appliance.
Self-sealing valve means a valve
affixed to a container of refrigerant that
automatically seals when not dispensing
refrigerant and meets or exceeds
established performance criteria as
identified in § 82.154(c)(2).
Small appliance means any appliance
that is fully manufactured, charged, and
hermetically sealed in a factory with
five (5) pounds or less of refrigerant,
including, but not limited to,
refrigerators and freezers (designed for
home, commercial, or consumer use),
medical or industrial research
refrigeration equipment, room air
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showing all identified leaks in the
appliance were repaired, if that period
is less than one year);
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conditioners (including window air
conditioners, portable air conditioners,
and packaged terminal air heat pumps),
dehumidifiers, under-the-counter ice
makers, vending machines, and
drinking water coolers.
Substitute means any chemical or
product, whether existing or new, that
is used as a refrigerant to replace a class
I or II ozone-depleting substance.
Examples include, but are not limited to
hydrofluorocarbons, perfluorocarbons,
hydrofluoroolefins, hydrofluoroethers,
hydrocarbons, ammonia, carbon
dioxide, and blends thereof. As used in
this subpart, the term ‘‘exempt
substitutes’’ refers to certain substitutes
when used in certain end-uses that are
specified in § 82.154(a)(1) as exempt
from the venting prohibition and the
requirements of this subpart, and the
term ‘‘non-exempt substitutes’’ refers to
all other substitutes and end-uses not so
specified in § 82.154(a)(1).
*
*
*
*
*
System receiver means the isolated
portion of the appliance, or a specific
vessel within the appliance, that is used
to hold the refrigerant charge during the
servicing or repair of that appliance.
Technician means any person who in
the course of maintenance, service, or
repair of an appliance (except MVACs)
could be reasonably expected to violate
the integrity of the refrigerant circuit
and therefore release refrigerants into
the environment. Technician also means
any person who in the course of
disposal of an appliance (except small
appliances, MVACs, and MVAC-like
appliances) could be reasonably
expected to violate the integrity of the
refrigerant circuit and therefore release
refrigerants from the appliances into the
environment. Activities reasonably
expected to violate the integrity of the
refrigerant circuit include but are not
limited to: Attaching or detaching hoses
and gauges to and from the appliance;
adding or removing refrigerant; adding
or removing components; and cutting
the refrigerant line. Activities such as
painting the appliance, rewiring an
external electrical circuit, replacing
insulation on a length of pipe, or
tightening nuts and bolts are not
reasonably expected to violate the
integrity of the refrigerant circuit.
Activities conducted on appliances that
have been properly evacuated pursuant
to § 82.156 are not reasonably expected
to release refrigerants unless the activity
includes adding refrigerant to the
appliance. Technicians could include
but are not limited to installers,
contractor employees, in-house service
personnel, and owners and/or operators
of appliances.
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Very high-pressure appliance means
an appliance that uses a refrigerant with
a critical temperature below 104 °F or
with a liquid phase saturation pressure
above 355 psia at 104 °F. Examples
include but are not limited to
appliances using R–13, R–23, R–503, R–
508A, and R–508B.
■ 4. Revise § 82.154 to read as follows:
§ 82.154
Prohibitions.
(a) Venting Prohibition. (1) No person
maintaining, servicing, repairing, or
disposing of an appliance or industrial
process refrigeration may knowingly
vent or otherwise release into the
environment any refrigerant from such
appliances. Notwithstanding any other
provision of this subpart, the following
substitutes in the following end-uses are
exempt from this prohibition and from
the requirements of this subpart:
(i) Carbon dioxide in any application;
(ii) Nitrogen in any application;
(iii) Water in any application;
(iv) Ammonia in commercial or
industrial process refrigeration or in
absorption units;
(v) Chlorine in industrial process
refrigeration (processing of chlorine and
chlorine compounds);
(vi) Hydrocarbons in industrial
process refrigeration (processing of
hydrocarbons);
(vii) Ethane (R–170) in very low
temperature refrigeration equipment
and equipment for non-mechanical heat
transfer;
(viii) Propane (R–290) in retail food
refrigerators and freezers (stand-alone
units only); household refrigerators,
freezers, and combination refrigerators
and freezers; self-contained room air
conditioners for residential and light
commercial air-conditioning; heat
pumps; and vending machines;
(ix) Isobutane (R–600a) in retail food
refrigerators and freezers (stand-alone
units only); household refrigerators,
freezers, and combination refrigerators
and freezers; and vending machines;
(x) R–441A in retail food refrigerators
and freezers (stand-alone units only);
household refrigerators, freezers, and
combination refrigerators and freezers;
self-contained room air conditioners for
residential and light commercial airconditioning; heat pumps; and vending
machines.
(2) De minimis releases associated
with good faith attempts to recycle or
recover refrigerants are not subject to
this prohibition. Except for exempt
substitutes, refrigerant releases are de
minimis only if they occur when:
(i) The applicable practices in
§ 82.155, § 82.156, and § 82.157 are
observed, recovery and/or recycling
machines that meet the requirements in
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§ 82.158 are used whenever refrigerant
is removed from an appliance, the
technician certification provisions in
§ 82.161 are observed, and the
reclamation requirements in § 82.164
are observed; or
(ii) The requirements in subpart B of
this part are observed.
(3) The knowing release of a class I or
class II refrigerant or a non-exempt
substitute refrigerant after its recovery
from an appliance is a violation of the
venting prohibition.
(b) No person may maintain, service,
repair, or dispose of an appliance
containing a class I or class II refrigerant
or a non-exempt substitute refrigerant
without:
(1) Observing the applicable practices
in § 82.155, § 82.156, and § 82.157; and
(2) Using recovery and/or recycling
equipment that is certified for that type
of refrigerant and appliance under
§ 82.158.
(c) Sales Restriction. (1) No person
may sell or distribute, or offer for sale
or distribution, any substance that
consists in whole or in part of a class
I or class II substance or, starting on
January 1, 2018, any non-exempt
substitute for use as a refrigerant unless:
(i) The buyer has been certified as a
Type I, Type II, Type III, or Universal
technician under § 82.161;
(ii) The buyer employs at least one
technician who is certified as a Type I,
Type II, Type III, or Universal
technician under § 82.161 and provides
proof of such to the seller;
(iii) The buyer has been certified in
accordance with 40 CFR part 82, subpart
B and the refrigerant is acceptable for
use in MVACs under 40 CFR part 82,
subpart G;
(iv) The buyer employs at least one
person who is certified under 40 CFR
part 82, subpart B, and provides proof
of such to the seller and the refrigerant
is acceptable for use in MVACs under
40 CFR part 82, subpart G. Nothing in
this provision relieves persons of the
requirements of § 82.34(b) or § 82.42(b);
(v) The refrigerant is sold only for
eventual resale to persons certified
under § 82.161 or 40 CFR part 82,
subpart B or to appliance manufacturers
(e.g., sold by a manufacturer to a
wholesaler, sold by a technician to a
reclaimer);
(vi) The refrigerant is sold to an
appliance manufacturer;
(vii) The refrigerant is contained in an
appliance with a fully assembled
refrigerant circuit or an appliance
component;
(viii) The refrigerant is charged into
an appliance by a certified technician or
an apprentice during maintenance,
service, or repair of the appliance; or
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(ix) The non-exempt substitute
refrigerant is intended for use in an
MVAC and is sold in a container
designed to hold two pounds or less of
refrigerant, has a unique fitting, and has
a self-sealing valve.
(2) Self-sealing valve specifications.
This provision applies starting January
1, 2018, for all containers holding two
pounds or less of non-exempt substitute
refrigerant for use in an MVAC that are
manufactured or imported on or after
that date.
(i) Each container holding two pounds
or less of non-exempt substitute
refrigerant for use in an MVAC must be
equipped with a single self-sealing valve
that automatically closes and seals
when not dispensing refrigerant.
(ii) The leakage rate from each
container must not exceed 3.00 grams
per year when the self-sealing valve is
closed. This leakage rate applies to new,
full containers as well as containers that
may be partially full.
(iii) The leakage rate must be
determined using the standards
described in appendix E (incorporated
by reference, see § 82.168).
(iv) All testing to demonstrate
compliance with this paragraph must be
conducted by an independent test
laboratory in the United States. For
purposes of this requirement, an
independent test laboratory is one that
is not owned, operated, or affiliated
with the applicant certifying equipment
and/or products.
(3) Recordkeeping. (i) Persons who
sell or distribute, or offer to sell or
distribute, any class I or class II
refrigerant, or, starting on January 1,
2018, any non-exempt substitute
refrigerant must keep invoices that
indicate the name of the purchaser, the
date of sale, and the quantity of
refrigerant purchased unless they are
selling exempt substitutes (those
substitutes used in the end-uses
specified as exempt in paragraph (a)(1)
of this section) or small cans of MVAC
refrigerant in accordance with
paragraph (c)(1)(ix) of this section. In
instances where the buyer employs a
person certified under § 82.161 or 40
CFR part 82, subpart B, the seller must
keep the documentation provided by the
buyer to demonstrate such employment.
All records must be kept for three years.
(ii) Electronic or paper copies of all
records described in appendix E must
be maintained by manufacturers of
containers holding two pounds or less
of non-exempt substitute refrigerant for
use in an MVAC to verify self-sealing
valves meet the requirements specified
in paragraph (c)(2) of this section. All
records must be kept for three years
after each purchase.
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(d) Sale of Used Refrigerant. No
person may sell or distribute, or offer for
sale or distribution, for use as a
refrigerant any class I or class II
substance or non-exempt substitute
consisting wholly or in part of used
refrigerant unless the refrigerant:
(1) Has been reclaimed by a person
who has been certified as a reclaimer
under § 82.164;
(2) was used only in an MVAC or
MVAC-like appliance and is to be used
only in an MVAC or MVAC-like
appliance and recycled in accordance
with 40 CFR part 82, subpart B;
(3) is contained in an appliance that
is sold or offered for sale together with
a fully assembled refrigerant circuit;
(4) is being transferred between or
among a parent company and one or
more of its subsidiaries, or between or
among subsidiaries having the same
parent company; or
(5) is being transferred between or
among a Federal agency or department
and a facility or facilities owned by the
same Federal agency or department.
(e) Manufacture and Sale of
Appliances. (1) No person may sell or
distribute, or offer for sale or
distribution, any appliance (except
small appliances and appliances
containing only refrigerants that have
been exempted under paragraph (a)(1) of
this section) unless it is equipped with
a servicing aperture to facilitate the
removal of refrigerant at servicing and
disposal.
(2) No person may sell or distribute,
or offer for sale or distribution, any
small appliance (except appliances
containing only refrigerants that have
been exempted under paragraph (a)(1) of
this section) unless it is equipped with
a process stub to facilitate the removal
of refrigerant at servicing and disposal.
(f) One-time expansion devices. No
person may manufacture or import a
one-time expansion device unless the
only refrigerants it contains have been
exempted under paragraph (a)(1) of this
section.
(g) Rules stayed for consideration.
Notwithstanding any other provisions of
this subpart, the effectiveness of 40 CFR
82.154(c), only as it applies to
refrigerant contained in appliances
without fully assembled refrigerant
circuits, is stayed from April 27, 1995,
until EPA takes final action on its
reconsideration of these provisions. EPA
will publish any such final action in the
Federal Register.
■ 5. Add § 82.155 to subpart F to read
as follows:
§ 82.155
Safe disposal of appliances.
Until January 1, 2018, this section
applies only to disposal of appliances
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containing class I and class II
refrigerants. Starting on January 1, 2018,
this section applies to disposal of
appliances containing any class I or
class II refrigerant or any non-exempt
substitute refrigerant.
(a) Persons recovering refrigerant from
a small appliance, MVAC, or MVAC-like
appliance for purposes of disposal of
these appliances must evacuate
refrigerant to the levels in § 82.156(b)
through (d) using recovery equipment
that meets the standards in § 82.158(e)
through (g), or 40 CFR part 82 subpart
B, as applicable.
(b) The final processor—i.e., persons
who take the final step in the disposal
process (including but not limited to
scrap recyclers and landfill operators) of
a small appliance, MVAC, or MVAC-like
appliance—must either:
(1) Recover any remaining refrigerant
from the appliance in accordance with
paragraph (a) of this section; or
(2) Verify using a signed statement or
a contract that all refrigerant that had
not leaked previously has been
recovered from the appliance or
shipment of appliances in accordance
with paragraph (a) of this section. If
using a signed statement, it must
include the name and address of the
person who recovered the refrigerant
and the date the refrigerant was
recovered. If using a signed contract
between the supplier and the final
processor, it must either state that the
supplier will recover any remaining
refrigerant from the appliance or
shipment of appliances in accordance
with paragraph (a) of this section prior
to delivery or verify that the refrigerant
had been properly recovered prior to
receipt by the supplier.
(i) It is a violation of this subpart to
accept a signed statement or contract if
the person receiving the statement or
contract knew or had reason to know
that the signed statement or contract is
false.
(ii) The final processor must notify
suppliers of appliances that refrigerant
must be properly recovered in
accordance with paragraph (a) of this
section before delivery of the items to
the facility. The form of this notification
may be signs, letters to suppliers, or
other equivalent means.
(iii) If all the refrigerant has leaked
out of the appliance, the final processor
must obtain a signed statement that all
the refrigerant in the appliance had
leaked out prior to delivery to the final
processor and recovery is not possible.
‘‘Leaked out’’ in this context means
those situations in which the refrigerant
has escaped because of system failures,
accidents, or other unavoidable
occurrences not caused by a person’s
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negligence or deliberate acts such as
cutting refrigerant lines.
(c) Recordkeeping. The final processor
of a small appliance, MVAC, or MVAClike appliance must keep a copy of all
the signed statements or contracts
obtained under paragraph (b)(2) of this
section on site, in hard copy or in
electronic format, for three years.
■ 6. Amend § 82.156 by:
■ (a) Revising the section heading;
■ (b) Adding an introductory paragraph;
■ (c) Revising paragraphs (a) through
(h); and
■ (d) Adding paragraph (i) introductory
text; and
■ (e) Adding paragraph (j).
The revisions and additions to read as
follows:
§ 82.156 Proper evacuation of refrigerant
from appliances.
Until January 1, 2018, this section
applies only to evacuation of refrigerant
from appliances containing class I or
class II refrigerants. Starting on January
1, 2018, this section applies to
evacuation of refrigerant from
appliances containing any class I or
class II refrigerant or any non-exempt
substitute refrigerant, excluding
paragraph (i) of this section which
applies only to appliances containing
class I or class II refrigerants until
January 1, 2019. Starting January 1,
2019, the provisions in § 82.157 apply
in lieu of paragraph (i) of this section.
(a) Appliances (except small
appliances, MVACs, and MVAC-like
appliances). Before opening appliances
(except small appliances, MVACs, and
MVAC-like appliances) or disposing of
such appliances, technicians must
evacuate the refrigerant, including all
the liquid refrigerant, to the levels in
Table 1 using a recovery and/or
recycling machine certified pursuant to
§ 82.158 unless the situations in
paragraphs (a)(1) or (2) of this section
apply. Technicians may evacuate either
the entire appliance or the part to be
serviced, if the refrigerant in the part
can be isolated to a system receiver. A
technician must verify that the
applicable level of evacuation has been
reached in the appliance or the part
before it is opened.
(1) If evacuation of the appliance to
the atmosphere is not to be performed
after completion of the maintenance,
service, or repair, and if the
maintenance, service, or repair is not
major as defined at § 82.152, the
appliance must:
(i) Be evacuated to a pressure no
higher than 0 psig before it is opened if
it is a medium-, high- or very highpressure appliance;
(ii) Be pressurized to a pressure no
higher than 0 psig before it is opened if
it is a low-pressure appliance. Persons
must cover openings when isolation is
not possible. Persons pressurizing lowpressure appliances that use refrigerants
with boiling points at or below 85
degrees Fahrenheit at 29.9 inches of
mercury (standard atmospheric
pressure), must not use methods such as
nitrogen that require subsequent
purging. Persons pressurizing lowpressure appliances that use refrigerants
with boiling points above 85 degrees
Fahrenheit at 29.9 inches of mercury,
must use heat to raise the internal
pressure of the appliance as much as
possible, but may use nitrogen to raise
the internal pressure of the appliance
from the level attainable through use of
heat to atmospheric pressure; or
(iii) For the purposes of oil changes,
be evacuated or pressurized to a
pressure no higher than 5 psig, before it
is opened; or drain the oil into a system
receiver to be evacuated or pressurized
to a pressure no higher than 5 psig.
(2) If leaks in the appliance make
evacuation to the levels in Table 1
unattainable or would substantially
contaminate the refrigerant being
recovered, persons opening or disposing
of the appliance must:
(i) Isolate leaking from non-leaking
components wherever possible;
(ii) Evacuate non-leaking components
to be opened or disposed of to the levels
specified in Table 1; and
(iii) Evacuate leaking components to
be opened or disposed of to the lowest
level that can be attained without
substantially contaminating the
refrigerant. This level may not exceed 0
psig.
(3) Recordkeeping. As of January 1,
2018, technicians evacuating refrigerant
from appliances with a full charge of
more than 5 and less than 50 pounds of
refrigerant for purposes of disposal of
that appliance must keep records
documenting the following for three
years:
(i) The company name, location of the
appliance, date of recovery, and type of
refrigerant recovered for each appliance;
(ii) The total quantity of refrigerant,
by type, recovered from all disposed
appliances in each calendar month; and
(iii) The quantity of refrigerant, by
type, transferred for reclamation and/or
destruction, the person to whom it was
transferred, and the date of transfer.
TABLE 1—REQUIRED LEVELS OF EVACUATION FOR APPLIANCES
[Except for small appliances, MVACs, and MVAC-like appliances]
Inches of Hg vacuum
(relative to standard atmospheric pressure of
29.9 inches Hg)
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Type of appliance
Using recovery and/or
recycling equipment
manufactured or
imported before
November 15, 1993
Using recovery and/or
recycling equipment
manufactured or
imported on or after
November 15, 1993
Very high-pressure appliance ..........................................................................................................
High-pressure appliance, or isolated component of such appliance, with a full charge of less
than 200 pounds of refrigerant.
High-pressure appliance, or isolated component of such appliance, with a full charge of 200
pounds or more of refrigerant.
Medium-pressure appliance, or isolated component of such appliance, with a full charge of less
than 200 pounds of refrigerant.
Medium-pressure appliance, or isolated component of such appliance, with a full charge of 200
pounds or more of refrigerant.
Low-pressure appliance ...................................................................................................................
0 ................................
0 ................................
0.
0.
4 ................................
10.
4 ................................
10.
4 ................................
15.
25 mm Hg absolute ...
25 mm Hg absolute.
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(b) Small appliances. Before opening
a small appliance or when disposing of
a small appliance, persons must recover
refrigerant, using a recovery and/or
recycling machine certified pursuant to
§ 82.158, according to the following
conditions:
(1) When using recovery equipment
manufactured before November 15,
1993, recover 80 percent of the
refrigerant in the small appliance; or
(2) When using recovery equipment
manufactured on or after November 15,
1993, recover 90 percent of the
refrigerant in the appliance when the
compressor in the appliance is
functioning, or 80 percent of the
refrigerant in the appliance when the
compressor in the appliance is not
functioning; or
(3) Evacuate the appliance to four
inches of mercury vacuum.
(c) MVAC-like appliances. Persons
may only open MVAC-like appliances
while properly using, as defined at
§ 82.32(e), recovery and/or recycling
equipment certified pursuant to
§ 82.158(f) or § 82.36, as applicable. All
persons recovering refrigerant from
MVAC-like appliances for purposes of
disposal of these appliances must
evacuate the appliance in accordance
with 40 CFR part 82, subpart B or
reduce the system pressure to or below
102 mm of mercury vacuum.
(d) MVACs. All persons recovering
refrigerant from MVACs for purposes of
disposal of these appliances must
evacuate the appliance in accordance
with 40 CFR part 82, subpart B or
reduce the system pressure to or below
102 mm of mercury vacuum.
(e) System-dependent equipment may
not be used with appliances with a full
charge of more than 15 pounds of
refrigerant, unless the system-dependent
equipment is permanently attached to
the appliance as a pump-out unit.
(f) Persons who maintain, service,
repair, or dispose of only appliances
that they own and that contain pumpout units are exempt from the
requirement to use certified, selfcontained recovery and/or recycling
equipment.
(g) All recovery and/or recycling
equipment must be used in accordance
with the manufacturer’s directions
unless such directions conflict with the
requirements of this subpart.
(h) Refrigerant may be returned to the
appliance from which it is recovered or
to another appliance owned by the same
person without being recycled or
reclaimed, unless the appliance is an
MVAC or MVAC-like appliance.
(i) The provisions in this paragraph (i)
apply to owners and operators of
appliances containing 50 or more
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pounds of class I and class II refrigerants
only until January 1, 2019. The
definitions in paragraph (j) of this
section apply for purposes of this
paragraph (i) in lieu of the definitions in
§ 82.152.
*
*
*
*
*
(j) Definitions for the leak repair
provisions in 82.156(i). These
definitions are not applicable to any
other portion of subpart F other than
82.156(i). Along with paragraph (i) of
this section, the definitions in this
section apply only until January 1, 2019.
Appliance means, for the purposes of
paragraph (i) of this section, any device
which contains and uses a refrigerant
and which is used for household or
commercial purposes, including any air
conditioner, refrigerator, chiller, or
freezer.
Commercial refrigeration means, for
the purposes of paragraph (i) of this
section, the refrigeration appliances
utilized in the retail food and cold
storage warehouse sectors. Retail food
includes the refrigeration equipment
found in supermarkets, convenience
stores, restaurants and other food
service establishments. Cold storage
includes the equipment used to store
meat, produce, dairy products, and
other perishable goods. All of the
equipment contains large refrigerant
charges, typically over 75 pounds.
Critical component means, for the
purposes of paragraph (i) of this section,
a component without which industrial
process refrigeration equipment will not
function, will be unsafe in its intended
environment, and/or will be subject to
failures that would cause the industrial
process served by the refrigeration
appliance to be unsafe.
Custom-built means, for the purposes
of paragraph (i) of this section, that the
equipment or any of its critical
components cannot be purchased and/
or installed without being uniquely
designed, fabricated and/or assembled
to satisfy a specific set of industrial
process conditions.
Follow-up verification test means, for
the purposes of paragraph (i) of this
section, those tests that involve
checking the repairs within 30 days of
the appliance’s returning to normal
operating characteristics and conditions.
Follow-up verification tests for
appliances from which the refrigerant
charge has been evacuated means a test
conducted after the appliance or portion
of the appliance has resumed operation
at normal operating characteristics and
conditions of temperature and pressure,
except in cases where sound
professional judgment dictates that
these tests will be more meaningful if
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performed prior to the return to normal
operating characteristics and conditions.
A follow-up verification test with
respect to repairs conducted without
evacuation of the refrigerant charge
means a reverification test conducted
after the initial verification test and
usually within 30 days of normal
operating conditions. Where an
appliance is not evacuated, it is only
necessary to conclude any required
changes in pressure, temperature or
other conditions to return the appliance
to normal operating characteristics and
conditions.
Full charge means, for the purposes of
paragraph (i) of this section, the amount
of refrigerant required for normal
operating characteristics and conditions
of the appliance as determined by using
one or a combination of the following
four methods:
(i) Use the equipment manufacturer’s
determination of the correct full charge
for the equipment;
(ii) Determine the full charge by
making appropriate calculations based
on component sizes, density of
refrigerant, volume of piping, and other
relevant considerations;
(iii) Use actual measurements of the
amount of refrigerant added or
evacuated from the appliance; and/or
(iv) Use an established range based on
the best available data regarding the
normal operating characteristics and
conditions for the appliance, where the
midpoint of the range will serve as the
full charge, and where records are
maintained in accordance with
§ 82.166(q).
Industrial process refrigeration
means, for the purposes of paragraph (i)
of this section, complex customized
appliances used in the chemical,
pharmaceutical, petrochemical and
manufacturing industries. These
appliances are directly linked to the
industrial process. This sector also
includes industrial ice machines,
appliances used directly in the
generation of electricity, and ice rinks.
Where one appliance is used for both
industrial process refrigeration and
other applications, it will be considered
industrial process refrigeration
equipment if 50 percent or more of its
operating capacity is used for industrial
process refrigeration.
Industrial process shutdown means,
for the purposes of paragraph (i) of this
section, that an industrial process or
facility temporarily ceases to operate or
manufacture whatever is being
produced at that facility.
Initial verification test means, for the
purposes of paragraph (i) of this section,
those leak tests that are conducted as
soon as practicable after the repair is
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Leak rate means, for the purposes of
paragraph (i) of this section, the rate at
which an appliance is losing refrigerant,
measured between refrigerant charges.
The leak rate is expressed in terms of
the percentage of the appliance’s full
charge that would be lost over a 12month period if the current rate of loss
were to continue over that period. The
rate is calculated using only one of the
following methods for all appliances
located at an operating facility.
(i) Method 1. (A) Step 1. Take the
number of pounds of refrigerant added
to the appliance to return it to a full
charge and divide it by the number of
pounds of refrigerant the appliance
normally contains at full charge;
(B) Step 2. Take the shorter of the
number of days that have passed since
the last day refrigerant was added or 365
days and divide that number by 365
days;
(C) Step 3. Take the number
calculated in Step 1. and divide it by the
number calculated in Step 2.; and
(D) Step 4. Multiply the number
calculated in Step 3. by 100 to calculate
a percentage. This method is
summarized in the following formula:
(ii) Method 2. (A) Step 1. Take the
sum of the quantity of refrigerant added
to the appliance over the previous 365day period (or over the period that has
passed since leaks in the appliance were
last repaired, if that period is less than
one year),
(B) Step 2. Divide the result of Step
1. by the quantity (e.g., pounds) of
refrigerant the appliance normally
contains at full charge, and
(C) Step 3. Multiply the result of Step
2. by 100 to obtain a percentage. This
method is summarized in the following
formula:
Normal operating characteristics or
conditions means, for the purposes of
paragraph (i) of this section,
temperatures, pressures, fluid flows,
speeds and other characteristics that
would normally be expected for a given
process load and ambient condition
during operation. Normal operating
characteristics and conditions are
marked by the absence of atypical
conditions affecting the operation of the
refrigeration appliance.
Normally containing a quantity of
refrigerant means, for the purposes of
paragraph (i) of this section, containing
the quantity of refrigerant within the
appliance or appliance component
when the appliance is operating with a
full charge of refrigerant.
Refrigerant means, for the purposes of
paragraph (i) of this section, any
substance consisting in part or whole of
a class I or class II ozone-depleting
substance that is used for heat transfer
purposes and provides a cooling effect.
Substitute means, for the purposes of
paragraph (i) of this section, any
chemical or product, whether existing
or new, that is used by any person as an
EPA approved replacement for a class I
or II ozone-depleting substance in a
given refrigeration or air-conditioning
end-use.
Suitable replacement refrigerant
means, for the purposes of paragraph (i)
of this section, a refrigerant that is
acceptable under section 612(c) of the
Clean Air Act Amendments of 1990 and
all regulations promulgated under that
section, compatible with other materials
with which it may come into contact,
and able to achieve the temperatures
required for the affected industrial
process in a technically feasible manner.
System mothballing means, for the
purposes of paragraph (i) of this section,
the intentional shutting down of a
refrigeration appliance undertaken for
an extended period of time by the
owners or operators of that facility,
where the refrigerant has been
evacuated from the appliance or the
affected isolated section of the
appliance, at least to atmospheric
pressure.
§ 82.157
repair.
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(a) Applicability. This section applies
as of January 1, 2019. This section
applies only to appliances with a full
charge of 50 or more pounds of any
class I or class II refrigerant or any nonexempt substitute refrigerant. Unless
otherwise specified, the requirements of
this section apply to the owner or
operator of the appliance.
(b) Leak Rate Calculation. Persons
adding or removing refrigerant from an
appliance must, upon conclusion of that
service, provide the owner or operator
with documentation that meets the
applicable requirements of paragraph
(l)(2) of this section. The owner or
operator must calculate the leak rate
every time refrigerant is added to an
appliance unless the addition is made
immediately following a retrofit,
installation of a new appliance, or
qualifies as a seasonal variance.
(c) Requirement to Address Leaks
through Appliance Repair, or
Retrofitting or Retiring an Appliance. (1)
Owners or operators must repair
appliances with a leak rate over the
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ER18NO16.077
7. Add § 82.157 to Subpart F to read
as follows:
■
Appliance maintenance and leak
ER18NO16.076
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completed. An initial verification test,
with regard to the leak repairs that
require the evacuation of the appliance
or portion of the appliance, means a test
conducted prior to the replacement of
the full refrigerant charge and before the
appliance or portion of the appliance
has reached operation at normal
operating characteristics and conditions
of temperature and pressure. An initial
verification test with regard to repairs
conducted without the evacuation of the
refrigerant charge means a test
conducted as soon as practicable after
the conclusion of the repair work.
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applicable leak rate in this paragraph in
accordance with paragraphs (d) through
(f) of this section unless the owner or
operator elects to retrofit or retire the
appliance in compliance with
paragraphs (h) and (i) of this section. If
the owner or operator elects to repair
leaks, but fails to bring the leak rate
below the applicable leak rate, the
owner or operator must create and
implement a retrofit or retirement plan
in accordance with paragraphs (h) and
(i) of this section.
(2) Leak Rates:
(i) 20 percent leak rate for commercial
refrigeration equipment;
(ii) 30 percent leak rate for industrial
process refrigeration equipment; and
(iii) 10 percent leak rate for comfort
cooling appliances or other appliances
with a full charge of 50 or more pounds
of refrigerant not covered by (c)(2)(i) or
(ii) of this section.
(d) Appliance Repair. Owners or
operators must identify and repair leaks
in accordance with this paragraph
within 30 days (or 120 days if an
industrial process shutdown is required)
of when refrigerant is added to an
appliance exceeding the applicable leak
rate in paragraph (c) of this section.
(1) A certified technician must
conduct a leak inspection, as described
in paragraph (g) of this section, to
identify the location of leaks.
(2) Leaks must be repaired such that
the leak rate is brought below the
applicable leak rate. This must be
confirmed by the leak rate calculation
performed upon the next refrigerant
addition. The leaks will be presumed to
be repaired if there is no further
refrigerant addition for 12 months after
the repair or if the leak inspections
required under paragraph (g) do not find
any leaks in the appliance. Repair of
leaks must be documented by both an
initial and a follow-up verification test
or tests.
(3) The time frames in paragraphs (d)
through(f) of this section are temporarily
suspended when an appliance is
mothballed. The time will resume on
the day additional refrigerant is added
to the appliance (or component of an
appliance if the leaking component was
isolated).
(e) Verification tests. The owner or
operator must conduct both initial and
follow-up verification tests on each leak
that was repaired under paragraph (d) of
this section.
(1) Initial verification test. Unless
granted additional time, an initial
verification test must be performed
within 30 days (or 120 days if an
industrial process shutdown is required)
of an appliance exceeding the
applicable leak rate in paragraph (c) of
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this section. An initial verification test
must demonstrate that leaks where a
repair attempt was made are repaired.
(i) For repairs that can be completed
without the need to open or evacuate
the appliance, the test must be
performed after the conclusion of the
repair work and before any additional
refrigerant is added to the appliance.
(ii) For repairs that require the
evacuation of the appliance or portion
of the appliance, the test must be
performed before adding any refrigerant
to the appliance.
(iii) If the initial verification test
indicates that the repairs have not been
successful, the owner or operator may
conduct as many additional repairs and
initial verification tests as needed
within the applicable time period.
(2) Follow-up verification test. A
follow-up verification test must be
performed within 10 days of the
successful initial verification test or 10
days of the appliance reaching normal
operating characteristics and conditions
(if the appliance or isolated component
was evacuated for the repair(s)). Where
it is unsafe to be present or otherwise
impossible to conduct a follow-up
verification test when the system is
operating at normal operating
characteristics and conditions, the
verification test must, where
practicable, be conducted prior to the
system returning to normal operating
characteristics and conditions.
(i) A follow-up verification test must
demonstrate that leaks where a repair
attempt was made are repaired. If the
follow-up verification test indicates that
the repairs have not been successful, the
owner or operator may conduct as many
additional repairs and verification tests
as needed to bring the appliance below
the leak rate within the applicable time
period and to verify the repairs.
(f) Extensions to the appliance repair
deadlines. Owners or operators are
permitted more than 30 days (or 120
days if an industrial process shutdown
is required) to comply with paragraphs
(d) and (e) of this section if they meet
the requirements of (f)(1) through (4) of
this section or the appliance is
mothballed. The request will be
considered approved unless EPA
notifies the owners or operators
otherwise.
(1) One or more of the following
conditions must apply:
(i) The appliance is located in an area
subject to radiological contamination or
shutting down the appliance will
directly lead to radiological
contamination. Additional time is
permitted to the extent needed to
conduct and finish repairs in a safe
working environment.
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(ii) Requirements of other applicable
Federal, state, or local regulations make
a repair within 30 days (or 120 days if
an industrial process shutdown is
required) impossible. Additional time is
permitted to the extent needed to
comply with the pertinent regulations.
(iii) Components that must be
replaced as part of the repair are not
available within 30 days (or 120 days if
an industrial process shutdown is
required). Additional time is permitted
up to 30 days after receiving delivery of
the necessary components, not to
exceed 180 days (or 270 days if an
industrial process shutdown is required)
from the date the appliance exceeded
the applicable leak rate.
(2) Repairs to leaks that the technician
has identified as significantly
contributing to the exceedance of the
leak rate and that do not require
additional time must be completed and
verified within the initial 30 day repair
period (or 120 day repair period if an
industrial process shutdown is
required);
(3) The owner or operator must
document all repair efforts and the
reason for the inability to make the
repair within the initial 30 day repair
period (or 120 day repair period if an
industrial process shutdown is
required); and
(4) The owner or operator must
request an extension from EPA at the
address specified in paragraph (m) of
this section within 30 days (or 120 days
if an industrial process shutdown is
required) of the appliance exceeding the
applicable leak rate in paragraph (c) of
this section. Extension requests must
include: Identification and address of
the facility; the name of the owner or
operator of the appliance; the leak rate;
the method used to determine the leak
rate and full charge; the date the
appliance exceeded the applicable leak
rate; the location of leak(s) to the extent
determined to date; any repair work that
has been performed thus far, including
the date that work was completed; the
reasons why more than 30 days (or 120
days if an industrial process shutdown
is required) are needed to complete the
repair; and an estimate of when the
work will be completed. If the estimated
completion date is to be extended, a
new estimated date of completion and
documentation of the reason for that
change must be submitted to EPA
within 30 days of identifying that the
completion date must be extended. The
owner or operator must keep a dated
copy of this submission.
(g) Leak Inspections. (1) The owner or
operator must conduct a leak inspection
in accordance with the following
schedule on any appliance exceeding
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the applicable leak rate in paragraph
(c)(2) of this section.
(i) For commercial refrigeration and
industrial process refrigeration
appliances with a full charge of 500 or
more pounds, leak inspections must be
conducted once every three months
until the owner or operator can
demonstrate through the leak rate
calculations required under paragraph
(b) of this section that the appliance has
not leaked in excess of the applicable
leak rate for four quarters in a row.
(ii) For commercial refrigeration and
industrial process refrigeration
appliances with a full charge of 50 or
more pounds but less than 500 pounds,
leak inspections must be conducted
once per calendar year until the owner
or operator can demonstrate through the
leak rate calculations required under
paragraph (b) of this section that the
appliance has not leaked in excess of
the applicable leak rate for one year.
(iii) For comfort cooling appliances
and other appliances not covered by
paragraphs (g)(1)(i) and (ii) of this
section, leak inspections must be
conducted once per calendar year until
the owner or operator can demonstrate
through the leak rate calculations
required under paragraph (b) of this
section that the appliance has not
leaked in excess of the applicable leak
rate for one year.
(2) Leak inspections must be
conducted by a certified technician
using method(s) determined by the
technician to be appropriate for that
appliance.
(3) All visible and accessible
components of an appliance must be
inspected, with the following
exceptions:
(i) Where components are insulated,
under ice that forms on the outside of
equipment, underground, behind walls,
or are otherwise inaccessible;
(ii) Where personnel must be elevated
more than two meters above a support
surface; or
(iii) Where components are unsafe to
inspect, as determined by site
personnel.
(4) Quarterly or annual leak
inspections are not required on
appliances, or portions of appliances,
continuously monitored by an
automatic leak detection system that is
audited or calibrated annually. An
automatic leak detection system may
directly detect refrigerant in air, monitor
its surrounding in a manner other than
detecting refrigerant concentrations in
air, or monitor conditions of the
appliance.
(i) For systems that directly detect the
presence of a refrigerant in air, the
system must:
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(A) Only be used to monitor
components located inside an enclosed
building or structure;
(B) Have sensors or intakes placed so
that they will continuously monitor the
refrigerant concentrations in air in
proximity to the compressor,
evaporator, condenser, and other areas
with a high potential for a refrigerant
leak;
(C) Accurately detect a concentration
level of 10 parts per million of vapor of
the specific refrigerant or refrigerants
used in the refrigeration appliance(s);
and
(D) Alert the owner or operator when
a refrigerant concentration of 100 parts
per million of vapor of the specific
refrigerant or refrigerants used in the
refrigeration appliance(s) is reached.
(ii) For a system that monitors its
surrounding in a manner other than
detecting refrigerant concentrations in
air or monitor conditions of the
appliance, the system must
automatically alert the owner or
operator when measurements indicate a
loss of 50 pounds of refrigerant or 10
percent of the full charge, whichever is
less.
(iii) When automatic leak detection
equipment is only being used to monitor
portions of an appliance, the remainder
of the appliance continues to be subject
to any applicable leak inspection
requirements.
(h) Retrofit or retirement plans. (1)
The owner or operator must create a
retrofit or retirement plan within 30
days of:
(i) an appliance leaking above the
applicable leak rate in paragraph (c) of
this section if the owner or operator
intends to retrofit or retire rather than
repair the leak;
(ii) an appliance leaking above the
applicable leak rate in paragraph (c) of
this section if the owner or operator fails
to take any action to identify or repair
the leak; or
(iii) an appliance continues to leak
above the applicable leak rate after
having conducted the required repairs
and verification tests under paragraphs
(d) and (e) of this section.
(2) A retrofit or retirement plan must,
at a minimum, contain the following
information:
(i) Identification and location of the
appliance;
(ii) Type and full charge of the
refrigerant used in the appliance;
(iii) Type and full charge of the
refrigerant to which the appliance will
be converted, if retrofitted;
(iv) Itemized procedure for converting
the appliance to a different refrigerant,
including changes required for
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compatibility with the new substitute, if
retrofitted;
(v) Plan for the disposition of
recovered refrigerant;
(vi) Plan for the disposition of the
appliance, if retired; and
(vii) A schedule, not to exceed oneyear, for completion of the appliance
retrofit or retirement.
(3) The retrofit or retirement plan
must be signed by an authorized
company official, dated, accessible at
the site of the appliance in paper copy
or electronic format, and available for
EPA inspection upon request.
(4) All identified leaks must be
repaired as part of any retrofit under
such a plan.
(5)(i) Unless granted additional time,
all work performed in accordance with
the plan must be finished within one
year of the plan’s date (not to exceed 13
months from when the plan was
required in paragraph (h)(1) of this
section).
(ii) The owner or operator may
request that EPA relieve it of the
obligation to retrofit or retire an
appliance if the owner or operator can
establish within 180 days of the plan’s
date that the appliance no longer
exceeds the applicable leak rate and if
the owner or operator agrees in writing
to repair all identified leaks within one
year of the plan’s date consistent with
paragraph (h)(4) and (h)(5)(i) of this
section. The owner or operator must
submit to EPA the retrofit or retirement
plan as well as the following
information: The date that the
requirement to develop a retrofit or
retirement plan was triggered; the leak
rate; the method used to determine the
leak rate and full charge; the location of
the leak(s) identified in the leak
inspection; a description of repair work
that has been completed; a description
of repair work that has not been
completed; a description of why the
repair was not conducted within the
time frames required under paragraphs
(d) and (f) of this section; and a
statement signed by an authorized
official that all identified leaks will be
repaired and an estimate of when those
repairs will be completed (not to exceed
one year from date of the plan). The
request will be considered approved
unless EPA notifies the owners or
operators within 60 days of receipt of
the request that it is not approved.
(i) Extensions to the one-year retrofit
or retirement schedule. Owners or
operators may request more than one
year to comply with paragraph (h) of
this section if they meet the
requirements of this paragraph. The
request will be considered approved
unless EPA notifies the owners or
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operators within 60 days of receipt of
the request that it is not approved. The
request must be submitted to EPA at the
address specified in § 82.157(m) within
seven months of discovering the
appliance exceeded the applicable leak
rate. The request must include the
identification of the appliance; name of
the owner or operator; the leak rate; the
method used to determine the leak rate
and full charge; the date the appliance
exceeded the applicable leak rate; the
location of leaks(s) to the extent
determined to date; any repair work that
has been finished thus far, including the
date that work was finished; a plan to
finish the retrofit or retirement of the
appliance; the reasons why more than
one year is necessary to retrofit or retire
the appliance; the date of notification to
EPA; and an estimate of when retrofit or
retirement work will be finished. A
dated copy of the request must be
available on-site in either electronic or
paper copy. If the estimated completion
date is to be revised, a new estimated
date of completion and documentation
of the reason for that change must be
submitted to EPA at the address
specified in § 82.157(m) within 30 days.
Additionally, the time frames in
paragraphs (h) and (i) of this section are
temporarily suspended when an
appliance is mothballed. The time will
resume running on the day additional
refrigerant is added to the appliance (or
component of an appliance if the
leaking component was isolated).
(1) Extensions available to any
appliance. Owners or operators of
commercial refrigeration, industrial
process refrigeration, comfort-cooling,
or other equipment are automatically
allowed 18 months to retire an
appliance if the replacement appliance
uses a substitute refrigerant exempted
under § 82.154(a).
(2) Extensions available to industrial
process refrigeration. Owners or
operators of industrial process
refrigeration equipment may request
additional time beyond the one-year
period in paragraph (h) of this section
to finish the retrofit or retirement under
the following circumstances.
(i) Requirements of other applicable
Federal, state, or local regulations make
a retrofit or retirement within one year
impossible. Additional time is
permitted to the extent needed to
comply with the pertinent regulations;
(ii) The new or the retrofitted
equipment is custom-built as defined in
this subpart and the supplier of the
appliance or one of its components has
quoted a delivery time of more than 30
weeks from when the order is placed.
The appliance or appliance components
must be installed within 120 days after
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receiving delivery of the necessary
parts; or
(iii) After receiving an extension
under paragraph (i)(2)(ii) of this section,
owners or operators may request
additional time if necessary to finish the
retrofit or retirement of equipment. The
request must be submitted to EPA before
the end of the ninth month of the initial
extension and must include the same
information submitted for that
extension, with any necessary revisions.
A dated copy of the request must be
available on-site in either electronic or
paper copy. The request will be
considered approved unless EPA
notifies the owners or operators within
60 days of receipt of the request that it
is not approved.
(3) Extensions available to Federally
owned equipment. Owners or operators
of federally owned commercial or
comfort-cooling equipment may request
an additional year beyond the one-year
period in paragraph (h) of this section
to finish the retrofit or retirement under
the following circumstances:
(i) A delivery time of more than 30
weeks from the beginning of the official
procurement process is quoted due to
complications presented by the Federal
agency appropriations and/or
procurement process;
(ii) The appliance is located in an area
subject to radiological contamination
and creating a safe working
environment will require more than 30
weeks; or
(iii) After receiving a one-year
extension under paragraphs (i)(3)(i) or
(ii) of this section, additional time may
be requested if necessary to finish the
retrofit or retirement of equipment. The
request must be submitted to EPA before
the end of the ninth month of the oneyear extension and must include the
same information submitted for that
one-year extension, with any necessary
revisions. A dated copy of the request
must be available on-site in either
electronic or paper copy. The request
will be considered approved unless EPA
notifies the owners or operators within
60 days of receipt of the request that it
is not approved.
(j) Chronically leaking appliances.
Owners or operators of appliances
containing 50 pounds or more of
refrigerant that leak 125 percent or more
of the full charge in a calendar year
must submit a report to EPA at the
address in paragraph (m) of this section.
This report must be submitted by March
1 of the subsequent year and describe
efforts to identify leaks and repair the
appliance.
(k) Purged refrigerant. In calculating
annual leak rates, purged refrigerant that
is destroyed at a verifiable destruction
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82359
efficiency of 98 percent or greater will
not be counted toward the leak rate.
(l) Recordkeeping. All records
identified in this paragraph must be
kept for at least three years in electronic
or paper format, unless otherwise
specified.
(1) Owners or operators must
determine the full charge of all
appliances with 50 or more pounds of
refrigerant and maintain the following
information for each appliance until
three years after the appliance is retired:
(i) The identification of the owner or
operator of the appliance;
(ii) The address where the appliance
is located;
(iii) The full charge of the appliance
and the method for how the full charge
was determined;
(iv) If using method 4 (using an
established range) for determining full
charge, records must include the range
for the full charge of the appliance, its
midpoint, and how the range was
determined;
(v) Any revisions of the full charge,
how they were determined, and the
dates such revisions occurred.
(2) Owners or operators must
maintain a record including the
following information for each time an
appliance with a full charge of 50 or
more pounds is maintained, serviced,
repaired, or disposed of, when
applicable. If the maintenance, service,
repair, or disposal is done by someone
other than the owner or operator, that
person must provide a record containing
the following information, with the
exception of (l)(2)(vii) and (viii) of this
section, to the owner or operator:
(i) The identity and location of the
appliance;
(ii) The date of the maintenance,
service, repair, or disposal performed;
(iii) The part(s) of the appliance being
maintained, serviced, repaired, or
disposed;
(iv) The type of maintenance, service,
repair, or disposal performed for each
part;
(v) The name of the person
performing the maintenance, service,
repair, or disposal;
(vi) The amount and type of
refrigerant added to, or in the case of
disposal removed from, the appliance;
(vii) The full charge of the appliance;
and
(viii) The leak rate and the method
used to determine the leak rate (not
applicable when disposing of the
appliance, following a retrofit, installing
a new appliance, or if the refrigerant
addition qualifies as a seasonal
variance).
(3) Owners or operators must keep
records of leak inspections that include
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the date of inspection, the method(s)
used to conduct the leak inspection, a
list of the location of each leak that was
identified, and a certification that all
visible and accessible parts of the
appliance were inspected. Technicians
conducting leak inspections must, upon
conclusion of that service, provide the
owner or operator of the appliance with
documentation that meets these
requirements.
(4) If using an automatic leak
detection system, the owner or operator
must maintain records regarding the
installation and the annual audit and
calibration of the system, a record of
each date the monitoring system
identified a leak, and the location of the
leak.
(5) Owners or operators must
maintain records of the dates and results
of all initial and follow-up verification
tests. Records must include the location
of the appliance, the date(s) of the
verification tests, the location(s) of all
repaired leaks that were tested, the
type(s) of verification test(s) used, and
the results of those tests. Technicians
conducting initial or follow-up
verification tests must, upon conclusion
of that service, provide the owner or
operator of the appliance with
documentation that meets these
requirements.
(6) Owners or operators must
maintain retrofit or retirement plans
developed in accordance with
paragraph (h) of this section.
(7) Owners or operators must
maintain retrofit and/or extension
requests submitted to EPA in
accordance with paragraph (i) of this
section.
(8) Owners or operators that suspend
the deadlines in this section by
mothballing an appliance must keep
records documenting when the
appliance was mothballed and when
additional refrigerant was added to the
appliance (or isolated component).
(9) Owners or operators who exclude
purged refrigerants that are destroyed
from annual leak rate calculations must
maintain records to support the amount
of refrigerant claimed as sent for
destruction. Records must be based on
a monitoring strategy that provides
reliable data to demonstrate that the
amount of refrigerant claimed to have
been destroyed is not greater than the
amount of refrigerant actually purged
and destroyed and that the 98 percent
or greater destruction efficiency is met.
Records must include flow rate,
quantity or concentration of the
refrigerant in the vent stream, and
periods of purge flow. Records must
include:
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(i) The identification of the facility
and a contact person, including the
address and telephone number;
(ii) A description of the appliance,
focusing on aspects relevant to the
purging of refrigerant and subsequent
destruction;
(iii) A description of the methods
used to determine the quantity of
refrigerant sent for destruction and type
of records that are being kept by the
owners or operators where the
appliance is located;
(iv) The frequency of monitoring and
data-recording; and
(v) A description of the control
device, and its destruction efficiency.
(10) Owners or operators that exclude
additions of refrigerant due to seasonal
variance from their leak rate calculation
must maintain records stating that they
are using the seasonal variance
flexibility and documenting the amount
added and removed under § 82.157(l)(2).
(11) Owners or operators that submit
reports to EPA in accordance with
paragraph (m) of this section must
maintain copies of the submitted reports
and any responses from EPA.
(m) Reporting. All notifications must
be submitted electronically to
608reports@epa.gov unless the
notification contains confidential
business information. If the notification
contains confidential business
information, the information should be
submitted to: Section 608 Program
Manager; Stratospheric Protection
Division; Mail Code: 6205T; U.S.
Environmental Protection Agency; 1200
Pennsylvania Avenue NW., Washington,
DC 20460.
(1) Owners or operators must notify
EPA at this address in accordance with
paragraph (f) of this section when
seeking an extension of time to
complete repairs.
(2) Owners or operators must notify
EPA at this address in accordance with
paragraph (h)(5)(ii) of this section when
seeking relief from the obligation to
retrofit or retire an appliance.
(3) Owners or operators must notify
EPA at this address in accordance with
paragraph (i) of this section when
seeking an extension of time to
complete the retrofit or retirement of an
appliance.
(4) Owners or operators must notify
EPA at this address in accordance with
paragraph (j) of this section for any
appliance that leaks 125 percent or more
of the full charge in a calendar year.
(5) When excluding purged
refrigerants that are destroyed from
annual leak rate calculations, owners or
operators must notify EPA at this
address within 60 days after the first
time the exclusion is used by the facility
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where the appliance is located. The
report must include the information
included in paragraph (l)(9) of this
section.
■ 8. Revise § 82.158 to read as follows:
§ 82.158 Standards for recovery and/or
recycling equipment.
Starting January 1, 2017, this section
applies to recovery and/or recycling
equipment for use during the
maintenance, service, repair, or disposal
of appliances containing any class I or
class II refrigerant or any non-exempt
substitute refrigerant.
(a) No person may manufacture or
import recovery and/or recycling
equipment for use during the
maintenance, service, repair, or disposal
of appliances unless the equipment is
certified in accordance with this
section.
(b) No person may alter the design of
certified refrigerant recovery and/or
recycling equipment in a way that
would affect the equipment’s ability to
meet the certification standards in this
section without resubmitting the altered
design for certification testing. Until it
is tested and shown to meet the
certification standards in this section,
equipment so altered will be considered
uncertified.
(c) Recovery and/or recycling
equipment manufactured or imported
before November 15, 1993, intended for
use during the maintenance, service,
repair, or disposal of appliances (except
small appliances, MVACs, and MVAClike appliances) will be considered
certified if it is capable of achieving the
level of evacuation specified in Table 2
of this section when tested using a
properly calibrated pressure gauge.
(d) Manufacturers and importers of
recovery and/or recycling equipment
must have such equipment certified by
an approved equipment testing
organization as follows:
(1) Recovery and/or recycling
equipment manufactured or imported
on or after November 15, 1993, and
before September 22, 2003, intended for
use during the maintenance, service,
repair, or disposal of appliances (except
small appliances, MVACs, and MVAClike appliances) must be certified by an
approved equipment testing
organization as being capable of
achieving the level of evacuation
specified in Table 2 of this section
under the conditions of appendix B1 of
this subpart (based upon the ARI
Standard 740–1993, Performance of
Refrigerant Recovery, Recycling and/or
Reclaim Equipment).
(2) Recovery and/or recycling
equipment manufactured or imported
on or after September 22, 2003, and
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before January 1, 2017, intended for use
during the maintenance, service, repair,
or disposal of appliances (except small
appliances, MVACs, and MVAC-like
appliances) must be certified by an
approved equipment testing
organization as being capable of
achieving the level of evacuation
specified in Table 2 of this section
under the conditions of appendix B2 of
this subpart (based upon the ARI
Standard 740–1995, Performance of
Refrigerant Recovery, Recycling and/or
Reclaim Equipment).
(3) Recovery and/or recycling
equipment manufactured or imported
on or after January 1, 2017, intended for
use during the maintenance, service,
repair, or disposal of appliances (except
small appliances, MVACs, and MVAC-
82361
like appliances) must be certified by an
approved equipment testing
organization as being capable of
achieving the level of evacuation
specified in Table 2 of this section
under the conditions of appendix B3
(for non-flammable refrigerants) based
upon AHRI Standard 740–2016 or
appendix B4 (for flammable refrigerants)
of this subpart.
TABLE 2—LEVELS OF EVACUATION WHICH MUST BE ACHIEVED BY RECOVERY AND/OR RECYCLING EQUIPMENT
[Except for small appliances, MVACs, and MVAC-like appliances.]
Inches of Hg vacuum
(relative to standard atmospheric pressure of
29.9 inches Hg)
Type of appliance with which recovery and/or recycling machine is intended to be used
Manufactured or
imported before
November 15, 1993
mstockstill on DSK3G9T082PROD with RULES5
HCFC–22 appliances, or isolated component of such appliances, with a full charge of less than
200 pounds of refrigerant.
HCFC–22 appliances, or isolated component of such appliances, with a full charge of 200
pounds or more of refrigerant.
Very high-pressure appliances ........................................................................................................
Other high-pressure appliances, or isolated component of such appliances, with a full charge of
less than 200 pounds of refrigerant.
Other high-pressure appliances, or isolated component of such appliances, with a full charge of
200 pounds or more of refrigerant.
Medium-pressure appliances, or isolated component of such appliances, with a full charge of
less than 200 pounds of refrigerant.
Medium-pressure appliances, or isolated component of such appliances, with a full charge of
200 pounds or more of refrigerant.
Low-pressure appliances .................................................................................................................
(4) Recovery and/or recycling
equipment whose recovery efficiency
cannot be tested according to the
procedures in appendix B1, B2, B3, or
B4 of this subpart as applicable may be
certified if an approved third-party
testing organization adopts and
performs a test that demonstrates, to the
satisfaction of the Administrator, that
the recovery efficiency of that
equipment is equal to or better than that
of equipment that:
(i) Is intended for use with the same
type of appliance; and
(ii) Achieves the level of evacuation
in Table 2. The manufacturer’s
instructions must specify how to
achieve the required recovery efficiency,
and the equipment must be tested when
used according to these instructions.
(5) The equipment must meet the
minimum requirements for certification
under appendix B1, B2, B3, or B4 of this
subpart as applicable.
(6) If the equipment is equipped with
a noncondensables purge device, the
equipment must not release more than
3 percent of the quantity of refrigerant
being recycled through
noncondensables purging under the
conditions of appendix B1, B2, B3, or
B4 of this subpart as applicable.
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(7) The equipment must be equipped
with low-loss fittings on all hoses.
(8) The equipment must have its
liquid recovery rate and its vapor
recovery rate measured under the
conditions of appendix B1, B2, B3, or
B4 as applicable, unless the equipment
has no inherent liquid or vapor recovery
rate.
(e) Small Appliances. Equipment used
during the maintenance, service, repair,
or disposal of small appliances must be
certified by an approved equipment
testing organization to be capable of
recovering 90 percent of the refrigerant
in the test stand when the compressor
of the test stand is operational and 80
percent of the refrigerant when the
compressor of the test stand is not
operational, when used in accordance
with the manufacturer’s instructions
under the conditions of appendix C,
Method for Testing Recovery Devices for
Use with Small Appliances.
(1) Equipment manufactured or
imported before November 15, 1993,
will be considered certified if it is
capable of either recovering 80 percent
of the refrigerant in the system, whether
or not the compressor of the test stand
is operational, or achieving a four-inch
vacuum when tested using a properly
calibrated pressure gauge.
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Manufactured or
imported on or after
November 15, 1993
0 ................................
0.
4 ................................
10.
0 ................................
4 ................................
0.
10.
4 ................................
15.
4 ................................
10.
4 ................................
15.
25 mm Hg absolute ...
25 mm Hg absolute.
(2) Equipment manufactured or
imported on or after November 15, 1993,
may also be certified if it is capable of
achieving a four-inch vacuum under the
conditions of appendix B1 of this
subpart, based upon ARI Standard 740–
1993.
(3) Equipment manufactured or
imported on or after September 22,
2003, and before January 1, 2017, may
also be certified if it is capable of
achieving a four-inch vacuum under the
conditions of appendix B2 of this
subpart, based upon ARI Standard 740–
1995.
(4) Equipment manufactured or
imported on or after January 1, 2017,
may also be certified if it is capable of
achieving a four-inch vacuum under the
conditions of appendix B3 of this
subpart (for non-flammable refrigerants),
based upon AHRI Standard 740–2016 or
appendix B4 of this subpart (for
flammable refrigerants), based upon
both AHRI Standard 740–2016 and UL
1963, Supplement SB, Requirements for
Refrigerant Recovery/Recycling
Equipment Intended for Use with a
Flammable Refrigerant, Fourth Edition,
June 1, 2011.
(5) Equipment used to evacuate any
class I or class II refrigerant or any nonexempt substitute refrigerant from small
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appliances before they are disposed of
may also be certified if it is capable of
achieving a four-inch vacuum when
tested using a properly calibrated
pressure gauge.
(f) MVAC-like appliances. (1)
Manufacturers and importers of
recovery and/or recycling equipment
intended for use during the
maintenance, service, repair, or disposal
of MVAC-like appliances must certify
such equipment in accordance with
subpart B of this part.
(2) Equipment manufactured or
imported before November 15, 1993,
intended for use during the
maintenance, service, or repair of
MVAC-like appliances must be capable
of reducing the system pressure to 102
mm of mercury vacuum under the
conditions of appendix A of subpart B
of this part.
(g) MVACs. Manufacturers and
importers of recovery and/or recycling
equipment intended for use during the
maintenance, service, repair, or disposal
of MVACs must certify such equipment
in accordance with subpart B of this
part.
(h) Labeling. (1) Manufacturers and
importers of equipment certified under
paragraphs (d) and (e) of this section
must place a label on each piece of
equipment stating the following:
THIS EQUIPMENT HAS BEEN
CERTIFIED BY [APPROVED
EQUIPMENT TESTING
ORGANIZATION] TO MEET EPA’s
MINIMUM REQUIREMENTS FOR
RECYCLING OR RECOVERY
EQUIPMENT INTENDED FOR USE
WITH [APPROPRIATE CATEGORY OF
APPLIANCE].
(2) The label must also show the date
of manufacture and the serial number (if
applicable) of the equipment. The label
must be affixed in a readily visible or
accessible location, be made of a
material expected to last the lifetime of
the equipment, present required
information in a way that it is likely to
remain legible for the lifetime of the
equipment, and be affixed in such a way
that it cannot be removed from the
equipment without damage to the label.
(i) Retesting. At least once every three
years, manufacturers or importers of
certified recovery and/or recycling
equipment intended for use during the
maintenance, service, or repair of
appliances (except MVACs or MVAClike appliances) or during the disposal
of appliances (except small appliances,
MVACs, and MVAC-like appliances)
must have approved equipment testing
organizations conduct either:
(1) Retests of certified recovery and/
or recycling equipment in accordance
with paragraphs (d) and (e) of this
section; or
(2) Inspections of recovery and/or
recycling equipment at manufacturing
facilities to ensure that each equipment
model line that has been certified under
this section continues to meet the
certification criteria.
(j) Revocation. An equipment model
line that has been certified under this
section may have its certification
revoked if it is subsequently determined
to fail to meet the certification criteria.
In such cases, the Administrator must
give notice to the manufacturer or
importer setting forth the basis for the
determination.
(k) Equipment that is advertised or
marketed as ‘‘recycling equipment’’
must be capable of recycling the
standard contaminated refrigerant
sample of appendix B2, B3, or B4 of this
subpart (as applicable) to the levels in
the following table when tested under
the conditions of appendix B2, B3 or B4
of this subpart:
MAXIMUM LEVELS OF CONTAMINANTS PERMISSIBLE IN REFRIGERANT PROCESSED THROUGH EQUIPMENT ADVERTISED AS
‘‘RECYCLING’’ EQUIPMENT
Contaminants
Low-pressure (R–11, R–123, R–113)
systems
R–12 systems
Acid Content (by wt.) ...........................
Moisture (by wt.) ..................................
Noncondensable Gas (by vol.)
High Boiling Residues (by vol.)
Chlorides by Silver Nitrate Test ...........
Particulates ..........................................
1.0 PPM ...............................................
20 PPM ................................................
N/A .......................................................
1.0% ....................................................
No turbidity ..........................................
Visually clean ......................................
1.0 PPM ...............................................
10 PPM ................................................
2.0% ....................................................
0.02% ..................................................
No turbidity ..........................................
Visually clean ......................................
■
9. Revise § 82.160 to read as follows:
mstockstill on DSK3G9T082PROD with RULES5
§ 82.160 Approved equipment testing
organizations.
(a) Any equipment testing
organization may apply for approval by
the Administrator to certify equipment
under the standards in § 82.158 and
appendices B2, B3, B4, or C of this
subpart. Applications must be sent to
608reports@epa.gov, or if containing
confidential business information,
mailed to: Section 608 Program
Manager, Stratospheric Protection
Division, Mail Code: 6205T, U.S.
Environmental Protection Agency, 1200
Pennsylvania Avenue NW., Washington,
DC 20460.
(b) Applications for approval must
include:
(1) A list of equipment present at the
organization that will be used for
equipment testing.
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(2) Verification of the organization’s
expertise in equipment testing and the
technical experience of the
organization’s personnel.
(3) Verification of the organization’s
knowledge of the standards and
recordkeeping and reporting
requirements of this subpart.
(4) A description of the organization’s
program for verifying the performance
of certified recovery and/or recycling
equipment manufactured over the long
term, specifying whether retests of
equipment or inspections of equipment
at manufacturing facilities will be used.
(5) Verification that the organization
has no conflict of interest and receives
no direct or indirect financial benefit
from the outcome of certification
testing.
(6) Agreement to allow the
Administrator access to records and
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All other systems
1.0 PPM.
20 PPM.
2.0%.
0.02%.
No turbidity.
Visually clean.
personnel to verify the information
contained in the application.
(c) Organizations may not certify
equipment before receiving approval
from EPA. If approval is denied under
this section, the Administrator must
give written notice to the organization
setting forth the basis for the
determination.
(d) If an approved testing organization
conducts certification tests in a way not
consistent with the representations
made in its application or with the
provisions of this subpart, the
Administrator may revoke approval in
accordance with § 82.169. In such cases,
the Administrator must give notice to
the organization setting forth the basis
for the determination.
(e) Recordkeeping and reporting. (1)
Approved equipment testing
organizations must maintain records of
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equipment testing and performance and
a list of equipment that meets EPA
requirements. This list must include the
name of the manufacturer and the name
and/or serial number of the model line.
Approved equipment testing
organizations must publish online a list
of all certified equipment that includes
the information specified above and
update the list annually.
(2) Approved equipment testing
organizations must notify EPA at
608reports@epa.gov if retests of
equipment or inspections of
manufacturing facilities conducted
under to § 82.158(i) show that a
previously certified model line fails to
meet EPA requirements. Such
notification must be received within
thirty days of the retest or inspection.
(3) All records must be maintained for
three years after the equipment is no
longer offered for sale. Online lists must
contain certified equipment until three
years after that equipment is no longer
offered for sale.
■ 10. Revise § 82.161 to read as follows:
mstockstill on DSK3G9T082PROD with RULES5
§ 82.161
Technician certification.
Until January 1, 2018, this section
applies only to technicians and
organizations certifying technicians that
maintain, service, or repair appliances
containing class I or class II refrigerants.
Starting on January 1, 2018, this section
applies to technicians and organizations
certifying technicians that maintain,
service, or repair appliances containing
any class I or class II refrigerant or any
non-exempt substitute refrigerant.
(a) Certification Requirements. (1)
Any person who could be reasonably
expected to violate the integrity of the
refrigerant circuit during the
maintenance, service, repair, or disposal
of appliances (as follows in this
paragraph) containing a class I or class
II refrigerant or a non-exempt substitute
refrigerant must pass a certification
exam offered by an approved technician
certification program.
(i) Persons who maintain, service, or
repair small appliances must be
certified as Type I technicians.
(ii) Persons who maintain, service,
repair, or dispose of medium-, high-, or
very high-pressure appliances (except
small appliances, MVACs, and MVAClike appliances) must be certified as
Type II technicians.
(iii) Persons who maintain, service,
repair, or dispose of low-pressure
appliances must be certified as Type III
technicians.
(iv) Persons who maintain, service,
repair, or dispose of all appliances
described in paragraph (a)(1)(i) through
(iii) of this section must be certified as
Universal technicians.
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(v) Technicians who maintain,
service, or repair MVAC-like appliances
must either be certified as Type II
technicians or be certified in accordance
with 40 CFR part 82, subpart B.
(vi) Persons who maintain, service, or
repair MVAC appliances for
consideration must be certified in
accordance with 40 CFR part 82, subpart
B.
(vii) Persons who dispose of small
appliances, MVACs, and MVAC-like
appliances are not required to be
certified.
(2) Apprentices are exempt from the
requirement in paragraph (a)(1) of this
section provided the apprentice is
closely and continually supervised by a
certified technician while performing
any maintenance, service, repair, or
disposal that could reasonably be
expected to release refrigerant from an
appliance into the environment, except
those substitute refrigerants exempted
under paragraph (a)(1) of this section.
The supervising certified technician and
the apprentice have the responsibility to
ensure that the apprentice complies
with this subpart.
(3) The Administrator may require
technicians to demonstrate at their place
of business their ability to perform
proper procedures for recovering and/or
recycling refrigerant, except those
substitute refrigerants exempted under
paragraph (a)(1) of this section. Failure
to demonstrate or failure to properly use
the equipment may result in revocation
or suspension of the certificate. Failure
to abide by any of the provisions of this
subpart may also result in revocation or
suspension of the certificate. If a
technician’s certificate is revoked, the
technician would need to recertify
before maintaining, servicing, repairing,
or disposing of any appliances.
(4) (i) Technicians certified under this
section must keep a copy of their
certificate at their place of business.
(ii) Technicians must maintain a copy
of their certificate until three years after
no longer operating as a technician.
(5) Recertification. The Administrator
reserves the right to specify a
requirement for technician
recertification at some future date, if
necessary, by placing a notice in the
Federal Register.
(b) Requirements for Technician
Certification Programs. (1) No
technician training or testing program
may issue certificates under this section
unless the program complies with all
the standards of this section and
appendix D, and has been granted
approval by the Administrator.
(2) Program Approval. Persons may
seek approval of any technician
certification program (program), in
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82363
accordance with this paragraph, by
submitting to the Administrator at the
address in § 82.160(a) verification that
the program meets all the standards
listed in appendix D of this subpart. The
Administrator reserves the right to
consider other relevant factors to ensure
the effectiveness of certification
programs. If approval is denied under
this section, the Administrator must
give written notice to the program
setting forth the basis for the
determination.
(3) Alternative Examinations.
Programs are encouraged to make
provisions for non-English speaking
technicians by providing tests in other
languages or allowing the use of a
translator when taking the test. A test
may be administered orally to any
person who makes this request, in
writing, to the program at least 30 days
before the scheduled date for the
examination. The written request must
explain why the request is being made.
(4) Proof of Certification. Programs
certifying technicians must provide
technicians with identification cards in
accordance with section (f) of appendix
D of this subpart.
(5) Programs certifying technicians
must maintain records in accordance
with section (g) of appendix D of this
subpart.
(6) Starting January 1, 2018, programs
certifying technicians, excluding
Federally-run programs, must publish
online a list of all technicians they have
certified on or after January 1, 2017.
Certifying organizations must update
these lists at least annually.
(i) The list must include the first
name, middle initial, and last name of
the certified technician, the technician’s
city of residence when taking the test,
the type(s) of certification received, and
the date each certification was received.
(ii) Programs certifying technicians
must provide notice to technicians that
such information will be published
online in compliance with any other
Federal, state or local regulations, and
allow technicians to opt out of being
included in such lists.
(7) If an approved program violates
any of the above requirements, the
Administrator may revoke approval in
accordance with § 82.169. In such cases,
the Administrator must give notice to
the organization setting forth the basis
for the determination.
(c) Test Subject Material. A bank of
test questions developed by the
Administrator consists of groups,
including a core group and technical
groups. The Administrator will release
this bank of questions only to approved
technician certification programs. Each
test for each type of certification must
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include at least 25 questions drawn
from the core group and at least 25
questions drawn from each relevant
technical group. These questions must
address the subject areas in appendix D
of this subpart.
§ 82.162
■
■
11. Remove and reserve § 82.162.
12. Revise § 82.164 to read as follows:
§ 82.164
mstockstill on DSK3G9T082PROD with RULES5
[Removed and Reserved]
Reclaimer certification.
(a) All persons reclaiming used class
I or II refrigerant or non-exempt
substitute refrigerant for sale to a new
owner must meet the following
requirements:
(1) Reclaim such refrigerant to all the
specifications in appendix A of this
subpart (based on AHRI Standard 700–
2016, Specifications for Refrigerants)
that are applicable to that refrigerant;
(2) Verify that each batch of such
refrigerant reclaimed meets these
specifications using the analytical
methodology prescribed in appendix A
of this subpart, which includes the
primary methodologies included in
appendix A of AHRI Standard 700–
2016;
(3) Release no more than 1.5 percent
of the refrigerant during the reclamation
process;
(4) Dispose of wastes from the
reclamation process in accordance with
all applicable laws and regulations; and
(5) Maintain records and submit
reports in accordance with paragraph
(d) of this section.
(b) The owner or a responsible officer
reclaiming used refrigerant for sale to a
new owner, except for persons who
properly certified under this section
before May 11, 2004, must certify to the
Administrator at the address in
§ 82.160(a) that they will meet the
requirements in paragraph (a) of this
section. The certification must include
the name and address of the reclaimer
and a list of equipment used to reclaim
the refrigerant to the required standard,
and to analyze the refrigerant to ensure
it meets these specifications.
(c) Certificates are not transferable. In
the event of a change in ownership of
an entity which reclaims refrigerant, the
new owner of the entity must certify
with the Administrator within 30 days
of the change that they will meet the
reclaimer certification requirements. In
the event of a change in business
management, location, or contact
information, the owner of the entity
must notify EPA within 30 days of the
change at the address in § 82.160(a).
(d) Recordkeeping and reporting. (1)
Reclaimers must maintain records, by
batch, of the results of the analysis
conducted to verify that reclaimed
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refrigerant meets the necessary
specifications in paragraph (a)(2) of this
section.
(2) Reclaimers must maintain records
of the names and addresses of persons
sending them material for reclamation
and the quantity of the material (the
combined mass of refrigerant and
contaminants) by refrigerant type sent to
them for reclamation. Such records
must be maintained on a transactional
basis for three years.
(3) Reclaimers must report to the
Administrator annually by February 1 of
the next calendar year the total annual
quantity of material (the combined mass
of refrigerant and contaminants) by
refrigerant type sent to them for
reclamation, the total annual mass of
each refrigerant reclaimed, and the total
annual mass of waste products.
(e) Failure to abide by any of the
provisions of this subpart may result in
revocation or suspension of the
certification of the reclaimer in
accordance with § 82.169. In such cases,
the Administrator must give notice to
the organization setting forth the basis
for the determination.
■ 13. Amend § 82.166 by:
■ a. Revising the section heading;
■ b. Adding the introductory paragraph;
■ c. Removing and reserving paragraphs
(a) through (i), and (l); and
■ d. Revising paragraph (m) and the
introductory text of paragraph (q).
Revisions and addition to read as
follows:
§ 82.166 Reporting and recordkeeping
requirements for leak repair.
This section contains leak repair
reporting and recordkeeping
requirements that apply to owners and
operators of appliances containing 50 or
more pounds of class I or class II
refrigerants until January 1, 2019.
Starting January 1, 2019, the
recordkeeping and reporting
requirements in the leak repair
provisions in § 82.157(l) and (m) apply
to owners and operators of appliances
containing 50 or more pounds of class
I or class II refrigerants or non-exempt
substitutes.
(a)–(i) [Reserved]
*
*
*
*
*
(l) [Reserved]
(m) All records required to be
maintained pursuant to this section
must be kept for a minimum of three
years unless otherwise indicated.
*
*
*
*
*
(q) Owners or operators choosing to
determine the full charge as defined in
§ 82.156(j) of an affected appliance by
using an established range or using that
methodology in combination with other
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methods for determining the full charge
as defined in § 82.156(j) must maintain
the following information:
*
*
*
*
*
■ 14. Add § 82.168 to read as follows:
§ 82.168
Incorporation by Reference.
(a) Certain material is incorporated by
reference into this subpart part with the
approval of the Director of the Federal
Register under 5 U.S.C. 552(a) and 1
CFR part 51. You can obtain the
material from the sources listed below.
You may inspect a copy of the approved
material at U.S. EPA’s Air and Radiation
Docket; EPA West Building, Room 3334,
1301 Constitution Ave. NW.,
Washington, DC, or at the National
Archives and Records Administration
(NARA). For information on the
availability of this material at NARA,
call (202) 741–6030 or go to https://
www.archives.gov/federal_register/
code_of_federal_regulations/ibr_
locations.html.
(b) Air-Conditioning, Heating, and
Refrigeration Institute (AHRI), 2111
Wilson Boulevard, Suite 500, Arlington,
VA 22201, www.ahrinet.org.
(1) AHRI Standard 110–2016, 2016
Standard for Air-Conditioning, Heating
and Refrigerating Equipment Nameplate
Voltages, copyright 2016, into Appendix
B3 to subpart F.
(2) 2008 Appendix C to AHRI
Standard 700–2014, 2008 Appendix C
for Analytical Procedures for AHRI
Standard 700–2014—Normative,
copyright 2008, into Appendix A to
subpart F.
(3) 2008 Appendix D to AHRI
Standard 700–2014, 2012 Appendix D
for Gas Chromatograms for AHRI
Standard 700–2014—Informative,
copyright 2012, into Appendix A to
subpart F.
(c) American Society of Heating,
Refrigerating and Air-Conditioning
Engineers, Inc., (ASHRAE), 1791 Tullie
Circle NE., Atlanta, GA 30329, U.S.A.
(1) ANSI/ASHRAE Standard 63.2–
1996 (RA 2010), Method of Testing
Liquid-Line Filter Drier Filtration
Capability, Reaffirmed June 26, 2010,
into Appendix B3 to subpart F.
(d) ASTM International, 100 Barr
Harbor Drive, P.O. Box C700, West
Conshohocken, PA 19428–2959,
www.astm.org.
(1) ASTM D1296–01 (Reapproved
2012), Standard Test Method for Odor
of Volatile Solvents and Diluents,
approved July 1, 2012, into Appendix A
to subpart F.
(2) [Reserved]
(e) Gas Processors Association, 6526
East 60th Street, Tulsa, Oklahoma
74145.
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(1) GPA Standard STD–2177–13,
Analysis of Natural Gas Liquid Mixtures
Containing Nitrogen and Carbon
Dioxide by Gas Chromatography,
Revised, copyright 2013, into Appendix
A to subpart F.
(2) [Reserved]
(f) General Services Administration,
301 7th St. SW., Washington, DC 20410.
(1) BB–F–1421B, Federal
Specification for ‘‘Fluorocarbon
Refrigerants,’’ dated March 5, 1982, IBR
approved for Appendix A to subpart F.
(2) [Reserved]
(g) International Electrotechnical
´
Commission (IEC), 3, rue de Varembe,
P.O. Box 131. CH–1211 Geneva 20—
Switzerland, 41 22 919 02 11, https://
www.iec.ch.
(1) IEC 60038, IEC Standard Voltages,
Edition 7.0, 2009–06, into Appendix B3
to subpart F.
(2) [Reserved]
(h) Underwriters Laboratories (UL),
333 Pfingsten Road, Northbrook, IL
60062, 847–272–8800, https://
www.ul.com.
(1) UL 1963, Standard for Safety
Requirements for Refrigerant Recovery/
Recycling Equipment, Fourth Edition
(with revisions through October 13,
2013), June 1, 2011, in appendix B3 to
subpart F, appendix B4 to subpart F.
(2) [Reserved]
■ 15. Amend subpart F by revising
appendix A to read as follows:
Appendix A to Subpart F of Part 82—
Specifications for Refrigerants
This appendix is based on the AirConditioning, Heating, and Refrigeration
Institute Standard 700–2016, Specifications
for Refrigerants.
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Section 1. Purpose
1.1 Purpose. The purpose of this standard
is to evaluate and accept/reject refrigerants
regardless of source (i.e., new, reclaimed
and/or repackaged) for use in new and
existing refrigeration and air-conditioning
products as required under 40 CFR part 82.
1.1.1 Intent. This standard is intended for
the guidance of the industry including
manufacturers, refrigerant reclaimers,
repackagers, distributors, installers,
servicemen, contractors and for consumers.
1.1.2 Review and Amendment. This
standard is subject to review and amendment
as the technology advances.
Section 2. Scope
2.1 Scope. This standard specifies
acceptable levels of contaminants (purity
requirements) for various fluorocarbon and
other refrigerants regardless of source and
lists acceptable test methods. These
refrigerants are as referenced in the ANSI/
ASHRAE Standard 34 with Addenda:
2.1.1 Single-Component Fluorocarbon
Refrigerants: R–11, R–12, R–13, R–22, R–23,
R–32, R–113, R–114, R–115, R–116, R–123,
R–124, R–125, R–134a, R–141b, R–142b, R–
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143a, R–152a, R–218, R–227ea, R–236fa, R–
245fa, R–1233zd(E), R–1234yf, R–1234ze(E);
2.1.2 Single Component Hydrocarbon
Refrigerants: R–50, R–170, R–E170, R–290,
R–600, R–600a, R–601, R–601a, R–610, R–
1150, R–1270;
2.1.3 Carbon Dioxide Refrigerant: R–744;
2.1.4 Zeotropic Blend Refrigerants: R–
401A, R–401B, R–402A, R–402B, R–403A, R–
403B, R–404A, R–405A, R–406A, R–407A, R–
407B, R–407C, R–407D, R–407E, R–407F, R–
408A, R–409A, R–409B, R–410A, R–410B, R–
411A, R–411B, R–412A, R–413A, R–414A, R–
414B, R–415A, R–415B, R–416A, R–417A, R–
417B, R–417C, R–418A, R–419A, R–419B, R–
420A, R–421A, R–421B, R–422A, R–422B, R–
422C, R–422D, R–422E, R–423A, R–424A, R–
425A, R–426A, R–427A, R–428A, R–429A,
R–430A, R–431A, R–434A, R–435A, R–437A,
R–438A, R–439A, R–440A, R–442A, R–444A,
R–444B, R–445A, R–446A, R–447A, R–448A,
R–449A, R–450A;
2.1.5 Zeotropic Hydrocarbon Blend
Refrigerants: R–432A, R–433A, R–433B, R–
433C, R–436A, R–436B, R–441A, R–443A;
and
2.1.6 Azeotropic Blend Refrigerants: R–
500, R–502, R–503, R–507A, R–508A, R–
508B, R–509A, R–510A, R–511A, and R–
512A.
Section 3. Definitions
3.1 Definitions. All terms in this
appendix will follow the definitions in
§ 82.152 unless otherwise defined in this
appendix.
3.2 Shall, Should, Recommended, or It Is
Recommended shall be interpreted as
follows:
3.2.1 Shall. Where ‘‘shall’’ or ‘‘shall not’’
is used for a provision specified, that
provision is mandatory if compliance with
this appendix is claimed.
3.2.2 Should, Recommended, or It is
Recommended is used to indicate provisions
which are not mandatory but which are
desirable as good practice.
Section 4. Characterization of Refrigerants
and Contaminants
4.1 Characterization. Characterization of
single component fluorocarbon (Table 1A)
and zeotropic/azeotropic blend (Table 2A/3)
refrigerants and contaminants are listed in
the following general classifications:
4.1.1 Isomer content (see Table 1A)
4.1.2 Air and other non-condensables (see
Tables 1A, 2A, 3)
4.1.3 Water (see Tables 1A, 2A, 3)
4.1.4 All other volatile impurities (see
Tables 1A, 2A, 3)
4.1.5 High boiling residue (see Tables 1A,
2A, 3)
4.1.6 Halogenated unsaturated volatile
impurities (see Table 1A)
4.1.7 Particulates/solids (see Tables 1A,
2A, 3)
4.1.8 Acidity (see Tables 1A, 2A, 3)
4.1.9 Chloride (see Tables 1A, 2A, 3)
4.2 Hydrocarbon Characterization.
Characterization of hydrocarbon refrigerants
(Tables 1B and 2B) and contaminants are
listed in the following general classifications:
4.2.1 Nominal composition
4.2.2 Other allowable impurities
4.2.3 Air and other non-condensables
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4.2.4 Sulfur odor
4.2.5 High boiling residue
4.2.6 Particulates/solids
4.2.7 Acidity
4.2.8 Water
4.2.9 All other volatile impurities
4.2.10 Total C3, C4, and C5 polyolefins
4.3 Carbon Dioxide Characterization.
Characterization of carbon dioxide (Table 1C)
and its contaminants are listed in the
following general classifications:
4.3.1 Purity
4.3.2 Air and other non-condensables
4.3.3 Water
4.3.4 High boiling residue
4.3.5 Particulates/solids
Section 5. Sampling and Summary of Test
Procedures
5.1 Referee Test. The referee test methods
for the various contaminants are summarized
in the following paragraphs. Detailed test
procedures are included in 2008 Appendix C
to AHRI Standard 700–2014 (incorporated by
reference, see § 82.168). If alternative test
methods are employed, the user must be able
to demonstrate that they produce results at
least equivalent to the specified referee test
method.
5.2 Refrigerant Sampling
5.2.1 Sampling Precautions. Special
precautions should be taken to ensure that
representative samples are obtained for
analysis. Sampling shall be done by qualified
personnel following accepted sampling and
safety procedures. Refrigerants with critical
temperatures near or below ambient
temperature cannot be reliably sampled for
both liquid and vapor phase without special
handling.
Note: Flammable refrigerants which are
ASHRAE 34 class 2L, 2, or 3 present
additional safety challenges and require
additional measures for sampling safety
procedures compared to nonflammable
halocarbons documented in this standard.
5.2.2 Cylinder Preparation. Place a clean,
empty sample cylinder with the valve open
in an oven at 110 °C (230 °F) for one hour.
Remove it from the oven while hot,
immediately connect it to an evacuation
system and evacuate to less than 56 kPa.
Close the valve and allow it to cool. Weigh
the empty cylinder.
5.2.3 Vapor Phase Sampling. A vapor
phase sample shall be obtained for
determining the non-condensables. The
source temperature shall be measured and
recorded at the time the sample is taken.
5.2.3.1 Special Handling for Low Critical
Temperature Refrigerant. A vapor phase
sample is required to determine noncondensables and volatile impurities,
including other refrigerants. The vapor phase
sample is obtained by regulating the sample
container temperature to 5 K or more above
the refrigerant critical temperature.
5.2.3.2 Handling for Liquid Refrigerants
with Boiling Points Near or Above Room
Temperature. Since R–11, R–113, R–123, R–
141b, R–245fa, and R–1233zd(E) have normal
boiling points near or above room
temperature, non-condensable determination
is not required for these refrigerants.
Note: Non-condensable gases, if present,
will concentrate in the vapor phase of the
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refrigerant; care must be exercised to
eliminate introduction of either air or liquid
phase refrigerant during the sample transfer.
5.2.4 Liquid Phase Sampling. A liquid
phase sample is required for all tests listed
in this standard except the test for noncondensables.
5.2.4.1 Liquid Sampling. Accurate
analysis requires that the sample cylinder, at
ambient temperature, be filled to at least 60
percent by volume; however, under no
circumstances should the cylinder be filled
to more than 80 percent by volume. This can
be accomplished by weighing the empty
cylinder and then the cylinder with
refrigerant. When the desired amount of
refrigerant has been collected, close the
valve(s) and immediately disconnect the
sample cylinder.
Note: Care should be taken to ensure that
all connections and transfer lines are dry and
evacuated to avoid contaminating the
sample.
Note: Low critical temperature refrigerants
can have extremely high pressure and the
sampling vessel, all connections, and transfer
lines must be designed to handle high
pressures.
5.2.4.2 Special Handling for Low Critical
Temperature Refrigerant. A liquid phase
sample is required for all testing except
volatile impurities, including other
refrigerants. The liquid phase sample is
obtained by regulating the sample cylinder
temperature to 2 °C below the critical
temperature of the refrigerant.
Note: If free water is present in the sample,
cooling to below 0 °C may result in the
formation of ice. Clathrates may form at
temperatures above 0 °C with some
fluorocarbon refrigerants.
5.2.4.3 Record Weight. Check the sample
cylinder for leaks and record the gross
weight.
5.3 Refrigerant Identification. The
required method shall be gas chromatography
(GC) as described in 2008 Appendix C to
AHRI Standard 700–2014 (incorporated by
reference, see § 82.168) with the
corresponding gas chromatogram figures as
illustrated in 2012 Appendix D to AHRI
Standard 700–2014 (incorporated by
reference, see § 82.168). The chromatogram of
the sample shall be compared to known
standards.
5.3.2 Alternative Method. Determination
of the boiling point and boiling point range
is an acceptable alternative test method
which can be used to characterize
refrigerants. The test method shall be that
described in section 4.4.3 of BB–F–1421B
(incorporated by reference, see § 82.168).
5.3.3 Required Values. The required
values for boiling point and boiling point
range are given in Table 1A, Physical
Properties of Single Component Refrigerants;
Table 1B, Physical Properties of Zeotropic
Blends (400 Series Refrigerants); and Table
1C, Physical Properties of Azeotropic Blends
(500 Series Refrigerants).
5.4 Water Content.
5.4.1 Method. The Coulometric Karl
Fischer Titration shall be the primary test
method for determining the water content of
refrigerants. This method is described in
2008 Appendix C to AHRI Standard 700–
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2014 (incorporated by reference, see
§ 82.168). This method can be used for
refrigerants that are either a liquid or a gas
at room temperature. For all refrigerants, the
sample for water analysis shall be taken from
the liquid phase of the container to be tested.
5.4.2 Limits. The value for water content
shall be expressed in parts per million (ppm)
by weight and shall not exceed the maximum
specified in Tables 1A, 1B, 1C, 2A, 2B, and
3.
5.5 Conductivity. (Alternative to chloride
and acidity tests).
5.5.1 Method. A refrigerant may be tested
for conductivity as an indication of the
presence of acids, metal chlorides, and any
compound that ionizes in water. This
alternative procedure is intended for use
with new or reclaimed refrigerants, however,
significant amounts of oil can interfere with
the test results.
5.5.2 Limits. The value for conductivity
shall be converted to and expressed in ppm
by weight calculated as HCl and shall be
compared with the maximum acidity value
specified (see in Tables 1A, 1B, 1C, 2A, 2B,
and 3). If the conductivity is above this
amount, then the chloride and acidity tests
shall be conducted. If the conductivity is not
greater than this amount, then the chloride
and acidity tests may be omitted.
5.6 Chloride. The refrigerant shall be
tested for chloride as an indication of the
presence of hydrochloric acid and/or metal
chlorides. The referee procedure is intended
for use with new or reclaimed halogenated
refrigerants; however, high boiling residue in
excess of the amounts in Tables 1A, 1B, 1C,
2A, 2B, and 3 can interfere with the test
results.
5.6.1 Method. The test method shall be
that described in 2008 Appendix C to AHRI
Standard 700–2014 (incorporated by
reference, see § 82.168). The test will show
noticeable turbidity at chloride levels of
about 3 ppm or greater by weight.
5.5.2 Limits. The results of the test shall
not exhibit any sign of turbidity. Report the
results as ‘‘pass’’ or ‘‘fail.’’
5.7 Acidity.
5.7.1 Method. The acidity test uses the
titration principle to detect any compound
that is soluble in water and ionizes as an
acid. The test method shall be that described
in 2008 Appendix C to AHRI Standard 700–
2014 (incorporated by reference, see
§ 82.168). This test may not be suitable for
determination of high molecular weight
organic acids; however these acids will be
found in the high boiling residue test
outlined in Section 5.8. The test requires a
50 to 60 gram sample and has a detection
limit of 0.1 ppm by weight calculated as HCl.
5.7.2 Limits. The value for acidity shall be
expressed in ppm by weight as HCl and shall
not exceed the limits in Tables 1A, 1B, 2A,
2B, and 3.
5.8 High Boiling Residue.
5.8.1 Method. High boiling residue shall
be determined by either volume or weight.
The volume method measures the residue
from a standard volume of refrigerant after
evaporation. The gravimetric method is
described in 2008 Appendix C to AHRI
Standard 700–2014 (incorporated by
reference, see § 82.168). Oils and/or organic
acids will be captured by these methods.
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5.8.2 Limits. The value for high boiling
residue shall be expressed as a percentage by
volume or weight and shall not exceed the
maximum percent specified in Tables 1A, 1B,
1C, 2A, 2B, and 3.
5.9 Particulates and Solids.
5.9.1 Method. A measured amount of
sample shall be placed in a Goetz bulb under
controlled temperature conditions. The
particulates/solids shall be determined by
visual examination of the Goetz bulb prior to
the evaporation of refrigerant. For details of
this test method, refer to Part 3 of 2008
Appendix C to AHRI Standard 700–2014
(incorporated by reference, see § 82.168).
Note: R–744 will partially sublimate when
measuring a known amount of liquid sample
into the dry Goetz bulb and the solid R–744
will interfere with the visual examination of
particulates/solids. Determining the
particulates/solids shall be completed by
visual examination of the Goetz bulb after the
evaporation of the refrigerant.
5.9.2 Limits. Visual presence of dirt, rust,
or other particulate contamination is reported
as ‘‘fail.’’
5.10 Non-Condensables.
5.10.1 Method. A vapor phase sample
shall be used for determination of noncondensables. Non-condensable gases consist
primarily of air accumulated in the vapor
phase of refrigerants where the solubility of
air in the refrigerant liquid phase is
extremely low and air is not significant as a
liquid phase contaminant. The presence of
non-condensable gases may reflect poor
quality control in transferring refrigerants to
storage tanks and cylinders.
The test method shall be gas
chromatography with a thermal conductivity
detector as described in 2008 Appendix C to
AHRI Standard 700–2014 (incorporated by
reference, see § 82.168).
5.10.2 Limits. The maximum level of noncondensables in the vapor phase of a test
sample shall not exceed the maximum at 25
°C as shown in Tables 1A, 1B, 1C, 2A, 2B,
and 3.
5.11 All Other Volatile Impurities and/or
Other Refrigerants.
5.11.1 Method. The amount of volatile
impurities including other refrigerants in the
subject refrigerant shall be determined by gas
chromatography as described in 2008
Appendix C to AHRI Standard 700–2014
(incorporated by reference, see § 82.168).
5.11.2 Limits. The test sample shall not
contain more than 0.5 percent by weight of
volatile impurities including other
refrigerants as shown in Tables 1A, 1B, 1C,
2A, 2B and 3.
5.12 Total C3, C4 and C5 Polyolefins in
Hydrocarbon Refrigerants.
5.12.1 Method. The amount of polyolefin
impurities in the hydrocarbon shall be
determined by gas chromatography as
described in GPA Standard 2177–13
(incorporated by reference, see § 82.168).
5.12.2 Limits. The test sample shall not
contain more than 0.05 percent by weight in
the hydrocarbon sample as shown in Tables
1B and 2B. Report the results as ‘‘pass’’ or
‘‘fail.’’
5.13 Sulfur Odor in Hydrocarbon
Refrigerants.
5.13.1 Method. The amount of sulfur
containing compounds or other compounds
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with an odor shall be determined by ASTM
D1296–01 (Reapproved 2012) (incorporated
by reference, see § 82.168).
5.13.2 Limits. The test sample paper shall
not emit a residual sulfur odor as shown in
Tables 1B and 2B.
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Section 6. Reporting Procedure
6.1 Reporting Procedure. The source
(manufacturer, reclaimer, or repackager) of
the packaged refrigerant shall be identified.
The refrigerant shall be identified by its
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accepted refrigerant number and/or its
chemical name. Maximum allowable levels
of contaminants are shown in Tables 1A, 1B,
1C, 2A, 2B, and 3. Test results shall be
tabulated in a similar manner.
BILLING CODE 6560–50–P
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I
Pass or Fail
5.9
Acidity, Maximum
I
ppm by weight
(as HCl)
I
Pass or Fail
5.6
Visually
clean
No visible
turbidity
No visible
turbidity
5.7
Chloride 3
Visually
clean
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ER18NO16.078
Particulates/Solids
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High Boiling Residue, Max.
Particulates/Solids
18NOR5
Acidity, Max.
Chloride3
%by weight
I
5.11
I
0.5
0.5
I
0.5
I
0.5
0.5
I
0.5
I
0.9
%by volume or
%by weight
5.8
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(as HCl)
5.7
Pass or Fail
5.6
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
I
Novisible
turbidity
I
No visible
turbidity
I
No visible
turbidity
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All Other Volatile Impurities, Max.
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Boiling Poine
Boiling Point
Range 1
Critical
Temperature 1
Reference
Section
R-142b
R-143a
R-152a
R-218
R-227ea
R-236fa
R-245fa
R1233zd(E)
R1234yf
R1234ze(E)
R1336mzz(Z)
oc@ 101.3 kPa
N/A
-9.2
-47.2
-24
-36.8
-16.5
-1.4
14.9
18.3
-29.4
-19
33.4
K
N/A
--
± 0.3
± 0.3
± 0.3
--
± 0.3
± 0.3
--
N/A
N/A
N/A
oc
N/A
137.1
72.7
113.3
72
101.7
124.9
154.1
165.6
94.8
109.4
171.3
0-0.01
R-143
N/A
--
--
--
0-0.lea
R-245ca,
R-245cb,
R-245ea,
R-245eb
--
N/A
0.3 R1234ze(Z)
0-0.1
R13 3 6rnzz(E)
%by weight
N/A
Air and Other
Non-condensables,
Max.
%by volume
@25.0 oc
5.10
2
1.5
1.5
1.5
1.5
1.5
N/A2
N/A2
1.5
1.5
N/A2
Water, Maximum
ppm by weight
5.4
15
10
10
10
10
10
20
20
10
10
20
All Other Volatile
Impurities, Max.
%by weight
5.11
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
% by volume or
%by weight
5.8
0.01
0.01
0.01
O.oi
0.01
O.oi
0.01
0.01
0.01
0.01
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(asHCI)
5.7
3
1
1
1
1
1
1
1
1
1
1
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Isomer Content
0-0.lea
R-142,
R-142a
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High Boiling
Residue, Max.
Particulates/Solids
Acidity, Max.
No
No
No
No
No
No
No
No
No visible
No visible
No visible
visible
visible
visible
visible
visible
visible
visible
visible
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
1. Boiling points, boiling point ranges, and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Refprop 9 .1.
2. Since R-11, R-113, R-123, R-141 b, R-245fa, R-1233zd(E), and R-1336mzz(Z) have normal boiling points near or above room temperature, non-condensable determinations are not required for
these refrigerants.
3. Recognized chloride level for pass/fail is about 3 ppm.
--Data Not Available
Chloride3
Pass or Fail
5.6
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Table lA. Single Component Fluorocarbon Refrigerants and their Allowable Levels of Contaminants (continued)
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Boiling Point 1
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Boiling Point Range 1
Minimum Nominal
Composition
Other Allowable
Impurities
R-50
R-170
R-E170
R-290
R-600
R-600a
R-601
R-601a
R-610
R-1150
R-1270
-161.5
-88.6
-24.8
-42.1
-0.5
-11.8
36.1
27.8
34.6
-103.8
-47.6
K
± 0.5
±0.5
±0.5
± 0.5
± 0.5
±0.5
±0.5
± 0.5
± 0.5
±0.5
±0.5
%weight
99.5
99.5
99.5
99.5
99.5
99.5
99.5
99.5
99.5
99.5
99.5
%weight
N/A
N/A
N/A
2 (see
footnote2 )
2 (see
footnote 2 )
2 (see
footnote 2 )
0-1
R-60la
0-1
R-601
N/A
N/A
0-1
R-290
oc at 101.3
kPa
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Table lB. Single Component Hydrocarbon Refrigerants and their Allowable Levels of Contaminants
Reporting
Units
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NIA
I
NIA
I
R-22/
152a/124
R-22/
152a/124
R-125/
290/22
R-125/
290/22
R-290/
22/218
R-290/
22/218
R-125/
143a/134a
R-22/152a/
142b/C318
Nominal Composition
I
%by weight
I
NIA
I
53.0113.0/
34.0
61.0111.0/
28.0
60.0/2.0/
38.0
38.0/2.0/60.0
5.0175.01
20.0
5.0156.01
39.0
44.0/52.0/
4.0
45.0/7.0/5.5/42.5
Allowable Composition
I
%by weight
I
NIA
I
51.0-55.0/
11.5-13.5/
33.0-35.0
59.0-63.0/
9.5-11.5/
27.0-29.0
58.0-62.0/
1.0-2.1/
36.0-40.0
36.0-40.0/
1.0-2.1/
58.0-62.0
3.0-5.2/
73.0-77.0/
18.0-22.0
3.0-5.2/
54.0-58.0/
37.0-41.0
42.0-46.0/
51.0-53.0/
2.0-6.0
43.0-47.0/
6.0-8.0/
4.5-6.5/ 40.5-44.5
5.8
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(as HCI)
5.7
1
1
1
1
1
1
1
1
Pass or Fail
5.6
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
Fmt 4701
I
Sfmt 4725
E:\FR\FM\18NOR5.SGM
High Boiling Residue,
Max.
Particulates/Solids
18NOR5
Acidity, Max.
Chloride2
ER18NO16.082
I %by volume or
%by weight
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Refrigerant Components
mstockstill on DSK3G9T082PROD with RULES5
VerDate Sep<11>2014
Jkt 241001
PO 00000
Frm 00103
NIA
I
NIA
I
R-22/600a/
142b
R-32/
125/134a
R-32/
125/134a
R-32/
125/134a
R-32/
125/134a
R-32/
125/134a
R-32/
125/134a
R-32/
125/134a
R-125/
143a/22
Nominal Composition
I
%by weight
I
NIA
I
55.014.0141
.0
20.0/40.0/
40.0
10.0170.0/
20.0
23.0/25.0/
52.0
15.0115.0/
70.0
25.0/15.0/
60.0
30.0130.01
40.0
2.5/2.5/95.0
7.0/46.0/47.
0
Allowable Composition
I
%by weight
I
NIA
I
53.0-57.0/
3.0-5.0/
40.0-42.0
18.0-22.0/
38.0-42.0/
38.0-42.0
8.0-12.0/
68.0-72.0/
18.0-22.0
21.0-25.0/
23.0-27.0/
50.0-54.0
13.0-17.0/
13.0-17.0/
68.0-72.0
23.0-27.0/
13.0-17.0/
58.0-62.0
28.0-32.0/
28.0-32.0/
38.0-42.0
2.0-3.0/
2.0-3.0/
94.0-96.0
5.0-9.0/
45.0-47.0/
45.0-49.0
%by weight
I
5.11
I
0.5
0.5
0.5
%by volume or
%by weight
1
5.8
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Pass or Fail
I
5.9
I
I
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
1
1
1
1
1
1
1
1
1
I
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
Fmt 4701
I
Sfmt 4725
E:\FR\FM\18NOR5.SGM
All Other Volatile
Impurities, Max.
High Boiling Residue,
Max.
18NOR5
Particulates/Solids
Chloride2
I
I
Pass or Fail
I
5.6
I
0.5
I
0.5
I
0.5
I
0.5
I
I
0.5
I
0.5
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Refrigerant Components
82373
ER18NO16.083
mstockstill on DSK3G9T082PROD with RULES5
82374
VerDate Sep<11>2014
Jkt 241001
R-22/
124/142b
R-32/125
R-32/125
R-1270/
22/152a
R-1270/
22/152a
R-22/218/
142b
R-218/
134a/600a
6o.o!25.o!
15.0
65.0/25.0/
10.0
50.0/50.0
45.0/55.0
1.5/87.5
111.0
3.0/94.0/
3.0
70.0/5.0/
25.0
9.0/88.0/3.0
58.0-62.0/
23.0-27.01
14.0-16.0
63.0-67.0/
23.0-27.0/
9.0-11.0
48.5-50.5/
49.5-51.5
44.0-46.0/
54.0-56.0
0.5-1.5/
87.5-89.5/
I 0.0-11.0
2.0-3.0/
94.0-96.0/
2.0-3.0
68.0-72.0/
3.0-7.0/
24.0-26.0
8.0-10.0/
86.0-90.0/
2.0-3.0
5.8
0.01
O.oi
0.01
0.01
0.01
0.01
0.01
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
I
ppm by weight
(as HCl)
5.7
I
Pass or Fail
5.6
Frm 00104
I
N/A
Nominal Composition
I
%by weight
I
N/A
Allowable Composition
I
%by weight
I
N/A
High Boiling Residue, Max.
%by weight
Particulates/Solids
I
I
Acidity, Max.
I
I
1
Fmt 4701
N/A
Chloride2
PO 00000
I
Sfmt 4725
E:\FR\FM\18NOR5.SGM
18NOR5
ER18NO16.084
/\I
U.J
Y'V.I.\.I..I.J.J.V
'V.I.
I No visible I
turbidity
No visible
turbidity
I No visible I
turbidity
No visible
turbidity
I
No visible
turbidity
I No visible I
turbidity
No visible
turbidity
I
No visible
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
R-22/
1241142b
Refrigerant Components
mstockstill on DSK3G9T082PROD with RULES5
VerDate Sep<11>2014
Jkt 241001
PO 00000
Nominal Composition
Frm 00105
N/A
I
N/A
I
R-22/124/
600a/142b
R-22/124/
600a/142b
R-22/152a
R-22/152a
R-134a/
124/600
R-125/
134a/600
R-125/
134a/600
%by weight
I
N/A
I
51.0/28.5/
4.0/16.5
50.0/39.0/
1.5/9.5
82.0/18.0
25.0175.0
59.0/39.5/1.5
46.6/50.0/3.4
79.0/18.3/2.7
48.0-52.0/
37.0-41.0/
1.0-2.0/
8.5-10.0
I
81.0-83.0/
17.0-19.0
24.0-26.0/
74.0-76.0
I
58.0-59.5/
39.0-40.5/
1.3-1.6
I
45.5-47.7/
49.0-51.0/
3.0-3.5
78.0-80.0/
17.3-19.3/
2.2-2.8
0.5
I
I
0.5
I
0.5
0.5
%by weight
I
N/A
I
All Other Volatile Impurities,
Max.
%by weight
I
5.11
I
0.5
I
I
Fmt 4701
Allowable Composition
49.0-53.0/
26.5-30.5/
3.5-4.5/
15.5-17.0
Sfmt 4725
E:\FR\FM\18NOR5.SGM
High Boiling Residue, Max.
18NOR5
Particulates/Solids
Acidity, Max.
Chloride2
I
0.5
I
0.5
%by volume or
%by weight
5.8
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(as HC1)
5.7
Pass or Fail
5.6
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
I
No visible
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Refrigerant Components
82375
ER18NO16.085
mstockstill on DSK3G9T082PROD with RULES5
82376
VerDate Sep<11>2014
Jkt 241001
PO 00000
Frm 00106
I
N/A
I
N/A
Nominal Composition
I
%by weight
I
N/A
Allowable Composition
I
%by weight
I
N/A
1
%by weight
I
5.11
I
I
I
R-125/
134a!6oo
19.5!78.8/
1.7
18.5-20.5/
77.8-79.81
1.2-1.8
R-125/
134a/
E170
77.0/19.0/
4.0
76.0-78.0/
18.0-20.0/
3.0-5.0
R-290/
22/152a
1.5/96.0/
2.5
1.0-2.0/
95.0-97.0/
2.0-3.0
R-125/
134a/E17
0
48.5/48.0/
3.5
47.5-49.5/
47.0-49.0/
3.0-4.0
R-134a/
142b
R-125/
134a
R-125/
134a
88.0112.0
58.0/42.0
85.0/15.0
88.0-89.0/
11.0-12.0
57.0-59.0/
41.0-43.0
R-125/
134a/600a
84.0-86.0/
14.0-16.0
R-125/
134a/600a
85.1/11.5/
3.4
84.1-86.1/
10.5-12.5/
3.0-3.5
55.0/42.0/
3.0
54.0-56.0/
41.0-43.0/
2.5-3.1
Fmt 4701
Sfmt 4725
E:\FR\FM\18NOR5.SGM
All Other Volatile Impurities,
Max.
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
% by volume or
%by weight
High Boiling Residue, Max.
5.8
O.ol
O.ol
O.ol
O.ol
O.ol
0.01
O.ol
O.ol
O.ol
Visually
clean
Visually
clean
Visually
Clean
Visually
clean
Visually
clean
Visually
Clean
Visually
clean
Visually
clean
Visually
clean
18NOR5
Particulates/Solids
I
Pass or Fail
5.9
Acidity, Max.
I
ppm by weight
(as HCl)
5.7
Chloride2
ER18NO16.086
0.5
I
Pass or Fail
5.6
I No visible I No visible I No visible I No visible I No visible I No visible I No visible I No visible I No visible
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Refrigerant Components
mstockstill on DSK3G9T082PROD with RULES5
VerDate Sep<11>2014
Jkt 241001
PO 00000
Nominal Composition
Frm 00107
Allowable
Composition
I
N/A
I
%by weight
I
%by weight
I
N/A
I
I
N/A
I
I
N/A
I
Fmt 4701
Sfmt 4725
R-125/
134a/600a
R-125/
134a/600a
R-125/
134a/600a
R-134a/
227ea
R-125/
134a/600a/
600/601a
R-32!134a/
227ea
R125/134a/
600/601a
R-32/125/
143a/134a
R-125!143a/
290/600a
82.0115.01
3.0
65.1/30.5/
3.4
58.0/39.3/
2.7
52.5/47.5
50.5/47.0/
0.9/1.0/0.6
18.5/69.5/
12.0
5.1193.0/
1.3/0.6
15.0/25.0/
10.0/50.0
77.5/20.0/
0.6/1.9
81.0-83.0/
14.0-16.0/
2.5-3.1
64.0-66.0/
30.5-32.5/
3.0-3.5
57.0-59.0/
38.0-41.0/
2.5-3.0
51.5-53.5/
46.5-48.5
49.5-51.5/
46.0-48.0/
0.7-1.0/
0.8-1.1/
0.4-0.7
18.0-19.0/
69.0-70.0/
11.5-12.5
4.1-6.1/
92.0-94.0/
1.1-1.4/
0.4-0.7
13.0-17.0/
23.0-27.0/
8.0-12.0/
48.0-52.0
76.5-78.5/
19.0-21.0/
0.4-0.7/
1.7-2.0
-45.3
-43.2
-41.8
-24.2
-39.1
I
-38.1
I
-28.5
I
-43
I
-48.3
-33.3
I
-31.3
I
-26.7
I
-36.3
I
-47.5
I
69
Bubble Point1
oc@ 101.3 kPa
DewPoint1
ac@ 101.3 kPa
I
I
oc
I
N/A
I
76.1
%by weight
I
5.11
I
0.5
I
5.8
I
5.6
I 0.01
I No visible
Critical
Temperature 1
N/A
N/A
I
I
-42.3
I
-36.4
I
-23.5
I
I
I
79.6
I
82.2
I
99
I
87.5
I
93.9
I
100.2
I
85.3
I
0.5
0.5
0.5
I
0.5
I
0.5
I
0.5
I
0.5
0.5
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
E:\FR\FM\18NOR5.SGM
-38.4
18NOR5
l.l
UllLlV"' .lV..LaA.
High Boiling Residue,
Max.
Chloride2
% by volume or
%by weight
Pass or Fail
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Refrigerant
Components
82377
ER18NO16.087
mstockstill on DSK3G9T082PROD with RULES5
82378
VerDate Sep<11>2014
PO 00000
Nominal
Composition
Frm 00108
Jkt 241001
Refrigerant
Components
Allowable
Composition
I
N/A
I
%by weight
I
%by weight
I
N/A
R-E170/
152a/600a
I
N/A
60.0/10.0/
30.0
N/A
59.0-61.0/
9.0-11.0/
29 0-310
I
0
I
I
R-152a/
600a
I R290/152a
76.0/24.0
I
71.0/29.0
R-125/
1143a/134a/
600a
I
R-E170/
152a
80.0/20.0
I 75.0-77.0/ I 70.0-72.0/ I 62.2-64.2/
17.0-19.0/
23.0-25.0
28.0-30.0
15.0-17.0/
2.6-2.9
0
19.5/78.5/
1.4/0.6
79.0-81.0/
19.0-21.0
63.2/18.0/
16.0/2.8
R-125/
134a/600
/601
17.7-20.0/
77.8-80.0/
1.2-1.5/
0.4-0.7
R-32/125/
134a/600
/601a
8.5/45.0/
44.2/1.7/
0.6
7.0-9.
43.5-46.5/
42.7-45.7/
1.5-1.8/
I
I
R-32/125/
600
a
50/47.0/
3.0
I
I
I 49.0-51.0/ I
46.0-48.0/
2.5-3.5
R-290/
134a/152a
0.6/1.6/97.8
0.5-0.7/
1.0-2.2/
97.3-98.3
Fmt 4701
Sfmt 4725
E:\FR\FM\18NOR5.SGM
All Other Volatile
Impurities, Max.
High Boiling
Residue, Max.
18NOR5
Particulates/Solids
Acidity, Max.
Chloride2
ER18NO16.088
%by weight
I
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
0.01
0.01
I
0.01
Visually
clean
Visually
clean
Visually
clean
I
Visually clean
1
1
1
1
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
0.5
I
5.11
0.5
0.5
%by volume or
%by weight
5.8
O.oi
0.01
0.01
O.oi
O.oi
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(as HC1)
5.7
1
1
1
1
Pass or Fail
5.6
No visible
turbidity
No visible
turbidity
No visible
turbidity
No visible
turbidity
I
0.5
I
I
I
No visible
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Table 2A. Zeotropic Blends (400 Series Refrigerants) and their Allowable Levels of Contaminants (continued)
mstockstill on DSK3G9T082PROD with RULES5
VerDate Sep<11>2014
Jkt 241001
I ·S·~~:-..~~ I
ec wn
R-442A
R-321125/
134a/152a/
227ea
PO 00000
Refrigerant
Components
N/A
N/A
Nominal
Composition
%by weight
N/A
Frm 00109
Allowable
Composition
%by weight
All Other Volatile
Impurities, Max.
%by weight
I
I
R-444B
I
R-445A
I
R-446A
I
R-447A
R-32/152a/
1234ze(E)
R-744/
134a/
1234ze(E)
R-32/
1234ze(E)/
600
41.5110.0/
48.5
6.019.01
85.0
68.0/29.0/
3.0
5.0-7.0/
8.0-10.0/
83.0-87.0
67.0-68.5/
28.4-31.0/
2.0-3.1
R-448A
I
R-321125/
1234yf/
134a/
1234ze(E)
26.0/26.0/
20.0/21.0/
7.0
24.0-26.5/
25.5-28.0/
18.0-20.5/
20.0-23.0/
68.0/3.5/
28.5
40.5-42.5/
9.0-11.0/
47.5-49.5
I
R-32/
125/
1234ze (E)
11.0-13.0/
4.0-6.0/
81.0-85.0
"l-C' '] -C'/
R-32/152a/
1234ze(E)
12.0/5.0/
83.0
31.0/31.0/
30.0/3.0/
5.0
30.0-32.0/
30.0-32.0/
29.0-31.0/
N/A
R-444A
67.5-69.5/
3.0-5.0/
27.5-29.5
R-449A
I
R-449B
R-32/125/
1234yfl
134a
R-32/125/
1234yf/134a
24.3/24.7/
25.3/25.7
25.2/24.3/
23.2/27.3
23.3-24.5/
24.5-25.7/
24.3-25.5/
25.5-26.7
23.7-25.5/
24.0-25.8/
21.7-23.5/
27.0-28.8
Fmt 4701
Sfmt 4725
E:\FR\FM\18NOR5.SGM
High Boiling
Residue, Max.
18NOR5
Particulates/Solids
Acidity, Max.
I
5.11
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
0.5
%by volume or
%by weight
5.8
0.01
0.01
0.01
O.ot
0.01
0.01
O.ot
0.01
O.ot
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(as HC1)
5.7
1
1
1
1
N/A
1
1
1
1
No visible
No visible
No visible
No visible
No visible
No visible
No visible
No visible
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
1. Bubble points, dew points, and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Refprop 9 .1.
2. Recognized chloride level for pass/fail is about 3 ppm.
Chloride2
I
Pass or Fail
5.6
No visible
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Reporting Units
82379
ER18NO16.089
mstockstill on DSK3G9T082PROD with RULES5
82380
VerDate Sep<11>2014
Reporting Units
1
..--
·s·-~:-
ec1on
1
R-450A
I
R-451A
I
R-451B
I
R-452A
I
R-453A
I
R-454A
I
R-454B
I
R-455A
Jkt 241001
PO 00000
Frm 00110
N/A
N/A
R-134a/
1234ze(E)
R-1234yf/
134a
R-1234yf/
134a
R-32/125/
1234yf
R-32/125/
134a/227e/600/60 1a
R-32/
1234yf
R-32/
1234yf
R-744/32/
1234yf
Nominal
Composition
%by weight
N/A
42.0/58.0
89.8110.2
88.8/11.2
11.0/59.0/
30.0
20.0/20.0/53.8/
5.0/0.6/0.6
35.0/65.0
68.9/31.1
3.0121.5/
75.5
Allowable
Composition
%by weight
N/A
40.0-44.0/
56.0-60.0
89.6-90.0/
10.0-10.4
88.6-89.0/
11.0-11.4
9.3-12.7/
57.2-60.8/
29.0-30.1
19.0-21.0/19.0-21.0/
52.8-54.8/4.5-5.5/
0.4-0.7/0.4-0. 7
33.0-37.0/
63.0-67.0
67.9-69.9/
30.1-32.1
2.0-5.0/
19.5-22.5/
73.5-77.5
All Other Volatile
Impurities, Max.
%by weight
Fmt 4701
Refrigerant
Components
Sfmt 4725
E:\FR\FM\18NOR5.SGM
High Boiling
Residue, Max.
Particulates/Solids
18NOR5
Acidity, Max.
5.11
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
I
0.5
%by volume or
%by weight
5.8
O.oi
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually clean
Visually
clean
Visually clean
Visually
clean
Visually
clean
Visually
clean
ppm by weight
(as HC1)
5.7
1
1
1
1
N/A
1
1
1
No visible
No visible
No visible
No visible
No visible
No visible
No visible
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
1. Bubble points, dew points, and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Refprop 9.1.
2. Recognized chloride level for pass/fail is about 3 ppm.
Chloride2
ER18NO16.090
I
Pass or Fail
5.6
No visible
turbidity
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
I
mstockstill on DSK3G9T082PROD with RULES5
VerDate Sep<11>2014
R-443A
R-290/600a I R-290/600a
R-170/
290/600a/600
R-1270/
290/600a
I
3.1/54.8/6.0/36.1
55.0/40.0/5.0
0.5
0.5
0.05
0.05
No visible
No visible
No visible
No visible
No visible
No visible
N/A
turbidity
turbidity
turbidity
turbidity
turbidity
turbidity
1. Bubble points, dew points, and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Refprop 9.1.
2. Taken from vapor phase
3. Vaporized from liquid phase
and
N/A
N/A
R-1279/El70
R-1270/290
%by weight
Jkt 241001
N/A
N/A
80.0/20.0
30.0170.0
R-1270/290 I R-1270/290
5.0195.0
I
25.0/75.0
56.0/44.0
52.0/48.0
PO 00000
Frm 00111
Fmt 4701
Sfmt 4725
E:\FR\FM\18NOR5.SGM
%by weight
18NOR5
Chloride2
Pass or Fail
5.12
5.6
0.05
0.05
0.05
0.05
0.05
0.05
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
R-441A
82381
ER18NO16.091
mstockstill on DSK3G9T082PROD with RULES5
82382
Jkt 241001
%by weight
PO 00000
%by weight
"
N/A
N/A
N/A
I
5.11
73.8/26.2
I
74.8/
I
0.5
48.8/51.2
I
52.8/
I
0.5
.L"'-
R-23/13
40.1/59.9
I
41.0/
I
0.5
.........,
R-23/116
143a
50.0/50.0
I
51.5/
I
0.5
39.0/61.0
R-23/116
R-22/218
46.0/54.0
I
41.0/
I
0.5
0.5
48.0/
600a
44.0/56.0
I
46.0/
I
0.5
88.o112.o
I
87.588.5/
11.5-
I
0.5
I
I
El70
95.0/5.0
'>''f.U-
I .96.0/
","
I
I
I
152a
5.0/95.0
I
J.Ha
I 56.0/44.0
4.0-6.0/
94.0-96.0
Frm 00112
I
R-22/115
12/152a
Fmt 4701
Sfmt 4700
E:\FR\FM\18NOR5.SGM
Volatile
Impurities,
Max.
High Boiling
Residue, Max.
%by weight
I
0.5
0.5
I
0.5
18NOR5
% by volume or
%by weight
5.8
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Particulates/
Solids
Pass or Fail
5.9
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Visually
clean
Acidity, Max.
ppm by weight
5.7
1
1
1
1
5.6
No
visible
No
visible
No
visible
1
No
visible
1
No
visible
1
No
visible
1
No
visible
1
No
visible
1
No
visible
No
visible
1
No
visible
Chloride2
ER18NO16.092
I
Pass or Fail
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
BILLING CODE 6560–50–C
VerDate Sep<11>2014
N/A
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
Section 7.0 References—Normative
Listed here are all standards, handbooks,
and other publications essential to the
formation and implementation of the
standard. All references in this appendix are
considered as part of this standard.
ANSI/ASHRAE Standard 34–2013,
Designation and Safety Classification of
Refrigerants, with Addenda, American
National Standards Institute/American
Society of Heating, Refrigerating, and
Air-Conditioning Engineers.
2008 Appendix C to AHRI Standard 700–
2014, 2008 Appendix C for Analytical
Procedures for AHRI Standard 700–
2014—Normative, copyright 2008
(incorporated by reference, see § 82.168).
ASTM D1296–01 (Reapproved 2012),
Standard Test Method for Odor of
Volatile Solvents and Diluents, approved
July 1, 2012, (incorporated by reference,
see § 82.168).
BB–F–1421B, Federal Specification for
‘‘Fluorocarbon Refrigerants,’’ dated
March 5, 1982, (incorporated by
reference, see § 82.168).
GPA Standard 2177–13, Analysis of Natural
Gas Liquid Mixtures Containing Nitrogen
and Carbon Dioxide by Gas
Chromatography, Revised, copyright
2013, (incorporated by reference, see
§ 82.168).
REFPROP Reference Fluid Thermodynamic
and Transport Properties NIST Standard
Reference Database 23 version 9.1, 2013,
U.S. Department of Commerce,
Technology Administration, National
Institute of Standards and Technology.
Section 8.0 References—Informative
Listed here are standards, handbooks, and
other publications which may provide useful
information and background but are not
considered essential.
2012 Appendix D to AHRI Standard 700–
2014, 2012 Appendix D for Gas
Chromatograms for AHRI Standard 700–
2014—Informative, copyright 2012,
(incorporated by reference, see § 82.168).
16. Amend subpart F by adding
appendix B3 to read as follows:
■
Appendix B3 to Subpart F of Part 82—
Performance of Refrigerant Recovery,
Recycling, and/or Reclaim Equipment
mstockstill on DSK3G9T082PROD with RULES5
This appendix is based on the AirConditioning, Heating, and Refrigeration
Institute Standard 740–2016, Performance
Rating of Refrigerant Recovery Equipment
and Recovery/Recycling Equipment.
Section 1. Purpose
1.1 The purpose of this standard is to
establish methods of testing for rating and
evaluating the performance of refrigerant
recovery, and/or recycling equipment and
general equipment requirements (herein
referred to as ‘‘equipment’’) for contaminant
or purity levels, capacity, speed and purge
loss to minimize emission into the
atmosphere of designated refrigerants.
Section 2. Scope
2.1 This standard applies to equipment
for recovering and/or recycling single
VerDate Sep<11>2014
23:27 Nov 17, 2016
Jkt 241001
refrigerants, azeotropes, zeotropic blends,
and their normal contaminants from
refrigerant systems. This standard defines the
test apparatus, test gas mixtures, sampling
procedures and analytical techniques that
will be used to determine the performance of
refrigerant recovery and/or recycling
equipment (hereinafter, ‘‘equipment’’).
Appendix B4 of this subpart establishes
standards for recovery/recycling equipment
used with flammable refrigerants.
Section 3. Definitions
3.1 Definitions. All terms in this
appendix will follow the definitions in
§ 82.152 unless otherwise defined in this
appendix.
3.2 Clearing Refrigerant. Procedures used
to remove trapped refrigerant(s) from
equipment before switching from one
refrigerant to another.
3.3 High Temperature Vapor Recovery
Rate. For equipment having at least one
designated refrigerant (see Section 11.2 of
this appendix) with a boiling point in the
range of ¥50 to +10 °C, the rate will be
measured for R–22, or the lowest boiling
point refrigerant if R–22 is not a designated
refrigerant.
3.4 Published Ratings. A statement of the
assigned values of those performance
characteristics, under stated rating
conditions, by which a unit may be chosen
to fit its application. These values apply to
all units of like nominal size and type
(identification) produced by the same
manufacturer. As used herein, the term
‘‘published rating’’ includes the rating of all
performance characteristics shown on the
unit or published in specifications,
advertising, or other literature controlled by
the manufacturer, at stated rating conditions.
3.5 Push/Pull Liquid Recovery. The push/
pull refrigerant recovery method is defined as
the process of transferring liquid refrigerant
from a refrigeration system to a receiving
vessel by lowering the pressure in the vessel
and raising the pressure in the system, and
by connecting a separate line between the
system liquid port and the receiving vessel.
3.6 Recycle Flow Rate. The amount of
refrigerant processed divided by the time
elapsed in the recycling mode. For
equipment which uses a separate recycling
sequence, the recycle rate does not include
the recovery rate (or elapsed time). For
equipment which does not use a separate
recycling sequence, the recycle rate is a rate
based solely on the higher of the liquid or
vapor recovery rate, by which the
contaminant levels were measured.
3.7 Residual Trapped Refrigerant.
Refrigerant remaining in equipment after
clearing refrigerant.
3.8 Shall, Should, Recommended or It Is
Recommended shall be interpreted as
follows:
3.8.1 Shall. Where ‘‘shall’’ or ‘‘shall not’’
is used for a provision specified, that
provision is mandatory if compliance with
this appendix is claimed.
3.8.2 Should, Recommended or It Is
Recommended is used to indicate provisions
which are not mandatory but which are
desirable as good practice.
3.9 Standard Contaminated Refrigerant
Sample. A mixture of new or reclaimed
PO 00000
Frm 00113
Fmt 4701
Sfmt 4700
82383
refrigerant and specified quantities of
identified contaminants which constitute the
mixture to be processed by the equipment
under test. These contaminant levels are
expected only from severe service conditions.
3.10 Trapped Refrigerant. The amount of
refrigerant remaining in the equipment after
the recovery or recovery/recycling operation
but before clearing refrigerant.
3.11 Vapor Recovery Rate. The average
rate that refrigerant is withdrawn from the
mixing chamber between two pressures as
vapor recovery rate is changing depending on
the pressure. The initial condition is vapor
only at saturation pressure and temperature
at either 24 °C or at the boiling point at 100
kPa, whichever is higher. The final pressure
condition is 10 percent of the initial pressure,
but not lower than the equipment final
recovery vacuum and not higher than 100
kPa.
Section 4. General Equipment Requirements
4.1 Equipment Information. The
equipment manufacturer shall provide
operating instructions, necessary
maintenance procedures, and source
information for replacement parts and repair.
4.2 Filter Replacement. The equipment
shall indicate when any filter/drier(s) needs
replacement. This requirement can be met by
use of a moisture transducer and indicator
light, by use of a sight glass/moisture
indicator, or by some measurement of the
amount of refrigerant processed such as a
flow meter or hour meter. The equipment
manufacturer must provide maximum
quantity recycled or filter change interval in
its written instructions.
4.3 Purge of Non-Condensable. If noncondensables are purged, the equipment
shall either automatically purge noncondensables or provide an indicating means
to guide the purge process. Recycling
equipment must provide purge means.
4.4 Purge Loss. The total refrigerant loss
due to purging non-condensables, draining
oil, and clearing refrigerant (see Section 9.5)
shall be less than 3 percent (by weight) of
total processed refrigerant.
4.5 Permeation Rate. High pressure hose
assemblies 5⁄8 in. (16 mm) nominal and
smaller shall not exceed a permeation rate of
3.9 g/cm2/yr (internal surface) at a
temperature of 48.8 °C. Hose assemblies that
UL recognized as having passed UL 1963,
2011 requirements shall be accepted without
testing. See Section 7.1.4 of this appendix.
4.6 Clearing Trapped Refrigerant. For
equipment rated for more than one
refrigerant, the manufacturer shall provide a
method and instructions which will
accomplish connections and clearing within
15 minutes. Special equipment, other than a
vacuum pump or manifold gauge set, shall be
furnished. The clearing procedure shall not
rely upon the storage cylinder below
saturated pressure conditions at ambient
temperature.
4.7 Temperature. The equipment shall be
evaluated at 24 °C with additional limited
evaluation at 40 °C. Normal operating
conditions range from 10 °C to 40 °C.
4.8 Exemptions. Equipment intended for
recovery only shall be exempt from Sections
4.2 and 4.3.
E:\FR\FM\18NOR5.SGM
18NOR5
82384
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
Section 5. Contaminated Refrigerants
mstockstill on DSK3G9T082PROD with RULES5
5.1 Sample Characteristics. The standard
contaminated refrigerant sample shall have
the characteristics specified in Table 1,
VerDate Sep<11>2014
23:27 Nov 17, 2016
Jkt 241001
except as provided in Section 5.2 of this
appendix. Testing shall be conducted at an
ambient temperature of 24 °C ± 1 °C except
high temperature vapor recovery shall be
40 °C ± 1 °C.
PO 00000
Frm 00114
Fmt 4701
Sfmt 4700
5.2 Recovery-only Testing. Recovery
equipment not rated for removal of
contaminants shall be tested with new or
reclaimed refrigerant.
BILLING CODE 6560–50–P
E:\FR\FM\18NOR5.SGM
18NOR5
mstockstill on DSK3G9T082PROD with RULES5
VerDate Sep<11>2014
-
Jkt 241001
PO 00000
Moisture Content: ppm by
Weight of Pure Refrigerant
!Particulate Content: ppm by
Weight of Pure Refrigerane
~cid Content: ppm by
Weight of Pure Refrigerant2
Oil (HBR) Content: % by
Weight of Pure Refrigerant
Frm 00115
Viscosity/Type 3
~on-Condensable Gases
(Air Content):% by Volume
R-12
R-13
R-22
R-23
R-113
R-114
R-123
100
80
30
200
30
100
85
200
200
200
200
200
30
200
200
200
80
80
N/A
80
N/A
80
80
80
80
80
80
80
N/A
80
80
80
100
200
N/A
100
N/A
100
100
100
100
100
200
100
N/A
100
100
100
20
5
N/A
5
N/A
20
20
20
5
5
5
5
N/A
5
5
5
300/MO
N/A
3
3
300/MO 150/MO N/A
N/A
3
3
R-124 R-134a R-500
R-502
R-503 R-401A R-401B R-402A
R-11
300/MO 300/MO 300/MO 150/MO 150/MO 150/MO 150/MO
N/A
3
N/A
3
3
3
N/A
150/AB 150/AB 150/AB
3
3
3
3
3
Fmt 4701
Table 1 (continued) - Standard Contaminated Refrigerant Samples
-
Sfmt 4700
RRR- R-507 RRRRRRRRRRRRRRRR508A 508B
402B 404A 406A 407A 407B 407C 407D 408A 409A 410A 410B 411A 411B 417C 419B 422E 445A
E:\FR\FM\18NOR5.SGM
18NOR5
!Moisture Content: ppm by
200 200 200 200 200 200 200 200 200 200 200 200 200
Weight of Pure Refrigerant
!Particulate Content: ppm by
80
80
80
80
80
80
80
80
80
80
80
80
80
Weight of Pure Refrigerane
~cid Content: ppm by
100
100 200 100 100 100 100 100 100 100 100 100 100
Weight of Pure Refrigerant 2
Oil (HBR) Content: % by
5
5
5
5
5
5
5
5
5
5
5
5
5
Weight of Pure Refrigerant
150/A 150/P 150/A 150/P 150/P 150/P 150/P 150/M 150/M 150/P 150/P 150/M 150/M
Viscosity/Type 3
0
0
OE
OE
0
0
B
OE
B
OE
OE
OE
OE
~on-Condensable Gases
3
3
3
3
3
3
3
3
3
3
3
3
3
(Air Content):% by Volume
Particulate content shall consist of inert materials and shall comply with particulate requirements in Appendix B.
2 Acid consists of 60% oleic acid and 40% hydrochloric acid on a total number basis.
3 POE= Polyoester, AB = Alkylbenzene, MO =Mineral Oil.
4 N/A means not applicable.
200
200
200
200
200
20
20
80
80
80
80
80
NA
NA
100
100
100
100
100
NA
NA
5
5
5
5
5
NA
NA
150/P 150/P 150/P 150/P 150/P
NA
OE
OE
OE
OE
OE
NA
3
3
3
3
3
3
3
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
23:27 Nov 17, 2016
Table 1- Standard Contaminated Refrigerant Samples
82385
ER18NO16.093
82386
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
at an evaporating temperature of 21 °C ± 2
°C.
6.2.4 Alternative Vapor Feed. An
alternative method for vapor feed shall be to
pass the refrigerant through a boiler and then
through an automatic pressure regulating
valve set at different saturation pressures,
moving from saturated pressure at 24 °C to
final pressure of recovery.
6.2.5 Liquid Feed. Liquid refrigerant feed
consisting of control valves, sampling port,
and piping.
6.2.6 Instrumentation. Instrumentation
capable of measuring weight, temperature,
pressure, and refrigerant loss, as required.
6.3 Size. The size of the mixing chamber
and filling storage cylinder used during
testing shall correspond to the size of the
equipment being tested per Section 6.3.1 or
6.3.2:
6.3.1 For equipment utilizing nominal 1⁄4″
or 3⁄8″ flare ports and hoses, the mixing
chamber shall be 0.09 m3 and all ports,
valves, mixing valves, and piping shall be 1⁄2″
or larger, reduced down to the port size of
the equipment by fittings at the connection
ports of the mixing chamber. The filling
storage cylinder used during testing shall be
a nominal 50-pound water capacity DOT 4Bx
cylinder with 1⁄4″ flare liquid and vapor
ports.
6.3.2 For equipment utilizing 1⁄2″ or larger
flare ports and hoses, the mixing chamber
shall be 0.45 m3 (or nominal 1000-pound
water capacity DOT 4Bx cylinder) and all
ports, valves, mixing valves, and piping shall
be 11⁄2″ or larger, reduced down to the port
size of the equipment by fittings at the
connection ports of the mixing chamber. The
filling storage cylinder used during testing
shall be a nominal 1000-pound water
capacity DOT 4Bx cylinder with liquid and
vapor ports, valves and piping sized 3⁄4″ NPT
and reduced or increased to the port size of
the equipment by fittings at the connection
ports of the filling storage cylinder.
6.4 System Dependent Equipment Test
Apparatus. This test apparatus is to be used
for final recovery vacuum rating of all system
dependent equipment.
6.4.1 Test Setup. The test apparatus
shown in Figure 2 consists of a complete
refrigeration system. The manufacturer shall
identify the refrigerants to be tested. The test
apparatus can be modified to facilitate
operation or testing of the system dependent
equipment if the modifications to the
mstockstill on DSK3G9T082PROD with RULES5
Section 6. Test Apparatus
VerDate Sep<11>2014
23:27 Nov 17, 2016
Jkt 241001
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Sfmt 4700
E:\FR\FM\18NOR5.SGM
18NOR5
ER18NO16.094
6.1 General Recommendations. The
recommended test apparatus is described in
the following paragraphs. If alternate test
apparatus are employed, the user shall be
able to demonstrate that they produce results
equivalent to the specified reference
apparatus.
6.2 Self-Contained Equipment Test
Apparatus. The apparatus, shown in Figure
1, shall consist of:
6.2.1 Mixing Chamber. A mixing chamber
consisting of a tank with a conical-shaped
bottom, a bottom port and piping for
delivering refrigerant to the equipment,
various ports and valves for adding
refrigerant to the chamber, and stirring means
for mixing.
6.2.2 Filling Storage Cylinder. The storage
cylinder to be filled by the refrigerant
transferred shall be cleaned and at the
pressure of the recovered refrigerant at the
beginning of the test. It will not be filled over
80 percent, by volume.
6.2.3 Vapor Feed. Vapor refrigerant feed
consisting of evaporator, control valves and
piping to create a 3.0 °C superheat condition
BILLING CODE 6560–50–C
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
82387
the purpose of measuring final recovery
vacuum at the conclusion of the test.
7.2 Equipment Preparation and
Operation. The equipment shall be prepared
and operated per the operating instructions.
7.3 Test Batch. The test batch consisting
of refrigerant sample (see Section 5) of the
test refrigerant shall be prepared and
thoroughly mixed. Continued mixing or
stirring shall be required during the test
while liquid refrigerant remains in the
mixing chamber. The mixing chamber shall
be filled to 80 percent level by volume.
7.3.1 Control Test Batch. Prior to starting
the test for the first batch for each refrigerant,
a liquid sample will be drawn from the
mixing chamber and analyzed per Section 8
to assure that contaminant levels match
Table 1 within ±10 ppm for moisture, ±20
ppm for oleic acid and ±0.5 percent for oil.
7.4 Recovery Tests (Recovery and
Recovery/Recycling Equipment)
7.4.1 Determining Recovery Rates. The
liquid and vapor refrigerant recovery rates
shall be measured during the first test batch
for each refrigerant (see Sections 9.1, 9.2 and
9.4). Equipment preparation and recovery
cylinder changeover shall not be included in
elapsed time measurements for determining
vapor recovery rate and liquid refrigerant
recovery rate. Operations such as subcooling
the recovery cylinder shall be included. The
recovery cylinder shall be the same size as
per Section 6.3 or as furnished by the
equipment manufacturer. Oversized tanks
shall not be permitted.
7.4.1.1 Liquid Refrigerant Recovery Rate.
If elected, the recovery rate using the liquid
refrigerant feed means (see Section 6.2.5)
shall be determined. After the equipment
reaches stabilized conditions of condensing
temperature and/or recovery cylinder
pressure, the recovery process shall be
stopped and an initial weight shall be taken
of the mixing chamber (see Section 9.2). The
recovery process shall be continued for a
period of time sufficient to achieve the
accuracy in Section 9.4. The recovery process
shall be stopped and a final weight of the
mixing chamber shall be taken.
7.4.1.2 Vapor Refrigerant Recovery Rate.
If elected, the average vapor flow rate shall
be measured to accuracy requirements in
Section 9.4 under conditions with no liquid
7.1 General Testing.
7.1.1 Temperatures. Testing shall be
conducted at an ambient temperature of 24
°C ± 1 °C except high temperature vapor
recovery shall be at 40 °C ± 1 °C. The
evaporator conditions of Section 6.2.3 shall
be maintained as long as liquid refrigerant
remains in the mixing chamber.
7.1.2 Refrigerants. The equipment shall
be tested for all designated refrigerants (see
Section 11.2). All tests in Section 7 shall be
completed for each refrigerant before starting
tests with the next refrigerant.
7.1.3 Selected Tests. Tests shall be as
appropriate for the equipment type and
ratings parameters selected (see Sections 9.9,
11.1 and 11.2).
7.1.4 Hose Assemblies. For the purpose of
limiting refrigerant emissions to the
atmosphere, hose assemblies shall be tested
for permeation according to UL Standard
1963 (incorporated by reference, see
§ 82.168).
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pressure sides, with an isolation valve
located at the connection to the compressor
high side. A 6.3 mm access port with a valve
core shall be located in the balance line for
Section 7. Performance Testing Procedures
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apparatus are specifically described within
the manufacturer’s literature. A 6.3 mm
balance line shall be connected across the
test apparatus between the high- and low-
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refrigerant in the mixing chamber. The liquid
recovery feed means shall be used. At initial
conditions of saturated vapor at the higher of
24 °C or the boiling temperature (100 kPa),
the weight of the mixing chamber and the
pressure shall be recorded. At final
conditions representing pressure in the
mixing chamber of 10 percent of the initial
condition, but not less than the final recovery
vacuum (see Section 9.6) nor more than 100
kPa, measure the weight of the mixing
chamber and the elapsed time. At initial
conditions, the recovery cylinder shall be at
saturation pressure at ambient conditions.
7.4.1.3 High Temperature Vapor
Recovery Rate. This is applicable for
equipment having at least one designated
refrigerant (see Section 11.2) with a boiling
point between ¥50 °C and +10 °C. Measure
the rate for R–22, or the refrigerant with the
lowest boiling point if R–22 is not a
designated refrigerant. Repeat the test in
Section 7.4.1.2 at saturated conditions at 40
°C and continue to operate equipment to
assure it will operate at this condition (see
Section 7.4.3). At initial conditions, the
recovery cylinder shall be at saturated
pressure at 40 °C.
7.4.1.4 Push/Pull Liquid Refrigerant
Recovery Rate. If elected, the average liquid
push/pull flow rate shall be measured to
accuracy requirements in Section 9.4. The
mixing chamber and filling storage cylinder
shall be filled with refrigerant vapor at initial
conditions of saturated vapor at the higher of
24 °C or the boiling temperature at 100 kPa.
An amount of liquid refrigerant shall be
added to the mixing chamber equivalent to
80 percent by weight of the capacity of the
filling storage cylinder. The pressure between
the mixing chamber and filling storage
cylinder shall be equalized and stabilized at
initial conditions of saturated vapor at the
higher of 24 °C or the boiling temperature at
100 kPa. The initial weight of the mixing
chamber and the pressure shall be recorded.
The equipment is then operated in push/pull
liquid recovery mode and the weight change
of the mixing chamber is recorded over time
until all of the liquid has been transferred.
7.4.2 Recovery Operation. This test is for
determining the final recovery vacuum and
the ability to remove contaminants as
appropriate. If equipment is rated for liquid
recovery (see Section 7.4.1.3), liquid recovery
feed means described in Section 6.2.5 shall
be used. If not, vapor recovery means
described in Sections 6.2.3 or 6.2.4 shall be
used. Continue recovery operation until all
liquid is removed from the test apparatus and
vapor is removed to the point where
equipment shuts down by automatic means
or is manually shut off per operating
instructions.
7.4.2.1 Oil Draining. Capture oil from the
equipment at intervals as required in the
instructions. Record the weight of the
container. Completely remove refrigerant
from oil by evacuation or other appropriate
means. The weight difference shall be used
in Section 7.5.2.
7.4.3 Final Recovery Vacuum. At the end
of the first test batch for each refrigerant, the
liquid valve and vapor valve of the apparatus
shall be closed. After waiting 1 minute, the
mixing chamber pressure shall be recorded
(see Section 9.6).
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7.4.4 Residual Refrigerant. This test will
measure the mass of remaining refrigerant in
the equipment after clearing and therefore
the extent of mixing different refrigerants (see
Section 9.6).
7.4.4.1 Initial Conditions. At the end of
the last test for each batch for each
refrigerant, the equipment shall be
disconnected from the test apparatus (Figure
1). Recycle per Section 7.5, if appropriate.
Perform refrigerant clearing operations as
called for in the instruction manual. Capture
and record the weight of any refrigerant
which would have been emitted to the
atmosphere during the clearing process for
use in Section 9.5. If two loops are used for
recycling, trapped refrigerant shall be
measured for both.
7.4.4.2 Residual Trapped Refrigerant.
Evacuate an empty test cylinder to 1.0 kPa.
Record the empty weight of the test cylinder.
Open all valves to the equipment so as to
provide access to all trapped refrigerant.
Connect the equipment to the test cylinder
and operate valves to recover the residual
refrigerant. Record the weight of the test
cylinder using a recovery cylinder pressure
no less than specified in Section 6.2.2. Place
the test cylinder in liquid nitrogen for a
period of 30 minutes or until a vacuum of
1000 microns is reached, whichever occurs
first.
7.5 Recycling Tests (Recovery/Recycling
Equipment).
7.5.1 Recycling Operation. As each
recovery cylinder is filled in Section 7.4.2,
recycle according to operating instructions.
There will not necessarily be a separate
recycling sequence. Note non-condensable
purge measurement in Section 9.5.
7.5.1.1 Recycle Flow Rate. While
recycling the first recovery cylinder for each
refrigerant, determine the recycling flow rate
by appropriate means (see Section 9.3) to
achieve the accuracy required in Section 9.4.
7.5.2 Non-Condensable Sample. After
completing Section 7.4.3, prepare a second
test batch (see Section 7.3). Recover per
Section 7.4.2 until the current recovery
cylinder is filled to 80 percent level by
volume. Recycle per Section 7.5.1. Mark this
cylinder and set aside for taking the vapor
sample. For equipment having both an
internal tank of at least 3 kg refrigerant
capacity and an external recovery cylinder,
two recovery cylinders shall be marked and
set aside. The first is the cylinder described
above. The second cylinder is the final
recovery cylinder after filling it to 80 percent
level by volume and recycling.
7.5.2.1 Push/Pull Liquid Refrigerant
Recovery Rate. This rate shall be measured
by weight change of the mixing chamber
divided by elapsed time (see Section 7.4.1.4).
The units shall be kg/min and the accuracy
shall be per Section 9.4.
7.5.3 Liquid Sample for Analysis. Repeat
steps in Sections 7.3, 7.4.2 and 7.5.1 with
further test batches until indication means in
Section 4.2 show the filter/drier(s) need
replacing.
7.5.3.1 Multiple Pass. For equipment with
a separate recycling circuit (multiple pass),
set aside the current cylinder and draw the
liquid sample (see Section 7.4) from the
previous cylinder.
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7.5.3.2 Single Pass. For equipment with
the single pass recycling circuit, draw the
liquid sample (see Section 7.4) from the
current cylinder.
7.6 Measuring Refrigerant Loss.
Refrigerant loss due to non-condensables
shall be determined by appropriate means
(see Section 9.5.1). The loss could occur in
Sections 7.4.1, 7.4.2 and 7.5.1.
Section 8. Sampling and Chemical Analysis
Methods
8.1 Chemical Analysis. Chemical analysis
methods shall be specified in appropriate
standards such as AHRI Standard 700, 2008
Appendix C for Analytical Procedures for
AHRI Standard 700–2014- Normative, and
Addendum 700–1 to Appendix C. If alternate
test methods are employed, the laboratory
must be able to demonstrate that they
produce results equivalent to the specified
referee method.
8.2 Refrigerant Sampling.
8.2.1 Moisture Content. The water
content in refrigerant shall be measured by
the Karl Fischer Coulometric Titration
technique. Report the moisture level in parts
per million by weight.
8.2.2 Chloride Ions. Chloride ions shall be
measured by turbidity tests. At this time,
quantitative results have not been defined.
Report chloride content as ‘‘pass’’ or ‘‘fail.’’
In the future, when quantitative results are
possible, report chloride content as parts per
million by weight.
8.2.3 Acid Content. The acidity test uses
the titration principle. Report the acidity in
parts per million by weight (mg KOH/kg) of
sample.
8.2.4 High Boiling Residue. High boiling
residues shall use measurement of the
volume of residue after evaporating a
standard volume of refrigerant. Using weight
measurement and converting to volumetric
units is acceptable. Report high boiling
residues as percent by volume.
8.2.5 Particulates/Solids. The
particulates/solids measurement employs
visual examination. Report results as ‘‘pass’’
or ‘‘fail.’’
8.2.6 Non-condensables. The level of
contamination by non-condensable gases in
the base refrigerant being recycled shall be
determined by gas chromatography. Report
results as percent by volume.
Section 9. Performance Calculations for
Ratings
9.1 Vapor Refrigerant Recovery Rate. This
rate shall be measured by weight change of
the mixing chamber divided by elapsed time
(see 7.4.1.2). The units shall be kg/min and
the accuracy shall be per Section 9.4.
9.1.1 High Temperature Vapor Recovery
Rate. This rate shall be measured by
measured weight change of the mixing
chamber divided by elapsed time (see
Section 7.4.1.3). The units shall be kg/min
and the accuracy shall be per Section 9.4.
9.2 Liquid Refrigerant Recovery Rate.
This rate shall be measured by weight change
of the mixing chamber divided by elapsed
time (see 7.4.1.3). The units shall be kg/min
and the accuracy shall be per Section 9.4.
9.3 Recycle Flow Rate. The recycle flow
rate shall be as defined in Section 3.12,
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expressed in kg/min, and the accuracy shall
be per Section 9.4.
9.3.1 For equipment using multi-pass
recycling or a separate sequence, the recycle
rate shall be determined by dividing the net
weight, W, of the refrigerant to be recycled
by the actual time T required to recycle. Any
set-up or operator interruptions shall not be
included in the time T.
9.3.2 If no separate recycling sequence is
used, the recycle rate shall be the higher of
the vapor refrigerant recovery rate or the
liquid refrigerant recovery rate. The recycle
rate shall match a process which leads to
contaminant levels in Section 9.9.
Specifically, a recovery rate determined from
bypassing a contaminant removal device
cannot be used as a recycle rate when the
contaminant levels in Section 9.9 are
determined by passing the refrigerant
through the contaminant removal device.
9.4 Accuracy of Flow Rates. The accuracy
of test measurements in Sections 9.1, 9.2 and
9.3 shall be ±008 kg/min for flow rates up to
0.42 kg/min and ±2.0 percent for flow rates
larger than 0.42 kg/min. Ratings shall be
expressed to the nearest 0.02 kg/min.
9.5 Refrigerant Loss. This calculation will
be based upon the net loss of refrigerant
which would have been eliminated in the
non-condensable purge process (see Section
7.5.1), the oil draining process (see Section
7.4.2.1) and the refrigerant clearing process
(see Section 7.4.4.1), all divided by the net
refrigerant content of the test batches. The
refrigerant loss shall not exceed 3 percent by
weight.
9.5.1 Non-Condensable Purge. Evacuate
an empty container to 2 kPa. Record the
empty weight of the container. Place the
container in a dry ice bath. Connect the
equipment purge connection to the container
and operate purge according to operating
instructions so as to capture the noncondensables and lost refrigerant. Weigh the
cylinder after the recycling is complete.
Equivalent means are permissible.
For units which either recycle or publish
(list) non-condensable removal, noncondensable gases are purged, operating the
recycle device per the manufacturer’s
instructions through an evaporator pressure
regulator (EPR) valve into a liquid nitrogenchilled cylinder. This combination will
simulate the atmosphere while allowing the
capture of purge gases. The cylinder is
weighed before and after the purge
procedure.
9.5.2 Oil Draining. Refrigerant removed
from the oil after draining shall be collected
and measured in accordance with Section
7.4.2.1.
9.5.3 Clearing Unit. Refrigerant captured
during the clearing process shall be measured
in accordance with Section 7.4.4.1.
9.6 Final Recovery Vacuum. The final
recovery vacuum shall be the mixing
chamber pressure in Section 7.4.3 expressed
in kPa at 24 °C. The accuracy of the
measurement shall be within 0.33 kPa.
9.7 Residual Trapped Refrigerant. The
amount of residual trapped refrigerant shall
be the final weight minus the initial weight
of the test cylinder in Section 7.4.4.2,
expressed in kg. The accuracy shall be ±0.02
kg and reported to the nearest 0.05 kg.
9.8 Refrigerant Processed. The amount of
refrigerant processed before changing filters
(see Section 7.5.3) shall be expressed in kg
to an accuracy of ±1 percent.
9.9 Contaminant Levels. The contaminant
levels remaining after testing shall be
published as follows:
Moisture content, ppm by weight
Chloride ions, pass/fail
Acid Content, ppm by weight
High boiling residue, percent (by volume)
Particulates/solids, pass/fail (visual
examination)
Non-condensables, percent (by volume)
9.10 Minimum Data Requirements for
Published Ratings. Published ratings shall
include all of the parameters as shown in
82389
Tables 2 and 3 for each refrigerant designated
by the manufacturer.
Section 10. Tolerances
10.1 Tolerances. Performance related
parameters shall be equal to or better than the
published ratings.
Section 11. Marking and Nameplate Data
11.1 Marking and Nameplate Data. The
nameplate shall display the manufacturer’s
name, model designation, type of equipment
(Recovery or Recovery/Recycling and SelfContained or System Dependent), designated
refrigerant(s), capacities, and electrical
characteristics where applicable. The
nameplate shall also conform to the labeling
requirements established for certified
recycling and recovery equipment
established at 40 CFR 82.158(h).
Recommended nameplate voltages for 60
Hertz systems shall include one or more of
the equipment nameplate voltages shown in
Table 1 of AHRI 110–2016 (incorporated by
reference, see § 82.168). Recommended
nameplate voltages for 50 Hertz systems shall
include one or more of the utilization
voltages shown in Table 1 of IEC 60038
(English version) (incorporated by reference,
see § 82.168).
11.2 Data for Designated Refrigerants. For
each refrigerant designated, the manufacturer
shall include all the following that are
applicable per Table 2:
a. Liquid Recovery Rate, kg/min
b. Vapor Recovery Rate, kg/min
c. High Temperature Vapor Recovery Rate,
kg/min
d. Push/Pull Liquid Recovery Rate, kg/min
e. Final Recovery Vacuum Level, kPa
f. Recycle Flow Rate, kg/min
g. Refrigerant Loss, kg
h. Residual Trapped Refrigerant, kg
i. Quantity of Refrigerant Processed at Rated
Conditions, kg
TABLE 2—PERFORMANCE RATINGS FOR REFRIGERANT RECOVERY AND RECOVERY/RECYCLING EQUIPMENT 4 5
Type of equipment
Parameter
Recovery
Recovery/
recycling
Recycling
System
dependent
equipment
X14
X1
X1
X1
X
N/A
X2
X3
N/A
X1
X1
X1
X1
X
X
X
X2
X
N/A 5
N/A
N/A
N/A
N/A
X
X
X2
X
N/A
N/A
N/A
N/A
X
N/A
X3
X2
N/A
mstockstill on DSK3G9T082PROD with RULES5
Liquid Refrigerant Recovery Rate, kg/min .......................................................
Vapor Refrigerant Recovery Rate, kg/min .......................................................
High Temperature Vapor Recovery Rate, kg/min ...........................................
Push/Pull Liquid Recovery Rate, kg/min .........................................................
Final Recovery Vacuum Level, kPa ................................................................
Recycle Flow Rate, kg/min ..............................................................................
Refrigerant Loss, kg ........................................................................................
Residual Trapped Refrigerant, kg ...................................................................
Quantity of Refrigerant Processed at Rated Conditions, kg ...........................
1 For a recovery or recovery/recycle unit, one must rate either liquid refrigerant recovery rate or vapor refrigerant recovery rate or one can rate
for both. If rating only one, the other shall be indicated by N/A, ‘‘not applicable.’’
2 Mandatory rating if multiple refrigerants, oil separation or non-condensable purge are rated.
3 Mandatory rating for equipment tested for multiple refrigerants.
4 ‘‘X’’ denotes mandatory rating or equipment requirements.
5 ‘‘N/A’’ indicates ‘‘Not Applicable’’ for a parameter that does not have a rating.
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Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
TABLE 3—CONTAMINANT REMOVAL RATINGS FOR REFRIGERANT RECOVERY AND RECOVERY/RECYCLING EQUIPMENT 1 2
Type of equipment
Contaminant
Recovery
Recovery/
recycling
Recycling
System
dependent
equipment
N/A 2
N/A
N/A
N/A
N/A
N/A
X1
X
X
X
X
X
X
X
X
X
X
X
N/A
N/A
N/A
N/A
N/A
N/A
Moisture Content, ppm by weight ....................................................................
Chloride Ions, pass/fail ....................................................................................
Acid Content, ppm by weight ..........................................................................
High Boiling Residue, % by volume ................................................................
Particulates/solids, pass/fail .............................................................................
Non-condensables, % by volume ....................................................................
1 ‘‘X’’
denotes mandatory rating.
indicates ‘‘Not Applicable’’ for a parameter that does not have a rating.
2 ‘‘N/A’’
Section 12. References
Listed here are all standards, handbooks,
and other publications essential to the
formation and implementation of the
standard. All references in this appendix are
considered as part of this standard.
• UL 1963, Standard for Safety Refrigerant
Recovery/Recycling Equipment, Fourth
Edition (with revisions through October
13, 2013), dated June 1, 2011,
(incorporated by reference, see § 82.168).
• AHRI 110–2016, 2016 Standard for AirConditioning, Heating and Refrigerating
Equipment Nameplate Voltages,
copyright 2016 (incorporated by
reference, see § 82.168).
• AHRI Standard 700–2015, Specifications
for Refrigerants, Air-Conditioning,
Heating, and Refrigeration Institute
• IEC 60038 IEC Standard Voltages, Edition
7.0, 2009–06 (English version)
(incorporated by reference, see § 82.168).
mstockstill on DSK3G9T082PROD with RULES5
Section 13.0. Particulate Used in Standard
Contaminated Refrigerant Sample
13.1 Particulate Specification
13.1.1 The particulate material (pm) will
be a blend of 50 percent coarse air cleaner
dust as received, and 50 percent retained on
a 200-mesh screen. The coarse air cleaner
dust is available from: AC Spark Plug
Division; General Motors Corporation; Flint,
Michigan.
13.1.2 Preparation of Particulate
Materials. To prepare the blend of
contaminant per ANSI/ASHRAE Standard
63.2–1996 (RA 2010), first wet screen a
quantity of coarse air cleaner dust on a 200mesh screen (particle retention 74 mm). This
is done by placing a portion of the dust on
a 200-mesh screen and running water
through the screen while stirring the dust
with the fingers. The fine contaminant
particles passing through the screen are
discarded. The larger than 200-mesh particles
collected on the screen are removed and
dried for one hour at 110 °C. The blend of
standard contaminant is prepared by mixing
50 percent by weight of coarse air cleaner
dust as received (after drying for one hour at
110 °C) with 50 percent by weight of the
larger than 200-mesh screened dust.
13.1.3 Particle Size Analysis. The coarse
air cleaner dust as received and the blend
used as the standard contaminant have the
following approximate particle size analysis:
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TABLE B1—WEIGHT PERCENTAGE IN
VARIOUS μm SIZE RANGES FOR
PARTICLE SIZE ANALYSIS
Size range
(μm)
0–5 ............................
5–10 ..........................
10–20 ........................
20–40 ........................
40–80 ........................
80–200 ......................
As
received
(wt %)
Blend
(wt %)
12
12
14
23
30
9
6
6
7
11
32
38
17. Amend subpart F by adding
appendix B4 to read as follows:
■
Appendix B4 to Subpart F of Part 82—
Performance and Safety of Flammable
Refrigerant Recovery and/or Recycling
Equipment
This appendix is based on the AirConditioning, Heating, and Refrigeration
Institute Standard 740–2016, Performance
Rating of Refrigerant Recovery Equipment
and Recovery/Recycling Equipment, and
Underwriters Laboratories Standard 1963–
2011 (Fourth Edition), Standard for Safety:
Refrigerant Recovery/Recycling Equipment,
including Supplement SB (added October 11,
2013), Requirements for Refrigerant
Recovery/Recycling Equipment Intended for
Use with a Flammable Refrigerant.
Section 1. Purpose
1.1 The purpose of this standard is to
establish methods of testing for rating and
evaluating the performance and safety of
refrigerant recovery and/or recycling
equipment and general equipment
requirements (herein referred to as
‘‘equipment’’) for contaminant or purity
levels, capacity, speed and purge loss to
minimize emission into the atmosphere of
designated refrigerants, as well as safety for
use with flammable refrigerants.
Section 2. Scope
2.1 This standard applies to equipment
for recovering and/or recycling flammable
single refrigerants, azeotropes, zeotropic
blends, and their normal contaminants from
refrigerant systems. This standard defines the
test apparatus, test gas mixtures, sampling
procedures, analytical techniques, and
equipment construction that will be used to
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determine the performance and safety of
refrigerant recovery and/or recycling
equipment (hereinafter, ‘‘equipment’’).
Section 3. Definitions
3.1 All terms in this appendix will follow
the definitions in § 82.152 and Appendix B3
to Subpart F of Part 82 unless otherwise
defined in this appendix.
3.2 All definitions used in UL 1963,
including the definitions in Supplement SB,
as applicable, are incorporated by reference,
see § 82.168.
Section 4. Evaluation of Performance
4.1 Performance Ratings. All recovery
and/or recycling equipment to be tested
under this appendix must follow the
procedures and meet all requirements
established in Appendix B3 to Subpart F of
Part 82 to determine the performance ratings
in addition to the safety evaluation
conducted under the rest of this appendix.
4.2 Safety. All recovery and/or recycling
equipment to be tested under this appendix
must follow the procedures and meet all
requirements in Supplement SB (added
October 11, 2013), Requirements for
Refrigerant Recovery/Recycling Equipment
Intended for Use with a Flammable
Refrigerant in Underwriters Laboratories
Standard 1963–2011 (Fourth Edition),
Standard for Safety: Refrigerant Recovery/
Recycling Equipment (incorporated by
reference, see § 82.168).
18. Amend subpart F by revising
appendix D to read as follows:
■
Appendix D to Subpart F of Part 82—
Standards for Becoming a Certifying
Program for Technicians
a. Test Preparation. Technicians must pass
an EPA-approved test, provided by an EPAapproved certifying program to be certified as
a Type I technician. Organizations providing
Type I certification only may choose either
an on-site format or a mail-in format similar
to what is permitted under the MVACs
program.
Technicians must pass a closed-book,
proctored test, administered in a secure
environment, by an EPA-approved certifying
program to be certified as a Type II or Type
III technician.
Technicians must pass a closed-book,
proctored test (or series of tests),
administered in a secure environment, by an
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EPA-approved certifying program to be
certified as a Universal technician. Mail-in
format Type I tests cannot be used toward a
Universal certification.
Each certifying program must assemble
tests by choosing a prescribed subset from
the EPA test bank. EPA will have a test bank
with more questions than are needed for an
individual test, which will enable the
certifying program to generate multiple tests
in order to discourage cheating. Each test
must include 25 questions drawn from Group
1 and 25 questions drawn from each relevant
technical Group. Tests for Universal
technicians will include 100 questions (25
from Group 1 and 25 from each relevant
technical Group). Universal tests may be
taken all at once, or by combining passing
scores on separate Type I, Type II, and Type
III tests. Questions should be divided in
order to sufficiently cover each topic within
the Group.
Certifying programs must provide a paper
hand-out or electronic form of
communication to technicians after they have
completed their certification test that
contains the following information:
—Which certifying program is providing the
testing;
—Contact information for the certifying
program;
—The name and contact information of the
proctor; and
—When they should expect to receive their
score and, if they passed, their certification
card.
Each certifying program must show a
method of randomly choosing which
questions will be on the tests. Multiple
versions of the test must be used during each
testing event. Test answer sheets must
include the name and address of the
applicant, the name and address of the
certifying program, and the date and location
at which the test was administered.
Training material accompanying mail-in
Type I tests must not include sample test
questions mimicking the language of the
certification test. All mail-in material will be
subject to review by EPA.
Certifying programs may charge
individuals reasonable fees for the
administration of the tests. EPA will publish
a list of all approved certifying programs.
b. Proctoring. A certifying program for
Type I (if in-person), Type II, Type III, and
Universal technicians must designate at least
one proctor registered for every 50 people
taking tests at the same time at a given site.
The certification test for Type I (if taken as
part of a Universal certification), Type II,
Type III, and Universal technicians is a
closed-book exam. The proctors must ensure
that the applicants for certification do not use
any notes or training materials during testing.
Desks or work space must be placed in a way
that discourages cheating. The space and
physical facilities are to be conducive to
continuous surveillance by the proctors and
monitors during testing.
The proctor may not receive any benefit
from the outcome of the testing other than a
fee for proctoring. Proctors cannot know in
advance which questions are on the tests
they are proctoring.
Proctors are required to verify the identity
of individuals taking the test by examining
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photo identification. Acceptable forms of
identification include but are not limited to
drivers’ licenses, government identification
cards, passports, and military identification.
Certifying programs for Type I technicians
using the mail-in format, must take sufficient
measures at the test site to ensure that tests
are completed honestly by each technician.
Each test for Type I certification must
provide a means of verifying the
identification of the individual taking the
test. Acceptable forms of identification
include but are not limited to drivers’
licenses and passports.
c. Test Security. A certifying program must
demonstrate the ability to ensure the
confidentiality and security of the test
questions and answer keys through strict
accountability procedures. An organization
interested in developing a technician
certification program will be required to
describe these test security procedures to
EPA.
After the completion of a test, proctors
must collect all test forms, answer sheets,
scratch paper and notes. These items are to
be placed in a sealed envelope.
d. Test Content. All Type I, Type II and
Type III, certification tests will include 25
questions from Group I and 25 questions
from Group II. Universal certification tests
will include 25 questions from Group I and
75 questions from Group II (with 25 from
each of the three sector-specific areas).
Group I will ask questions in the following
areas:
1. Environmental impact of CFCs, HCFCs,
and substitute refrigerants
2. Laws and regulations
3. Changing industry outlook
Group II will ask questions covering sectorspecific (i.e., Type I, Type II, Type III) issues
in the following areas:
4. Leak detection
5. Recovery Techniques
6. Safety
7. Shipping
8. Disposal
e. Grading. Tests must be graded
objectively. Certifying programs must inform
the applicant of their test results no later than
30 days from the date of the test. Type I
certifying programs using the mail-in format
must notify the applicants of their test results
no later than 30 days from the date the
certifying programs received the completed
test and any required documentation.
The passing score for the closed-book Type
I, Type II, Type III and Universal certification
test is 70 percent. The passing score for Type
I certification tests using the mail-in format
is 84 percent.
f. Proof of Certification. Certifying
programs must issue a standard wallet-sized
identification card no later than 30 days from
the date of the test. Type I certifying
programs using mail-in formats must issue
cards to certified technicians no later than 30
days from the date the certifying program
receives the completed test and any required
documentation.
Each wallet-sized identification card must
include, at a minimum, the name of the
certifying program including the date the
certifying program received EPA approval,
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the name of the person certified, the type of
certification, a unique number for the
certified person that does not include a
technician’s social security number, and the
following text:
[name of person] has successfully passed a
[Type I, Type II, Type III and/or Universal—
as appropriate] exam on how to responsibly
handle refrigerants as required by EPA’s
National Recycling and Emissions Reduction
Program.
g. Recordkeeping and Reporting
Requirements. Certifying programs must
maintain records of the names and addresses
of all individuals taking the tests, the scores
of all certification tests administered, and the
dates and locations of all tests administered.
These records must be maintained
indefinitely, unless transferred to another
certifying program or EPA.
EPA must receive an activity report from
all approved certifying programs by every
January 30 and July 30, which covers the
previous six months of certifications. The
first report must be submitted following the
first full six-month period for which the
program has been approved by EPA. This
report includes the pass/fail rate. If the
certifying program believes a test bank
question needs to be modified, information
about that question should also be included.
Approved certifying programs will receive
a letter of approval from EPA. Each testing
center must display a copy of that letter at
their place of business.
Approved technician certification
programs that voluntarily plan to stop
providing the certification test must forward
all records required by this appendix and
§ 82.161 to another program currently
approved by EPA in accordance with this
appendix and with § 82.161. Approved
technician certification programs that receive
records of certified technicians from a
program that no longer offers the certification
test, and the program that is voluntarily
withdrawing from being a technician
certification program must inform EPA at the
address listed in § 82.160 within 30 days of
receiving or transferring these records. The
notification must include the name and
address of the program to which the records
have been transferred. If another currently
approved program willing to accept the
records cannot be located, these records must
be submitted to EPA at the address listed at
§ 82.160.
Technician certification programs that
have had their certification revoked in
accordance with § 82.169 must forward all
records required by this appendix and
§ 82.161 to EPA at the address listed in
§ 82.160. Failure to do so is a violation of 40
CFR part 82, subpart F.
h. Additional Requirements. EPA may
periodically inspect testing sites to ensure
compliance with EPA regulations. If testing
center discrepancies are found, they must be
corrected within a specified time period. If
discrepancies are not corrected, EPA may
suspend or revoke the certifying program’s
approval. The inspections will include but
are not limited to a review of the certifying
program’s provisions for test security, the
availability of space and facilities to conduct
the administrative requirements and ensure
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the security of the tests, the availability of
adequate testing facilities and spacing of the
applicants during testing, a review of the
proper procedures regarding accountability,
and that there is no evidence of misconduct
on the part of the certifying programs, their
representatives and proctors, or the
applicants for certification.
If the certifying programs offer training or
provide review materials to the applicants,
these endeavors are to be considered
completely separate from the administration
of the certification test.
19. Amend subpart F by adding
appendix E to read as follows:
■
Appendix E to Subpart F of Part 82—
Test Procedure for Leaks From
Containers Holding Two Pounds or Less
of Refrigerant for Use in an MVAC
This appendix is based on the California
Air Resources Board (CARB) standard TP–
503: Test Procedure for Leaks from Small
Cans of Automotive Refrigerant, as amended
on January 5, 2010; and CARB standard BP–
A1: Balance Protocol for Gravimetric
Determination of Sample Weights using a
Precision Balance, as amended January 5,
2010.
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Section 1. Applicability
This test procedure is used by
manufacturers of containers holding two
pounds or less of refrigerant for use in a
motor vehicle air conditioner (MVAC) to
determine the leakage rate of small
containers of automotive refrigerant that are
subject to the requirements of 40 CFR part 82,
subpart F. Specifically, this test procedure
will specify the equipment, procedures, and
calculations to determine if a container
holding two pounds or less of refrigerant for
use in an MVAC complies with the leakage
rate specified in § 82.154(c)(2)(ii). All terms
in this appendix will follow the definitions
in § 82.152 unless otherwise defined in this
appendix.
All containers holding two pounds or less
of refrigerant for use in an MVAC must
comply with other applicable codes and
regulations such as local, state, or Federal
safety codes and regulations.
This test procedure involves the use of
materials under pressure and operations and
should only be used by or under the
supervision of those familiar and
experienced in the use of such materials and
operations. Appropriate safety precautions
should be observed at all times while
performing this test procedure.
Section 2. Principle and Summary of Test
Procedure
This procedure is used to determine the
leakage rate of containers holding two
pounds or less of refrigerant for use in an
MVAC (small cans). Testing will involve
subjecting both full and partially empty cans
in both upright and inverted positions at two
temperatures: 73 °F and 130 °F.
Thirty small cans are tested under each
condition for a total of 240 small cans tested.
Small cans are brought to temperature
stability, weighed, then stored for 30 days
under specified conditions of temperature,
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orientation, and state of fill, then re-weighed.
Leakage rate (grams/year) is estimated by
(weight loss in grams) x 365/(days duration).
The leakage rate is then compared to a
standard of 3.00 grams/year to determine if
a given small can complies with the leakage
rate specified in § 82.154(c)(2)(ii).
Section 3. Biases and Interferences
3.1 Contaminants on the operator’s hands
can affect the weight of the small can and the
ability of the small can to absorb moisture.
To avoid contamination of the small can, the
balance operator should wear gloves while
handling the small cans.
3.2 Weight determinations can be
interfered with by moisture condensing on
the small can and by thermal currents
generated by temperature differences
between the small can and the room
temperature. The small cans cool during
discharge and could cause condensation. For
these reasons, small cans must be
equilibrated to balance room temperature for
at least four hours before weighing.
3.3 Variations in the temperature,
pressure, and humidity of the ambient air
will cause variations in the buoyancy of the
small can. These variations should typically
be less than 25 mg for a small can. If the
small can is not leaking at all, then the
uncorrected weight changes will be within
the range of 0 ± 25 mg, which is about ten
percent of the 247 mg loss expected after
thirty days for a can leaking at 3 g/yr. In that
case buoyancy corrections can be omitted. If
the absolute value of the uncorrected weight
change exceeds 25 mg, then all calculations
must be made using weights corrected for
buoyancy based on the temperature,
pressure, and humidity of the weighing
room.
3.4 Some electronic balances are sensitive
to the effects of small static charges. The
small can should be placed directly on the
balance pan, ensuring metal to metal contact.
If the balance pan is not grounded, the small
can and balance pan should be statically
discharged before weighing.
Section 4. Sensitivity and Range
The mass of a full small can could range
from roughly 50 g to 1000 g depending on the
container capacity. A top loading balance,
capable of a maximum weight measurement
of not less than 1,000 g and having a
minimum readability of 0.001 g,
reproducibility and linearity of ± 0.002 g,
must be used to perform mass measurements.
Section 5. Equipment
5.1 A top loading balance that meets the
requirements of Section 4 above.
5.2 A NIST traceable working standard
mass for balance calibration. A NIST
traceable working standard mass for a
balance linearity check. A reference mass to
serve as a ‘‘blank’’ small can.
5.3 An enclosure capable of controlling
the internal air temperature from 73 °F ± 5 °F,
and an enclosure capable of controlling the
internal air temperature to 130 °F ± 5 °F.
5.4 A temperature instrument capable of
measuring the internal temperature of the
temperature conditioning enclosures and the
balance room with a sensitivity of ± 2 °F.
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5.5 A barometric pressure instrument
capable of measuring atmospheric pressure at
the location of the balance to within ± 0.02
inches of mercury.
5.6 A relative humidity measuring
instrument capable of measuring the relative
humidity (RH) at the location of the balance
with a sensitivity of ± 2 percent RH.
5.7 A hose with appropriate fitting for
dispensing refrigerant from the small can to
a recovery machine.
5.8 A refrigerant recovery machine to
collect the discharged refrigerant from small
cans being tested.
Section 6. Calibration Procedures
6.1 Calibrations are applied to the
balance and to the support equipment such
as temperature, humidity, and pressure
monitoring equipment. Procedures for
calibration are not spelled out here. General
calibration principals for the support
equipment and the balance are described in
Section 11, Quality Assurance/Quality
Control. Detailed calibration procedures for
measurements made using the balance are
contained in Attachment A: ‘‘Balance
Protocol for Gravimetric Determination of
Sample Weights using a Precision Balance.’’
Section 7. Small Can Preparation
7.1 Receive a batch of 240 small cans of
one design to be tested. These may include
several SKUs from different manufacturers if
the container and valve combination are the
same.
7.2 Clean small cans with Alkanox
solution or equivalent and dry with a lint free
towel.
7.3 Confirm that the sample ID sticker on
the small can matches the sample ID on the
chain of custody forms.
7.4 Select a reference mass similar to the
weight of a full small can. If multiple sets of
similar sized small cans are being tested,
only one reference mass is needed; it can be
used with all sets. Store the reference mass
in the balance area.
7.5 Evacuate the contents of one half of
the small cans (120 cans) into the refrigerant
recovery machine using normal DIY
dispensing procedures until each small can
is approximately half full.
7.6 Select a reference mass similar to the
weight of the half-full small can. If multiple
sets of similar size small cans are being
tested, only one reference mass is needed; it
can be used with all sets. Store the reference
mass in the balance area.
Section 8. Small Can Weighing
Weighing cans on the balance is done in
accordance with Attachment A to this
appendix. Attachment A describes how to
conduct weight determinations including
appropriate calibration and QC data. This
section, ‘‘Small Can Weighing,’’ describes the
overall process, not the details of how to use
the balance.
Initial Weights
8.1 Put on gloves. Check the small cans
for contamination.
8.2 Place the 240 small cans into a
location where they can equilibrate to
balance room temperature. Record the small
can test IDs and the equilibration start time
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on the Small Can Test Data Forms available
on EPA’s Web site in sets of thirty, one form
for each of the eight test conditions.
8.3 Let cans equilibrate for at least four
hours.
8.4 Weigh the set of 240 small cans and
the reference weights using Attachment A
and log the results to the Balance Weighing
Log Form available on EPA’s Web site.
8.5 Transfer data from the Balance
Weighing Log Form to the Small Can Test
Data Form in sets of 30, one set for each of
the eight conditions to be tested.
Thirty-Day Soak
8.6 Place each set of 30 small cans into
the appropriate orientation and temperature
for soaking:
30 full small cans—73 °F, upright
30 full small cans—73 °F, inverted
30 full small cans—130 °F, upright
30 full small cans—130 °F, inverted
30 half-full small cans—73 °F, upright
30 half-full small cans—73 °F, inverted
30 half-full small cans—130 °F, upright
30 half-full small cans—130 °F, inverted
8.7 Soak the small cans for 30 days
undisturbed.
Final Weighing
8.8 Place the 240 small cans into a
location where they can equilibrate to
balance room temperature.
8.9 Let the small cans equilibrate for at
least four hours.
8.10 Weigh the set of 240 small cans, the
reference weights, and any additional sets of
small cans using Attachment A.
8.11 Transfer data from the Balance
Weighing Log Form to the corresponding
Small Can Test Data Forms.
Section 9. Calculations
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Corrections for Buoyancy
The calculations in this section are
described in terms of ‘‘weight.’’ Mass is a
property of the small can, whereas weight is
a force due to the effects of buoyancy and
gravity. Procedures for correcting the effect of
buoyancy are given in Attachment B of this
appendix. Ignoring buoyancy, i.e., using
weight data uncorrected for buoyancy effects,
is acceptable for a thirty day test if the
absolute magnitude of the weight change is
less than 25 mg. If the uncorrected weight
change exceeds 25 mg for any small can, then
correct all small can weights for buoyancy
using the procedures in Attachment B before
performing the calculations described below.
Calculation of Leak Rate
The emission rate in grams/day for each
small can is calculated by subtracting the
final weight from the initial weight and then
dividing the weight difference by the time
difference measured in days to the nearest
hour (nearest 1/24 of a day). The emission
rate in g/day is multiplied by 365 to
determine emission rate in grams/yr. If the
annual emission rate for any small can
exceeds the entire small can contents, then
the annual emission rate for that small can
is adjusted to equal the entire small can
contents/year (e.g., about 350 g/yr for a 12
ounce small can). The annual emission rate
for the purpose of the test is calculated by
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averaging the 240 individual adjusted annual
emission rates and rounding to two decimal
places. The cans fail the test if the adjusted
annual emission rate averaged over 240 cans
is greater than 3.00 g/yr. The calculations are
described below.
Loss rate for each small can
Eidaily = (Wifinal ¥ Wiinitial)/(Difinal ¥ Diinitial)
g/day
Eiannual = 365 × Eidaily g/year
Eiadjusted = Minimum of (Eiadjusted, Ci/year) g/
yr
Where,
Ei = emission rate
Wifinal = weight of can i after soaking (grams)
Wiinitial = weight of can I before soaking
(grams)
Difinal = date/time of final weight
measurements (days)
Diinitial = date/time of initial weight
measurements (days)
Ci = original factory mass of refrigerant in
can i
Note: Date/Times are measured in days.
Microsoft Excel stores dates and times in
days, and the calculations can be made
directly in Excel. If calculations are made
manually, calculate serial days to the nearest
hour for each date and time as follows:
D = Julday + Hour/24
Where,
Julday = serial day of the year: Jan 1 = 1, Jan
31 = 31, Feb 1 = 32, etc.
Hour = hour of day using 24-hour clock, 0
to 23
Calculate the average loss rate for the 240
small cans as follows:
Emean = [Sum (Eadjustedi), i = 1 to 240]/240
Section 10. Recordkeeping
During small can weighing, record the
small can weights and date/times on the
Balance Weighing Log Form. After each
weighing session, transfer the measured
weights and date/times from the Balance
Weighing Log Form to the Small Can Test
Data Form.
At the end of the test, complete the
calculations described in Section 9,
Calculations, and record the results on the
Small Can Test Data Form.
Section 11. Quality Assurance/Quality
Control
11.1 All temperature, pressure, and
humidity instruments should be calibrated
annually against NIST traceable laboratory
standards. The main purpose of the NIST
traceable calibration is to establish the
absolute accuracy of the device. The
instruments should also be checked
periodically such as weekly, monthly, or
quarterly against intermediate standards or
against independent instruments. For
example, a thermocouple can be checked
weekly against a wall thermometer. A
barometer or pressure gauge can be checked
weekly by adjusting to sea level and
comparing with local airport data. The main
purpose of the frequent checks is to verify
that the device has not failed in some way.
This is especially important for electronic
devices such as a digital thermometer, but
even a liquid filled thermometer can develop
a problem such as a bubble.
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11.2 The balance should be serviced and
calibrated annually by an independent
balance service company or agency using
NIST traceable reference masses. Servicing
verifies accuracy and linearity, and the
maintenance performed helps ensure that a
malfunction does not develop.
11.3 The balance must also be calibrated
and its linearity checked with working
standards before and after each weighing
session, or before and after each group of 24
small cans if more than 24 small cans are
weighed in a session. Procedures for
calibrating and using the balance, as well as
recording balance data, are described in the
accompanying balance weighing protocol.
These procedures include zero checks,
calibration checks, and reference mass
checks. Procedures for calculating quality
control data from those checks are described
in Attachment A.
11.4 The small cans are cleaned then
handled using gloves to prevent
contamination. All equilibration and soaking
must be done in a dust free area.
Section 12. Balance Protocol for Gravimetric
Determination of Sample Weights Using a
Precision Balance
12.1 Scope and application
This Protocol summarizes a set of
procedures and tolerances for weighing
objects in the range of 0 to 1,000 g with a
resolution of 0.001 g. This protocol only
addresses balance operations, it does not
address project requirements for
equilibration, sample hold time limits,
sample collection etc.
12.2 Summary of method
The balance is zeroed and calibrated using
procedures defined herein. Object weight
determinations are conducted along with
control object weight determinations, zero
checks, calibration checks, sensitivity checks,
and replicate weightings in a defined
sequence designed to control and
quantitatively characterize precision and
accuracy.
12.3 Definitions
N/A.
12.4 Interferences
Object weights can be affected by
temperature and relative humidity of their
environment, air currents, static electricity,
gain and loss of water vapor, gain or loss of
and loss of volatile compounds directly from
the sample or from contaminants such as
finger prints, marker ink, and adhesive tape.
Contamination, transfer of material to or
from the samples, is controlled by
conducting operations inside a clean area
dedicated to the purpose and having a
filtered laminar air flow where possible; by
wearing gloves while handling all samples
and related balance equipment; by using
forceps to handle small objects, and by
keeping the balance and all related
equipment inside the clean area.
Air currents are controlled by conducting
weighing operations inside a closed chamber
or glove box and by allowing the substrates
to reach temperature and relative humidity
equilibrium. The chamber is maintained at
40 percent relative humidity and 25 °C by a
continuous humidity and temperature
control system. The temperature and RH
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conditions are recorded at least once per
weighing sessions. Equilibration times for
samples that are particularly sensitive to
humidity or to loss of semi-volatiles species
are specified by project requirements.
Static electric charges on the walls of the
balance and the weighed objects, including
samples, controls, and calibration weights,
can significantly affect balance readings.
Static is avoided by the operator ground
himself and test objects as described in the
balance manual.
12.5 Personnel health and safety
N/A
12.6 Equipment and supplies
• Filtered, temperature and humidity
controlled weighing chamber.
• Precision Balance
• Plastic forceps
• Nylon fabric gloves.
• Working calibration weights: ANSI Class
2, 1000g and 500 g
• Working sensitivity weight: 50 mg
• Reference objects: references are one or
more objects that are typical of the objects to
be weighed during a project, but that are
stored permanently inside the balance glove
box. Reference objects are labeled Test1,
Test2, Test3, etc.
12.7 Reagents and standard
N/A
12.8 Sample collection, preservation, and
storage
N/A. See relevant project requirements and
SOPs.
12.9 Quality control
Data quality is controlled by specifying
frequencies and tolerances for Zero,
Calibration, Linearity, and Sensitivity checks.
If checks do not meet tolerance criteria, then
samples must be re-weighed. In addition, the
procedures specify frequencies for Control
Object Checks.
Data quality is quantitatively characterized
using Zero Check, Calibration Check, and
Control Check data. These data are
summarized monthly in statistics and QC
charts.
12.10 Calibration and standardization
The absolute accuracy of the balance is
established by calibration against an ANSI
Class 2, stainless steel working weight:
1000.000 g ± 0.0025 g. Linearity is
established checking the midpoint against an
ANSI Class 2 stainless steel working weight:
500.000 ± 0.0012 g. Sensitivity is established
using and ANSI Class 2 stainless steel or
aluminum working weight: 50 mg. Precision
is checked by periodically checking zero,
calibration, and reference object weights.
12.11 Procedure
12.11.1 Overview of Weighing Sequence
Weighing a series of substrates consists of
performing the following procedures in
sequence, while observing the procedures for
handling and the procedures for reading the
balance:
1. Initial Adjustment
2. Weigh eight samples
3. Zero Check
4. Weigh eight samples
5. Zero Check
6. Weigh eight samples
7. Calibration Check
8. Return to step 2.
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9. If less than 24 cans are weighed, perform
a final Calibration Check at the end of
weighing.
This sequence is interrupted and samples
are reweighed if QC check tolerances are not
met. Each of these procedures along with
procedures for handling and reading the
balance are described below. The QC
tolerances referred to in these procedures are
listed in Table 1.
12.11.2 Handling
1. Never touch samples, weights, balance
pans, etc. with bare hands. Wear powder free
gloves to handle the weights, controls, and
samples.
12.11.3 Reading the Balance
1. Close the door. Wait for the balance
stabilization light to come on, and note the
reading.
2. Watch the balance reading for 30 sec
(use a clock). If the reading has not changed
by more than 0.001 g from the reading noted
in step 1, then record the reading observed
at the end of the 30 sec period.
3. If the reading has drifted more than
0.001 g note the new balance reading and go
to step 2.
4. If the balance reading is flickering back
and forth between two consecutive values
choose the value that is displayed more often
than the other.
5. If the balance reading is flickering
equally back and forth between two
consecutive values choose the higher value.
12.11.4 Initial Adjustment
1. Empty the sample pan Close the door.
Select Range 1000 g
2. Wait for a stable reading
3. Record the reading with QC code IZC
(initial zero check)
4. Press the Tare button
5. Record the reading in the logbook with QC
code IZA (initial zero adjust)
6. Place the 1,000 g working calibration
weight on the balance pan
7. Wait for a stable reading.
8. Record the reading with QC code ICC
(initial cal check)
9. Press the Calibrate button
10. Record the reading with QC code ICA
(initial cal adjust)
11. Remove the calibration weight.
12. Wait for a stable reading.
13. Record the reading with QC code IZC.
14. If the zero reading exceeds ± 0.002 g, go
to step 4.
15. Place the 500 g calibration weight on the
balance pan
16. After a stable reading, record the reading
with QC code C500. Do not adjust the
balance.
17. Add the 0.050 g weight to 500 g weight
on the balance pan.
18. After a stable reading, record the reading
with QC code C0.05. Do not adjust the
balance.
19. Weigh reference object TEST1, record
reading with QC code T1.
20. Weigh the reference object TEST2,
TEST3, etc. that is similar in weight to
the samples that you will be weighing.
Record with QC code T2, T3, etc.
12.11.5 Zero Check
1. Empty the sample pan. Close the door.
2. Wait for a stable reading
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3. Record the reading with QC code ZC
4. If the ZC reading is less than or equal to
the zero adjustment tolerance shown in
Table 1, return to weighing and do not
adjust the zero. If the ZC reading
exceeded the zero adjustment tolerance,
proceed with steps 5 through 7.
5. Press the Tare button
6. Record the reading in the logbook with QC
code ZA.
7. If the ZC reading exceeded the zero reweigh tolerance, change the QC code
recorded in step 3 from ZC to FZC. Then
enter a QC code of FZ into the QC code
column of all samples weights obtained
after the last valid zero check. Re- weigh
all of those samples, recording new data
in new rows of the logbook.
12.11.6 Calibration Check
1. First, follow procedures for Zero Check. If
the ZC was within tolerance, tare the
balance anyway (i.e., follow steps 5 and
6 of the Zero Check method)
2. Place the 1,000 g working calibration
weight on the sample pan, wait for a
stable reading.
3. Record the reading with QC code C1000
4. If the C1000 reading is less than or equal
to the calibration adjustment tolerances,
skip steps 5 through 8 and proceed to
step 9. Do not adjust the calibration.
5. If the C100 reading exceeded the
calibration adjust tolerance, press the
Calibrate button.
6. Record the reading in the logbook with QC
code CA
7. Perform a Zero Check (follow the Zero
Check method)
8. If the C1000 reading exceeded the
calibration re-weigh tolerance, change
the code recorded in step 3 from C1000
to FC1000. Enter FC into the QC column
for all sample weights obtained after the
last valid calibration check. Re-weigh all
of those samples, recording new data in
new rows of the logbook.
12.11.7 Replicate Weighing Check
1. This protocol does not include reweigh
samples to obtain replicates. The projects for
which this protocol is intended already
include procedures multiple weightings of
each sample.
TABLE 1—QC TOLERANCES AND FREQUENCIES FOR BALANCE PROTOCOL
Reading Tolerance:
0.001 g, stable for 30 sec.
Adjustment Tolerances:
Zero: ..........................
Calibration: ................
Controls: ....................
Replicates: ................
¥0.003 to +0.003 g.
999.997 to 1000.003
g.
none.
none.
Re-weigh Tolerances:
Zero: ..........................
Calibration: ................
Controls: ....................
Replicates: ................
E:\FR\FM\18NOR5.SGM
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¥0.005 to +0.005 g.
999.995 to 1000.005
g.
none.
none.
Federal Register / Vol. 81, No. 223 / Friday, November 18, 2016 / Rules and Regulations
TABLE 1—QC TOLERANCES AND FREQUENCIES
FOR
BALANCE PROTOCOL—Continued
Reference Objects:
Test 1—A reference object weighing about
400 g.
Test 2—A reference object weighing about
200 g.
Test 3—A reference object weighing about
700 g.
QC Frequencies:
Zero Checks: .............
Calibration Checks: ...
Repeat weighings: ....
mstockstill on DSK3G9T082PROD with RULES5
Control objects: .........
once per 8 samples.
once per 24 samples.
none (test method includes replicate determinations).
once per weighing
session.
12.12 Data analysis and calculations
For Zero Checks, let Z equal the recorded
Zero Check value. For control checks let T1,
T2, etc. equal the recorded value for control
object Test 1, Test 2, etc. For Calibration
Checks, let C1000 equal C1000 reading minus
1000, M = C500—500, S = .C.050—C500—
.050. For Replicate Checks, let D equal the
loss that occurred between the first and
second measurements. In summary:
T1 = T1
T2 = T2
T3 = T3
Z = ZC—0
C = C1000—1000
M = C500—500
G = C050—C500—.050
Tabulate the mean and standard deviation
for each of the following: Z, C, M, G. T1, T2,
T3. Depending on the number of operators
using the balance and the number of
protocols in use, analyze the data by
subcategories to determine the effects of
balance operator and protocol. Each of these
standard deviations, SZ, SC, etc. is an
estimate of the precision of single weight
measurement.
For Z, C, M, and G, check the mean value
for statistical difference from 0. If the means
are statistically different than zero,
troubleshooting to eliminate bias may be
called for. For Z, C, M, G, T1, T2, T3, check
that the standard deviations are all
comparable. If there are systematic
differences, then troubleshooting to eliminate
the problem may be called for.
Note that the precision of a weight gain,
involves two weight determinations, and
therefore is larger than S by a factor of sqrt(2).
On the other hand replicate weighings
improves the precision of the determinations
by a factor of sqrt(N). If N = 2, i.e., duplicates,
then the factors cancel each other.
To estimate the overall uncertainty in a
weight determination, a conservative
estimate might be to combine the imprecision
VerDate Sep<11>2014
23:27 Nov 17, 2016
Jkt 241001
contributed by the zero with the imprecision
contributed by the calibration.
U = Sqrt(SZ2 + SC2)
The uncertainty in a weight gain from N
replicates is then given by:
Ugain = Sqrt(2) × Sqrt(SZ2 + SC2)/Sqrt(N)
But due to the balance adjustment and
reweigh tolerances, we expect SZ to
approximately equal SC, to approximately
equal SM, etc. tolerances, so that the equation
above becomes:
Ugain = 2 × S/Sqrt(N)
Where S is any individual standard
deviation; or better, a pooled standard
deviation.
12.13 Method performance
The data necessary to characterize the
accuracy and precision of this method are
still being collected. The method is used
primarily to weigh objects before and after a
period of soaking to determine weight loss by
subtraction. Given the reweigh tolerances, we
expect that the precision of weight gain
determinations will be on the order of 0.006
g at the 1-sigma level. Bias in the weight gain
determination, due to inaccuracy of the
calibration weight and to fixed non-linearity
of the balance response is on the order 0.005
percent of the gain.
12.14 Pollution prevention
When discharging half the can contents
during can preparation, do not vent the
contents of the small can to the atmosphere.
Use an automotive recovery machine to
transfer small can contest to a recovery
cylinder.
12.15 Waste management
Dispose of the contents of the recycle
cylinder through a service that consolidates
waste for shipment to EPA certified facilities
for reclaiming or destruction.
Section 13. Compensation of Weight Data for
Buoyancy and Gravity Effects
13.1 Gravity
Variations in gravity are important only
when weighing objects under different
gravitational fields, i.e., at different locations
or at different heights. Since the balance
procedures calibrate the balance against a
known mass (the calibration ‘‘weight’’) at the
same location where sample objects are
weighed, there is no need to correct for
location. Although both the sample and the
calibration weight are used at the same
location, there will be a difference in the
height of the center of gravity of the sample
object (small can) and the center of gravity
of the reference mass (calibration weight).
However, this difference in height is
maintained during both the initial weights
and final weights, affecting the initial and
final weights by the same amount, and
affecting the scale of the weight difference by
only a few ppm. In any event, the magnitude
of this correction is on the order of 0.3 ug per
kg per mm of height difference. A difference
on the order of 100 mm would thus yield a
PO 00000
Frm 00125
Fmt 4701
Sfmt 9990
82395
weight difference of about 0.03 mg, which is
insignificant compared to our balance
resolution which is 0.001 g or 1 mg.
Based on the discussion above, no
corrections for gravity are necessary when
determining weight changes in small cans.
13.2 Buoyancy
Within a weighing session, the difference
in density between the sample object and the
calibration weight will cause the sample
object weight value to differ from its mass
value due to buoyancy. For a 1-liter object in
air at 20 °C and at 1 atm, the buoyant force
is about 1.2 g. The volume of a 1 kg object
with a density of 8 g/cm3 (e.g., a calibration
weight), is about 0.125 liters, and the
buoyancy force is about 0.15 g. Variations in
air density will affect both of these values in
proportion. The net value being affected by
variations in air density is thus on the order
of 1.2 ¥ 0.15 = 1.05 g. Air density can vary
up or down by 2 percent or more due to
variations in barometric pressure,
temperature, and humidity. The buoyancy
force will then vary up or down by 0.02 g,
or 20 mg. This is significant compared to the
weight change expected after one week for a
can leaking at 3 grams per year, which is 57
mg.
Based on the discussion above, buoyancy
corrections must be made.
Variables measured or calculated:
Vcan = volume of can (cm3). Estimate to
within 10 percent by measuring the can
dimensions or by water displacement.
Error in the can volume will cause an
error in the absolute amount of the
buoyancy force, but will have only a
small effect on the change in buoyancy
force from day to day.
Wcan = nominal weight of a can (g), used to
calculate the nominal density of the can.
rcan = nominal density of a small can (g/cm3).
The nominal values can be applied to
corrections for all cans. It is not
necessary to calculate a more exact
density for each can. Calculate once for
a full can and once for a half full can as
follows:
rcan = Wcan /Vcan
T = Temperature in balance chamber (degrees
Celsius).
RH = Relative humidity in balance chamber
(expressed a number between 0 and 100).
Pbaro = Barometric pressure in balance
chamber (millibar). Use actual pressure,
NOT pressure adjusted to sea level.
rair = density of air in the balance chamber
(g/cm3). Calculate using the following
approximation:
rair = 0.001*[0.348444*Pbaro¥(RH/100) ×
(0.252 × T¥2.0582)]/(T + 273.15)
rref = the reference density of the calibration
weight (g/cm3). Should be 8.0 g/cm3.
Equation to correct for buoyancy: Wcorrected =
Wreading × (1—rair/rref)/(1—rair/rcan)
[FR Doc. 2016–24215 Filed 11–17–16; 8:45 am]
BILLING CODE 6560–50–P
E:\FR\FM\18NOR5.SGM
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Agencies
[Federal Register Volume 81, Number 223 (Friday, November 18, 2016)]
[Rules and Regulations]
[Pages 82272-82395]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-24215]
[[Page 82271]]
Vol. 81
Friday,
No. 223
November 18, 2016
Part V
Book 2 of 3 Books
Pages 82271-82492
Environmental Protection Agency
-----------------------------------------------------------------------
40 CFR Part 82
Protection of Stratospheric Ozone: Update to the Refrigerant Management
Requirements Under the Clean Air Act; Final Rule
Federal Register / Vol. 81 , No. 223 / Friday, November 18, 2016 /
Rules and Regulations
[[Page 82272]]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 82
[EPA-HQ-OAR-2015-0453; FRL-9950-28-OAR]
RIN 2060-AS51
Protection of Stratospheric Ozone: Update to the Refrigerant
Management Requirements Under the Clean Air Act
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The Clean Air Act prohibits the knowing release of ozone-
depleting and substitute refrigerants during the course of maintaining,
servicing, repairing, or disposing of appliances or industrial process
refrigeration. The existing regulations require that persons
maintaining, servicing, repairing, or disposing of air-conditioning and
refrigeration equipment containing more than 50 pounds of refrigerant
observe certain service practices that reduce emissions of ozone-
depleting refrigerant. This rule updates those existing requirements as
well as extends them, as appropriate, to non-ozone depleting substitute
refrigerants, such as hydrofluorocarbons. Updates include strengthened
leak repair requirements, recordkeeping requirements for the disposal
of appliances containing more than five and less than 50 pounds of
refrigerant, revisions to the technician certification program, and
revisions for improved readability and compliance. As a result, this
action reduces emissions of ozone-depleting substances and gases with
high global warming potentials.
DATES: This final rule is effective on January 1, 2017. The
incorporation by reference of certain publications listed in the
regulations is approved by the Director of the Federal Register as of
on January 1, 2017. This rule contains information collection
activities that have been submitted for approval to the Office of
Management and Budget (OMB) under the Paperwork Reduction Act (PRA).
Under the PRA, comments on the information collection provisions are
best assured of consideration if the Office of Management and Budget
(OMB) receives a copy of your comments on or before December 19, 2016.
ADDRESSES: The EPA has established a docket for this action under
Docket ID No. EPA-HQ-OAR-2015-0453. All documents in the docket are
listed on the www.regulations.gov Web site. Although listed in the
index, some information is not publicly available, e.g., CBI or other
information whose disclosure is restricted by statute. Certain other
material, such as copyrighted material, is not placed on the Internet
and will be publicly available only in hard copy form. Publicly
available docket materials are available electronically through
www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Jeremy Arling, Stratospheric
Protection Division, Office of Atmospheric Programs, Mail Code 6205T,
1200 Pennsylvania Avenue NW., Washington, DC 20460; telephone number
(202) 343-9055; email address arling.jeremy@epa.gov. You may also visit
www.epa.gov/section608 for further information about refrigerant
management, other Stratospheric Ozone Protection regulations, the
science of ozone layer depletion, and related topics.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. General Information
A. Does this action apply to me?
B. What action is the Agency taking?
C. What is the Agency's authority for taking this action?
D. What are the incremental costs and benefits of this action?
E. Judicial Review
II. Background
A. What are ozone-depleting substances?
B. What is the National Recycling and Emission Reduction
Program?
C. What developments have occurred since EPA first established
the National Recycling and Emission Reduction Program?
D. What are the goals of this rule?
E. What are the major revisions being finalized in this rule?
F. Enforcement of Subpart F Regulations
G. Incorporation by Reference
III. EPA's Authority Under the Clean Air Act
A. Summary of EPA's Authority for the Revisions to Subpart F
B. Comments and Responses Related to EPA's Authority
IV. The Revisions Finalized in This Rule
A. Revisions to the Definitions in Sec. 82.152
B. Revisions to the Venting Prohibition in Sec. 82.154(a)
C. Revisions to the Refrigerant and Appliance Sales Restrictions
in Sec. 82.154
D. Revisions to the Safe Disposal Provisions in Sec. 82.155
E. Revisions to the Evacuation Requirements in Sec. 82.156
F. Revisions to the Leak Repair Requirements in Sec. 82.157
G. Revisions to the Standards for Recovery and/or Recycling
Equipment in Sec. 82.158
H. Revisions to the Standards for Equipment Testing
Organizations in Sec. 82.160
I. Revisions to the Technician Certification Requirements in
Sec. 82.161
J. Revisions to the Technician Certification Program
Requirements in Sec. 82.161
K. Revisions to the Reclamation Requirements in Sec. 82.164
L. Revisions to the Recordkeeping and Reporting Requirements in
Sec. 82.166
M. Effective and Compliance Dates
V. Possible Future Revisions to Subpart F
VI. Economic Analysis
VII. Statutory and Executive Order Reviews
A. Executive Order 12866: Regulatory Planning and Review and
Executive Order 13563: Improving Regulation and Regulatory Review
B. Paperwork Reduction Act
C. Regulatory Flexibility Act (RFA)
D. Unfunded Mandates Reform Act (UMRA)
E. Executive Order 13132: Federalism
F. Executive Order 13175: Consultation and Coordination With
Indian Tribal Governments
G. Executive Order 13045: Protection of Children From
Environmental Health and Safety Risks
H. Executive Order 13211: Actions That Significantly Affect
Energy Supply, Distribution, or Use
I. National Technology Transfer and Advancement Act
J. Executive Order 12898: Federal Actions To Address
Environmental Justice in Minority Populations and Low-Income
Populations
K. Congressional Review Act (CRA)
List of Acronyms
AHRI Air Conditioning, Heating, and Refrigeration Institute
ARI Air Conditioning and Refrigeration Institute (now AHRI)
ASHRAE American Society of Heating, Refrigerating and Air-
Conditioning Engineers, Inc.
CAA Clean Air Act
CARB California Air Resources Board
CBI Confidential Business Information
CFC Chlorofluorocarbon
CO2 Carbon Dioxide
GHG Greenhouse Gas
GWP Global Warming Potential
HCFC Hydrochlorofluorocarbon
HFC Hydrofluorocarbon
HFO Hydrofluoroolefin
IPCC Intergovernmental Panel on Climate Change
IPR Industrial Process Refrigeration
MMTCO2eq Million Metric Tons Carbon Dioxide Equivalent
MVAC Motor Vehicle Air Conditioner
NAICS North American Industry Classification System
ODP Ozone depletion potential
ODS Ozone-depleting substance
PFC Perfluorocarbon
RCRA Resource Conservation and Recovery Act
RMP Refrigerant Management Program
SCAQMD South Coast Air Quality Management District
SNAP Significant New Alternatives Policy
UL Underwriters Laboratories
[[Page 82273]]
I. General Information
A. Does this action apply to me?
Categories and entities potentially regulated by this action
include those who own, operate, maintain, service, repair, recycle, or
dispose of refrigeration and air-conditioning appliances and
refrigerants, as well as entities that manufacture or sell
refrigerants, products and services for the refrigeration and air-
conditioning industry, including motor vehicle air conditioning.
Regulated entities include, but are not limited to, the following:
Table 1--Potentially Affected Entities
------------------------------------------------------------------------
North American
industry
Category classification Examples of regulated
system (NAICS) entities
code
------------------------------------------------------------------------
Industrial Process 111, 11251, Owners or operators
Refrigeration (IPR). 11511, 21111, of refrigeration
2211, 2212, equipment used in
2213, 311, 3121, agriculture and crop
3221, 3222, production, oil and
32311, 32411, gas extraction, ice
3251, 32512, rinks, and the
3252, 3253, manufacture of
32541, 3256, frozen food, dairy
3259, 3261, products, food and
3262, 3324, beverages, ice,
3328, 33324, petrochemicals,
33341, 33361, chemicals,
3341, 3344, machinery, medical
3345, 3346, equipment, plastics,
3364, 33911, paper, and
339999. electronics
Commercial Refrigeration...... 42374, 42393, Owners or operators
42399, 4242, of refrigerated
4244, 42459, warehousing and
42469, 42481, storage facilities,
42493, 4451, supermarkets,
4452, 45291, grocery stores,
48422, 4885, warehouse clubs,
4931, 49312, supercenters,
72231. convenience stores,
and refrigerated
transport
Comfort Cooling............... 45211, 45299, Owners or operators
453998, 512, of air-conditioning
522, 524, 531, equipment used in
5417, 551, 561, the following:
6111, 6112, hospitals, office
6113, 61151, buildings, colleges
622, 7121, and universities,
71394, 721, 722, metropolitan transit
813, 92. authorities, real
estate rental &
leased properties,
lodging and food
services, property
management, schools,
and public
administration or
other public
institutions
Plumbing, Heating, and Air- 238220, 811111, Plumbing, heating,
Conditioning Contractors. 81131, 811412. and air-conditioning
contractors, and
refrigerant recovery
contractors,
including automotive
repair
Manufacturers and Distributors 325120, 441310, Automotive parts and
of Small Cans of Refrigerant. 447110. accessories stores
and industrial gas
manufacturers
Reclaimers.................... 325120, 423930, Industrial gas
424690, 562920, manufacturers,
562212. recyclable material
merchant
wholesalers,
materials recovery
facilities, solid
waste landfills, and
other chemical and
allied products
merchant wholesalers
Disposers and Recyclers of 423990, 562212, Materials recovery
Appliances. 562920. facilities, solid
waste landfills, and
other miscellaneous
durable goods
merchant wholesalers
Refrigerant Wholesalers....... 325120, 42, Industrial gas
424690. manufacturers, other
chemical and allied
products merchant
wholesalers,
wholesale trade
Certifying Organizations...... 541380........... Environmental test
laboratories and
services
------------------------------------------------------------------------
This table is not intended to be exhaustive, but rather provides a
guide for readers regarding the types of entities that could
potentially be regulated by this action. Other types of entities not
listed in the table could also be affected. To determine whether your
facility, company, business organization, or other entity is regulated
by this action, you should carefully examine the regulations in subpart
F and this rule. If you have questions regarding the applicability of
this action to a particular entity, consult the person listed in the
FOR FURTHER INFORMATION CONTACT section.
B. What action is the Agency taking?
The regulations in 40 CFR part 82, subpart F (subpart F) that are
in effect before this final action takes effect (often referred to in
this notice as the ``prior'' or ``previous'' regulations) require that
persons servicing, maintaining, repairing, or disposing of air-
conditioning and refrigeration equipment observe certain service
practices that reduce emissions of ozone-depleting refrigerant.
Specifically, these provisions include: Restricting the servicing of
appliances and the sale of refrigerant to certified technicians;
specifying the proper evacuation levels before opening an appliance;
requiring the use of certified refrigerant recovery and/or recycling
equipment; requiring the maintenance and repair of appliances that meet
size and leak rate thresholds; requiring that refrigerant be removed
from appliances prior to disposal; requiring that appliances have a
servicing aperture or process stub to facilitate refrigerant recovery;
requiring that refrigerant reclaimers be certified in order to reclaim
and sell used refrigerant; and establishing standards for technician
certification programs, recovery equipment, and quality of reclaimed
refrigerant.
This rule updates the prior refrigerant management requirements in
subpart F that apply to ozone-depleting refrigerants. It also extends
those requirements, as appropriate, to non-ozone depleting substitute
refrigerants that are not exempt from the venting prohibition,
including but not limited to hydrofluorocarbons (HFCs), in order to
interpret, explain, and enforce the venting prohibition.
C. What is the Agency's authority for taking this action?
Section 608 of the CAA provides EPA authority for these revisions
to the regulations found at 40 CFR part 82, subpart F. EPA's authority
for this rulemaking is supplemented by section 301(a), which provides
authority to ``prescribe such regulations as are necessary to carry out
[the EPA Administrator's] functions under this Act,'' and section 114,
which provides authority for the EPA Administrator to require
recordkeeping and reporting in carrying out any provision of the CAA
(with certain exceptions that do not apply here). More detail on EPA's
authority for this action is provided in subsequent sections.
[[Page 82274]]
D. What are the incremental costs and benefits of this action?
The revisions in this rule require certain businesses to take
actions that have associated costs, such as conducting leak
inspections, repairing leaks, and keeping records. Total annual
incremental compliance costs associated with this rule are estimated to
be $24.5 million per year in 2014 dollars using a 7 percent discount
rate. Costs were modeled for a single typical year in which all the
requirements were in effect, based on the appliance distribution
modeled for 2015. Total annual operating savings associated with
reduced refrigerant use are estimated to be $44 million; thus
incremental compliance costs and refrigerant savings combined are
estimated to be approximately $19.5 million per year. A detailed
description of the comments received on the proposed analysis can be
found in Section VI of this preamble as well as the response to
comments document found in the docket. A full description of the
technical analysis can be found in the document Analysis of the
Economic Impact and Benefits of Final Revisions to the National
Recycling and Emission Reduction Program in the docket.
EPA estimates that this rule will prevent damage to the
stratospheric ozone layer by reducing emissions of ozone-depleting
refrigerants by approximately 114 metric tons per year, weighted by the
ozone-depletion potential (ODP) of the gases emitted. Avoided emissions
of ozone-depleting refrigerants and non-ozone depleting substitutes
will also reduce climate impacts because most of these refrigerants are
potent greenhouse gases. Weighted by their global warming potentials
(GWP) \1\, EPA estimates that the revisions will prevent annual
emissions of greenhouse gases equivalent to 7.3 million metric tons of
carbon dioxide (MMTCO2eq). The reductions in emissions of
GHGs and ODS have benefits for human health and the environment because
of the threats these substances pose to human health and the
environment. Such threats are discussed further in Section II.D of this
notice.
---------------------------------------------------------------------------
\1\ Unless otherwise stated, GWPs stated in this document are
100-year integrated GWPs, relative to a GWP of 1 for carbon dioxide,
as reported in IPCC, 2007. Climate Change 2007: The Physical Science
Basis. Contribution of Working Group I to the Fourth Assessment
Report of the Intergovernmental Panel on Climate Change [Solomon,
S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor
and H.L. Miller (eds.)]. Cambridge University Press, Cambridge,
United Kingdom and New York, NY, USA. This document is accessible at
www.ipcc.ch/publications_and_data/ar4/wg1/en/contents.html. For
blends of multiple compounds, we are weighting the GWP of each
component by mass percentage in the blend.
Table 2--Annual GHG and ODS Emissions Avoided
----------------------------------------------------------------------------------------------------------------
GHG emissions avoided (MTCO2eq) ODS emissions
------------------------------------------------ avoided (ODP-
Rule component weighted MT)
HFC ODS Total ---------------
ODS
----------------------------------------------------------------------------------------------------------------
Leak Repair and Inspection .............. .............. .............. ..............
Comfort Cooling................................. 1,425,000 2,487,000 3,912,000 78
Commercial Refrigeration........................ 1,246,000 1,077,000 2,323,000 30
IPR............................................. 275,000 169,000 444,000 5
Reporting & Recordkeeping .............. .............. .............. ..............
Self-sealing Valves on Small Cans 657,000 .............. 657,000 ..............
---------------------------------------------------------------
Total....................................... 3,603,000 3,733,000 7,336,000 114
----------------------------------------------------------------------------------------------------------------
Totals may not sum due to independent rounding.
Details of the methods used to estimate the benefits are discussed
in Section VI of this notice and the Analysis of the Economic Impact
and Benefits of Final Revisions to the National Recycling and Emission
Reduction Program in the docket.
E. Judicial Review
Under CAA section 307(b)(1), judicial review of this final action
is available only by filing a petition for review in the U.S. Court of
Appeals for the District of Columbia Circuit by January 17, 2017. This
final action is a nationally applicable regulation and has nationwide
scope and effect because it makes revisions to the EPA's regulations
for the National Recycling and Emission Reduction Program found at 40
CFR part 82, subpart F, which are nationally applicable regulations
that have nationwide scope and effect. Under CAA section 307(d)(7)(B),
only an objection to this final action that was raised with reasonable
specificity during the period for public comment can be raised during
judicial review. This section also provides a mechanism for EPA to
convene a proceeding for reconsideration, ``[i]f the person raising an
objection can demonstrate to [EPA] that it was impracticable to raise
such objection within [the period for public comment] or if the grounds
for such objection arose after the period for public comment (but
within the time specified for judicial review) and if such objection is
of central relevance to the outcome of this rule.'' Any person seeking
to make such a demonstration to us should submit a Petition for
Reconsideration to the Office of the Administrator, Environmental
Protection Agency, Room 3000, William Jefferson Clinton Building, 1200
Pennsylvania Ave. NW., Washington, DC 20460, with a copy to the person
listed in the preceding FOR FURTHER INFORMATION CONTACT section, and
the Associate General Counsel for the Air and Radiation Law Office,
Office of General Counsel (Mail Code 2344-A), Environmental Protection
Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460.
II. Background
A. What are ozone-depleting substances?
The stratospheric ozone layer protects life on Earth from the sun's
harmful ultraviolet (UV) radiation. ODS are generally man-made
chemicals that, when transported by winds into the stratosphere,
release chlorine or bromine and damage that protective ozone layer. ODS
are used as refrigerants, solvents, foam blowing
[[Page 82275]]
agents, aerosol propellants, fire suppression agents, and in other
smaller applications. The Clean Air Act divides ODS into two
categories: Class I and class II substances. The production of new
class I ODS, which includes chlorofluorocarbons (CFCs), methyl
chloroform, carbon tetrachloride, halons, and other compounds has been
banned for over a decade. The production of new class II substances,
which are all hydrochlorofluorocarbons (HCFCs), will be phased down
99.5 percent by 2020.
The initial concern about the ozone layer in the 1970s led to a ban
on the use of CFCs as aerosol propellants in several countries,
including the United States. In 1985, the Vienna Convention on the
Protection of the Ozone Layer was adopted to formalize international
cooperation on this issue. Additional efforts resulted in the adoption
of the Montreal Protocol on Substances that Deplete the Ozone Layer in
1987. Today, all Parties to the Montreal Protocol have agreed to phase
out the production and consumption of ODS controlled by the Protocol.
B. What is the National Recycling and Emission Reduction Program?
Section 608 of the CAA bears the title ``National Recycling and
Emissions Reduction Program.'' Under the structure of section 608, this
program has three main components. First, section 608(a) requires EPA
to establish standards and requirements regarding use and disposal of
class I and II substances, including a comprehensive refrigerant
management program to limit emissions of ozone-depleting refrigerants.
This program is to include regulations that reduce the use and
emissions of class I and II substances to the lowest achievable level
and that maximize the recapture and recycling of such substances. The
second component, section 608(b), requires that the regulations issued
pursuant to subsection (a) contain requirements for the safe disposal
of class I and class II substances. The third component, section
608(c), prohibits the knowing venting, release, or disposal of ozone-
depleting refrigerants and their substitutes during the maintenance,
service, repair, or disposal of air-conditioning and refrigeration
appliances or IPR. This prohibition is also referred to as the
``venting prohibition'' in this action. Section 608 is described in
greater detail in Section III.
EPA first issued regulations under section 608 of the CAA on May
14, 1993 (58 FR 28660, ``1993 Rule''), to establish the national
refrigerant management program for ozone-depleting refrigerants
recovered during the maintenance, service, repair, and disposal of air-
conditioning and refrigeration appliances. These regulations were
intended to substantially reduce the use and emissions of ozone-
depleting refrigerants.
The regulations first established in the 1993 Rule require that
persons servicing air-conditioning and refrigeration equipment
containing an ozone-depleting refrigerant observe certain practices
that reduce emissions. They also established requirements for
refrigerant recovery equipment, reclaimer certification, and technician
certification, and restricted the sale of refrigerant so that only
certified technicians could purchase it. In addition, they required the
removal of ODS from appliances prior to disposal, and that all air-
conditioning and refrigeration equipment using an ODS be provided with
a servicing aperture or process stub to facilitate refrigerant
recovery.
The 1993 Rule also established a requirement to repair leaking
appliances containing 50 or more pounds of ODS refrigerant. The rule
set an annual leak rate of 35 percent for commercial refrigeration
appliances and IPR and 15 percent for comfort cooling appliances. If
the applicable leak rate was exceeded, the appliance must be repaired
within 30 days.
EPA revised these regulations through subsequent rulemakings
published on August 19, 1994 (59 FR 42950), November 9, 1994 (59 FR
55912), August 8, 1995 (60 FR 40420), July 24, 2003 (68 FR 43786),
March 12, 2004 (69 FR 11946), January 11, 2005 (70 FR 1972), May 23,
2014 (79 FR 29682), and April 10, 2015 (80 FR 19453). EPA also issued
proposed rules to revise the regulations in subpart F on June 11, 1998
(63 FR 32044), elements of which were not finalized, and on December
15, 2010 (75 FR 78558), which was also not finalized. EPA is
withdrawing and therefore not finalizing the 2010 proposed rule.
Instead, EPA re-proposed elements of both the 1998 and the 2010
proposed rules in the notice of proposed rulemaking (80 FR 19453) for
this rule.
The August 19, 1994, rule amended specific definitions, required
practices, and reporting and recordkeeping requirements, as well as
adopted industry standards for reclaimed ODS refrigerants.
The November 9, 1994, rule clarified the conditions under which
technician certification programs were grandfathered, allowing
technicians who had participated in voluntary technician training and
certification programs prior to the publication of the 1993 Rule to
receive formal certification. The rule also clarified the scope of the
technician certification requirement and provided a limited exemption
from certification requirements for apprentices.
The August 8, 1995, rule responded to a settlement agreement
between EPA and the Chemical Manufacturers Association to give
additional flexibility to repair or retrofit IPR appliances containing
ODS. EPA allowed owners or operators additional time beyond 30 days to
complete repairs and more than one year to retrofit appliances where
certain conditions applied (i.e., federally owned equipment located in
areas subject to radiological contamination, unavailability of
necessary parts for IPR, or instances where adherence to local, state,
or federal laws hinder immediate repairs for IPR). EPA also clarified
that purged refrigerants that have been captured and destroyed can be
excluded from the leak rate calculations.
The July 24, 2003, rule finalized portions of a proposed rulemaking
(61 FR 7858; February 29, 1996) that amended the recordkeeping aspects
of the section 608 technician certification program, refined aspects of
the refrigerant sales restriction, adopted updated versions of ARI
Standards 700 \2\ and 740 \3\, amended several definitions, and set
forth procedures for the revocation and/or suspension of approval to
certify technicians and refrigerant recovery and/or recycling equipment
and revocation and/or suspension procedures for certification as a
refrigerant reclaimer.
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\2\ The Air Conditioning and Refrigeration Institute Standard
700, Specification for Fluorocarbons and Other Refrigerants,
contains standards for the reclamation of used refrigerants.
\3\ The Air Conditioning and Refrigeration Institute Standard
740, Performance Rating of Refrigerant Recovery Equipment and
Recovery/Recycling Equipment, contains standards for the equipment
used to recover refrigerant from air-conditioning and refrigeration
appliances.
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The March 12, 2004, rule exempted from the venting prohibition
under section 608(c)(2) specific non-ozone depleting substances that
the Agency found did not pose a threat to the environment (69 FR
11946). Notably, EPA did not exempt HFC or perfluorocarbon (PFC)
refrigerants from the venting prohibition. The rule clarified that
regulations affecting the handling and sales of ozone-depleting
refrigerants apply to blends that contain an ODS.
The January 11, 2005, rule clarified that the leak repair
requirements also apply to blends that contain an ODS (70
[[Page 82276]]
FR 1927). The rule amended the required practices and associated
reporting/recordkeeping requirements and clarified certain leak repair
requirements.
On December 15, 2010 (75 FR 78558, ``proposed 2010 Leak Repair
Rule''), EPA proposed to create a streamlined set of leak repair
requirements that are applicable to all types of appliances containing
50 or more pounds of ozone-depleting refrigerant. The rule also
proposed to reduce the leak repair rates. EPA did not finalize that
rule and EPA has withdrawn that proposal through this rulemaking,
although, as noted above, EPA also re-proposed elements of that
proposal in the notice of proposed rulemaking for this rule.
Finally, on May 23, 2014 (79 FR 29682), and April 10, 2015 (80 FR
19453), EPA expanded the list of substitute refrigerants that EPA has
exempted from the CAA venting prohibition to include certain
hydrocarbons in specific end-uses.
C. What developments have occurred since EPA first established the
National Recycling and Emission Reduction Program?
1. Phaseout of CFCs and HCFCs
In 1993, when EPA established the refrigerant management
requirements of subpart F, CFCs and HCFCs were the most commonly used
refrigerants, depending on the specific application. Just six months
prior, in November 1992, the Parties to the Montreal Protocol
accelerated the phaseout schedule for CFCs through the Copenhagen
Amendment, so that there would be a complete phaseout by 1996. The
Copenhagen Amendment also established a phaseout schedule for HCFCs.
The schedule for HCFCs was later amended and now calls for a 35 percent
reduction in production and consumption from each Article 2 Party's
(developed country's) cap by 2004, followed by a 75 percent reduction
by 2010, a 90 percent reduction by 2015, a 99.5 percent reduction by
2020, and a total phaseout by 2030. From 2020 to 2030, production and
consumption at only 0.5 percent of baseline is allowed solely for
servicing existing air-conditioning and refrigeration equipment.
The United States chose to implement the Montreal Protocol phaseout
schedule on a chemical-by-chemical basis. In 1993, as authorized by
section 606 of the CAA, EPA established a phaseout schedule that
eliminated HCFC-141b first and would greatly restrict HCFC-142b and
HCFC-22 next, due to their high ozone depletion potentials (ODPs),
followed by restrictions on all other HCFCs, and ultimately a complete
phaseout (58 FR 15014, March 18, 1993, and 58 FR 65018, December 10,
1993). EPA continues to issue allowances for the production and
consumption of HCFCs that have not yet been phased out. The allowance
levels reflect not only phaseout schedules but also use restrictions
under section 605(a) of the CAA. The phaseout schedule and allowance
levels can be found at 40 CFR part 82, subpart A.
EPA established the refrigerant management program shortly before
the CFC phaseout. Similarly, today's rule to update those regulations
closely precedes the phaseout of HCFCs. In 2020, production and
consumption of HCFCs will be limited to 0.5% of baseline, and may not
include HCFC-22, the most commonly used HCFC refrigerant. The reasons
for encouraging a viable CFC recycling program support the same
approach for HCFCs. The 1993 Rule discussed a 1990 advance notice of
proposed rulemaking regarding a national CFC recycling program. As the
1993 Rule discussed, that 1990 notice emphasized that recycling is
important because it would allow the continued use of equipment
requiring CFCs for service past the year in which CFC production is
phased out, thereby eliminating or deferring the cost of early
retirement or retrofit of such equipment. Because of the continued use
of these substances in existing equipment, recycling can serve as a
useful bridge to alternative products while minimizing disruption of
the current capital stock of equipment. (58 FR 28661).
More than twenty years later, with the experience gained through
the phaseout of CFCs, reducing emissions of HCFCs and maximizing their
recovery and reclamation remains just as important for ensuring the
continued viability of the current stock of equipment. The transition
out of CFC and now HCFC refrigerants is one reason that it is important
to update the refrigerant management regulations in subpart F.
2. Development of Non-ODS Alternatives
The universe of available refrigerants has expanded dramatically
since EPA first established the refrigerant management regulations in
subpart F. Under the Significant New Alternatives Policy (SNAP) program
(CAA section 612), EPA identifies substitutes that pose lower overall
risks to human health and the environment and must prohibit the use of
substitutes for which there are other available or potentially
available alternatives posing lower overall risk to human health and
the environment for the same use. Thus, EPA's SNAP program does not
provide a static list of alternatives. Instead, the SNAP list evolves
as EPA makes decisions informed by our overall understanding of the
environmental and human health impacts as well as our current knowledge
about available substitutes. Under SNAP, EPA has reviewed over 400
substitutes in the refrigeration and air-conditioning; fire
suppression; foam blowing; solvent cleaning; aerosols; adhesives,
coatings, and inks; sterilants; and tobacco expansion sectors. To date,
SNAP has issued 31 notices and 20 rulemakings listing alternatives as
acceptable, acceptable subject to use conditions, acceptable subject to
narrowed use limits, or unacceptable for those various end-uses.
For example, on April 10, 2015, the SNAP Program listed as
acceptable, subject to use conditions, three hydrocarbons, one
hydrocarbon blend, and HFC-32 as substitute refrigerants in a number of
refrigeration and air-conditioning end-uses (80 FR 19454). The SNAP
program has also recently listed a number of additional refrigerant
options, including blends of hydrofluoroolefins (HFOs) and HFCs that
have lower global warming potentials (GWPs) (October 21, 2014, 79 FR
62863; July 20, 2015, 80 FR 42870). EPA anticipates that industry will
continue to develop safer alternatives and that EPA will continue to
review information concerning additional refrigerant options and
determine the appropriate action needed to safeguard human health and
the environment.
Due to the change in the suite of acceptable refrigerants available
for some end-uses, EPA anticipates that the relative amounts of
different refrigerants in stocks in the United States will change, and
thus that the universe of refrigerants subject to the refrigerant
management program will continue to evolve. The diversity of
refrigerants and the potential for cross-contamination are two reasons
why it is important to clarify how all refrigerants, including non-
exempt substitute refrigerants, should be handled under the refrigerant
management regulations in subpart F.
3. Increased Attention to HFCs as Climate Pollutants
Domestic and international efforts to protect the ozone layer have
also helped to protect the global climate, because in addition to
damaging ozone in the stratosphere, CFCs and HCFCs are also potent
GHGs. HFCs, which are the predominant class of compounds being used as
replacements for ODS, also can
[[Page 82277]]
have high GWPs. As their use has increased, concern has grown over the
environmental damage caused by heat trapped in the atmosphere by HFCs.
On December 7, 2009, (74 FR 66496) the Administrator issued an
Endangerment Finding regarding GHGs under section 202(a) of the CAA. As
part of this finding, EPA concluded that the current and projected
concentrations of six key well-mixed GHGs in the atmosphere--carbon
dioxide (CO2), methane (CH4), nitrous oxide
(N2O), HFCs, PFCs, and sulfur hexafluoride
(SF6)--endanger both the health and welfare of current and
future generations. While this finding was made specifically for the
purposes of section 202(a) of the CAA, EPA is cognizant of the global
climate risks generally discussed in the finding in its work to reduce
emissions of HFCs and other GHGs.
i. Climate Action Plan
In June 2013, the President announced the Climate Action Plan.\4\
Among the many actions called for, the Climate Action Plan outlined a
set of measures to address HFCs. The Climate Action Plan states: ``to
reduce emissions of HFCs, the United States can and will lead both
through international diplomacy as well as domestic actions.'' Part of
this international diplomacy is the proposed Amendment to the Montreal
Protocol discussed below. The Climate Action Plan also directed EPA to
use its authority through the SNAP program ``to encourage private
sector investment in low-emissions technology by identifying and
approving climate-friendly chemicals while prohibiting certain uses of
the most harmful chemical alternatives.'' In July 2015, EPA finalized a
rule that revised the listing status for certain substitutes previously
listed as acceptable under the SNAP program (80 FR 42870). That rule
revised the status of certain HFCs and HCFCs for various end-uses in
the aerosols, refrigeration and air-conditioning, and foam blowing
sectors. EPA made these revisions based on information showing that
other substitutes are available for the same uses that pose lower risk
overall to human health and the environment. A copy of the Climate
Action Plan is available in the docket to this rule.
---------------------------------------------------------------------------
\4\ The President's Climate Action Plan, 2013, https://www.whitehouse.gov/sites/default/files/image/president27sclimateactionplan.pdf.
---------------------------------------------------------------------------
The President's Climate Action Plan also calls on the federal
government to reduce emissions of HFCs by purchasing alternatives
whenever feasible and transitioning to equipment that uses safer and
more sustainable alternatives to HFCs. To implement the Climate Action
Plan, the Department of Defense, General Services Administration, and
National Aeronautics and Space Administration recently amended the
Federal Acquisition Regulation to encourage the purchase of
alternatives to high GWP HFCs (81 FR 30429; May 16, 2016). This rule is
designed to promote the use of safer chemical alternatives to HFCs by
service and vendor contractors. To help agencies monitor progress, the
amendment requires contractors to keep records of and report on the
amounts of HFCs added or removed during the routine maintenance,
repair, or disposal of appliances with a full charge of 50 or more
pounds of HFC or HFC blend refrigerant.
Minimizing the emissions and maximizing the recovery and reuse of
ODS and HFC refrigerants are consistent with the Climate Action Plan.
EPA estimates that the revisions finalized in this action will prevent
annual emissions of refrigerant equivalent to 7.3 MMTCO2eq.
Of this amount, 3.6 MMTCO2eq are due to HFCs and 3.7
MMTCO2eq are due to ODS. Because of the significant
environmental benefit to be gained by addressing HFC refrigerants, it
is important to update the refrigerant management regulations in
subpart F.
ii. Trends in HFC Use and Future Projections
Although HFCs represent a small fraction of current GHG emissions
by weight, their warming impact per kilogram is very strong. The most
commonly used HFC, HFC-134a, has a GWP of 1,430, which means it traps
1,430 times as much heat per kilogram as carbon dioxide does over 100
years. The majority of global, and U.S., HFC use is in the
refrigeration and air conditioning sector. HFC emissions are projected
to increase substantially and at an increasing rate over the next
several decades if their production is left uncontrolled. In the United
States, emissions of HFCs are increasing more quickly than those of any
other group of GHGs, and globally they are increasing 10 to 15 percent
annually. At that rate, emissions are projected to double by 2020 and
triple by 2030.
HFCs are also rapidly accumulating in the atmosphere. The
atmospheric concentration of HFC-134a has increased by about 10 percent
per year from 2006 to 2012, and the concentrations of HFC-143a and HFC-
125, which are components of commonly used refrigerant blends, have
risen over 13 and 16 percent per year from 2007 to 2011, respectively.
Without action, annual global emissions of HFCs are projected to rise
to about 6,400 to 9,900 MMTCO2eq in 2050, which is
comparable to the drop in annual GHG emissions of ODS of 8,000
MMTCO2eq between 1988 and 2010 (UNEP, 2011).
As these HFCs accumulate in the atmosphere, they change the balance
between energy entering the Earth's climate from the sun and energy
escaping the Earth into space. The change in the net rate at which
energy enters the atmosphere is called radiative forcing. By 2050, the
buildup of HFCs in the atmosphere is projected to increase radiative
forcing to 0.22-0.25 W m\2\. To appreciate the significance of the
projected HFC radiative forcing within the context of all GHGs, the
forcing from HFCs would be 6-9% of that from CO2 in the
IPCC's representative concentration pathways (RCP6 and RCP8.5) in 2050
(Velders et al., 2015).
iii. Montreal Protocol Amendment Proposal
For the past six years, the United States, Canada, and Mexico have
proposed an amendment to the Montreal Protocol to phase down the
production and consumption of HFCs. The United States seeks adoption of
an amendment that is acceptable to all Parties. Global benefits of the
amendment proposal would yield significant reductions of over 90
gigatons of carbon dioxide equivalent (CO2eq) through 2050.
A number of other Parties to the Montreal Protocol have also proposed
amendments to phase down global production and consumption of HFCs.
These proposals were introduced by a group of Island States; the
European Union; and India. On November 6, 2015, the Parties to the
Montreal Protocol adopted the ``Dubai Pathway'' on HFCs, which provides
that the Parties would work together, within the Montreal Protocol, to
adopt an HFC amendment in 2016.
4. Petition From the Alliance for Responsible Atmospheric Policy
On January 31, 2014, the Alliance for Responsible Atmospheric
Policy (the Alliance) petitioned the Agency to initiate a rulemaking to
apply the section 608 refrigerant management regulations to HFCs and
other substitute refrigerants. In that petition, the Alliance requested
that EPA extend the section 608 regulations relating to refrigerant
sales and distribution restrictions, and the evacuation, certification,
reclamation and recovery, leak repair, reporting and recordkeeping
[[Page 82278]]
requirements to HFCs. The petition argues that applying the section 608
requirements to HFCs ``would increase the environmental benefits
already realized from the section 608 regulations, through reduced HFC
emissions, and would complement the United States' goal of a global
phase down in HFC production and consumption.'' The petition cites
sections 608(c)(2) and 301(a) of the CAA as authority for these
revisions. A copy of the petition is included in the docket for this
rulemaking. While EPA is not taking today's action solely as a result
of the Alliance petition, this rulemaking constitutes the Agency's
response to the petition.
D. What are the goals of this rule?
The Agency has two goals for this rulemaking. The first is to
promote the proper handling and use of ozone-depleting and substitute
refrigerants. Doing so will protect the stratospheric ozone layer by
reducing emissions of ODS refrigerants and protect the climate system
by reducing emissions of refrigerant gases with high GWPs. High-GWP
refrigerants include both ODS refrigerants and most substitute
refrigerants, including HFCs, that EPA has not exempted from the
venting prohibition under CAA section 608. The second goal of this
rulemaking is to harmonize the requirements across all major
refrigerant types and update the regulations in plain language to
reduce uncertainty and complexity for the regulated community, as well
as increase clarity, encourage compliance, and facilitate enforcement.
1. Promoting the Proper Handling of Refrigerants
Today's rule will reduce the use and emission of refrigerants,
maximize the recapture and recycling of such substances, and further
interpret, explain, and enforce the prohibition on knowingly venting or
releasing refrigerants during the maintenance, service, repair, or
disposal of appliances.
EPA estimates that this rule will result in annual reductions in
emissions of approximately 114 ODP-weighted metric tons. A separate
support document Analysis of the Economic Impact and Benefits of Final
Revisions to the National Recycling and Emission Reduction Program
contains a full discussion of the benefits of this rule and is
available in the docket.
Stratospheric ozone depletion decreases the atmosphere's ability to
shield life on the Earth's surface from the sun's UV radiation. The
links between stratospheric ozone depletion and public health concerns
are well established. Emissions of ODS lead to chemical reactions that
reduce the amount of ozone in the stratosphere. Less ozone in the
stratosphere means that more UVA and UVB radiation reaches the earth's
surface and is incident on exposed organisms, including humans. Adverse
health effects associated with exposure to UV radiation include skin
cancer, cataracts, and immune suppression. The Scientific Assessment of
Ozone Depletion,\5\ prepared by the Scientific Assessment Panel to the
Montreal Protocol, and Environmental Effects of Ozone Depletion and its
Interactions with Climate Change,\6\ prepared by the Environmental
Effects Assessment Panel to the Montreal Protocol provide comprehensive
information regarding the links between emissions of ODS, ozone layer
depletion, UV radiation, and human health effects. Both documents are
available in the docket for this rule.
---------------------------------------------------------------------------
\5\ World Meteorological Organization (WMO), Scientific
Assessment of Ozone Depletion: 2014, World Meteorological
Organization, Global Ozone Research and Monitoring Project--Report
No. 55, 416 pp., Geneva, Switzerland, 2014.
\6\ United Nations Environment Programme, Environmental Effects
Assessment Panel, Environmental effects of ozone depletion and its
interactions with climate change: progress report, 2011, Photochem.
Photobiol. Sci., 2012, 11, DOI: 10.1039/c1pp90033a.
---------------------------------------------------------------------------
The most common forms of skin cancer are strongly associated with
UV radiation, and UV exposure is the most preventable cause of skin
cancer (U.S. Department of Health and Human Services. The Surgeon
General's Call to Action to Prevent Skin Cancer. Washington, DC: U.S.
Department of Health and Human Services, Office of the Surgeon General;
2014). Skin cancer is the most common form of cancer in the United
States, with more than 3.5 million new cases diagnosed annually
(American Cancer Society, Cancer Facts and Figures, 2015). Rates for
new cases of melanoma, the most serious form of skin cancer, have been
rising on average 1.4 percent each year over the last 10 years
(National Cancer Institute, SEER Stat Fact Sheets: Melanoma of the
Skin, available at https://seer.cancer.gov/statfacts/html/melan.html,
accessed May 5, 2015). In 2015, it is estimated that 70,000 Americans
will have been diagnosed with melanoma and almost 10,000 will have died
as a result of the disease (American Cancer Society, Cancers Facts and
Figures, 2015).
Non-melanoma skin cancers are less deadly than melanomas, but if
left untreated they can spread, causing disfigurement and more serious
health problems. There are two primary types of non-melanoma skin
cancers. Basal cell carcinomas are the most common type of skin cancer
tumors. Basal cell carcinoma grows slowly, and rarely spreads to other
parts of the body. It can, however, penetrate to the bone and cause
considerable damage. Squamous cell carcinomas are tumors that may
appear as nodules or as red, scaly patches. This cancer can develop
into large masses and can spread to other parts of the body.
Other UV-related skin disorders include actinic keratoses and
premature aging of the skin. Actinic keratoses are skin growths that
occur on body areas exposed to the sun. The face, hands, forearms, and
neck are especially susceptible to this type of lesion. Although
premalignant, actinic keratoses are a risk factor for squamous cell
carcinoma. Chronic exposure to the sun also causes premature aging,
which over time can make the skin become thick, wrinkled, and leathery.
Research has shown that UV radiation increases the likelihood of
certain cataracts. (Taylor, H.R., et al., 1988. Effect of ultraviolet
radiation on cataract formation, New England Journal of Medicine, 319,
1429-33; West, S. et al., 2005. Model of Risk of Cortical Cataract in
the US Population with Exposure to Increased Ultraviolet Radiation due
to Stratospheric Ozone Depletion, American Journal of Epidemiology,
162, 1080-1088.) Cataracts are a form of eye damage in which a loss of
transparency in the lens of the eye clouds vision. If left untreated,
cataracts can lead to blindness. Although curable with modern eye
surgery, cataracts diminish the eyesight of millions of Americans.
Other kinds of eye damage caused by UV radiation include pterygium
(i.e., tissue growth that can block vision), skin cancer around the
eyes, and degeneration of the macula which contains the part of the
retina where visual perception is most acute.
Another benefit of reducing refrigerant emissions is protection of
the climate system. Many refrigerants, including ODS and substitutes
for ODS, are potent GHGs, having GWPs thousands of times higher than
that of carbon dioxide (CO2), which has a GWP of one. For
example, HCFC-22 has a GWP of 1,810. R-404A, a commonly used HFC
refrigerant blend, has a GWP of 3,922. Other common HFC refrigerants,
with their GWPs, include R-134a (1,430), R-410A (2,088), R-407A
(2,107), and R-507A (3,985). EPA estimates that today's rule will
reduce GWP-weighted emissions by approximately 7.3 MMTCO2eq
per year.
[[Page 82279]]
To briefly summarize, GHGs cause climate change by trapping heat on
Earth. The Earth is constantly receiving energy from the sun in the
form of radiation, while at the same time, energy is radiating away
into space, mostly as infrared radiation. By absorbing and scattering
radiation that otherwise would escape into space, GHGs throw off the
balance between incoming and escaping radiation, resulting in more
energy in the Earth's climate system.
As described in the EPA's 2009 Endangerment Finding (74 FR 66496)
and subsequent reports by the IPCC, the United States Global Change
Research Program, and the National Research Council, climate change
impacts threaten the health of Americans in multiple ways and touch on
nearly every aspect of public welfare. For more information on GHGs and
climate change in the United States, visit www.epa.gov/climatechange.
2. Improving Rule Effectiveness
The second goal of today's rule is to improve the clarity and
effectiveness of the subpart F regulations. Achieving the health and
environmental benefits of these rules depends on widespread compliance,
and understanding of the regulations by the regulated community
enhances compliance.
EPA has begun an initiative to improve the effectiveness of its
rules called Next Generation Compliance. The vision for this initiative
is to make it easier for the regulated community to understand and
comply with environmental laws and inform the public about their
performance. Most importantly, this initiative will help ensure that
all Americans are protected from significant risks to human health and
the environment and have access to information that allows them to more
fully engage in environmental protection efforts.
The Agency has identified several interconnected components in the
Office of Enforcement and Compliance Assurance's 2014-2017 strategic
plan for its Next Generation Compliance initiative that can improve the
effectiveness of rules:
Effective Regulations: Design regulations that are clear,
as easy to implement as possible, and that contain self-reinforcing
drivers. For example, where possible, design regulations such that
regulated facilities can take steps to monitor their own performance to
prevent violations, or be certified by an independent 3rd party.
Advanced Monitoring: Use advanced monitoring technology
for the government, industry, and the public to more easily find
information on pollutant discharges/emissions, environmental
conditions, and noncompliance.
Electronic Reporting: Implement electronic systems to make
reporting easier, more efficient, and less costly. For the user, these
systems offer speed, convenience, expanded information choices, and
filing capabilities. For government, they offer the ability to increase
transparency, improve our ability to spot pollution and compliance
issues, and respond quickly to emerging problems.
Transparency: Make the information we have today more
accessible, and make new information obtained from advanced monitoring
and electronic reporting publicly available.
Innovative Enforcement: Use Next Generation Compliance
principles and tools in enforcement planning and cases.
Effective Regulations. The Agency and industry have more than 20
years of experience implementing and operating under the refrigerant
management regulations in subpart F. Through that experience, it has
become clear that there are elements of the program that could be made
more effective. This rule revises the structure of these regulations to
clearly lay out the process for repairing refrigerant leaks and adds
steps to ensure that the repairs were successful. This rule also for
the first time addresses chronically leaking systems in a manner that
minimizes the burden on compliant systems. EPA has reorganized the
subpart so affected entities can more easily find the provisions that
apply to them, including recordkeeping and reporting. This rule removes
outdated requirements and, where appropriate, removes unnecessary
distinctions between refrigerants, appliance types, and recovery
equipment types. Clearer regulations will also be supported by
comprehensive compliance assistance materials for each industry segment
affected by this final regulation. EPA hopes to make it easier for the
regulated community to understand their obligations when handling
refrigerants, thereby improving compliance and reducing damage to the
environment.
Advanced Monitoring. EPA is encouraging owners/operators of
appliances containing 50 or more pounds of refrigerant to install
automatic leak detection equipment. Such systems provide continuous
information about whether a system is leaking, allowing leaks to be
caught sooner. This can reduce both refrigerant costs and labor costs
of manually inspecting refrigeration systems.
Electronic Reporting. EPA has established the email address
608reports@epa.gov and this rule requires that all reports that do not
contain confidential business information be submitted to EPA at that
address. EPA is also revising the regulations to explicitly state that
owners and operators of appliances subject to the leak repair
provisions may use electronic systems to track when and how much
refrigerant is added to equipment and to keep other required records.
Transparency. EPA is requiring members of the regulated community
to post additional information online that is of use to this sector.
For example, equipment testing organizations must post lists of
certified recovery and/or recycling equipment on their Web sites rather
than submit paper reports to EPA. Certifying organizations must also
publish lists of technicians that they certify online to assist
technicians who have lost their certification cards. EPA also posts to
its Web site data on the amount of ODS refrigerant reclaimed each year.
Under this final rule EPA will begin collecting and making available
reclamation data for non-exempt substitute refrigerants which should
provide EPA and the general public a greater understanding of the
extent of HFC recovery and reclamation.
Innovative Enforcement. EPA has incorporated innovative enforcement
principles into subpart F since its inception, and this rule updates
and strengthens those principles. For example, the refrigerant sales
restriction is an effective way to ensure that anyone maintaining,
servicing, or repairing an appliance is a certified technician. EPA has
also required certification of refrigerant recovery equipment by
independent third parties (i.e., UL and Air Conditioning, Heating, and
Refrigeration Institute (AHRI)) to ensure that recovery equipment meets
the applicable standards. This ensures that technicians who use these
devices to recover refrigerant are also using equipment that, when
following the manufacturer's instructions, will meet the minimum
refrigerant evacuation requirements. EPA also relies on third parties
to administer the technician certification exam.
E. What are the major revisions being finalized in this rule?
EPA is finalizing most of the proposed revisions to the regulations
for the National Recycling and Emission Reduction Program. Some of
these revisions strengthen the existing program, in particular by
requiring owners and operators to repair systems
[[Page 82280]]
that leak at lower rates than what is currently required and to verify
that those repairs were successful. Others extend, as appropriate, the
regulations to HFCs and other non-exempt substitute refrigerants. Still
other revisions improve the effectiveness of the regulations. After
considering comments, EPA has decided not to finalize certain aspects
of the proposal. This section briefly discusses the major proposed
revisions and the final actions that EPA is taking. Detailed
discussions of all of the revisions to the regulations finalized in
this action, changes from the proposal, and responses to significant
comments are in Section IV of this notice. EPA also summarizes and
responds to all significant comments on the proposed action in the
comment response document in the docket.
1. Extend the Regulations To Cover Substitute Refrigerants
EPA is finalizing the proposed extension of the requirements of the
National Recycling and Emission Reduction Program to substitute
refrigerants that have not been exempted from the venting prohibition
(also referred to in this action as ``non-exempt substitutes'').
2. Strengthen Leak Repair Requirements
Prior to this rule, the leak rates for ODS equipment were 35
percent for IPR and commercial refrigeration appliances, and 15 percent
for comfort cooling and other appliances. EPA proposed leak rates of 20
percent for IPR and commercial refrigeration and 10 percent for comfort
cooling and other appliances. Based in part on comments received on the
proposal, EPA is finalizing leak rates for ODS equipment as follows: 30
percent for IPR, 20 percent for commercial refrigeration appliances,
and 10 percent for comfort cooling and other appliances. EPA is also
extending the new leak rates to equipment using HFCs and other
substitute refrigerants that are not exempt from the venting
prohibition.
After considering public comments, EPA is modifying the proposed
leak inspection requirements in this final rule. EPA proposed to
require quarterly or annual leak inspections for all appliances with a
full charge of 50 pounds or greater, with the more frequent inspections
applying to larger systems. In the revisions finalized in this rule,
EPA is requiring quarterly or annual leak inspections only for
appliances that have exceeded the applicable leak rate. Similar to the
proposal, owners or operators can forgo leak inspections if they
install, continuously operate, and maintain automatic leak detection
systems.
Based on comments, EPA has given particular attention to situations
where the proposed regulations would have required the retrofit or
retirement of an appliance. EPA has modified the final rule in numerous
places to support the proper repair of leaking systems. Most notably,
EPA is modifying the proposed chronic leaker provision. EPA proposed
that appliances containing 50 or more pounds of ODS or substitute
refrigerant that leak more than 75 percent of the appliance's full
charge in each of two consecutive 12-month periods would have to be
retired or mothballed. EPA is finalizing a requirement that owners or
operators of appliances that leak 125 percent of their full charge in a
calendar year must submit a report to EPA detailing their repair
efforts. The report must be submitted no later than March 1 following
the calendar year of the >=125 percent leak.
3. Extend the Sales Restriction to Substitute Refrigerants, With an
Exception for Small Cans of MVAC Refrigerant
EPA is finalizing the proposed restriction that non-exempt
substitute refrigerants may only be sold to technicians certified under
sections 608 or 609 of the CAA. In the case of MVAC refrigerant, EPA is
exempting the sale of small cans of non-ODS substitutes to allow the
do-it-yourself (DIY) community to continue servicing their personal
vehicles. EPA is requiring that small cans of non-exempt substitute
refrigerant be outfitted with self-sealing valves by January 1, 2018.
Based on comments, EPA is not finalizing the proposal to prohibit the
sale of small cans that do not contain self-sealing valves that were
manufactured or imported prior to that requirement taking effect.
4. Establish Recordkeeping for Appliances Containing More Than 5 and
Less Than 50 Pounds of ODS and Non-Exempt Substitute Refrigerant
EPA is finalizing revisions to the regulations that require that
technicians, or the company employing technicians, keep records when
disposing of appliances containing more than five and less than 50
pounds of refrigerant. These records include the company name, location
of the appliance, date of recovery, and type of refrigerant recovered
for each appliance. EPA is also finalizing, with some modification, the
revision to the regulations requiring that technicians keep records of
the amounts of ODS and non-exempt substitute refrigerant transferred
for reclamation by refrigerant type.
EPA is reducing the burden in this final rule by only requiring
maintaining records typically generated in the field during the normal
disposal of appliances. Therefore, EPA is not finalizing the proposed
requirement to keep records indicating the amount of refrigerant
recovered from each appliance. Instead, EPA is finalizing a requirement
to record the total amount of refrigerant, by type, recovered from all
appliances they disposed of over a calendar month. This tally can be
performed less frequently and at a central location.
5. Update the Technician Certification Program
EPA is finalizing the requirement that technicians be certified to
handle HFCs and other non-exempt substitutes, as proposed. EPA is also
finalizing the proposed requirement for certifying organizations to
publish lists or create online databases of technicians that they
certify.
6. Improving Readability and Restructuring the Requirements
EPA is finalizing the extensive revisions to the regulations in
subpart F to more clearly state the requirements of the National
Recycling and Emission Reduction Program and to remove potentially
ambiguous language, with minor changes from the proposal. EPA is
modifying some of the proposed revisions to address additional
suggestions raised by commenters. EPA's intent with these edits is to
improve readability, not to change the substantive content or
requirements of the regulations. For edits to the regulations that are
intended to be substantive, EPA is discussing those revisions in this
notice. EPA is adding to the docket a red-line version of the final
regulatory text from subpart F that shows the final revisions to the
prior regulations to assist the regulated community in identifying the
differences.
F. Enforcement of Subpart F Regulations
Subpart F regulations must be enforced to realize their full
environmental and human health benefit. This section briefly presents
examples of recent actions that EPA has taken to enforce the venting
prohibition, leak repair, and safe disposal provisions of subpart F.
Several provisions that EPA is finalizing in this rule are based on
lessons learned in taking these enforcement actions. These revisions
are intended to encourage compliance and facilitate potential future
enforcement of
[[Page 82281]]
the requirements actions of these and other sections of the subpart F
regulations. EPA's Web site contains more information on these
enforcement actions.\7\
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\7\ https://www.epa.gov/ozone-layer-protection/enforcement-actions-under-title-vi-clean-air-act.
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Some commenters stated that EPA should seek better ways to enforce
the pre-existing regulations for Class I and II ODS. One commenter
encouraged EPA to continue to identify cost-effective means of ensuring
that the entire regulated community supports and follows lawful
policies and regulations. Another commenter wrote that venting of HFCs
above de minimis levels must be severely penalized for the rule to be
as effective as possible. That commenter encouraged EPA to reiterate
that EPA welcomes information and reporting on an anonymous basis
regarding parties known to be venting ODS, HFCs, and any non-exempt
substitute.
EPA responds that the Agency has enforced and continues to enforce
these regulations in actions that range from civil fines to criminal
prosecutions. EPA encourages anyone who suspects or witnesses unlawful
releases of refrigerants or other violations of CAA regulations to
report an environmental violation to EPA (www.epa.gov/enforcement/report-environmental-violations). In 2014 and 2015, EPA brought or
assisted in three cases against individuals for violating the venting
prohibition when cutting into the refrigerant lines to steal metal from
HCFC-22 containing air conditioners. Under the plea agreement in a case
from 2014, the individual cutting the refrigerant line must serve 31
months in federal prison and then remain under court supervision for an
additional 12 months during which time he must perform 200 hours of
community service.
EPA entered into consent decrees with the supermarket chains
Safeway in 2013, Costco in 2015, and Trader Joe's in 2016 for
violations of the leak repair provisions of subpart F for their
commercial refrigeration units. In 2015, EPA obtained corrective action
with the United States Navy to resolve allegations of failing to
perform leak rate calculations when servicing comfort cooling
equipment, and with DuPont for improper maintenance and repair of two
large IPR units. In 2012, EPA executed consent decrees with Icicle
Seafoods, American Seafoods Co. LLC, and Pacific Longline Co. LLC for
failure to repair refrigerant leaks at chilling units aboard its
fishing vessels and failure to verify the adequacy of repairs before
resuming operations, among other violations. In March of 2016, Ocean
Gold Seafoods, Inc. and Ocean Cold, LLC entered into a consent decree
with EPA that resolved alleged violations for failing to promptly
repair refrigerant leaks and failing to keep adequate records of the
servicing of their IPR equipment necessary to prevent leaks.
EPA has executed consent decrees to resolve alleged violations of
the safe disposal regulations in subpart F. These include decrees in
2016 with Parkway Iron and Metal, and in 2015 with Metal Dynamics and
Basic Recycling, as well as at least forty-five non-judicial
settlements against scrap recyclers in 2014 and 2015.
EPA also continues to take steps to maintain the integrity of the
certification programs under subpart F. EPA recently revoked over a
dozen technician certification programs that had failed to submit the
required biannual activity report (81 FR 28864). EPA is also ensuring
that certified refrigerant reclaimers continue to operate in accordance
with Sec. 82.164 and maintain records and submit reports in accordance
with Sec. 82.166. EPA recently published a notice announcing the
previous revocation of the certification of eight refrigerant
reclaimers and giving a ninth reclaimer notice of impending revocation
(80 FR 75455).
G. Incorporation by Reference
This action involves technical standards. In some instances, EPA is
deciding to use a modified version of an industry standard for purposes
of this rule; in others, EPA is deciding to use an industry standard by
incorporating it by reference exactly as written. This section
summarizes the technical standards that EPA is incorporating by
reference and describes how interested parties can access those
standards. Sections IV.C (small cans of MVAC refrigerant), Section IV.G
(recovery and/or recycling equipment), and IV.K (reclamation
requirements) contain further discussion of these technical standards
including comments received on EPA's proposal to incorporate certain
standards by reference.
EPA is incorporating by reference UL 1963, Requirements for
Refrigerant Recovery/Recycling Equipment, Fourth Edition, June 1, 2011
in appendix B4. This establishes standards for refrigerant recovery and
refrigerant recovery/recycling equipment to ensure the equipment can be
used safely with flammable refrigerants. The standard is available at
www.comm-2000.com or by writing to Comm 2000, 151 Eastern Avenue,
Bensenville, IL 60106. The cost is $798 for an electronic copy and $998
for hardcopy. UL also offers a subscription service to the Standards
Certification Customer Library (SCCL) that allows unlimited access to
their standards and related documents. The cost of obtaining this
standard is not a significant financial burden for equipment
manufacturers. Therefore, EPA concludes that the UL standard being
incorporated by reference is reasonably available.
EPA is not incorporating by reference AHRI Standard 700-2016,
Specifications for Refrigerants. Rather EPA is basing the content found
in appendix A on this standard. This standard establishes purity
specifications for refrigerants, and specifies the associated methods
of testing for acceptability of refrigerants. The standard is available
at www.ahrinet.org or by mail at Air-Conditioning, Heating, and
Refrigeration Institute (AHRI), 2111 Wilson Boulevard, Suite 500,
Arlington, VA 22201. EPA is incorporating by reference publically
available versions of the standards referenced in AHRI Standard 700-
2016. Specifically, these standards are:
--2008 Appendix C for Analytical Procedures for AHRI Standard 700-
2014--Normative. This document establishes definitive test
procedures for determining the quality of new, reclaimed and/or
repackaged refrigerants in support of the standards established in
AHRI-700. An electronic copy of the appendix is available at
www.ahrinet.org. It is also available by mail at Air-Conditioning,
Heating, and Refrigeration Institute (AHRI), 2111 Wilson Boulevard,
Suite 500, Arlington, VA 22201. The cost of obtaining this standard
is not a significant financial burden. Therefore, EPA concludes that
the standard being incorporated by reference is reasonably
available.
--2012 Appendix D for Gas Chromatograms for AHRI Standard 700-2014--
Informative Air-Conditioning, Heating, and Refrigeration Institute.
This appendix provides figures for the gas chromatograms used with
Appendix C to AHRI Standard 700-2015: Normative. An electronic copy
of the appendix is available at www.ahrinet.org. It is also
available by mail at Air-Conditioning, Heating, and Refrigeration
Institute (AHRI), 2111 Wilson Boulevard, Suite 500, Arlington, VA
22201. The cost of obtaining this standard is not a significant
financial burden. Therefore, EPA concludes that the standard being
incorporated by reference is reasonably available.
--Federal Specification for ``Fluorocarbon Refrigerants,'' BB-F-1421
B, dated March 5, 1982. This section of this standard establishes a
method to determine the boiling point and boiling point range of a
refrigerant. The standard is available in the docket for this
rulemaking. Therefore, EPA concludes that the standard being
[[Page 82282]]
incorporated by reference is reasonably available.
--GPA STD-2177, Analysis of Natural Gas Liquid Mixtures Containing
Nitrogen and Carbon Dioxide by Gas Chromatography, 2013, Gas
Processors Association. This standard establishes methods for
analyzing demethanized liquid hydrocarbon streams containing
nitrogen/air and carbon dioxide, and purity products such as ethane/
propane mix that fall within compositional ranges indicated in the
standard. The standard is available at www.techstreet.com or by
writing to Techstreet, 6300 Interfirst Drive, Ann Arbor, MI 48108.
The cost of this standard is $55 for an electronic copy or $65 for a
printed edition. The cost of obtaining this standard is not a
significant financial burden. Therefore, EPA concludes that the
standard being incorporated by reference is reasonably available.
_ASTM Standard D1296-01-2012, Standard Test Method for Odor of
Volatile Solvents and Diluents, July 1, 2012, ASTM International.
This test method covers a comparative procedure for observing the
characteristic and residual odors of volatile organic solvents and
diluents to determine their odor acceptability in a solvent system.
The standard is available at www.astm.org or by writing to ASTM, 100
Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.
The cost of this standard is $39. The cost of obtaining this
standard is not a significant financial burden. Therefore, EPA
concludes that the standard being incorporated by reference is
reasonably available.
EPA is not incorporating by reference AHRI Standard 740-2016,
Performance Rating of Refrigerant Recovery Equipment and Recovery/
Recycling Equipment. Rather EPA is basing the content found in
appendices B3 and B4 on this standard. This standard establishes
methods of testing for rating and evaluating the performance of
refrigerant recovery equipment and recovery/recycling equipment. The
standard is available at www.ahrinet.org or by mail at Air-
Conditioning, Heating, and Refrigeration Institute (AHRI), 2111 Wilson
Blvd., Suite 500, Arlington, VA 22201. EPA is incorporating by
reference the standards referenced in AHRI Standard 740-2016.
Specifically, these standards are:
--ANSI/ASHRAE Standard 63.2-1996 (RA 2010) Method of Testing Liquid-
Line Filter Drier Filtration Capability, 2010, American National
Standards Institute/American Society of Heating, Refrigerating and
Air-Conditioning Engineers, Inc. The purpose of this standard is to
prescribe a laboratory test method for evaluating the filtration
capability of filters and filter driers used in liquid lines of
refrigeration systems. The standard is available at www.ashrae.org
or by mail at AHSRAE, 1791 Tullie Circle NE., Atlanta, GA 30329. The
cost is $39 for an electronic copy or printed edition. The cost of
obtaining this standard is not a significant financial burden.
Therefore, EPA concludes that the standard being incorporated by
reference is reasonably available.
_UL Standard 1963-2011, Refrigerant Recovery/Recycling Equipment,
Fourth Edition, 2011, American National Standards Institute/
Underwriters Laboratories, Inc. This standard establishes safety
requirements for and methods to evaluate refrigerant recovery and
refrigerant recovery/recycling equipment. The standard is available
at www.comm-2000.com or by writing to Comm 2000, 151 Eastern Avenue,
Bensenville, IL 60106. The cost is $798 for an electronic copy and
$998 for hardcopy. UL also offers a subscription service to the
Standards Certification Customer Library (SCCL) that allows
unlimited access to their standards and related documents. The cost
of obtaining this standard is not a significant financial burden for
equipment manufacturers. Therefore, EPA concludes that the UL
standard being incorporated by reference is reasonably available.
--AHRI Standard 110-2016, Air-Conditioning, Heating and
Refrigerating Equipment Nameplate Voltages, 2016, Air-Conditioning,
Heating, and Refrigeration Institute. This standard establishes
voltage rating requirements, equipment performance requirements, and
conformance conditions for air-conditioning, heating, and
refrigerating equipment. A free electronic copy of this standard is
available at www.ahrinet.org. It is also available by mail at Air-
Conditioning, Heating, and Refrigeration Institute (AHRI), 2111
Wilson Boulevard, Suite 500, Arlington, VA 22201. The cost of
obtaining this standard is not a significant financial burden.
Therefore, EPA concludes that the standard being incorporated by
reference is reasonably available.
--International Standard IEC 60038, IEC Standard Voltages, Edition
7.0, 2009-06, International Electrotechnical Commission. This
standard specifies standard voltage values which are intended to
serve as preferential values for the nominal voltage of electrical
supply systems, and as reference values for equipment and system
design. The standard is available at www.techstreet.com or by
writing to Techstreet, 6300 Interfirst Drive, Ann Arbor, MI 48108.
The cost of this standard is $50. The cost of obtaining this
standard is not a significant financial burden. Therefore, EPA
concludes that the standard being incorporated by reference is
reasonably available.
EPA is not incorporating by reference California Air Resources
Board, Test Procedure for Leaks from Small Containers of Automotive
Refrigerant, TP-503, as amended January 5, 2010. Rather EPA is basing
the content found in appendix E on this standard. This standard
establishes methods for assessing the leak rate from small containers
of refrigerant. A copy of this standard is available in the docket and
www.arb.ca.gov/regact/2009/hfc09/hfc09.htm.
III. EPA's Authority Under the Clean Air Act
A. Summary of EPA's Authority for the Revisions to Subpart F
The authority for this action is provided primarily by section 608
of the CAA. Section 608 is divided into three subsections, which
together comprise the ``National Recycling and Emission Reduction
Program.'' Among other things, section 608 of the CAA requires EPA to
establish a comprehensive program to limit emissions of ozone-depleting
refrigerants. It also prohibits the knowing release or disposal of
ozone-depleting refrigerants and their substitutes in the course of
maintaining, servicing, repairing, or disposing of air-conditioning and
refrigeration equipment in a manner which permits such a substance to
enter the environment. The three subsections of section 608 are
described in more detail in the following paragraphs.
Section 608(a) requires EPA to establish standards and requirements
regarding use and disposal of class I and II substances. With regard to
refrigerants, EPA is to promulgate regulations establishing standards
and requirements for the use and disposal of class I and class II
substances during the maintenance, service, repair, or disposal of air-
conditioning and refrigeration appliances or IPR. Regulations under
section 608(a) are to include requirements to reduce the use and
emission of ODS to the lowest achievable level, and to maximize the
recapture and recycling of such substances. Section 608(a) further
provides that ``such regulations may include requirements to use
alternative substances (including substances which are not class I or
class II substances) or to minimize use of class I or class II
substances, or to promote the use of safe alternatives pursuant to
section [612] or any combination of the foregoing.''
Section 608(b) requires that the regulations issued pursuant to
section 608(a) contain requirements for the safe disposal of class I
and class II substances, including requirements that such substances
shall be removed from such appliances, machines, or other goods prior
to the disposal of such items or their delivery for recycling.
Section 608(c) establishes a self-effectuating prohibition,
commonly called the ``venting prohibition,'' that generally speaking,
makes it unlawful to knowingly release ODS and substitute refrigerants
in a way that allows the refrigerant to enter the environment
[[Page 82283]]
while maintaining, servicing, repairing, or disposing of air-
conditioning or refrigeration equipment. More specifically, section
608(c)(1), effective July 1, 1992, makes it unlawful for any person in
the course of maintaining, servicing, repairing, or disposing of an
appliance or IPR to knowingly vent, release, or dispose of any ODS used
as a refrigerant in such equipment in a manner that permits that
substance to enter the environment. The statute exempts from this
prohibition ``[d]e minimis releases associated with good faith attempts
to recapture and recycle or safely dispose'' of such a substance.
Section 608(c)(2) extends the provisions of (c)(1), including the
prohibition on venting, to substitutes for class I or class II
refrigerants, effective November 15, 1995, unless the Administrator
determines that such venting, release, or disposal ``does not pose a
threat to the environment.'' EPA has determined through prior
rulemakings that specific substances do not pose a threat to the
environment when vented, released, or disposed of and has exempted
those specific substitutes from the venting prohibition. The full list
of substitutes that EPA has exempted from this prohibition is at 40 CFR
82.154(a). For some substitutes that have been exempted from the
venting prohibition under section 608(c)(2) and Sec. 82.154(a) the
exemption only applies when the substitute is used in specified
applications, but for others, the exemption is for the substitute
refrigerant as used in all applications.\8\
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\8\ EPA is using the term ``non-exempt substitute'' in this
notice to refer to substitute refrigerants that have not been
exempted from the venting prohibition under CAA section 608(c)(2)
and 40 CFR 82.154(a) in the relevant end-use. Similarly, the term
``exempt substitute'' refers to a substitute refrigerant that has
been exempted from the venting prohibition under section 608(c)(2)
and Sec. 82.154(a) in the relevant end-use.
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The statutory standards under section 608(a) against which the
regulations concerning the use and disposal of ozone-depleting
substances are to be measured are whether they ``reduce the use and
emission of such substances to the lowest achievable level'' and
``maximize the recapture and recycling of such substances.'' These
standards are often complementary in the context of maintenance,
service, repair, and disposal of air conditioning and refrigerant
equipment. For example, in the context of recycling, maximizing
recycling will also help reduce the use and emission of these
substances to the lowest achievable level. These statutory standards
also bear a relationship to the de minimis releases addressed in
section 608(c). More specifically, emissions that occur while complying
with EPA's recovery and recycling regulations are considered de
minimis, because those regulations set forth practices and requirements
which result in the lowest achievable level of emissions. EPA has
established this interpretation in its regulations under section 608
for ODS refrigerants.
On May 14, 1993, EPA published the original regulations
implementing subsections (a), (b), and (c)(1) for ODS refrigerants (58
FR 28660). These regulations include evacuation requirements for
appliances being serviced or disposed of, standards and testing
requirements for recovery and/or recycling equipment, certification
requirements for technicians, purity standards and testing requirements
for used refrigerant sold to a new owner, certification requirements
for refrigerant reclaimers, leak repair requirements, and requirements
for the safe disposal of appliances that enter the waste stream with
the charge intact. This rule also stated that the Agency interprets
``de minimis'' to mean releases that occur while the recycling and
recovery requirements of regulations under sections 608 and 609 are
followed. However, those requirements only applied to ODS refrigerants,
and these regulations did not explain how the venting prohibition or
the de minimis exemption applied for substitute refrigerants. Among
other things, this rulemaking addresses that gap in the regulations.
1. Applying Regulations Under Section 608 to Substitute Refrigerants
In this rule, EPA is extending, as appropriate, provisions of the
refrigerant recovery and/or recycling regulations, which previously had
only applied to ODS refrigerants, to non-exempt substitute
refrigerants. To summarize briefly, EPA's authority for this action
rests largely on section 608(c), which EPA interprets to provide it
authority to promulgate regulations that interpret, explain, and
enforce the venting prohibition and the de minimis exemption, as they
apply to both ODS refrigerants and non-exempt substitute refrigerants.
Accordingly, this rule establishes a comprehensive and consistent
framework that applies to both ODS and non-exempt substitute
refrigerants. This, in turn, provides clarity to the regulated
community concerning the measures that should be taken to comply with
the venting prohibition for non-exempt substitutes and reduces
confusion and enhances compliance for both ODS and non-exempt
substitutes.\9\ EPA's authority to issue regulations for section 608(c)
is supplemented by section 301(a), which provides authority for EPA to
``prescribe such regulations as are necessary to carry out [the EPA
Administrator's] functions under this Act.'' In addition, EPA's
authority to extend the recordkeeping and reporting requirements to
non-exempt substitutes is supplemented by section 114, which provides
authority to the EPA Administrator to require recordkeeping and
reporting in carrying out provisions of the CAA. Finally, the extension
of requirements under section 608 to non-exempt substitutes in this
rule is also supported by section 608(a) because having a consistent
regulatory framework for non-exempt substitutes and ODS is expected to
reduce emissions of ODS refrigerants, as well as non-exempt
substitutes.
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\9\ EPA used an analogous analysis in promulgating the
regulations for section 608 originally. In that rulemaking, EPA
explained that extending regulatory requirements to class II
substances (rather than only regulating class I substances) would
facilitate compliance with the venting prohibition, in part by
providing clear guidance to technicians recovering class II
substances on what releases do and do not constitute violations of
the prohibition. 58 FR 28667. EPA also explained that it was
desirable to provide a ``clear, consistent framework for fully
implementing the prohibition on venting for all refrigerants'' to
``minimize confusion and maximize compliance with the prohibition.''
58 FR 28666.
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Section 608 of the CAA is ambiguous with regard to EPA's authority
to establish refrigerant management regulations for substitute
refrigerants. As Congress has not precisely spoken to this issue, EPA
has the discretion to adopt a permissible interpretation of the CAA.
Chevron, U.S.A., Inc. v. Natural Res. Def. Council, Inc., 467 U.S. 837,
843-44 (1984). Primarily under the authority of section 608(a), EPA has
established standards for the proper handling of ODS refrigerants
during the maintenance, service, repair, or disposal of an appliance to
maximize the recovery and/or recycling of such substances and reduce
the use and emission of such substances. Section 608(a) expressly
requires EPA to promulgate regulations that apply to class I and class
II substances, but is silent on whether its requirements apply to
substitute substances. On the other hand, section 608(c)(2) contains
provisions for substitute refrigerants which parallel those for ODS
refrigerants in section 608(c)(1). For instance, as for ODS
refrigerants under section 608(c)(1), section 608(c)(2) prohibits
knowingly venting, releasing, or disposing of any substitute
refrigerant in the course of maintaining, servicing, repairing, or
disposing of an appliance
[[Page 82284]]
in a manner which permits the substance to enter the environment.\10\
This creates a tension or ambiguity because the regulated community is
subject to an explicit and self-effectuating prohibition on venting,
releasing, or disposing of non-exempt substitute refrigerants while
maintaining, servicing, repairing, or disposing of equipment but at the
same time is not explicitly required by section 608(a) to recover
substitute refrigerant prior to servicing or disposing of equipment or
to engage in any of the practices or behaviors that EPA has established
to minimize the emission and release of ODS refrigerants during such
maintenance, service, repair, or disposal.
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\10\ As noted previously, this venting prohibition does not
apply to substitutes for which the Administrator has made a
determination that such venting, release, or disposal ``does not
pose a threat to the environment'' under CAA 608(c)(2). As indicated
elsewhere in this notice, EPA is not extending the requirements of
the refrigerant management program to substitutes that have been
exempted from the venting prohibition in this action. Where a
substitute has been exempted only in specific uses, the requirements
in this rule apply to uses in which the substitute has not been
exempted.
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Moreover, some amount of refrigerant, whether ODS or substitute, is
inevitably released during the maintenance, servicing, repair, and
disposal of air-conditioning or refrigeration appliances or equipment.
Without a clear regulatory framework for determining what requirements
apply during the maintenance, servicing, repair, and disposal of such
equipment containing a non-exempt substitute refrigerant, the regulated
community and the public would not have the same measure of certainty
as to whether such releases violate the venting prohibition or fall
within the de minimis exemption to that prohibition, and what steps
must be taken to comply with CAA obligations for such substitute
refrigerants in undertaking such actions. Accordingly, this rulemaking
finalizes regulations to interpret and explain how the venting
prohibition and the de minimis exemption apply to non-exempt substitute
refrigerants. In doing so, EPA is clarifying that the regulated
community that uses non-exempt substitute refrigerants may rely on the
de minimis exemption to the venting prohibition if they follow the
amended requirements in subpart F.
Consistent with the language of sections 608(c)(1) and (2), this
rule aims to avoid knowing releases of non-exempt substitute
refrigerants into the environment in the course of maintaining,
servicing, repairing, or disposing of an appliance or IPR, unless those
releases meet the criteria for the de minimis exemption. Section
608(c)(1) provides an exemption from the venting prohibition for ``[d]e
minimis releases associated with good faith attempts to recapture and
recycle or safely dispose of any such [class I or class II]
substance.'' In this context, EPA interprets this provision to exempt
releases that occur while the recycling and recovery requirements of
regulations under sections 608 and 609 are followed and has promulgated
regulations consistent with that interpretation.
In particular, EPA has incorporated both the venting prohibition
and the de minimis exemption into the regulations at Sec. 82.154(a).
Further, the last sentence in the existing regulations at Sec.
82.154(a)(2) provides that ``refrigerant releases shall be considered
de minimis only if they occur when'' enumerated regulatory practices in
subpart F or, alternatively, subpart B are followed. These subpart F
requirements are the ones established in the 1993 rule mentioned above,
and as periodically amended. The term refrigerant, however, was defined
in Sec. 82.152 for purposes of subpart F to mean ``any substance
consisting in part or whole of a class I or class II ozone-depleting
substance that is used for heat transfer purposes and provides a
cooling effect.'' This definition did not include substitute
substances. In addition, EPA had not yet applied the recycling and
recovery requirements to non-ODS substitutes, and therefore these
provisions which make clear how to qualify for the de minimis exemption
for ODS refrigerants did not apply to substitute refrigerants.
EPA interprets section 608(c) such that the statutory de minimis
exemption contained in section 608(c)(1) also applies to substitute
refrigerants. Section 608(c)(2) states that, effective November 15,
1995, ``paragraph 1 shall also apply'' to the venting, release, or
disposal of any substitute substance for class I or class II
substances. As section 608(c)(2) incorporates ``paragraph 1'' it is
reasonable to interpret it to also contain this de minimis exemption,
which is included in paragraph 1 of section 608(c). However, the Act's
exemption applies only to those de minimis releases ``associated with
good faith attempts to recapture and recycle or safely dispose of
refrigerants'' and the Act does not explicitly address what would be
considered such ``good faith attempts to recapture and recycle or
safely dispose'' of either ODS or substitute refrigerants. In fact,
Title VI does not contain any further explanation or definition of
those terms. Moreover, the statutory provisions that require EPA to
promulgate regulations addressing recapturing and recycling
requirements and safe disposal requirements in section 608(a) and
608(b) expressly mention that they apply to ODS refrigerants but are
silent as to application to substitute refrigerants. This silence and
the corresponding tension between these provisions creates an ambiguity
in section 608 and EPA may fill that gap with a permissible
interpretation. Chevron, U.S.A., Inc. v. Natural Res. Def. Council,
Inc., 467 U.S. 837, 843-44 (1984).
Consistent with the interpretation of section 608(c)(2) as
incorporating the de minimis exemption, prior to this rulemaking EPA's
regulations at Sec. 82.154(a)(2) stated that ``[d]e minimis releases
associated with good faith attempts to recycle or recover . . . non-
exempt substitutes are not subject to this prohibition,'' thus applying
the statutory de minimis exemption from the venting prohibition to good
faith efforts to recycle or recover non-exempt substitute refrigerants.
However, in contrast to the regulations for ODS refrigerants, the
regulations did not provide any specific provisions to explain what
constitutes such a ``good faith attempt'' with respect to substitute
refrigerants. Thus, the prior regulations were unclear as to what
requirements or practices regulated parties must follow to qualify for
the de minimis exemption, and thereby comply with the venting
prohibition, for non-exempt substitute refrigerants.
EPA has discussed this issue in previous notices. On June 11, 1998,
EPA proposed to apply the de minimis exemption in section 608(c)(1) to
substitute refrigerants and to issue regulations under section
608(c)(2) that interpret, clarify, and enforce the venting prohibition
for substitutes (63 FR 32044). EPA stated in that proposed rule,
``[w]hile section 608(c) is self-effectuating, EPA regulations are
necessary to define `(d)e minimis releases associated with good faith
attempts to recapture and recycle or safely dispose' of such substances
and to effectively implement and enforce the venting prohibition.'' 63
FR 32046.
In the final rule issued March 12, 2004 (69 FR 11946), EPA extended
the regulations interpreting and enforcing the 608(c)(1) de minimis
exemption to blends containing an ODS component but not to refrigerants
containing only substitutes. As stated in that rule at 69 FR 11949:
[V]enting of all substitute refrigerants, including HFC and PFC
refrigerants (and
[[Page 82285]]
blends thereof) is prohibited under section 608(c), with the
exception of de minimis releases associated with good faith attempts
to recapture and recycle. The de minimis releases exception,
however, is not self-effectuating, nor is it self-explanatory.
EPA believes that regulatory clarification is necessary to
define such `[d]e minimis releases' and `good faith attempts to
recapture and recycle or safely dispose of any such substance' and
safely dispose of appliances to effectively implement and enforce
the venting prohibition. Section 608(c)(1) in conjunction with
608(c)(2) of the Act allow for an exemption for de minimis releases
associated with good faith attempts to recapture and recycle or
safely dispose of substitutes for class I and class II ODSs used as
refrigerants. A regulation reflecting the statutory requirement for
recovery of substitute refrigerants is an essential part of a
regulatory framework within which de minimis releases and good faith
attempts to recapture and recycle or safely dispose of substitute
refrigerants can be defined.
This interpretation that the statutory de minimis exemption applies
to substitutes but is not self-explanatory is consistent with the
interpretation of section 608(c)(1) and (2) that EPA articulates in
this section. However, in the March 2004 Rule EPA did not finalize its
proposal to extend all of the subpart F regulations to substitute
refrigerants. See 69 FR 11953.
Following the March 12, 2004, rulemaking, the Administrator
promulgated a direct final rule to amend the regulatory definitions of
refrigerant and technician, as well as the venting prohibition, to
correct and clarify the intent of those regulations (70 FR 19273, April
13, 2005). As part of that rule, EPA edited the regulatory venting
prohibition to reflect the statutory de minimis exemption in section
608(c)(2). As explained at 70 FR 19275:
In accordance with section 608(c)(2) of Title VI of the Clean
Air Act (as amended in 1990), de minimis releases associated with
good faith attempts to recapture and recycle or safely dispose of
such substitutes shall not be subject to the prohibition. EPA has
not promulgated regulations mandating certification of refrigerant
recycling/recovery equipment intended for use with substitutes;
therefore, EPA is not including a regulatory provision for the
mandatory use of certified recovery/recycling equipment as an option
for determining de minimis releases of substitutes. However, the
lack of a regulatory provision should not be interpreted as an
exemption to the venting prohibition for non-exempted substitutes.
The regulatory prohibition at Sec. 82.154(a) reflects the statutory
reference to de minimis releases of substitutes as they pertain to
good faith attempts to recapture and recycle or safely dispose of
such substitutes.
In order to emphasize that the knowing venting of HFC and PFC
substitutes remains illegal during the maintenance, service, repair,
and disposal of appliances and to make certain that the de minimis
exemption for refrigerants remains in the regulatory prohibition,
Sec. 82.154(a) is amended to reflect the venting prohibition of
section 608(c)(2) of the Act.
In that action, EPA added the phrase ``[d]e minimis releases
associated with good faith attempts to recycle or recover refrigerants
or non-exempt substitutes are not subject to this prohibition'' to
Sec. 82.154(a)(2) (emphasis added). However, because EPA has not
extended the regulatory recycling and recovery requirements to
substitute refrigerants, the regulations have not provided clarity or
certainty how this exception applies to non-exempt substitute
refrigerants that do not contain an ODS. Moreover, as for ODS, some
amount of substitute refrigerant is released during the maintenance,
servicing, repair, or disposal of appliances, even if precautions to
avoid such releases are taken. For ODS refrigerants, the rules have
provided certainty to the regulated community that if specific
identified practices are followed, regulated entities would not be held
liable for releases of small amounts of refrigerant incidental to these
actions. These regulations have supported the recovery or recycling of
ODS refrigerants and reduced the emissions of such substances. In other
words, for ODS, EPA has reasonably interpreted the de minimis exemption
to apply only to the small amount of emissions that cannot be prevented
by following the regulatory requirements. This interpretation of the de
minimis exemption is equally reasonable for non-exempt substitute
refrigerants. Accordingly, to provide the same clarity and certainty to
the regulated community for substitute refrigerants, it is important to
clarify how this exemption applies to non-exempt substitute
refrigerants that do not contain an ODS. To do so, EPA is finalizing
its proposal to extend the amended regulations concerning emissions
reduction and recapture and recycling of CFC and HCFC refrigerants,
found at 40 CFR part 82, subpart F, to all substitute refrigerants that
have not been exempted from the venting prohibition under Sec.
82.154(a)(1).
These regulations establish standards and requirements related to
the maintenance, servicing, repair, or disposal of appliances and IPR
that use ODS or non-exempt substitutes as refrigerants. They are
designed to minimize or avoid knowing releases or disposal, in the
course of those activities, of ODS and non-exempt substitute
refrigerants in a manner which allows that substance to enter the
environment. For example, the regulations establish requirements to
minimize emissions during appliance maintenance, servicing, or repair
(e.g., by requiring that technicians recover refrigerant from an
appliance before servicing and by setting standards for the repair of
appliances that have leaked above the applicable threshold), as well as
disposal (e.g., by requiring the use of certified recovery equipment to
remove refrigerant from the appliance before the final disposal).
Accordingly, the regulations finalized in this action fall within the
scope of EPA's authority to interpret and explain the venting
prohibition, and to give regulated entities greater certainty about
what is required to comply.
EPA is also adopting a broader interpretation of the venting
prohibition under CAA sections 608(c)(1) and (2) in this action. As
discussed in more detail in the proposal for this action (80 FR 69486),
in the 1993 Rule EPA stated that the venting prohibition did not
``prohibit `topping off' systems, which leads to emissions during the
use of equipment'' but explained that the ``provision on knowing
releases does however, include the situation in which a technician is
practically certain that his or her conduct will cause a release of
refrigerant during the maintenance, service, repair, or disposal of
equipment'' or fails to appropriately investigate facts that demand
investigation (58 FR 28672). The proposal also explained that EPA had
subsequently moved toward a broader interpretation of the venting
prohibition in the proposed 2010 Leak Repair Rule (80 FR 69486, quoting
75 FR 78570). EPA concludes that its statements in the 1993 Rule
presented an overly narrow interpretation of the statutory venting
prohibition. Consistent with the direction articulated in the proposed
2010 Leak Repair Rule, EPA is adopting a broader interpretation. When
refrigerant must be added to an existing appliance, other than when
originally charging the system or for a seasonal variance, the owner or
operator necessarily knows that the system has leaks. At that point the
owner or operator is required to calculate the leak rate. If the leaks
exceed the applicable leak rate for that particular type of appliance,
the owner or operator will know that absent repairs, subsequent
additions of refrigerant will be released in a manner that will permit
the refrigerant to enter the environment. Therefore, EPA interprets
section 608(c) such that if a person adds refrigerant to an appliance
that he or she knows is leaking, he or she also violates the venting
prohibition unless he or she has complied with the applicable practices
[[Page 82286]]
referenced in Sec. 82.154(a)(2), as revised, including the leak repair
requirements, as applicable.
This action extending the regulations under subpart F to non-exempt
substitutes is additionally supported by the authority in section
608(a) because regulations that minimize the release and maximize the
recapture and recovery of non-exempt substitutes will also reduce the
release and increase the recovery of ozone-depleting substances.
Improper handling of substitute refrigerants is likely to contaminate
appliances and recovery cylinders with mixtures of ODS and non-ODS
substitutes, which can lead to illegal venting because such mixtures
are difficult or expensive to reclaim or appropriately dispose of.
Under the prior definition of refrigerant, any substance that consists
in whole or in part of a class I or class II ODS and is used for heat
transfer and provides a cooling effect, is a refrigerant and is subject
to the requirements for ODS. However, when a regulated entity believes
it is using a substitute refrigerant, and that substitute becomes
contaminated with ODS, the contamination may not be apparent to the
user, and thus, the user may not be aware that the requirements for
refrigerants apply to that substance. This confusion can also lead to
illegal venting of ODS. In short, the authority to promulgate
regulations regarding the use of class I and II substances encompasses
the authority to establish regulations regarding the proper handling of
substitutes where this is needed to reduce emissions and maximize
recapture and recycling of class I and II substances. Applying
consistent requirements to all non-exempt refrigerants will reduce
complexity and increase clarity for the regulated community and promote
compliance with those requirements for ODS refrigerants, as well as
their substitutes.
2. Recordkeeping Provisions
In this action, EPA is also establishing new recordkeeping
requirements, as well as extending existing recordkeeping requirements
to non-exempt substitutes. EPA's authority to establish and extend
these requirements is supported by CAA sections 608(a), 608(c), and
114, consistent with the description of these authorities offered
above. These new recordkeeping requirements are an important part of
EPA's efforts to address illegal venting of refrigerants, improve
accounting of refrigerants in affected appliances, and facilitate
enforcement of requirements under section 608. For example, EPA is
establishing a new recordkeeping requirement for the disposal of
appliances containing more than five and less than 50 pounds of
refrigerant. Section 608(a) gives EPA explicit authority to implement
requirements that reduce ODS refrigerant emissions to the lowest
achievable level. This recordkeeping requirement, along with other
recordkeeping requirements in this rule, further the recovery,
reclamation, and/or destruction of ODS refrigerants and discourages the
illegal venting of such refrigerants from affected appliances. Because
it minimizes the emission of ODS refrigerant, EPA has authority for
this requirement as it relates to ODS appliances under 608(a).
Additionally, providing a consistent standard for ODS and non-exempt
substitute refrigerants will facilitate the recovery, reclamation, and/
or destruction of both ODS and non-ODS refrigerants and, accordingly,
will reduce the emission of such refrigerants. EPA will continue to
evaluate how best to use the information to promote the recovery of
refrigerants and compliance with these provisions.
EPA also has authority under section 114 of the CAA to require that
technicians document that appliances containing an ODS refrigerant or a
non-exempt substitute refrigerant have been properly evacuated prior to
disposal. Section 114 of the CAA provides the primary authority to
establish these recordkeeping and reporting requirements because it
provides EPA authority to require recordkeeping and reporting in
carrying out provisions of the CAA, including the venting prohibition
under CAA sections 608(c) and the requirements under 608(a). Because
these records will help EPA determine whether requirements under
sections 608(c) and 608(a) are being complied with, this requirement
falls within the scope of section 114.
3. Amendments Related to Practices and Requirements for ODS
In addition to extending the existing regulations in subpart F to
non-exempt substitute refrigerants, EPA is also revising and augmenting
the existing requirements that apply to ozone-depleting substances,
including: Lowered leak rates, periodic leak inspections for equipment
that has leaked above the leak threshold, leak repair verification
tests, and recordkeeping requirements for the disposal of appliances
containing more than five and less than 50 pounds of refrigerant. EPA
is also finalizing its proposal to update and revise subpart F to
improve clarity and enforceability. EPA's authority for these
amendments is based primarily on section 608(a), which requires EPA to
promulgate regulations regarding the use and disposal of class I and II
substances to ``reduce the use and emission of such substances to the
lowest achievable level'' and ``maximize the recapture and recycling of
such substances.'' In addition, because EPA is further elaborating the
requirements and practices that regulated parties must follow to
qualify for the de minimis exemption from the venting prohibition for
ODS, EPA is drawing on its authority under section 608(c)(1). EPA's
authority for these actions is also supplemented by section 301(a) and
114, in the same way as described earlier in this notice.
4. Provisions Related to MVAC and MVAC-Like Appliances
While section 608 covers all appliances,\11\ section 609 of the CAA
directs EPA to establish requirements to prevent the release of
refrigerants during the servicing of MVACs specifically. MVACs are
defined under EPA's section 608 implementing regulations at 40 CFR part
82, subpart F as ``any appliance that is a motor vehicle air
conditioner as defined in 40 CFR part 82, subpart B.'' 40 CFR 82.152.
Under section 609, in 40 CFR part 82, subpart B, MVACs are defined as
``mechanical vapor compression refrigeration equipment used to cool the
driver's or passenger's compartment of any motor vehicle. . . .'' 40
CFR 82.32(d).
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\11\ For EPA's discussion on the definition of appliance, see
Section IV.A.
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A motor vehicle is defined under subpart B as ``any vehicle which
is self-propelled and designed for transporting persons or property on
a street or highway, including but not limited to passenger cars, light
duty vehicles, and heavy duty vehicles. This definition does not
include a vehicle where final assembly of the vehicle has not been
completed by the original equipment manufacturer.'' 40 CFR 82.32(c).
Under section 609, no person repairing or servicing motor vehicles
for consideration may perform any service on an MVAC that involves the
refrigerant without properly using approved refrigerant recovery or
recovery and recycling equipment and no such person may perform such
service unless such person has been properly trained and certified.
Refrigerant handling equipment must be certified by EPA or an
independent organization approved by EPA. Section 609 also prohibits
the sale or distribution of any class I or class II MVAC refrigerant in
a container of less
[[Page 82287]]
than 20 pounds to any person who is not certified under section 609.
Regulations issued under section 609 are in 40 CFR part 82, subpart
B, and include information on prohibitions and required practices
(Sec. 82.34), approved refrigerant handling equipment (Sec. 82.36),
approved independent standards testing organizations (Sec. 82.38),
requirements for technician certification and training programs (Sec.
82.40), and certification, recordkeeping, and public notification
requirements (Sec. 82.42). Appendices A-F of subpart B provide
standards for minimum operating requirements for MVAC servicing
equipment.
Because MVACs are defined in subpart F as an ``appliance'' (Sec.
82.152), the section 608 regulations found in subpart F are generally
applicable to MVAC systems. However, because servicing and technician
training and certification are regulated under section 609, EPA's
section 608 regulations in subpart F defer to those requirements in
subpart B. Procedures involving MVACs that are not regulated under
section 609, such as the disposal of MVACs and the purchase of
refrigerant for use in MVACs besides ODS refrigerant in containers less
than 20 pounds, are covered by section 608. The prohibition in section
608 against venting ODS and substitute refrigerants is also applicable
to refrigerants used in MVAC systems.
EPA also regulates MVAC-like appliances under subpart B. MVAC-like
appliances are used to cool the driver's or passenger's compartment of
off-road vehicles, including agricultural and construction
vehicles.\12\ While these types of systems are outside of the scope of
the definition of motor vehicle established in subpart B, there are
similarities between MVAC-like appliances and MVAC systems. In the 1993
Rule, under the authority of section 608, EPA adopted requirements for
the certification and use of recycling equipment for MVAC-like
appliances in subpart B. MVAC-like appliances may only be serviced by a
certified technician and this requirement is not limited to those
servicing for consideration, but MVAC-like technicians have the option
to be certified under section 608 or 609.
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\12\ We are amending the subpart F definition of ``MVAC-like
appliance'' to replace the term ``off-road motor vehicle'' with the
term ``off-road vehicles or equipment.'' This revision is not
intended to effect a substantive change in the equipment covered by
this definition but rather simply is intended to clarify the
definition.
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Through this rulemaking EPA is finalizing its proposal to apply the
provisions of section 608 to non-exempt ODS substitutes, including
those used in MVAC and MVAC-like appliances. EPA is not extending the
regulations under section 609 as part of this rulemaking because the
609 regulations have been applicable to all substitute substances since
1995.\13\
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\13\ The Agency has indicated plans to issue a separate proposed
rule to consider adopting standards from the Society of Automotive
Engineers (SAE) for servicing equipment in 40 CFR subpart B. These
standards are: SAE J2843 R-1234yf Recovery/Recycling/Recharging
Equipment for Flammable Refrigerants for Mobile Air-Conditioning
Systems, SAE J2851 Recovery Equipment for Contaminated Refrigerant
from Mobile Automotive Air Conditioning Systems, and SAE J3030
Automotive Refrigerant Recovery/Recycling Equipment Intended for Use
with Multiple Refrigerants. In a future rulemaking, EPA intends to
propose to incorporate by reference these standards developed by SAE
International's Interior Climate Control Committee.
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5. Consideration of Economic Factors
Section 608 of the CAA does not explicitly address whether costs or
benefits should be considered in developing regulations under that
section. The statutory standards under section 608(a) against which the
regulations concerning the use and disposal of ozone-depleting
substances are to be measured are whether they ``reduce the use and
emission of such substances to the lowest achievable level'' and
``maximize the recapture and recycling of such substances.'' The phrase
``lowest achievable level'' as used in section 608(a)(3) is not clear
on its face as to whether economic factors should be considered in
determining what is the ``lowest achievable level.'' Title VI does not
further explain or define the term nor does it expressly state whether
economic factors may or must be considered. Thus, EPA has discretion to
adopt a reasonable interpretation. EPA has previously interpreted this
phrase to allow the consideration of economic factors. See 58 FR 28659,
28667 (May 14, 1993). EPA did not propose to revise that interpretation
and has considered economic as well as technological factors in the
development of this rule.
The phrase ``de minimis releases associated with good faith
attempts to recapture and recycle or safely dispose of any such
substance'' as used in section 608(c)(1) and as applied to substitutes
through section 608(c)(2) is similarly not clear on its face as to
whether economic factors may be considered in determining what is de
minimis. Title VI does not further address this issue. Thus, EPA has
discretion to adopt a reasonable interpretation. EPA interprets this
phrase to allow the consideration of economic factors. The Senate
Manager's Statement for the Clean Air Act Amendments of 1990 indicates
that ``the exception is included to account for the fact that in the
course of properly using recapture and recycling equipment, it may not
be possible to prevent some small amount of leakage'' (Cong. Rec. S
16948 (Oct. 27, 1990), reprinted in 1 A Legislative History of the
Clean Air Act Amendments of 1990, at 929 (1993)). EPA does not read
this statement as expressing an intent that the Agency consider only
technological factors in setting standards for recapture and recycling
equipment and the proper use of such equipment. Rather, EPA understands
it as meaning that once those standards are set, only the small amount
of emissions that cannot be prevented by following such standards
should be exempted.
Because the statutory language does not dictate a particular means
of taking economic factors into account, if at all, EPA has discretion
to adopt a reasonable method for doing so. In developing this rule, EPA
has not applied a strict cost-benefit test, but rather has focused
primarily on the state of air conditioning and refrigeration best
practices and recovery technology, while also giving consideration to
costs and benefits. The fact that industry has identified and uses
these best practices indicates they are affordable.
EPA considered cost for many specific aspects of this rule. For
instance, as discussed in the leak repair section (Section IV.F of this
notice), EPA considered what is achievable from a technical
perspective, while also considering the costs of those practices and
technologies and the benefits from their use, when determining whether
to establish new requirements and extending existing requirements to
non-exempt substitute refrigerants. See the technical support document
Analysis of the Economic Impact and Benefits of Final Revisions to the
National Recycling and Emission Reduction Program in the docket for
sensitivity analyses conducted on various options. Generally, the leak
repair requirements finalized in this action take into account that the
variability of those conditions in the field is significant in each
air-conditioning and refrigeration sector. For example, some appliances
generally have more leaks than others. An industrial process
refrigeration appliance can have thousands of pounds of refrigerant
running through miles of piping, resulting in numerous opportunities
for leaks to occur, whereas a household refrigerator typically has
about one pound of refrigerant in a hermetically sealed refrigerant
loop that rarely leaks. The
[[Page 82288]]
requirements in this rule reflect that difference.
As another example, EPA considered the costs of extending the
refrigerant sales restriction to small cans of non-exempt substitutes
used for MVAC servicing. EPA decided a more cost effective method of
reducing emissions is requiring that manufacturers install self-sealing
valves on small cans rather than limiting the sale of small cans to
certified technicians only. As a final example of how EPA considered
costs in this rulemaking, EPA relied heavily on the existing program
and requirements already in place for ODS refrigerants rather than
developing a new and separate set of requirements for non-exempt
substitutes. This will allow the regulated community to in many
instances use or adapt existing compliance procedures for non-exempt
substitutes rather than having to develop wholly new approaches to
managing compliance. This approach should help regulated entities to
better predict and manage compliance costs.
B. Comments and Responses Related to EPA's Authority
This section summarizes many comments related to EPA's authority
under the Clean Air Act to issue this rule and EPA's responses. Other
comments related to EPA's authority for this action are addressed in
the response to comments document found in the docket for this action.
1. Comment: EPA Does Not Have Authority To Regulate Substitutes That
Have Limited or No Impact on Stratospheric Ozone Under Section 608
Some comments asserted that EPA does not have the authority to
extend the existing refrigerant management provisions in subpart F to
non-ozone depleting refrigerants. Some commenters stated that under a
plain language reading of section 608(a) it is clear that regulations
to reduce use and emissions apply only to class I and class II
substances and not substitutes. These comments said the language of
section 608 as a whole authorizes a wide range of prescriptive
regulations to reduce the use and emissions of class I and class II
refrigerants but mentions substitutes only twice: That their use be
promoted and the general requirement that their knowing venting is
prohibited.
On the contrary, other comments agreed that EPA had authority to
extend these regulations to substitutes. One such comment stated: ``We
believe that both the language of section 608 and the Agency's
discretionary authority allow the extension of section 608's
requirements to substitutes for ODS in the regulations.'' \14\ These
commenters noted that extending these regulations to substitutes allows
for a coherent and robust regime to address venting across the full
suite of appliances and applications, and that applying the regulatory
regime to substitute refrigerants would more fully allow for and
incentivize the recovery and reclamation of both ODS and substitutes.
These comments concluded that because ODS and substitutes can be used
interchangeably, the regulation of substitutes reinforces the
regulation of ODS and more reliably reduces ODS emissions. Another
commenter who generally believes the Agency does not have authority to
apply the leak repair provisions to appliances using substitute
refrigerants does concede that there may be provisions of subpart F
which are directly related to emissions occurring in the course of
maintenance, service, repair or disposal activities and might be
reasonably extended to substitute refrigerants.
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\14\ Comment submitted by Natural Resources Defense Council and
Institute for Governance and Sustainable Development, David Doniger,
et. al., pg. 3. EPA-HQ-OAR-2015-0453-0121.
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EPA disagrees that its regulatory authority under CAA section 608
extends only to class I and class II (ODS) substances and not to
substitutes. EPA also disagrees with comments contending that, as a
factual matter, extension of the refrigerant management regulations to
substitutes would not reduce emissions of ODS and maximize the
recapturing and recycling of ODS. Section 608 expressly addresses
substitute refrigerants in the venting prohibition in section
608(c)(2). As explained previously in this notice, EPA's authority for
extending the refrigerant management regulations to substitute
refrigerants is based primarily on section 608(c)(2) (via
interpretation, explanation, and enforcement of the venting prohibition
for substitutes) and secondarily on section 608(a) (via the
corresponding reductions in ODS emissions and increases in ODS
recapture and recycling that are expected to result from requiring
consistent practices for ODS and substitute refrigerants), with
additional support from CAA sections 301 and 114.
More specifically with respect to section 608(a), that section
states that the regulations under that section shall include
requirements that reduce the use and emission of ODS to the lowest
achievable level and that maximize their recapture and recycling. EPA's
interpretation that section 608(a) supports the extension of the
refrigerant management regulations to substitutes is based on reducing
emissions of ODS and maximizing recapturing and recycling of ODS. This
is because requiring practices that are consistent for both ODS and for
substitutes reduces the likelihood that a person maintaining,
servicing, repairing, or disposing of an appliance that uses ODS as a
refrigerant mistakenly believes that it contains a substitute
refrigerant and fails to apply the proper procedures for ODS, leading
to increased ODS emissions or failure to recover or reclaim ODS. It is
also because in the course of servicing, repairing, or maintaining
appliances there is a potential for mixing ODS and substitute
refrigerants, which may lead to venting or release of the mixture due
to the difficulty of reclamation. EPA has explained that the venting
prohibition applies to all refrigerants consisting in whole or in part
of an ODS, such as a blend with an HFC component. (See 69 FR 11949).
Accordingly, the commenters' statements that section 608(a) only
applies to class I and class II substances fail to recognize that
regulation of substitutes can help effectuate the statutory purposes
mentioned in section 608(a). EPA is relying in part on section 608(a)
for the extension of regulatory requirements to substitutes because it
interprets this provision to support regulation of substitutes when
such regulations can help achieve the purposes listed in section
608(a). The extension of regulatory requirements to substitutes in this
action is supported by section 608(a) because that extension of
requirements to substitutes is expected to reduce ODS emissions and
further maximize the recovery and reclamation of ODS. After
consideration of all the comments, EPA concludes that it has authority
to extend the refrigerant management regulations to substitutes, and
that section 608(a) is a relevant source of authority because applying
a consistent and coherent regulatory regime to both ODS and substitute
refrigerants improves the application of the requirements to ODS,
promoting the recovery and reclamation of ODS and reducing ODS
emissions. Such ODS-focused goals are well within EPA's authority under
CAA section 608(a).\15\
---------------------------------------------------------------------------
\15\ Although these comments do not relate to EPA's authority to
regulate ODS, we do note for completeness' sake that CAA section
608(a) also provides authority for the portions of this rulemaking
that revise the refrigerant management requirements as those apply
directly to ODS.
---------------------------------------------------------------------------
Commenters also disagreed with EPA's statement that there is
ambiguity in the CAA regarding the Agency's authority to create a
comprehensive regulatory program akin to that
[[Page 82289]]
applicable to class I and class II ODS. These commenters expressed that
Congress explicitly addressed substitutes in section 608(c)(2) and did
not in section 608(a) and that Congress was fully aware and capable of
granting EPA authority to regulate substitutes under section 608(a) and
it chose not to do so. They further commented that Congress knew which
provisions of Title VI it wished to extend to substitutes and which it
did not, and pointed to sections 609, 612, and 615 as allowing EPA to
regulate substitutes. These comments concluded that Congress
demonstrated that it knew how to include substitutes in refrigerant
management regulations if it wanted to.
EPA recognizes that Congress expressly mentioned substitutes in
certain sections of Title VI of the CAA, such as section 608(c)(2). In
EPA's interpretation of section 608, the fact that Congress expressly
applied the venting prohibition to substitutes in section 608(c)(2)
supports this action because this action clarifies how EPA interprets
that venting prohibition and explains what actions must be taken during
the maintenance, servicing, repair, or disposal of appliances and IPR
to avoid violating the venting prohibition. The inclusion of
substitutes in section 608(c)(2) also indicates that Congress
contemplated that regulation of substitutes would play a role in
implementing section 608. The ambiguity in section 608 is that Congress
created an explicit prohibition on venting substitute refrigerants in
the course of maintaining, servicing, repairing, or disposing of
appliances or IPR, and also provided an exception to that prohibition
for ``de minimis releases associated with good faith attempts to
recapture and recycle or safely dispose'' of such substances. CAA
section 608(c)(1); see also CAA section 608(c)(2) (applying paragraph
(c)(1) to the venting, release, or disposal of substitute
refrigerants). Congress, however, did not define what releases would be
considered ``de minimis'' nor which activities would be considered
``good faith attempts to recapture and recycle or safely dispose'' of
such substances. Where Congress has not directly spoken to an issue or
has left ambiguity in the statute, that silence or ambiguity creates an
assumption that ``Congress implicitly delegated to the agency the power
to make policy choices that represent a reasonable accommodation of
conflicting policies that are committed to the agency's care by the
statute.'' National Ass'n of Mfrs. v. United States DOI, 134 F.3d 1095,
1106 (D.C. Cir. 1998). As the U.S. Supreme Court has explained, the
``power of an administrative agency to administer a congressionally
created . . . program necessarily requires the formulation of policy
and the making of rules to fill any gap left, implicitly or explicitly,
by Congress.'' Chevron, 467 U.S. at 843-44. The Court later explained,
``[w]e accord deference to agencies under Chevron, . . . because of a
presumption that Congress, when it left ambiguity in a statute meant
for implementation by an agency, understood that the ambiguity would be
resolved, first and foremost, by the agency, and desired the agency
(rather than the courts) to possess whatever degree of discretion the
ambiguity allows.'' Smiley v. Citibank (s.D.), N.A, 517 U.S. 735, 740-
741 (1996). Accordingly, Congress's silence with regard to the venting
prohibition and the exception for certain releases leaves a gap for the
Agency to fill, as it is doing in this rulemaking.
In addition to the statutory interpretation and the principle of
Chevron deference discussed above, the legislative history further
supports the notion that Congress anticipated and intended for the
Agency to establish regulations that would further interpret, explain,
and enforce the exception to the venting prohibition. A Senate Report
accompanying a version of the Senate bill for the Clean Air Act
Amendments of 1990, which enacted Title VI, addressed the venting
prohibition and described that it would include ``[e]xceptions . . .
for de minimis releases associated with good faith attempts to
recapture, recycle and safely dispose of'' the substances used as
refrigerants in household appliances, commercial refrigeration and air
conditioning units. Report of the Committee on Environment and Public
Works United States Senate, Report Accompanying S. 1630 (S. Rept. 101-
228) (December 20, 1989) at 396 (reprinted in 4 A Legislative History
of the Clean Air Act Amendments of 1990, at 8736 (1993)). This report
further stated that the standards and requirements that EPA was
required to promulgate ``should include provisions to foster
implementation of this prohibition, including guidance on what
constitutes `de minimis' and `good faith'.'' Id. Thus, EPA reasonably
interprets the ambiguity in section 608(c) to mean that in creating the
exception to the venting prohibition, Congress intended for the Agency
to provide additional specificity regarding how a regulated entity
would qualify for this exception. This rulemaking provides such
additional specificity and further articulates the policy of how this
exception is interpreted, explained, and enforced.
While EPA acknowledges that section 608(a) does not explicitly
mention substitutes, we disagree with the conclusion that the comment
draws from that. The fact that Congress required EPA to address ODS in
a certain manner under section 608(a) is not the same as prohibiting
EPA from addressing other refrigerants in the same manner. EPA has
explained in the preceding response to comments how it interprets
section 608(a) to support this rulemaking.
Some commenters contend that Congress specifically listed class I
and class II substances for coverage under the regulations and under
the principle of expressio unius est exclusio alterius, regulations
cannot be applied to refrigerants that are neither class I or class II
substances. This rule of statutory interpretation, which has limited
force in an administrative law setting, means that the inclusion of one
thing implies the exclusion of another thing. However, the fact that
Congress mandated certain measures for ODS but was silent regarding
appropriate measures for substitutes does not mean that Congress
prohibited EPA from adopting similar measures for substitutes. See
Cheney R.R. Co. v. ICC, 902 F.2d 66, 69 (D.C. Cir. 1990) (``The
contrast between Congress's mandate in one context with its silence in
another suggests not a prohibition but simply a decision not to mandate
any solution in the second context, i.e., to leave the question to
agency discretion.'')
Commenters stated that section 608(c) is self-implementing and no
promulgation of regulations by EPA is required or contemplated to
implement such prohibition. In contrast, 608(a) and (b) require EPA to
promulgate regulations to establish ``standards and requirements.''
These standards and requirements are different in kind and broader than
the 608(c) statutory prohibition. EPA cannot merge the distinct
requirements of 608(a) and (b) with the statutory prohibition of
608(c). Another commenter stated that in trying to apply section 608(b)
to any substitute substance, EPA is inferring authority that is not
there.
EPA agrees that the prohibition under 608(c) as it applies to the
knowing venting or releasing of ODS and substitutes is itself self-
implementing. However, that fact does not preclude EPA from
establishing regulations to include the prohibition in the overall
context of the regulatory scheme and to promulgate rules to further
interpret, explain, and enforce it, including by
[[Page 82290]]
providing certainty to enhance compliance. Indeed, EPA's prior
regulations at 40 CFR 82.154 included the venting prohibition. More
specifically, these regulations provided that ``no person maintaining,
servicing, repairing, or disposing of appliances may knowingly vent or
otherwise release into the environment any refrigerant or substitute
from such appliances'' and then provided for exceptions from this
prohibition for specified substitutes in specified end-uses. These
exceptions implemented the discretion Congress left EPA under 608(c)(2)
to exempt certain releases from the venting prohibition, if the
Administrator has determined that ``venting, releasing, or disposing of
such substance does not pose a threat to the environment.'' CAA section
608(c)(2). Contrary to the comment, the inclusion of this discretion in
section 608(c)(2) indicates that Congress intended for the EPA to have
authority to implement aspects of the prohibition and in fact left gaps
in this section that it expected EPA would fill as appropriate.
Similarly, as discussed in the preceding response, the legislative
history indicates that in establishing the venting prohibition,
Congress expected EPA to promulgate regulatory ``provisions to foster
implementation of this prohibition, including guidance on what
constitutes `de minimis' and `good faith'.'' Report of the Committee on
Environment and Public Works United States Senate, Report Accompanying
S. 1630 (S. Rept. 101-228) (December 20, 1989) at 396 (reprinted in 4 A
Legislative History of the Clean Air Act Amendments of 1990, at 8736
(1993)). Consistent with that Congressional intent, the prior
regulations at 40 CFR 82.154 included provisions clarifying that
``[ODS] releases shall be considered de minimis only if they occur
when'' certain regulatory requirements are observed. 40 CFR
82.154(a)(2). However, those regulations did not provide the same
clarity regarding releases of non-exempt substitute refrigerants or
what practices would be considered to fall within the ambit of ``good
faith attempts to recycle or recover'' non-exempt substitute
refrigerants. 40 CFR 82.154(a)(2). Because Congress provided this
exception to the venting prohibition for substitutes under section
608(c)(2) but did not specify what practices or actions should be taken
to qualify for this exception, it is reasonable to interpret this
provision as indicating that Congress contemplated that EPA would
resolve this ambiguity.
While Congress did not establish specific rulemaking authority
under section 608(c)(2), Congress did provide a general grant of
authority in CAA section 301(a)(1) to ``prescribe such regulations as
are necessary to carry out [the Administrator's] functions under'' the
CAA. This rulemaking authority supplements EPA's authority under
section 608 by authorizing EPA to promulgate regulations necessary to
carry out its functions under section 608, including regulations
necessary to interpret the venting prohibition and exceptions to it.
EPA disagrees with the commenter that it is impermissibly merging
the distinct requirements of CAA sections 608(a) and (b) with section
608(c). While EPA's regulations under section 608(b) are simply one
part of the regulations required under section 608(a), EPA is not
relying on section 608(b) to justify its extension of the section 608
regulations to substitutes in this rulemaking. The role of EPA's
section 608(a) authority in this rulemaking has been discussed above,
in a prior response to comment. Moreover, as noted above, the fact that
Congress required EPA to address ODS refrigerants in specific way under
section 608(a), or section 608(b) for that matter, is not the same as
precluding EPA from addressing other refrigerants in a similar fashion.
Likewise, where EPA has authority to establish regulations for non-
exempt substitute refrigerants, the fact that it has exercised its
authority to establish similar regulations for other refrigerants does
not prevent it from exercising its authority to regulate non-exempt
substitute refrigerants in a similar manner.
One commenter stated that using section 608(c) to establish the
same requirements as authorized under section 608(a) renders section
608(a) null and stated that statutory language should not be read in a
manner that renders other provisions of the statute inconsistent,
meaningless or superfluous.
EPA disagrees with this comment. Unlike section 608(c), section
608(a) is not limited to refrigerants. EPA has applied its authority
under section 608(a) to establish or consider regulations for ODS in
non-refrigerant applications. As an example, in 1998, EPA issued a rule
on halon management under the authority of section 608(a)(2) (63 FR
11084, March 5, 1998). In that action, EPA noted that section 608(a)(2)
``directs EPA to establish standards and requirements regarding the use
and disposal of class I and II substances other than refrigerants.'' 63
FR 11085. Similarly, EPA considered whether to establish a requirement
to use gas impermeable tarps to reduce emissions of methyl bromide
under section 608(a)(2), ultimately determining not to do so for
technological and economic reasons. 63 FR 6008 (February 5, 1998). In
that action, EPA noted: ``[s]ection 608(a)(1) of the Act provides for a
national recycling and emission reduction program with respect to the
use and disposal of Class I substances used as refrigerants. Section
608(a)(2) provides for such a program with respect to Class I and Class
II substances not covered by section 608(a)(1).'' 63 FR 6008.
Accordingly, this interpretation of section 608(c)(2) to allow EPA to
establish requirements for non-exempt substitute refrigerants similar
to those established under section 608(a) for ODS refrigerants does not
render section 608(a) null or superfluous. Although EPA interprets its
substantive authority under both sections 608(a) and 608(c) to support
application of the refrigerant management requirements to both ODS and
non-exempt substitute refrigerants, that is different from asserting
that its section 608(c) authority would extend to any requirement that
could be imposed under section 608(a). EPA was required to establish
certain regulations for ODS refrigerants under section 608(a) and then
decided to use those provisions to interpret and explain the venting
prohibition for ODS under section 608(c). The fact that EPA is now
electing to use the same requirements under section 608(c) for
substitutes does not render 608(a) a nullity. EPA could have
established different requirements to interpret and explain the venting
prohibition, but for the reasons discussed above, decided to make the
requirements consistent for both ODS and substitutes.
2. Comment: Congress Did Not Regulate Substitutes Because It Wanted To
Create Incentives To Use Substitute Refrigerants
One commenter asserted that applying detailed refrigerant
management requirements to substitutes discourages the development of
substitutes as it eliminates the incentive to operate with fewer
regulatory requirements. Another commenter stated that the current
regulations provide an opt-out incentive to owners that voluntarily
retrofit to a non-ozone depleting substitute and suggested that EPA
should seek to revise the proposed rule so that it continues to provide
similar incentives.
EPA disagrees that applying the refrigerant management requirements
to non-exempt substitute refrigerants will discourage the development
of substitutes. At this point in time, there are other incentives to
either retrofit or
[[Page 82291]]
replace existing equipment that relies on ODS. Most ODS have been
completely phased out and the HCFC phaseout is well underway.
Allowances for domestic consumption of the most common HCFC
refrigerant, HCFC-22, are set at 5.6 percent of baseline for 2016 and
will decline to zero in 2020 (40 CFR 82.16, 82.15(e)). In addition, use
restrictions issued pursuant to section 605(a) prohibit use of newly
produced HCFC-22 in equipment manufactured on or after January 1, 2010
(40 CFR 82.15(g)(2)). The section 605(a) use restrictions further
prohibit use of newly produced HCFC-123 in equipment manufactured on or
after January 1, 2020 (40 CFR 82.15(g)(4)). While used HCFCs are not
subject to these restrictions, the HCFC phaseout and the restrictions
on use of newly produced HCFCs provide clear market signals regarding
future availability of HCFC refrigerants.
In addition, while some provisions of the statute indicate
Congressional intent to encourage companies to use safer alternatives,
other provisions indicate that Congress was also concerned about the
potential impacts of unregulated releases of these substitute
refrigerants. Section 608(c)(2) is in the latter category, as it
extends the venting prohibition to substitute refrigerants, unless EPA
determines that such releases do not pose a threat to the environment.
Accordingly, the application of these regulatory requirements to non-
exempt substitute refrigerants provides clarity and certainty to
owners, operators, and people servicing, maintaining, repairing, or
disposing of air conditioning and refrigeration equipment of how they
can avoid violating the venting prohibition. Such clarity and certainty
is consistent with EPA's efforts through other regulatory programs to
facilitate and encourage the use of substitute refrigerants.
Other commenters stated that Congress did not extend the
refrigerant management requirements to substitutes, likely because it
wanted to create incentives for companies to switch to safer
alternatives.
EPA responds that Congress did extend the venting prohibition to
substitute refrigerants and left to EPA's discretion how to interpret
and enforce that prohibition. While Congress did not require EPA to
interpret and enforce the venting prohibition by regulating substitute
refrigerants in the same manner as ODS, neither did it prevent EPA from
doing so.
Commenters also stated that 608(a)(3) encourages EPA to use the
regulations under that provision to promote the use of safe
alternatives. EPA responds that while section 608(a)(3) provides that
the regulations that are required under section 608(a) ``may include
requirements . . . to promote the use of safe alternatives pursuant to
section [612],'' whether to include such provisions is discretionary,
not mandatory. While Congress left such regulations to EPA's
discretion, Congress directly applied the venting prohibition to
substitute refrigerants under section 608. Moreover, the legislative
history for section 608 recognizes the distinctions between sections
612 and 608, stating: ``The fact that a particular substance has been
identified by the Administrator as a `safe substitute' for purposes of
section 612, does not affect the requirement for a separate
determination under [section 608]. The purposes of section 612 and of
this section are different and substances approved under section 612
will not automatically qualify for exclusion from the prohibition on
venting that is included in this section.'' Statement of Senate
Managers, S. 1630, The Clean Air Act Amendments of 1990, reprinted in 1
A Legislative History of the Clean Air Act Amendments of 1990, at 928
(1993). Accordingly, EPA does not interpret the discretion provided by
section 608(a)(3) to diminish its ability to interpret, explain, and
enforce section 608(c) as it is doing in this rule.
3. Comment: Section 608 Does Not Authorize EPA To Regulate the Normal
Operation of Refrigerant Equipment
Commenters stated that EPA's authority under section 608 is limited
to regulating actions taken during servicing, repair, or disposal of
refrigeration equipment, or class I and II refrigerants evacuated
during such servicing and repair. These comments further stated that
EPA's authority extends only to technicians and that nothing in section
608 would enable EPA to impose liability on the equipment owner or
operator.
With regard to the actions that are within the scope of section
608(c), as explained earlier in this notice, EPA interprets section
608(c) to convey authority to interpret, explain, and enforce the
venting prohibition for both ODS and substitute refrigerants, and that
prohibition applies to the maintenance, service, repair, or disposal of
appliances and IPR. As explained elsewhere in this rulemaking, this
action applies regulations to non-exempt substitute refrigerants that
are related to the maintenance, service, repair, or disposal of such
appliances or to providing persons engaged in such activities with
additional clarity and certainty on how to ensure that their actions
comport with the venting prohibition and the de minimis exemption to
it. For example, the technician certification provisions relate to who
can maintain, service, or repair an appliance and the evacuation and
recovery equipment provisions relate to how to maintain, service,
repair or dispose of an appliance. Furthermore, the comment omits the
concept of maintenance, which is included in section 608(c). EPA notes
that the definition of the term ``maintain'' includes ``to keep in an
existing state; preserve or retain'' and to ``keep in a condition of
good repair or efficiency.'' The American Heritage College Dictionary,
4th ed. (Houghton Mifflin, 2002), at 834; see also https://www.merriam-webster.com/dictionary/maintain (including in the definition of
maintain ``to keep in an existing state (as of repair, efficiency, or
validity): Preserve from failure or decline '')
(last accessed May 31, 2016). Thus, ``maintenance'' and ``maintaining''
include a broad range of activities involved in preserving equipment in
normal working order.
EPA noted in a prior response that section 608(c) is limited to
refrigerants while section 608(a) is not. However, the comment is
incorrect that section 608(c) is limited to the activities of a
technician. Section 608(c)(2) refers to ``any person,'' and ``person''
is defined broadly in CAA section 302, as well as in subpart F to 40
CFR part 82. More specifically, section 302(e) defines ``person'' to
``include[ ] an individual, corporation, partnership, association,
State, municipality, political subdivision of a State, and any agency,
department, or instrumentality of the United States and any officer,
agent or employee thereof.'' Thus, the definition clearly is not
limited to technicians. Furthermore, the current statement of purpose
and scope in subpart F, Sec. 82.150, lists appliance owners and
operators as one of the persons to which the subpart applies.
When EPA initially promulgated the subpart F regulations, it
explained that these rules applied to owners. For example, in the
preamble to the 1993 Rule, EPA explained that it had made ``additions
to the scope section to clarify that the rule covers refrigerant
reclaimers, appliance owners, and manufacturers of appliances and
recycling and recovery equipment in addition to persons servicing,
repairing, maintaining, and disposing of appliances.'' 58 FR 28707
(emphasis added); see also 58 FR 28681
[[Page 82292]]
(explaining that the rule required the owner of the equipment to either
authorize the repair of substantial leaks or develop the equipment
retirement/retrofit plan within 30 days of discovering leak above the
standard and that the owner has the legal obligation to ensure that
repairs are made to equipment where the leak rate exceeds the
standard).
Some comments on the proposed rule stated that section 608(c)
cannot be used to require that an equipment owner undertake repairs.
EPA disagrees with this comment. As explained above, owners are within
the scope of ``person'' as defined in CAA section 302(e) and subpart F.
An owner's failure to undertake repairs of leaky appliances or IPR
could lead directly to a violation of the venting prohibition. As one
example, if in the course of a normal maintenance check, a technician
discovers that the appliance is releasing refrigerant above the
threshold leak rate but the owner does not authorize the repairs as
required by the rules, and instead decides to add refrigerant and
continue operating the equipment, the owner would be participating in a
knowing release.
Many commenters also disagreed with EPA's interpretation of the
venting prohibition, as articulated in the proposed rule that ``when a
person adds refrigerant to an appliance that he or she knows is
leaking, without repairing the appliance consistent with the leak
repair requirements, he or she also violates the venting prohibition.''
One commenter stated that this could prohibit technicians from filling
any leaking appliance. Another commenter noted that that it appears to
cover failed repairs and verification tests during the repair period
allowed by Sec. 82.156(i)(9) and Sec. 82.157(e). Commenters requested
that EPA clarify that leaks that occur within an applicable repair
window or retrofit/retirement schedule, even though the facility may be
aware of the leak, do not violate the venting prohibition, where the
leak repair procedures prescribed in subpart F are followed. To clarify
EPA's statement in the proposed rule and to respond to these comments,
EPA's position is that while the addition of refrigerant to an
appliance known to be leaking above the threshold rate is a knowing
release, that release does not violate the venting prohibition so long
as the applicable practices referenced in Sec. 82.154(a)(2), as
revised, are complied with, including the leak repair requirements, as
applicable.
4. Addressing Concerns About Global Warming Is Not Lawful Under Title
VI of the CAA
Multiple commenters stated that EPA cannot use Title VI to control
substances based on their GWPs. These commenters referred to section
602(e), which states that EPA's required publication of the GWP of a
class I or class II substance ``shall not be construed to be the basis
of any additional regulation under this chapter.'' EPA responds that
section 602(e) relates to the GWPs of ODS, and says nothing regarding
the GWPs of substitutes. In any event, EPA is not relying on section
602 as authority for the action being taken in this rulemaking. Rather,
EPA is relying on section 608 for the substantive requirements
contained in this rule. Section 608(c) prohibits the knowing venting or
release of a substitute refrigerant unless the Administrator determines
that such venting, release, or disposal does not pose a threat to the
environment. While it is true that EPA anticipates a significant GHG
emissions reduction as a result of this rule, EPA is extending the
subpart F regulations to all substitute refrigerants that are not
exempt from the venting prohibition irrespective of their GWPs. The
GWPs of the non-exempt substitutes addressed in this rulemaking range
from 4 to over 14,000.
One commenter stated that the legislative history demonstrates that
Congress considered and rejected regulating GHGs under Title VI of the
CAA. Congress does not intend sub silento to enact statutory language
that it has earlier discarded. The commenter also noted that Congress
rejected the Senate version known as ``The Stratospheric Ozone and
Climate Protection Act.'' That version of the act sought to reduce
methane emissions in the U.S. and other countries. The removal of those
provisions signifies, in the commenter's opinion, that Congress did not
intend for Title VI to address substances that were not ozone
depleting, even if they have high GWPs.
EPA responds that while Congress chose not to include certain
potential measures regarding regulation of GHGs unrelated to ODS,
Congress nonetheless included multiple provisions regarding ODS
substitutes. The legislative history of section 608(c) indicates that
Congress specifically recognized that substitutes could pose a threat
to the environment because they could include greenhouse gases. In
discussing the venting prohibition, as it applies to substitute
refrigerants, the statement of the Senate Managers included the
following:
Effective 5 years after enactment, the prohibition on venting or
release shall also apply to all substances that are used as
refrigerants as substitutes for class I or class II refrigerants. By
its terms, this provision applies to substances that are not listed
as class I or class II substances. This is an important provision
because many of the substitutes being developed do not have ozone
depleting properties but they are `greenhouse gases' and have
radiative properties that are expected to exacerbate the problem of
global climate change. The prohibition shall apply to all such
substitute substances except where the Administrator determines that
the venting, release or disposal of a particular substitute
substance does not pose a threat to the environment.
The Administrator shall consider long term threats, such as
global warming, as well as acute threats. The fact that a particular
substance has been identified by the Administrator as a `safe
substitute' for purposes of section 612 does not affect the
requirement for a separate determination under this section. The
purposes of section 612 and of this section are different and
substances approved under section 612 will not automatically qualify
for exclusion from the prohibition on venting that is included in
this section.\16\
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\16\ Statement of Senate Managers, S. 1630, The Clean Air Act
Amendments of 1990, reprinted in 1 A Legislative History of the
Clean Air Act Amendments of 1990, at 929 (1993).
It is therefore clear that Congress understood that substitute
refrigerants could be greenhouse gases, specifically sought to apply
the venting prohibition to such gases, and specifically contemplated
that climate risks would be considered in carrying out the venting
prohibition. The removal of a provision related to methane within Title
VI does not indicate that Congress did not intend to address greenhouse
gases in the venting prohibition.
One commenter stated that EPA has not undertaken an endangerment
finding to support regulation of HFCs from IPR as a greenhouse gas
which can be regulated under the CAA. EPA responds that under section
608(c), the venting prohibition applies to substitutes unless EPA
exempts them. EPA is not required to take any affirmative action, let
alone an endangerment finding, for the venting prohibition to apply.
One commenter stated that the purpose of Title VI is to implement
the Montreal Protocol, whose sole goal is to protect the stratospheric
ozone layer from ODS. EPA responds that while certain sections of Title
VI do in fact implement the Montreal Protocol, several sections of
Title VI call on EPA to take measures that are not required by the
Montreal Protocol but are complementary to the ODS phaseout. These
sections include, in addition to
[[Page 82293]]
section 608, sections 609 (servicing of motor vehicle air
conditioners), 610 (nonessential products), 611 (labeling), and 612
(safe alternatives policy). Section 608 clearly provides EPA authority
to regulate the venting, release, and disposal of substitute
refrigerants.
5. EPA's Proposal Would Increase Risks to Human Health and Violate
Section 612
One commenter stated that the proposed rule would drive owners and
operators of IPR from HFCs to exempt substitutes in order to remove
themselves from the regulatory requirements of subpart F. The commenter
stated that some of these exempt substitutes are not safer for human
health. HFCs are non-ozone depleting, non-flammable, and non-toxic
whereas ammonia, chlorine, and hydrocarbons are either toxic or
flammable. By encouraging the use of these non-exempt but riskier
substitutes, the commenter states that EPA is violating section 612(a)
of the CAA.
EPA responds that the commenter is quoting the policy statement
that appears in section 612(a). The Agency is not acting under section
612. Rather, EPA is acting under section 608. This action under section
608 is consistent with decisions made under section 612 and does not
alter those decisions. Specifically, it does not preclude use of any
substitute listed as acceptable or acceptable subject to use
restrictions under section 612(c) for the specified end-use. Under
section 612(c), EPA compares substitutes not only to ODS but also to
other available substitutes. When reviewing substitute refrigerants,
EPA considers a variety of risks, including toxicity and flammability.
In some instances, EPA lists substitutes as acceptable subject to use
conditions that mitigate such risk. EPA does not dictate that a
particular user choose a specific substitute from among those listed as
acceptable for that end-use. Whether an owner or operator of an IPR
facility chooses to transition to an exempt substitute is a decision
that must be made weighing the advantages and disadvantages of the
specific refrigerant.
6. Section 301 and 114 Do Not Grant EPA Authority To Regulate
Substitutes
Two commenters stated that section 301 grants EPA general
rulemaking authority but does not authorize the Agency to act where a
specific statutory provision already has addressed an issue. They
further stated that section 608(a) does address the issue of whether
the refrigerant management regulations apply to substitutes and
therefore EPA cannot use section 301 to create that authority.
As discussed above, nothing in Title VI says what refrigerant
management requirements should apply to substitutes: Therefore, this is
not a situation where a specific statutory provision has already
addressed the issue. EPA is issuing regulations to interpret, explain,
and enforce the venting prohibition in section 608(c)(2) with regard to
non-exempt substitutes. EPA is not deriving substantive authority from
section 301. Rather, EPA is relying on section 608 for its substantive
authority and is looking to section 301 as supplemental authority to
issue regulations to carry out its functions under section 608.
Similarly, EPA is looking to section 114 not for the substantive
refrigerant management requirements being finalized today but rather as
authority to require recordkeeping and reporting in carrying out the
venting prohibition for non-exempt substitutes.
IV. The Revisions Finalized in This Rule
A. Revisions to the Definitions in Sec. 82.152
EPA proposed to update and clarify many of the definitions in
subpart F. EPA also proposed to add new definitions and remove
definitions that solely restated the required practice. In general,
these revisions are to improve readability, increase consistency with
how the term is used in the regulatory text, and specifically
incorporate substitute refrigerants as appropriate.
EPA received comment on the proposed revisions to definitions of
refrigerant and appliance, as well as terms specifically applicable to
the leak repair portion of the regulations. EPA also received requests
to define additional terms. Those comments, and changes from the
proposed definitions that are being made in this final rule, are
discussed later in this section with those terms. EPA is finalizing as
proposed the other revisions to definitions in this section that were
addressed in the notice of proposed rulemaking and where we did not
receive comments. Other revisions elicited only supporting comments,
which are briefly noted in the descriptions of the revisions.
Appliance
EPA proposed to define appliance as any device which contains and
uses a class I or class II substance or substitute as a refrigerant and
which is used for household or commercial purposes, including any air
conditioner, motor vehicle air conditioner, refrigerator, chiller, or
freezer. EPA is finalizing three revisions to the definition of
appliance. First, EPA is extending the subpart F regulatory definition
to apply to substitute refrigerants. Second, EPA is adding ``motor
vehicle air conditioner'' to the list of example appliances. Third, EPA
is adding a sentence stating that each independent circuit on a system
with multiple circuits is considered a separate appliance.
The prior definitions in subpart F are written to separate ozone-
depleting substances from non-ozone depleting substitutes. EPA's prior
regulations defined an appliance as a device which contains and uses a
refrigerant. As relevant here, section 601 of the CAA defines an
appliance as a ``device which contains and uses a class I or class II
substance as a refrigerant.'' Class I and class II substances are
defined as substances listed under sections 602(a) or (b),
respectively. Section 601 of the CAA does not define refrigerant but
EPA's regulations at Sec. 82.152 as they existed before this
rulemaking defined refrigerant as solely class I or class II ozone-
depleting substances, or mixtures containing a class I or class II ODS.
Defining these terms in this manner was appropriate before section
608(c)(2) took effect on November 15, 1995. Under section 608(c)(2),
the venting prohibition applies to substitutes for ODS refrigerants
and, accordingly, it states that ``[f]or purposes of this paragraph''
appliance includes any ``device which contains and uses as a
refrigerant a substitute substance and which is used for household or
commercial purposes.'' However, EPA had not updated the definition of
appliance in subpart F to reflect section 608(c)(2). Because EPA
regulations, as they existed before this rulemaking, had defined an
appliance as a device that contains and uses a refrigerant, and
refrigerant in a way that does not include substitutes, substitutes
were excluded from the regulatory definition of appliance.
In this action, EPA is revising the definition of appliance so that
it encompasses the definition of the term in both sections 601 and 608
of the CAA. EPA is defining appliance as any device which contains and
uses a class I or class II substance or substitute as a refrigerant and
which is used for household or commercial purposes. This revision makes
the regulatory definition consistent with both sections 601 and 608 of
the CAA, improves internal consistency of the regulations, and
increases clarity for the regulated community.
[[Page 82294]]
One commenter stated that EPA should not add ``substitutes'' to the
definition of appliance because CAA section 601(1) already defines
appliance and ``substitutes'' is not included. EPA responds that while
the definition of appliance in section 601(1) does not contain
``substitutes,'' section 608(c)(2) does extend the term appliance to
systems containing substitutes for purposes of that paragraph. It is
reasonable to update the regulatory definition so that there is a
consistent definition of appliance throughout subpart F. Further,
because the regulations in subpart F address the venting prohibition
under section 608(c)(2) for substitute refrigerants and requirements to
interpret, explain, and enforce the de minimis exemption to that
prohibition, it is reasonable to include ``substitutes'' in the
regulatory definition of appliance. In addition, this rulemaking only
changes the definition of appliance as it appears in subpart F, but the
definition of the term in other regulations under Title VI, such as in
40 CFR 82.3, remains unchanged.
EPA also proposed and is finalizing the addition of ``motor vehicle
air conditioner'' to the list of example appliances. Two commenters
objected to this proposal, stating that neither definition of appliance
in section 601 or 608 of the CAA specifically includes motor vehicle
air conditioners. One commenter states that Congress specifically
considered but ultimately decided against explicitly including ``motor
vehicles'' within the definition of appliance in section 601 of the
CAA.
A plain reading of the Clean Air Act would include motor vehicle
air conditioning under appliance. Section 601 of the CAA defines an
appliance as ``any device . . . which is used for household or
commercial purposes including any air conditioner . . .'' (emphasis
added). In the 1993 Rule establishing regulations under section 608 for
the first time, the Agency stated the following:
The Act defines `appliance' as `any device which contains and
uses a class I or class II substance as a refrigerant and which is
used for household or commercial purposes, including any air
conditioner, refrigerator, chiller, or freezer.' EPA interprets this
definition to include all air-conditioning and refrigeration
equipment except that designed and used exclusively for military
applications. Thus, the term includes all the sectors of air-
conditioning and refrigeration equipment described under Section
III.A above, including household refrigerators and freezers (which
may be used outside the home), other refrigerated appliances,
residential and light commercial air-conditioning, transport
refrigeration, retail food refrigeration, cold storage warehouses,
commercial comfort air-conditioning, motor vehicle air conditioners,
comfort cooling in vehicles not covered under section 609, and
industrial process refrigeration.'' (58 FR 28669; May 14, 1993,
emphasis added)
In that same final rule, EPA established the definition of MVAC in
subpart F as ``any appliance that is a motor vehicle air conditioner as
defined in 40 CFR part 82, subpart B'' (emphasis added), and that
definition has not since been changed. The commenters themselves state
that procedures that are not regulated under section 609, such as the
disposal of MVACs and the purchase of refrigerant in some sized
containers, are covered by section 608. Furthermore, they agree that
the prohibition against venting ODS and substitute refrigerants in
section 608 is also already applicable to refrigerants used in MVAC and
MVAC-like appliances. This necessarily implies that appliance as used
in section 608 includes ``motor vehicle air conditioners.'' The
inclusion of ``motor vehicle air conditioners'' as an example within
appliance is a clarification, and it reflects the way the term
appliance has been used throughout the history of the program. Specific
provisions in subpart F that relate to activities that are regulated
for MVACs under section 609 refer, as appropriate, to the subpart B
regulations issued under section 609 of the CAA.
Comments from the auto industry also expressed concern that adding
motor vehicle air conditioners to the list of examples in the
definition of appliance would affect EPA's exemption from servicing
requirements for MVACs in vehicles that have not yet left the
manufacturing facility. In the 1992 rule establishing regulations under
section 609, EPA stated that:
a motor vehicle air conditioner is not subject to these regulations
prior to the completion of final assembly of the vehicle by the
original equipment manufacturer. While repair or service work on air
conditioners in unfinished vehicles may well fit the definition of
`service for consideration,' the equipment and technician
certification requirements of these rules do not apply as the motor
vehicle air conditioner is not subject to these rules prior to the
completion of the final assembly process by the vehicle's
manufacturer. (57 FR 31246; July 14, 1992)
The addition of motor vehicle air conditioners as an example within
the definition of appliance does not affect current practices and EPA
regulations as they affect vehicle manufacturing. That was not the
intent of the proposed change and is not a result of this final action.
As previously discussed, the definition of motor vehicle air
conditioner in subpart F is ``any appliance that is a motor vehicle air
conditioner as defined in 40 CFR part 82, subpart B'' and the
definitions within subpart B, under section 609, exclude vehicles that
have not completed manufacturing by the original equipment
manufacturer. EPA provided the following explanation for the exclusion
of vehicles that have not yet been fully manufactured from the
servicing requirements under section 609 in the 1992 final rule:
EPA believes the repair of newly manufactured units is not
likely to be a common occurrence and when it does occur, the
manufacturing facilities clearly use equipment to recover and
recycle the refrigerant so that it may be reintroduced once the
motor vehicle air conditioner is repaired. The equipment is
significantly different from the kind of equipment covered by EPA's
definition of approved equipment, yet serves the purpose of such
equipment equally well. In addition, the technicians performing this
operation are typically manufacturing employees, not service
technicians. For all these reasons, the Agency believes it is not
necessary at this time to extend the requirements of this servicing
regulation into the assembly operation. . . EPA wants to be clear
that this exclusion is limited to final assembly activities
conducted by the vehicle's original manufacturer, and does not
include service or repair activities conducted, for example, by a
dealer. (57 FR 31245, July 14, 1992)
One commenter further stated that it is not necessary to impose new
technician training and certification requirements, or other regulatory
requirements, for the automobile company and component supplier
employees and contractors engaged in these activities. EPA agrees and
reiterates that because the venting prohibition already applied to ODS
and substitutes, this final action will not have any new effect on the
automotive manufacturing process or individuals employed in the
automotive and/or MVAC manufacturing process prior to the vehicle
leaving the manufacturing plant. EPA's regulations under both sections
608 and 609 are intended, and will continue, to apply only to MVACs
that are fully manufactured.
A few commenters requested that EPA clarify that for systems
containing multiple circuits, each independent circuit is considered a
separate appliance for the purposes of subpart F. This is the position
that EPA has taken in the Compliance Guidance for Industrial Process
Refrigeration Leak Repair Regulations under Section 608 of the Clean
Air Act from October 1995 and the commenters believe that making such a
statement in the regulations will be clearer to the regulated
community.
[[Page 82295]]
EPA agrees and is adding a sentence clarifying this point to the
definition.
Many commenters from the supermarket industry believe that the
Agency's interpretation of the term appliance is too broad. In these
commenters' view, appliances are display cases or unit coolers and not
the broader system of piping, compressors, and condensing units to
which those are attached. One commenter suggested that EPA create a
definition for the term system to indicate a combination of various
pieces of equipment and appliances that are professionally and
specifically designed and erected for a particular application. Another
commenter suggested that EPA define the refrigerant circuit as separate
from the appliance. These commenters are especially concerned about a
definition of appliance that includes all coolers, display cases,
components, and piping in light of EPA's proposal to require that an
appliance be retired if it exceeds the proposed two-year leak limit.
EPA responds that the Agency interprets an appliance as a fully
assembled device that can function for its intended purpose.
Components, on the other hand, are all the parts of the appliance that
make up the refrigerant circuit, as described later in this section. As
EPA described in the final rule allocating HCFCs for 2010-2014,
``appliances are separate from components, which are the individual
parts of an appliance, such as a condensing unit or line set, that by
themselves cannot function to provide a cooling effect'' (74 FR 66439;
December 15, 2009). EPA recognizes that some would prefer that some
components be considered appliances. For example, some members in the
industry consider a condensing unit in a residential split system to be
an appliance. However, EPA does not believe it is practical or clear
for some components to also be considered appliances in the regulatory
definitions. The concepts of full charge or leak rate do not make sense
in the context of only a component. Finally, EPA notes that much of
these commenters' concerns about the scope of the term appliance was in
response to EPA's proposal that chronically leaking appliances be
retired. As discussed in Section IV.F.12, EPA is not finalizing the
proposed requirement for automatic retirement of chronically leaking
appliances.
Apprentice
As proposed, EPA is amending the definition of apprentice to
replace the ``Bureau of Apprenticeship and Training'' with the ``Office
of Apprenticeship'' to match the current name of the office and to make
minor edits to improve clarity and readability.
Batch
EPA proposed a requirement that each batch of reclaimed refrigerant
be tested. EPA did not propose to define ``batch'' but is doing so in
this final rule based on requests by commenters to clarify the term.
EPA agrees with the comment that adding a definition of batch will
clarify this requirement, and is defining the term based on language
provided by multiple commenters. Therefore, EPA is defining batch to
mean a single bulk cylinder of refrigerant after all reclamation has
been completed prior to packaging or shipping to the market.
Certified Refrigerant Recovery or Recycling Equipment
As proposed, EPA is removing the defined term certified refrigerant
recovery or recycling equipment which was merely a reference to the
sections of the Code of Federal Regulations that discuss the
certification program. This term was also used inconsistently
throughout subpart F as ``recovery and recycling equipment,''
``recovery or recycling equipment,'' ``recycling and recovery
equipment,'' and ``recycling or recovery equipment.'' The regulations
at Sec. 82.36 make a distinction, in the context of MVAC servicing,
between equipment that only recovers refrigerant and equipment that
both recovers and recycles refrigerant. The regulations in subpart F
generally do not make a distinction. The standards in appendices B1 and
B2 refer to recovery and/or recycling equipment while the standard in
appendix C for small appliances refers to recovery equipment only. For
consistency, in the revised provisions, EPA is using ``recovery and/or
recycling equipment'' throughout, except for when referring only to
small appliances.
Class I and Class II
EPA is finalizing as proposed regulatory definitions for class I
and class II ozone-depleting substances to assist the reader. These
terms are currently defined in section 601 of the CAA and in 40 CFR
part 82, subpart A. EPA is finalizing the addition of a definition of
class I as an ozone-depleting substance that is listed in 40 CFR part
82, subpart A, appendix A. Similarly, EPA is finalizing the addition of
a definition of class II as an ozone-depleting substance that is listed
in 40 CFR part 82, subpart A, appendix B. EPA also notes that the
regulatory text uses class I substance, class I ODS, and class I
refrigerant interchangeably (and similarly uses class II substance,
class II ODS, and class II refrigerant interchangeably) and all are
intended to have the same meaning for the purpose of subpart F.
Comfort Cooling
EPA is finalizing the addition of a definition for comfort cooling.
The leak repair provisions divide refrigeration and air-conditioning
equipment into four categories: Comfort cooling, commercial
refrigeration, industrial process refrigeration, and other. EPA's prior
regulations defined commercial refrigeration and industrial process
refrigeration but not comfort cooling.
For purposes of the leak repair requirements, EPA proposed to
define comfort cooling as the air-conditioning appliances used to
provide cooling in order to control heat and/or humidity in facilities
including but not limited to office buildings and light commercial
buildings. EPA further proposed to include language explaining that
comfort cooling appliances include building chillers and roof-top self-
contained units, and may be used for the comfort of occupants or for
climate control to protect equipment within a facility, such as but not
limited to computer rooms. EPA sought comments on the applicability of
the proposed definition of comfort cooling to air-conditioning
equipment that is typically used to provide cooling and or humidity
control in such environments.
Commenters suggested that EPA remove the reference to equipment and
computer rooms as this is beyond the scope of comfort cooling. One
commenter suggested that comfort cooling only include computer rooms
set to above 68 degrees F to align the definition with CARB-32. That
commenter also suggested that appliances used to cool computer rooms
would fall under the category of ``other appliances.'' Another
commenter believes that such appliances are currently considered as
IPR. EPA responds that the intent was to apply the term comfort cooling
only to spaces occupied by humans. EPA has made edits to better reflect
this understanding in the final definition and is therefore not
including in the final definition the last sentence from the proposed
definition (which read ``[t]hey may be used for the comfort of
occupants or for climate control to protect equipment within a
facility, including but not limited to computer rooms.'').
EPA notes here that comfort cooling, with respect to the leak
repair provisions in this subpart, does not include MVACs or MVAC-like
appliances.
[[Page 82296]]
Commercial Refrigeration
As proposed, EPA is finalizing the amendment to the definition of
commercial refrigeration that removed the sentence stating that this
equipment typically contains a charge size over 75 pounds. While
accurate, this sentence has caused confusion as to whether or not the
leak repair requirements are applicable to such appliances with a full
charge between 50 pounds, as stated in the leak repair required
practices, and 75 pounds. The leak repair requirements do apply because
the threshold is a refrigerant charge of 50 pounds or greater. EPA is
removing this sentence to avoid this confusion. EPA received comments
in support of this revision.
Critical Component/Component
As proposed, EPA is removing the defined term critical component
and adding the term component. The term critical component was only
used in the context of an extension for the repair of IPR when critical
components could not be delivered within the necessary time. EPA is
amending the definition so that it is not limited to IPR, but also
includes comfort cooling and commercial refrigeration appliances. As
discussed in Section IV.F of this notice, EPA is applying the
extensions for leak repairs to all types of appliances. The
unavailability of a component is not unique to IPR and EPA is granting
all appliances the same flexibility to request additional time. This
revision to the regulatory definitions supports that flexibility.
EPA proposed to define component as ``a part of the refrigerant
loop within an appliance including, but not limited to, compressors,
condensers, evaporators, receivers, and all of its connections and
subassemblies.'' Component is intended to be broader than critical
component. EPA considers components to include all the parts of the
appliance that make up the refrigerant circuit such as the compressor,
heat exchangers (condenser and evaporator), and valves (e.g., heat
recovery, expansion, charging). Other components may include receivers,
manifolds, filter driers, and refrigerant piping. EPA is finalizing
this definition substantially as proposed, although it is replacing the
word ``loop'' with ``circuit,'' as refrigerant circuit is a defined
term in the regulations.
Custom-Built
As proposed, EPA is amending the definition of custom-built to
remove a citation to a section of the regulation that has moved.
Disposal
EPA proposed to amend the definition of disposal to clarify that
the disposal process includes the destruction of an appliance that
releases or would release refrigerant to the environment. This proposed
revision is intended to cover activities such as vandalism or the
cutting of refrigerant lines, whether to steal metal or to vent the
refrigerant or both. EPA also proposed to clarify that the disassembly
of an appliance for recycling, as well as reuse, is part of the
disposal process.
One commenter stated that the regulatory definition of disposal is
inconsistent with EPA's Sustainable Materials Management policy and
with the RCRA definition of disposal at 40 CFR 260.10, which leads to
regulatory confusion. The commenter seeks to clarify that the recycling
of appliances or components is separate from disposal. The commenter
believes there should be four definitions regarding recycling and
disposal: (1) Recycle refrigerant; (2) dispose of refrigerant; (3)
recycle an appliance; and (4) dispose of an appliance. The commenter
finds that the proposed revision to the definition confuses the
distinction between recycling and disposal. The commenter also finds
that the word ``destruction'' is too broad if EPA is trying to address
vandalism, line-cutting, or theft and is concerned that the term
equates recycling with such unlawful activities.
EPA responds that the Agency addresses the recycling and disposal
(or reclamation) of refrigerant elsewhere in subpart F. The safe
disposal provisions at Sec. 82.155 relate to the disposal of
appliances. The Clean Air Act in 608(a) refers to the ``service,
repair, and disposal of appliances'' and 608(c) refers to the
``maintaining, servicing, repairing, or disposing of an appliance''
(emphases added). The manner in which the appliance is disposed of,
whether by recycling, landfilling, reuse of component parts, or another
method is not addressed by the CAA. For the purposes of section 608,
what is relevant is that an action is taken on an appliance at the end
of its useful life that releases or would release refrigerant if the
proper precautions are not taken. EPA agrees it is appropriate to
specify what is included in disposal for clarity but does not agree
that the term must have the same meaning in section 608 of the CAA as
under RCRA or the Sustainable Materials Management policy. The
commenter does not make clear how the Agency's Sustainable Materials
Management policy is in conflict with the requirement in subpart F to
recover, or verify the prior recovery, of refrigerant in discarded
appliances. EPA is finalizing its proposal to include recycling for
scrap as one of the methods by which an appliance may be disposed.
Furthermore, EPA's intent is to address the various actions taken
upon an existing and operational system that will effectively end its
useful life and potentially release refrigerant. Both recycling and
vandalizing a fully charged appliance would have that effect, though
EPA recognizes the distinctions between those two actions. This
revision is also consistent with a recent court decision-which found
that cutting a functioning condenser unit and releasing refrigerant
into the environment constituted disposal of an appliance within the
meaning of CAA section 608 and its implementing regulations, even if
the underlying intent was to steal and sell the metal piping. United
States v. Harrold, No. 2:15-mj-605 (S.D. Ohio, Oct. 28, 2015) (order
concluding that the complaint sufficiently charged a violation of the
Act and that sufficient evidence was presented to establish probable
cause that defendant violated the Act).\17\ See also United States v.
Morrissette, 579 F. App'x 916, 919 (11th Cir. 2014) (stating that
defendant who stole metal coils from commercial air conditioning units
had violated the CAA regardless of the underlying intent to steal
copper). EPA is finalizing the definition of disposal substantially as
proposed. In response to the comment, EPA is replacing the word
``destruction'' with ``vandalism'' to more specifically refer to
actions such as line cutting and metal theft. The vandalism would have
to be of such a nature that it would release the refrigerant. EPA is
also separating ``[t]he recycling of any appliance for scrap'' from
``[t]he disassembly of any appliance for reuse of its component
parts.'' Both are considered disposal.
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\17\ A copy of this opinion and other documents related to this
case are available in the docket for this rulemaking.
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Follow-Up Verification Test
EPA is amending the definition of follow-up verification test to
remove duplicative text that was also covered in Sec. 82.156(i). The
revised definition describes what the test is and how it is conducted,
not the regulatory requirements of the test. The revised regulatory
requirements are found in Sec. 82.157(e). EPA is not specifying one
test that would satisfy what constitutes a follow-up verification test,
but is providing an illustrative list of tests that would qualify. EPA
does not intend for this list to be all-inclusive, but rather to
[[Page 82297]]
provide examples of known methodologies of performing leak repair
verification tests.
One commenter suggested that EPA modify the name of this test to
follow-up leak repair verification test. The commenter has found that
over 40 percent of technicians who do not work on IPR, where these
tests were previously required, were confused about the distinction
between the initial and follow-up verification tests. The technicians
indicated to the commenter that such a name change would make it
clearer that the tests are about the effectiveness of the repair. EPA
disagrees that changing the name of the test will improve technician's
abilities to conduct these tests or reduce refrigerant emissions. It is
understandable that technicians that do not work on IPR equipment and
are not trained in the procedures of subpart F that had previously only
applied to IPR would not be aware of the requirements. EPA is concerned
that changing the name of the test would confuse those who already know
of the requirement. EPA is therefore finalizing the definition of
follow-up verification test as proposed.
Full Charge and Seasonal Variance
EPA is amending the definition of full charge to account for
seasonal variances and to make minor edits for readability. Owners or
operators of commercial refrigeration appliances and IPR have
previously expressed concerns that the full charge may not be
accurately determined due to seasonal variances that may alter the
amount of refrigerant in an appliance. Seasonal variances in ambient
temperature and pressure have the effect of forcing refrigerant to
different appliance components (for example, from an appliance's
receiver to the condenser).
EPA is allowing owners or operators to account for seasonal
variances by measuring the actual amount of refrigerant added to or
evacuated from the appliance. EPA is defining full charge as the amount
of refrigerant required for normal operating characteristics and
conditions of the appliance as determined by using one or a combination
of the following four methods:
(1) Use of the equipment manufacturer's determination of the full
charge;
(2) Use of appropriate calculations based on component sizes,
density of refrigerant, volume of piping, and other relevant
considerations;
(3) Use of actual measurements of the amount of refrigerant added
to or evacuated from the appliance, including for seasonal variances;
and/or
(4) Use of an established range based on the best available data
regarding the normal operating characteristics and conditions for the
appliance, where the midpoint of the range will serve as the full
charge.
To further explain the definition of full charge, EPA is creating a
defined term for seasonal variance. This term means the removal of
refrigerant from an appliance due to a change in ambient conditions
caused by a change in season, followed by the subsequent addition of an
amount that is less than or equal to the amount of refrigerant removed
in the prior change in season, where both the removal and addition of
refrigerant occurs within one consecutive 12-month period. A complete
discussion of allowing for seasonal variances when calculating
appliance leak rates is found in Section IV.F of this preamble.
EPA received several comments on the proposed definition of
seasonal variance. Two commenters recommended that EPA use the removal
of refrigerant as the first step and the addition of refrigerant as the
second step. While EPA proposed the opposite framing, you can measure
the amount removed to be able to determine the amount that can be added
in the next season without triggering a leak rate calculation. EPA has
adjusted the definition and the narrative in the preamble accordingly.
Four commenters suggested that the amount added and removed does
not always have to be equal, as was proposed. EPA agrees that as long
as the amount added is less than or equal to the amount removed in the
prior season, the addition will be considered a seasonal variance.
One commenter requested that EPA clarify whether the added
refrigerant amount is to be included in the full charge amount. The
commenter is concerned that not reflecting the seasonal variance could
affect what is considered normal operating characteristics and
conditions, which would in turn affect when verification tests can be
conducted. Another commenter proposed that the maximum charge be used
at all times when calculating the leak rate, regardless of what is
actually in the appliance at the time of repair.
Given the concerns raised by the commenter about including seasonal
variances in the appliance's full charge to prevent problems with
compliance with normal operating characteristics and conditions, the
full charge must be adjusted to account for the amount of refrigerant
removed or added for a seasonal variance if the full charge was
calculated using any method other than method four, since that method
inherently includes a range. To be clear, verification tests should be
conducted regardless of whether the appliance contains extra
refrigerant to account for a seasonal variance. This could result in
two ``full charges,'' one for each season. EPA does not agree that it
would be appropriate to use the maximum charge or the higher of the two
full charge calculations because some seasonal variances are large
enough that adjusting the full charge would make significant difference
in the leaks that would exceed the applicable leak rate. Since this is
an added flexibility, requiring slightly more recordkeeping is
warranted.
One commenter indicated that refrigerant charge should never be
added or removed throughout the year. While this may be true for some
types of equipment, there are legitimate situations where such
additions or removals are appropriate, typically in larger commercial
refrigeration and industrial process refrigeration appliances. For
example, one commenter cited the instance of a seafood packer who may
need to add refrigerant during crab season when the refrigeration or
freezing load spikes.
Finally, the Agency is allowing an owner or operator to choose a
combination of methods to determine full charge. There are instances
where multiple methods may be necessary to accurately determine the
full charge. Further EPA is providing flexibility by not requiring that
owners or operators commit to the same method for the life of the
appliance. EPA is requiring in this final rule that owners or operators
maintain a written record of the full charge, the method(s) used to
determine the full charge, and any changes to that amount.
High-Pressure Appliance
EPA is amending the definition of high-pressure appliance as
proposed to update the list of example refrigerants with the most
commonly used refrigerants today. Because revisions to appliance and
refrigerant carry over into this term as well, under the revisions
finalized in this rule, high-pressure appliances include those that use
ODS and non-ODS substitute refrigerants.
Industrial Process Refrigeration
EPA is amending the definition of industrial process refrigeration
as proposed to make minor clarifications for readability and to remove
a citation
[[Page 82298]]
to a section of the regulation that has moved.
Industrial Process Shutdown
EPA is amending the definition of industrial process shutdown as
proposed to remove a citation to a section of the regulation that has
moved.
Initial Verification Test
EPA is amending the definition of initial verification test to
remove duplicative text that is also covered in the required practices
section of the regulation. The revised definition describes in general
terms what the test is, not what the requirements of the test are. The
purpose of this test is to verify that a leak has been repaired prior
to adding refrigerant back into the system. The requirements for an
initial leak repair verification test are described in Section IV.F.8
of this notice and in Sec. 82.157(e)(1) of the revised regulation.
Leak Inspection
EPA is creating a new defined term leak inspection. EPA proposed to
define leak inspection as the examination of appliances using a
calibrated leak detection device, a bubble test, or visual inspection
for oil residue in order to determine the presence and location of
refrigerant leaks.
Some commenters recommended additional leak detection methods
including: Standing pressure/vacuum decay tests, ultrasonic tests,
periodic evacuations, gas-imaging cameras, sight glass checks, viewing
receiver levels, pressure checks, charging charts, and the sub-cooling
method (for expansion systems).
In general, leak detection methods fall into two categories: Ones
that indicate that an appliance is leaking; and ones that can identify
the location of a leak. EPA stated in the proposal that the proposed
definition covers the techniques currently used to detect the location
of leaks, not activities that would assist only in determining whether
a system is leaking generally without providing information that would
allow detection of the location of the leak. One commenter stated that
limiting leak inspections in such a manner increases the costs of
conducting leak inspections.
EPA responds that the purpose of a leak inspection is to determine
the location of a leak, not to determine whether an appliance is
leaking. As discussed in Section IV.F.4 of this notice, EPA is
modifying the leak inspection requirement so that it is only required
on appliances that have exceeded the applicable leak rate. To repair a
leak, the technician must be able to locate it. Therefore, inspection
methods that only indicate that the appliance is releasing refrigerant
do not provide the necessary information for a technician to repair
leaks. Further leak inspections on the repaired system may benefit from
using a combination of methods to determine whether the system
continues to leak refrigerant, and if so, where.
Commenters also recommended that EPA remove some of the proposed
inspection methods. Multiple commenters recommended that EPA not
include a visual inspection for oil residue, as that is not a reliable
indicator of a refrigerant leak. Similarly, some commenters noted that
the bubble test should be used in conjunction with another leak
detection method due to its low sensitivity or potential unreliability
when performed outdoors. EPA agrees that a visual inspection for oil
residue is not dispositive and has removed that method from the list of
leak inspection methods included in the definition as finalized. EPA is
including bubble tests in that list because it may be appropriate in
some circumstances. EPA is also strengthening the leak inspection by
requiring under Sec. 82.157(g)(2) that it be performed by a certified
technician, while providing discretion for the technician to determine
which methods are appropriate.
Some commenters also recommended that EPA remove the word
``calibrated'' because some electronic leak detectors are self-
calibrating while others do not require calibration. Instead, these
commenters suggested that EPA require that the devices be operated and
maintained according to manufacturer guidelines. Another commenter
recommended that EPA maintain the requirement that leak detection
devices be calibrated. Given the variability of equipment, EPA agrees
with the comments suggesting that it is preferable to follow the
manufacturer guidelines. Thus, in this final definition EPA is
replacing ``calibrated leak detection device'' with ``leak detection
device operated and maintained according to manufacturer guidelines''
based on public comment.
In this final rule, EPA is providing a non-exhaustive list of
methods for leak inspections, and clarifying that techniques that only
determine whether the appliance is leaking must be used in combination
with another method that can identify the location of the leak. In
general, commenters encouraged EPA to allow for or require multiple
methods due to the limitations of individual techniques in different
circumstances. This approach is consistent with those comments.
Leak Rate
EPA proposed, and is now finalizing, one substantive change to the
definition of leak rate to change the calculation performed under what
is called Method 2 under the prior rules. The first step of that method
has been to take the sum of the quantity of refrigerant added to the
appliance over the previous 365-day period (or over the period that has
passed since leaks in the appliance were last repaired, if that period
is less than one year). Instead of the cut-off being since the last
repair (if less than 365 days), EPA is amending Step 1 to cover the
period of time since the last successful follow-up verification test
showing that all identified leaks were successfully repaired (if less
than 365 days have passed since the last refrigerant addition). The
goal of this change is to improve the clarity of the requirements.
Under the prior definition, it was unclear if the repair had to be
successful in order to be considered in the leak rate calculation.
These revisions clarify that all identified leaks must be verified as
having been successfully repaired.
EPA is also renaming the two methods from Method 1 and Method 2 to
``Annualizing Method'' and ``Rolling Average Method'' to improve
readability. EPA is also finalizing the proposed change to clarify that
while the same leak rate calculation must be used for all appliances at
the same facility, this only refers to the appliances subject to the
leak repair provisions (i.e., appliances normally containing 50 or more
pounds of refrigerant).
EPA received three comments on this proposed definition. One
commenter recommended that EPA remove the Rolling Average Method for
simplicity and change the Annualizing Method such that the calculation
is based on the time since the last successful follow-up verification
test instead of the last refrigerant addition. The commenter further
recommended changes to the Rolling Average Method, if EPA keeps it in
the regulation, to better express the amount of refrigerant that would
be lost if that leak continued for a full year.
EPA responds that while reducing the number of leak rate
calculation methods could simplify the regulations, numerous appliance
owners and operators have used the Rolling Average method for years and
they continue to seek flexibility. EPA does not see an environmental
benefit in reducing this flexibility. On the suggestions to change the
Annualizing and Rolling Average Methods, EPA is not adopting the
suggestions. Broadly speaking, EPA
[[Page 82299]]
interprets the comment to indicate that the Rolling Average Method
should be more like the Annualizing Method and vice versa such that
they are effectively identical. This seems unnecessary and confusing,
and limits flexibility. Both methods have strengths that would be
undercut by the suggested changes.
The strength of the Annualizing Method is that it is future-
oriented. It allows an owner or operator to ``close out'' each leak
event so long as the requirements are followed and does not lump past
leak events with the current leak event. It considers the amount of
time since the last refrigerant addition and then scales that up to
provide a leak rate that projects the amount lost over a whole year if
not fixed. As a result, this formula will yield a higher leak rate for
smaller leaks if the amount of time since the last repair was shorter.
This can have significant environmental benefits by requiring more
thorough leak inspections and verified repairs sooner. The commenter's
suggested change would make this method too similar to the Rolling
Average Method for minimal, if any, benefit and could potentially
increase the amount of time included in each leak rate calculation.
Stretching out the period of time covered could result in lower leak
rates depending on the situation.
The Rolling Average Method also has its strengths. It accounts for
all refrigerant additions over the past 365 days or since the last
successful follow-up verification test showing that all identified
leaks were successfully repaired (if less than 365 days). If an owner
or operator verifies all identified leaks are repaired, this method
would also allow an owner or operator to ``close out'' a leak event. If
there is no follow-up verification test showing that all identified
leaks were successfully repaired within the last year, the leak rate
would be based completely on actual leaks in the past year. This
retrospective approach measures actual performance and if leaks are
identified and fixed quickly, an appliance may never reach the
applicable leak rate.
Two other commenters questioned the rationale for the change given
the need to update tracking software and provide staff training. EPA
explained its rationale in the proposed rule and earlier in this
notice. Specifically, the change is needed to provide clarity that
repairs must be successful and verified in order to be considered in
the calculation and to improve effectiveness of the rule.
In this action, EPA is requiring that owners or operators use a
prospective approach (the Annualizing Method), that focuses on the
current leak event rather than the size of past leaks, or a
retrospective approach (the Rolling Average Method), where past
performance is key. If an owner or operator repairs all identified
leaks and verifies that the repairs have been successful, then the
Agency considers that a sufficient clearing event in that the leak rate
has been brought as close to zero as possible. We recognize that these
changes may require modification to software and technician training
with the new requirements. For that reason, EPA intends to develop
several compliance assistance tools that will help technicians and
owners/operators to better understand the requirements. EPA has also
delayed the compliance date for the appliance maintenance and leak
repair requirements to January 1, 2019, to allow time for the industry
to prepare for these changes.
Low-Pressure Appliance
EPA is amending the definition of low-pressure appliance to update
the list of example refrigerants with the most commonly used
refrigerants today. Because revisions to appliance and refrigerant
carry over into this term as well, under the revisions finalized in
this action, low-pressure appliances include those that use ODS and
non-ODS substitute refrigerants. EPA is finalizing this definition as
proposed.
Medium-Pressure Appliance
EPA is amending the definition of medium-pressure appliance to
update the list of example refrigerants with the most commonly used
refrigerants today. Because revisions to appliance and refrigerant
carry over into this term as well, under the revisions finalized in
this action, medium-pressure appliances include those that use ODS and
non-ODS substitute refrigerants. EPA is finalizing this definition as
proposed.
Mothball
EPA proposed to revise the defined term system mothballing to
mothball to reflect how it is used in the regulations, and EPA is
finalizing this definition as proposed. Mothballing an appliance
suspends the time needed to complete repairs, retrofit or retirement
plans, or the actual retrofit or retirement of appliances that have
triggered the leak repair requirements. The previous definition
referred to refrigeration appliances, but the suspension is allowed for
comfort cooling appliances as well as commercial refrigeration and IPR
systems. EPA is therefore removing the reference to ``refrigeration''
appliances in the definition. The previous definition also required
that the appliance be shut down for ``an extended period of time.'' EPA
is removing this phrase because the Agency is not concerned about
length of time that the system is shut down but rather that the system
has been removed from service temporarily, as opposed to permanently,
and that the refrigerant has been evacuated. The revised definition
also notes that refrigerant can be evacuated from an isolated component
of the appliance if only an isolated section or component is affected
and makes minor edits to improve clarity and readability. EPA is also
clarifying in Sec. 82.157(d)(3) and Sec. 82.157(i) that the
suspension of time ends when refrigerant is added back into the
appliance.
One commenter recommended that EPA allow the system to be filled
with nitrogen or another inert gas to protect the system while repair
is in process. EPA responds that the regulations in subpart F do not
prohibit or address this action, as long as the holding charge is an
inert gas and not a refrigerant as defined in this subpart. However,
EPA is not making revisions to address this point specifically, as the
regulations in subpart F are concerned with refrigerants and the
nitrogen or other inert gas in this example is not being used as a
refrigerant.
Normal Operating Characteristics and Conditions
As proposed, EPA is changing the defined term normal operating
characteristics or conditions by replacing ``or'' with ``and'' for
consistency through the regulations and to accurately describe the
intended state of the appliance to which this term refers. EPA is also
removing a reference to a section of the regulation that has moved and
adding a reference to the appliance's full charge. Operating at full
charge is a necessary element of an appliance's normal characteristics
and it should be reflected in the definition. Finally, the revised
definition clarifies that this term applies to all appliances, not just
refrigeration appliances.
Normally Containing a Quantity of Refrigerant
As proposed, EPA is removing the defined term normally containing a
quantity of refrigerant. Because EPA is replacing this term with the
phrase ``with a full charge of'' in the regulatory text where the term
occurred, this definition is no longer needed.
One-Time Expansion Device
EPA is amending the definition of one-time expansion device as
proposed to clarify that this includes devices that can store multiple
charges, which are
[[Page 82300]]
released individually to the environment to provide a cooling effect.
Opening an Appliance
EPA proposed to amend the definition of opening an appliance to
improve readability. EPA is finalizing this amended definition as
proposed.
Reclaim
As proposed, EPA is changing the defined term reclaim refrigerant
to reclaim so as to match usage in the regulatory text and to update
the Air Conditioning, Refrigeration, and Heating Institute (AHRI)
standard referenced in the definition. Because revisions to refrigerant
carry over into the definition for this term, it is appropriate to use
the updated AHRI standard which also includes non-ODS substitute
refrigerants.
Recover
As proposed, EPA is changing the defined term recover refrigerant
to recover so as to match usage elsewhere in the regulatory text.
Recycle
In the context of recycling refrigerant, EPA is finalizing
revisions to the defined term recycle refrigerant to recycle so as to
match usage elsewhere in the regulatory text. The revised term also
clarifies that reuse of recycled refrigerant must occur in equipment of
the same owner. This revision facilitates consistency with the
prohibition in Sec. 82.154(g) of the existing rules on the sale of
used refrigerant unless it has either been reclaimed or is being
transferred to an appliance owned by the same parent company or by the
same federal agency or department. EPA is finalizing this definition
substantially as proposed.
Refrigerant
EPA is amending the definition of refrigerant, for the purposes of
subpart F, to include both ODS and substitutes that are used for heat
transfer purposes and provides a cooling effect. This amended
definition is closer to how the term is commonly understood, based on
its functional properties. From an engineering standpoint, it is
irrelevant whether or not a compound is an ODS to function as a
refrigerant. Broadening the term also brings another term in subpart F
that contains this term, refrigerant circuit, more in line with common
usage.
One commenter stated that EPA does not have authority to regulate
substitutes to the same extent as class I and class II ODS and thus the
Agency is prohibited from redefining refrigerant to include
substitutes. EPA is revising the definition of refrigerant under
subpart F for purposes of interpreting, explaining, and enforcing the
venting prohibition, which applies to substitute refrigerants as well
as to ODS refrigerants. EPA is not revising the definition of
refrigerant for other subparts under part 82. EPA addresses comments
about its authority for this action in Section III of this notice.
Retire
EPA is creating a defined term retire. EPA proposed retire to mean,
in reference to appliances, the disassembly of the entire appliance
including its major components, such that the appliance as a whole
cannot be used by any person in the future.
One commenter recommended that retire not include the phrase ``such
that the retired appliance as a whole cannot be used by any person in
the future.'' The commenter is concerned that this could prevent the
reuse of certain equipment parts. Furthermore, the owner/operator has
no means to determine the ultimate fate of the retired appliance or
components. Another commenter stated that the requirement to render the
appliance unfit for use by the current or future owner is unnecessary
because retired appliances typically use an older refrigerant and are
not economical to purchase. Requiring that the owner do something to
render the unit unfit for use would impose an unnecessary burden. EPA
responds that the term retire concerns the continued use of that
appliance as a whole. All of the working components of a retired
appliance could be disassembled and resold to be used in multiple other
appliances because the original appliance, as a whole, is no longer
operating.
Another commenter stated that appliances may be retired without
being completely disassembled. This comment stated that often,
especially for IPR, appliances can be abandoned in place for a
considerable length of time; so long as an appliance is made inoperable
and permanently shut down it should be considered retired. This
commenter provided recommended language which accurately describes the
necessary state of the appliance ``rendered unusable'' and notes that
any remaining refrigerant would be recovered from the appliance. EPA is
finalizing the definition of retire that largely matches the definition
suggested by this commenter because it more accurately describes the
intent of what the Agency proposed.
As discussed in the proposed rule, retirement differs from
mothballing, as defined at Sec. 82.152, because a mothballed appliance
is simply evacuated and shut down until it is ready to be used once
again, whereas retirement involves a permanent shutdown of an
appliance. Retirement should also not be confused with a repair. Repair
is not expressly defined in the subpart F regulations. Repair may
include the removal of a faulty component, but such removal does not
mean that the appliance as a whole has been removed from service and
rendered unfit for further use. Throughout this rule, ``replacement''
or ``replace'' may be used when discussing a situation where an
existing appliance is retired and replaced with another appliance. In
some instances, however, the owner or operator may choose to only
retire and not replace an appliance so the two terms are not always
used together.
Retrofit
EPA is creating a defined term retrofit. Many appliance owners or
operators have incorrectly equated retrofit with repair and EPA
received one comment on the proposed rule requesting additional
examples of activities and refrigerant conversions that would qualify
as a retrofit.
EPA is finalizing this definition as proposed. EPA uses retrofit to
refer to a change to the appliance in order to convert it to the use of
a different refrigerant. In response to the comment requesting the
addition of examples of activities or refrigerant conversions, EPA
concludes that it is not necessary to include additional examples of
activities in the definition. Further, EPA is not specifying the type
of refrigerants that are being converted, though typically retrofits
have involved the replacement of an ODS with a non-ozone depleting
substitute. Retrofits often require changes to the appliance (for
example, change in lubricants, filter driers, gaskets, o-rings, and in
some cases, components) in order to acquire system compatibility.
Sometimes very few or no changes to the appliance are necessary to
convert from one refrigerant to another. That would still be a retrofit
because the refrigerant has changed.
Retrofit does not apply to upgrades or repairs to existing
equipment where the refrigerant is not changed. EPA generally considers
a repair to include an action that addresses the leaking appliance or
the affected component(s) of the leaking appliance. Repairs may include
replacement of components or component subassemblies but changing the
refrigerant would make the action a retrofit.
[[Page 82301]]
Self-Sealing Valve
EPA is finalizing its proposal to create a defined term self-
sealing valve. Under this definition, self-sealing valve is a valve
affixed to a container of refrigerant that automatically seals when not
actively dispensing refrigerant and that meets or exceeds established
performance criteria as identified in Sec. 82.154(c)(2). The purpose
of a self-sealing valve is to prevent or minimize inadvertent release
of refrigerant to the environment during the use and storage of the
container of refrigerant. The requirement for self-sealing valves for
small cans of MVAC refrigerant is discussed in more detail in Section
IV.C.
Small Appliance
EPA is finalizing proposed amendments to the definition of small
appliance to remove the reference to class I and class II refrigerants.
Because revisions to appliance and refrigerant carry over into this
term as well, under the revisions finalized in this rulemaking small
appliances include those that use ODS and non-ODS substitute
refrigerants. EPA is also adding portable air conditioners to the list
of example small appliances.
One commenter requested that EPA specifically exclude MVACs and
MVAC-like appliances from this definition. The commenter believes that
without such an exclusion those types of appliances would be included
in the revised definition of small appliance, which it characterizes as
including any appliance charged with five pounds or less of
refrigerant, and be subject to regulations that apply to small
appliances. EPA responds that MVACs and MVAC-like appliances are not
small appliances even though the charge sizes may be similar. Small
appliances must be hermetically sealed, which MVACs and MVAC-like
appliances are not.
Another commenter noted that EPA has specifically granted an
exemption for the manufacture of small appliances in subpart B and
urged EPA to preserve that exclusion in subpart F for MVACs. The
commenter points to the definition of motor vehicle in subpart B. EPA
responds that the definition of motor vehicle air conditioner in
subpart F is simply a reference to subpart B. Thus, the use of MVAC in
subpart F has the meaning granted to it in subpart B and this rule does
not remove the exclusion granted for the assembly of MVACs in subpart
B. EPA disagrees that it is necessary to clarify this point by amending
the definition of appliance, which is a broader category, nor is it
appropriate to amend the definition of small appliance in the manner in
which the commenter recommends. See discussion under the definition of
appliance for additional information.
Substitute
EPA is finalizing proposed amendments to the definition of
substitute to remove the phrases ``EPA-approved'' and ``in a given
refrigeration or air-conditioning end-use.'' These phrases are
references to the SNAP program, which identifies acceptable
alternatives to ODS for specific end-uses. The Agency has changed the
status of certain refrigerants from acceptable to unacceptable for new
retail food refrigeration equipment, vending machines, and motor
vehicle air conditioning (80 FR 42870; July 20, 2015). EPA has also
recently proposed to make additional changes (81 FR 22810; April 18,
2016). EPA does not mean to imply that finding a refrigerant to be
unacceptable in a given end-use under SNAP means that it is no longer
included within substitute, and thus by extension refrigerant. Were
that the case, those substances would be exempted from the safe
handling requirements of subpart F, or even the venting prohibition,
despite still being used as refrigerants. EPA intends for those
substances to continue to be subject to those requirements where they
are being used as refrigerants. Accordingly, EPA is finalizing this
revision to prevent that confusion, especially since the Agency allows
for the servicing of existing appliances designed to use refrigerants
that the Agency recently listed as unacceptable in new (and in some
cases) retrofitted appliances.
Under the revised definition, any chemical or product, whether
existing or new, that is used by any person as a replacement
refrigerant for a class I or II ozone-depleting substance would be
considered a substitute, even if it has been recently listed as
unacceptable under SNAP in some end-uses or has not been submitted to
or reviewed by the SNAP program. One commenter stated that by limiting
the definition of substitute to replacements for ODS, EPA could be
unintentionally permitting new replacements to HFCs, as opposed to ODS,
to be beyond the scope of subpart F. Another commenter suggested that
the term be limited to the SNAP-approved list of substitutes but
provided no reasons for such a limitation.
EPA responds that in 2004, the Agency affirmed an inclusive view of
the scope of substitutes under subpart F. In that rule, it stated:
Under section 608, EPA considers a SNAP-approved refrigerant a
`substitute' for CFC or HCFC refrigerants under section 608 if any
of the following is the case: (1) The substitute refrigerant
immediately replaced a CFC or HCFC in a specific instance, (2) the
substitute refrigerant replaced another substitute that replaced a
CFC or HCFC in a specific instance (i.e., it was a second-or later-
generation substitute), or (3) the substitute refrigerant has always
been used in a particular instance, but other users in that end-use
have used it to replace a CFC or HCFC. (March 12, 2004; 69 FR 11958)
EPA continues to hold this interpretation, except that for the reasons
discussed above, EPA no longer maintains the position that substitutes
must be approved under SNAP in order to be considered a refrigerant
under section 608 when the substance is used as a refrigerant. In
addition, the phrase ``any chemical or product, whether existing or
new'' makes clear that the term is to be applied broadly, even to
compounds that do not yet exist or have not yet been developed.
Other commenters recommended that EPA explicitly state the types of
refrigerants that are considered substitutes. The proposal stated that
EPA intends to apply the requirements in subpart F to all substances
that are functionally refrigerants, including but not limited to HFCs,
PFCs, HFOs, hydrofluoroethers, and hydrocarbons, as long as those
substances have not been exempted from the venting prohibition. To the
extent these comments are suggesting that EPA should provide some
examples as a non-exhaustive list in the definition, EPA agrees that
this increases clarity and EPA has added a non-exhaustive list of
examples of substances that would be included in this definition, as
well as clarifying that blends of such substances are also included.
This approach also matches other definitions in subpart F that have
similar lists of examples. To the extent the commenters are suggesting
that EPA establish an exhaustive list of substances that would qualify
as substitutes, EPA does not agree such a list is needed or would be
feasible to include. Including such a list would also be unadvisable
given the continued development of new substitutes. Therefore, the
definition provides an illustrative list of substances that are
included.
To provide clarity, EPA is adding mention of the venting
prohibition in the definition of substitute. While EPA is finalizing
its interpretation that carbon dioxide, nitrogen, water, ammonia,
chlorine, hydrocarbons, and R-441A are substitutes, the regulations as
finalized make clear that when these substitutes are used as
refrigerants in
[[Page 82302]]
the end-uses specified in Sec. 82.154(a)(1), they are exempt from the
requirements of subpart F and can be referred to as ``exempt''
substitutes. Similarly, the term ``non-exempt substitutes'' as used in
this subpart refers to all other substitutes and end-uses not specified
in Sec. 82.154(a)(1) as exempt from the venting prohibition. This
clarification is only for purposes of the subpart F regulations, and
should not be construed to affect any other subpart.
One commenter requested that the regulations include the phrase
``non-exempt refrigerants'' more frequently so that the reader does not
have to understand that the regulatory definition of refrigerants
excludes substitutes that are exempted from the venting prohibition.
EPA responds that while exempt substitutes are included in the
regulatory definition of refrigerant, the regulatory text has been
revised to clarify that the obligations under subpart F do not apply to
exempt substitutes. EPA has included in the definition of substitute a
description of the terms ``exempt substitutes'' and ``non-exempt
substitutes'' with reference to Sec. 82.154(a)(1), which provides that
exempt substitutes are exempt from the requirements of this subpart, so
that readers of the regulation can follow EPA's intent from the
definition. EPA has also added references in the regulation to class I,
class II, and non-exempt substitute refrigerants, where applicable, to
be clear which refrigerants are subject to the provisions.
Suitable Replacement Refrigerant
EPA is removing the defined term suitable replacement refrigerant.
As discussed in Section IV.F.10 of this notice, EPA is removing the
extension to retrofit or retire an appliance using an ODS refrigerant
if a suitable replacement refrigerant with a lower ozone depletion
potential is unavailable. It is therefore appropriate to remove the
term from the list of definitions.
System Receiver
EPA is finalizing the creation of a defined term system receiver to
provide clarity to the reader and improve the organization of these
regulations, by providing a definition of this term in a location where
the reader might expect to find it. Under the added definition, a
system receiver is the isolated portion of the appliance, or a specific
vessel within the appliance, that is used to hold the refrigerant
charge during the servicing or repair of that appliance. This
definition was previously included only in a parenthetical in the
regulatory text at Sec. 82.156(a), which describes the required
practices to properly evacuate refrigerant from an appliance. The
definition added in this rule does not introduce any new practices to
the evacuation requirements. EPA is also removing the parenthetical in
Sec. 82.156(a), as it is no longer needed.
Technician
EPA is amending the definition of technician to improve clarity. As
revised, the definition highlights that the determining factor for
being a technician is performing actions that could reasonably be
expected to violate the integrity of the refrigerant circuit. In
general, only people who have completed the technician certification
process should be performing actions that could violate the integrity
of the refrigerant circuit and could therefore release refrigerant into
the environment.
The exception to that general statement is that persons
maintaining, servicing, or repairing MVACs and persons disposing of
small appliances, MVACs, or MVAC-like appliances do not need to be
technicians, as defined within subpart F. This exception is explicitly
included in the definition finalized in this action. This revision is
not intended to affect the scope of the existing requirements but
rather to respond to requests from stakeholders prior to the
publication of the proposed rule that the Agency clarify which
activities must be conducted by technicians and which need not be. EPA
received comments stating that the proposed revision would require
persons maintaining, servicing, or repairing MVACs to be technicians.
EPA did not intend to impose that requirement and has corrected that in
the final rule. EPA also edited the regulations in the sales
restriction in Sec. 82.154(c) to ensure that technician applies only
to technicians authorized under section 608 and not persons authorized
under section 609.
The prior definition of technician also included a non-exclusive
list of example activities that are reasonably expected to violate the
integrity of the refrigerant circuit as well as examples of activities
that do not. EPA proposed to edit these examples to improve clarity and
to add the following two examples of activities reasonably expected to
violate the integrity of the refrigerant circuit: Adding or removing
components and cutting the refrigerant line. EPA is finalizing the
definition substantially as proposed, including the two new example
activities that are reasonably expected to violate the integrity of the
refrigerant circuit, and with the modifications from the proposal
described above related to MVACs and persons authorized under section
609.
Very High-Pressure Appliance
EPA is finalizing amendments to the definition of very high-
pressure appliance to update the list of example refrigerants with the
most commonly used refrigerants today. Because revisions to appliance
and refrigerant carry over into this term as well, under the revised
definition very high-pressure appliances include those that use ODS and
non-ODS substitute refrigerants.
Voluntary Certification Program
EPA is finalizing the proposed removal of the defined term
voluntary certification program. This term references a provision in
the regulations that grandfathered in technicians who were certified
prior to the establishment of the technician certification program in
subpart F. As discussed in Section IV.J.4 below, EPA is removing these
grandfathering provisions in this action because they are no longer
needed and therefore is removing the definition as well.
B. Revisions to the Venting Prohibition in Sec. 82.154(a)
1. Background
As explained in Section III of this notice, under the revisions
finalized in this rule, Sec. 82.154(a) prohibits the venting of ODS
refrigerants and non-ODS substitute refrigerants to the environment by
persons maintaining, servicing, repairing, or disposing of an
appliance. This provision provides an exemption to the venting
prohibition for certain substitutes in specific end-uses based on a
determination that the listed substitutes in the listed end-uses do not
pose a threat to the environment when released. As revised, this
section also exempts from the venting prohibition de minimis releases
of ODS refrigerants and non-exempt substitute refrigerants, and defines
de minimis releases of ODS refrigerants and non-exempt substitute
refrigerants to be those releases that occur when the other provisions
of subpart F (or subpart B in the case of MVACs) are followed.
2. Applying the de minimis Exemption to Substitute Refrigerants
As explained in more detail earlier in this notice, the knowing
venting, release, or disposal of substitutes for class I and class II
refrigerants in the course of maintaining, servicing, repairing, or
disposing of an appliance or IPR is expressly prohibited by section
608(c)(1) and (2) of the CAA, effective November 15, 1995, unless the
Administrator determines that such
[[Page 82303]]
venting, release, or disposal does not pose a threat to the
environment. This prohibition is commonly called the venting
prohibition. Section 608(c)(1) establishes the venting prohibition for
class I and class II substances, and also establishes an exemption from
the prohibition for de minimis releases associated with good faith
attempts to recapture and recycle or safely dispose of ``any such
substance.'' The statutory language of section 608(c)(2) extends
paragraph 608(c)(1) to substitutes for class I and class II substances
used as refrigerants in appliances and IPR. This extension includes
both the prohibition on venting and the exemption for de minimis
releases associated with good faith attempts to recapture and recycle
or safely dispose of such substances.
Prior to this rulemaking, for class I and II substances EPA had
interpreted as de minimis those releases that occur despite compliance
with EPA's required practices under the previous regulations for
recycling and recovery, use of certified recovery and/or recycling
equipment, and technician certification programs. EPA interpreted
compliance with those regulations to represent ``good faith attempts to
recapture and recycle or safely dispose'' of refrigerant. Accordingly,
the prior regulations at Sec. 82.154(a)(2) provided that releases of
ODS refrigerants are considered de minimis only if they occur when the
other provisions of subpart F (or subpart B in the case of MVACs) are
followed. Although the prior regulations at Sec. 82.154(a) exempted de
minimis releases of non-exempt substitutes from the venting
prohibition, those regulations did not provide any express guidance for
such substitutes as to what practices are considered ``good faith
attempts to recapture and recycle or safely dispose'' of the substitute
such that incidental releases would qualify for the de minimis
exemption.
EPA interprets the phrase ``good faith attempts to recapture and
recycle or safely dispose'' similarly when it applies to substitute
refrigerants under section 608(c)(2) as when it applies to ODS
refrigerants under section 608(c)(1). Thus, compliance with the
provisions regarding the evacuation of equipment, use of certified
equipment, and technician certification in any instance where a person
is opening (or otherwise violating the refrigerant circuit) or
disposing of an appliance would represent ``good faith attempts to
recapture and recycle or safely dispose'' of non-exempt substitute
refrigerants. EPA considers these provisions to appropriately represent
good faith attempts to recapture and recycle or safely dispose of such
substitute refrigerants. For example, the proper use of certified
recovery equipment and the evacuation of refrigerant to prescribed
standards would be considered a good faith attempt to recapture and
recycle or safely dispose of non-exempt substitute refrigerants when
maintaining, servicing, repairing, or disposing of an appliance.
Under this approach, releases are only considered de minimis if
they occur when these procedures, or those under subpart B, are
followed. Conversely, emissions that take place during maintenance,
servicing, repair, or disposal when these provisions are not followed
are not de minimis emissions and are subject to the venting
prohibition. While these principles were clearly expressed in the prior
regulations for ODS, the prior regulations did not clearly establish
what practices the regulated community would need to follow in order to
qualify for the de minimis exemption and to comply with the venting
prohibition while maintaining, servicing, repairing, or disposing of
equipment containing non-exempt substitute refrigerants. With the
revisions finalized in this rule, EPA is clarifying how the venting
prohibition and de minimis exemption apply to non-exempt substitute
refrigerants, to increase certainty for and facilitate compliance by
the regulated community, as well as further explaining its
interpretation of these statutory provisions.
It is impossible to open an appliance (or otherwise violate the
refrigerant circuit) or dispose of an appliance without emitting some
of the refrigerant in the circuit. Even after the appliance has been
evacuated, some refrigerant remains, which is released to the
environment when the appliance is opened or disposed of. Other
activities that fall short of opening or disposing of the appliance but
that involve violation of the refrigerant circuit also release
refrigerant, albeit in very small quantities, because connectors (e.g.,
between hoses or gauges and the appliance) never join together without
intervening space. Even in the best case in which a good seal is made
between a hose and an appliance before the valve between them is
opened, some refrigerant will remain in the space between the valve and
the outer seal after the valve is closed. This refrigerant will be
released when the outer seal is broken. Thus, whenever a person opens
an appliance (or otherwise violates the refrigerant circuit) in the
course of maintaining, servicing, repairing, or disposing that
appliance, he or she could violate the venting prohibition unless the
exception for de minimis releases applies. Because EPA is finalizing
revisions that define the exception for substitute refrigerants such
that it only applies when the person complies with the existing
refrigerant management provisions, compliance with those provisions
will ensure that any releases incidental to these practices will be
considered de minimis and thus will not violate the venting prohibition
under section 608(c)(2).
One commenter stated that it fails to see why it would be unclear
to the regulated community that the same de minimis exemption
applicable to class I and II substances applies equally to substitutes.
Section 608(c)(1) provides a specific de minimis exemption. Paragraph 1
contains the de minimis language, so that language clearly applies to
the intentional venting/release of substitutes under paragraph 2. In
other words, the de minimis language in section 608(c)(1) is expressly
applicable to section 608(c)(2), and there is no ambiguity that EPA
needs to clarify.
EPA agrees with the comment that the statute applies the de minimis
exemption to substitute refrigerants. This statutory interpretation
supports the revisions finalized in this rule. The statutory ambiguity
arises because neither section 608(c)(1) or (2) specifically define
what releases would qualify for the de minimis exemption or what would
be considered ``good faith attempts to recapture and recycle or safely
dispose'' of such a substance. The Agency previously established
regulations clarifying what releases would be considered exempt from
the venting prohibition under the de minimis exemption for ODS
refrigerants. For class I and II substances EPA has interpreted those
releases that occur despite compliance with EPA's required practices
for recycling and recovery under the previous Sec. 82.156, use of
recovery and/or recycling equipment certified under Sec. 82.158, and
technician certification programs under Sec. 82.161 as falling within
the de minimis exemption. Because the de minimis language in section
608(c)(1) is directly applicable to section 608(c)(2), it is reasonable
for EPA to choose to use the same regulations to clarify which releases
of non-exempt substitute refrigerants qualify for the de minimis
exception. These regulations accordingly fill a gap in the statute and
the prior regulations relating to the definition of the de minimis
exemption and the phrase ``good faith attempts to recapture and recycle
or safely dispose'' for non-exempt substitute refrigerants.
[[Page 82304]]
Another commenter stated that EPA must distinguish between
provisions interpreting and enforcing the venting prohibition and other
provisions implementing the statutory requirements to ``minimize the
use and emission'' and ``maximize the recapture and recycling'' of
class I and class II substances. In the commenter's view, the leak
repair program is clearly related to the latter requirements. In
addition, to the extent that a regulatory violation such as
recordkeeping does not cause a release, EPA cannot use that as a
violation of the venting prohibition. The comment concludes that all de
minimis releases associated with good faith attempts to recover or
recycle refrigerants are exempt regardless of regulatory compliance.
EPA disagrees that there is a subset of the provisions finalized in
this action that does not interpret, explain, or enforce the venting
prohibition and is only aimed at minimizing the use and emission or
maximizing the recapture and recycling of refrigerants. Under the prior
regulations with regard to ODS, the regulatory text has long used the
required practices under subpart F, including the leak repair
provisions under the prior Sec. 82.156(i), to clarify which emissions
will qualify for the de minimis exemption and thus not run afoul of the
venting prohibition. The stakeholder community has appeared to accept
this structure, and the interpretation of the venting prohibition it
embodies, as it related to ODS. As described above in more detail, EPA
is extending this regulatory structure which has long interpreted and
enforced the venting prohibition for ODS to do the same for the venting
prohibition as it applies to non-exempt substitute refrigerants. The
fact that these requirements may also be related to minimizing the use
and emission or maximizing the recapture and recycling of ODS
refrigerants does not preclude EPA from using those requirements to
clarify how the venting prohibition applies to non-exempt substitute
refrigerants. Nor does it prevent EPA from choosing to interpret,
explain, and enforce the de minimis exemption for ODS and non-exempt
substitutes through consistent requirements. EPA is extending this
regulatory structure to non-exempt substitutes to clarify its
interpretation of the ambiguous statutory phrase ``de minimis releases
associated with good faith attempts to recover or recycle
refrigerants'' and to enhance certainty that emissions that occur while
complying with the regulations are covered by this exemption. After the
revisions finalized in this rule, releases of non-exempt substitutes
will be considered de minimis only if they occur when the specified
requirements are satisfied.
In addition, EPA does not agree with the comment's implication that
the leak repair program relates only to minimizing the use and emission
or maximizing the recapture and recycling of refrigerants. For example,
leak repair is a type of servicing and releases of non-exempt
substitutes that occur in the course of repairing leaks as required by
the leak repair program could violate the venting prohibition. As such,
it is reasonable to clarify in the regulations that releases of non-
exempt substitutes that are incidental to repairing leaks as required
by the regulations will not be considered to violate the venting
prohibition. In establishing the recordkeeping requirements in this
rule, EPA is not suggesting that every failure to comply with a
recordkeeping requirement would necessarily result in a violation of
the venting prohibition. But in any event a failure to comply with a
recordkeeping requirement would certainly be a violation of section
114.
Another commenter stated that there is no basis in the text of the
CAA to assert that the venting prohibition is self-effectuating but
that the de minimis exemption is not. It may be reasonable to interpret
de minimis to mean in compliance with a comprehensive regulatory
program when such a program is already authorized, but EPA cannot
create a comprehensive regulatory program from that term. The commenter
believes that it would be reasonable to interpret de minimis as those
releases that occur when following best practices that occur while
maintaining, servicing, repairing, or disposing of an appliance.
While the prohibition on venting under section 608(c) is self-
effectuating, meaning the prohibition itself is legally binding even
without implementing regulations, the statutory terms contain
ambiguity. For example, the terms ``de minimis releases'' and ``good
faith attempts to recapture and recycle or safely dispose'' are not
specifically defined in section 608(c)(1) or (c)(2). Accordingly, it is
appropriate for EPA to clarify in its regulations how it interprets and
will apply those terms. As described in greater detail above, EPA is
finalizing revisions to the section 608 regulations to further
interpret and explain the venting prohibition and increase its
enforceability by giving greater clarity and certainty as to which
releases it views as being covered by the de minimis exemption.
Addressing the application of the venting prohibition and the de
minimis exemption through rulemaking provides advance notice to
regulated entities; this is in contrast to case-by-case application,
which would be the approach in the absence of rulemaking.
Further, even if we agreed with the comment that the term de
minimis does not support development of a comprehensive regulatory
program, EPA is not creating such a program through this rule. Rather,
it is extending a regulatory program that already exists and serves to
interpret and enforce the venting prohibition and de minimis exemption
for ODS and using those same requirements for the same purpose for non-
exempt substitute refrigerants. Although EPA could have chosen a
different method to interpret and enforce the venting prohibition for
non-exempt substitute refrigerants, for reasons described elsewhere in
this rule, EPA is electing to regulate ODS refrigerants and non-exempt
substitute refrigerants consistently.
3. Exempting Certain Substitutes From the Venting Prohibition
EPA proposed to explicitly state in the regulatory text that the
substitutes exempted from the venting prohibition in Sec. 82.154(a)(1)
are also exempt from the other provisions of subpart F. EPA also
proposed to reorganize the list of exempt substitutes by refrigerant
type for readability. EPA did not propose to revise the listed end-uses
or propose to add or remove any substitutes from the list.
Multiple commenters supported EPA's proposal to extend the existing
regulations to HFCs and other non-exempt substitutes for the clarity it
would provide to manufacturers and technicians. Other commenters
recommended that EPA treat all refrigerants (including exempt
substitutes like hydrocarbons, ammonia, and carbon dioxide) equally in
all aspects of the subpart F regulations, including recovery and
reclamation, technician certification, leak detection, and
recordkeeping. Consistent application of the regulations to all
refrigerants, the commenters say, would reinforce essential refrigerant
management practices for all systems, reduce leaks, improve safety, and
improve the operating efficiency of equipment. The commenters say that
all refrigerants, other than water and some HFOs, have either
flammability properties, higher GWP properties, or properties hazardous
to human health (toxicity, risk of asphyxiation, frostbite, etc).
Another commenter was opposed to exempting refrigerants that may be
vented from the broader subpart F
[[Page 82305]]
requirements (with the possible exception of systems using water,
nitrogen, or carbon dioxide) as it viewed such an exemption as a
dramatic expansion of the exemption to the venting prohibition. The
commenter states that establishing a separate class of equipment that
does not require proper refrigerant management practices will only
increase confusion in the field and exacerbate the problem of illegal
venting.
EPA agrees with the comments that the extension of the subpart F
regulations increases clarity. EPA disagrees that its clarification
that exempt substitutes are not subject to the subpart F requirements
is an expansion of the exemption since the service practices and
requirements in subpart F had previously only applied to ODS
refrigerant. There are a couple of reasons for EPA's present view that
it is appropriate not to extend the provisions of subpart F to
refrigerants that have been exempted from the venting prohibition.
First, EPA has previously determined that the release of these
substances do not pose a threat to the environment or are already
controlled by other authorities. (See 69 FR 11949, 80 FR 19454, and 81
FR 22810). Given those decisions, it would generally not make sense to
require all procedures for recovery or safe disposal, or to apply all
other provisions of subpart F to those exempt refrigerants. This is
consistent with the intent of section 608(c)(2), which states that
substitutes may be exempted from the venting prohibition if the
Administrator determines that not just the venting but also the
``releasing, or disposing'' of such substance does not pose a threat to
the environment.
Second, the refrigerant management practices in subpart F may be
inappropriate for some of the exempted refrigerants. For example, the
venting of exempt hydrocarbon refrigerants in certain end-uses may be
the safest option for technicians at this time, considering that such
refrigerants are flammable but most existing recovery equipment were
not designed and constructed, e.g. with spark-proof components, for use
on flammable refrigerants. As long as the Administrator has determined
that such venting of those substances in those end-uses does not pose a
threat to the environment, such venting is legal and may be safer than
following the subpart F requirements in some circumstances.
4. Releases From Containers
EPA is moving the previous regulatory provision in Sec.
82.154(a)(2) that states that the venting prohibition applies to the
release of refrigerant (both ODS and non-exempt substitute
refrigerants) after its recovery from an appliance. EPA is moving this
provision to a separate paragraph (Sec. 82.154(a)(3)) rather than its
previous location in the description of a de minimis release. Standing
alone should make the provision clearer that it is a violation of the
venting prohibition to vent or otherwise release refrigerant after that
refrigerant is recovered from an appliance, whether from cylinders,
recovery equipment, or any other storage container or device. The
venting prohibition cannot be circumvented by using a recovery device
and subsequently releasing the refrigerant. This is especially
important because refrigerant recovered from appliances may be
contaminated or be a mixture of multiple refrigerants. Such refrigerant
may be difficult to reclaim or may require a fee for proper disposal or
destruction. In light of those difficulties, it is important to
emphasize that venting this refrigerant, even though it is in a
cylinder and not an appliance, is illegal. EPA did not receive any
comments on this provision and is finalizing it as proposed.
C. Revisions to the Refrigerant and Appliance Sales Restrictions in
Sec. 82.154
1. Background
Under the prior regulations at Sec. 82.154(m), the sale or
distribution of a refrigerant containing a class I or class II
substance, such as R-12 or refrigerant blends that include HCFCs, is
restricted to technicians certified under sections 608 or 609 of the
CAA. The sale or distribution of any class I or class II substance
suitable for use in an MVAC that is in a container of less than 20
pounds may only be sold to technicians certified under section 609.
The prior regulations at Sec. 82.154(g) also restricted the sale
of used ODS refrigerant sold for reuse unless certain conditions are
met, the most important of which is that the refrigerant has been
reclaimed. Sections 82.154(j) and (k) prohibited the sale of appliances
containing an ODS refrigerant unless the appliance has a servicing
aperture or process stub to facilitate the removal of refrigerant at
servicing and disposal. Section 82.154(p) prohibited the manufacture or
import of one-time expansion devices that contain any refrigerant (ODS
or non-ODS), other than exempted refrigerants.
2. Extension to Substitute Refrigerants
Through today's rule, EPA is extending the sales restriction to
HFCs and other non-exempt substitute refrigerants. This sales
restriction applies to non-exempt substitute refrigerants sold in all
sizes of containers for use in all types of appliances, including
MVACs. EPA is creating an exception for small cans (two pounds or less)
of refrigerant intended to service MVACs, so long as the cans are
equipped with a self-sealing valve. EPA is also restricting the sale of
used non-exempt substitute refrigerants.
Since 1993, EPA has restricted the sale of ODS refrigerant to
certified technicians as a means of ensuring that only qualified
individuals--those who have sufficient knowledge of the safe handling
regulations--actually handle refrigerant. EPA considers the restriction
on the sale of ODS refrigerant to be important for ensuring compliance
with and aiding enforcement of the regulations issued under sections
608 and 609 of the CAA. This requirement also relates to EPA's Next
Generation Compliance strategy since compliance with this requirement
is largely carried out by distributors who sell refrigerant to
technicians. In this rulemaking, EPA is choosing to apply the same
requirements for sales of ODS and non-exempt substitutes. Limiting the
sale of non-exempt substitute refrigerants to technicians who have
demonstrated knowledge of safe handling practices helps minimize the
release of refrigerants during the maintenance, servicing, and repair
of appliances containing such substitute refrigerants. A sales
restriction for non-exempt substitute refrigerants also provides
important support to the extension of the technician certification
requirements to individuals working with non-exempt substitute
refrigerants.
Generally, commenters are supportive of EPA's proposal and agree
with EPA's rationale. Commenters who are generally opposed to extending
EPA's regulations under section 608 to substitutes did not specifically
raise the issue of whether EPA had authority to extend the sales
restriction to HFCs and other non-exempt substitute refrigerants. EPA
addresses the general comments about its authority for extending the
refrigerant management regulations, as appropriate, to non-exempt
substitute refrigerants in Section III of this notice. Some commenters
stated that the sales restriction should be extended to hydrocarbons.
These commenters noted that the flammability of these refrigerants
poses far greater risks than that of R-22 when handling it and
servicing equipment. Because the sales restriction is an element of the
broader technician certification provisions of subpart F, EPA responds
to comments concerning the sale and
[[Page 82306]]
handling of flammable refrigerants in Section IV.I of this notice.
3. Sales of Small Cans
a. What is EPA finalizing concerning small cans of MVAC refrigerant?
Historically, individuals have been able to purchase small cans of
non-ODS refrigerant to service their own vehicles. This do-it-yourself
(DIY) servicing is unique in the air-conditioning and refrigeration
sector to the MVAC end-use. As mentioned previously in this notice, EPA
is finalizing the extension of the sales restriction to non-exempt
substitutes. EPA is also finalizing an exemption from the sales
restriction for small cans of MVAC refrigerant that are manufactured
with a self-sealing valve to minimize the release of refrigerant during
servicing because the Agency has concluded that restricting the sale of
small cans of refrigerant for use in servicing MVAC would be
unnecessarily burdensome. If EPA extended the sales restriction to
substitute refrigerants without exempting small cans, the sale of both
small containers of refrigerant, which are used for DIY servicing of
MVAC systems, and typical size (e.g., 25- or 30-pound) cylinders of
refrigerant used by technicians to service MVAC and other appliances
would be limited to certified technicians.
In the United States, HFC-134a has been used in all newly
manufactured vehicles with air-conditioning systems since 1994 and
almost all small cans of refrigerant sold for MVAC DIY use are cans of
HFC-134a.\18\ More recently, the SNAP program listed HFO-1234yf, HFC-
152a, and carbon dioxide (CO2 or R-744), three climate-
friendly alternatives for MVAC, as acceptable subject to use conditions
for use in new light-duty vehicles. Manufacturers are currently
producing or are actively developing light-duty models using these
three refrigerants. As finalized in this rule, the exception
for small cans would apply to HFC-134a, HFO-1234yf, HFC-152a, as well
as any additional MVAC refrigerants listed as acceptable subject to use
conditions under SNAP that are not exempt from the venting prohibition.
Because CO2 is exempt from the venting prohibition, it is
not subject to the sales restrictions and certification is not required
for its purchase in any size container. EPA has not received a
submission of a unique fitting for use on a small can of HFO-1234yf;
therefore, at this time this refrigerant cannot be sold in small cans
to individuals, regardless of the exemption finalized in this rule.
---------------------------------------------------------------------------
\18\ ODS refrigerant for MVAC servicing that is sold in
cylinders less than 20 pounds is currently restricted to technicians
certified under section 609 of the CAA.
---------------------------------------------------------------------------
Based on the NPD Automotive Aftermarket Industry Monitor, 2008,
approximately 14 million small cans are sold each year. If EPA were to
extend the sales restriction to small cans without the exemption for
small cans with self-sealing valves, individuals who normally service
their own MVAC would be required to either seek certification under
section 609 or take their car to a technician to be serviced. EPA
estimates that the cost associated with those two actions could be as
much as $1.5 billion per year. For more details, see Analysis of the
Economic Impact and Benefits of Final Revisions to the National
Recycling and Emission Reduction Program in the docket.
EPA's proposal to exempt small cans of refrigerant for use in MVAC
systems that are equipped with a self-sealing valve was informed by
input from the Auto Care Association and the Automotive Refrigeration
Products Institute, two associations that represent the vast majority
of manufacturers of small cans in the United States. EPA also reached
out to CARB and other industry representatives as discussed in the
NPRM. Based on California's experience, EPA proposed the exemption for
small cans equipped with self-sealing valves as an effective way to
reduce emissions of HFCs used to service MVACs without limiting sales
to certified technicians. These valves reduce the release of
refrigerant during servicing and reduce releases from the can after the
servicing is complete.
Manufacturers already produce small cans with self-sealing valves
to meet California's requirements. According to industry
representatives and CARB, self-sealing valves are estimated to cost
$0.25 per can. In light of that information, EPA does not find it to be
unduly burdensome to add self-sealing valves to all small cans produced
for sale in the United States, especially as compared to an extension
of the sales restriction that would prohibit the sale of small cans to
non-certified persons. Because they are incorporated into the product,
consistent with EPA's Next Generation Compliance principles, the
individual servicing her or his personal MVAC would reduce emissions
without any additional effort or training, as compared to using small
cans of refrigerant on the market today that do not employ a self-
sealing valve. Thus, EPA has determined that self-sealing valves are an
effective mechanism for controlling the release of non-exempt
substitute refrigerants to the atmosphere, making it unnecessary to
impose burdensome training and/or certification requirements more
broadly at this time.
As described in Analysis of the Economic Impact and Benefits of
Final Revisions to the National Recycling and Emission Reduction
Program, EPA estimates that a nationwide requirement to use self-
sealing valves on all small cans will reduce emissions by more than
0.657 MMTCO2eq. per year. EPA also anticipates there could
be additional emissions reductions to the extent the self-sealing
valves allow individuals to store and re-use the same can of
refrigerant, reducing the need to buy additional small cans. Currently,
a small can is typically used in one vehicle and then discarded with
some refrigerant still remaining in the can -from which it will
ultimately be released to the environment. EPA estimates that the
annual cost for this requirement would be approximately $3 million with
the cost decreasing over time as manufacturers increase production and
achieve greater economies of scale.
EPA is finalizing a new appendix E establishing a standard for
self-sealing valves that is based largely on CARB's Test Procedure for
Leaks from Small Containers of Automotive Refrigerant, TP-503, as
amended January 5, 2010. To be consistent with the CARB standard and
existing small cans that are already on the market, the leakage rate
may not exceed 3.00 grams per year when the self-sealing valve is
closed. This leakage rate applies to full containers as well as
containers that have been used and are partially full.
b. How is EPA responding to comments about this topic?
EPA received comments from several manufacturers, distributors, and
retailers of automotive refrigerant, and associations representing
them, in support of requiring that the small cans be outfitted with
self-sealing valves and not restricting the sale of small cans to
certified technicians. EPA also received comments from multiple
industry associations and CARB supporting these provisions.
Two environmental organizations were opposed to the proposed
exemption for small cans equipped with self-sealing valves. The
commenters recommend that only certified technicians be allowed to
purchase MVAC refrigerant, regardless of the container size. The
commenters believe that the DIY community is a large source of
emissions of automotive refrigerant. Specifically, they claimed that
emissions occur because DIYers are untrained in the use of the product,
they
[[Page 82307]]
vent remaining refrigerant from the MVAC prior to recharging it because
they do not own recovery and recycling equipment, and they are merely
filling, rather than repairing, a leaking system. One of the commenters
estimated the annual emissions of automotive refrigerant at 18
MMTCO2eq.
EPA responds that DIY servicing is unique to the MVAC end-use, as
discussed previously in this notice. EPA did not propose to restrict
the sale of small cans of MVAC refrigerant to certified technicians,
explaining its concerns that such a requirement could be unnecessarily
burdensome (80 FR 69479; Nov. 9, 2015). If EPA were to prohibit DIY
servicing, individuals who normally service their own MVAC would be
required to either seek certification under section 609 or take their
car to a technician to be serviced. EPA estimates that the cost
associated with those two actions could be as much as $1.5 billion per
year. In the short term, EPA has concluded that requiring small cans of
refrigerant to have self-sealing valves is an effective mechanism for
controlling the release of refrigerant to the atmosphere by DIYers from
the can of refrigerant. In the longer term, the transition to new MVAC
refrigerants will reduce emissions of high GWP refrigerants from DIY
servicing at little to no cost for DIYers.
EPA has estimated that the requirement for self-sealing valves on
small cans of refrigerant will reduce refrigerant emissions by 0.657
MMTCO2eq. per year compared to the current status. Self-
sealing valves prevent emissions of the gas remaining in the can after
the system is fully filled. Currently, if a system takes 1.5 cans to
fill, the DIYer will have no choice but to allow the extra 0.5 can to
be released to the environment after detaching it. Furthermore, because
self-sealing valves allow individuals to store and re-use the same can
of refrigerant, there may be less need to buy additional small cans.
CARB has claimed benefits of 0.25-0.47 MMTCO2eq for their small can
program in 2020. However, because their program includes more than just
self-sealing valves (e.g., refundable deposits), the benefits are not
directly comparable. CARB has noted a reduction in sales of small cans
of 1.1 million to 1.9 million cans, which they attribute to the
effectiveness in the valves and the displacement of new purchases by
later use of the remaining heel.
EPA received one comment from a chemical manufacturer stating that
they would support the continued sale of small cans without self-
sealing valves but limit those sales to certified technicians under
section 609. EPA does not see the benefit of restricting the sale of
small cans to people certified under section 609 since small cans of
refrigerant that do not have self-sealing valves are inherently
emissive. Being certified under section 609 would not prevent the
emission of the refrigerant from the heel of the can.
Commenters who oppose the sale of small cans generally do support
the requirement to use self-sealing valves if there is not a total ban
on sales. One commenter also strongly recommended that EPA allow the
sale of small cans of HFO-1234yf and HFC-152a so that DIY consumers
will not be enticed to recharge their HFO-1234yf system with HFC-134a
for the lack of any alternative. EPA responds that the regulations at
Sec. 82.154(c)(1)(x) as revised in this action include any non-exempt
substitute refrigerant that is intended for use in an MVAC. Therefore,
small cans of HFO-1234yf and HFC-152a would be exempt from the sales
restriction but also have the same requirements for unique fittings and
self-sealing valves under section 608. As discussed previously in this
notice, HFO-1234yf cannot currently be sold in small cans because a
submission has not yet been made to SNAP for a unique fitting for small
cans of HFO-1234yf. This action under section 608 does not prohibit the
sale of any MVAC refrigerant alternative in a small can; however,
refrigerants must be listed as acceptable or acceptable subject to use
conditions for MVAC and unique fittings for small cans must be
established under section 612 of the CAA prior to use\19\.
---------------------------------------------------------------------------
\19\ ``Use'' is defined at 40 CFR 82.172 to include ``use in a
manufacturing process or product, in consumption by the end-user, or
in intermediate uses, such as formulation or packaging for other
subsequent uses.''
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Small cans of refrigerant sold for MVAC servicing are different
from containers of refrigerant sold for stationary refrigeration and
air-conditioning in that the small cans for MVAC are required to have
unique fittings. The SNAP program requires as a use condition for MVAC
refrigerants that the container and the MVAC system use unique fittings
to prevent cross-contamination. If used properly, the unique fittings
will not allow for the introduction of HFC-134a refrigerant into a
system using any other refrigerant, including CFC-12, HFO-1234yf, or
another approved substitute refrigerant. Using an adapter or
deliberately modifying a fitting to use a different refrigerant is a
violation of the SNAP use conditions. Unique fittings will also reduce
the likelihood that a small can will be used to service appliances
other than MVACs that use non-exempt substitute refrigerants, which
would be in contravention of the sales restriction.
Refrigerant sold for MVAC servicing is also different than other
refrigerant because of the limited types of equipment that could be
serviced with a small can. First, many household appliances that use
refrigerants are hermetically sealed, like a refrigerator. Someone who
wanted to open that appliance would need greater skill and specialized
equipment to service the appliance since there would not be a servicing
port to access. This makes it less likely that homeowners would attempt
to use a small can to service other small household appliances. Larger
appliances that use HFC-134a that are not hermetically sealed, like a
reach-in cooler, would need more than one small can to fully charge the
appliance. Because of the cost and the added effort to use multiple
small cans to charge a larger appliance, it is not practical for
someone to use a small can. This would likely lead the person to
purchase a larger container of refrigerant, which would require that
the person be a certified technician.
Commenters, including CARB, supported the use of CARB's standards.
One commenter representing the manufacturers of small cans noted that
this standard was developed in a cooperative effort between CARB and
the refrigerant industry and that the procedures described in the
standard have been used since 2010 to certify small cans sold in the
California market. The commenter also stated that adopting the
California standard would also allow for a quicker transition to cans
with self-sealing valves, while development and adoption of a new
standard would require a longer transition time and therefore, EPA
should provide a later compliance date.
EPA agrees with the commenters and has determined that the
establishment of the standard in appendix E, which is based on CARB's
Test Procedure for Leaks from Small Containers of Automotive
Refrigerant, TP-503, is appropriate. This provides for one uniform
standard across the nation, thus simplifying compliance and avoiding
potential burdens associated with complying with two different
standards, one in California and another in the rest of the country. No
commenter identified any other standard for self-sealing valves. EPA is
finalizing the provisions in the newly created appendix E without any
changes from the proposal.
EPA requested comment on whether the final rule should exempt the
sale of
[[Page 82308]]
HFC-134a only or of all MVAC substitute refrigerants in small cans. One
commenter responded that the exemption should apply to all refrigerants
for use in MVAC and MVAC-like appliances because the rationale applies
equally to other MVAC refrigerants. The minimal leakage and venting
from small cans of other refrigerants is relatively the same as from
small cans of HFC-l34a, and the commenters know of no technical reason
why a self-sealing valve could not be created for those cans also. EPA
appreciates the commenters' support for the proposal to apply the
exemption to all MVAC substitute refrigerants. EPA is finalizing the
exemption as proposed. It will apply to all MVAC substitute
refrigerants, except those exempt from the venting prohibition. EPA
also notes that refrigerants for use in MVAC-like appliances are not
exempt from the sales prohibition, consistent with EPA's approach to
MVAC-like appliances historically. Under section 609, technician
certification is required only when a person is servicing an MVAC
system for consideration whereas MVAC-like appliances must always be
serviced by a certified technician.
4. Servicing Apertures and Process Stubs
EPA is finalizing revisions that require that new appliances
containing a non-exempt substitute refrigerant (including a used non-
exempt substitute refrigerant) have a servicing aperture or process
stub to facilitate the recovery of refrigerant at servicing and
disposal. Including these design features on appliances containing such
substitutes facilitates compliance with the section 608(c) prohibition
against the venting, release, or disposal of substitute refrigerants
into the environment. These access points allow for the proper
evacuation or recovery of substitute refrigerant, preventing releases
to the atmosphere in the course of maintaining, servicing, repairing,
or disposing of the appliance. Without these access points, it would be
harder for persons maintaining, servicing, repairing, or disposing of
such appliances to properly evacuate the refrigerant in accordance with
Sec. 82.156(b). For example, these access points provide the person
disposing of an appliance the opportunity to properly remove the
refrigerant prior to crushing or shredding and thus avoid a knowing
release. EPA did not receive comments on this provision. The
manufacture or import of one-time expansion devices that contain any
refrigerant (ODS or non-ODS), other than exempted refrigerants, was
prohibited under the prior regulations. One-time expansion devices, by
design, release their refrigerant charge to the environment in order to
provide a cooling effect. Examples include self-chilled beverage
containers that must be disposed of or recycled after each use, as well
as reusable containers. EPA is finalizing minor edits to this
prohibition that reference the list of exempt refrigerants as proposed.
EPA did not receive any comments on this provision.
D. Revisions to the Safe Disposal Provisions in Sec. 82.155
1. Background
In the 1993 Rule, EPA established specific requirements for the
safe disposal of small appliances, MVACs, and MVAC-like appliances
containing ODS refrigerant since they typically enter the waste stream
with the refrigerant charge intact. Under the prior rules at Sec.
82.156(f), persons who took the final step in the disposal process of
such appliances had to either recover any remaining refrigerant in the
appliance or verify that the refrigerant has previously been recovered
from the appliance or shipment of appliances. If they verified that the
refrigerant has been recovered previously, they had to retain a signed
statement attesting to this or a contract from the supplier of the
appliances for three years. While recovery equipment used to remove the
refrigerant had to be certified under Sec. 82.158, persons recovering
the refrigerant at disposal did not need to be certified technicians.
2. Extension to Substitute Refrigerants
EPA is extending the preexisting safe disposal provisions
previously found at Sec. 82.156(f) for small appliances, MVACs, and
MVAC-like appliances containing ODS refrigerants to the same types of
appliances that contain non-exempt substitute refrigerants. Generally,
commenters support EPA's proposal and agree with EPA's rationale.
Commenters who stated that EPA does not have authority to extend
section 608 regulations to substitutes were silent on the specific
issue of the safe disposal provisions. A fuller and more general
discussion of the authority for this action is found in Section III of
this notice.
Safely disposing of both ODS and substitute refrigerant in small
appliances, MVACs, and MVAC-like appliances is important for the
environment and public health. According to EPA's Vintaging Model,\20\
EPA projects that the GWP-weighted amount of refrigerant contained
within MVACs and small appliances in use in 2015 was more than 260
MMTCO2eq and 175 MMTCO2eq, respectively. This
constitutes 12 and 8 percent, respectively, of the total GWP-weighted
amount of refrigerant contained within all appliances in the United
States in 2015. On an ODP-weighted basis, EPA estimates that more than
1,400 ODP-weighted metric tons of refrigerant were contained within
small appliances in 2015, representing 5 percent of the refrigerant
contained within all appliances in the United States. While EPA
projects that these amounts will decrease over time as zero-ODP and
low-GWP substitute refrigerants penetrate the market, the need for
robust safe disposal requirements remains because these appliances are
used for a long time. One commenter agreed, noting that forty percent
of the refrigerators sent to their recovery facility were manufactured
prior to 1993 and contain CFCs.
---------------------------------------------------------------------------
\20\ EPA's Vintaging Model estimates the annual chemical
emissions from industry sectors that have historically used ODS,
including air-conditioning and refrigeration. The model uses
information on the market size and growth for each of the end-uses,
as well as a history and projections of the market transition from
ODS to alternatives. The model tracks emissions of annual
``vintages'' of new equipment that enter into operation by
incorporating information on estimates of the quantity of equipment
or products sold, serviced, and retired or converted each year, and
the quantity of the compound required to manufacture, charge, and/or
maintain the equipment.
---------------------------------------------------------------------------
One commenter approves of the clear signal that the rule sends for
appliances containing exempt refrigerants. However, this commenter asks
how a recipient of a component of such an appliance for disposal would
be aware that the subpart F requirements do not apply to that
component. EPA responds that the only likely exempt refrigerant in that
scenario is a small appliance containing a flammable refrigerant. As
required under the SNAP use conditions, the component would have
markings such as red tubing or a warning label that would distinguish
that component from other components. The labels must be placed on the
outside of the appliance, on the inside of the appliance near the
compressor, on or near any evaporators that can be contacted by the
consumer, near the machine compartment, and near any and all exposed
refrigerant tubing.
3. Clarifications to the Existing Program
The safe disposal regulations require actions of three separate
groups of people: The final processor, the supplier of appliances for
disposal, and the person who recovers the refrigerant. The final
processor is the person who takes the final step in the disposal
process,
[[Page 82309]]
typically a scrap recycler or landfill operator. Final processors may
receive appliances with a charge or without a charge. The supplier is
the person dropping off the appliance (or shipment of appliances) for
disposal. The person who recovers the refrigerant may be the final
processor, the supplier, or a separate third entity. EPA is finalizing
as proposed regulatory text to help clarify the different actors.
Refrigerant may be recovered at any stage in the disposal process,
even prior to the supplier taking possession. As EPA stated in the 1993
Rule, ``the supplier to the final processor does not have to remove the
refrigerant but then must assure, through an accompanying
certification, that refrigerant has been removed earlier in the
disposal chain. Any copies of the certificate of removal provided to
the supplier could be passed on to the final processor.'' (58 FR 28704-
28705). EPA's intent has been to provide the flexibility needed to
permit the recovery of refrigerant by the entity in the disposal chain
that can accomplish that task most efficiently while at the same time
establishing a mechanism to help ensure that the refrigerant has not
simply been illegally vented. This flexibility is important for the
disposal sector, which is highly diverse and decentralized. This signed
certification serves both goals.
EPA is revising the regulations to clarify what must be in the
contract stating that refrigerant will be removed prior to delivery.
EPA is replacing the word ``remove'' which appears repeatedly in these
provisions with ``properly recover.'' These revisions clarify the
provisions' intent that the refrigerant is recovered to the required
evacuation levels using the appropriate equipment. EPA is also stating
explicitly that the contract should provide that the supplier of the
appliances is responsible for recovering any remaining refrigerant or
verifying that the refrigerant has already been evacuated. As discussed
in the 1993 Rule, the supplier to the final processor does not have to
remove the refrigerant but must assure, through accompanying
certifications, that the refrigerant has been removed earlier in the
disposal chain.
EPA notes here that a contract is appropriate for businesses to
streamline transactions in cases where they maintain long-standing
business relationships. A contract would be entered into prior to the
transaction, such as during the set-up of a customer account, not
simultaneously with the transaction. A signed statement is more
appropriate for one-off transactions between the supplier and the final
processor.
EPA is also clarifying the format that the records required under
this section may take. In general, where the regulations in subpart F
require an individual to maintain records, the Agency intends for them
to do so either in an electronic or paper format, preferably in an
electronic system. EPA is clarifying this point explicitly in the
recordkeeping provision at Sec. 82.155(c).
One commenter stated that the new Sec. 82.155 will remain unclear
if EPA does not review the relevant applicability determinations for
potential inclusion in the regulatory text. EPA responds that
applicability determinations are only applicable to the person
requesting the determination from EPA. However, in response to the
comment, EPA has reviewed and is incorporating information from
specific applicability determinations into the regulatory text where
the Agency finds it will increase clarity to the industry as a whole.
Two applicability determinations address the situation where
refrigerant has leaked out of an appliance prior to arriving at the
final disposer. Applicability determination number 608-8 addresses
whether a verification statement is needed where all of the refrigerant
has already leaked out due to a break in the refrigerant circuit.
Applicability determination number 608-9 addresses whether the term
leaked out includes instances in which the line has been cut prior to
the delivery of the appliance. EPA's determination in 1993 was that if
all the refrigerant has leaked out, the signed statement need not
contain the name and address of the person who performed the recovery
as no such person exists. The signed statement must, however, clearly
state that all the refrigerant in the appliance had already leaked out.
EPA also determined that ``leaked out'' means those situations in which
the refrigerant has escaped because of system failures, accidents, or
other unavoidable occurrences not caused by a person's deliberate acts
or negligence, such as deliberately cutting refrigerant lines. Scrap
processors may accept appliances whose lines have been cut as long as
they obtain a signed statement from the supplier. This includes
appliances that have been vandalized. EPA is incorporating information
from these determinations into the regulatory text at Sec.
82.155(b)(2)(iii).
Two applicability determinations address whether the verification
statements are needed for appliances that arrive at the final processor
in various conditions. Applicability determination number 608-8
pertains to the situation where the entire refrigeration circuit has
been removed from the appliance prior to delivery. Applicability
determination number C040001 pertains to (1) receipt of an appliance in
which some components of the refrigerant circuit have been removed; (2)
receipt of portions of the refrigerant circuit (e.g., compressor); (3)
receipt of an appliance in which the entire refrigerant circuit has
been removed; and (4) receipt of an appliance which has previously been
through a process in which refrigerant would have been released or
recovered.
EPA's determinations in 1993 and 1996 were that the first two
situations would be subject to the safe disposal regulations and the
third and fourth situations would not be. Any equipment that contained
refrigerant is subject to the safe disposal requirements. This includes
a complete appliance with an intact refrigerant circuit, an appliance
with a broken refrigerant circuit such as one with a component removed,
or a single component that would contain refrigerant in an appliance.
In all such instances the intent of the safe disposal program--to
verify that the refrigerant was recovered properly--still applies.
Consistent with these determinations, EPA interprets its
regulations such that items that have had the entire refrigerant
circuit removed, such as the outer housing of an air conditioner or the
structural shell of a refrigerator, are not subject to the safe
disposal regulations, as these items do not meet the definition of
appliance. Similarly, shredded material, baled scrap, or crushed cars
are not subject to the safe disposal regulations. The person
responsible for compliance with the safe disposal regulations is the
entity upstream that conducted the final processing where the appliance
was shredded, crushed, flattened, baled, or otherwise demolished and
where the refrigerant would have been previously recovered in
accordance with the regulations.
4. Hazardous Wastes
One commenter requested that EPA exclude hydrocarbon refrigerants
that are vented from the definition of hazardous waste. The commenter
reacted to a discussion in the proposed rule that household appliances
containing a hydrocarbon refrigerant would be exempt as a household
hazardous waste under the federal hazardous waste regulations at 40 CFR
261.4(b)(1) (although States may have more stringent regulations) and
therefore, could generally be vented upon disposal under both RCRA and
CAA regulations. The commenter notes
[[Page 82310]]
that a household-type appliance may also originate from institutional
and commercial settings and therefore would not qualify for the
household waste exclusion under RCRA.
EPA responds that these refrigerants may be subject to regulation
as hazardous waste, with the exception of refrigerants that are
directly reused. The Agency did not propose to amend the regulations
issued under RCRA in the proposal to this final action and has not
undertaken the analysis to do so at this time. This comment is also
outside the scope of this rulemaking, which relates to regulations
under section 608 of the CAA, not to regulations under RCRA.
5. Restructuring and Edits for Readability
EPA is creating a single section, Sec. 82.155, for all safe
disposal provisions, including the recordkeeping and reporting
requirements. One commenter supported moving the refrigerant recovery
requirements for small appliances, MVACs, and MVAC-like appliances into
a single section. The commenter suggested the section be titled ``Safe
Disposal of Refrigerant'' rather than ``Safe Disposal of Appliances''
as they stated that the CAA does not contain the concept of safe
disposal of appliances. While it is true that section 608(c) is
concerned with the entry of refrigerants into the environment, it
addresses such releases in the context of ``disposing of an
appliance.'' EPA disagrees that it is necessary to change the name of
the section. However, EPA has reorganized the section to put up front
the general requirement that refrigerant be evacuated from appliances
before describing the requirements of the final processor.
E. Revisions to the Evacuation Requirements in Sec. 82.156
1. Background
Under EPA's existing regulations at Sec. 82.156(a), ODS
refrigerant must be transferred to a system receiver or to a certified
recovery and/or recycling machine before appliances are opened for
maintenance, service, or repair. The same requirement applies to
appliances that are to be disposed of, except for small appliances,
MVACs, and MVAC-like appliances which were subject to separate
requirements under Sec. 82.156(g) and (h). To ensure that the maximum
amount of refrigerant is captured rather than released, EPA requires
that air-conditioning and refrigeration appliances be evacuated to
specified levels of vacuum.
2. Extension to Substitute Refrigerants
EPA is finalizing revisions in this action that extend the existing
requirements at Sec. 82.156 to appliances containing non-exempt
substitute refrigerants. Therefore, before appliances containing non-
exempt substitute refrigerants are opened for maintenance, service, or
repair, the refrigerant in either the entire appliance or the affected
part (when it can be isolated) must be transferred to a system receiver
or to a certified recovery and/or recycling machine. The same
requirements apply to appliances that are to be disposed of, except for
small appliances, MVACs, and MVAC-like appliances, which have separate
requirements.
Generally, commenters were supportive of EPA's proposal and agreed
with EPA's rationale. Commenters who stated that EPA does not have
authority to extend section 608 regulations to substitutes were silent
on the specific issue of evacuation requirements. EPA addresses general
comments about its authority for this action in Section III of this
notice.
i. Evacuation Levels for Appliances Other Than Small Appliances, MVACs,
and MVAC-Like Appliances
EPA is finalizing revisions to Sec. 82.156(a) such that appliances
other than small appliances, MVACs, and MVAC-like appliances containing
non-exempt substitute refrigerants must be evacuated to the levels
established for CFCs and HCFCs with similar saturation pressures. These
levels are based on the saturation pressures of the refrigerant, which
is a characteristic independent of whether or not the refrigerant is an
ozone-depleting substance. As is the case for CFCs and HCFCs, the
appropriate evacuation levels for HFCs and other substitutes depends
upon the size of the appliance and the date of manufacture of the
recovery and/or recycling equipment. EPA did not receive comment
expressing any technical concerns with extending the evacuation
requirements to substitute refrigerants. Some commenters stated that
they currently treat ODS and HFC appliances in the same manner,
including the level of evacuation.
ii. Evacuation Levels for Small Appliances
EPA is finalizing revisions to Sec. 82.156(b) to establish the
same evacuation requirements for servicing small appliances charged
with non-exempt substitute refrigerants as had previously existed only
for small appliances charged with ODS refrigerants. Technicians opening
small appliances for service, maintenance, or repair are required to
use equipment certified either under appendix B, based on AHRI 740, or
under appendix C, Method for Testing Recovery Devices for Use with
Small Appliances, to recover the refrigerant.
Technicians using equipment certified under appendix B have to pull
a four-inch vacuum. Technicians using equipment certified under
appendix C have to capture 90 percent of the refrigerant in the
appliance if the compressor is operational, and 80 percent of the
refrigerant if the compressor is not operational. Because the
percentage of refrigerant recovered is very difficult to measure on any
given job, technicians would have to adhere to the servicing procedure
certified for that recovery system under appendix C to ensure that they
achieve the required recovery efficiencies.
One commenter specifically expressed support for extending the
evacuation requirements to small appliances charged with non-exempt
substitutes but not to small appliances containing exempt refrigerants.
The commenter notes that the technician would be required to use
appropriately certified equipment to recover the refrigerant. EPA did
not propose to require the recovery of exempt refrigerants and agrees
that it would not be appropriate to finalize such a requirement in this
rule, as the venting prohibition does not apply to these substances.
EPA is also revising Sec. 82.156(b) to establish the same
evacuation requirements for disposing of small appliances that are
charged with non-exempt substitute refrigerants as currently exist for
small appliances charged with ODS refrigerants. Small appliances must
have 80 or 90 percent of the refrigerant in them recovered (depending
on whether or not the compressor was operational) or be evacuated to
four inches of mercury vacuum.
EPA is also finalizing revisions to the regulations to simplify the
evacuation requirements for small appliances so that they are the same
for both servicing and disposal. This new provision applies to both ODS
and non-exempt substitute refrigerants. Prior to this rulemaking, a
technician servicing a small appliance containing an ODS needed to only
recover 80 percent of the refrigerant when using recovery equipment
manufactured before November 15, 1993. At the same time, there was no
established level of evacuation in the disposal requirements when using
pre-1993 recovery
[[Page 82311]]
equipment. EPA is allowing that 80 percent level of evacuation for
disposal to simplify and unify the requirements. This revision will
have minimal effect as few people continue to use recovery equipment
manufactured prior to that date.
One commenter stated that there should not continue to be separate
evacuation levels for recovery equipment manufactured before 1993. This
commenter saw such equipment being used only rarely and only to avoid
the deeper evacuation requirements. This commenter also stated that
pulling a 4-inch vacuum on a small appliance is not equal to 80 percent
refrigerant recovery. EPA responds that the proposal explicitly stated
that EPA was not proposing to amend the required levels of evacuation
in Table 1, change the circumstances that would allow for alternate
evacuation levels, or to revise those alternate levels. EPA understands
the concerns raised by the commenter, but removing the older evacuation
levels at this time is beyond the scope of this rulemaking.
iii. Evacuation Levels for MVACs and MVAC-Like Appliances
Technicians repairing or servicing MVACs for consideration and
MVAC-like appliances containing an ODS or a non-exempt substitute
refrigerant are subject to the requirement to ``properly use'' (as
defined at Sec. 82.32(e)) servicing equipment approved pursuant to
Sec. 82.36(a). All persons recovering refrigerant from MVACs and MVAC-
like appliances for purposes of disposal of these appliances must
reduce the system pressure to or below 102 mm of mercury vacuum or use
refrigerant recycling equipment dedicated for use with MVAC and MVAC-
like appliances approved pursuant to Sec. 82.36(a). The proposed rule
incorrectly extended the MVAC servicing requirement to all persons, not
just those servicing MVACs for consideration. EPA has revised the final
rule to properly distinguish between the two.
EPA received a comment that section 608 of the CAA does not apply
to MVACs. As discussed above in Section III of this notice, section
608(c) provides EPA authority to regulate the disposal of MVACs, which
are a type of appliance. With respect to disposal of MVACs, this final
rule, like the prior regulations, only specifies evacuation levels for
such appliances when they are disposed.
3. Records for Disposal of Appliances With a Charge of More Than 5 and
Less Than 50 Pounds
EPA is adding new recordkeeping requirements at Sec. 82.156(a)(3)
for the disposal of appliances with a full charge of more than five and
less than 50 pounds of either ODS or non-exempt substitute refrigerant.
Most appliances this size are disassembled in the field and as such
must have the refrigerant recovered in the field. EPA is requiring
records that document the name of the company that employs the
technician, the location of the appliance being disposed of, the date
of recovery, and the type of refrigerant removed from each appliance
prior to disposal. The technician who evacuated the refrigerant, or the
company employing that technician, must also maintain records
indicating the quantity and type of refrigerant transferred for
reclamation, the company that they transferred the gas to, and the date
of the transfer. The technician, or the company employing the
technician, would be required to maintain these records for three
years. By company employing the technician, EPA means the person paying
the technician's salary or wage, not the appliance owner or operator
who has hired the technician for that specific service. The finalized
regulations have one change compared to the proposal: EPA is not
requiring records indicating the amount and type of refrigerant
recovered from each separate appliance but rather the total amount and
types recovered from all appliances disposed of in each calendar month.
As described in more detail below, this modification from the proposed
revision was made after consideration of public comments.
Comments in support of this proposed recordkeeping requirement
agreed with EPA's goal of improving the enforceability of the venting
prohibition. One commenter stated that EPA's rationale to improve
compliance with the venting prohibition and facilitate enforcement
against those who do vent is insufficient and not adequately supported
in the record. Another commenter believes that venting is not as
prevalent as EPA thinks it is and that to the extent that it does
occur, it is done by individuals who are not certified technicians.
EPA responds that the Agency has heard from people throughout the
HVAC/R industry that venting regularly happens in appliances with more
than 5 and less than 50 pounds of refrigerant. One commenter to this
rule who regularly addresses contractor and service technician groups
hears from them that the venting prohibition is widely disregarded. At
a recent meeting EPA attended with air-conditioning and refrigeration
contractors, an industry speaker asked attendees what percentage of
technicians recover refrigerant. The estimates individuals offered were
generally between 10 to 30 percent, with the caveat that recovery is
much more common in the refrigeration industry than the air-
conditioning industry. EPA also receives numerous tips each year of
someone cutting refrigerant lines to quickly and illegally dispose of
appliances of this size. This feedback indicates a likelihood that
venting regularly occurs.
At times, including in public fora such as the public meeting in
November 2014, stakeholders have requested that EPA increase
enforcement of the venting prohibition. At that meeting, some
stakeholders indicated that technicians will knowingly and illegally
vent refrigerant if they think EPA will not bring an enforcement
action. Multiple commenters urged the Agency to do a better job of
enforcing the venting prohibition. This request came from a broad cross
section of the air conditioning and refrigeration community including
refrigerant reclaimers, recycling and recovery equipment certifiers,
and appliance manufacturers and distributors. Some of these comments
stated that good actors who comply with the law are placed at a
competitive disadvantage by entities who can operate more cheaply by
skipping the required recovery practices and choose instead to
illegally vent refrigerant.
The Agency has recently brought successful cases against
individuals who have illegally vented refrigerant. However, the
availability of the records required under this provision would enhance
the Agency's ability to enforce the venting prohibition because these
records could be used to demonstrate whether or not refrigerant has
been recovered and sent for reclamation. If refrigerant cannot be
accounted for, a company or technician may not be able to show that
they complied with the venting prohibition.
Some commenters who objected to this proposal stated that EPA did
not provide sufficient justification and that EPA underestimated the
burden to technicians. EPA responds that it is reasonable to require
technicians and the companies employing technicians to maintain records
of the amount of refrigerant that they recover and send for reclamation
to enhance compliance with and enforceability of the venting
prohibition. There is a significant environmental benefit to ensuring
that ODS and HFC refrigerant are recovered from existing appliances of
this size at the time of disposal. Using EPA's Vintaging Model, EPA
estimated the number of appliances in this size category that are
disposed of annually,
[[Page 82312]]
the full charge of those appliances, and the type of refrigerant they
contain. EPA estimates that 7.3 million appliances of this size, with a
total charge of 27,300 MT of refrigerant, are disposed of annually.
This is equal to 960 ODP-weighted metric tons and 49.5
MMTCO2eq. This represents 45 percent of the total amount of
ODS and HFC refrigerants contained within all appliances from all size
categories that are disposed of annually.
EPA's benefits assessment for the proposed rule did not calculate
any additional emissions reductions because the existing regulations
already require recovery when appliances are disposed. However, in
practical terms, requiring a record from each disposal event may drive
more technicians to comply with the venting prohibition because the
recordkeeping requirement places extra emphasis on the prohibition and
on the risks of violating it. Even slight improvements to compliance
could produce substantial environmental benefits.
Another commenter stated that some IPR facilities may have hundreds
or even a thousand of these smaller 5-50 pound appliances and that
requiring additional tracking or recordkeeping would be unnecessary and
overly burdensome. Furthermore, the commenter continued, because
industry has the burden of proof that it is in compliance with the
venting prohibition, industry has established basic recordkeeping that
can meet the intent of this rule without requiring additional or
duplicative information. A couple of commenters similarly noted that it
is good business practice to recover refrigerant from such units prior
to disposal.
EPA responds that the incentive to illegally vent may be less if
the owner has hundreds of appliances or uses in-house technicians. In
that situation, it may be good business practice to recover refrigerant
from a system being disposed of because that refrigerant can be reused
in that owner's other appliances. The desire to fit more service calls
into a day is also perhaps less when using in-house personnel. However,
in cases where a technician is getting paid by the job, there is an
economic incentive to minimize the time spent at each job-site which
could include venting refrigerant. EPA disagrees that such facilities
will require burdensome new tracking and recordkeeping. While a
facility may have many appliances, the records that EPA is requiring in
this rule are only necessary once--upon disposal--and only a small
subset of the total number of appliances is likely to be disposed of in
a given year.
EPA has considered ways to minimize the burden to technicians in
light of commenters' concerns. EPA is modifying the final rule so as to
require records that are generated through normal operations in the
field. Therefore, EPA is removing the requirement to determine the
amount of refrigerant recovered from each appliance. Entities would not
be required to weigh cylinders or otherwise calculate how much
refrigerant they recovered at each and every site, which was the most
time consuming element of the proposed recordkeeping requirements.
Instead, EPA's goals can be achieved by requiring records of the amount
recovered in each calendar month. This way, recovery cylinders can be
weighed less frequently and at a centralized location or recovery
cylinders can simply be tallied if the amount of refrigerant in them is
known.
One commenter encouraged EPA to consider exempting residential
systems from the recordkeeping requirements due to the nature of their
servicing. EPA responds that this recordkeeping requirement does not
apply to regular servicing, only disposal, which occurs much less
frequently.
A couple of commenters requested clarification of who must maintain
records. One commenter did not support this requirement because they
believed it would require records be kept by homeowners. Another
commenter suggested that third-party collection sites not have
recordkeeping requirements so as to not discourage wholesalers and
storefronts from serving in the collection chain.
EPA responds that the recordkeeping requirements finalized for this
provision apply solely to the company employing the technician (or to
the technician, if operating independently) who is disposing of the
appliance in both commercial and residential settings. This could be
the owner or operator of the appliances or it could be a contractor who
is hired to dispose of the appliance. When that company transfers the
refrigerant for reclamation they may have to receive records from other
entities (such as reclaimers or third-party collection sites) but those
receiving refrigerant are not obligated to maintain any records
themselves. EPA is not requiring any recordkeeping by the owners of the
appliance unless the owner of the appliance and the employer of the
technician are the same entity.
One commenter suggested that EPA extend the proposed recordkeeping
requirements to those who collect at least 100 pounds of refrigerant
per year from small appliances. This commenter also suggested less
detailed records be kept in such instance, specifically (1) the
quantity of refrigerant recovered monthly, (2) the number of units
disposed of, and (3) the name of the certified reclaimer to whom they
transferred the recovered refrigerant. EPA disagrees that extending
this requirement to small appliances is necessary. Certification and
recordkeeping requirements currently exist for the disposal of small
appliances. These records are held by the final disposer, who is best
suited to maintain them. In addition, EPA does not require that small
appliances be evacuated by a certified technician when being disposed
of.
Two commenters suggested that EPA extend the recordkeeping
requirement to appliances containing more than 50 pounds as well. One
of the commenters was concerned that contractors who collect from both
smaller 5-50 pound and larger 50-plus pound appliances would have to
separate or otherwise distinguish between what was recovered from each
when transferring their refrigerant to a reclaimer. EPA finds that it
would not be necessary to distinguish between these two size
categories. A single record of all refrigerant transferred for
reclamation is sufficient because EPA is not requiring an accounting of
all recovered refrigerant as it moves through the market.
After consideration of these comments, EPA is requiring records
that are regularly generated by technicians or companies recovering
refrigerant while disposing of appliances as a practical way to improve
the Agency's ability to enforce the venting prohibition without
imposing an undue burden on regulated entities that are already
complying fully with the venting prohibition. To avoid imposing an
undue burden on good actors, especially out in the field where there
may already be pressure to cut corners, EPA is not finalizing the
proposed requirement that records be kept of how much refrigerant is
recovered from each appliance. Weighing or otherwise calculating the
amount of refrigerant recovered at each job site could increase burden
of these requirements by consuming additional time.
4. Clarifications and Edits for Readability
As proposed, EPA is moving the provisions that were found in Sec.
82.156 ``Required Practices'' in the prior rules into three separate
sections: Sec. 82.155 to address the safe disposal of small
appliances, MVACs, and MVAC-like
[[Page 82313]]
appliances; Sec. 82.157 to address appliance maintenance and leak
repair for appliances containing 50 or more pounds of refrigerant; and
Sec. 82.156 to address the proper evacuation of refrigerant from
appliances. These provisions tend to affect different stakeholders so
separating them into different sections will make the required
provisions easier to find.
F. Revisions to the Leak Repair Requirements in Sec. 82.157
1. Background
A central component of EPA's longstanding program to properly
manage ODS refrigerants is the requirement to repair leaking appliances
within 30 days of determining that a certain leak rate has been
exceeded. Owners and operators of appliances normally containing 50 or
more pounds of ODS refrigerant must repair their appliances if they
leak above a certain rate or take other actions to reduce the emissions
such as retrofitting, retiring, or mothballing the appliance. Under the
prior regulations, the leak rate at or above which action was required
was 35 percent for commercial refrigeration appliances and IPR and 15
percent for comfort cooling and other appliances. If the attempt to
repair failed to bring the appliance's leak rate below the applicable
leak rate within that time frame, the owner or operator must develop a
retrofit or retirement plan and implement it within one year of the
plan's date. Owners or operators also had the option of developing a
retrofit or retirement plan within thirty days of identifying that the
leak rate has been exceeded. Owners or operators of IPR or federally
owned appliances may have more than 30 days to complete repairs and
more than one year to retrofit appliances where certain conditions
applied (e.g., equipment located in areas subject to radiological
contamination, unavailability of necessary parts, and adherence to
local or state laws that may hinder immediate repairs). The full suite
of the prior requirements are found at Sec. 82.156(i).
EPA recognizes that refrigeration and air-conditioning equipment
often do leak. This is particularly likely for larger and more
complicated appliances like those subject to the subpart F leak repair
provisions. However, leaks from such appliances can be significantly
reduced. Multiple factors support this conclusion. Concrete evidence
that leaks can be significantly reduced include experience with the
GreenChill program, an EPA partnership designed to encourage
supermarkets to reduce emissions of refrigerants and transition to low-
GWP and low-charge refrigeration appliances; reports from facilities
regulated under California's Refrigerant Management Program; and
feedback from stakeholders prior to publishing the proposed rule. The
revised leak repair provisions in this action will reduce refrigerant
releases of ODS and non-exempt substitute refrigerants by ensuring
effective repairs and ongoing monitoring of leaking systems.
2. Restructuring and Edits for Readability
The regulatory text has been modified several times since EPA first
established the program in 1993. The regulation now contains numerous
cross-references to other provisions in Sec. 82.156(i), making the
requirements difficult to follow and in some places potentially leading
to differing interpretations. Many important provisions are not readily
apparent, such as the primary requirement that repairs must occur
within 30 days, which appears explicitly only at the end of the leak
repair requirements at Sec. 82.156(i)(9). Therefore, EPA has rewritten
the regulation and moved the provisions to a single new section of the
Code of Federal Regulations (CFR) to make it easier for stakeholders to
locate and understand the requirements.
EPA recognizes that changing the text so significantly may make
stakeholders who are familiar with the existing requirements wonder how
these revisions affect their current compliance monitoring systems and
protocols. EPA emphasizes that the Agency did not intend to alter the
substance of the requirements while restructuring except where
specified. EPA discusses the intended amendments to the requirements in
this section of the notice. In general, commenters were supportive of
EPA's efforts to rewrite and simplify the leak repair provisions.
To avoid both ambiguity and cumbersome language throughout, EPA
establishes from the outset in Sec. 82.157(a) that the provisions of
Sec. 82.157 apply to owners and operators of all appliances containing
50 or more pounds of refrigerant, unless otherwise specified. One
commenter stated that EPA should clarify throughout the rule whether
the owner/operator or the technician is responsible. EPA responds that
the final rule makes clearer that the owner or operator is responsible
for conducting the leak inspection or repairing the appliance even when
it is the technician who will be performing those actions. When a
provision applies to technicians or people servicing equipment, the
provision so specifies.
Multiple commenters requested that EPA define owner/operator and
one commenter requested that EPA clarify who is responsible if the
owner is different from the operator. EPA responds that the Agency is
not defining owner or operator because these terms are widely
understood in the public and regulated community. If the owner and the
operator are separate entities, both are responsible for complying with
the applicable leak repair provisions. EPA notes that the owner of the
system chooses the operator of the system, or passes that
responsibility to someone else (e.g., a tenant in a building may be
provided authority to operate an air conditioning system even though
that tenant does not own the building or the air conditioning system).
EPA does not want to hinder the ability of the owner and operator of
the system to make the decision as to who would be responsible for
complying with these requirements, and, therefore, the Agency has
maintained the existing language that places responsibility for such
compliance with requirements on both parties.
The existing regulations also inconsistently described the leak
repair requirements as applying to appliances with ``50 or more
pounds'' or ``more than 50 pounds'' of refrigerant. The proposed
revisions consistently use ``50 or more pounds of refrigerant.'' EPA
received a comment from CARB that the California regulations are based
on EPA's ``more than 50 pounds,'' but CARB stated they can address any
potential inconsistencies created by this revision. As such, EPA is
finalizing consistent use of the phrase ``50 or more pounds of
refrigerant'' in the revised regulations.
3. Extension to Substitute Refrigerants
EPA proposed to extend the leak repair provisions previously found
at Sec. 82.156(i) to appliances containing non-exempt substitute
refrigerants. EPA is finalizing this extension in the revised leak
repair regulations (now found at Sec. 82.157). As such, the other
provisions related to leak repair and maintenance finalized in this
rule (e.g., verification tests, reporting by chronic leakers, etc.)
apply to appliances containing ODS and non-exempt substitute
refrigerants as well. Consistent with discussions elsewhere in this
notice, EPA is not extending these requirements to appliances using
substitute refrigerants in a specific end-use for which the substitute
refrigerant used has been exempted from the venting prohibition. These
exemptions are listed in the regulations at Sec. 82.154(a)(1). For
example, these
[[Page 82314]]
requirements would not be extended to water in any application, or to
ammonia in commercial or industrial process refrigeration or in
absorption units.
Extending the leak repair requirements to non-exempt substitute
refrigerants will lead to significant environmental benefits because
these substances pose a threat to the environment when released. Like
ODS, HFCs and PFCs also have the ability to trap heat that would
otherwise be radiated from the Earth back to space. This ability gives
both HFCs and PFCs relatively high GWPs. The 100-year GWPs of saturated
HFCs used as refrigerants range from 124 (for HFC- 152a) to 14,800 (for
HFC-23), and the GWPs of PFCs used as refrigerants range from 7,390
(for PFC-14) and higher. HFC-134a, the most common individual HFC used
in air-conditioning and refrigeration equipment, has a GWP of 1,430.
See Section II.C.2 of this notice for further discussion related to the
environmental effects of greenhouse gases.
In determining whether to exempt HFC and PFC refrigerants from the
venting prohibition in 2004, EPA examined the potential effects of the
refrigerant from the moment of release to its breakdown in the
environment, considering possible effects on workers, building
occupants, and the environment. EPA concluded that the release of HFCs
and PFCs poses a threat to the environment due to their high GWPs. For
that reason, and because of a lack of regulation governing the release
of such refrigerants, EPA did not exempt the release of HFC or PFC
refrigerants from the statutory venting prohibition. Therefore,
knowingly venting or otherwise releasing into the environment of HFC
and PFC refrigerants during the maintenance, service, repair, or
disposal of appliances remains illegal. The venting prohibition focuses
on knowing venting or release during the maintenance, service, repair,
or disposal of appliances and thus does not account for all HFC (and
PFC) refrigerant emissions. For instance, in previous rules we have not
assumed that emissions of HFCs that occur due to appliance leaks
constitute knowing releases. However, as discussed elsewhere in this
rulemaking, EPA is broadening its interpretation of what is considered
a knowing release under section 608(c) for purposes of appliance leaks.
In addition, the requirements to calculate leak rates and monitor
leaking systems that EPA is finalizing in this action provide knowledge
to appliance owners and operators and thereby broaden the set of
refrigerant releases for which they would be liable for a knowing
release.
Consideration of Costs
Based on the evidence discussed later, the reported leak rate
performance of today's comfort cooling, commercial refrigeration, and
IPR appliances with full charges of 50 or more pounds argues for
lowering the leak rates. The evidence discussed later demonstrates that
the leak rates of 35 percent for IPR and commercial refrigeration and
15 percent for comfort cooling are considerably above the ``lowest
achievable level of emissions'' envisioned in CAA section 608(a)(3)(A).
While section 608(a)(3) does not require EPA to perform a cost-
benefit analysis to determine what leak rate(s) would constitute the
``lowest achievable level of emissions,'' in general, EPA has balanced
the benefits from reducing emissions of refrigerants with the costs of
these requirements. EPA has determined that the costs are reasonable
given the significant benefits that accrue (both private in the form of
cost savings and public in the form of improved health and
environmental protection from reduced GHG and ODS emissions).
Specifically, EPA reviewed data from the lowest-emitting equipment to
gauge technological feasibility and then reviewed other datasets, such
as CARB data and consent decree requirements, to determine a reasonable
set of requirements. EPA then assessed the costs and benefits
associated with extending the existing requirements to appliances using
substitute refrigerants. EPA also assessed the tighter requirements
applicable to appliances containing ODS or non-exempt substitute
refrigerants such as lower leak rates, the requirement to repair leaks
once the applicable leak rate is exceeded, the requirement to conduct
verification tests on all types of appliances, and periodic leak
inspections for appliances that had exceeded the leak rates.
Based on the comments received, EPA considered ways to reduce the
cost of these requirements, as compared to the proposal. These changes
are discussed in full later in this section and include: Limiting
periodic leak inspections to appliances that have exceeded the
applicable leak rate, rather than requiring all appliances to be
inspected; finalizing a leak rate for IPR of 30 percent rather than 20
percent; allowing greater flexibility for owners and operators to
determine which leaks to repair rather than requiring the repair of all
leaks; and modifying the proposed chronic leaker provision so that it
results in reporting to EPA rather than automatic retirement of the
appliance.
This rule also provides flexibility that will reduce the cost of
complying with the existing regulations. For comfort cooling and
commercial refrigeration appliances, EPA is allowing an extension to
the 30-day repair requirement if the arrival of a part is delayed,
recognizing that the short additional time needed for delivery of a
part can result in a nearer-term and less costly emission reduction
than a retrofit. EPA is also allowing an extension to implement a
retrofit or retirement for any appliance that transitions to a non-
exempt substitute refrigerant.
4. Leak Inspections
The prior regulations at Sec. 82.156(i) focused on actions an
appliance owner or operator must take after discovering an appliance
has a leak. EPA proposed to require annual or quarterly leak
inspections as a proactive maintenance practice depending on the type
and size of the appliance. More specifically, EPA proposed to require
that owners or operators of commercial refrigeration appliances or IPR
normally containing 500 or more pounds of refrigerant conduct quarterly
leak inspections of the appliance, including the appliance's
refrigerant circuit. Inspections would be annual for commercial
refrigeration appliances and IPR containing 50 pounds or more but less
than 500 pounds of refrigerant, as well as comfort cooling appliances
and other appliances normally containing 50 or more pounds of
refrigerant.
The purpose of the proposed leak inspection requirement was to
determine the location of refrigerant leaks. This proposal was designed
with Next Generation Compliance objectives in mind (see Section
II.D.3). The Agency anticipated that many appliance owners and
operators would take action earlier if leaks were identified because it
is in their financial interest to do so and would reduce emissions and
refrigerant costs. Repairing leaks earlier could also prevent that
appliance from being pulled into the proposed regulatory requirements
at Sec. 82.157 for exceeding the applicable leak rate. EPA also
proposed to allow owners or operators to forgo periodic leak
inspections if they installed and operated an automatic leak detection
system that continuously monitors the appliance for leaks.
Frequency of Leak Inspections. State regulatory agencies and
environmental organizations supported the proposed requirement to
conduct periodic leak inspections. Two such commenters suggested that
EPA require quarterly leak inspections for systems with 200
[[Page 82315]]
pounds or more to harmonize the leak inspection requirements with
California's Refrigerant Management Program. However, many other
commenters expressed strong opposition to mandatory quarterly or annual
leak inspections, asserting that requiring inspections of all
appliances imposes unnecessary costs, especially for systems that are
not leaking. Those commenters estimated the cost of an inspection for a
large supermarket could exceed $5,000. Another commenter stated that
companies do not need a regulatory requirement to inspect and maintain
their refrigeration equipment and that since EPA did not require repair
of leaks identified in a leak inspection for appliances that do not
exceed the applicable leak rate, there is not a reasonable relationship
between the proposed requirement and the goal of emissions reduction.
One commenter stated that leak inspections are unnecessary, at least
for chemical manufacturing, because temperatures and pressures must be
maintained within tight tolerances for reactions to proceed.
Furthermore, any changes in temperature and pressure would trigger an
alarm or shutdown the process.
Other commenters expressed qualified support for annual leak
inspections, especially if it is phased in, starting with larger
systems or if a company can provide evidence that they have not added
refrigerant to a system in over a year. Another commenter stated that
leak inspections should only be annual, unless the equipment exceeds
the applicable leak rate for that system. That commenter believes that
the inspections should return to being an annual requirement after the
leak rate has been reduced below the threshold for two years. One
commenter stated that the greatest value of a leak inspection is on a
system with a known leak.
Based on these comments relating to the expense and value of
conducting leak inspections on all appliances, EPA is finalizing the
leak inspection requirement only for appliances that have been found to
be above the applicable leak rate. EPA proposed to only require that
the leaks identified from a leak inspection be repaired when the
applicable leak rate is exceeded. EPA's proposal observed that the
costs of repairing all leaks when the leak rate is below the applicable
leak rate may be higher than the benefits, especially when the leak is
a series of small pinhole leaks and the leak rate is very low, as may
often be the case. As stated in the proposed rule, when the applicable
leak rate is exceeded, the benefits of repairing those leaks are
significant--both for the environment and for the owner/operator (in
decreased refrigerant replacement costs)--and do result in significant
savings, which supports repair of leaks. EPA appreciates the concern
raised by commenters who question the value of conducting leak
inspections on appliances that are known to not be leaking, or leaking
at a low rate that would not trigger a requirement for repair under the
regulations. Periodic leak inspections are a best practice within the
industry to reduce emissions of refrigerants and the Agency continues
to recommend periodic leak inspections for all appliances as even well-
maintained appliances might leak.\21\ EPA did not quantify any benefits
for systems that had a leak rate below the applicable leak rate because
the Agency did not propose that the leaks that were discovered in those
systems needed to be repaired. While requiring proactive leak
inspections would generally reduce leaks because companies would find
leaks and could repair them before the applicable leak rate was
exceeded, EPA is not finalizing the periodic leak inspections for all
appliances, as proposed. Many of the specific comments about timing of
leak inspections no longer apply because of this change. However, EPA
has reconsidered the cost of conducting a leak inspection, as discussed
further in Section VI of the preamble.
---------------------------------------------------------------------------
\21\ See GreenChill's Best Practices Guidelines: Commercial
Refrigeration Leak Prevention & Repairs, May 2011, available in the
docket for this rulemaking.
---------------------------------------------------------------------------
EPA is finalizing a requirement at Sec. 82.157(d)(1) to conduct a
leak inspection after discovering the leak rate had exceeded the
applicable leak rate. Thereafter, EPA is requiring episodic leak
inspections based on the full charge size and type of appliance on the
same schedule as in the proposed Sec. 82.157(b)(1)-(3), but in this
final rule EPA added a provision clarifying that this requirement ends
if the appliance remains below the applicable leak rate for a specific
time. More specifically, following a leak rate exceedance, EPA is
requiring quarterly leak inspections for IPR and commercial
refrigeration appliances containing 500 or more pounds of refrigerant
until there are four quarters in a row where the appliance has not
exceeded the applicable leak rate. For IPR and commercial refrigeration
appliances containing between 50 and 500 pounds of refrigerant, and for
all comfort cooling appliances or other remaining appliances normally
containing 50 or more pounds of refrigerant, EPA is requiring annual
leak inspections following a leak rate exceedance until the owner or
operator can demonstrate that the appliance has not exceeded the
applicable leak rate for one year. More frequent monitoring is
important for larger commercial refrigeration appliances and IPR
because those systems tend to have more leaks than comfort cooling
appliances and because the amount of refrigerant that would be lost in
a leak is generally greater for those systems.
In our view, and based on our review of comments, limiting
inspections to those appliances that are known to have leaked and
triggered the repair requirements appropriately tailors the leak
inspection requirement to those systems that are most likely to leak
and provides important information about whether the leak repairs have
held over the longer term. EPA is not finalizing the proposed revision
allowing for annual leak inspections when refrigerant has not been
added to the appliance for more than a year as EPA is not finalizing
the periodic leak inspection requirement for systems that are below the
applicable leak threshold. As discussed later, EPA is finalizing the
proposed revision allowing the use of automatic leak detection systems
in lieu of quarterly or annual leak inspections.
EPA proposed to establish a process that would allow less frequent
leak inspections for federally owned appliances that are located in
remote locations or are otherwise difficult to access for routine
maintenance. One commenter disagreed with the proposal to allow a
reduced inspection schedule for federally owned appliances. Other
commenters requested that EPA provide a similar exemption to privately
owned appliances.
Because EPA is not finalizing periodic leak inspections for
appliances below the applicable leak threshold, EPA is also not
finalizing the reduced leak inspection schedule for federally owned
appliances. EPA is requiring that federally owned equipment that has
leaked in excess of the applicable leak rate be subject to the same
periodic leak inspection schedule as privately owned equipment. The
concerns about burden raised by federal agencies during the development
of the proposal are addressed by removing the proposed requirement that
leak inspections be conducted on all appliances. The number of
appliances leaking above the final leak thresholds is less than 20
percent of the total number of installed appliances with charges of 50
pounds or greater.
Description of leak inspections. Many commenters requested
clarification
[[Page 82316]]
about the types of methods that can be used to conduct a leak
inspection. EPA responds to those comments in the section of this
notice that addresses comments on the proposed definitions. As
described there, the revised definition includes examples of methods
that may be appropriate for leak inspections.
EPA proposed that periodic leak inspections would not need to be
performed by certified technicians and took comment on that idea. Two
commenters agreed that leak inspections should not be required to be
conducted by certified technicians. Reasons stated for not requiring
the inspection to be done by a certified technician are that they are
more expensive than in-house personnel, they may be less familiar with
the appliance, and that the person doing the inspection will not
necessarily be performing activities that can only be performed by a
certified technician such as adding or removing refrigerant or making
any repairs to the appliance. Another commenter believes that leak
inspections should be performed by someone trained to fix leaks, and
thus that the persons performing leak inspections must be a certified
technician.
In this final rule, EPA is requiring that the required leak
inspections be performed by certified technicians. EPA is making this
change from the proposal for several reasons. First, required leak
inspections are now limited to appliances that are known to have been
leaking. It is now very likely that a technician will have to add
refrigerant or make additional repairs after the leak inspection. This
is certainly the case for the inspection triggered by discovering that
the leak rate exceeds the threshold. Second, because EPA is no longer
requiring the repair of all identified leaks, the person inspecting the
system must also be qualified to determine which leaks must be repaired
to bring the leak rate below the applicable level. Third, while
certified technicians may be more expensive to hire, the overall burden
of the leak inspection requirement is less since many fewer appliances
must be inspected than originally proposed. Under the proposal, all
appliances of a certain size would require leak inspections, which EPA
estimated to be approximately 1.5 million. Under the finalized
provisions, that number drops to approximately 282,000 appliances. EPA
has considered the comments about the cost of performing a leak
inspection and has updated the technical support document accordingly.
Finally, EPA is not specifying a single method but rather allowing the
person conducting the inspection to determine the method(s) that are
appropriate for that appliance. This technical judgment requires
someone trained in the methods of leak detection, which is more likely
to be the case for a certified technician.
Many commenters requested clarification on what portions of an
appliance are subject to a leak inspection. The proposed regulatory
text was silent on this issue but the notice of proposed rulemaking
discussed inspecting visible components and the proposed definition of
leak inspection included an examination of ``all visible components of
an appliance.'' The proposal did not define ``visible'' or address the
treatment of components that are only visible if intermediary steps are
taken (e.g., clearing ice or elevating monitoring personnel).
Commenters noted that refrigerant lines may be insulated and thus the
piping is not visible and that lines may run along the ceiling of a
store and are not observable or are difficult to access. One commenter
proposed a definition that would limit inspections to areas that are
visible and accessible without the use of equipment. The commenter
states that the vast majority of components in commercial
refrigeration, and those most prone to refrigerant leakage, are
accessible directly from floor or roof level. One commenter requested
that EPA define visible components as those that are readily accessible
to be viewed and accessed during normal preventative maintenance
activities for the appliance. One commenter suggested that the leak
inspection be ``consistent with good industry practice.'' Another
commenter expressed concern that requiring the inspection of all
visible components may necessitate the appliance be shut down.
Another commenter requested specific exceptions for components that
are difficult to monitor, insulated, unsafe to monitor, or otherwise
not accessible. Consistent with other leak detection and repair
programs for New Source Performance Standards, Subparts VV and VVa,
which relates to equipment leaks of VOC in synthetic organic chemicals
manufacturing, the commenter suggests that the following sources be
exempt from inspection: (1) Components that require monitoring
personnel to be elevated more than 2 meters above a support surface;
(2) components that are insulated; (3) components that are determined
to be un-safe to monitor as determined by site personnel; (4)
components that are under ``ice'' that forms on the outside of
equipment. A couple of commenters also expressed concern about
requiring leak inspections on equipment that cannot be accessed due to
radiological concerns.
EPA appreciates the difficulties associated with inspecting the
entirety of an appliance, which these comments illustrate. EPA proposed
a definition of leak inspection that includes ``all visible
components.'' EPA is modifying that proposed definition to remove the
reference to ``all visible components.'' Also, in light of the points
raised in the comments, EPA is clarifying in the final rule that a leak
inspection must be conducted on all visible and accessible components
of an appliance, with some exceptions. EPA did not propose any
exceptions but did state in the notice of proposed rulemaking that the
inspection should occur on all visible and accessible components of an
appliance. The exceptions finalized in this rulemaking clarify what is
not considered visible or accessible: 1) Where components are
insulated, under ice that has formed on the outside of equipment,
underground, behind walls, or are otherwise inaccessible; (2) where
personnel must be elevated more than 2 meters above a support surface;
or (3) where components are unsafe to inspect, as determined by site
personnel. This clarification takes into consideration risks to the
person conducting the inspection. The Agency does not expect that an
appliance be shut down in order to fulfill the obligation of inspecting
all visible components.
Automatic Leak Detection. EPA proposed to not require periodic leak
inspections if owners or operators install and operate an automatic
leak detection system that continuously monitors the appliance for
leaks. Although EPA is removing the periodic leak inspection
requirements for many appliances, EPA will continue to allow the use of
automatic leak detection equipment to continuously monitor whole
appliances or portions of appliances in lieu of the required periodic
inspections for that appliance or that portion of the appliance. Use of
such equipment can minimize releases of refrigerant because it
discovers leaks sooner than a quarterly or annual leak inspection can.
Using their 2014 Refrigerant Management Program (RMP) data, CARB
commented that they found that leaking systems using automatic leak
detection had a 25 percent lower annual leak rate than those without.
This comment provides further support for including this option to use
automatic leak detection equipment to continuously monitor an appliance
or portion of an appliance in the final rule.
[[Page 82317]]
A few commenters encouraged EPA to require automatic leak detection
equipment on appliances with more than 2,000 pounds of refrigerant to
harmonize EPA's requirements with California's. EPA responds that while
this rule does not impose requirements that are inconsistent with
CARB's program, EPA has not included all of CARB's requirements in this
rule. EPA is requiring that automatic leak detection systems meet the
same level of detection (10 parts per million of vapor) and
notification thresholds (100 parts per million of vapor, a loss of 50
pounds of refrigerant, or a loss of 10 percent of the full charge) as
CARB requires. EPA knows that such equipment is already available on
the market and capable of meeting those standards, which allows
companies wishing to install automatic leak detection equipment to do
so sooner than if EPA established different standards in this rule. It
also means that installed equipment that meets California's
requirements will meet EPA's requirements. EPA disagrees, as discussed
later, with the comment suggesting it require the use of automatic leak
detection equipment.
Some commenters were opposed to requiring automatic leak detection.
One such commenter stated that it does not work well outdoors and that
it may be hazardous to enclose a system to facilitate leak detection.
It can also be expensive and EPA did not estimate the costs of
requiring it. One nuclear power producer commented that any
modifications to nuclear generating stations must undergo extensive
engineering and risk review processes. This argues against requiring
the installation of monitoring equipment. Another commenter stated that
it has not been able to identify any reliable information confirming
that such automatic leak detection devices are available, cost-
effective, and capable of satisfying EPA's requirements.
EPA responds that the Agency is not requiring the use of automatic
leak detection equipment in this final rule. Rather, this is an option
that an owner or operator can choose to pursue in lieu of conducting
periodic leak inspections. EPA agrees that automatic leak detection
equipment may not be appropriate for all systems, and the Agency is not
suggesting that components be enclosed in order to allow for automatic
leak detection equipment where it would be hazardous to do so. The
decision to install such equipment is up to the owner/operator. With
regard to availability, EPA responds that California's existing
requirements for use of such systems have been in place since 2011 and
include the same standards as those EPA is finalizing in this rule, so
equipment meeting these requirements is already available and in use.
EPA encourages anyone interested in using automatic leak detection to
consult entities in California regarding the availability and
performance of such equipment. Another commenter notes that electronic
leak detection equipment is currently installed in thousands of
supermarkets, further supporting the idea that such equipment is
available and in use.
Many commenters supported automatic leak detection equipment in
lieu of periodic leak inspections but were concerned that the systems
they currently have installed do not meet the requirements of the
proposed rule because the entire refrigeration system is not within the
building envelope. EPA proposed that automatic leak detection equipment
systems that directly detect the presence of a refrigerant in air could
only be used where the entire appliance or the compressor, evaporator,
condenser, or other component with a high potential to leak is located
inside an enclosed building or structure. Multiple commenters requested
that EPA still allow the option of using automatic leak detection for
those components that are not outdoors. The outside components would
then be the only portion of the system that would be subject to
periodic inspections. EPA agrees that automatic leak detection
equipment should be allowed for enclosed components even if only
portions of an appliance are enclosed and the proposed rule was
intended to cover that situation. EPA has revised the final rule to
more clearly allow for this and to clarify that in such situations, the
automatic leak detection equipment would only be used to monitor
components located in an enclosed building or structure but the other
components would continue to be subject to any applicable leak
inspection requirements.
One commenter encouraged EPA to require that the leak detection
system be certified. There are third party systems on the market that
claim to check charges, but the commenter believes some may be
inaccurate. The commenter recommends referencing ASHRAE 207P, which
will allow for verification of the charge checking systems. EPA
responds that the referenced ASHRAE standard is still under development
and we are unaware of any certification programs that exist or that are
planned to reference that standard once finalized. Requiring
certifications for leak detection systems is therefore not appropriate
at this time. EPA is finalizing the proposal to require that the owner
or operator calibrate the automatic leak detection system annually and
keep records documenting the calibration.
5. Lowering Leak Rates
The leak rate is the rate at which an appliance is losing
refrigerant, measured between refrigerant charges. If the leak rate for
an appliance is above a specified threshold, the regulatory revisions
finalized in this rule require certain actions, such as leak repair,
from the owner/operator.
EPA is lowering the leak rates for IPR, commercial refrigeration,
and comfort cooling and other appliances containing ODS refrigerants
and is establishing those same leak rates for appliances using non-
exempt substitute refrigerants. EPA is lowering the leak rates to 30
percent (from 35 percent) for IPR, 20 percent (from 35 percent) for
commercial refrigeration appliances and 10 percent (from 15 percent)
for comfort cooling and all other appliances with a full charge of 50
pounds or more of ODS or non-exempt substitute refrigerant. For the
reasons discussed below, EPA is finalizing a higher leak rate for IPR
than proposed while finalizing the same rates as proposed for
commercial refrigeration and comfort cooling. In making this decision,
EPA has assessed the compliance costs, cost savings, and environmental
benefits and has found that the aggregated costs are reasonable, and
that lowering leak rates will result in fewer emissions of both ODS and
non-exempt substitute refrigerants.
EPA reviewed data submitted under California's RMP, the South Coast
Air Quality Management District (SCAQMD), GreenChill partners, consent
decrees for both commercial refrigeration and IPR for companies found
to be in violation of subpart F regulations, EPA's Vintaging Model,
conversations with potentially affected stakeholders, and comments on
this and past proposed rules. See the technical support document
Analysis of the Economic Impact and Benefits of Final Revisions to the
National Recycling and Emission Reduction Program for a complete
discussion. EPA presents here background on two data sources (CARB and
SCAQMD) that EPA relied on for multiple types of appliances and then
discusses appliance-specific data separately.
California's RMP requires that owners or operators of any appliance
with more than 50 pounds of ODS or HFC refrigerant repair leaks,
conduct leak inspections or install automatic leak detection equipment,
and report their
[[Page 82318]]
refrigerant usage and repairs.\22\ In addition, any facility with a
refrigeration appliance containing more than 50 pounds of refrigerant
must report all service records annually to California. CARB has
categorized facilities based on the facility's largest appliance.
Facilities that have at least one appliance with a full charge of 2,000
pounds or more (classified as ``large'' facilities under the RMP) began
reporting in 2012 (for 2011 service records). These large facilities
must submit service records for any appliance that has a full charge
greater than 50 pounds. ``Medium'' facilities have at least one
appliance with a full charge of 200 or more pounds but less than 2,000
pounds and they started reporting in 2014. ``Small'' facilities have at
least one appliance between 50 and 200 pounds and will have begun
reporting in 2016. California's reporting program provides insight into
the use and emissions of ODS and substitute refrigerants from
refrigeration appliances in the state, across a broad range of sectors
that use refrigeration appliances. For the proposed rule, EPA reviewed
the 2013 data, the most recent dataset available at that time, which
contained information from 11,166 appliances at large and medium
facilities. EPA has subsequently reviewed the 2014 data, containing
data on 12,605 appliances, and found it to be substantially similar. A
series of charts showing the aggregated California data has been
included in the technical support document. EPA has analyzed these data
in developing the revised leak rates for IPR, commercial refrigeration,
and comfort cooling appliances.
---------------------------------------------------------------------------
\22\ Among other requirements, the RMP establishes leak repair
requirements for appliances with more than 50 pounds of refrigerant.
More detail on the RMP is provided in the technical support document
in the docket titled Analysis of the Economic Impact and Benefits of
Final Revisions to the National Recycling and Emission Reduction
Program and online at www.arb.ca.gov/stoprefrigerantleaks.
---------------------------------------------------------------------------
California's South Coast Air Quality Management District is an air
pollution control agency that services the areas of Orange County and
the urban portions of Los Angeles, Riverside, and San Bernardino
counties, which contained approximately half of the population of
California at that time. SCAQMD had issued Rule 1415 to reduce
emissions of ozone-depleting refrigerants from stationary refrigeration
and air-conditioning systems. The rule required any person within
SCAQMD's jurisdiction who owns or operates a refrigeration system to
minimize refrigerant leakage. A refrigeration system is defined for the
purposes of that rule as ``any non-vehicular equipment used for cooling
or freezing, which holds more than 50 pounds of any combination of
class I and/or class II refrigerant, including, but not limited to,
refrigerators, freezers, or air-conditioning equipment or systems.''
Under Rule 1415, SCAQMD collected the following information every
two years from owners or operators of such refrigeration systems:
Number of refrigeration systems in operation; type of refrigerant in
each refrigeration system; amount of refrigerant in each refrigeration
system; date of the last annual audit or maintenance performed for each
refrigeration system; and the amount of additional refrigerant charged
every year. For the purposes of Rule 1415, additional refrigerant
charge is defined as the quantity of refrigerant charged to a
refrigeration system in order to bring the system to a full capacity
charge and replace refrigerant that has leaked. This reporting
requirement has now been replaced by the statewide RMP reporting.
EPA analyzed the SCAQMD data on ODS-containing appliances for the
proposed 2010 Leak Repair Rule. The analysis prepared for that rule can
also be found in the docket for today's rulemaking. The dataset
contains information on over 4,750 appliances from 2004 and 2005 with
ODS refrigerant charges greater than 50 pounds. The data included
refrigeration and air-conditioning appliances that meet EPA's
definitions of IPR (e.g., food processing industry, pharmaceutical
manufacturing), commercial refrigeration (e.g., refrigerated
warehouses, supermarkets, retail box stores), and comfort cooling
(e.g., office buildings, universities, hospitals) from businesses of
all sizes. EPA has considered the previous analysis of those data in
developing the revised leak rates for IPR, commercial refrigeration,
and comfort cooling appliances in this final rule.
i. Industrial Process Refrigeration
In the proposed rule, EPA discussed reducing the leak rate for IPR
and commercial refrigeration from 35 percent to 20 percent. EPA
specifically sought comments on whether a 20 percent leak rate was
appropriate, or whether a leak rate higher than 35 percent or as low as
10 or 15 percent would be appropriate. After considering the comments
received and upon further analysis of the CARB data, EPA is finalizing
a leak rate of 30 percent.
Some commenters supported the lower leak rates noting that real-
world experience shows that the lower leak thresholds are technically
and practically achievable. Some industry members encouraged EPA to
explore the feasibility of further lowering rates for IPR in the
future, consistent with improved and available industry best practices.
Other commenters stated that data from GreenChill and consent decrees
are not representative of IPR facilities. One commenter also stated
that CARB data do not support that a 20 percent threshold is achievable
because one third of the reporting facilities are not achieving such
performance. As a result, the commenter stated that EPA has not shown
that lowering the leak rate for IPR from 35 to 20 percent is necessary
nor economically or practically feasible.
Some commenters suggested EPA distinguish between old and new
equipment. One commenter noted that existing IPR equipment can meet the
35 percent leak rate but not all could achieve the 20 percent leak
rate. Thus, the proposed leak rate would strand significant investment
in custom-designed refrigeration process equipment. Another commenter
stated that older IPR facilities were designed when refrigerant
tightness was not a critical design element. Facilities have been
upgraded and maintained to achieve 35 percent leak rates but further
upgrades and repairs to bring them to a lower rate would be costly if
not impossible. The commenter also stated that it would not be cost
effective since many are near the end of their useful lives. A few
commenters suggested that EPA follow the 1998 proposal and allow for
the 35 percent rate if the appliance meets all of the following
criteria: (1) The refrigeration system is custom-built; (2) the
refrigeration system has an open-drive compressor; (3) the
refrigeration system was built in 1992 or before; and (4) the system is
direct-expansion (contains a single, primary refrigerant loop). Another
commenter recommended keeping the leak rate at 35 percent for systems
using substitute refrigerants, stating that companies that retrofitted
from ODS to HFC refrigerants should be recognized for that prior
environmental advancement.
In response to the comment that some of the data are not
representative of IPR facilities, EPA responds that the Technical
Support Document for the proposal did distinguish between IPR and
commercial refrigeration. EPA did not use GreenChill's commercial
refrigeration data or consent decrees for commercial refrigeration as a
basis for the proposal on IPR. In the final Technical Support Document,
as well as the discussion that immediately follows, EPA has further
separated out the analysis for IPR.
[[Page 82319]]
After considering these comments and further reviewing the CARB
data, EPA is finalizing a leak rate of 30 percent for IPR, rather than
20 percent as proposed. The potential benefits of lowering the leak
rate to 20 percent are small in relation to the potential costs
incurred by those small number of facilities that could be affected.
EPA's model, informed by the 2013 CARB data, indicates that 92
percent of IPR appliances have leak rates below 30 percent. Almost 10
percent of ODS-containing appliances would trigger the leak repair
requirements if the leak rate were lowered from 35 to 20 percent, as
proposed. However, if the leak rate is lowered from 35 to 30 percent
only 0.6 percent more ODS-containing IPR appliances would trigger the
leak repair requirements.
Viewed another way, using the California data as a proxy for the
entire United States' IPR systems, the proposed 20 percent leak rate
could affect up to 9 percent of all IPR appliances (though only a small
subset of IPR systems above 20 percent using ODS refrigerant would be
newly affected because they were already subject to the 35 percent leak
rate). Appliances that leaked more than 20 percent are responsible for
86 percent of emissions in the CARB data. Changing the leak rate
threshold to 30 percent, as EPA is finalizing in this rule, would
affect 7 percent of all IPR appliances and an even smaller subset of
ODS-containing equipment (only 0.6 percent). In the CARB records,
appliances leaking more than 30 percent are responsible for 75 percent
of emissions.
EPA's review of the 2004 and 2005 data submitted to the SCAQMD from
349 IPR facilities also indicate that 81 percent of ODS-containing IPR
appliances had leak rates below 30 percent. Slightly less than 5
percent of ODS-containing appliances would trigger the leak repair
requirements if the leak rate was lowered from 35 to 20 percent, as
proposed. In this final rule, only 1.5 percent of ODS-containing
appliances would trigger the leak repair requirements if the leak rate
was lowered from 35 to 30 percent. However, by extending the leak
repair requirements to IPR appliances containing non-exempt substitute
refrigerants, a 30 percent leak rate would also trigger all IPR
facilities using non-exempt substitute refrigerants above that
threshold, not just the incremental difference of facilities operating
between 30 and 35 percent.
EPA calculates leak inspection and repair costs of a 20 percent
leak rate for IPR to be $7.0 million, with annual emissions reductions
equal to 0.63 MMTCO2eq and 8.0 ODP tons. EPA calculates the
leak inspection and repair compliance costs of a 30 percent leak rate
for IPR to be $5.5 million, with annual emissions reductions equal to
0.44 MMTCO2eq and 5.4 ODP tons. Finally, EPA analyzed
retaining the current 35 percent leak rate for IPR, as applied to IPR
using substitute refrigerants. In that scenario, the leak inspection
and repair costs would be $5.1 million, with annual emissions
reductions equal to 0.26 MMTCO2eq and 0 ODP tons. Lowering
the leak rate from 35 to 30 percent provides significantly more
environmental benefits, including reductions in emissions of ozone-
depleting substances, for the costs. Lowering the leak rate further
provides diminishing returns.
EPA recognizes that some IPR transitioned to HFCs from ODS
refrigerants. This may have been an environmental decision for some,
but other commenters stated that this was done to avoid being covered
by the subpart F regulations. For whatever reasons, these facilities
transitioned to a substitute refrigerant and therefore were no longer
required to maintain a leak rate below 35 percent. EPA's analysis
described above indicate that that a majority of the new IPR equipment
affected by the rule will be those using substitute refrigerants. At a
30 percent leak rate, EPA estimates that there will be 492 newly
affected systems containing ODS refrigerant but 5,938 systems
containing HFC refrigerants.
While the number of affected IPR facilities may be small (EPA
estimates there are 1.5 million appliances with a charge size of at
least 50 pounds of an ODS or non-exempt substitute refrigerant), the
challenges faced by IPR facilities to upgrade or improve their system
are more substantial that those faced by other appliance types. In
general, leak rates are highest for IPR systems for a number of
factors. First, such appliances are generally custom-built and
assembled at the site where they are used rather than in a factory
where standard manufacturing practices can be put in place to reduce
leaks. Appliances used in IPR are custom-designed for a wide spectrum
of processes and facilities, including applications such as flash
freezers aboard commercial fishing vessels to cooling processes used in
the manufacture of pharmaceuticals. This results in the sector having
an extraordinarily broad range of equipment configurations and designs.
Custom designed equipment may also present more challenges to original
equipment manufacturers who wish to systematically implement leak
reduction technologies. Second, these appliances generally use a long,
single refrigerant loop for cooling that is not enclosed within a piece
of equipment. This tends to raise average leak rates, particularly when
the refrigerant loop flows through inaccessible spaces, such as
underneath floors, or when used in challenging climates and operating
conditions. Third, these appliances are often integrated into
production plants or other applications and typically operate
continuously. This need for continuous operation can make repairing
certain leaks more difficult and costly, possibly requiring
manufacturing processes to be shut down and long lead times. Multiple
commenters agreed with and provided comments supporting EPA's
assessment that IPR facilities can be leakier and more challenging to
repair than commercial refrigeration and comfort cooling appliances.
In response to comments requesting different leak rates for old and
new appliances, EPA is not distinguishing between old and new
appliances in the regulations for the following reasons. First, CARB
data indicate that older IPR equipment is not necessarily leakier than
newer IPR equipment. While newer systems can generally be designed with
leak tightness in mind, EPA has also found that the quality of the
construction and the operation and maintenance of the appliance plays a
larger role in whether the appliance leaks than the age of the
equipment per se. Leakage can be reduced even on older equipment by
taking appropriate measures. Second, in EPA's experience with the HCFC
phaseout, it has been challenging in some circumstances for owners and
operators to determine whether an appliance is existing or new.
For clarity and to facilitate compliance, and consistent with the
proposal, EPA is not finalizing a distinction between old and new IPR
appliances in the leak thresholds finalized in this rulemaking. In
response to the commenters encouraging EPA to explore the feasibility
of further lowering IPR rates in the future, EPA will take this under
advisement for future analyses and such a future analysis may include
the age of the facility and refrigeration technology used. Further
gradation of the IPR category is not necessary at this time.
ii. Commercial Refrigeration Appliances
EPA proposed to lower the leak rate for commercial refrigeration
appliances from 35 percent to 20 percent. Based on the data analysis
discussed in this
[[Page 82320]]
section and comments, EPA is finalizing that rate as proposed.
First, EPA reviewed data from GreenChill, an EPA partnership with
food retailers to reduce refrigerant emissions and decrease their
impact on the ozone layer and climate change. Established in 2007, this
partnership has 27 member companies comprising almost 30 percent of all
supermarkets in the United States. GreenChill works to help food
retailers voluntarily (1) transition to environmentally friendlier
refrigerants; (2) lower refrigerant charge sizes; (3) eliminate leaks;
and (4) adopt green refrigeration technologies and best environmental
practices. One of the GreenChill partnership's programs that helps food
retailers reduce their refrigerant emissions is the Food Retailer
Corporate Emissions Reduction Program. Under this program, partners
report their corporate-wide average leak rate for all refrigerants. A
corporate-wide average leak rate is the sum of all refrigerant
additions in a given time period for all of the commercial
refrigeration appliances owned by a corporate entity, divided by the
full charge for all of the commercial refrigeration appliances owned by
that same corporate entity during that time period.
Between 2007 and 2014, the corporate-wide average leak rate for all
reporting GreenChill partners remained within a relatively narrow range
of between 12.6 percent and 13.8 percent. Remarkably, when new partners
joined, the reported corporate-wide average leak rate across all
partners remained level. Several supermarket chains in the GreenChill
program, including some having hundreds of stores, have consistently
reported a corporate-wide leak rate below 10 percent. These data
support the conclusion that leak rates in commercial refrigeration
appliances can be considerably lower than 35 percent and that a 20
percent leak rate is reasonable.
Some commenters found GreenChill data unpersuasive because they are
self-reported and unverified and because they represent the average
performance of multiple appliances rather than the performance of
individual systems. Another commenter stated that GreenChill data are
not representative of the supermarket industry as a whole and do not
consider the capabilities of independent operators or small businesses.
EPA disagrees with the comments regarding the use of GreenChill
data. It is appropriate to use the GreenChill data to inform EPA's
consideration of achievable leak rates for commercial refrigeration.
The average performance of multiple appliances is relevant to
understanding how well individual appliances, on average, perform. This
dataset represents almost a third of the supermarket industry,
including a few smaller independent operators, over multiple years and
locations across the United States. Even if the data were biased
towards larger chains and organizations that have proactively sought to
reduce their emissions below the prior regulatory rate of 35 percent,
these data give an indication of what is achievable when companies seek
to reduce leak rates. Further, these data demonstrate that leak rates
well below 20 percent are not just achievable but may be consistently
maintained. A leak rate is not inherent to a particular piece of
equipment but rather includes factors such as how that appliance is
operated and maintained.
One commenter representing the supermarket industry supported
lowering the leak rate threshold but stated that 20 percent may be
burdensome for small businesses and independent retailers. Other
commenters in the supermarket industry supported the proposed 20
percent leak rate and one stated that they currently meet that rate for
both ODS and HFC equipment. CARB submitted comments suggesting that EPA
lower the leak rate to 10 percent for commercial refrigeration, or
totally eliminate the threshold. Based on their 2014 RMP data, lowering
the threshold to 10 percent would raise the number of affected systems
in California from 5,500 to 6,342 (out of more than approximately
20,000 systems) while reducing greenhouse gas emissions by 0.11
MMTCO2e. Another commenter urged EPA to establish a leak
rate of 10 percent for new commercial refrigeration to incentivize
improved design, installation, and maintenance. The commenter refers to
the GreenChill program at least 125 stores currently certified as
Silver or above, and with Platinum certified stores achieving leak
rates below 5 percent and to a supermarket chain in the UK that has a
corporate-wide leak rate of 7.1 percent in 2013.
EPA responds that the average leak rate across all GreenChill
commercial refrigeration appliances does not rise appreciably when new
companies joined the partnership, which indicates that companies
operating outside of the GreenChill partnership are operating with leak
rates well below 35 percent.\23\ EPA's standard presumption, based on
CARB data, is that the average leak rate for all commercial
refrigeration is 25 percent. That some commenters say they operate
their commercial refrigeration with leak rates below 20 percent for
both ODS and HFC equipment is further support that private incentives
drive lower leak rates and that a 20 percent rate is clearly
achievable.
---------------------------------------------------------------------------
\23\ See the document GreenChill Partnership's 2014 Data:
Benchmarks, Results, and Trends in the docket.
---------------------------------------------------------------------------
Based on data in the record, EPA does not agree that a 10 percent
leak rate would be appropriate for commercial refrigeration. GreenChill
partners have lower leak rates than the industry average, yet the
average rate among all commercial refrigeration appliances in
GreenChill is around 13 percent. There are only nine supermarkets that
have achieved the Platinum level certification. EPA therefore does not
believe that 10 percent is currently regularly achievable industry-
wide. EPA also appreciates the concept raised by the commenter that
establishing lower leak rates for future appliances could be a way to
encourage innovation. EPA did request comment on whether there are
other regulatory incentives that could provide a basis to go with a
leak rate lower than 20 percent and establishing a target rate to
achieve in the future is an intriguing concept. EPA will take this
comment under advisement. However, in today's final rule EPA is basing
the revised leak rates on what appliances are currently able to
regularly achieve.
The data submitted to the SCAQMD from 1,722 commercial
refrigeration appliances indicate that 77 percent of ODS-containing
comfort cooling appliances had leak rates below 20 percent. Only 8
percent of ODS-containing appliances would trigger the leak repair
requirements if the leak rate was lowered from 35 to 20 percent. In
2010, when EPA analyzed the data, EPA found that the SCAQMD leak repair
data for commercial refrigeration appliances was consistent with EPA's
analysis of the commercial refrigeration sector.
EPA has also reviewed how companies agreed to manage refrigerants
through recent consent decrees with the Agency. In consent decrees with
Safeway and Costco, the two companies agreed to bring their corporate-
wide leak rates from about 25 percent to 18 and 19 percent,
respectively. In a recent consent decree with Trader Joe's, the company
agreed to achieve and maintain an annual corporate-wide average leak
rate of 12.1 percent through 2019. One commenter was unpersuaded by the
use of consent decrees because they are aspirational and do not reflect
actual operation. EPA agrees that the corporate-wide leak rates to be
obtained under these consent decrees are not data
[[Page 82321]]
of actual operations, per se, but they are more than merely
aspirational. Consent decrees are legally binding and the companies
would not have committed to them if they thought they were
unachievable. These consent decrees provide additional support for the
proposition that a 20 percent leak rate for commercial refrigeration is
reasonably achievable. These consent decrees are available in the
docket.
iii. Comfort Cooling and Other Appliances
EPA proposed to lower the leak rate for comfort cooling appliances
and all other refrigeration appliances normally containing 50 pounds or
more of refrigerant that do not fit into the commercial refrigeration
or IPR categories from 15 percent to 10 percent. Based on the data
analysis discussed in this section and comments, EPA is finalizing that
rate as proposed.
Some commenters recommended keeping the leak rate at 15 percent
because some older systems may not be able to achieve a lower leak
rate. These commenters stated that large chillers from the 1990s have a
leak rate of 8 to 10 percent due to the seal lubrication design and
that as chillers age, the leak rate increases. They asserted EPA should
therefore consider the equipment's date of manufacture, the compressor
configuration, and whether the equipment is custom built. Another
commenter recommended a 5 percent leak rate for comfort cooling and
cited multiple data sources. This commenter pointed to sources of data
showing a 0.5 percent leak rate for HCFC-123 chillers, as well as a
2009 CARB analysis showing a leak rate of 1 percent and the 2005 IPCC/
TEAP Special Report which shows average annual leak rates for best
practice in large commercial air-conditioning to be 0.5 percent.
Another commenter indicated support for the 10 percent leak rate and
noted that the threshold could be lowered further without creating
undue burden, but did not provide any technical data concerning average
leak rates.
EPA responds that the Agency does consider factors such as the date
of manufacture and the compressor configuration for establishing a leak
rate applicable to all comfort cooling appliances. Since as far back as
1998, EPA found that comfort cooling appliances leaked less than five
percent per year, with many new comfort cooling appliances leaking
around two or even one percent per year. The highest leak rates
reported from new equipment back in 1998 was high pressure chillers
with open-drive compressors with leak rates ranging from four to seven
percent. (63 FR 32066). This assessment continues to be valid based on
industry feedback on EPA's Vintaging Model. On the other side of the
spectrum, the ultralow leak rates (e.g., 1 percent or lower) cited by
the other commenter are generally best-practice leak rates or average
leaks rates across new or low-pressure chillers and do not necessarily
represent the full range of chillers, by type and age, that are subject
to these regulations. The HCFC-123 chillers cited by the commenter
operate at a lower pressure than the other systems and thus might not
be representative of achievable leak rates for HFC and other HCFC
equipment which operate under higher pressures.
A few commenters stated that EPA lacks definitive data on typical
and economically achievable leak rates for comfort cooling appliances.
These commenters asserted that the CARB and GreenChill data presented
in the proposed rule are primarily related to commercial refrigeration
and IPR, and that SCAQMD's data is not nationally representative
because those appliances have been subject to leak regulations since
1991.
EPA responds that the Agency has analyzed average leak rates
specifically of comfort cooling appliances as reported to SCAQMD and
CARB, and as estimated in the Vintaging Model. As reflected in this
analysis, these three sources indicate that most comfort cooling
appliances can regularly achieve an annual leak rate of 10 percent.
This memo also cites other industry estimates of leak rates in comfort
cooling appliances. The majority of these estimates range between 2 and
5 percent with three of the fourteen estimates estimating leak rates
above 10 percent.
The data submitted to the SCAQMD from 2,700 comfort cooling
appliances indicate that 87 percent of ODS-containing comfort cooling
appliances had leak rates below 10 percent. Only 1.5 percent of ODS-
containing appliances would trigger the leak repair requirements if the
leak rate was lowered from 15 to 10 percent.
EPA agrees that appliances in California or in the SCAQMD may have
lower leak rates than appliances nationally, given the refrigerant
management regulations that have existed in the state for many years.
EPA therefore compared California data with the national assumptions in
the Vintaging Model and found that the two correlate closely. The
Vintaging Model is updated frequently with data supplied by refrigerant
industry stakeholders. Therefore, any difference is not likely to be
significant. This comparison is found in the final technical support
document in the docket.
Commenters also stated that previous actions are leading the
recovery of the ozone layer. These commenters stated that reducing the
leak rate as proposed will not contribute to the recovery of the ozone
layer and thus EPA cannot justify the burden on owners and operators of
such equipment. EPA anticipates that this action will contribute to the
recovery of the ozone layer and has calculated a reduction in ODP-
weighted emissions of 114 ODP tons. However, section 608 does not
require EPA to quantify the impact of this action on the ozone layer.
To the contrary, section 608(a) directs EPA to establish regulations
that reduce the use and emissions of ODS to the lowest achievable
level, without requiring separate evaluation of how each such reduction
would affect the recovery of the stratospheric ozone layer. Individual
actions such as reducing emissions from comfort cooling appliances fit
into the broader approach to ozone layer protection reflected in Title
VI of the Clean Air Act. As such, any action that reduces the use and
emissions of ODS can help the recovery of the ozone layer.
EPA also received two comments regarding what is included under the
term other appliances. One commenter recommended that the Agency create
a defined term that includes refrigerated air dryers, non-food cold
storage, wind tunnels, electrical equipment room cooling, non-occupied
digital control rooms, computer server rooms with set point below
68[emsp14][deg]F, environmental chambers, growth chambers, turbine
inlet air cooling, test cells and chambers, and aquariums. That
commenter stated that thousands of regulated entities have identified
systems that potentially fall into that category. Another commenter
noted that humidity control in paint booths and air compressors could
be other appliances but are currently treated as IPR. This commenter
encouraged EPA to remove the other category and instead treat
appliances that do not fall under comfort cooling or commercial
refrigeration as IPR.
At this time, EPA is not finalizing a definition of ``other
appliance.'' The owners or operators of some of the appliances included
in a definition may currently treat such appliances as IPR or
commercial refrigeration. While not all ``other appliances'' fall under
IPR, for those that do, moving them into an ``other appliances''
category would reduce their leak rate from 35 to 10 percent without
prior notice. More
[[Page 82322]]
fundamentally, EPA's current view is that it is appropriate for other
appliances to be regulated according to their function, such that those
that fit within the definition of IPR would be regulated as IPR and
those that fit within the definition of commercial refrigeration would
be regulated accordingly. That view is reflected in the regulatory text
finalized in this rule, which provides that the 10 percent leak rate
applies to ``other appliances'' with a full charge of 50 or more pounds
of refrigerant that are not covered by subparagraphs addressing IPR or
commercial refrigeration equipment.
6. Leak Rate Calculation and Seasonal Variances
The first step in reducing refrigerant leaks is knowing whether the
appliance is leaking refrigerant and, if so, to what extent. The prior
regulations at Sec. 82.156(i) did not explicitly require technicians
or owners and operators to calculate the leak rate each time
refrigerant is added to an appliance. Recognizing that knowing the leak
rate is necessary for compliance with the leak repair provisions of
subpart F, EPA's Compliance Guidance for Industrial Process
Refrigeration Leak Repair Regulations under Section 608 of the Clean
Air Act from October 1995 states that ``[e]ach time you add refrigerant
to a system normally containing 50 pounds or more of refrigerant, you
should promptly calculate the leak rate.'' (emphasis in original).
Generally, the only time one can calculate the leak rate is when
refrigerant is added to the appliance.
To reinforce this practice, EPA is clarifying in the revisions to
the regulatory text finalized in this rule that owners or operators of
appliances with 50 or more pounds of refrigerant must calculate the
leak rate every time refrigerant is added to those appliances. EPA is
also clarifying that the leak rate would not need to be calculated when
refrigerant is added immediately following a retrofit or the
installation of a new appliance or for a seasonal variance.
Two commenters suggested that the leak rate calculation should not
be required on non-leaking appliances where all identified leaks are
repaired within 30 days of discovery. While EPA commends appliance
owners and operators who regularly repair all identified leaks within
30 days, calculating the leak rate each time refrigerant is added is
still necessary. Comments indicate that in some instances, appliance
owners and operators are unable to find significant leaks that may be
driving the high leak rate. Given this feedback, EPA concludes that
calculating the leak rate is needed to alert the appliance owner or
operator to the fact that, in the case of a continually high leak rate,
the typical repair and inspection attempts are not sufficiently
addressing the problem with the appliance. Moreover, because the
revisions to the leak repair rules as finalized in this action require
owners or operators to repair leaks to lower the leak rate below the
applicable threshold, calculating the leak rate on an ongoing basis
provides important information to help evaluate whether this
requirement has been satisfied. Not calculating the leak rate each time
refrigerant is added could also lead to confusion for technicians that
service more than one customer if each has different equipment subject
to different regulatory compliance requirements.
EPA is also clarifying in this final rule how to handle seasonal
variances. In regions of the country that experience large temperature
swings during the year, refrigerant in some appliances can migrate from
the condenser to the receiver. This migration results in a need to add
refrigerant to an appliance to ``flood the condenser'' in the season of
lower temperature ambient conditions (fall or winter). In this case,
the added refrigerant would have to be removed when the weather returns
to design ambient conditions to prevent high head pressures. This
technique is often referred to as a winter-summer charge procedure or a
seasonal adjustment. Seasonal adjustments are not necessary for
appliances with properly sized system receivers because they can hold
the appliances' full charge, including the additional charge needed to
flood the condenser.
Under this final rule, owners or operators can exclude from the
leak rate calculation the amount added that is less than or equal to
the amount removed during the prior season. In a properly charged, non-
leaking system, adding refrigerant during months with lower ambient
conditions (fall or winter) would require an equivalent amount of
refrigerant to be removed in the months with higher ambient conditions
(spring or summer). If more refrigerant is added in the fall/winter
than was removed in the prior spring/summer, the difference between the
two would be considered a leak and not a seasonal variance. Without
requiring that the amount added be equal to or less than the amount
removed to qualify for the exemption, there is no way to distinguish
legitimate seasonal variances from refrigerant leaks. For example, an
appliance owner removes 150 pounds of refrigerant during the spring.
Later that year, he adds 180 pounds to that same system to address a
seasonal variance. The owner would be able to consider 150 of the 180
pounds as a seasonal variance and the remaining 30 pounds as a leak.
EPA expects only one removal and one addition of refrigerant to
account for seasonal variance. If the amount added is equal to or less
than the amount removed in the previous season, but an additional
amount is added in close proximity (typically within a few days to a
few weeks) to the addition being counted as a seasonal variance, and
the two additions together are less than or equal to the amount removed
in the previous season, the second addition would be considered part of
the same refrigerant addition unless the owner or operator could
document a leak.
As discussed previously in this notice, EPA is defining a seasonal
variance as the removal of refrigerant from an appliance due to a
change in ambient conditions caused by a change in season, followed by
the subsequent addition of an amount that is less than or equal to the
amount of refrigerant removed in the prior change in season, where both
the removal and addition of refrigerant occurs within one consecutive
12-month period.
EPA is finalizing in the revised regulations at Sec. 82.157(b)
that the leak rate does not need to be calculated when adding
refrigerant that qualifies as a seasonal variance. Both the addition
and prior removal of refrigerant due to seasonal variances must be
documented. Such additions and removals would already be accounted for
in service records provided by the technician to the owner/operator.
The recordkeeping requirements for this flexibility in calculating the
leak rate are located in Sec. 82.157(l)(2), and those for maintaining
records associated with the seasonal variance if it is excluded from
the leak rate calculation are at Sec. 82.157(l)(10).
Commenters were generally supportive of this new flexibility, but
had some concerns, many of which are discussed in the definitions
section of this notice. Several commenters requested clarification on
whether the owner or operator would be responsible for this
requirement. Owners or operators must keep records of refrigerant added
and removed from an appliance. If they wish to claim a seasonal
variance, they must note in their records the amount of refrigerant
that was removed at the end of the last season for a seasonal variance.
This is likely to be one of the only reasons to remove refrigerant
without immediately adding additional refrigerant or without
[[Page 82323]]
mothballing, retiring or retrofitting an appliance.
7. Appliance Repair
The prior regulations at Sec. 82.156(i) generally require owners
or operators to repair leaks within 30 days of the leak rate being
exceeded (i.e., the date of the refrigerant addition) to bring the leak
rate to below the applicable leak rate. In the proposed rule, EPA
discussed that owners or operators may not know that they have
performed sufficient repairs to bring the system below the leak rate,
or they may have completed the repairs but may find themselves out of
compliance if a separate leak occurs. To reduce emissions of
refrigerants to the lowest achievable level, and remove ambiguity
concerning compliance, EPA proposed to require a leak inspection of the
appliance and then repair all identified leaks. Recognizing that a
small amount of refrigerant can be released from an appliance even if
the refrigerant circuit is unbroken, EPA sought comments on not
requiring the repair of certain minor leaks. Specifically, EPA asked
whether it should exempt situations where sound professional judgment
indicates an individual identified leak is not the result of a faulty
component or connection and that refrigerant releases would not be
reduced from repair or adjustment.
Many commenters requested that EPA differentiate between major
fixable leaks and minor unfixable leaks. They stated that it is
impossible to repair ``all leaks'' as many systems have minuscule leaks
that are not fixable. A couple of commenters suggested that EPA not
require the repair of leaks that meet the ASHRAE 147 standard, which
are those that are less than 0.1oz/year/joint. Another commenter
recommends a threshold of 10,000 ppm if using leak detection equipment,
or detection visible to the naked eye if using qualitative tests like a
soap bubble test. Other commenters supported EPA's proposed exception
that allows a technician to use best professional judgment to decide
that a leak is not caused by a faulty component or connection and that
the leak would not be reduced from repair or adjustment.
Some commenters were concerned about the diminishing returns of
repairing all identified leaks. In some cases, small leaks may actually
require extensive repair activities and even component replacement.
Repairing all identified leaks will extend repair times, which for IPR
systems may increase the costs of the repair or, in the case of nuclear
generating facilities, increase the risk of conducting those repairs.
For those reasons, these commenters said owners and operators should be
provided flexibility to select which leaks to repair or make a good-
faith effort to repair leaks.
In this final rule, after consideration of the comments, EPA is not
finalizing the proposed change to require repair of all identified
leaks. In the proposal, EPA acknowledged that a small amount of
refrigerant can migrate from an appliance even if the refrigerant
circuit is unbroken, and requested comment on whether there should be a
limited exception from the requirement. Instead, the regulations
finalized today contain the same requirement as in the original rule by
requiring that leaks be repaired such that the leak rate will be below
the applicable leak rate. Accordingly, EPA is not at this time setting
a final standard for what is, or is not, an actionable leak beyond the
applicable leak rate. In not finalizing this proposed change, EPA
considers that an owner or operator may have good reason to choose not
to repair a small leak. EPA also considers the original intent of the
leak repair provisions, as explained in the 1993 Rule. At that time the
Agency considered requiring the repair of all leaks ``which has the
benefit of simplicity and clarity'' but explained that without ``any
type of lower bound, however, this standard could result in huge
amounts of money being spent to repair even pinhole leaks in equipment
that may soon be obsolete . . . The intent of the leak repair
requirement in this rule is to assure that substantial leaks are
repaired.'' (58 FR 28680). Not finalizing this proposed requirement
reduces the number of leaks that are to be repaired and accordingly
will reduce the burden of the final rule compared with the proposed
rule for two reasons. First, the repair effort itself may take less
time. Second, fewer verification tests on the repairs, and
recordkeeping associated with such tests, will be needed.
The final regulations include other provisions to help ensure that
leaks are repaired consistent with the Rule's provisions, and to
address compliance and enforceability of the leak repair provisions.
For example, the final regulations provide for initial and follow-up
verification tests, as discussed below. They also specify that the leak
rate must be confirmed upon the next refrigerant addition. EPA
recognizes that this will result in some uncertainty because the owner
or operator will not know whether the repair is successful until the
leak rate is measured at a future date. There are two instances in
which EPA will consider a repair to be successful beyond calculating
the leak rate upon the next refrigerant addition. The first instance is
if a subsequent leak inspection does not find any leaks at all.\24\ EPA
therefore strongly encourages the owner or operator to repair all
identified leaks, and this provision provides an incentive to repair
all identified leaks, although EPA is not finalizing this proposed
requirement. The second instance is if there has not been a refrigerant
addition in 12 months after the date of repair. If there is not a need
for another refrigerant addition for at least a year after the date of
repair (and thus the leak rate cannot be calculated for at least a
year) EPA will consider the repairs to have been successful.
---------------------------------------------------------------------------
\24\ As discussed previously in this notice, EPA is finalizing
the proposed requirement that the owner or operator conduct a leak
inspection of the appliance before considering the repair to be
complete. Conducting a comprehensive leak inspection is the only way
to ensure that the owner or operator can identify the repairs
necessary to bring the leak rate below the applicable level.
---------------------------------------------------------------------------
If upon the next refrigerant addition the appliance is still
exceeding the threshold leak rate, EPA's presumption is that the repair
failed. The burden is on the owner or operator of the appliance to show
that leaks were repaired to bring the leak rate below the applicable
threshold and that those repairs held.
One commenter stated that the greatest value of a leak inspection
is on a system with a known leak. A comprehensive leak inspection on an
appliance that has exceeded the applicable leak rate will ensure that
the technician does not stop an inspection when the first leak is
found. Another commenter encouraged EPA to be specific that the leak
inspection be conducted on the whole system not just where the original
leak was found. Another commenter stated that if a particular circuit
in a rack house is found to be leaking and is subsequently repaired and
passes the verification test, it would be nonsensical to require the
inspection of other circuits on that particular appliance.
EPA agrees with these three commenters. The leak inspection must
encompass all visible and accessible components of an appliance, with
certain exceptions specified in the revised rule. The leak inspection
is not complete simply because a single suspected leak is identified.
Only through an inspection of the whole of the appliance can an owner
or operator know that the repairs that are to be made will be
sufficient to bring the appliance below the applicable leak rate.
However, a leak inspection need
[[Page 82324]]
not be performed on other appliances at that site. As discussed
previously in this notice, EPA is clarifying the definition of
appliance such that each separate circuit is a separate appliance.
While there could be a benefit to proactively searching for leaks on
all other circuits, there is no obligation to inspect the other
circuits if only one circuit is leaking and it has been repaired and
the repair verified.
8. Verification Tests
The prior regulations at Sec. 82.156(i)(3) required verification
tests for repairs to IPR and federally owned commercial and comfort
cooling appliances containing an ODS refrigerant. Verification tests
are performed on appliances, or portions thereof, shortly after they
are repaired to confirm that leaks have been fixed. Without
verification tests, it may take additional time for the owner and
operator to realize that a repair has been unsuccessful and during that
time refrigerant could continue to leak from the appliance. EPA is
extending this requirement to all required repairs because ensuring
that the repairs are done correctly the first time is vital to reducing
refrigerant emissions, regardless of whether the appliance is used for
IPR, commercial refrigeration, comfort cooling, or is in the category
of ``other appliances.''
EPA is finalizing the requirement at Sec. 82.157(e) that owners or
operators of all types of appliances that are subject to the leak
repair requirements (including those using an ODS or non-exempt
substitute refrigerant) perform both an initial and follow-up
verification of repairs every time the applicable leak rate is exceeded
(unless a retrofit or retirement plan is being developed). Most
commenters on this issue supported the requirement for a follow-up
verification test. Commenters agreed that the combination of an initial
and a follow-up verification test provides effective confirmation of
successful repair. One commenter stated that requiring the verification
of all repairs would be excessively burdensome. The commenter discusses
this burden in the context of the proposal to repair ``all identified
leaks.'' The commenter continues that if amendments to the rule for
inspections and repairs are adopted in any form, EPA should adopt
verification provisions that are limited to significant leaks or adopt
an 80/20 rule to assure that the majority of leak repairs are verified
by a certified technician or qualified plant personnel.
EPA disagrees with the comment about limiting verification
provisions to significant leaks or adopting an 80/20 rule. Because EPA
is not requiring the repair of all identified leaks in the final rule,
the number of verification tests should be reduced. However, as
explained above, it is important that all repairs be verified both for
purposes of compliance and enforceability and for purposes of avoiding
emissions from leaking appliances. Since owners or operators have
flexibility to determine which leaks to repair as long as they can meet
the obligation to bring the leak rate below the applicable threshold,
they may generally consider what are significant leaks in their repair
effort. The verification tests would only apply to the leaks that were
repaired.
One commenter stated that a follow-up verification test is
unnecessary if there are periodic leak inspections and thus they should
be eliminated. EPA disagrees with this comment because a follow-up
verification test and a leak inspection serve two separate purposes.
The verification test is conducted shortly after the repairs to confirm
the success of those repairs. The leak inspections are to identify over
the next year or longer whether new leaks have developed or whether
minor leaks have become more significant and to determine the location
of such leaks.
EPA requested comments on whether to require a minimum time between
initial and follow up verification tests, such as one to three hours,
to allow an appliance to return to normal operating characteristics and
conditions. Many commenters recommended that EPA not establish a
minimum time. Commenters suggested that the follow-up verification test
be allowed as soon as the appliance returns to normal operating
characteristics and conditions. Requiring a waiting period would
increase costs by requiring an additional service call. Furthermore,
high pressure systems will reveal whether a leak was properly repaired
almost immediately.
EPA has considered the burden of conducting verification tests on
all appliances. The Agency understands that most technicians pressure
check appliances immediately following repairs. Such pressure checks
would satisfy the initial verification requirements. EPA is concerned
that follow-up verifications may not be a part of normal operating
procedures for all repairs. This final rule would allow both initial
and follow-up verification tests to be conducted during the same
service appointment. Accordingly, EPA does not expect the requirement
for verification tests to result in a longer servicing event and thus
we do not expect this requirement to result in incremental labor costs.
However, the final rule provides, and EPA reiterates, that the
technician must wait until the appliance returns to normal operating
characteristics and conditions, which includes operating temperatures,
pressures, fluid flows, speeds, and other characteristics, including
full charge of the appliance, that would be expected for a given
process load and ambient condition during normal operation.
Some commenters requested that EPA add a reporting requirement for
technicians to provide owners or operators with the results of the
verification tests. These commenters expressed that it is difficult to
get all of the documentation that they are required to maintain from
the technicians who generate those records. EPA agrees with the need to
harmonize the recordkeeping provisions between technicians and owners
and operators and understands that in order for owners and operators to
maintain the required records of the verification tests, they would
need to obtain relevant information from the person conducting those
tests. For these reasons, EPA is adding a requirement for technicians
to provide documentation at the conclusion of each service visit to
Sec. 82.157(l)(5).
Two commenters suggested that EPA provide an exception for
situations where a follow-up verification test is impossible, for
example, when it would be unsafe to be present when the system is at
normal operating characteristics and conditions. One of the commenters
recommended that EPA allow a standing deep vacuum test in lieu of a
follow-up verification test. EPA responds that the Agency attempted to
address similar concerns from commenters in 1995. Examples included
leaks inside a heat exchanger, compressor internals, locations that
must be insulated prior to start-up, and locations in close proximity
to dangerous hot equipment or moving parts where access is not possible
after reassembly (See 60 FR 40429). At that time, the Agency amended
the regulation at Sec. 82.156(i)(3) to state that ``[i]n all cases,
the follow-up verification test shall be conducted at normal operating
characteristics and conditions, unless sound professional judgment
indicates that tests performed at normal operating characteristics and
conditions will produce less reliable results, in which case the
follow-up verification test shall be conducted at or near the normal
operating pressure where practicable, and at or near the normal
operating temperature where practicable.'' EPA had proposed to remove
that provision to make the regulation clearer and less ambiguous.
[[Page 82325]]
Instead, EPA is modifying that provision in the revised regulations at
Sec. 82.157(e)(2) to more clearly address the concern about safety
raised by the commenters as well as the original intent of that
provision.
EPA is also finalizing the proposed change to clarify that owners
or operators may conduct as many repair attempts as needed within the
initial 30 days (or longer if an extension is available) to repair the
appliance. Consequently, the Agency is explicitly allowing unlimited
verification tests within the required repair window. Commenters were
supportive of this clarification.
9. Extensions to the 30-Day (or 120-Day) Repair Requirement
The prior regulations contained extensions to the repair or
retrofit/retirement deadlines under four conditions:
The appliance was mothballed (available for all
appliances) (Sec. 82.156(i)(10));
The appliance was located in an area subject to
radiological contamination or where shutting down the appliance would
directly lead to radiological contamination (available for federally
owned appliances) (Sec. 82.156(i)(1)(ii) and (i)(5)(ii));
Applicable federal, state, or local regulations made a
repair within 30 or 120 days impossible (available for IPR) (Sec.
82.156(i)(2)(i)); or
Parts were unavailable (available for IPR) (Sec.
82.156(i)(2)(i)).
While not an extension, IPR facilities were also allowed an initial
repair period of 120 days rather than 30 days if an industrial process
shutdown is required to complete the repair. In addition, an exemption
to the repair requirement was allowed for all types of appliances if a
dated retrofit or retirement plan is developed within 30 days and is
then implemented within one year of the date developed.
EPA proposed to provide these extensions to all appliance
categories, not just IPR and federally owned equipment. EPA is
finalizing these proposed extensions, with some changes from the
proposal. Based on comments received, EPA is finalizing a modified
version for the extension for when necessary parts are unavailable.
More specifically, EPA is clarifying that the extension is allowed when
components that must be replaced as part of the repair are not
available within the initial 30 day (or 120 day) repair time frame.
Also based on comments, EPA is modifying the proposed changes to allow
these extensions upon notification to EPA, unless EPA notifies the
source otherwise, rather than requiring owners or operators to request
an extension and wait for EPA approval. Taken together, these changes
significantly reduce the burden of the leak repair regulations on
owners of comfort cooling and commercial refrigeration appliances and
to a lesser extent IPR.
Based on comments received, EPA is modifying the extension for when
necessary parts are unavailable. Many commenters supported EPA's
proposal to allow additional time to acquire and install a replacement
for a leaking component. While EPA views installing a component as a
type of repair, the comments indicate that some owners or operators
consider the replacement of a component as different than the repair of
an appliance. Replacing a component is more costly, requires more time
to order, and requires more system downtime to install. Owners or
operators may attempt to repair a leak but upon a failed follow-up
verification test may ultimately decide that the whole component where
the leak is located needs to be replaced. By the time a decision is
made to replace the whole component, there is little time remaining
within the initial 30 day repair window to procure and install that
component.
Based on these comments, EPA is modifying the extension for when
necessary parts are unavailable by clarifying that the extension is
allowed when components that must be replaced as part of the required
repair are not available within the initial 30 day time frame (or 120
days if an industrial process shutdown is required). This extension
encourages the proper repair of an appliance, which in EPA's view,
includes the replacement of major components if necessary, rather than
simply patching those components, an approach which may not be
successful in the longer term. Furthermore, some owners or operators
would prefer to replace a faulty component before they are required to
retrofit or retire an entire appliance and believe this could, in many
instances, be an equally effective means to address needed repairs.
This extension should also reduce the potentially large burden upon
owners or operators of requiring a large-scale retrofit or retirement
when replacing the leaking component might satisfactorily repair the
appliance.
The extensions for repair in the prior regulations are open-ended.
While those regulations provided only the additional time needed to
receive delivery of the necessary parts, it did not set an outer limit
for delivery nor did it clearly provide time to install the components
once they are received. EPA is finalizing its proposal to set a limit
on the extension for the installation of a necessary component. The
owner or operator must complete the repair within 30 days after
receiving delivery of the component and the total extension may not
exceed 180 days (or 270 days if an IPR shutdown is required).
To qualify for any of the extensions in this section, owners or
operators must perform all repairs that can be completed within the
initial 30 or 120 day period. Initial verification tests must be
performed on all completed repairs. A final verification test may not
be appropriate for the completed repairs depending on the nature of the
remaining repairs and state of the appliance. The owner or operator
must also document all such repair efforts and the reason for the
inability to make the repair. This would include a written statement
from the appliance or component manufacturer or distributor stating the
unavailability of the necessary component and the expected delivery
date.
Some commenters stated that any changes to nuclear generating
stations must undergo extensive engineering and risk review processes,
which recommends against the requirement to retrofit if they cannot
repair the system. The commenter noted that extended downtime of safety
systems in such facilities will increase risk to workers and may
conflict with federal regulations. EPA responds that the Agency is
providing extensions for any appliance type subject to radiological
contamination. Previously, this extension was available only for
federally owned appliances. EPA is also not changing the open-ended
nature of the extensions due to radiological contamination or
compliance with applicable federal, state, or local regulations.
Together, this should allow repairs in accordance with the commenter's
schedule.
In some instances, encouraging repair may be a preferable
environmental outcome to requiring the retrofit or retirement of a
leaking system. Appliances that are to be retired are not required to
be repaired. Thus, an appliance may continue to leak for up to a year
(in addition to extension opportunities). Under this final rule, leaks
must be repaired to bring the leak rate below the applicable threshold
within 30 days and any component replacement must occur within 6
months. The extension could accelerate the time by which the appliance
will stop releasing refrigerants by making leak repair seem more
attractive or
[[Page 82326]]
feasible for some owners or operators compared with retrofit or
retirement of a leaking system.
Based on the comments received, EPA is allowing these extensions to
be automatic, so long as EPA is notified. Previously, owners or
operators would have to request these extensions from EPA and wait for
them to be approved. One commenter requested that EPA automatically
grant the extension where there are limiting federal, state, or local
laws so long as the owner or operator maintains the proper
documentation that demonstrates they satisfy the condition. Another
commenter requested that EPA harmonize the timing of the request with
the 30 day time frame to repair. Previously, a request had to be made
within 30 days of exceeding the leak rate but EPA had an additional 30
days to approve or deny the request. There was no clear tolling of the
30 day repair clock which meant a system could be denied an extension
after the repair deadline expired. EPA is resolving these conflicting
schedules by considering repair requests approved unless EPA notifies
the owner or operator that it is not approved.
Owners or operators must provide the same information to EPA as was
contained in a request for an extension under the prior regulations.
The request must include: Identification and address of the facility;
the name of the owner or operator of the appliance; the leak rate; the
method used to determine the leak rate and full charge; the date a leak
rate above the applicable leak rate was discovered; the location of
leak(s) to the extent determined to date; any repair work performed
thus far, including the date that work was completed; the reasons why
more than 30 days are needed to complete the repair; and an estimate of
when the work will be completed.
If an extension to the earlier submitted completion date is
necessary, the owner or operator must still submit a request to EPA
with a new estimated date of completion and documentation of the reason
for that change. The request must be within 30 days of identifying that
further time is needed. The owner or operator must keep a dated copy of
this submission and proof that it was submitted.
10. Retrofit or Retirement Plans
The previous regulations at Sec. 82.156(i)(6) required an owner or
operator of an appliance that exceeds the applicable leak rate to
develop a retrofit or retirement plan generally within 30 days if they
were unable to repair the leak or simply choose not to repair the leak
and instead retire the appliance. EPA proposed four revisions to the
retrofit/retirement provision. First, EPA proposed to remove the
requirement to retrofit or retire an appliance after a failed follow-up
verification test. Second, EPA proposed to remove the requirement to
use a substitute with a lower or equivalent ODP. Third, EPA proposed to
establish explicit elements of a retrofit/retirement plan. Fourth, EPA
proposed to require that all identified leaks be repaired as part of
implementing any retrofit plan. EPA is finalizing these four proposals,
with some modifications based on comments.
Failed Verification Tests. The prior regulations required owners or
operators of IPR using an ODS refrigerant that have failed a follow-up
verification test to develop a retrofit or retirement plan within 30
days of the failed verification test and implement the plan within one
year. Owners or operators of comfort cooling and commercial
refrigeration appliances were not required to perform verification
tests on their repairs and therefore were not subject to this trigger
to develop a retrofit or retirement plan. As discussed in Section
IV.F.8 of this notice, EPA is extending the requirement to conduct
verification tests on repairs made to commercial refrigeration and
comfort cooling appliances, increasing the potential universe of
appliances affected.
Both prior to initiating this rulemaking and through comments
received on the proposed rule, appliance owners/operators have
expressed their concern to EPA that the requirement to retrofit or
retire an entire appliance because it has failed a verification test is
not always practical or necessary. In their view, a failed verification
test should indicate to a technician that further repair work needs to
be performed to properly fix the leak, not a regulatory requirement to
begin retrofitting or retiring the appliance. As EPA discusses in the
section on follow-up verification tests, in the revisions finalized in
this rule EPA is allowing as many repairs and follow-up verification
tests as are necessary to fix the appliance within the required time
frame. Accordingly, consistent with these comments, the revised
regulations no longer require an owner or operator to retrofit or
retire an entire appliance simply because it has failed a verification
test.
EPA proposed that failing to comply with ``paragraphs (e) and (f)
of this section,'' which included the proposed requirement to repair
all identified leaks and verify all repairs, would trigger a
requirement to develop a retrofit or retirement plan within 30 days,
rather than a failed verification test. As discussed above, EPA is not
finalizing the proposal to repair all identified leaks; therefore, EPA
is modifying the trigger to develop a retrofit or retirement plan
accordingly. In this final rule, a plan must be developed within 30
days of discovering that an appliance continues to leak above the
applicable leak rate after having conducted the necessary repairs and
verification tests. This provision as finalized is also narrower and
clearer than a ``failure to comply with paragraphs (e) and (f) of this
section,'' which EPA proposed, because the proposed language could have
been interpreted to also include failure to maintain records rather
than failure to repair the appliance. EPA has added a provision to
clarify that owners or operators are still required to develop a
retrofit or retirement plan even if they do not affirmatively choose to
retrofit, retire, or repair their leaking appliance.
Retrofit/Retirement ODP. EPA's prior regulations required that
appliances containing an ODS refrigerant, when being retrofitted or
retired/replaced, use a refrigerant with an equivalent or lower ODP.
EPA created this provision to foster the transition from refrigerants
with high ODPs to ones with a lower or zero ODP.
EPA proposed to remove this requirement and allow for retrofits or
retired/replaced appliances to use any refrigerant (other than the one
currently used in that appliance in the case of retrofits), so long as
it is acceptable for use under SNAP. This proposed revision would not
relax the prior requirements with respect to HCFCs since the
regulations implementing sections 605 and 606 of the CAA already
prohibit the use of virgin HCFCs in appliance manufacture (as of
January 1, 2010, for HCFC-142b and HCFC-22; and as of January 1, 2020,
for other HCFCs) and thus installation and retrofit of such appliances
would not occur. As explained in the proposal, requiring the use of a
refrigerant with a lower or equivalent ODP could be problematic if the
requirement were read strictly because some non-exempt substitutes like
HFOs that are not classified as an ODS have a negligible, but non-zero,
ODP. For example, trans-1-chloro-3,3,3-trifluoroprop-1-ene (also known
as 1233zd(E)) has an ODP between 0.00024 to 0.00034 and a GWP between
4.7 to 7 (see 77 FR 47768). Under a strict interpretation, an owner/
operator would not be able to replace an R-134a chiller with a
1233zd(E) chiller in the future because R-134a has an ODP of zero and
the olefinic refrigerant has an ODP greater than zero. This
[[Page 82327]]
could prevent transition to low-GWP alternatives.
Some commenters suggested that EPA should require a retrofit to an
acceptable substitute under SNAP, with one commenter suggesting that it
be a lower GWP alternative than the refrigerant currently being used.
Another commenter suggested that if the SNAP-approved refrigerant with
the lowest available GWP is being used, EPA should allow for documented
repairs and quarterly leak inspection in place of forced system
retirement.
Other commenters questioned the value of retrofitting a system that
already uses substitute refrigerants and suggest that retrofit plans
should not be required for non-ODS equipment. One commenter viewed the
existing rules as providing an opt-out incentive to owners that
voluntarily retrofit to a non-ODS. The commenter requested that EPA
retain this feature so that owners that switch from a high-GWP
refrigerant to a low-GWP refrigerant similarly benefit. Similarly, a
commenter questioned how retrofitting helps the owner/operator if the
rules for HFCs are the same as for ODS.
EPA responds that the Agency is finalizing provisions that
encourage the repair of leaking systems instead of requiring the
retrofitting or retirement of those systems. Most significantly, EPA is
finalizing the proposal to allow all comfort cooling, commercial
refrigeration, and IPR appliances the opportunity to extend the
deadline to repair leaking appliances beyond 30 days (or 120 days if an
industrial process shutdown is required). It is not the Agency's
intention to use the retrofit or retirement requirements in the subpart
F regulations to dictate specific refrigerant choices. The revisions to
these regulations are intended to provide as much flexibility to the
owner or operator to decide what is appropriate for their system.
Elements of a Retrofit or Retirement Plan. EPA has not previously
specified what elements should be included in a retrofit or retirement
plan. Due to the complex nature of refrigeration appliances, an
exhaustive list may not fit all types of appliances considering the
wide array of configurations and refrigerant choices. Based on requests
from stakeholders, EPA proposed a minimum set of information that is
likely to be needed during any type of retrofit or retirement to be
included in a plan, including:
Identification and location of the appliance;
Type (i.e., ASHRAE number) and full charge of the
refrigerant currently used in the appliance;
Type (i.e., ASHRAE number) and full charge of the
refrigerant to which the appliance will be converted, if retrofitted;
Itemized procedure for converting the appliance to the new
refrigerant, including changes required for compatibility (for example,
procedure for flushing old refrigerant and lubricant; and changes in
lubricants, filters, gaskets, o-rings, and valves), if retrofitted;
Plan for the disposition of recovered refrigerant;
Plan for the disposition of the appliance, if retired; and
Schedule for completion within one year of the appliance
retrofit or retirement.
Some commenters stated that this is excessively detailed and
includes information that is unlikely to be known immediately upon
deciding to retrofit or retire an appliance. One commenter noted that
it will take time to perform the necessary engineering evaluations and
investigate the costs and timing associated with the available options.
The commenter provided revised regulatory text to remove reference to
the type of refrigerant and full charge for the retrofitted system, the
procedure for converting the appliance to a new refrigerant, and the
schedule for conducting the retrofit or retirement.
EPA responds that the shortest time frame in which a retrofit or
retirement plan would have to be developed is when, upon discovering a
leak, the owner or operator immediately chooses to retrofit or retire
the appliance upon discovering that leak. In that circumstance the plan
would be developed within 30 days. In all other circumstances, the
owner will have 30 days from when repair attempts have failed,
including repairs attempted under various extensions, to develop the
plan.
While some information may not be available in that time frame, the
owner or operator can develop an initial plan within 30 days and then
modify it as additional information is determined. For example, owners
or operators may not know within the allotted time frame what the
itemized procedure will be until they finalize plans for the retrofit
or retirement. The plan could indicate what steps must be taken in
order to have enough information to make the necessary determinations.
The information required in the plan is not excessively detailed
because the owner or operator will need to know this information in
order to properly dispose of the old appliance and install the
replacement.
One commenter also stated that the plan does not need to be kept
onsite with the appliance, so long as it can be made available to EPA
and that it is also unnecessary for a plan to be signed because staff,
including the person who initially signed the plan, could change. The
commenter believes it is sufficient for EPA to be told who is
responsible for the plan when it is provided to the Agency. EPA
responds that it is appropriate for the plan to be accessible at the
site of the appliance. The previous rules required that the original
plan or a legible copy be kept at the site of the appliance. This could
imply maintaining a printed version of the plan with the appliance. EPA
is finalizing the proposal to allow for the plan to be ``accessible''
at the site of the appliance, which includes an option to have the plan
be ``accessible'' in electronic format. This provides sufficient
flexibility for the plan's storage while still allowing for the plan to
be quickly available upon request. It is also important that the plan
be signed so that the authorized representative has taken
responsibility for the plan and so that EPA can identify who that
person is and the date the plan was created.
Requirement to Repair Appliances Undergoing Retrofit. Under the
prior regulations at Sec. 82.156(i)(6), owners or operators were not
required to repair leaks if they developed a retrofit or retirement
plan. EPA proposed to require that all identified leaks be repaired as
part of any retrofit under such a plan. EPA is finalizing the
requirement that a system being retrofitted must be simultaneously
repaired as part of the retrofit. EPA is also finalizing the proposed
requirement that the owner or operator repair ``all identified leaks''
as part of the retrofit, rather than allowing selective repairs that
would bring the appliance below the applicable leak rate. Although this
differs from the requirements for leak repair discussed in Section
IV.F.7, a retrofit is a more extensive change to a system, during which
time components may be replaced and more comprehensive leak repair can
be performed.
11. Extensions To Retrofit or Retire Appliances
Under the prior regulations at Sec. 82.156(i)(6), an owner or
operator generally was required to complete the retrofit or retirement
of a leaking appliance containing an ODS within one year of creating a
retrofit or retirement plan. Extensions were available in the following
circumstances:
[[Page 82328]]
If delays were caused by requirements of other applicable
federal, state, or local laws or regulations (available for IPR);
If a suitable replacement refrigerant with a lower ODP was
unavailable (available for IPR);
If the supplier of the appliance or a critical component
quoted a delivery time of more than 30 weeks from when the order was
placed (available for IPR);
If complications presented by the appropriations and/or
procurement process resulted in a delivery time of more than 30 weeks
(available for federally owned appliances); or
If the appliance was located in an area subject to
radiological contamination and creating a safe working environment will
require more than 30 weeks (available for federally owned appliances).
EPA proposed at Sec. 82.157(i) four substantive revisions to these
extensions. First, as with all other leak repair provisions, EPA
proposed to apply these extensions to appliances containing non-exempt
substitute refrigerants. EPA is finalizing this revision, as proposed.
Second, EPA proposed to remove the extension for when a suitable
replacement refrigerant with a lower ODP is not available. EPA
established this extension when certain applications using CFCs did not
have a suitable HCFC substitute. Today, there are many more substitutes
for ODS refrigerants. In fact, few appliances can be newly installed or
retrofitted with virgin ODS because of the HCFC use restrictions
implementing section 605 of the CAA. As discussed previously in this
notice, EPA is removing the requirement that a retrofit use a
refrigerant with a similar or lower ODP. Therefore, the rationale for
this extension no longer exists and EPA is removing it as proposed. EPA
is accordingly also removing the term suitable replacement refrigerant
from the definitions in Sec. 82.154, as proposed.
Third, EPA proposed a new extension at Sec. 82.157(i)(1) if the
appliance is to be retrofitted to or replaced with a refrigerant that
is exempt from the venting prohibition as listed in Sec. 82.154(a). In
that situation, EPA proposed to allow an extension up to 18 months.
Whereas the prior extensions were only available to IPR and federally
owned appliances, EPA proposed to make this extension available to
comfort cooling and commercial refrigeration appliances as well.
Some commenters were supportive of this proposal as a way to
encourage transition to zero-ODP and low-GWP refrigerants. Other
commenters were opposed to the proposal because it encourages the use
of refrigerants that are more toxic, hazardous, or flammable than HFCs.
EPA responds that the first comment is correct that the
refrigerants that are exempt from the venting prohibition, such as
carbon dioxide (R-744), and the hydrocarbon refrigerants ethane (R-
170), propane (R-290), isobutane (R-600a), and R-441A in certain uses,
have an ODP of zero and low GWPs ranging from one to eight. EPA further
notes that subject to 40 CFR subpart G, many of the refrigerants exempt
from the venting prohibition are not acceptable when retrofitting
certain types of equipment; hence, in most cases these exempt
refrigerants would be used in new equipment replacing the leaking
system. One reason to provide more time for retrofitting or
replacements for exempt substitutes is to allow time to purchase and
install new equipment. With respect to the points made by the second
comment, the refrigerant must be approved under SNAP for the end-use in
order to be used. A company choosing to move to one of these
alternatives would reasonably be expected to consider safety
characteristics of the refrigerant. Moreover, for refrigerants that are
exempt from the venting prohibition, the Agency has already determined
that the release of these substances do not pose a threat to the
environment as part of the decision to exempt them from the venting
prohibition. Accordingly, EPA is finalizing this extension as proposed.
Fourth, the prior regulations at Sec. 82.156(i)(3)(v) relieved
owners and operators of IPR appliances of the requirement to retrofit
or retire their appliances if they established that the appliance's
leak rate is below the applicable rate within 180 days of an initial
failed follow-up verification test and they notified EPA within 30 days
of that determination. EPA proposed to remove this provision because it
was infrequently used and because other extensions, in particular the
extension to receive a replacement component, should provide sufficient
flexibility for IPR and other appliances.
Multiple commenters recommended that EPA retain this exemption
because there may be situations where the root cause of a leak is not
identified until after a retrofit/retirement plan is developed. The
commenters stated that an appliance need not be retrofitted or retired
if it can be demonstrated that it is repaired.
Based on these comments, EPA is not finalizing its proposal to
remove that provision. Just because it is not frequently used does not
mean that it may not be used in the future, especially since EPA is
expanding the universe of appliances subject to the retrofit/retirement
plan requirements to include those that use non-exempt substitute
refrigerants. EPA agrees that an appliance need not be retrofitted or
retired if it can be demonstrated that the repairs bring the leak rate
of the appliance below the threshold leak rates. In the instance of a
retrofit, because EPA is requiring that all identified leaks be
repaired, it is possible that the appliance could be repaired to such
an extent as to not need to complete the retrofit.
EPA is concerned, however, about whether this provision could
provide a mechanism to delay repairs. To discourage this, EPA is
requiring that all identified leaks be repaired consistent with the
retrofit requirements, rather than merely fixing leaks sufficient to
bring the appliance below the applicable leak rate, which is what EPA
is finalizing for repairs required under Sec. 82.157(d). EPA is also
revising the reporting elements that were found in the prior
regulations related to this provision. Rather than allowing the owner
or operator to merely provide notice to EPA, the Agency is requiring
that the owner or operator request that EPA relieve them of the
obligation to retrofit or retire the appliance. Like other requests in
the leak repair provisions, the request will be considered approved
unless EPA notifies the owners or operators otherwise within 60 days of
receipt. The request must also provide other information about the
equipment and the repair, such as an explanation of why the repair was
not conducted within the time frames required under Sec. 82.157(d) and
(f). This approach provides flexibility for owners and operators while
avoiding it becoming simply an extension of the duty to repair because
of the increased level of repair and the information requirements
associated with its use. EPA anticipates this will be most useful in
situations where the root cause of the leak is not identified until
after a retrofit/retirement plan is developed.
Finally, EPA proposed to revise the extension for IPR to implement
a retrofit plan where a supplier of the appliance or a critical
component has quoted a delivery time of more than 30 weeks from when
the order is placed. EPA proposed to modify this to mirror the
extension allowed for the repair of an appliance in this situation,
such that the appliance or appliance components would have to be
installed on the retrofitted appliance within 120 days after receiving
delivery of the necessary parts. Previously, this extension allowed
[[Page 82329]]
for one additional year beyond the one-year retrofit period. EPA
inadvertently removed a provision, found previously at Sec.
82.156(i)(7)(iii), that further extended this extension for the
delivery and installation of critical components without discussion in
the notice of proposed rulemaking. EPA is restoring that provision at
Sec. 82.157(i)(2)(iii). EPA notes that the Agency correctly proposed a
similar extension for federally owned appliances in Sec.
82.157(i)(3)(iii).
12. Chronically Leaking Appliances
EPA proposed to add a total leak limit to the repair requirement to
address chronically leaking systems. Under that proposal, an appliance
containing 50 or more pounds of refrigerant may not leak more than 75
percent of its full charge in two consecutive twelve-month periods and
remain in use. If an appliance exceeded the two year leak limit, the
owner or operator would be out of compliance until the appliance was
retired or mothballed and later retired.
For the proposed rule, EPA reviewed data reported to CARB to
determine whether such a total leak limit would be necessary and, if
so, what the limit should be. In 2013, approximately 8 percent of
reporting appliances had leaked more than 75 percent of their full
charge over the calendar year and were responsible for 38 percent of
total reported emissions. Due to the high chronic leaks of such
appliances, the environmental benefit of establishing a cumulative leak
limit could be large. Nonetheless, the number of appliances affected by
this proposed limit should be low.
Environmental NGOs and state pollution control agencies were
supportive of the proposed two year leak limit, with one NGO suggesting
a leak limit of 55 percent instead of 75 percent. A chemical
manufacturer was also supportive if the proposal allowed an exemption
for unavoidable catastrophic leaks. Many other commenters expressed
strong opposition to the proposed two year leak limit, describing it as
redundant, unnecessary, or punitive. Commenters state that there are
many reasons why an appliance may leak in excess of 75 percent for two
consecutive years even though the appliance is in good condition. For
example, commenters expressed that it is possible for two large volume
leaks to occur from unrelated components. Multiple commenters stated
that owners should not have to mothball an appliance where the cause of
the leak can be remedied by the replacement of a component. Commenters
that operate supermarkets were especially concerned about the
requirement to retire the appliance given that EPA's definition of
appliance includes all of the display cases and coolers attached to the
refrigerant circuit. This requirement would result in the scrapping and
replacement of perfectly good components. Another commenter for similar
reasons suggested that IPR be exempt from the retirement responsibility
due to their unique nature, although the commenter believed comfort
cooling and commercial refrigeration could remain subject to the 2 year
leak limit. If EPA chose to finalize this leak limit, many commenters
requested an off-ramp provision from the automatic retirement for
catastrophic leaks resulting from accidents, vandalism, acts of nature,
non-mechanical failures, or on a case-by-case decision upon notifying
EPA.
In response to the significant concerns raised by commenters, EPA
is not finalizing this proposed two year leak limit. EPA is aware of
the many situations in which a system can leak large quantities of
refrigerant in consecutive years. For instance, it is possible, though
rare, for two catastrophic leaks to occur on the system through no
fault of the operator. Although EPA requested comments on a possible
exemption for catastrophic leaks, it is clear from the comments that
there is a wide range of opinions about what a catastrophic leak is,
and what can cause such a leak. Because EPA is not finalizing this
provision, it is not defining the term catastrophic leak at this time.
EPA also assumed that, absent catastrophic leaks, it was unlikely
for a system to be in compliance with other parts of subpart F while
still leaking at this rate. EPA generally anticipates that a leaking
appliance will be repaired within 30 days to six months. However, the
leak repair regulations contemplate situations in which an owner or
operator is unable to repair or subsequently retrofit a system in a
timely fashion (e.g., federally owned equipment located in areas
subject to radiological contamination, unavailability of necessary
parts for IPR, or adherence to local, State, or federal laws hinder
repairs for IPR). Based on feedback from stakeholders from meetings
docketed in this rule, EPA is aware of instances where appliances leak
refrigerant in excess of 75 percent but are still in compliance with
the other leak repair regulations.
While EPA wishes to reduce chronically leaking systems, EPA
believes other practices required under this final rule will help
address chronic leakers. For example, strengthening the leak repair
regulations by lowering the rate at which the initial repairs must be
performed, requiring leak inspections prior to those repairs,
verification tests of those repairs, and subsequent leak inspections
after the repair, will reduce the number of chronically leaking
systems.
Data received from CARB and other sources indicate that there are
systems that may not be adhering to the leak repair requirements of
subpart F. Some commenters, even those opposed to the specific proposal
offered by EPA, agree that the worst chronic leaking systems may
warrant special consideration. However, they found the proposed
provision both overly broad and overly harsh in its outcome. Some
commenters proposed alternate methods of addressing chronically leaking
systems. One commenter stated that a requirement to properly document
causes for large leaks and to establish corrective actions would likely
be more effective at reducing large leaks than simply imposing a two
year leak limit that would result in a unit being retired. CARB
recommended that if both (a) the annualized leak rate exceeds 100
percent more than 4 times in the previous 365 days and (b) more than
120 percent of the total charge has been added in the previous 365
days, the system or faulty component should be retired. EPA considered
CARB's approach and finds it attractive for a couple of reasons. This
alternative has the benefit of considering the number of refrigerant
additions in addition to the total amount of refrigerant released,
thereby removing appliances affected by catastrophic leaks. It also
would take effect after one year, which will cut in half the time in
which refrigerant is being released into the environment. However, this
approach would still require the automatic retirement of these systems,
which some commenters found to be too strict a penalty.
The chronically leaking appliance provision, as proposed, would
apply to appliances containing 50 pounds or more of refrigerant that
leak more than 75 percent of the full charge in each of two consecutive
twelve-month periods. Based on the comments, EPA is revising the
chronically leaking appliance provision. EPA is requiring that owners
or operators of appliances that leak 125 percent of their full charge
in a calendar year submit a report to EPA detailing their repair
efforts. The reports must be submitted no later than March 1 of the
year following the 125 percent or greater leak. Through that report,
the owner or operator must demonstrate that they are
[[Page 82330]]
in compliance with the repair provisions or the retrofit or retirement
provisions in this section. In some cases, owners or operators may have
already provided information to EPA as part of a repair or retrofit
extension request.
By raising the threshold, EPA intends to avoid capturing appliances
affected by unavoidable losses of full charge. Systems would have to
lose their full charge and then a significant quantity more. Using CARB
data and scaling up to the whole U.S., EPA estimates that 1,425
appliances (or 0.1 percent of all appliances with 50 or more pounds of
refrigerant) would be affected at 125 percent of full charge.
Like CARB's approach, this would apply after one year rather than
waiting for a second year of high leaks. As such, it will catch chronic
leakers sooner than the provision EPA proposed. Several commenters
contended the opportunity for a case-by-case determination is necessary
to account for the variety of situations that might trigger the
chronically leaking appliance provisions. They contended that without
the opportunity for a case-by-case determination, the provision will
force the retirement of working equipment. EPA's revised approach is
similar to what many commenters suggested in that it allows for a case-
by-case discussion after notifying EPA. Adding this reporting
requirement also furthers EPA's goal of revising these regulations to
improve enforcement and compliance of the regulations in subpart F.
This will incentivize many owners and operators to improve their
systems to ensure that they do not trigger this reporting requirement.
Comments were mixed as to whether the chronically leaking appliance
provisions should be calculated based on calendar year, 12-month
consecutive periods, or whether regulated entities should be given the
discretion to choose one or the other. These concerns are partially
moot, given that EPA has changed this requirement to allow for
reporting to EPA in lieu of a retrofit or retirement. EPA is finalizing
provisions stating that the 125 percent is based on calendar year so
that entities do not need to calculate refrigerant additions on a
rolling basis.
13. Recordkeeping
The prior regulations contained recordkeeping and reporting
provisions for all of subpart F at Sec. 82.166. As proposed, EPA is
finalizing a recordkeeping paragraph at Sec. 82.157(l) and a reporting
paragraph at Sec. 82.157(m) within the leak repair section to make
these requirements easier to locate.
The prior regulations also required that certain records be kept in
hard copy at the site of the appliance. Under the revisions finalized
in this rule, EPA is explicitly allowing, though not requiring,
electronic records in this final rule. EPA recognizes that many
companies employ electronic databases to store and track records. An
electronic recordkeeping system has advantages to paper records, and
EPA encourages owners and operators of appliances to use one of these
systems to track refrigerant additions and other required records.
Electronic systems allow for more comprehensive refrigerant management
and can help identify leaky appliances earlier. These records must
still be accessible onsite if an EPA inspector visits a facility, but
that access can occur through downloading or printing the records from
an online system.
Owners and operators. The previous rules required owners and
operators to maintain service records documenting the date and type of
service, as well as the quantity of ODS refrigerant added. EPA proposed
to add specific recordkeeping requirements to ensure that the owner or
operator is aware of the leak rate. EPA also proposed to require that
the owner or operator maintain records of all calculations,
measurements, and assumptions used to determine the full charge and any
revisions made to the full charge over time. EPA also proposed records
for the leak inspections or automatic leak detection equipment,
verification tests, and seasonal variances.
Some commenters stated that the recordkeeping for the newly
proposed requirements will be a significant burden. One commenter
stated that the recordkeeping from all of the leak inspections would be
a large burden and urged EPA to minimize that burden in the final rule.
Another stated that requiring detailed information on the location of
all repaired leaks with the type of verification test would be a
substantial burden and would require enhanced service records tailored
to individual equipment. The commenter suggested EPA require instead
only the date and results of initial and follow-up verification tests.
EPA responds that the Agency recognizes the concerns about the
extent of the proposed recordkeeping burden. EPA is finalizing the
recordkeeping requirements as proposed but is modifying the final rule
to reduce the number of such records. First, EPA is only requiring leak
inspections on systems that have exceeded the applicable leak rate,
rather than on all appliances. EPA estimates that the universe of
affected appliances will decrease by 81 percent relative to the
proposal (from 1.5 million to 282,000 appliances). Though there are
fewer leak inspections, EPA estimates a higher total burden because the
Agency has increased the estimates for the costs of each inspection
based on public comments. Second, EPA is only requiring repairs
sufficient to bring the leak rate below the threshold leak rate, rather
than requiring the repair of all identified leaks (unless the owner or
operator chooses to calculate their leak rate using the Rolling Average
method). There should be fewer verification tests and thus less to
record.
EPA is finalizing the leak inspection records as proposed.
Specifically, owners or operators must keep records of leak inspections
that include the date of inspection, the method(s) used to conduct the
leak inspection, a list of the location of each leak that was
identified, and a certification that all visible and accessible parts
of the appliance were inspected. The specificity of the leak inspection
documentation is appropriate because this information will help
demonstrate that the repair has brought the appliance's leak rate below
the threshold leak rate. This information would allow the owner or
operator to demonstrate, if needed, that a further exceedance of the
leak rate threshold after repairing leaks is due to a new leak rather
than a leak that was previously identified but not repaired.
EPA is also finalizing the verification test records as proposed.
Specifically, owners or operators must maintain records that include
the location of the appliance, the date of the verification tests, the
location of all repaired leaks that were tested, the type of
verification test used, and the results of those tests. It is important
to document that each specific repair was verified so as to determine
whether a repair was successful and whether the leak has been
addressed. EPA is not requiring such specificity as a schematic of that
individual appliance showing the locations of all repairs and
verification tests. However, information should allow a technician to
generally know which components of the appliance were repaired.
In this final rule, EPA is establishing the recordkeeping
requirements described generally in this section for owners and
operators of appliances normally containing 50 or more pounds of class
I, class II, or non-exempt substitute refrigerant. All records required
in Sec. 82.157(l) must be maintained for at least three years.
Maintain records documenting the full charge of
appliances;
[[Page 82331]]
Maintain records, such as invoices or other documentation
showing when refrigerant is added or removed from an appliance, when a
leak inspection is performed, when a verification test is conducted,
and when service or maintenance is performed;
If using an automatic leak detection system, maintain
documentation that the system is installed and audited or calibrated
annually and records of when the monitoring system identifies a leak
and the location of the leak;
Maintain retrofit and/or retirement plans;
Maintain retrofit and/or extension requests submitted to
EPA;
If a system is mothballed to suspend a deadline, maintain
records documenting when the system was mothballed and when it was
brought back on-line (i.e., when refrigerant was added back into the
appliance);
Maintain records of purged and destroyed refrigerant if
excluding such refrigerant from the leak rate;
Maintain records to demonstrate a seasonal variance; and
Maintain copies of any reports submitted to EPA under
Sec. 82.157(m).
Technicians. The prior rules required technicians to provide an
invoice or other documentation that includes the amount of ODS
refrigerant added to the owner or operator. This would likely already
include information on the system serviced, the date, and the company/
person servicing the appliance. It would likely also include some
description of the service provided. However, the information that the
technician was required to provide did not match the information that
the owner or operator was required to maintain. The limited records
that the prior regulations required from service technicians also did
not provide information needed by the owner or operator to make
decisions on the fate of the appliance. EPA proposed to align the
records that the technician must provide to the owner or operator with
the ones that the owner or operator are required to maintain.
Multiple commenters noted that owners or operators must expend a
tremendous amount of effort to obtain good records from outside service
providers. Often facility owners are provided incorrect or incomplete
paperwork or are unable to obtain paperwork at all. The commenters were
generally supportive of EPA's proposal that would make it a requirement
for technicians to provide the necessary information to the owner or
operator of the appliance. However, one commenter stated that the
record for the proposed rule does not justify the extent of records
that technicians must provide to owners/operators and suggested that
EPA maintain only the current recordkeeping requirements for
technicians.
Multiple commenters requested that EPA remove the proposed
requirement that technicians provide the owner or operator with the
full charge of the appliance or the leak rate calculations because
technicians often do not have sufficient information, such as the date
of last service, to make those calculations. Other commenters requested
that the Agency require the technician provide the owner or operator
with information about the initial and follow-up leak repair
verification tests that matches what EPA proposed to require the owner
or operator to maintain.
After considering the comments, EPA is finalizing its proposal to
align the records that the technician must provide to the owner or
operator with the records that the owner or operator are required to
maintain, with a few exceptions described below. In response to the
comment that EPA maintain only the current recordkeeping requirements
for technicians, the service technician is generally in the better
position to generate those records as they are performing the service
activities and usually are the expert that the appliance owner or
operator is relying on to make informed decisions about their
appliances. Finalizing these requirements for technicians should help
ensure that the appropriate records are created so that they can be
maintained.
Specifically, EPA is requiring that whenever an appliance with 50
or more pounds of refrigerant is maintained, serviced, repaired, or
disposed of, the technician must provide the owner or operator with an
invoice or other documentation that indicates (1) the identity and
location of the appliance; (2) the date and type of maintenance,
service, repair, or disposal performed, including the location of
repairs and the results of any verification tests or leak inspections
(if applicable); (3) the name and contact information of the person
performing the maintenance, service, repair, or disposal; and (4) the
amount and type of refrigerant added to and/or removed from the
appliance (if applicable).
Based on the comments, EPA is not finalizing a requirement that the
technician calculate the leak rate or provide the owner or operator
with a record indicating the full charge of the appliance. The rules as
finalized require the technician to provide information that they are
best positioned to gather and that is relevant to calculating the leak
rate and full charge, but the owner or operator is well positioned to
determine those numbers because they should have the historical
information that informs that calculation. Accordingly, it is not
necessary for the technician to calculate the leak rate and EPA has
modified the requirement at Sec. 82.157(b) to explicitly state that it
is the owner or operator's responsibility to calculate the leak rate.
Because the owner and operator is also required to calculate the full
charge it is no longer a relevant record for the technician to provide.
The final rule also explicitly requires that persons conducting the
initial or follow-up leak repair verification test must, upon
conclusion of that service, provide the documentation needed to meet
the owner or operator's recordkeeping requirements. This furthers the
goal of aligning the technician and owner or operator's recordkeeping
requirements.
14. Reporting
The existing regulations require that owners or operators report to
EPA in certain circumstances. EPA is not making changes to those
reporting requirements in this final rule:
If the owner or operator is requesting an extension to the
30-day (or 120-day) requirement to complete repairs pursuant to Sec.
82.157(f);
If the owner or operator is requesting an extension to
complete a retrofit or retirement of an appliance pursuant to Sec.
82.157(i); or
If the owner or operator is excluding purged refrigerants
that are destroyed from annual leak rate calculations pursuant to Sec.
82.157(k).
EPA is also finalizing two reporting requirements that were not
contained in the proposed rule. First, EPA is requiring at Sec.
82.157(j) that owners or operators submit a report if their appliance
leaks 125 percent or more of the full charge in a calendar year and
thereby triggers the chronically leaking appliances provision. EPA is
adding this report to provide added flexibility, so that appliances
that have leaked 125 percent of their full charge or greater do not
necessarily need to be retired or retrofitted provided there is an
explanation for the leak. This report must explain the reason for the
leak rate of 125 percent or greater and could potentially include,
among other things, the documentation prepared to extend the repair
requirement or a description of catastrophic events. As discussed
earlier in this notice, this reporting requirement is based on comments
received to remove the two-year leak
[[Page 82332]]
limit and allow for case-by-case evaluations.
Second, this final rule contains a provision allowing owners or
operators who are retrofitting or retiring an appliance to request that
EPA relieve them of that obligation if they can establish within 180
days of the plan's date that the appliance no longer exceeds the
applicable leak rate. This provision is contained in the prior
regulations. EPA had proposed to remove it, but based on comments
requesting that it be left in place, EPA is not finalizing the proposal
to remove it. EPA is requiring information be included in the report
that is similar to the previously existing requirement except EPA is
additionally requiring a description of why the repair was not
conducted within the time frames required under paragraphs (d) and (f)
of this section. In addition, it must include a signed statement that
all identified leaks will be repaired and an estimate of when those
repairs will be completed (not to exceed one year from date of the
plan). These additional elements are necessary to ensure that this
provision is not used as a way to circumvent the required time frames
for repair.
EPA is not finalizing the proposed requirement for the report that
would have accompanied an extension request from federal agencies to
conduct less frequent leak inspections in the proposed rule. EPA is not
finalizing this proposed extension and thus the reporting element is no
longer necessary.
EPA is also finalizing the requirement that all reports be
submitted to EPA via email at 608reports@epa.gov, as proposed. If the
submission contains confidential business information, reports can be
mailed to the address in Sec. 82.160. This should reduce costs and
streamline the reporting process for both EPA and those reporting. It
is also consistent with EPA's Next Generation Compliance initiative.
Commenters generally supported the move towards electronic reporting
and recordkeeping.
Two commenters requested that the Agency require that owners and
operators keep a record of the amount of refrigerant leaked annually to
the atmosphere by refrigerant type and that this information be
reported to EPA. Additionally, the commenters requested that EPA make
the data related to the emissions of refrigerants publicly available.
In accordance with the transparency element of the Next Generation
Compliance initiative, the general public could then point out
violations and owners and operators would have an incentive to correct
excessively leaking appliances.
EPA responds that in general, EPA is not requiring that owners or
operators calculate the sum total of refrigerant leaked annually or
submit those data to EPA. The volume of reporting would be substantial
and for a majority of appliances would be of limited value to EPA or
the general public. However, owners or operators of equipment that
leaks 125 percent of the total charge in a calendar year will have to
calculate their total refrigerant additions to determine whether they
have met that threshold. EPA finds that there is merit for those
chronically leaking systems to perform this calculation and report to
EPA because that will encourage those owners or operators to take steps
to ensure they do not meet or exceed that threshold.
G. Revisions to the Standards for Recovery and/or Recycling Equipment
in Sec. 82.158
1. Background
Under the prior regulations, all refrigerant recovery and/or
recycling equipment manufactured or imported on or after November 15,
1993, and used during the maintenance, service, repair, or disposal of
appliances containing an ODS refrigerant must be certified by an
approved equipment testing organization to ensure that it meets certain
performance standards. These standards may vary for certain equipment
intended for use with the disposal of small appliances. These
performance standards were contained in tables 2 and 3 of Sec. 82.158,
as well as appendices B1, B2, and C of subpart F. EPA based these
standards in large part on ARI (now AHRI) Standard 740-1993 and ARI
Standard 740-1995. Recovery and/or recycling equipment intended for use
during the maintenance, service, repair, or disposal of MVAC and MVAC-
like appliances must meet the standards in subpart B. The regulations
pertaining to MVACs refer to subpart B and state that such recovery
and/or recycling equipment must meet the standards of Sec. 82.36(a).
2. Extension to Substitute Refrigerants
In the revisions finalized in this rule, EPA is requiring that all
recovery and/or recycling equipment manufactured or imported for use
during the maintenance, service, repair, or disposal of appliances
(except small appliances, MVACs, and MVAC-like appliances) that contain
non-exempt substitute refrigerants be certified by an approved
equipment testing organization as being capable of meeting certain
performance standards. EPA is requiring that after January 1, 2017, all
newly manufactured or imported recovery and/or recycling equipment used
during the disposal of all appliances, including MVACs and MVAC-like
appliances, also be certified. One commenter agreed that recovery and/
or recycling equipment for use with non-exempt substitute refrigerants
should be certified. This comment supports EPA's approach.
EPA proposed that all existing recovery and/or recycling equipment
that met certification requirements for ODS prior to this rulemaking
would be considered as certified for non-exempt substitute
refrigerants. EPA is further clarifying that if a person who recovers
refrigerant has recovery equipment that was certified as meeting the
requirements for an ODS refrigerant, it can be used to recover other
non-flammable refrigerants in that pressure category. For example,
recovery equipment manufactured in 2015 that was certified to recover
HCFC-22 can be used to recover other non-ODS refrigerants like R-407A,
R-407C, or R-410A. However, proper care should be taken to prevent
refrigerant mixing if using the same recovery device with multiple
refrigerants.
One commenter noted that additional equipment testing would be
required if the equipment manufacturers want older equipment to handle
newer non-exempt substitute refrigerants. EPA responds that all
equipment manufactured or imported on or after January 1, 2017, must be
tested under the new standards. This is true of older equipment designs
previously certified for ODS which have not been tested for substitute
refrigerants. However, any equipment manufactured or imported prior to
the effective date is grandfathered and does not have to be
recertified. Technicians can continue to use previously certified
recovery equipment that they already own. As has been the case when EPA
has previously changed equipment standards, EPA does not require
technicians to recertify or replace their existing equipment.
EPA is adding appendices B3 and B4, based on the AHRI Standard 740-
2016, Performance Rating of Refrigerant Recovery Equipment and
Recovery/Recycling Equipment. The recovery standard is the same in both
appendices; the difference between the two, as discussed later in this
notice, is that appendix B4 contains additional safety standards for
flammable refrigerants. EPA proposed to base appendices B3 and B4 on
AHRI Standard 740-2015 but is using the most recent version of that
standard for the final rule. All new equipment manufactured or imported
on or after
[[Page 82333]]
January 1, 2017, must meet the standards in appendices B3 or B4 and
table 2. The evacuation level would depend upon the saturation pressure
of the refrigerant. EPA is also updating appendix C ``Method for
Testing Recovery Devices for Use with Small Appliances'' to reference
all refrigerants, instead of the previously referenced CFC-12.
Certifying refrigerant recovery and/or recycling equipment for use
with non-exempt substitutes serves multiple purposes. First,
certification provides reliable information on the ability of equipment
to minimize emissions of these substitute refrigerants, by measuring
and/or establishing standards for recovery efficiency (vacuum level)
and maximum emissions from air purging, oil draining, equipment
clearing, and hose permeation. The fact that the equipment minimizes
emissions is part of our consideration of whether emissions associated
with using recovery equipment are considered de minimis releases.
Second, certification provides reliable information on the equipment's
ability to clear itself when switching between refrigerants. Without
sufficient clearing capability, equipment may retain residual
refrigerant in its condenser, which would then be mixed with the next
batch of refrigerant recovered by the equipment. Because mixed
refrigerant can be difficult if not impossible to reclaim (depending on
how cross-contaminated the mixed refrigerant is) and expensive to
destroy, it is much more likely than unmixed refrigerant to be vented
to the atmosphere. Third, certification provides reliable information
on the equipment's recovery speed. Without such information,
technicians may purchase equipment that recovers too slowly, tempting
them to interrupt recovery before it is complete. As discussed in the
1993 Rule, where EPA established the equipment certification
requirements, the information on equipment performance provided by an
independent third-party testing organization is more reliable than that
provided by other sources, such as equipment manufacturers (58 FR
28686-28687).
Finally, certification embraces Next Generation Compliance
principles. Users of certified equipment, when following the
manufacturer's instructions, will be in compliance with the regulatory
standards for the evacuation of refrigerant.
Flammable Refrigerants. Different treatment is warranted for non-
exempt flammable refrigerants. As proposed, EPA is adding standards for
the recovery of flammable non-exempt refrigerants to appendix B4.
Currently, six flammable non-exempt substitute refrigerants are
approved for use in stationary refrigeration and air-conditioning
equipment: HFC-32, HFC-152a, R-406A, R-411A, R-411B, and HFO-1234ze(E).
EPA is using AHRI Standard 740-2016 as the basis for the recycling
and/or recovery equipment requirements in appendix B3. This standard
does not address the safety of recovering flammable refrigerants. EPA
is therefore creating appendix B4, which requires the recovery/
recycling performance of appendix B3 and the safety performance of
Underwriters Laboratories (UL) Standard 1963-2011, Supplement SB--
Requirements for Refrigerant Recovery/Recycling Equipment Intended for
Use with a Flammable Refrigerant. All recycling and/or recovery
equipment manufactured or imported after January 1, 2017, that are to
be used with flammable non-exempt substitute refrigerants must meet
this new standard. EPA is incorporating UL 1963 by reference and
modifying the testing protocol in appendix B3 to account for
flammability concerns during testing.
Two testing organizations supported using UL 1963 to address
flammable refrigerants. One commenter preferred that EPA reference UL
1963 directly within appendix B4 rather than establishing separate
requirements in appendix B4 that are based on that standard. Separate
requirements published outside of that standard would make it more
difficult to apply the standard. EPA responds that appendix B4 refers
to UL 1963, Supplement SB, and does not reproduce the standard in the
appendix due to copyright concerns.
Another commenter strongly recommended that a label be required on
all products certified to handle flammable refrigerants. EPA responds
that UL 1963, Supplement SB has requirements for markings that must be
placed on recovery and/or recycling equipment certified to handle
flammable refrigerants. Because EPA is incorporating those standards in
appendix B4 by reference, EPA is requiring those markings.
3. Removing the Certification by Owners of Recovery and/or Recycling
Equipment
As proposed, EPA is removing the requirement under Sec. 82.162
that anyone who maintains, services, repairs, or disposes of appliances
containing an ODS submit a signed statement to the appropriate EPA
Regional office stating that they own recovery and/or recycling
equipment and are complying with the applicable requirements of subpart
F. EPA received one comment in support of taking this action.
EPA created this provision in 1993 when the Agency first required
that recovery and/or recycling equipment be certified and that
technicians use certified equipment. At the time, the use and
availability of recovery and/or recycling equipment was not as
commonplace as it is today. Equipment certification by owners
demonstrated to EPA that equipment was available for use by certified
technicians. In particular, EPA was interested in the capabilities of
grandfathered, or pre-1993, equipment. Since certified recovery and/or
recycling equipment is now commonly available, EPA no longer needs the
information contained in the certification statement such as the number
of service trucks and personally identifiable information of equipment
owners.
4. Clarifications and Edits for Readability
EPA is reorganizing Sec. 82.158 by appliance type. EPA is also
combining tables 2 and 3, which contain the levels of evacuation that
must be achieved by recovery and/or recycling equipment, to remove
inconsistencies in terminology and formatting.
EPA also revised how the requirements for recovery equipment used
on small appliances are written. In general, the requirement is that
the equipment is capable of recovering 90 percent of the refrigerant in
the test stand when the compressor of the test stand is operational and
80 percent of the refrigerant when the compressor of the test stand is
not operational. In addition, there are secondary considerations that
could allow for the certification of recovery equipment based on when
that equipment was manufactured or imported.
H. Revisions to the Standards for Equipment Testing Organizations in
Sec. 82.160
EPA relies on independent third party organizations approved by the
EPA Administrator to certify that refrigerant recovery and/or recycling
equipment meets the standards in subpart F. Any equipment testing
organization may apply for approval so long as they can verify that
they have the expertise and technical capability to verify the
performance of the recovery and/or recycling equipment, have no
conflict of interest (e.g., with equipment manufacturers), and receive
no direct or indirect financial benefit from the outcome of
certification testing.
[[Page 82334]]
Any new certifying organization must have expertise to certify
equipment that is used to recover or recycle refrigerants that are
subject to this subpart. This means that they must be able to evaluate
and certify HFCs and other non-exempt substitute refrigerants,
including flammable refrigerants. Because the same expertise is needed
to test equipment used for ODS and substitute refrigerants, equipment
certifying organizations that have already been approved by EPA may
continue to certify equipment designed for substitute refrigerants
without needing to re-apply. In comments on the proposed rule, two
certifying organizations agreed that currently approved organizations
should not have to reapply to certify equipment used to recycle and/or
recover substitute refrigerants and that the same expertise is needed
to test equipment used for ODS and substitutes.
EPA is removing the requirement that organizations provide a list
of all certified equipment to EPA within 30 days of the organization's
approval by EPA and annually at the end of each calendar year
thereafter. Instead, EPA is requiring that the certified equipment
testing organizations publish online a list of equipment that meets EPA
requirements. This list must include the manufacturer and the name and/
or serial number of a newly certified model line, which is the
information that the certifying organizations had to provide to EPA.
This list must be updated no less than once per year, but an
organization can choose to update the list more frequently. Online
lists must contain certified equipment until three years after that
equipment is no longer offered for sale. Making the information
available online will be no more burdensome for the testing
organization than submitting the list to EPA. Online publication is
also a better method of communicating these findings to the public and
the service/repair industry than sending the information to EPA. Two
certifying organizations commented that they support these revisions
because they already make the information publicly available through
their Web sites.
EPA is also adding to the regulatory text the timing for records
retention that had previously only been found in guidance documents.
The regulation now specifies that all records must be maintained for
three years after the equipment is no longer offered for sale. EPA is
adopting a similar timeframe for the online lists of certified
equipment.
EPA also encourages the use of electronic reporting and has
established the email address 608reports@epa.gov to receive
applications from organizations seeking to be approved under this
section and the required notification if a previously certified model
line fails to meet the standards upon retesting.
I. Revisions to the Technician Certification Requirements in Sec.
82.161
1. Background
The prior regulations at Sec. 82.161 required the certification of
all individuals who maintain, service, or repair air-conditioning and
refrigeration equipment containing an ODS, other than MVACs which are
addressed in a separate subpart of the regulations. This group includes
installers, contractor employees, in-house service personnel, and
anyone else who performs installation, service, maintenance, or repair
that might reasonably have the opportunity to release ODS refrigerants
to the environment. In addition, individuals disposing of air-
conditioning and refrigeration equipment other than small appliances,
MVACs, and MVAC-like appliances must be certified. Individuals
disposing of small appliances, MVACs, and MVAC-like appliances do not
need to be certified.
Under those rules, technicians become certified by passing a test
containing questions drawn from a bank developed by EPA with input from
industry educational organizations with a certification program
approved by EPA. The test includes questions on the role of CFCs and
HCFCs in stratospheric ozone depletion, the requirements of the subpart
F, and proper techniques for recycling and conserving refrigerant. EPA
makes the question bank available to certifying organizations that
demonstrate that they can properly generate, track, administer, and
grade tests; issue certificates; and keep records.
2. Extension to Substitute Refrigerants
In this final rule, EPA is finalizing its proposal to extend the
certification requirements to technicians who work with non-exempt
substitute refrigerants.
Persons who are not certified technicians are more likely to
intentionally or inadvertently release refrigerant in the course of
servicing, maintaining, repairing, or disposing of refrigeration and
air conditioning equipment. One commenter stated that they believe most
of the intentional venting of refrigerant is done by individuals who
are not certified technicians. Another commenter noted that they have
observed a lack of competence within the equipment servicing sectors
leading in many instances to the improper handling of refrigerants or
servicing of mechanical equipment.
EPA responds that these comments support the importance of
extending the technician certification requirement, as well as other
provisions of the refrigerant management rules, to non-exempt
substitute refrigerants. Certified technicians are more likely to
understand how and why to recover and recycle refrigerants and to have
the proper equipment to do so. Technician certification helps ensure
that technicians know refrigerant recovery requirements and techniques.
The prior regulations did not specifically prohibit an uncertified
individual from opening an air conditioner that contains a substitute
refrigerant in order to add a substitute refrigerant or replace
components. Similarly, the regulations did not specifically prohibit an
uncertified individual from opening an air conditioner that contains an
ODS refrigerant to add ODS refrigerant (assuming a certified technician
purchased the ODS refrigerant). While the venting prohibition generally
applies to these actions, without training or certification the
individual performing such servicing activities may not even be aware
of the prohibition against knowingly venting or otherwise releasing
refrigerant.
Tips reported to the Agency indicate that servicing by uncertified
individuals occurs. One commenter asserted that a substantial number of
technicians, possibly up to 25 percent, are operating without
certification. EPA responds that this information, if true, would
further support the extension of the technician certification
requirement to non-exempt substitute refrigerants. Requiring that
anyone opening an appliance (except those containing only exempt
substitute refrigerants) be a certified technician will reduce
emissions caused by uninformed service personnel and will facilitate
enforcement of the venting prohibition, especially when coupled with
the recordkeeping requirement for appliances containing more than five
and less than 50 pounds of refrigerant.
Many companies require certification of their technicians
regardless of the type of refrigerant being used. The principles of
proper handling, recovery, and disposal of non-exempt substitute
refrigerants are similar if not identical to those for ODS
refrigerants, except that additional safeguards are advisable for
flammable refrigerants. The fact that some individuals may be working
on non-ODS appliances without certification and without following safe
handling practices places them at a disadvantage with respect to
[[Page 82335]]
compliance. Because there is a reasonable expectation that an ODS or
non-exempt substitute refrigerant could be released into the
environment in the course of that work if appropriate precautions and
practices are not followed, requiring technician certification for
individuals performing such work ensures that they have the information
necessary to comply with the regulatory requirements and with the
venting prohibition, as well as to minimize emissions. Accordingly, to
promote proper practices or at least remove barriers for compliance and
for environmental protection, EPA is requiring certification for anyone
working on an appliance that contains a non-exempt refrigerant.
Many commenters supported extending the technician certification
requirement for the handling of substitute refrigerants. While some
commenters stated that EPA does not have authority to extend section
608 regulations to substitutes, those commenters did not raise the
specific issue of technician certification. EPA addresses those general
comments about its authority for this action in Section III of this
notice. Two commenters recommended extending the technician
certification requirement to flammable refrigerants. Three commenters
urged EPA to extend the technician certification requirement for the
handling of all refrigerants, even if they are exempt from the venting
prohibition. These commenters stated that treating all refrigerants
equally will provide consistency and clarity in the industry. Other
commenters stated that many of the exempt refrigerants have special
considerations such as flammability or toxicity that require care
during handling and servicing. As noted previously, some commenters
stated that the sales restriction should be extended to hydrocarbons.
These commenters noted that the flammability of these refrigerants
poses far greater risks than that of R-22 when handling it and
servicing equipment. One commenter recommended that if the sales
restriction was extended to flammable refrigerants then it should be
extended to all exempt refrigerants.
As stated in the proposed rule, EPA is not extending the technician
certification requirement (and thus the sales restriction) to
individuals maintaining, servicing, repairing, or disposing of
appliances containing substitute refrigerants that are exempt from the
venting prohibition. EPA has exempted substitutes, at least in the
specified end-uses, from the venting prohibition because the Agency has
determined for purposes of section 608(c) that they do not pose a
threat to the environment when released. For water or nitrogen,
technician certification would provide no environmental benefit nor
would it increase technician safety. For ammonia or chlorine, other
regulations address the risks related to those specific compounds (for
example, OSHA regulations that address risk to technician safety). The
types of refrigeration equipment that use these exempt substitute
refrigerants are also significantly different from an engineering
standpoint from the equipment that uses ODS or HFC refrigerants.
Therefore, there is little potential for ODS and these exempt
substitute refrigerants to be mixed and intentionally released to the
environment.
Hydrocarbon refrigerants may be different than the other substitute
refrigerants. EPA notes that all end-uses for hydrocarbons currently
authorized under SNAP are also exempted under the venting prohibition.
The Agency did not propose and is not establishing a technician
certification requirement or sales restriction for those exempt
substitute refrigerants. The Agency may consider in future whether
there are any regulatory or other measures that would be appropriate to
address the handling of exempt flammable refrigerants.
As a result of today's action, flammable substitutes that have not
been exempted from the venting prohibition in a particular end-use are
subject to the requirements of subpart F, including the sales
restriction and the technician certification requirements. Unlike the
other exempt substitutes, hydrocarbons are being sold to service
existing ODS and HFC equipment for which this refrigerant is not listed
as acceptable under SNAP. Specifically, R-22a, which is propane, in
some cases mixed with isobutane and an odorant, has been marketed as a
``drop-in'' (or more appropriately termed a ``retrofit'') replacement
for existing equipment designed for use with HCFCs and/or HFCs. Often
these are MVACs or residential split systems.
R-22a has not been submitted to SNAP for review for these uses, and
EPA has not listed propane as acceptable for these end-uses under the
SNAP program. Accordingly, EPA considers its introduction into
interstate commerce for this use a violation of the SNAP regulations.
In addition, EPA has not exempted R-22a or propane used as a retrofit
in existing HCFC-22 appliances from the venting prohibition. As a
result, R-22a and propane are subject to the requirements of subpart F
in such non-exempt end-uses, including the sales restriction and the
technician certification requirements.
The Agency has learned through its recent enforcement actions
against Enviro-Safe and Northcutt, two distributors of R-22a, and
through other investigations that R-22a is being sold to both consumers
and technicians. Often the buyers are not aware there is a difference
between R-22 and R-22a, or even that R-22a is flammable. As a result,
appliances have exploded and technicians have been injured. Technicians
need to be aware of the safety concerns of using such refrigerant for
themselves or subsequent technicians who service ODS or HFC equipment
that inappropriately contains hydrocarbons. Consumers must also not
have easy access to this refrigerant for their own safety. Applying the
sales restriction to unapproved uses of hydrocarbon refrigerants and
educating technicians through the certification program will reduce
safety risks and prevent the mixing (and subsequent venting) of ODS and
HFC refrigerants with these unapproved alternatives.
One commenter, while supportive of extending the technician
certification requirements to those working with non-exempt substitute
refrigerants, disagreed with the premise that failing to require
certification will result in the release and mixture of ODS and non-ODS
refrigerants.
EPA responds that information about the illegal use of R-22a as a
replacement for R-22 indicates to EPA that people are purchasing their
own refrigerant and mixing it with HCFCs. The consequences of
inappropriately mixing refrigerants include significant losses in
performance and energy efficiency, damage to equipment, the lost value
of the mixed refrigerant (which is at best difficult, and often
impossible, to separate into the component refrigerants), and costs for
destroying mixed refrigerants. Refrigerant mixture also leads both
directly and indirectly to refrigerant release. Mixture leads directly
to release because mixtures of certain refrigerants, such as R-22 and
R-134a, have higher pressures than either component alone. Thus,
pressure-sensitive components such as air purge devices on recycling
machines and relief devices on appliances may be activated by these
mixtures, venting the refrigerant to the atmosphere. Purge devices in
particular are often set to open when the pressure of the recovery
cylinder's contents rises more than 5-10 psi above the expected
saturation pressure for the refrigerant; this margin is exceeded by R-
22/R-134a mixtures containing more than ten percent of the
contaminating refrigerant.
[[Page 82336]]
Refrigerant mixture also reduces recycling and leads indirectly to
release. First, mixed refrigerants lose their value for reclamation
because it is difficult to separate the component refrigerants.
Typically, reclaimers will pay refrigerant distributors for recovered
refrigerant. Reclaimers may actually charge money to accept highly
mixed refrigerant or not take it at all. Mixed refrigerants cost money
to reclaim or destroy and this cost could provide a financial incentive
for illegal venting. Second, the direct releases and equipment
breakdowns caused by contamination lead to increased equipment
servicing, which itself leads to unavoidable releases of refrigerant.
Thus, failure to require certification for people working with
substitute refrigerants would increase the probability of both
substitute and ozone-depleting refrigerants being emitted to the
atmosphere.
As noted previously in this notice, certified technicians are more
likely to understand how and why to recover and recycle refrigerants
and to have the proper equipment to do so. The skills and knowledge
that certified technicians have reduces the likelihood that they would
mix or release ODS and non-ODS refrigerants. For these reasons, EPA is
requiring technician certification for persons working with non-exempt
substitutes.
3. Updated Test Bank
EPA is currently updating the technician certification test bank
through a process separate from this rulemaking. While this is not a
regulatory change--the Agency can update the test bank when appropriate
without promulgating a new regulation--it aligns with EPA's efforts to
extend the refrigerant management regulations to substitute
refrigerants. Currently, the questions focus on CFCs and HCFCs, even
though CFCs have been phased out for nearly twenty years and the
predominant HCFC, HCFC-22, will be phased out by 2020.
As part of the public participation process for this rule,
stakeholders provided input regarding updating the test bank questions.
Many commenters supported updating the test bank, especially given the
new refrigerants and technologies that have become available since the
test was initially developed. Commenters provided suggestions for
numerous topics that should be covered by the exam. These include
placing greater focus on the venting prohibition, recovery best
practices, safe handling of flammable refrigerants, use of new
refrigerants, financial benefits of refrigerant recycling, and the
costs of non-compliance related to equipment efficiency, equipment
life, and environmental harm. One commenter observed that the core,
Type II, and Type III tests should now include questions on
verification testing since this will be a new requirement of
technicians servicing comfort cooling and commercial refrigeration
appliances under the leak repair provisions.
EPA responds that all of these suggested topics fit into the
testing topics listed in appendix D. EPA intends to consider these
potential topics when updating the test bank questions. EPA has begun
reviewing the test bank and consulting with certification and training
organizations to identify questions that should be updated, replaced,
or removed. EPA also intends to incorporate new and revised elements of
the National Recycling and Emission Reduction Program that are being
finalized in this action in the updated test bank. As such, the test
bank will not be completed until after publication of the final rule.
Testing organizations have requested time to update their training and
testing materials before the new questions go into effect. EPA
anticipates the new questions will be added to all exams by mid- to
late 2017.
J. Revisions to the Technician Certification Program Requirements in
Sec. 82.161
1. Background
The regulations at Sec. 82.161 require that organizations
operating technician certification programs apply to EPA to have their
programs approved. The application process ensures that technician
certification programs meet minimum standards for generating, tracking,
and grading tests, as well as keeping records. Approved technician
certification programs must keep records of the names of technicians
they have certified and the unique numbers assigned to each technician
certified through their programs. These records allow both the Agency
and the certification program to verify certification claims and to
monitor the certification process. Approved technician certification
programs also must submit reports to EPA every six months containing
information on the number of students certified and the pass/fail rate.
Such reports allow the Agency to monitor program compliance.
2. Extension to Substitute Refrigerants
As discussed previously, EPA is requiring in this final rule that
technicians who work with non-exempt substitute refrigerants be
certified. By extension, EPA is also requiring that technician
certification programs offer tests to certify those technicians. This
should not require significant changes to current practices other than
using the updated test bank once available and the revisions discussed
in this section. EPA is not requiring that current certification
programs recertify based on any of the revisions in this final rule.
EPA did not receive comment specifically on these proposed revisions.
3. Posting Lists of Certified Technicians
In regulatory revisions finalized in this rule, EPA is requiring
that certifying organizations publish online lists of the technicians
certified by that organization. However, EPA is not establishing a
single ``database'' nor requiring certified organizations to create
their own databases as was contemplated in the proposed rule. The
primary intent of these published lists is to assist technicians who
have lost their certification cards and reduce the burden currently
facing the Agency and technician certification programs in assisting
technicians who have lost their certification cards as described in the
proposed rule. These goals can be accomplished for all future
technicians through the publication of limited information online.
Technicians should be able to find out who certified them through a
simple web search.
In the proposed rule, EPA described this as a database and
discussed one of its possible uses as a tool refrigerant wholesalers
could use to verify their customer is a certified technician. Many
commenters supported the creation of a single technician database
maintained by EPA. A few of those commenters encouraged EPA to include
all certified technicians, not just newly certified technicians,
because an incomplete list would have only marginal value for anyone
referencing the list prior to selling refrigerant. Some refrigerant
distributors wanted assurance that their refrigerant sales would not be
adversely affected or that they would not be held responsible for
errors or omissions in the technician database. One commenter who
employs in-house technicians stated that their technicians would prefer
not to be included in such a database. The commenter requested that
there not be a database, or if there is one that technicians should
have to affirmatively opt in, rather than being given the option of
opting out.
EPA responds that the Agency did consider the possibility of a
database that could be used to enforce the sales restriction. EPA
agrees that in order to be used for regulatory purposes the
[[Page 82337]]
content of the database would need to be complete and continuously
updated. The only manner the Agency could ensure a complete list of
technicians would be to require technicians to recertify, which EPA did
not propose. EPA did not propose to require that certification programs
list everyone currently in their records. While this may assist current
technicians who have lost their cards, listing the hundreds of
thousands of technicians certified over the last twenty-two years could
be overly burdensome. This would also not provide technicians with the
opportunity to opt out.
As this requirement is primarily for the benefit of the technician,
EPA is requiring technician certification programs to notify
individuals taking the certification exam that information will be
posted online and allow them to opt out. Allowing the opt out is
sufficient for those technicians who do not want to be listed;
requiring an opt in to be listed, on the other hand, would reduce the
utility of the lists. EPA is also exempting federal government-run
programs from this requirement as proposed. The public release of
government and military personnel names linking them to their federal
employment could present significant privacy and security concerns.
EPA did not receive comment on the proposed information that would
need to be published. EPA is therefore finalizing as proposed the
following information requirements: The first name, middle initial, and
last name of the certified technician, the technician's city of
residence when taking the test, the type(s) of certification received,
and the date each certification was received. EPA is not requiring any
specific format for providing this information. EPA is aware that some
certifying organizations already provide this information online to
their technicians and the Agency does not intend to require that they
change how they offer the information so long as the required data
elements are included. Rather than continuous updating, as would have
been required of a database, EPA is requiring that the lists be updated
annually, although individual organizations may choose to update their
lists more frequently.
4. Grandfathering Provisions
In this rulemaking, EPA is finalizing its proposal to remove
provisions related to voluntary certification programs at Sec.
82.161(g). This program was created to allow technicians who were
trained prior to the establishment of approved technician certification
programs to be recognized as certified technicians. This program
expired in 1994 and is no longer necessary. EPA did not receive any
comments on this proposal.
5. Certification Cards
As proposed, EPA is finalizing revisions to the requirements for
the required text that is printed on certification cards. Some
organizations told EPA prior to publication of the proposed rule that
the language used on the certification card implies that a technician
as defined in subpart F may be trained in other aspects of equipment
installation. The primary purpose of the 608 certification card is for
a technician to prove to a vendor that they understand the
environmental impacts of mishandling refrigerants and are legally
permitted to perform the necessary maintenance, servicing, repair, or
disposal work under CAA section 608. While this certification qualifies
an individual to maintain, service, repair, or dispose of appliances
containing certain refrigerants for purposes of CAA section 608, the
608 exam is less focused on the operational and engineering aspects of
refrigeration and air-conditioning equipment. Accordingly, the 608
certification is not intended to serve as a general license for
individuals who work on such equipment.
To more accurately reflect the knowledge needed to obtain the
certification, EPA is updating the card to read: ``[Name of person] has
successfully passed a [Type I, Type II, Type III, and/or Universal, as
appropriate] exam on how to responsibly handle refrigerants as required
by EPA's National Recycling and Emission Reduction Program.''
EPA stated in the 1993 Rule establishing the technician
certification requirements that standardized language will decrease
administrative costs and aid in enforcement. In addition, it was
intended to ease burden on refrigerant wholesalers who must inspect the
cards to verify the certification of technicians. Those principles also
apply to this rulemaking, and updating the information required on the
certification card should improve clarity and should not result in any
new administrative costs. EPA notes that the Agency is not requiring
that currently certified technicians obtain new cards with the updated
language. The new language applies only to cards issued to newly
certified technicians. In the event where a technician is requesting a
replacement for a lost card, EPA encourages that the certifying
organization use the updated language whenever feasible.
6. Updates to Appendix D
In this rulemaking, EPA is also finalizing minor edits to appendix
D ``Standards for Becoming a Certifying Program for Technicians.'' EPA
did not receive any comments on this element of the proposal and is
finalizing the revisions as proposed. More specifically, EPA is
updating the description of test content to include the environmental
impact of not just ODS but also substitute refrigerants. EPA is
removing paragraphs (i) through (k) on approval process,
grandfathering, and sample application as they are outdated, redundant,
or self-explanatory. EPA is removing the reference that EPA will
periodically publish information on the fees charged by the programs as
the Agency no longer collects this information. To protect the private
information of technicians and minimize the potential for fraud, EPA is
removing social security numbers as an acceptable form of
identification for Type I technicians using the mail-in format and
stating that social security numbers cannot be used in the unique
certification number assigned to newly certified technicians. EPA also
is requiring that certifying organizations provide a hand-out or
electronic communication to technicians after they have taken the
certification test explaining who provided the training, who to contact
with questions regarding the certification process, and when they
should expect to receive their score, and if they passed, their
certification cards.
K. Revisions to the Reclamation Requirements in Sec. 82.164
1. Background
The regulations at Sec. 82.164 required that anyone reclaiming
used ODS refrigerant for sale to a new owner, except for people
properly certified under subpart F prior to May 11, 2004, is required
to reprocess refrigerant to standards laid out in appendix A (based on
ARI Standard 700-1995, Specification for Fluorocarbons and Other
Refrigerants), release no more than 1.5 percent of the refrigerant
during the reclamation process, dispose of wastes from the reclamation
process in accordance with all applicable laws and regulations, and
adhere to specific recordkeeping and reporting requirements.
2. Extension to Additional Substitute Refrigerants
In this final rule, EPA is extending the reclamation standards for
refrigerants in appendix A to additional non-ozone depleting substitute
refrigerants. Most of the refrigerants in appendix A were
[[Page 82338]]
single component ODS refrigerants or blends containing an ODS
component. However, appendix A had previously contained a few commonly
used substitute refrigerants that have been used for a long time, such
as R-407C and R-410A. EPA is updating appendix A to include newer HFCs,
PFCs, HFOs, and other refrigerants based on the standards contained in
the latest AHRI Standard 700, Specifications for Refrigerants. EPA
proposed to base appendix A on AHRI Standard 740-2015, with the
exception that the Agency would maintain the current unsaturates limit
of 0.5 percent by weight. Recently AHRI released Standard 740-2016
which includes additional refrigerants and an impurity standard for R-
40. EPA is finalizing appendix A based on the recent AHRI Standard 740-
2016 by adding the new refrigerants, but not the unsaturates limit or
R-40 impurity standard.
The standard in the previously existing rules was adopted in 1995.
It is appropriate to update this standard to ensure that refrigerants
developed in the last twenty years are reclaimed properly. While
industry has established standards for these new refrigerants, EPA's
regulations have not kept pace. Therefore, reclaimers have not had a
legal obligation to achieve such standards. Instilling confidence in
the market that reclaimed refrigerant is as good as virgin refrigerant
is crucial to its widespread use. Ensuring a healthy market for
reclaimed refrigerant is also crucial to support the value of used
refrigerant and provide incentives through market forces to recover
used gas from appliances during their maintenance, servicing, repair,
or disposal.
Many refrigerant reclaimers and distributors commented that the
current 0.5 percent unsaturates limit is appropriate. One commenter
specifies that the reclamation industry as a whole has delivered more
than 200 million pounds of reclaimed refrigerant at that unsaturates
level without any known issues. Another commenter expressed concern
that lowering the unsaturates limit will make successful reclamation
impossible. Other commenters encouraged EPA to incorporate the AHRI
Standard 700-2015, Specifications for Refrigerants, by reference and
establish a process to automatically adopt the latest version of the
AHRI-700 standard. These commenters explained that typically, the
standard is updated to establish purity specifications for each new
substitute refrigerant as it is developed and approved. The commenters
state that this will prevent reclaimers from having to comply with
regulations requiring that they reclaim new refrigerants without any
EPA required standard for those refrigerants.
EPA responds that it is not incorporating either the AHRI Standard
700-2015, Specifications for Refrigerants, or the current AHRI Standard
700-2016, Specifications for Refrigerants by reference. This is because
ASHRAE and AHRI are still conducting further studies on whether and how
to amend the unsaturates limit. It is important to maintain the 0.5
percent unsaturates limit while the standard is still being debated.
Accordingly, rather than incorporating the AHRI Standard 700-2016 by
reference, EPA is updating appendix A to include HFCs, PFCs, HFOs, and
other refrigerants based on the standards contained in AHRI Standard
700-2016. In response to the comment about establishing a process to
automatically update the standards, it is important to understand that
EPA cannot automatically incorporate future standards by reference. EPA
appreciates the commenters' concerns that the Agency has not updated
the standard in twenty-one years. However, any updated standard must
undergo notice and comment review prior to being adopted into the
regulations.
This final rule will extend the prior reporting requirements that
are applicable to ODS to HFCs and other non-exempt substitutes.
Reclaimers must report annually the aggregate quantity of material sent
to them for reclamation (the combined mass of refrigerant and
contaminants) by refrigerant type, the mass of each refrigerant
reclaimed by type, and the mass of waste products. EPA has been
publishing the aggregate total of each ODS refrigerant reclaimed each
year on its Web site. After these revised reporting requirements take
effect, EPA will begin collecting and making available reclamation data
for non-exempt substitute refrigerants as well as ODS, which should
provide EPA and the general public a greater understanding of the
extent of HFC recovery and reclamation. One commenter encouraged EPA to
publish data on the amount of refrigerant being sent to a reclaimer in
addition to the amount reclaimed. The commenter does not believe that
aggregated data is CBI and believes that sharing the data publicly will
provide further justification for the actions taken in this rule. EPA
responds that the Agency has aggregated and released the reported
quantity of refrigerant received for reclamation, as well as the
aggregate quantity of refrigerant reclaimed since 2010. This includes
an aggregate of all of the different types of refrigerant reported to
EPA as received and/or reclaimed. Because reporting on substitutes was
previously not a requirement, the data on HFCs are incomplete and based
only on reports from companies that chose to provide such data.
3. Revisions to Recordkeeping and Reporting
Under the prior regulations at Sec. 82.164(b), reclaimers must
certify that the refrigerant reclaimed meets the specifications in AHRI
Standard 700-1995 using the analytical methodology prescribed in
appendix A. In addition to updating the standard to AHRI Standard 700-
2016, EPA is finalizing revisions to the regulations to clarify that
the analysis must be conducted on each batch of refrigerant being
reclaimed and that reclaimers must maintain records of each analysis.
Requiring reclaimers to maintain records helps to ensure that
refrigerant is being reclaimed to the appropriate specifications. The
standard practice for reclaimers currently is to analyze by batch, and
to generate records when doing so, so these revisions update the
regulations to reflect current practices and do not add additional
burden. EPA is also requiring that all recordkeeping and reporting
requirements for reclaimers be maintained and reported by refrigerant
type (i.e., ASHRAE number). Information kept in this format will
provide more clarity on the types and quantities of refrigerants being
reclaimed when aggregated information is reported.
EPA is also clarifying what aggregate information must be reported
annually to the Agency, and removing a redundant recordkeeping
provision related to that report. Currently, reclaimers provide data on
ODS reclamation to EPA in multiple formats. EPA intends to develop an
electronic form to standardize the reporting across all reclaimers.
This should reduce burden on the Agency and on reclaimers as EPA must
currently engage in a back and forth process to ensure that all
required data have been reported properly. This will also allow the
Agency to publish reclamation data in a more timely manner.
Previously reclaimers were required to certify that the refrigerant
reclaimed meets the specifications in AHRI Standard 700-1995 using the
analytical methodology prescribed in appendix A. EPA proposed to
specify that reclaimers must, ``[v]erify that each batch of refrigerant
reclaimed meets these specifications using the analytical
[[Page 82339]]
methodology prescribed in appendix A,'' but did not propose a
definition of the term batch. Multiple reclaimers supported testing
each batch of refrigerant but suggested that EPA define the term batch.
These commenters proposed identical or similar definitional language
requesting that EPA define a batch of refrigerant as a single bulk
cylinder containing the reclaimed refrigerant after all processing has
been completed but prior to packaging or shipping to the market. EPA
agrees that specifying what a batch is will assist reclaimers in
complying with this requirement and is therefore adding batch to the
defined terms in Sec. 82.152. This added definition is materially
similar to what commenters suggested.
One commenter suggested that a testing ID or batch number be placed
on each cylinder packaged from the bulk cylinder to allow for
traceability back to the analysis. EPA recognizes that some companies
may want to do this for their own internal quality control. However,
EPA is not presently convinced of the environmental benefit of making
this change at this time.
Multiple reclaimers requested that the reclaimed refrigerant be
independently analyzed by an accredited laboratory. They stated that
independently verifying that reclaimed refrigerant meets the required
specifications reaffirms the appropriate industry standard already
being followed by most reclaimers. One commenter found that it would
not be necessary to require independent analysis since all reputable
reclaimers already do this. EPA responds that it did not propose to
require independent third-party testing of reclaimed refrigerant and
does not presently have sufficient information to finalize such a
requirement. Before requiring third-party testing, EPA would want to
better understand the frequency with which such testing is done, the
costs involved, whether such testing would improve the quality of the
reclaimed refrigerant on the market, and which and how many companies
conduct such testing. Therefore, at this time EPA is not requiring
independent third-party testing. However, as discussed previously in
this notice, ensuring the quality of reclaimed refrigerant is very
important to its use and to further the goals of the section 608
program and EPA may consider establishing such requirements in a future
rulemaking.
EPA requested comment on possible future proposed revisions to the
reclamation requirements including establishing more stringent
certification requirements for reclaimers; establishing a third-party
certification or audit program for reclaimers; and requiring labeling
of reclaimed refrigerant. Many reclaimers and other commenters provided
input on these questions. Because EPA was merely seeking comment for
potential future actions and did not propose any specific action for
this rulemaking, EPA is not responding to those comments at this time
and is not taking final action with respect to any of those comments.
EPA will consider the information received for a potential future
rulemaking.
4. Hazardous Wastes
EPA received comments related to hazardous waste in the context of
the safe disposal requirements, recovery equipment, and reclamation.
Multiple commenters requested that EPA create new Resource Conservation
and Recovery Act (RCRA) exclusions from the definition of hazardous
waste for all recovered refrigerants, perhaps with the exception of
ammonia. The commenters stated that classifying used refrigerant as a
hazardous waste would prevent technicians from recovering and
transporting used refrigerant and prevent reclaimers from accepting,
processing, or reclaiming such refrigerant. As a result, commenters
foresee less recovery and increased emissions because handling
compounds classified as hazardous waste would be cost prohibitive. The
commenters point to the exclusion EPA created for used CFCs at 40 CFR
261.4(b)(12) as a model.
EPA responds that to be a hazardous waste, a compound must either
be specifically listed as a hazardous waste per 40 CFR 261 Subpart D or
exhibit one of the following characteristics: Ignitability, reactivity,
toxicity, or corrosivity per 40 CFR 261 Subpart C. In 1990, EPA revised
the toxicity characteristic and as a result, became aware that certain
CFCs may exhibit the toxicity characteristic. On February 13, 1991, the
Agency issued an exclusion from the RCRA hazardous waste regulations
for CFCs used as refrigerants, provided the refrigerant is reclaimed
for further use. Most non-exempt substitute refrigerants are not listed
nor do they exhibit any characteristics of a hazardous waste and
therefore, are not considered hazardous wastes when they are recovered
and reclaimed. However, some refrigerants are flammable (e.g., HFC-32),
which are likely to exhibit the hazardous waste characteristic of
ignitability.
5. Clarifications and Edits for Readability
EPA is also finalizing revisions in this rule that consolidate
provisions related to refrigerant reclaimers into a single section at
Sec. 82.164. This rule also clarifies what is required of the
reclaimer. The prior regulations required a reclaimer to certify that
he or she will meet a certain set of standards and engage in certain
behaviors. The revised regulations require first, that a reclaimer meet
those standards and behaviors and second, that they certify to having
done so. EPA is making this revision to improve the clarity and
enforceability of these provisions. EPA did not receive any comments on
this proposal.
L. Revisions to the Recordkeeping and Reporting Requirements in Sec.
82.166
1. Background
The prior regulations included all recordkeeping and reporting
provisions in one section of subpart F (Sec. 82.166). While having all
the provisions in one place can be useful, they are separated from the
required practices specific to that regulated entity. This can create
difficulty for the regulated community in finding what records they
must keep and what reports they must make to remain in compliance with
the section 608 requirements. To improve the readability of the
recordkeeping and reporting provisions, EPA is moving the requirements
that were in Sec. 82.166 to the relevant section describing the
required practices. The recordkeeping and reporting provisions that
remain in Sec. 82.166 relate to the leak repair provisions in Sec.
82.156(i) that are effective until January 1, 2019.
EPA summarizes some of the key amended recordkeeping and reporting
provisions for this rulemaking below and intends to prepare a guidance
document for this rule that includes all of the recordkeeping and
reporting requirements. Additional discussion of these provisions may
be found in the section of this notice discussing the corresponding
required practice. This summary is not exhaustive, so to determine all
of recordkeeping requirements that apply to a particular requirement,
you must consult the appropriate text in the revised regulations.
2. Summary of Recordkeeping Provisions
A summary of some key, revised recordkeeping requirements for
subpart F is included here. Unless otherwise noted, all records must be
maintained for at least three years.
Disposal of Small Appliances, MVACs, and MVAC-like
Appliances: Persons who take the final step in the disposal process of
such appliances
[[Page 82340]]
must keep a copy of all the signed statements indicating refrigerant
was recovered properly. This statement must include the name and
address of the person who recovered the refrigerant and the date the
refrigerant was recovered. Alternatively, the statement may be a signed
contract stating either that the supplier will recover any remaining
refrigerant from the appliance in accordance with Sec. 82.155 prior to
delivery or will verify that the refrigerant has been properly
recovered before receipt by the supplier.
Disposal of Appliances Containing More than 5 and Less
than 50 Pounds of Refrigerant: Persons evacuating refrigerant from
appliances with a full charge of more than 5 and less than 50 pounds of
refrigerant for purposes of disposal of that appliance must maintain
records documenting their company name, location of the appliance, date
of recovery, and type of refrigerant recovered for each appliance. They
must also keep records of the quantity of refrigerant, by type,
recovered from such appliances in each calendar month and the quantity
and type of refrigerant transferred for reclamation, the person to whom
it was transferred, and the date of transfer.
Leak Inspection: Owners or operators of appliances with a
full charge of 50 or more pounds of refrigerant must maintain
documentation from quarterly or annual leak inspections that includes
the date of inspection, method used for the inspection, a list of
locations where leaks were discovered, and a certification that all
visible and accessible parts of the appliance were inspected.
Technicians conducting leak inspections must provide such documentation
to the owner or operator. Alternatively, owners or operators may
install an automatic leak detection system and maintain records for
that system, including records showing that the system is audited or
calibrated annually and records related to the leaks that the system
identifies.
Full Charge: Owners or operators of appliances with a full
charge of 50 or more pounds of refrigerant must maintain records
relating to the full charge of the appliance, including records
documenting what the full charge amount is for such appliances, how it
was determined, the range and its midpoint for the full charge, and any
revisions to the full charge. The record for the current full charge
must be maintained until three years after the appliance is retired.
Service Records Provided by Technicians: Persons adding or
removing refrigerant from an appliance with a full charge of 50 or more
pounds of refrigerant must provide the owner or operator with
documentation containing the identity and location of the appliance;
the date and type of maintenance, service, repair, or disposal
performed; the parts of the appliance serviced, maintained, repaired,
or disposed of; the name of the person performing the maintenance,
service, repair or disposal; and the amount and type of refrigerant
added to or removed from the appliance. The appliance owner or operator
must maintain service records provided by technicians.
Verification Tests: Owners or operators of any appliance
with a full charge of 50 or more pounds of refrigerant must maintain
records relating to any verification tests, including records of the
dates, types, and results of all initial and follow-up verification
tests. Technicians conducting verification tests must provide
documentation of such activities to the owner or operator.
Retrofit/Retirement Plans: Owners or operators of
appliances with a full charge of 50 or more pounds of refrigerant that
are subject to retrofit/retirement requirements must maintain retrofit
or retirement plans. The plan must contain the following information:
Identification and location of the appliance; type and full charge of
the refrigerant used; type and full charge of the refrigerant to which
the appliance will be converted, if retrofitted; itemized procedure for
converting the appliance to a different refrigerant, including changes
required for compatibility with the new substitute, if retrofitted;
plan for the disposition of recovered refrigerant; plan for the
disposition of the appliance, if retired; and a schedule, not to exceed
one year, for completion of the appliance retrofit or retirement.
Requests to Extend the Deadline to Repair or Retrofit/
Retire Appliances: Owners or operators of appliances with a full charge
of 50 or more pounds of refrigerant must maintain copies of extension
requests.
Chronically Leaking Systems: Owners or operators of
appliances with a full charge of 50 or more pounds of refrigerant that
leak 125 percent or more of the full charge in a calendar year period
must maintain copies of reports submitted to EPA.
Mothballing: Owners or operators of appliances with a full
charge of 50 or more pounds of refrigerant that mothball an appliance
must keep records documenting when the system was mothballed and when
they add refrigerant back into the appliance.
Purged Refrigerant: Owners or operators of appliances with
a full charge of 50 or more pounds of refrigerant who exclude from
their leak rate calculation purged refrigerant that is destroyed must
maintain records related to the destruction of that purged refrigerant,
including records that demonstrate that a 98 percent or greater
destruction efficiency is met and that include flow rate, quantity or
concentration of the refrigerant in the vent stream, and periods of
purge flow.
Seasonal Variances: Owners or operators of appliances with
a full charge of 50 or more pounds of refrigerant who exclude additions
of refrigerant due to seasonal variance from their leak rate
calculation must maintain records stating that they are using the
seasonal variance flexibility and documenting the amount added and
removed.
Lists of Certified Recovery Equipment and Testing Results:
Organizations that are approved to certify refrigerant recovery and/or
recycling equipment must maintain records of equipment testing and
performance and a list of equipment that meets EPA requirements. These
records must be maintained for three years after the equipment is no
longer offered for sale.
Proof of Certification for Technicians: Technicians who
have passed the section 608 Type I, II, III or Universal test, must
keep a copy of their certification at their place of business. These
records must be maintained for three years after a certified individual
no longer operates as a technician.
Sales Restriction: Anyone selling ODS or a non-exempt
substitute refrigerant must document the name of the purchaser, the
date of sale, and the quantity of refrigerant purchased. In instances
where the buyer employs a certified technician, the seller must keep
the information provided by the buyer to demonstrate that at least one
technician is properly certified. Copies of technician certifications
must be maintained for three years after each purchase. These records
would not apply to the sale of small cans of substitute refrigerant for
servicing MVACs.
Small Cans of Substitute Refrigerant for MVAC Servicing:
Anyone manufacturing small cans of substitute refrigerant with a self-
sealing valve for use in an MVAC must maintain records verifying that
the self-sealing valves do not leak more than 3.00 grams per year when
the self-sealing valve is closed, consistent with appendix E to subpart
F, as revised.
Technician Certification Programs: Organizations that
certify technicians must maintain records of who they
[[Page 82341]]
certify, the scores of all certification tests administered, and the
dates and locations of all tests administered. These records must be
maintained as long as they are in operation, not just for three years.
If a previously approved technician certifying organization stops
certifying technicians for any reason, they must ensure those records
are transferred to another certifying program or EPA. The recordkeeping
requirements can be found in section (g) of appendix D of this subpart.
Reclaimers: Reclaimers must maintain records, by batch, of
the analyses conducted to verify that reclaimed refrigerant meets the
necessary specifications. On a transactional basis, reclaimers must
maintain records of the names and addresses of persons sending them
material for reclamation and the quantity of the material (the combined
mass of refrigerant and contaminants) by refrigerant type sent to them
for reclamation.
4. Summary of Reporting and Notification Provisions
Reporting and notification are important components of the National
Recycling and Emission Reduction Program and allow EPA to track
compliance with the requirements. A summary of some key requirements is
included here, and additional discussion may be found in other sections
of this notice. Please consult the appropriate regulatory provision for
a complete list of reporting and notification requirements. All of
these reporting requirements are new for equipment containing non-
exempt substitutes. Unless the information is claimed as confidential
business information or as otherwise noted, all notifications must be
submitted electronically to 608reports@epa.gov. Electronic submission
of reports should decrease burden on both EPA and the regulated
community.
Extensions to the 30-day or 120-day Leak Repair
Requirement: Owners or operators of appliances with a full charge of 50
or more pounds of refrigerant must request an extension from EPA when
seeking additional time to complete repairs.
Extensions to Retrofit or Retire Appliances: Owners or
operators of appliances with a full charge of 50 or more pounds of
refrigerant must request an extension from EPA when seeking additional
time to complete a retrofit or retirement.
Relief from the Obligation to Retrofit or Retire an
Appliance: Owners or operators who are retrofitting or retiring an
appliance with a full charge of 50 or more pounds of refrigerant may
request that EPA relieve them of that obligation if they can establish
within 180 days of the plan's date that the appliance no longer exceeds
the applicable leak rate. The owner or operator must provide the
retrofit or retirement plan; the date that the requirement to develop a
retrofit or retirement plan was triggered; the leak rate; the method
used to determine the leak rate and full charge; the location of the
leak(s) identified in the leak inspection; a description of repair work
that has been completed; a description of repair work that has not been
completed; and a description of why the repair was not conducted within
the required time frames.
Chronically Leaking Systems: Owners or operators must
submit a report to EPA for any appliance with a full charge of 50 or
more pounds of refrigerant that leaks 125 percent or more of the full
charge in a calendar year. This report must describe efforts to
identify leaks and repair the appliance.
Purged Refrigerant: The first time that owners or
operators of appliances with a full charge of 50 or more pounds of
refrigerant exclude purged refrigerant that has been destroyed from
their leak rate calculation, they must provide a one-time report to EPA
that includes the identification of the facility and a contact person;
a description of the appliance; a description of the methods used to
determine the quantity of refrigerant sent for destruction and type of
records that are being kept; the frequency of monitoring and data-
recording; and a description of the control device, and its destruction
efficiency.
Previously Certified Recovery/Recycling Equipment:
Organizations that are approved to certify refrigerant recovery and/or
recycling equipment must inform EPA if subsequent tests indicate a
previously certified model line for recovery and/or recycling devices
does not meet EPA requirements.
Technician Certification Programs: Organizations that
certify technicians must publish online lists/databases of the people
that they certify. Organizations must report to EPA twice a year the
pass/fail rate and testing schedules. Organizations that receive
records from a program that no longer offers the certification test
must inform EPA within 30 days of receiving these records. The
notification must include the name and address of the program to which
the records have been transferred. The reporting requirements can be
found in section (g) of appendix D of this subpart.
Reclaimer Change of Business Information, Location or
Contact Information: If a reclaimer changes address or management, they
must notify EPA within 30 days. Since reclaimer certification is not
transferable, if ownership changes, the new owner must certify to EPA
that they will meet the reclaimer certification requirements.
Amounts Reclaimed: Reclaimers must report annually the
total aggregate quantity of material sent to them for reclamation (the
combined mass of refrigerant and contaminants) by refrigerant type, the
total mass of each refrigerant reclaimed, and the total mass of waste
products.
M. Effective and Compliance Dates
EPA proposed that the final rule become effective on January 1,
2017, with later compliance dates for specific provisions that
stakeholders may need additional time to implement. The ``effective
date'' is the date that the regulatory text in the Code of Federal
Regulations at 40 CFR part 82, subpart F will change. Unless otherwise
specified, it is also the date by which the regulated community must
comply with the revised regulation. Additional ``compliance dates'' are
the dates by which the regulated community must comply with specific
provisions of the revised regulation.
One commenter stated that January 1, 2017, is too aggressive a
compliance date, given the length of time needed to issue the final
rule and the rule's size and complexity. EPA responds that while the
Agency is finalizing an effective date of January 1, 2017, as proposed,
it is also establishing later compliance dates for some new provisions
as well as for the application of some existing provisions to non-
exempt substitutes. Where a later compliance date applies, the revised
regulations explicitly specify that later compliance date.
The existing provisions related to ODS that were not substantively
modified by the rule continue to apply with respect to ODS. For minor
changes to existing ODS provisions, the compliance date is the same as
the effective date of the rule. Provisions in this final rule for which
there is no delayed compliance date with respect to ODS include the
sales restriction, technician certification requirements, safe disposal
requirements, evacuation requirements, restriction on the sale of used
refrigerant, requirement that appliances include a process stub or
servicing aperture, and the recordkeeping associated with those
provisions. While in most instances this
[[Page 82342]]
rule establishes a later compliance date for application of these
provisions to non-exempt substitutes, the restriction on the sale of
used substitute refrigerant and the requirement that appliances
containing non-exempt substitutes include a process stub or servicing
aperture apply for non-exempt substitutes as of January 1, 2017. In
addition, the revised standards for the sale or import of recovery and/
or recycling equipment apply for both ODS and non-exempt substitutes as
of January 1, 2017.
This rule establishes a compliance date of January 1, 2018, for
many provisions that are newly applicable to substitute refrigerants.
These include the sales restriction, technician certification
requirements, safe disposal requirements, evacuation requirements, and
the recordkeeping associated with those provisions. The new requirement
that small cans of substitute MVAC refrigerant be equipped with self-
sealing valves will also apply as of January 1, 2018. In addition, this
rule establishes a compliance date of January 1, 2018, for the new
recordkeeping requirement associated with the disposal of appliances
containing more than five and less than 50 pounds of either ODS or non-
exempt substitute refrigerant.
Lastly, this rule establishes a compliance date of January 1, 2019,
for the revised leak repair provisions, regardless of whether the
appliance contains an ODS or a non-exempt substitute refrigerant.
The following sections discuss EPA's rationale for these staggered
compliance dates.
1. Section 82.154(c)--Refrigerant Sales Restriction
EPA proposed January 1, 2017, as the compliance date for the sales
restriction of all refrigerant (non-exempt substitutes or ODS). EPA
also proposed to require that small cans of MVAC refrigerant be
manufactured with self-sealing valves by one year from the publication
of the final rule and that the sale of small cans without self-sealing
valves cease by two years from publication of the final rule.
EPA is finalizing a compliance date of January 1, 2018, for the
sales restriction as applied to non-exempt substitute refrigerants.
Changes related to the sales restriction, as applied to ODS, apply
January 1, 2017, as proposed. EPA is also finalizing a compliance date
of January 1, 2018, to equip small cans with a self-sealing valve. EPA
is not finalizing a sell-through requirement in this rule.
EPA is delaying the compliance date for the sales restriction so
that it matches the compliance dates for other aspects of the rule
related to sales of non-exempt substitute refrigerants. Specifically,
EPA proposed one year from the date of publication of the final rule as
the date by which technicians working with appliances containing non-
exempt substitutes must be certified and the date by which small cans
of MVAC refrigerant must be equipped with a self-sealing valve. As
discussed below, EPA is finalizing January 1, 2018, as the compliance
date for both of those provisions. To minimize potential conflicts by
having different compliance dates, EPA is extending the compliance date
for the sales restriction of substitute refrigerants to January 1,
2018.
With regards to small cans of MVAC refrigerant, manufacturers,
distributors and retailers of automotive refrigerant supported the
proposed ``manufacture-by'' date of one year from publication of the
final rule, but commented that they oppose a sell-through date for
small cans that do not have self-sealing valves. They commented that
such a requirement would be inefficient, burdensome, costly, and
environmentally problematic. It would require all retailers to know of
the requirement and establish processes for returning unsold cans back
to the manufacturer for destruction. More likely, the cans may be
improperly disposed of, which would negate the environmental benefit of
the new provisions. One commenter stated that a ``manufacture-by'' date
would shift EPA's burden in ensuring compliance from a few
manufacturers to thousands of retailers. Furthermore, commenters cited
EPA's July 2015 SNAP rule (80 FR 42901; July 20, 2015) which listed
HFC-134a as unacceptable for use as an aerosol as of a ``manufacture-
by'' date, rather than a ``sell-by'' date. CARB commented on EPA's
proposal for a two-year sell-through period that a one-year sell-
through period has been found to be acceptable in their experience.
EPA responds that to allow all entities in the distribution chain
time to plan for and communicate changes to the sales restriction on
non-exempt substitute refrigerants, as well as the requirement for
self-sealing valves on small cans, EPA is finalizing a sales
restriction date and ``manufacture-by'' or ``import-by'' date of
January 1, 2018. This will provides slightly more time than one year
from publication of the final rule, which EPA proposed for the self-
sealing valve requirement. Generally speaking, EPA has attempted to
simplify the compliance dates so they do not fall in the middle of a
month or during the middle of the cooling season.
In response to the comments received on EPA's proposal to allow
small cans manufactured and placed into initial inventory or imported
before that date to be sold for one additional year, EPA is not
finalizing the sell-through requirement and is finalizing only a date
by which small cans must be manufactured or imported with a self-
sealing valve. EPA agrees that this is the least-burdensome option and
that it avoids the potential for any unintended consequences of a
``sell-by'' date.
2. Section 82.155--Safe Disposal of Small Appliances, MVAC, and MVAC-
Like Appliances
EPA proposed that the extension of the requirements for the
recovery of non-exempt substitute refrigerant prior to disposal/
recycling of small appliances, MVACs, and MVAC-like appliances take
effect one year from publication of the final rule. EPA proposed that
changes related to ODS equipment be effective January 1, 2017.
One commenter supported the proposed one-year extension to the
compliance date for substitute refrigerants. EPA is finalizing a
compliance date of January 1, 2018, for the extension to non-exempt
substitute refrigerants. This will provide sufficient time for final
disposers such as scrap recyclers to learn about the extension to non-
exempt substitutes and make any adjustments needed to start maintaining
records associated with disposal of appliances containing non-exempt
substitutes. Using January 1, 2018, rather than one year from
publication will also make communicating the compliance date for the
rule easier.
Because EPA is not making substantive changes to the existing
requirements for appliances containing ODS, EPA does not expect that
final disposers will need extra time to adjust to the updates in this
rule for those appliances. Accordingly, EPA is finalizing a compliance
date for ODS appliances of January 1, 2017.
3. Section 82.156--Proper Evacuation of Refrigerant From Appliances
EPA proposed that the extension of the requirements related to the
evacuation of non-exempt substitute refrigerants before the
maintenance, servicing, repair, or disposal of appliances apply one
year from publication of the final rule. EPA proposed that changes
related to ODS equipment apply January 1, 2017.
Two commenters supported the proposed one year extension to the
compliance date for non-exempt substitutes. Another commenter requested
two years on the ground that
[[Page 82343]]
recovery and reclamation equipment may need to be modified to meet the
requirements of the final rule. EPA responds that the Agency is not
requiring that existing recovery and/or recycling equipment be modified
or replaced with new equipment.
EPA is finalizing a compliance date of January 1, 2018, for the
extension of the requirements to appliances containing non-exempt
refrigerants. This will provide affected entities time to learn about
the extension and make any adjustments needed to apply the required
practices to the evacuation of appliances containing non-exempt
substitutes. Because EPA is not making substantive changes to the
existing requirements for appliances containing ODS, EPA does not
expect that affected entities will need extra time to adjust to the
updates in this rule for those appliances. Accordingly, EPA is
finalizing a compliance date for ODS appliances of January 1, 2017.
EPA is establishing a delayed compliance date of January 1, 2018,
for the new requirement to keep records upon disposal of appliances
containing either a class I, class II, or non-exempt substitute
refrigerant. This is slightly more than one year from publication of
the final rule, which was what EPA proposed. The delayed compliance
date will allow affected entities to establish a recordkeeping program
to track the amount of refrigerant recovered from appliances that are
disposed of in the field. EPA expects that the same amount of time will
be needed for ODS and non-ODS appliances because this is a new
requirement, not an update to an existing requirement.
4. Section 82.157--Appliance Maintenance and Leak Repair
This rule makes significant revisions to the leak repair
provisions, including lowering the leak rates, requiring leak repair
verification tests on new types of equipment, and modifying the
recordkeeping and reporting requirements. In addition, owners and
operators of appliances using non-exempt substitute refrigerants that
were previously not covered by any subpart F required practices will
have to familiarize themselves with the requirements. EPA is therefore
establishing a later compliance date for the appliance maintenance and
leak repair requirements than for most other provisions.
EPA proposed a compliance date 18 months from publication of the
final rule. One commenter suggested that EPA shorten the compliance
date to 12 months and two commenters agreed that it should be at
minimum 18 months. Five commenters recommended more than 18 months,
with the longest extensions ranging from 24 to 36 months after the
publication of the final rule. These commenters stated that later dates
would decrease the costs of compliance and give companies adequate time
to train employees and update current systems to meet the requirements
of the rule. Extending the compliance dates would also allow more time
for owners or operators to bring equipment up to the new standards, and
avoid having to potentially conduct numerous repairs or replacements at
once. Commenters who supported a 36-month extension noted constraints
with the federal budget cycle and acquisition requirements or referred
to Maximum Achievable Control Technology rules that typically provide
three years to comply.
Because the leak repair provisions already provide the opportunity
for extensions for delays caused by the federal agency appropriations
and/or procurement process, EPA disagrees with federal agencies
requesting a 36 month extension to the compliance date. EPA agrees with
commenters that additional time may be needed to understand the
regulations and to make repairs on systems that have not previously
been subject to the subpart F required practices. Therefore, EPA is
establishing a compliance date of January 1, 2019. This date is two
years from the effective date, and more than 24 months from publication
of the final rule. This is sufficient time for owners and operators of
appliances with 50 or more pounds of refrigerant to learn about the
updated requirements; update systems, standard operating procedures,
and training materials to best administer the requirements; and fix
leakier systems.
Until January 1, 2019, the leak repair provisions at Sec.
82.156(i) and the associated recordkeeping requirements at Sec. 82.166
continue to apply as specified to appliances containing ODS
refrigerant. Those leak repair provisions use terminology contained in
the definitions as they existed prior to this rulemaking. EPA has added
those unmodified definitions to Sec. 82.156(j) for the purposes of
implementing Sec. 82.156(i) until the new provisions take effect
January 1, 2019.
5. Section 82.158--Recovery and Recycling Equipment
EPA proposed that the standards for recovery and recycling
equipment apply to the manufacture and import of equipment for non-
exempt substitutes as of January 1, 2017. One commenter requested
additional time on the ground that recovery and recycling equipment may
need to be modified to meet the requirements of the final rule. EPA
responds that the Agency is not requiring that existing recovery and/or
recycling equipment be modified or replaced with new equipment
certified for use with non-exempt substitute refrigerants. Rather, EPA
is requiring only that newly manufactured or imported recovery and/or
recycling equipment meet the new standards upon the compliance date.
6. Section 82.161--Technician Certification Requirements
EPA proposed that technicians be certified to handle non-exempt
substitute refrigerants by one year from publication of the final rule.
EPA proposed that changes related to ODS apply January 1, 2017.
One commenter supported the one year extension to the compliance
date for non-exempt substitute refrigerants. Another commenter
requested two years so as to allow time for certifying organizations to
write and review the certification test questions as well as train, or
re-train, technicians on that new material.
EPA is establishing a compliance date of January 1, 2018, for
technicians to be certified to handle non-exempt substitute
refrigerants. This is slightly more than the proposal of one year from
publication of the final rule. This will provide time for EPA to update
the test bank with questions related to non-exempt substitute
refrigerants and for certifying organizations to update their testing
materials to use the new questions. EPA does not anticipate that a two
year extension would be necessary because HVACR contractors are
generally working on both ODS refrigerants and non-exempt substitute
refrigerants, and there is not likely to be a rush of contractors
needing to be certified.
EPA is also finalizing the compliance dates for the publication of
lists of certified technicians as proposed. As such, any technician
certified on or after January 1, 2017, must be included in a publicly
accessible list of certified technicians or provided the ability to opt
out. Technician certification programs must make these lists available
starting January 1, 2018.
V. Possible Future Revisions to Subpart F
EPA requested input on other aspects of the National Recycling and
Emission Reduction Program that might be addressed in a future
rulemaking. Specifically EPA requested feedback on (1) establishing a
voluntary program for
[[Page 82344]]
supermarkets based on their corporate-wide average leak rate; (2)
establishing more stringent certification requirements for reclaimers;
(3) establishing a third-party certification or audit program for
reclaimers; (4) requiring labeling of reclaimed refrigerant; (5) moving
further upstream the responsibility to recapture refrigerant from
appliances being disposed of; (6) requiring recertification of
currently certified technicians; and (7) establishing a technician
certification requirement or sales restriction for flammable
refrigerants. EPA is not taking any final action on these topics in
this rule but does greatly value the information provided by
commenters. EPA has prepared a summary of these comments that is
available in the docket for this rule.
VI. Economic Analysis
For the reasons explained in Section III of this preamble, EPA
considered economic factors in the development of this rule. EPA
considered the costs of different actions that would achieve the goals
of this rule to individual entities and the United States economy as a
whole. While selecting regulatory actions that would achieve the goals
of this rule, EPA elected to consider the costs of different actions to
individual entities and the United States economy as a whole. Many
commenters claimed that the benefits of the proposed regulatory
provisions do not justify the costs, while four comments supported the
cost effectiveness of the proposed rule. EPA has taken these comments
into consideration and is finalizing several provisions that will be
less burdensome than proposed. This section provides a brief overview
of how the Agency calculated costs and then discusses major revisions
to the final rule that affect EPA's economic analysis. A full
description of the cost analyses is included in the technical support
document Analysis of the Economic Impact and Benefits of Final
Revisions to the National Recycling and Emission Reduction Program,
which can be found in the docket.
To estimate the incremental costs of the regulatory revisions, the
Agency developed a set of model entities with a distribution of
different model facilities, each of which could contain a set of model
appliances. This set of model entities was used to represent the
potentially affected entities in a variety of economic sectors in the
United States, and they were developed based on EPA's Vintaging Model
and cross-checked with the 2013 dataset of repair records developed
under California's RMP. Each model entity reflects information about
the typical number of facilities in a given sector and size category
and the number of pieces of equipment in each equipment category that
are likely to be owned and/or operated by each facility. By combining
the model entities with economic data on potentially affected
industries from the United States Census, EPA obtained a model for the
potentially affected population. By applying the costs of leak
inspections, repairs, recordkeeping and reporting, self-sealing cans
for MVAC servicing, and other regulatory revisions to this population,
EPA estimated the costs to individual entities and the total cost to
the economy.
Some regulatory revisions in this action, such as providing
extensions to owners or operators of comfort cooling and commercial
refrigeration before having to replace leaking appliances reduce the
cost of compliance to owners of ODS-containing equipment. These
reductions were included in the incremental cost of the action.
As detailed more fully in the technical support document, the
rulemaking includes new compliance costs of approximately $75.5 million
split into approximately $32.5 million for owners and operators of
equipment containing ODS and $43 million in non-ODS systems. Offsetting
the new compliance costs are reductions in cost due to the removal of
some regulatory requirements and increasing flexibility for repairs.
These offsetting costs total $51 million, all related to equipment
containing ODS. Taken together (the new compliance costs less the
offsetting costs), EPA estimates that the net total cost to comply with
the requirements of this final rule is $24.5 million per year (Table 3
shows these net costs at both the rule component level and for the
total rule).
Table 3--Incremental Annual Compliance Costs by Rule Component (2014$) With 7% and 3% Discount Rates
--------------------------------------------------------------------------------------------------------------------------------------------------------
Total incremental compliance costs (7% Total incremental compliance costs (3%
discount rate) discount rate)
Rule component -----------------------------------------------------------------------------------------------
HFC ODS Total HFC ODS Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Leak Repair:
Comfort Cooling..................................... $5,046,000 -$38,191,000 -$33,145,000 $2,437,000 -$18,705,000 -$16,268,000
Commercial Refrigeration............................ 1,709,000 -10,137,000 -8,428,000 823,000 -4,963,000 -4,139,000
IPR................................................. 385,000 31,000 417,000 186,000 13,000 200,000
Leak Inspection......................................... 21,703,000 27,460,000 49,163,000 21,703,000 27,460,000 49,163,000
Reporting & Recordkeeping............................... 11,101,000 2,350,000 13,451,000 11,101,000 2,350,000 13,451,000
Self-sealing Valves on Small Cans....................... 3,070,000 .............. 3,070,000 3,070,000 .............. 3,070,000
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
Total............................................... 43,014,000 -$18,487,000 24,528,000 39,320,000 6,155,000 45,477,000
--------------------------------------------------------------------------------------------------------------------------------------------------------
Totals may not sum due to independent rounding.
Some regulatory revisions, by reducing the amount of refrigerant
lost to leaks, also result in savings for equipment owners or operators
of the cost of purchasing replacement refrigerant. EPA estimates that
affected entities would avoid spending over $44 million in refrigerant
purchases alone due to the regulatory revisions. The compliance costs
and refrigerant savings combined are estimated to be savings of $19.6
million per year. Furthermore, costs could additionally be lower
because appliances running with the correct amount of refrigerant are
generally more energy efficient to operate and last longer.
[[Page 82345]]
Table 4--Total Annual Refrigerant Savings (2014$) and Combined Annual Cost and Annual Savings 2ith 7% and 3% Discount Rate
--------------------------------------------------------------------------------------------------------------------------------------------------------
Annual refrigerant savings 7% Discount rate 3% Discount rate
-------------------------------------------------------------------------------------------------------------
Combined Combined
Rule component Incremental annual savings Incremental annual savings
HFC ODS Total compliance and compliance compliance and compliance
costs costs costs costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Leak Repair:
Comfort Cooling....................... -$9,853,000 -$20,221,000 -$30,073,000 -$33,145,000 -$63,218,000 -$16,268,000 -$46,341,000
Commercial Refrigeration.............. -3,439,000 -7,514,000 -10,953,000 -8,428,000 -19,381,000 -4,139,000 -15,092,000
IPR................................... -1,582,000 -1,533,000 -3,115,000 417,000 -2,698,000 200,000 -2,915,000
Leak Inspection........................... ............ .............. .............. 49,163,000 49,163,000 49,163,000 49,163,000
Reporting & Recordkeeping................. ............ .............. .............. 13,451,000 13,451,000 13,451,000 13,451,000
Self-sealing Valves on Small Cans......... ............ .............. .............. 3,070,000 3,070,000 3,070,000 3,070,000
-------------------------------------------------------------------------------------------------------------
Total............................. -14,874,000 -29,268,000 -44,141,000 24,528,000 -19,613,000 45,477,000 1,336,000
--------------------------------------------------------------------------------------------------------------------------------------------------------
Totals may not sum due to independent rounding.
Several commenters questioned the validity of EPA's cost estimates
and some provided examples of costs from their own business/
organizations. One commenter said that, given the amount of paperwork
and added compliance requirements in the proposed rule, the cost
estimates are implausibly low and call into question the fundamental
integrity of the Agency's economic analysis. Another said that they
would estimate the cost to implement the new requirements to be well in
excess of $100 million just to repair and potentially replace IPR
systems, noting that the replacement of a single complex IPR system can
be as high as $10 million.
EPA responds that the aggregate costs and savings for the economy
as a whole would not be expected to be distributed evenly across
affected entities. For example, owners of ODS-containing equipment with
low leak rates might only incur costs for recordkeeping. On the other
hand, owners of HFC-containing equipment with high leak rates might
incur costs of repairing leaks, though they would also realize savings
due to reduced refrigerant purchases. Owners of ODS-containing comfort
cooling or commercial refrigeration appliance with high leak rates may
also incur costs of repairing leaks but also substantial cost savings
by not having to retrofit or retire the appliance if unable to repair
within 30 days, given the extensions provided in the final rule.
Several commenters claimed that requiring all systems to have
annual or quarterly leak inspections would impose significant costs on
owners of all systems including those systems that do not leak or leak
very little. One commenter, using their estimate for the cost of each
leak inspection of a particular facility's appliances, when taken
quarterly across some 5,200 retail stores and supporting business
units, stated that the impact on their company would exceed $10
million. Another commenter called quarterly leak inspections redundant
if it is already required that leaks be fixed in a timely manner. Two
commenters supported leak inspections and trade group supported
periodic leak inspections as a proactive means to detect leaks, reduce
refrigerant emissions, and maintain energy efficiency of equipment.
The Agency responds that a proactive plan of maintenance leads to
reduced emissions of refrigerant and is part of the best practices for
operation of these systems. Discussions with members of industry and
reports from the GreenChill program support the effectiveness of a
program of regular inspections to lower average leak rates. However, to
allow for flexibility in how system owners and operators implement
their refrigeration management programs, especially for the least leaky
equipment, EPA is not finalizing a requirement that all systems undergo
periodic leak inspections. Only systems that show a history of
excessive emissions by exceeding the leak rate threshold will require
periodic inspections, and then only for a limited time if the leak rate
of the system is addressed effectively. This will reduce the burden on
owners of systems that are not responsible for emissions, while
focusing attention on systems that require it. EPA estimates that this
will affect 282,000 appliances, compared to approximately 1.5 million
under the proposed rule.
EPA's analysis of the costs of leak inspection used the median
hourly rate for heating, air-conditioning, and refrigeration mechanics
and installers provided by the Bureau of Labor Statistics, along with
an additional 110% for overhead. EPA assumed that leak inspections
could be carried out quickly because the proposal allowed employees and
not certified technicians to conduct the inspections. However, as
discussed previously, a number of stakeholders claimed that inspections
by employees not specialized in refrigeration would be far less
effective and pointed out that the standard practice for many entities
is to hire technicians for inspections. EPA is requiring in this final
rule that leak inspections be conducted by certified technicians. EPA's
final analysis continues to use the average rate provided by the Bureau
of Labor Statistics but has increased the number of hours for each
inspection.
Several commenters said that the costs of completely replacing a
system if it leaked more than 75 percent of its full charge in two
consecutive years were very high, and that these costs would not
necessarily fall on those whose poor maintenance practices allowed for
excessive emissions. They also commented that the provision was
inefficient because all of the system components would need to be
replaced, even those that were known not to be leaking, imposing
additional costs with no additional benefit.
In response to the potential significant costs that commenters said
the proposed ``chronic leaker'' provision would incur, EPA is
finalizing a modification of this provision that would instead require
reporting to EPA rather than retirement
[[Page 82346]]
of an appliance. This will greatly reduce the costs on owners of
systems with very high emissions. While EPA had not estimated the costs
or benefits of the proposed chronic leaker provision, EPA has
calculated the total annual reporting burden associated with the final
provision to be $126,000.
Two commenters said that requiring all leaks be fixed after a
system exceeds the threshold leak rate would lead to high costs with
diminishing returns as smaller and smaller leaks were repaired.
EPA maintains that once a system has been evacuated for repair it
is a best practice to repair any significant leaks. Doing so makes
financial sense because allowing leaks to continue leads to the
purchase of more refrigerant, reduced energy efficiency, possible
increased service costs if the system must be shut down and repaired
again, and increased risk of loss of cooling. However, EPA agrees that
some leaks may allow very small amounts of refrigerant to escape and
that some leaks are difficult to access or repair. Therefore, taking
into account the comments, EPA is not finalizing the requirement that
all identified leaks be repaired.
Two commenters claimed that lowering the maximum leak rate for IPR
systems to 20 percent would lead to significant economic burden for
some businesses, and one of whom said that EPA has not provided
adequate benefits to justify this requirement.
EPA has estimated that lowering the maximum rate at which systems
may be allowed to leak perpetually without being repaired protects the
environment by reducing emissions of pollutants. EPA recognizes that
maintenance of IPR systems presents particular challenges. These
systems are often very large and complex, making finding leaks more
difficult. They can also be extremely costly to shut down to allow for
repairs. Therefore, in consideration of comments and other feedback
from stakeholders, the Agency is finalizing a leak rate of 30 percent
for IPR systems. While this will reduce benefits, we hope to strike a
balance between the costs and benefits of this provision that will
allow greater flexibility in the management of these systems. Under the
proposed leak rate of 20 percent, the EPA estimates benefits of 0.63
MMTCO2eq with costs of $7 million for leak inspections and
repair. With the final leak rate of 30 percent, estimated benefits are
0.44 MMTCO2eq with costs of $5.5 million.
One commenter stated that there is substantial uncertainty in the
transition pathway away from HFCs due to EPA's SNAP rule that changed
the listing status for certain substitute refrigerants (80 FR 42870)
(``SNAP Program Status Change Rule''). The commenter encouraged EPA to
consider a wider range of possible baseline futures when calculating
the 2020 and 2025 benefits of the rule.
EPA responds that the Agency has considered that many end users
will change the ODS substitutes being used because of the SNAP rule and
EPA considered such change when estimating the benefits of this final
action. EPA assumed transitions away from substitutes that are no
longer acceptable in some end-uses, most notably in commercial
refrigeration based on the most likely scenario detailed in Climate
Benefits of the SNAP Program Status Change Rule found in docket number
EPA-HQ-OAR-2014-0198-0239. However, many of the differences between the
scenarios in that analysis have little or no effect on the estimated
benefits of the present action. For example, the analysis of the SNAP
rule looked only at transitions of MVAC units for exports, as it is
assumed that the domestic market will already have transitioned away
from HFC-134a by 2020 due to EPA's earlier Light Duty Vehicle rule.
Therefore the SNAP rule would not be expected to introduce uncertainty
in the benefits in 2020 or 2025 in MVAC servicing. As another example,
the different SNAP scenarios assumed that low-temperature commercial
refrigeration appliances would begin to transition from HFC-134a to R-
450A or R-513A in different years, but all three scenarios assume that
transition will reach a maximum of 50 percent by 2020. Given the small
differences in the expected equipment stock related to uncertainty in
the effects of the SNAP Program Status Change Rule, we believe that
assuming the effects of the ``most likely'' scenario from the SNAP
analysis provides a model universe of appliances that is realistic and
that avoids any possibility of double counting benefits between the two
rules.
Under the Small Business Regulatory Enforcement Fairness Act
(SBREFA), federal agencies must consider the effects regulations may
have on small entities. If a rule may have a significant economic
impact on a substantial number of small entities (SISNOSE), the Agency
would be required to take certain steps to ensure that the interests of
small entities were represented in the rulemaking process. To determine
if this was necessary, EPA used the model entity analysis to ascertain
the likelihood that the revisions would have a SISNOSE. EPA estimates
that approximately 740 of the approximately 854,580 affected small
businesses could incur costs in excess of 1 percent of annual sales and
that fewer than 80 small businesses could incur costs in excess of 3
percent of annual sales. These levels are below the thresholds used in
other Title VI rulemakings under which it can be presumed that an
action will have no SISNOSE. Nevertheless, EPA consulted numerous
stakeholders, including small businesses, in the development of this
rule.
The full description of the cost analyses, including sensitivity
analyses of key assumptions and alternate options, is included in the
technical support document Analysis of the Economic Impact and Benefits
of Final Revisions to the National Recycling and Emission Reduction
Program, which can be found in the docket for this action.
VII. Statutory and Executive Order Reviews
A. Executive Order 12866: Regulatory Planning and Review and Executive
Order 13563: Improving Regulation and Regulatory Review
This action is a significant regulatory action that was submitted
to OMB for review. This action was deemed to raise novel legal or
policy issues. Any changes made in response to OMB recommendations have
been documented in the docket. EPA prepared an economic analysis of the
potential costs and benefits associated with this action. This analysis
is summarized in Section VI of the notice and is available in the
docket.
B. Paperwork Reduction Act
The information collection activities in this rule have been
submitted for approval to the Office of Management and Budget (OMB)
under the PRA. The Information Collection Request (ICR) document that
EPA prepared has been assigned EPA ICR number 1626.15. You can find a
copy of the ICR in the docket for this rule, and it is briefly
summarized here. The information collection requirements are not
enforceable until OMB approves them.
All recordkeeping and reporting requirements under this program are
specifically described in Section IV.L of this notice. In order to
facilitate compliance with and enforce the refrigerant management
requirements of section 608 of the CAA, EPA requires reporting and
recordkeeping by technicians, technician certification programs,
refrigerant recovery/recycling equipment testing organizations,
refrigerant wholesalers and purchasers, refrigerant reclaimers,
refrigeration and air-conditioning equipment owners, and other
establishments that perform
[[Page 82347]]
refrigerant removal, service, or disposal. EPA has used and will
continue to use these records and reports to ensure that refrigerant
releases are minimized during the recovery, recycling, and reclamation
processes. The handling and confidentiality of the reporting
requirements follow EPA's confidentiality regulations at 40 CFR 2.201
et seq. for assuring computer data security, preventing disclosure,
proper storage, and proper disposal.
Respondents/affected entities: Entities required to comply with
reporting and recordkeeping requirements include technicians;
technician certification programs; refrigerant wholesalers; refrigerant
reclaimers; refrigeration and air-conditioning equipment owners and/or
operators; and other establishments that perform refrigerant removal,
service, or disposal.
Respondent's obligation to respond: Mandatory (40 CFR part 82,
subpart F).
Estimated number of respondents: The total number of respondents is
estimated to be approximately 861,374.
Frequency of response: The frequency of responses vary from once a
year to daily. Public reporting burden for this collection of
information is estimated to vary from one minute to 9.4 hours per
response, including time for reviewing instructions and gathering,
maintaining, and submitting information.
Total estimated burden: The total estimated burden is 580,473 hours
(per year). Burden is defined at 5 CFR 1320.3(b).
Total estimated cost: The total estimated cost is $34,627,299 (per
year). There are no estimated annualized capital or operation &
maintenance costs associated with the reporting or recordkeeping
requirements.
Much of this burden is already covered by the existing requirements
in 40 CFR part 82, subpart F, and the existing ICR, which was last
approved by OMB in December 2014. The OMB control number for this
information collection is 2060-0256.
An agency may not conduct or sponsor, and a person is not required
to respond to, a collection of information unless it displays a
currently valid OMB control number. The OMB control numbers for the
EPA's regulations in 40 CFR are listed in 40 CFR part 9. When OMB
approves this ICR, the Agency will announce that approval in the
Federal Register and publish a technical amendment to 40 CFR part 9 to
display the OMB control number for the approved information collection
activities contained in this final rule.
C. Regulatory Flexibility Act (RFA)
I certify that this action will not have a significant economic
impact on a substantial number of small entities under the RFA. The
small entities subject to the requirements of this action are
businesses and small governmental jurisdictions that own or service
comfort cooling, commercial refrigeration, or IPR equipment. EPA
estimates that approximately 740 of the approximately 854,580 affected
small businesses could incur costs in excess of 1 percent of annual
sales and that fewer than 80 small businesses could incur costs in
excess of 3 percent of annual sales. These levels are below the
thresholds under which it can be presumed that an action will have no
SISNOSE, as used in other Title VI rulemakings. Details of this
analysis are presented in the Analysis of the Economic Impact and
Benefits of Final Revisions to the National Recycling and Emission
Reduction Program available in the docket.
D. Unfunded Mandates Reform Act (UMRA)
This action does not contain an unfunded mandate of $100 million or
more as described in UMRA, 2 U.S.C. 1531-1538, and does not
significantly or uniquely affect small governments. This rule
supplements the statutory self-effectuating prohibition against venting
refrigerants by ensuring that certain service practices are conducted
that reduce the emissions of ozone-depleting refrigerants and their
substitutes. For example, this rule strengthens the leak repair
requirements, establishes recordkeeping requirements for the disposal
of appliances containing more than five and less than 50 pounds of
refrigerant, and modifies the technician certification program.
E. Executive Order 13132: Federalism
This action does not have federalism implications. It will not have
substantial direct effects on the states, on the relationship between
the national government and the states, or on the distribution of power
and responsibilities among the various levels of government.
F. Executive Order 13175: Consultation and Coordination With Indian
Tribal Governments
This action does not have tribal implications as specified in
Executive Order 13175. This rule does not significantly or uniquely
affect the communities of Indian tribal governments. This rule
supplements the statutory self-effectuating prohibition against venting
refrigerants by ensuring that certain service practices are conducted
that reduce the emissions of ozone-depleting refrigerants and their
substitutes. For example, this rule strengthens the leak repair
requirements, establishes recordkeeping requirements for the disposal
of appliances containing more than five and less than 50 pounds of
refrigerant, and modifies the technician certification program. Thus,
Executive Order 13175 does not apply to this action.
G. Executive Order 13045: Protection of Children From Environmental
Health and Safety Risks
This action is not subject to Executive Order 13045 (62 FR 19885,
April 23, 1997) because it is not economically significant as defined
in Executive Order 12866. Nonetheless, the environmental health or
safety risk addressed by this action may have a disproportionate effect
on children. Depletion of stratospheric ozone results in greater
transmission of the sun's ultraviolet (UV) radiation to the earth's
surface. The following studies describe the effects of excessive
exposure to UV radiation on children: (1) Westerdahl J, Olsson H,
Ingvar C. ``At what age do sunburn episodes play a crucial role for the
development of malignant melanoma,'' Eur J Cancer 1994: 30A: 1647-54;
(2) Elwood JM Japson J. ``Melanoma and sun exposure: an overview of
published studies,'' Int J Cancer 1997; 73:198-203; (3) Armstrong BK,
``Melanoma: childhood or lifelong sun exposure,'' In: Grobb JJ, Stern
RS Mackie RM, Weinstock WA, eds. ``Epidemiology, causes and prevention
of skin diseases,'' 1st ed. London, England: Blackwell Science, 1997:
63-6; (4) Whiteman D., Green A. ``Melanoma and Sunburn,'' Cancer Causes
Control, 1994: 5:564-72; (5) Heenan, PJ. ``Does intermittent sun
exposure cause basal cell carcinoma? A case control study in Western
Australia,'' Int J Cancer 1995; 60: 489-94; (6) Gallagher, RP, Hill,
GB, Bajdik, CD, et al. ``Sunlight exposure, pigmentary factors, and
risk of nonmelanocytic skin cancer I, Basal cell carcinoma,'' Arch
Dermatol 1995; 131: 157-63; (7) Armstrong, DK. ``How sun exposure
causes skin cancer: an epidemiological perspective,'' Prevention of
Skin Cancer. 2004. 89-116.
H. Executive Order 13211: Actions That Significantly Affect Energy
Supply, Distribution, or Use
This action is not a ``significant energy action'' because it is
not likely to have a significant adverse effect on the supply,
distribution or use of energy.
[[Page 82348]]
I. National Technology Transfer and Advancement Act
This action involves technical standards. In some instances, EPA is
deciding to use a modified version of an industry standard for purposes
of this rule; in others, EPA is deciding to use an industry standard by
reference exactly as written.
EPA is incorporating by reference UL 1963, Supplement SB,
Requirements for Refrigerant Recovery/Recycling Equipment Intended for
Use with a Flammable Refrigerant, Fourth Edition, June 1, 2011. This
establishes standards for refrigerant recovery and refrigerant
recovery/recycling equipment to ensure the equipment can be used safely
with flammable refrigerants. The standard is available at www.comm-2000.com or by writing to Comm 2000, 151 Eastern Avenue, Bensenville,
IL 60106. The cost is $798 for an electronic copy and $998 for
hardcopy. UL also offers a subscription service to the Standards
Certification Customer Library (SCCL) that allows unlimited access to
their standards and related documents. The cost of obtaining this
standard is not a significant financial burden for equipment
manufacturers. Therefore, EPA concludes that the UL standard being
incorporated by reference is reasonably available.
EPA is incorporating by reference standards referenced in AHRI
Standard 700-2016. Specifically, these standards are:
--2008 Appendix C for Analytical Procedures for AHRI Standard 700-2014-
Normative, 2008. This document establishes definitive test procedures
for determining the quality of new, reclaimed and/or repackaged
refrigerants in support of the standards established in AHRI-700. An
electronic copy of the appendix is available at www.ahrinet.org. It is
also available by mail at Air-Conditioning, Heating, and Refrigeration
Institute (AHRI), 2111 Wilson Boulevard, Suite 500, Arlington, VA
22201. The cost of obtaining this standard is not a significant
financial burden. Therefore, EPA concludes that the standard being
incorporated by reference is reasonably available.
--2012 Appendix D for Gas Chromatograms for AHRI Standard 700-2014-
Informative, 2012, Air-Conditioning, Heating, and Refrigeration
Institute. This appendix provides figures for the gas chromatograms
used with Appendix C to AHRI Standard 700-2015: Analytical Procedures
for AHRI Standard 700-2015, Normative, Specification for Fluorocarbon
Refrigerants. An electronic copy of the appendix is available at
www.ahrinet.org. It is also available by mail at Air-Conditioning,
Heating, and Refrigeration Institute (AHRI), 2111 Wilson Boulevard,
Suite 500, Arlington, VA 22201. The cost of obtaining this standard is
not a significant financial burden. Therefore, EPA concludes that the
standard being incorporated by reference is reasonably available.
--Federal Specification for ``Fluorocarbon Refrigerants,'' BB-F-1421 B,
dated March 5, 1982. This section of this standard establishes a method
to determine the boiling point and boiling point range of a
refrigerant. The standard is available in the docket for this
rulemaking. Therefore, EPA concludes that the standard being
incorporated by reference is reasonably available.
--GPA STD-2177, Analysis of Natural Gas Liquid Mixtures Containing
Nitrogen and Carbon Dioxide by Gas Chromatography, 2013, Gas Processors
Association. This standard establishes methods for analyzing
demethanized liquid hydrocarbon streams containing nitrogen/air and
carbon dioxide, and purity products such as ethane/propane mix that
fall within compositional ranges indicated in the standard. The
standard is available at www.techstreet.com or by writing to
Techstreet, 6300 Interfirst Drive, Ann Arbor, MI 48108. The cost of
this standard is $55 for an electronic copy or $65 for a printed
edition. The cost of obtaining this standard is not a significant
financial burden. Therefore, EPA concludes that the standard being
incorporated by reference is reasonably available.
_ASTM Standard D1296-01-2012, Standard Test Method for Odor of
Volatile Solvents and Diluents, July 1, 2012, ASTM International. This
test method covers a comparative procedure for observing the
characteristic and residual odors of volatile organic solvents and
diluents to determine their odor acceptability in a solvent system. The
standard is available at www.astm.org or by writing to ASTM, 100 Barr
Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959. The cost
of this standard is $39. The cost of obtaining this standard is not a
significant financial burden. Therefore, EPA concludes that the
standard being incorporated by reference is reasonably available.
EPA is incorporating by reference standards referenced in AHRI
Standard 740-2016.
Specifically, these standards are:
--ANSI/ASHRAE Standard 63.2-1996 (RA 2010) Method of Testing Liquid-
Line Filter Drier Filtration Capability, 2010, American National
Standards Institute/American Society of Heating, Refrigerating and Air-
Conditioning Engineers, Inc. The purpose of this standard is to
prescribe a laboratory test method for evaluating the filtration
capability of filters and filter driers used in liquid lines of
refrigeration systems. The standard is available at www.ashrae.org or
by mail at AHSRAE, 1791 Tullie Circle NE., Atlanta, GA 30329. The cost
is $39 for an electronic copy or printed edition. The cost of obtaining
this standard is not a significant financial burden. Therefore, EPA
concludes that the standard being incorporated by reference is
reasonably available.
--UL Standard 1963-2011, Refrigerant Recovery/Recycling Equipment,
Fourth Edition, 2011, American National Standards Institute/
Underwriters Laboratories, Inc. This standard establishes safety
requirements for and methods to evaluate refrigerant recovery and
refrigerant recovery/recycling equipment. The standard is available at
https://www.comm-2000.com or by writing to Comm 2000, 151 Eastern
Avenue, Bensenville, IL 60106. The cost is $798 for an electronic copy
and $998 for hardcopy. UL also offers a subscription service to the
Standards Certification Customer Library (SCCL) that allows unlimited
access to their standards and related documents. The cost of obtaining
this standard is not a significant financial burden for equipment
manufacturers. Therefore, EPA concludes that the UL standard being
incorporated by reference is reasonably available.
--AHRI Standard 110-2016, Air-Conditioning, Heating and Refrigerating
Equipment Nameplate Voltages, 2016, Air-Conditioning, Heating, and
Refrigeration Institute. This standard establishes voltage rating
requirements, equipment performance requirements, and conformance
conditions for air-conditioning, heating, and refrigerating equipment.
A free electronic copy of this standard is available at
www.ahrinet.org. It is also available by mail at Air-Conditioning,
Heating, and Refrigeration Institute (AHRI), 2111 Wilson Boulevard,
Suite 500, Arlington, VA 22201. The cost of obtaining this standard is
not a
[[Page 82349]]
significant financial burden. Therefore, EPA concludes that the
standard being incorporated by reference is reasonably available.
--International Standard IEC 60038, IEC Standard Voltages, Edition 7.0,
2009-06, International Electrotechnical Commission. This standard
specifies standard voltage values which are intended to serve as
preferential values for the nominal voltage of electrical supply
systems, and as reference values for equipment and system design. The
standard is available at https://www.iec.ch or by writing to Techstreet,
6300 Interfirst Drive, Ann Arbor, MI 48108. The cost of this standard
is $50. The cost of obtaining this standard is not a significant
financial burden. Therefore, EPA concludes that the standard being
incorporated by reference is reasonably available.
EPA is not incorporating by reference California Air Resources
Board, Test Procedure for Leaks from Small Containers of Automotive
Refrigerant, TP-503, as amended January 5, 2010. Rather EPA is basing
the content found in appendix E on this standard. This standard
establishes methods for assessing the leak rate from small containers
of refrigerant. A copy of this standard is available in the docket and
www.arb.ca.gov/regact/2009/hfc09/hfc09.htm.www.arb.ca.gov/regact/2009/hfc09/hfc09.htm.
At this time EPA is not finalizing an incorporation by reference
for the ASHRAE terminology found at https://www.ashrae.org/resources--
publications/free-resources/ashrae-terminology.
J. Executive Order 12898: Federal Actions To Address Environmental
Justice in Minority Populations and Low-Income Populations
EPA believes this action will not have disproportionately high and
adverse human health or environmental effects on minority or low-income
populations because it affects the level of environmental protection
equally for all affected populations. This rule amends the leak repair
requirements for appliances using ozone-depleting substances, thereby
protecting human health and the environment from increased amounts of
UV radiation and increased incidence of skin cancer. The effects of
exposure to UV radiation and the estimated reduction in emissions of
ozone-depleting substances from this rule is contained in Section
II.D.1 of this notice.
K. Congressional Review Act (CRA)
This action is subject to the CRA, and EPA will submit a rule
report to each House of the Congress and to the Comptroller General of
the United States. This action is not a ``major rule'' as defined by 5
U.S.C. 804(2).
List of Subjects in 40 CFR Part 82
Environmental protection, Air pollution control, Chemicals,
Incorporation by reference, Reporting and recordkeeping requirements.
Dated: September 26, 2016.
Gina McCarthy,
Administrator.
For the reasons set forth in the preamble, the Environmental
Protection Agency amends 40 CFR part 82 as follows:
PART 82--PROTECTION OF STRATOSPHERIC OZONE
0
1. The authority citation for part 82 continues to read as follows:
Authority: 42 U.S.C. 7414, 7601, 7671-7671q.
0
2. Revise Sec. 82.150 to read as follows:
Sec. 82.150 Purpose and scope.
(a) The purpose of this subpart is to reduce emissions of class I
and class II refrigerants and their non-exempt substitutes to the
lowest achievable level by maximizing the recapture and recycling of
such refrigerants during the maintenance, service, repair, and disposal
of appliances and restricting the sale of refrigerants consisting in
whole or in part of a class I or class II ozone-depleting substance or
their non-exempt substitutes in accordance with Title VI of the Clean
Air Act.
(b) This subpart applies to any person maintaining, servicing, or
repairing appliances containing class I, class II or non-exempt
substitute refrigerants. This subpart also applies to persons disposing
of such appliances (including small appliances and motor vehicle air
conditioners), refrigerant reclaimers, technician certifying programs,
appliance owners and operators, manufacturers of appliances,
manufacturers of recovery and/or recycling equipment, approved recovery
and/or recycling equipment testing organizations, and persons buying,
selling, or offering to sell class I, class II, or non-exempt
substitute refrigerants.
0
3. Amend Sec. 82.152 by:
0
a. Adding definitions for ``Batch,'' ``Class I,'' ``Class II,''
``Comfort cooling,'' ``Component,'' ``Leak inspection,'' ``Mothball,''
``Normal operating characteristics and conditions,'' ``Reclaim,''
``Recover,'' ``Recycle,'' ``Retire,'' ``Retrofit,'' ``Seasonal
variance,'' ``Self-sealing valve,'' and ``System receiver.''
0
b. Revising the definitions for ``Appliance,'' ``Apprentice,''
``Commercial refrigeration,'' ``Custom-built,'' ``Disposal,'' ``Follow-
up verification test,'' ``Full charge,'' ``High-pressure appliance,''
``Industrial process refrigeration,'' ``Industrial process shutdown,''
``Initial verification test,'' ``Leak rate,'' ``Low-loss fitting,''
``Low-pressure appliance,'' ``Medium-pressure appliance,'' ``MVAC-like
appliance,'' ``One-time expansion device,'' ``Opening an appliance,''
``Recovery efficiency,'' ``Refrigerant,'' ``Self-contained recovery
equipment,'' ``Small appliance,'' ``Substitute,'' ``Technician,'' and
``Very high-pressure appliance.''
0
c. Removing the definitions for ``Critical Component,'' ``Normal
operating characteristics or conditions,'' ``Normally containing a
quantity of refrigerant,'' ``Reclaim refrigerant,'' ``Recover
refrigerant,'' ``Recycle refrigerant,'' ``Suitable replacement
refrigerant,'' ``System mothballing,'' and ``Voluntary certification
program.''
The revisions and additions to read as follows:
Sec. 82.152 Definitions.
As used in this subpart, the term:
Appliance means any device which contains and uses a class I or
class II substance or substitute as a refrigerant and which is used for
household or commercial purposes, including any air conditioner, motor
vehicle air conditioner, refrigerator, chiller, or freezer. For a
system with multiple circuits, each independent circuit is considered a
separate appliance.
Apprentice means any person who is currently registered as an
apprentice in maintenance, service, repair, or disposal of appliances
with the U.S. Department of Labor's Office of Apprenticeship (or a
State Apprenticeship Council recognized by the Office of
Apprenticeship). A person may only be an apprentice for two years from
the date of first registering with that office.
* * * * *
Batch means a single bulk cylinder of refrigerant after all
reclamation has been completed prior to packaging or shipping to the
market.
Class I refers to an ozone-depleting substance that is listed in 40
CFR part 82 subpart A, appendix A.
Class II refers to an ozone-depleting substance that is listed in
40 CFR part 82 subpart A, appendix B.
Comfort cooling means the air-conditioning appliances used to
provide cooling in order to control heat and/or
[[Page 82350]]
humidity in occupied facilities including but not limited to
residential, office, and commercial buildings. Comfort cooling
appliances include but are not limited to chillers, commercial split
systems, and packaged roof-top units.
Commercial refrigeration means the refrigeration appliances used in
the retail food and cold storage warehouse sectors. Retail food
appliances include the refrigeration equipment found in supermarkets,
convenience stores, restaurants and other food service establishments.
Cold storage includes the refrigeration equipment used to store meat,
produce, dairy products, and other perishable goods.
Component means a part of the refrigerant circuit within an
appliance including, but not limited to, compressors, condensers,
evaporators, receivers, and all of its connections and subassemblies.
Custom-built means that the industrial process equipment or any of
its components cannot be purchased and/or installed without being
uniquely designed, fabricated and/or assembled to satisfy a specific
set of industrial process conditions.
Disposal means the process leading to and including:
(1) The discharge, deposit, dumping or placing of any discarded
appliance into or on any land or water;
(2) The disassembly of any appliance for discharge, deposit,
dumping or placing of its discarded component parts into or on any land
or water;
(3) The vandalism of any appliance such that the refrigerant is
released into the environment or would be released into the environment
if it had not been recovered prior to the destructive activity;
(4) The disassembly of any appliance for reuse of its component
parts; or
(5) The recycling of any appliance for scrap.
Follow-up verification test means those tests that involve checking
the repairs to an appliance after a successful initial verification
test and after the appliance has returned to normal operating
characteristics and conditions to verify that the repairs were
successful. Potential methods for follow-up verification tests include,
but are not limited to, the use of soap bubbles as appropriate,
electronic or ultrasonic leak detectors, pressure or vacuum tests,
fluorescent dye and black light, infrared or near infrared tests, and
handheld gas detection devices.
Full charge means the amount of refrigerant required for normal
operating characteristics and conditions of the appliance as determined
by using one or a combination of the following four methods:
(1) Use of the equipment manufacturer's determination of the full
charge;
(2) Use of appropriate calculations based on component sizes,
density of refrigerant, volume of piping, and other relevant
considerations;
(3) Use of actual measurements of the amount of refrigerant added
to or evacuated from the appliance, including for seasonal variances;
and/or
(4) Use of an established range based on the best available data
regarding the normal operating characteristics and conditions for the
appliance, where the midpoint of the range will serve as the full
charge.
High-pressure appliance means an appliance that uses a refrigerant
with a liquid phase saturation pressure between 170 psia and 355 psia
at 104[emsp14][deg]F. Examples include but are not limited to
appliances using R-22, R-407A, R-407C, R-410A, and R-502.
Industrial process refrigeration means complex customized
appliances that are directly linked to the processes used in, for
example, the chemical, pharmaceutical, petrochemical, and manufacturing
industries. This sector also includes industrial ice machines,
appliances used directly in the generation of electricity, and ice
rinks. Where one appliance is used for both industrial process
refrigeration and other applications, it will be considered industrial
process refrigeration equipment if 50 percent or more of its operating
capacity is used for industrial process refrigeration.
Industrial process shutdown means when an industrial process or
facility temporarily ceases to operate or manufacture whatever is being
produced at that facility.
Initial verification test means those leak tests that are conducted
after the repair is finished to verify that a leak or leaks have been
repaired before refrigerant is added back to the appliance.
Leak inspection means the examination of an appliance to determine
the location of refrigerant leaks. Potential methods include, but are
not limited to, ultrasonic tests, gas-imaging cameras, bubble tests as
appropriate, or the use of a leak detection device operated and
maintained according to manufacturer guidelines. Methods that determine
whether the appliance is leaking refrigerant but not the location of a
leak, such as standing pressure/vacuum decay tests, sight glass checks,
viewing receiver levels, pressure checks, and charging charts, must be
used in conjunction with methods that can determine the location of a
leak.
Leak rate means the rate at which an appliance is losing
refrigerant, measured between refrigerant charges. The leak rate is
expressed in terms of the percentage of the appliance's full charge
that would be lost over a 12-month period if the current rate of loss
were to continue over that period. The rate must be calculated using
one of the following methods. The same method must be used for all
appliances subject to the leak repair requirements located at an
operating facility.
(1) Annualizing Method. (i) Step 1. Take the number of pounds of
refrigerant added to the appliance to return it to a full charge,
whether in one addition or if multiple additions related to same leak,
and divide it by the number of pounds of refrigerant the appliance
normally contains at full charge;
(ii) Step 2. Take the shorter of the number of days that have
passed since the last day refrigerant was added or 365 days and divide
that number by 365 days;
(iii) Step 3. Take the number calculated in Step 1 and divide it by
the number calculated in Step 2; and
(iv) Step 4. Multiply the number calculated in Step 3 by 100 to
calculate a percentage. This method is summarized in the following
formula:
[GRAPHIC] [TIFF OMITTED] TR18NO16.074
(2) Rolling Average Method. (i) Step 1. Take the sum of the pounds
of refrigerant added to the appliance over the previous 365-day period
(or over the period that has passed since the last successful follow-up
verification test
[[Page 82351]]
showing all identified leaks in the appliance were repaired, if that
period is less than one year);
(ii) Step 2. Divide the result of Step 1 by the pounds of
refrigerant the appliance normally contains at full charge; and
(iii) Step 3. Multiply the result of Step 2 by 100 to obtain a
percentage. This method is summarized in the following formula:
[GRAPHIC] [TIFF OMITTED] TR18NO16.075
Low-loss fitting means any device that is intended to establish a
connection between hoses, appliances, or recovery and/or recycling
machines and that is designed to close automatically or to be closed
manually when disconnected, minimizing the release of refrigerant from
hoses, appliances, and recovery and/or recycling machines.
Low-pressure appliance means an appliance that uses a refrigerant
with a liquid phase saturation pressure below 45 psia at
104[emsp14][deg]F. Examples include but are not limited to appliances
using R-11, R-123, R-113, and R-245fa.
* * * * *
Medium-pressure appliance means an appliance that uses a
refrigerant with a liquid phase saturation pressure between 45 psia and
170 psia at 104 [deg]F. Examples include but are not limited to
appliances using R-114, R-124, R-12, R-134a, and R-500.
Mothball means to evacuate refrigerant from an appliance, or the
affected isolated section or component of an appliance, to at least
atmospheric pressure, and to temporarily shut down that appliance.
* * * * *
MVAC-like appliance means a mechanical vapor compression, open-
drive compressor appliance with a full charge of 20 pounds or less of
refrigerant used to cool the driver's or passenger's compartment of
off-road vehicles or equipment. This includes, but is not limited to,
the air-conditioning equipment found on agricultural or construction
vehicles. This definition is not intended to cover appliances using R-
22 refrigerant.
Normal operating characteristics and conditions means appliance
operating temperatures, pressures, fluid flows, speeds, and other
characteristics, including full charge of the appliance, that would be
expected for a given process load and ambient condition during normal
operation. Normal operating characteristics and conditions are marked
by the absence of atypical conditions affecting the operation of the
appliance.
One-time expansion device means an appliance that relies on the
release of its refrigerant charge to the environment in order to
provide a cooling effect. These are typically single releases but could
also include products that are designed to release refrigerant to the
environment through multiple individual charges.
Opening an appliance means any maintenance, service, repair, or
disposal of an appliance that would release any refrigerant in the
appliance to the atmosphere. Connecting and disconnecting hoses and
gauges to measure pressures, add refrigerant, or recover refrigerant
from the appliance are not considered ``opening an appliance.''
* * * * *
Reclaim means to reprocess recovered refrigerant to all of the
specifications in appendix A of this subpart (based on AHRI Standard
700-2016, Specifications for Refrigerants) that are applicable to that
refrigerant and to verify that the refrigerant meets these
specifications using the analytical methodology prescribed in section 5
of appendix A of this subpart.
Recover means to remove refrigerant in any condition from an
appliance and to store it in an external container without necessarily
testing or processing it in any way.
Recovery efficiency means the percentage of refrigerant in an
appliance that is recovered by a piece of recovery and/or recycling
equipment.
Recycle, when referring to refrigerant, means to extract
refrigerant from an appliance (except MVACs) and clean it for reuse in
equipment of the same owner without meeting all of the requirements for
reclamation. In general, recycled refrigerant is cleaned using oil
separation and single or multiple passes through devices, such as
replaceable core filter-driers, which reduce moisture, acidity, and
particulate matter.
Refrigerant means, for purposes of this subpart, any substance,
including blends and mixtures, consisting in part or whole of a class I
or class II ozone-depleting substance or substitute that is used for
heat transfer purposes and provides a cooling effect.
Refrigerant circuit means the parts of an appliance that are
normally connected to each other (or are separated only by internal
valves) and are designed to contain refrigerant.
Retire, when referring to an appliance, means the removal of the
refrigerant and the disassembly or impairment of the refrigerant
circuit such that the appliance as a whole is rendered unusable by any
person in the future.
Retrofit means to convert an appliance from one refrigerant to
another refrigerant. Retrofitting includes the conversion of the
appliance to achieve system compatibility with the new refrigerant and
may include, but is not limited to, changes in lubricants, gaskets,
filters, driers, valves, o-rings or appliance components.
Seasonal variance means the removal of refrigerant from an
appliance due to a change in ambient conditions caused by a change in
season, followed by the subsequent addition of an amount that is less
than or equal to the amount of refrigerant removed in the prior change
in season, where both the removal and addition of refrigerant occurs
within one consecutive 12-month period.
Self-contained recovery equipment means refrigerant recovery and/or
recycling equipment that is capable of removing the refrigerant from an
appliance without the assistance of components contained in the
appliance.
Self-sealing valve means a valve affixed to a container of
refrigerant that automatically seals when not dispensing refrigerant
and meets or exceeds established performance criteria as identified in
Sec. 82.154(c)(2).
Small appliance means any appliance that is fully manufactured,
charged, and hermetically sealed in a factory with five (5) pounds or
less of refrigerant, including, but not limited to, refrigerators and
freezers (designed for home, commercial, or consumer use), medical or
industrial research refrigeration equipment, room air
[[Page 82352]]
conditioners (including window air conditioners, portable air
conditioners, and packaged terminal air heat pumps), dehumidifiers,
under-the-counter ice makers, vending machines, and drinking water
coolers.
Substitute means any chemical or product, whether existing or new,
that is used as a refrigerant to replace a class I or II ozone-
depleting substance. Examples include, but are not limited to
hydrofluorocarbons, perfluorocarbons, hydrofluoroolefins,
hydrofluoroethers, hydrocarbons, ammonia, carbon dioxide, and blends
thereof. As used in this subpart, the term ``exempt substitutes''
refers to certain substitutes when used in certain end-uses that are
specified in Sec. 82.154(a)(1) as exempt from the venting prohibition
and the requirements of this subpart, and the term ``non-exempt
substitutes'' refers to all other substitutes and end-uses not so
specified in Sec. 82.154(a)(1).
* * * * *
System receiver means the isolated portion of the appliance, or a
specific vessel within the appliance, that is used to hold the
refrigerant charge during the servicing or repair of that appliance.
Technician means any person who in the course of maintenance,
service, or repair of an appliance (except MVACs) could be reasonably
expected to violate the integrity of the refrigerant circuit and
therefore release refrigerants into the environment. Technician also
means any person who in the course of disposal of an appliance (except
small appliances, MVACs, and MVAC-like appliances) could be reasonably
expected to violate the integrity of the refrigerant circuit and
therefore release refrigerants from the appliances into the
environment. Activities reasonably expected to violate the integrity of
the refrigerant circuit include but are not limited to: Attaching or
detaching hoses and gauges to and from the appliance; adding or
removing refrigerant; adding or removing components; and cutting the
refrigerant line. Activities such as painting the appliance, rewiring
an external electrical circuit, replacing insulation on a length of
pipe, or tightening nuts and bolts are not reasonably expected to
violate the integrity of the refrigerant circuit. Activities conducted
on appliances that have been properly evacuated pursuant to Sec.
82.156 are not reasonably expected to release refrigerants unless the
activity includes adding refrigerant to the appliance. Technicians
could include but are not limited to installers, contractor employees,
in-house service personnel, and owners and/or operators of appliances.
Very high-pressure appliance means an appliance that uses a
refrigerant with a critical temperature below 104[emsp14][deg]F or with
a liquid phase saturation pressure above 355 psia at 104[emsp14][deg]F.
Examples include but are not limited to appliances using R-13, R-23, R-
503, R-508A, and R-508B.
0
4. Revise Sec. 82.154 to read as follows:
Sec. 82.154 Prohibitions.
(a) Venting Prohibition. (1) No person maintaining, servicing,
repairing, or disposing of an appliance or industrial process
refrigeration may knowingly vent or otherwise release into the
environment any refrigerant from such appliances. Notwithstanding any
other provision of this subpart, the following substitutes in the
following end-uses are exempt from this prohibition and from the
requirements of this subpart:
(i) Carbon dioxide in any application;
(ii) Nitrogen in any application;
(iii) Water in any application;
(iv) Ammonia in commercial or industrial process refrigeration or
in absorption units;
(v) Chlorine in industrial process refrigeration (processing of
chlorine and chlorine compounds);
(vi) Hydrocarbons in industrial process refrigeration (processing
of hydrocarbons);
(vii) Ethane (R-170) in very low temperature refrigeration
equipment and equipment for non-mechanical heat transfer;
(viii) Propane (R-290) in retail food refrigerators and freezers
(stand-alone units only); household refrigerators, freezers, and
combination refrigerators and freezers; self-contained room air
conditioners for residential and light commercial air-conditioning;
heat pumps; and vending machines;
(ix) Isobutane (R-600a) in retail food refrigerators and freezers
(stand-alone units only); household refrigerators, freezers, and
combination refrigerators and freezers; and vending machines;
(x) R-441A in retail food refrigerators and freezers (stand-alone
units only); household refrigerators, freezers, and combination
refrigerators and freezers; self-contained room air conditioners for
residential and light commercial air-conditioning; heat pumps; and
vending machines.
(2) De minimis releases associated with good faith attempts to
recycle or recover refrigerants are not subject to this prohibition.
Except for exempt substitutes, refrigerant releases are de minimis only
if they occur when:
(i) The applicable practices in Sec. 82.155, Sec. 82.156, and
Sec. 82.157 are observed, recovery and/or recycling machines that meet
the requirements in Sec. 82.158 are used whenever refrigerant is
removed from an appliance, the technician certification provisions in
Sec. 82.161 are observed, and the reclamation requirements in Sec.
82.164 are observed; or
(ii) The requirements in subpart B of this part are observed.
(3) The knowing release of a class I or class II refrigerant or a
non-exempt substitute refrigerant after its recovery from an appliance
is a violation of the venting prohibition.
(b) No person may maintain, service, repair, or dispose of an
appliance containing a class I or class II refrigerant or a non-exempt
substitute refrigerant without:
(1) Observing the applicable practices in Sec. 82.155, Sec.
82.156, and Sec. 82.157; and
(2) Using recovery and/or recycling equipment that is certified for
that type of refrigerant and appliance under Sec. 82.158.
(c) Sales Restriction. (1) No person may sell or distribute, or
offer for sale or distribution, any substance that consists in whole or
in part of a class I or class II substance or, starting on January 1,
2018, any non-exempt substitute for use as a refrigerant unless:
(i) The buyer has been certified as a Type I, Type II, Type III, or
Universal technician under Sec. 82.161;
(ii) The buyer employs at least one technician who is certified as
a Type I, Type II, Type III, or Universal technician under Sec. 82.161
and provides proof of such to the seller;
(iii) The buyer has been certified in accordance with 40 CFR part
82, subpart B and the refrigerant is acceptable for use in MVACs under
40 CFR part 82, subpart G;
(iv) The buyer employs at least one person who is certified under
40 CFR part 82, subpart B, and provides proof of such to the seller and
the refrigerant is acceptable for use in MVACs under 40 CFR part 82,
subpart G. Nothing in this provision relieves persons of the
requirements of Sec. 82.34(b) or Sec. 82.42(b);
(v) The refrigerant is sold only for eventual resale to persons
certified under Sec. 82.161 or 40 CFR part 82, subpart B or to
appliance manufacturers (e.g., sold by a manufacturer to a wholesaler,
sold by a technician to a reclaimer);
(vi) The refrigerant is sold to an appliance manufacturer;
(vii) The refrigerant is contained in an appliance with a fully
assembled refrigerant circuit or an appliance component;
(viii) The refrigerant is charged into an appliance by a certified
technician or an apprentice during maintenance, service, or repair of
the appliance; or
[[Page 82353]]
(ix) The non-exempt substitute refrigerant is intended for use in
an MVAC and is sold in a container designed to hold two pounds or less
of refrigerant, has a unique fitting, and has a self-sealing valve.
(2) Self-sealing valve specifications. This provision applies
starting January 1, 2018, for all containers holding two pounds or less
of non-exempt substitute refrigerant for use in an MVAC that are
manufactured or imported on or after that date.
(i) Each container holding two pounds or less of non-exempt
substitute refrigerant for use in an MVAC must be equipped with a
single self-sealing valve that automatically closes and seals when not
dispensing refrigerant.
(ii) The leakage rate from each container must not exceed 3.00
grams per year when the self-sealing valve is closed. This leakage rate
applies to new, full containers as well as containers that may be
partially full.
(iii) The leakage rate must be determined using the standards
described in appendix E (incorporated by reference, see Sec. 82.168).
(iv) All testing to demonstrate compliance with this paragraph must
be conducted by an independent test laboratory in the United States.
For purposes of this requirement, an independent test laboratory is one
that is not owned, operated, or affiliated with the applicant
certifying equipment and/or products.
(3) Recordkeeping. (i) Persons who sell or distribute, or offer to
sell or distribute, any class I or class II refrigerant, or, starting
on January 1, 2018, any non-exempt substitute refrigerant must keep
invoices that indicate the name of the purchaser, the date of sale, and
the quantity of refrigerant purchased unless they are selling exempt
substitutes (those substitutes used in the end-uses specified as exempt
in paragraph (a)(1) of this section) or small cans of MVAC refrigerant
in accordance with paragraph (c)(1)(ix) of this section. In instances
where the buyer employs a person certified under Sec. 82.161 or 40 CFR
part 82, subpart B, the seller must keep the documentation provided by
the buyer to demonstrate such employment. All records must be kept for
three years.
(ii) Electronic or paper copies of all records described in
appendix E must be maintained by manufacturers of containers holding
two pounds or less of non-exempt substitute refrigerant for use in an
MVAC to verify self-sealing valves meet the requirements specified in
paragraph (c)(2) of this section. All records must be kept for three
years after each purchase.
(d) Sale of Used Refrigerant. No person may sell or distribute, or
offer for sale or distribution, for use as a refrigerant any class I or
class II substance or non-exempt substitute consisting wholly or in
part of used refrigerant unless the refrigerant:
(1) Has been reclaimed by a person who has been certified as a
reclaimer under Sec. 82.164;
(2) was used only in an MVAC or MVAC-like appliance and is to be
used only in an MVAC or MVAC-like appliance and recycled in accordance
with 40 CFR part 82, subpart B;
(3) is contained in an appliance that is sold or offered for sale
together with a fully assembled refrigerant circuit;
(4) is being transferred between or among a parent company and one
or more of its subsidiaries, or between or among subsidiaries having
the same parent company; or
(5) is being transferred between or among a Federal agency or
department and a facility or facilities owned by the same Federal
agency or department.
(e) Manufacture and Sale of Appliances. (1) No person may sell or
distribute, or offer for sale or distribution, any appliance (except
small appliances and appliances containing only refrigerants that have
been exempted under paragraph (a)(1) of this section) unless it is
equipped with a servicing aperture to facilitate the removal of
refrigerant at servicing and disposal.
(2) No person may sell or distribute, or offer for sale or
distribution, any small appliance (except appliances containing only
refrigerants that have been exempted under paragraph (a)(1) of this
section) unless it is equipped with a process stub to facilitate the
removal of refrigerant at servicing and disposal.
(f) One-time expansion devices. No person may manufacture or import
a one-time expansion device unless the only refrigerants it contains
have been exempted under paragraph (a)(1) of this section.
(g) Rules stayed for consideration. Notwithstanding any other
provisions of this subpart, the effectiveness of 40 CFR 82.154(c), only
as it applies to refrigerant contained in appliances without fully
assembled refrigerant circuits, is stayed from April 27, 1995, until
EPA takes final action on its reconsideration of these provisions. EPA
will publish any such final action in the Federal Register.
0
5. Add Sec. 82.155 to subpart F to read as follows:
Sec. 82.155 Safe disposal of appliances.
Until January 1, 2018, this section applies only to disposal of
appliances containing class I and class II refrigerants. Starting on
January 1, 2018, this section applies to disposal of appliances
containing any class I or class II refrigerant or any non-exempt
substitute refrigerant.
(a) Persons recovering refrigerant from a small appliance, MVAC, or
MVAC-like appliance for purposes of disposal of these appliances must
evacuate refrigerant to the levels in Sec. 82.156(b) through (d) using
recovery equipment that meets the standards in Sec. 82.158(e) through
(g), or 40 CFR part 82 subpart B, as applicable.
(b) The final processor--i.e., persons who take the final step in
the disposal process (including but not limited to scrap recyclers and
landfill operators) of a small appliance, MVAC, or MVAC-like
appliance--must either:
(1) Recover any remaining refrigerant from the appliance in
accordance with paragraph (a) of this section; or
(2) Verify using a signed statement or a contract that all
refrigerant that had not leaked previously has been recovered from the
appliance or shipment of appliances in accordance with paragraph (a) of
this section. If using a signed statement, it must include the name and
address of the person who recovered the refrigerant and the date the
refrigerant was recovered. If using a signed contract between the
supplier and the final processor, it must either state that the
supplier will recover any remaining refrigerant from the appliance or
shipment of appliances in accordance with paragraph (a) of this section
prior to delivery or verify that the refrigerant had been properly
recovered prior to receipt by the supplier.
(i) It is a violation of this subpart to accept a signed statement
or contract if the person receiving the statement or contract knew or
had reason to know that the signed statement or contract is false.
(ii) The final processor must notify suppliers of appliances that
refrigerant must be properly recovered in accordance with paragraph (a)
of this section before delivery of the items to the facility. The form
of this notification may be signs, letters to suppliers, or other
equivalent means.
(iii) If all the refrigerant has leaked out of the appliance, the
final processor must obtain a signed statement that all the refrigerant
in the appliance had leaked out prior to delivery to the final
processor and recovery is not possible. ``Leaked out'' in this context
means those situations in which the refrigerant has escaped because of
system failures, accidents, or other unavoidable occurrences not caused
by a person's
[[Page 82354]]
negligence or deliberate acts such as cutting refrigerant lines.
(c) Recordkeeping. The final processor of a small appliance, MVAC,
or MVAC-like appliance must keep a copy of all the signed statements or
contracts obtained under paragraph (b)(2) of this section on site, in
hard copy or in electronic format, for three years.
0
6. Amend Sec. 82.156 by:
0
(a) Revising the section heading;
0
(b) Adding an introductory paragraph;
0
(c) Revising paragraphs (a) through (h); and
0
(d) Adding paragraph (i) introductory text; and
0
(e) Adding paragraph (j).
The revisions and additions to read as follows:
Sec. 82.156 Proper evacuation of refrigerant from appliances.
Until January 1, 2018, this section applies only to evacuation of
refrigerant from appliances containing class I or class II
refrigerants. Starting on January 1, 2018, this section applies to
evacuation of refrigerant from appliances containing any class I or
class II refrigerant or any non-exempt substitute refrigerant,
excluding paragraph (i) of this section which applies only to
appliances containing class I or class II refrigerants until January 1,
2019. Starting January 1, 2019, the provisions in Sec. 82.157 apply in
lieu of paragraph (i) of this section.
(a) Appliances (except small appliances, MVACs, and MVAC-like
appliances). Before opening appliances (except small appliances, MVACs,
and MVAC-like appliances) or disposing of such appliances, technicians
must evacuate the refrigerant, including all the liquid refrigerant, to
the levels in Table 1 using a recovery and/or recycling machine
certified pursuant to Sec. 82.158 unless the situations in paragraphs
(a)(1) or (2) of this section apply. Technicians may evacuate either
the entire appliance or the part to be serviced, if the refrigerant in
the part can be isolated to a system receiver. A technician must verify
that the applicable level of evacuation has been reached in the
appliance or the part before it is opened.
(1) If evacuation of the appliance to the atmosphere is not to be
performed after completion of the maintenance, service, or repair, and
if the maintenance, service, or repair is not major as defined at Sec.
82.152, the appliance must:
(i) Be evacuated to a pressure no higher than 0 psig before it is
opened if it is a medium-, high- or very high-pressure appliance;
(ii) Be pressurized to a pressure no higher than 0 psig before it
is opened if it is a low-pressure appliance. Persons must cover
openings when isolation is not possible. Persons pressurizing low-
pressure appliances that use refrigerants with boiling points at or
below 85 degrees Fahrenheit at 29.9 inches of mercury (standard
atmospheric pressure), must not use methods such as nitrogen that
require subsequent purging. Persons pressurizing low-pressure
appliances that use refrigerants with boiling points above 85 degrees
Fahrenheit at 29.9 inches of mercury, must use heat to raise the
internal pressure of the appliance as much as possible, but may use
nitrogen to raise the internal pressure of the appliance from the level
attainable through use of heat to atmospheric pressure; or
(iii) For the purposes of oil changes, be evacuated or pressurized
to a pressure no higher than 5 psig, before it is opened; or drain the
oil into a system receiver to be evacuated or pressurized to a pressure
no higher than 5 psig.
(2) If leaks in the appliance make evacuation to the levels in
Table 1 unattainable or would substantially contaminate the refrigerant
being recovered, persons opening or disposing of the appliance must:
(i) Isolate leaking from non-leaking components wherever possible;
(ii) Evacuate non-leaking components to be opened or disposed of to
the levels specified in Table 1; and
(iii) Evacuate leaking components to be opened or disposed of to
the lowest level that can be attained without substantially
contaminating the refrigerant. This level may not exceed 0 psig.
(3) Recordkeeping. As of January 1, 2018, technicians evacuating
refrigerant from appliances with a full charge of more than 5 and less
than 50 pounds of refrigerant for purposes of disposal of that
appliance must keep records documenting the following for three years:
(i) The company name, location of the appliance, date of recovery,
and type of refrigerant recovered for each appliance;
(ii) The total quantity of refrigerant, by type, recovered from all
disposed appliances in each calendar month; and
(iii) The quantity of refrigerant, by type, transferred for
reclamation and/or destruction, the person to whom it was transferred,
and the date of transfer.
Table 1--Required Levels of Evacuation for Appliances
[Except for small appliances, MVACs, and MVAC-like appliances]
----------------------------------------------------------------------------------------------------------------
Inches of Hg vacuum (relative to standard atmospheric pressure of 29.9
inches Hg)
-------------------------------------------------------------------------
Type of appliance Using recovery and/or recycling Using recovery and/or recycling
equipment manufactured or imported equipment manufactured or imported
before November 15, 1993 on or after November 15, 1993
----------------------------------------------------------------------------------------------------------------
Very high-pressure appliance.......... 0.................................. 0.
High-pressure appliance, or isolated 0.................................. 0.
component of such appliance, with a
full charge of less than 200 pounds
of refrigerant.
High-pressure appliance, or isolated 4.................................. 10.
component of such appliance, with a
full charge of 200 pounds or more of
refrigerant.
Medium-pressure appliance, or isolated 4.................................. 10.
component of such appliance, with a
full charge of less than 200 pounds
of refrigerant.
Medium-pressure appliance, or isolated 4.................................. 15.
component of such appliance, with a
full charge of 200 pounds or more of
refrigerant.
Low-pressure appliance................ 25 mm Hg absolute.................. 25 mm Hg absolute.
----------------------------------------------------------------------------------------------------------------
[[Page 82355]]
(b) Small appliances. Before opening a small appliance or when
disposing of a small appliance, persons must recover refrigerant, using
a recovery and/or recycling machine certified pursuant to Sec. 82.158,
according to the following conditions:
(1) When using recovery equipment manufactured before November 15,
1993, recover 80 percent of the refrigerant in the small appliance; or
(2) When using recovery equipment manufactured on or after November
15, 1993, recover 90 percent of the refrigerant in the appliance when
the compressor in the appliance is functioning, or 80 percent of the
refrigerant in the appliance when the compressor in the appliance is
not functioning; or
(3) Evacuate the appliance to four inches of mercury vacuum.
(c) MVAC-like appliances. Persons may only open MVAC-like
appliances while properly using, as defined at Sec. 82.32(e), recovery
and/or recycling equipment certified pursuant to Sec. 82.158(f) or
Sec. 82.36, as applicable. All persons recovering refrigerant from
MVAC-like appliances for purposes of disposal of these appliances must
evacuate the appliance in accordance with 40 CFR part 82, subpart B or
reduce the system pressure to or below 102 mm of mercury vacuum.
(d) MVACs. All persons recovering refrigerant from MVACs for
purposes of disposal of these appliances must evacuate the appliance in
accordance with 40 CFR part 82, subpart B or reduce the system pressure
to or below 102 mm of mercury vacuum.
(e) System-dependent equipment may not be used with appliances with
a full charge of more than 15 pounds of refrigerant, unless the system-
dependent equipment is permanently attached to the appliance as a pump-
out unit.
(f) Persons who maintain, service, repair, or dispose of only
appliances that they own and that contain pump-out units are exempt
from the requirement to use certified, self-contained recovery and/or
recycling equipment.
(g) All recovery and/or recycling equipment must be used in
accordance with the manufacturer's directions unless such directions
conflict with the requirements of this subpart.
(h) Refrigerant may be returned to the appliance from which it is
recovered or to another appliance owned by the same person without
being recycled or reclaimed, unless the appliance is an MVAC or MVAC-
like appliance.
(i) The provisions in this paragraph (i) apply to owners and
operators of appliances containing 50 or more pounds of class I and
class II refrigerants only until January 1, 2019. The definitions in
paragraph (j) of this section apply for purposes of this paragraph (i)
in lieu of the definitions in Sec. 82.152.
* * * * *
(j) Definitions for the leak repair provisions in 82.156(i). These
definitions are not applicable to any other portion of subpart F other
than 82.156(i). Along with paragraph (i) of this section, the
definitions in this section apply only until January 1, 2019.
Appliance means, for the purposes of paragraph (i) of this section,
any device which contains and uses a refrigerant and which is used for
household or commercial purposes, including any air conditioner,
refrigerator, chiller, or freezer.
Commercial refrigeration means, for the purposes of paragraph (i)
of this section, the refrigeration appliances utilized in the retail
food and cold storage warehouse sectors. Retail food includes the
refrigeration equipment found in supermarkets, convenience stores,
restaurants and other food service establishments. Cold storage
includes the equipment used to store meat, produce, dairy products, and
other perishable goods. All of the equipment contains large refrigerant
charges, typically over 75 pounds.
Critical component means, for the purposes of paragraph (i) of this
section, a component without which industrial process refrigeration
equipment will not function, will be unsafe in its intended
environment, and/or will be subject to failures that would cause the
industrial process served by the refrigeration appliance to be unsafe.
Custom-built means, for the purposes of paragraph (i) of this
section, that the equipment or any of its critical components cannot be
purchased and/or installed without being uniquely designed, fabricated
and/or assembled to satisfy a specific set of industrial process
conditions.
Follow-up verification test means, for the purposes of paragraph
(i) of this section, those tests that involve checking the repairs
within 30 days of the appliance's returning to normal operating
characteristics and conditions. Follow-up verification tests for
appliances from which the refrigerant charge has been evacuated means a
test conducted after the appliance or portion of the appliance has
resumed operation at normal operating characteristics and conditions of
temperature and pressure, except in cases where sound professional
judgment dictates that these tests will be more meaningful if performed
prior to the return to normal operating characteristics and conditions.
A follow-up verification test with respect to repairs conducted without
evacuation of the refrigerant charge means a reverification test
conducted after the initial verification test and usually within 30
days of normal operating conditions. Where an appliance is not
evacuated, it is only necessary to conclude any required changes in
pressure, temperature or other conditions to return the appliance to
normal operating characteristics and conditions.
Full charge means, for the purposes of paragraph (i) of this
section, the amount of refrigerant required for normal operating
characteristics and conditions of the appliance as determined by using
one or a combination of the following four methods:
(i) Use the equipment manufacturer's determination of the correct
full charge for the equipment;
(ii) Determine the full charge by making appropriate calculations
based on component sizes, density of refrigerant, volume of piping, and
other relevant considerations;
(iii) Use actual measurements of the amount of refrigerant added or
evacuated from the appliance; and/or
(iv) Use an established range based on the best available data
regarding the normal operating characteristics and conditions for the
appliance, where the midpoint of the range will serve as the full
charge, and where records are maintained in accordance with Sec.
82.166(q).
Industrial process refrigeration means, for the purposes of
paragraph (i) of this section, complex customized appliances used in
the chemical, pharmaceutical, petrochemical and manufacturing
industries. These appliances are directly linked to the industrial
process. This sector also includes industrial ice machines, appliances
used directly in the generation of electricity, and ice rinks. Where
one appliance is used for both industrial process refrigeration and
other applications, it will be considered industrial process
refrigeration equipment if 50 percent or more of its operating capacity
is used for industrial process refrigeration.
Industrial process shutdown means, for the purposes of paragraph
(i) of this section, that an industrial process or facility temporarily
ceases to operate or manufacture whatever is being produced at that
facility.
Initial verification test means, for the purposes of paragraph (i)
of this section, those leak tests that are conducted as soon as
practicable after the repair is
[[Page 82356]]
completed. An initial verification test, with regard to the leak
repairs that require the evacuation of the appliance or portion of the
appliance, means a test conducted prior to the replacement of the full
refrigerant charge and before the appliance or portion of the appliance
has reached operation at normal operating characteristics and
conditions of temperature and pressure. An initial verification test
with regard to repairs conducted without the evacuation of the
refrigerant charge means a test conducted as soon as practicable after
the conclusion of the repair work.
Leak rate means, for the purposes of paragraph (i) of this section,
the rate at which an appliance is losing refrigerant, measured between
refrigerant charges. The leak rate is expressed in terms of the
percentage of the appliance's full charge that would be lost over a 12-
month period if the current rate of loss were to continue over that
period. The rate is calculated using only one of the following methods
for all appliances located at an operating facility.
(i) Method 1. (A) Step 1. Take the number of pounds of refrigerant
added to the appliance to return it to a full charge and divide it by
the number of pounds of refrigerant the appliance normally contains at
full charge;
(B) Step 2. Take the shorter of the number of days that have passed
since the last day refrigerant was added or 365 days and divide that
number by 365 days;
(C) Step 3. Take the number calculated in Step 1. and divide it by
the number calculated in Step 2.; and
(D) Step 4. Multiply the number calculated in Step 3. by 100 to
calculate a percentage. This method is summarized in the following
formula:
[GRAPHIC] [TIFF OMITTED] TR18NO16.076
(ii) Method 2. (A) Step 1. Take the sum of the quantity of
refrigerant added to the appliance over the previous 365-day period (or
over the period that has passed since leaks in the appliance were last
repaired, if that period is less than one year),
(B) Step 2. Divide the result of Step 1. by the quantity (e.g.,
pounds) of refrigerant the appliance normally contains at full charge,
and
(C) Step 3. Multiply the result of Step 2. by 100 to obtain a
percentage. This method is summarized in the following formula:
[GRAPHIC] [TIFF OMITTED] TR18NO16.077
Normal operating characteristics or conditions means, for the
purposes of paragraph (i) of this section, temperatures, pressures,
fluid flows, speeds and other characteristics that would normally be
expected for a given process load and ambient condition during
operation. Normal operating characteristics and conditions are marked
by the absence of atypical conditions affecting the operation of the
refrigeration appliance.
Normally containing a quantity of refrigerant means, for the
purposes of paragraph (i) of this section, containing the quantity of
refrigerant within the appliance or appliance component when the
appliance is operating with a full charge of refrigerant.
Refrigerant means, for the purposes of paragraph (i) of this
section, any substance consisting in part or whole of a class I or
class II ozone-depleting substance that is used for heat transfer
purposes and provides a cooling effect.
Substitute means, for the purposes of paragraph (i) of this
section, any chemical or product, whether existing or new, that is used
by any person as an EPA approved replacement for a class I or II ozone-
depleting substance in a given refrigeration or air-conditioning end-
use.
Suitable replacement refrigerant means, for the purposes of
paragraph (i) of this section, a refrigerant that is acceptable under
section 612(c) of the Clean Air Act Amendments of 1990 and all
regulations promulgated under that section, compatible with other
materials with which it may come into contact, and able to achieve the
temperatures required for the affected industrial process in a
technically feasible manner.
System mothballing means, for the purposes of paragraph (i) of this
section, the intentional shutting down of a refrigeration appliance
undertaken for an extended period of time by the owners or operators of
that facility, where the refrigerant has been evacuated from the
appliance or the affected isolated section of the appliance, at least
to atmospheric pressure.
0
7. Add Sec. 82.157 to Subpart F to read as follows:
Sec. 82.157 Appliance maintenance and leak repair.
(a) Applicability. This section applies as of January 1, 2019. This
section applies only to appliances with a full charge of 50 or more
pounds of any class I or class II refrigerant or any non-exempt
substitute refrigerant. Unless otherwise specified, the requirements of
this section apply to the owner or operator of the appliance.
(b) Leak Rate Calculation. Persons adding or removing refrigerant
from an appliance must, upon conclusion of that service, provide the
owner or operator with documentation that meets the applicable
requirements of paragraph (l)(2) of this section. The owner or operator
must calculate the leak rate every time refrigerant is added to an
appliance unless the addition is made immediately following a retrofit,
installation of a new appliance, or qualifies as a seasonal variance.
(c) Requirement to Address Leaks through Appliance Repair, or
Retrofitting or Retiring an Appliance. (1) Owners or operators must
repair appliances with a leak rate over the
[[Page 82357]]
applicable leak rate in this paragraph in accordance with paragraphs
(d) through (f) of this section unless the owner or operator elects to
retrofit or retire the appliance in compliance with paragraphs (h) and
(i) of this section. If the owner or operator elects to repair leaks,
but fails to bring the leak rate below the applicable leak rate, the
owner or operator must create and implement a retrofit or retirement
plan in accordance with paragraphs (h) and (i) of this section.
(2) Leak Rates:
(i) 20 percent leak rate for commercial refrigeration equipment;
(ii) 30 percent leak rate for industrial process refrigeration
equipment; and
(iii) 10 percent leak rate for comfort cooling appliances or other
appliances with a full charge of 50 or more pounds of refrigerant not
covered by (c)(2)(i) or (ii) of this section.
(d) Appliance Repair. Owners or operators must identify and repair
leaks in accordance with this paragraph within 30 days (or 120 days if
an industrial process shutdown is required) of when refrigerant is
added to an appliance exceeding the applicable leak rate in paragraph
(c) of this section.
(1) A certified technician must conduct a leak inspection, as
described in paragraph (g) of this section, to identify the location of
leaks.
(2) Leaks must be repaired such that the leak rate is brought below
the applicable leak rate. This must be confirmed by the leak rate
calculation performed upon the next refrigerant addition. The leaks
will be presumed to be repaired if there is no further refrigerant
addition for 12 months after the repair or if the leak inspections
required under paragraph (g) do not find any leaks in the appliance.
Repair of leaks must be documented by both an initial and a follow-up
verification test or tests.
(3) The time frames in paragraphs (d) through(f) of this section
are temporarily suspended when an appliance is mothballed. The time
will resume on the day additional refrigerant is added to the appliance
(or component of an appliance if the leaking component was isolated).
(e) Verification tests. The owner or operator must conduct both
initial and follow-up verification tests on each leak that was repaired
under paragraph (d) of this section.
(1) Initial verification test. Unless granted additional time, an
initial verification test must be performed within 30 days (or 120 days
if an industrial process shutdown is required) of an appliance
exceeding the applicable leak rate in paragraph (c) of this section. An
initial verification test must demonstrate that leaks where a repair
attempt was made are repaired.
(i) For repairs that can be completed without the need to open or
evacuate the appliance, the test must be performed after the conclusion
of the repair work and before any additional refrigerant is added to
the appliance.
(ii) For repairs that require the evacuation of the appliance or
portion of the appliance, the test must be performed before adding any
refrigerant to the appliance.
(iii) If the initial verification test indicates that the repairs
have not been successful, the owner or operator may conduct as many
additional repairs and initial verification tests as needed within the
applicable time period.
(2) Follow-up verification test. A follow-up verification test must
be performed within 10 days of the successful initial verification test
or 10 days of the appliance reaching normal operating characteristics
and conditions (if the appliance or isolated component was evacuated
for the repair(s)). Where it is unsafe to be present or otherwise
impossible to conduct a follow-up verification test when the system is
operating at normal operating characteristics and conditions, the
verification test must, where practicable, be conducted prior to the
system returning to normal operating characteristics and conditions.
(i) A follow-up verification test must demonstrate that leaks where
a repair attempt was made are repaired. If the follow-up verification
test indicates that the repairs have not been successful, the owner or
operator may conduct as many additional repairs and verification tests
as needed to bring the appliance below the leak rate within the
applicable time period and to verify the repairs.
(f) Extensions to the appliance repair deadlines. Owners or
operators are permitted more than 30 days (or 120 days if an industrial
process shutdown is required) to comply with paragraphs (d) and (e) of
this section if they meet the requirements of (f)(1) through (4) of
this section or the appliance is mothballed. The request will be
considered approved unless EPA notifies the owners or operators
otherwise.
(1) One or more of the following conditions must apply:
(i) The appliance is located in an area subject to radiological
contamination or shutting down the appliance will directly lead to
radiological contamination. Additional time is permitted to the extent
needed to conduct and finish repairs in a safe working environment.
(ii) Requirements of other applicable Federal, state, or local
regulations make a repair within 30 days (or 120 days if an industrial
process shutdown is required) impossible. Additional time is permitted
to the extent needed to comply with the pertinent regulations.
(iii) Components that must be replaced as part of the repair are
not available within 30 days (or 120 days if an industrial process
shutdown is required). Additional time is permitted up to 30 days after
receiving delivery of the necessary components, not to exceed 180 days
(or 270 days if an industrial process shutdown is required) from the
date the appliance exceeded the applicable leak rate.
(2) Repairs to leaks that the technician has identified as
significantly contributing to the exceedance of the leak rate and that
do not require additional time must be completed and verified within
the initial 30 day repair period (or 120 day repair period if an
industrial process shutdown is required);
(3) The owner or operator must document all repair efforts and the
reason for the inability to make the repair within the initial 30 day
repair period (or 120 day repair period if an industrial process
shutdown is required); and
(4) The owner or operator must request an extension from EPA at the
address specified in paragraph (m) of this section within 30 days (or
120 days if an industrial process shutdown is required) of the
appliance exceeding the applicable leak rate in paragraph (c) of this
section. Extension requests must include: Identification and address of
the facility; the name of the owner or operator of the appliance; the
leak rate; the method used to determine the leak rate and full charge;
the date the appliance exceeded the applicable leak rate; the location
of leak(s) to the extent determined to date; any repair work that has
been performed thus far, including the date that work was completed;
the reasons why more than 30 days (or 120 days if an industrial process
shutdown is required) are needed to complete the repair; and an
estimate of when the work will be completed. If the estimated
completion date is to be extended, a new estimated date of completion
and documentation of the reason for that change must be submitted to
EPA within 30 days of identifying that the completion date must be
extended. The owner or operator must keep a dated copy of this
submission.
(g) Leak Inspections. (1) The owner or operator must conduct a leak
inspection in accordance with the following schedule on any appliance
exceeding
[[Page 82358]]
the applicable leak rate in paragraph (c)(2) of this section.
(i) For commercial refrigeration and industrial process
refrigeration appliances with a full charge of 500 or more pounds, leak
inspections must be conducted once every three months until the owner
or operator can demonstrate through the leak rate calculations required
under paragraph (b) of this section that the appliance has not leaked
in excess of the applicable leak rate for four quarters in a row.
(ii) For commercial refrigeration and industrial process
refrigeration appliances with a full charge of 50 or more pounds but
less than 500 pounds, leak inspections must be conducted once per
calendar year until the owner or operator can demonstrate through the
leak rate calculations required under paragraph (b) of this section
that the appliance has not leaked in excess of the applicable leak rate
for one year.
(iii) For comfort cooling appliances and other appliances not
covered by paragraphs (g)(1)(i) and (ii) of this section, leak
inspections must be conducted once per calendar year until the owner or
operator can demonstrate through the leak rate calculations required
under paragraph (b) of this section that the appliance has not leaked
in excess of the applicable leak rate for one year.
(2) Leak inspections must be conducted by a certified technician
using method(s) determined by the technician to be appropriate for that
appliance.
(3) All visible and accessible components of an appliance must be
inspected, with the following exceptions:
(i) Where components are insulated, under ice that forms on the
outside of equipment, underground, behind walls, or are otherwise
inaccessible;
(ii) Where personnel must be elevated more than two meters above a
support surface; or
(iii) Where components are unsafe to inspect, as determined by site
personnel.
(4) Quarterly or annual leak inspections are not required on
appliances, or portions of appliances, continuously monitored by an
automatic leak detection system that is audited or calibrated annually.
An automatic leak detection system may directly detect refrigerant in
air, monitor its surrounding in a manner other than detecting
refrigerant concentrations in air, or monitor conditions of the
appliance.
(i) For systems that directly detect the presence of a refrigerant
in air, the system must:
(A) Only be used to monitor components located inside an enclosed
building or structure;
(B) Have sensors or intakes placed so that they will continuously
monitor the refrigerant concentrations in air in proximity to the
compressor, evaporator, condenser, and other areas with a high
potential for a refrigerant leak;
(C) Accurately detect a concentration level of 10 parts per million
of vapor of the specific refrigerant or refrigerants used in the
refrigeration appliance(s); and
(D) Alert the owner or operator when a refrigerant concentration of
100 parts per million of vapor of the specific refrigerant or
refrigerants used in the refrigeration appliance(s) is reached.
(ii) For a system that monitors its surrounding in a manner other
than detecting refrigerant concentrations in air or monitor conditions
of the appliance, the system must automatically alert the owner or
operator when measurements indicate a loss of 50 pounds of refrigerant
or 10 percent of the full charge, whichever is less.
(iii) When automatic leak detection equipment is only being used to
monitor portions of an appliance, the remainder of the appliance
continues to be subject to any applicable leak inspection requirements.
(h) Retrofit or retirement plans. (1) The owner or operator must
create a retrofit or retirement plan within 30 days of:
(i) an appliance leaking above the applicable leak rate in
paragraph (c) of this section if the owner or operator intends to
retrofit or retire rather than repair the leak;
(ii) an appliance leaking above the applicable leak rate in
paragraph (c) of this section if the owner or operator fails to take
any action to identify or repair the leak; or
(iii) an appliance continues to leak above the applicable leak rate
after having conducted the required repairs and verification tests
under paragraphs (d) and (e) of this section.
(2) A retrofit or retirement plan must, at a minimum, contain the
following information:
(i) Identification and location of the appliance;
(ii) Type and full charge of the refrigerant used in the appliance;
(iii) Type and full charge of the refrigerant to which the
appliance will be converted, if retrofitted;
(iv) Itemized procedure for converting the appliance to a different
refrigerant, including changes required for compatibility with the new
substitute, if retrofitted;
(v) Plan for the disposition of recovered refrigerant;
(vi) Plan for the disposition of the appliance, if retired; and
(vii) A schedule, not to exceed one-year, for completion of the
appliance retrofit or retirement.
(3) The retrofit or retirement plan must be signed by an authorized
company official, dated, accessible at the site of the appliance in
paper copy or electronic format, and available for EPA inspection upon
request.
(4) All identified leaks must be repaired as part of any retrofit
under such a plan.
(5)(i) Unless granted additional time, all work performed in
accordance with the plan must be finished within one year of the plan's
date (not to exceed 13 months from when the plan was required in
paragraph (h)(1) of this section).
(ii) The owner or operator may request that EPA relieve it of the
obligation to retrofit or retire an appliance if the owner or operator
can establish within 180 days of the plan's date that the appliance no
longer exceeds the applicable leak rate and if the owner or operator
agrees in writing to repair all identified leaks within one year of the
plan's date consistent with paragraph (h)(4) and (h)(5)(i) of this
section. The owner or operator must submit to EPA the retrofit or
retirement plan as well as the following information: The date that the
requirement to develop a retrofit or retirement plan was triggered; the
leak rate; the method used to determine the leak rate and full charge;
the location of the leak(s) identified in the leak inspection; a
description of repair work that has been completed; a description of
repair work that has not been completed; a description of why the
repair was not conducted within the time frames required under
paragraphs (d) and (f) of this section; and a statement signed by an
authorized official that all identified leaks will be repaired and an
estimate of when those repairs will be completed (not to exceed one
year from date of the plan). The request will be considered approved
unless EPA notifies the owners or operators within 60 days of receipt
of the request that it is not approved.
(i) Extensions to the one-year retrofit or retirement schedule.
Owners or operators may request more than one year to comply with
paragraph (h) of this section if they meet the requirements of this
paragraph. The request will be considered approved unless EPA notifies
the owners or
[[Page 82359]]
operators within 60 days of receipt of the request that it is not
approved. The request must be submitted to EPA at the address specified
in Sec. 82.157(m) within seven months of discovering the appliance
exceeded the applicable leak rate. The request must include the
identification of the appliance; name of the owner or operator; the
leak rate; the method used to determine the leak rate and full charge;
the date the appliance exceeded the applicable leak rate; the location
of leaks(s) to the extent determined to date; any repair work that has
been finished thus far, including the date that work was finished; a
plan to finish the retrofit or retirement of the appliance; the reasons
why more than one year is necessary to retrofit or retire the
appliance; the date of notification to EPA; and an estimate of when
retrofit or retirement work will be finished. A dated copy of the
request must be available on-site in either electronic or paper copy.
If the estimated completion date is to be revised, a new estimated date
of completion and documentation of the reason for that change must be
submitted to EPA at the address specified in Sec. 82.157(m) within 30
days. Additionally, the time frames in paragraphs (h) and (i) of this
section are temporarily suspended when an appliance is mothballed. The
time will resume running on the day additional refrigerant is added to
the appliance (or component of an appliance if the leaking component
was isolated).
(1) Extensions available to any appliance. Owners or operators of
commercial refrigeration, industrial process refrigeration, comfort-
cooling, or other equipment are automatically allowed 18 months to
retire an appliance if the replacement appliance uses a substitute
refrigerant exempted under Sec. 82.154(a).
(2) Extensions available to industrial process refrigeration.
Owners or operators of industrial process refrigeration equipment may
request additional time beyond the one-year period in paragraph (h) of
this section to finish the retrofit or retirement under the following
circumstances.
(i) Requirements of other applicable Federal, state, or local
regulations make a retrofit or retirement within one year impossible.
Additional time is permitted to the extent needed to comply with the
pertinent regulations;
(ii) The new or the retrofitted equipment is custom-built as
defined in this subpart and the supplier of the appliance or one of its
components has quoted a delivery time of more than 30 weeks from when
the order is placed. The appliance or appliance components must be
installed within 120 days after receiving delivery of the necessary
parts; or
(iii) After receiving an extension under paragraph (i)(2)(ii) of
this section, owners or operators may request additional time if
necessary to finish the retrofit or retirement of equipment. The
request must be submitted to EPA before the end of the ninth month of
the initial extension and must include the same information submitted
for that extension, with any necessary revisions. A dated copy of the
request must be available on-site in either electronic or paper copy.
The request will be considered approved unless EPA notifies the owners
or operators within 60 days of receipt of the request that it is not
approved.
(3) Extensions available to Federally owned equipment. Owners or
operators of federally owned commercial or comfort-cooling equipment
may request an additional year beyond the one-year period in paragraph
(h) of this section to finish the retrofit or retirement under the
following circumstances:
(i) A delivery time of more than 30 weeks from the beginning of the
official procurement process is quoted due to complications presented
by the Federal agency appropriations and/or procurement process;
(ii) The appliance is located in an area subject to radiological
contamination and creating a safe working environment will require more
than 30 weeks; or
(iii) After receiving a one-year extension under paragraphs
(i)(3)(i) or (ii) of this section, additional time may be requested if
necessary to finish the retrofit or retirement of equipment. The
request must be submitted to EPA before the end of the ninth month of
the one-year extension and must include the same information submitted
for that one-year extension, with any necessary revisions. A dated copy
of the request must be available on-site in either electronic or paper
copy. The request will be considered approved unless EPA notifies the
owners or operators within 60 days of receipt of the request that it is
not approved.
(j) Chronically leaking appliances. Owners or operators of
appliances containing 50 pounds or more of refrigerant that leak 125
percent or more of the full charge in a calendar year must submit a
report to EPA at the address in paragraph (m) of this section. This
report must be submitted by March 1 of the subsequent year and describe
efforts to identify leaks and repair the appliance.
(k) Purged refrigerant. In calculating annual leak rates, purged
refrigerant that is destroyed at a verifiable destruction efficiency of
98 percent or greater will not be counted toward the leak rate.
(l) Recordkeeping. All records identified in this paragraph must be
kept for at least three years in electronic or paper format, unless
otherwise specified.
(1) Owners or operators must determine the full charge of all
appliances with 50 or more pounds of refrigerant and maintain the
following information for each appliance until three years after the
appliance is retired:
(i) The identification of the owner or operator of the appliance;
(ii) The address where the appliance is located;
(iii) The full charge of the appliance and the method for how the
full charge was determined;
(iv) If using method 4 (using an established range) for determining
full charge, records must include the range for the full charge of the
appliance, its midpoint, and how the range was determined;
(v) Any revisions of the full charge, how they were determined, and
the dates such revisions occurred.
(2) Owners or operators must maintain a record including the
following information for each time an appliance with a full charge of
50 or more pounds is maintained, serviced, repaired, or disposed of,
when applicable. If the maintenance, service, repair, or disposal is
done by someone other than the owner or operator, that person must
provide a record containing the following information, with the
exception of (l)(2)(vii) and (viii) of this section, to the owner or
operator:
(i) The identity and location of the appliance;
(ii) The date of the maintenance, service, repair, or disposal
performed;
(iii) The part(s) of the appliance being maintained, serviced,
repaired, or disposed;
(iv) The type of maintenance, service, repair, or disposal
performed for each part;
(v) The name of the person performing the maintenance, service,
repair, or disposal;
(vi) The amount and type of refrigerant added to, or in the case of
disposal removed from, the appliance;
(vii) The full charge of the appliance; and
(viii) The leak rate and the method used to determine the leak rate
(not applicable when disposing of the appliance, following a retrofit,
installing a new appliance, or if the refrigerant addition qualifies as
a seasonal variance).
(3) Owners or operators must keep records of leak inspections that
include
[[Page 82360]]
the date of inspection, the method(s) used to conduct the leak
inspection, a list of the location of each leak that was identified,
and a certification that all visible and accessible parts of the
appliance were inspected. Technicians conducting leak inspections must,
upon conclusion of that service, provide the owner or operator of the
appliance with documentation that meets these requirements.
(4) If using an automatic leak detection system, the owner or
operator must maintain records regarding the installation and the
annual audit and calibration of the system, a record of each date the
monitoring system identified a leak, and the location of the leak.
(5) Owners or operators must maintain records of the dates and
results of all initial and follow-up verification tests. Records must
include the location of the appliance, the date(s) of the verification
tests, the location(s) of all repaired leaks that were tested, the
type(s) of verification test(s) used, and the results of those tests.
Technicians conducting initial or follow-up verification tests must,
upon conclusion of that service, provide the owner or operator of the
appliance with documentation that meets these requirements.
(6) Owners or operators must maintain retrofit or retirement plans
developed in accordance with paragraph (h) of this section.
(7) Owners or operators must maintain retrofit and/or extension
requests submitted to EPA in accordance with paragraph (i) of this
section.
(8) Owners or operators that suspend the deadlines in this section
by mothballing an appliance must keep records documenting when the
appliance was mothballed and when additional refrigerant was added to
the appliance (or isolated component).
(9) Owners or operators who exclude purged refrigerants that are
destroyed from annual leak rate calculations must maintain records to
support the amount of refrigerant claimed as sent for destruction.
Records must be based on a monitoring strategy that provides reliable
data to demonstrate that the amount of refrigerant claimed to have been
destroyed is not greater than the amount of refrigerant actually purged
and destroyed and that the 98 percent or greater destruction efficiency
is met. Records must include flow rate, quantity or concentration of
the refrigerant in the vent stream, and periods of purge flow. Records
must include:
(i) The identification of the facility and a contact person,
including the address and telephone number;
(ii) A description of the appliance, focusing on aspects relevant
to the purging of refrigerant and subsequent destruction;
(iii) A description of the methods used to determine the quantity
of refrigerant sent for destruction and type of records that are being
kept by the owners or operators where the appliance is located;
(iv) The frequency of monitoring and data-recording; and
(v) A description of the control device, and its destruction
efficiency.
(10) Owners or operators that exclude additions of refrigerant due
to seasonal variance from their leak rate calculation must maintain
records stating that they are using the seasonal variance flexibility
and documenting the amount added and removed under Sec. 82.157(l)(2).
(11) Owners or operators that submit reports to EPA in accordance
with paragraph (m) of this section must maintain copies of the
submitted reports and any responses from EPA.
(m) Reporting. All notifications must be submitted electronically
to 608reports@epa.gov unless the notification contains confidential
business information. If the notification contains confidential
business information, the information should be submitted to: Section
608 Program Manager; Stratospheric Protection Division; Mail Code:
6205T; U.S. Environmental Protection Agency; 1200 Pennsylvania Avenue
NW., Washington, DC 20460.
(1) Owners or operators must notify EPA at this address in
accordance with paragraph (f) of this section when seeking an extension
of time to complete repairs.
(2) Owners or operators must notify EPA at this address in
accordance with paragraph (h)(5)(ii) of this section when seeking
relief from the obligation to retrofit or retire an appliance.
(3) Owners or operators must notify EPA at this address in
accordance with paragraph (i) of this section when seeking an extension
of time to complete the retrofit or retirement of an appliance.
(4) Owners or operators must notify EPA at this address in
accordance with paragraph (j) of this section for any appliance that
leaks 125 percent or more of the full charge in a calendar year.
(5) When excluding purged refrigerants that are destroyed from
annual leak rate calculations, owners or operators must notify EPA at
this address within 60 days after the first time the exclusion is used
by the facility where the appliance is located. The report must include
the information included in paragraph (l)(9) of this section.
0
8. Revise Sec. 82.158 to read as follows:
Sec. 82.158 Standards for recovery and/or recycling equipment.
Starting January 1, 2017, this section applies to recovery and/or
recycling equipment for use during the maintenance, service, repair, or
disposal of appliances containing any class I or class II refrigerant
or any non-exempt substitute refrigerant.
(a) No person may manufacture or import recovery and/or recycling
equipment for use during the maintenance, service, repair, or disposal
of appliances unless the equipment is certified in accordance with this
section.
(b) No person may alter the design of certified refrigerant
recovery and/or recycling equipment in a way that would affect the
equipment's ability to meet the certification standards in this section
without resubmitting the altered design for certification testing.
Until it is tested and shown to meet the certification standards in
this section, equipment so altered will be considered uncertified.
(c) Recovery and/or recycling equipment manufactured or imported
before November 15, 1993, intended for use during the maintenance,
service, repair, or disposal of appliances (except small appliances,
MVACs, and MVAC-like appliances) will be considered certified if it is
capable of achieving the level of evacuation specified in Table 2 of
this section when tested using a properly calibrated pressure gauge.
(d) Manufacturers and importers of recovery and/or recycling
equipment must have such equipment certified by an approved equipment
testing organization as follows:
(1) Recovery and/or recycling equipment manufactured or imported on
or after November 15, 1993, and before September 22, 2003, intended for
use during the maintenance, service, repair, or disposal of appliances
(except small appliances, MVACs, and MVAC-like appliances) must be
certified by an approved equipment testing organization as being
capable of achieving the level of evacuation specified in Table 2 of
this section under the conditions of appendix B1 of this subpart (based
upon the ARI Standard 740-1993, Performance of Refrigerant Recovery,
Recycling and/or Reclaim Equipment).
(2) Recovery and/or recycling equipment manufactured or imported on
or after September 22, 2003, and
[[Page 82361]]
before January 1, 2017, intended for use during the maintenance,
service, repair, or disposal of appliances (except small appliances,
MVACs, and MVAC-like appliances) must be certified by an approved
equipment testing organization as being capable of achieving the level
of evacuation specified in Table 2 of this section under the conditions
of appendix B2 of this subpart (based upon the ARI Standard 740-1995,
Performance of Refrigerant Recovery, Recycling and/or Reclaim
Equipment).
(3) Recovery and/or recycling equipment manufactured or imported on
or after January 1, 2017, intended for use during the maintenance,
service, repair, or disposal of appliances (except small appliances,
MVACs, and MVAC-like appliances) must be certified by an approved
equipment testing organization as being capable of achieving the level
of evacuation specified in Table 2 of this section under the conditions
of appendix B3 (for non-flammable refrigerants) based upon AHRI
Standard 740-2016 or appendix B4 (for flammable refrigerants) of this
subpart.
Table 2--Levels of Evacuation Which Must Be Achieved by Recovery and/or Recycling Equipment
[Except for small appliances, MVACs, and MVAC-like appliances.]
----------------------------------------------------------------------------------------------------------------
Inches of Hg vacuum (relative to standard atmospheric pressure of 29.9
Type of appliance with which recovery inches Hg)
and/or recycling machine is intended -------------------------------------------------------------------------
to be used Manufactured or imported before Manufactured or imported on or
November 15, 1993 after November 15, 1993
----------------------------------------------------------------------------------------------------------------
HCFC-22 appliances, or isolated 0.................................. 0.
component of such appliances, with a
full charge of less than 200 pounds
of refrigerant.
HCFC-22 appliances, or isolated 4.................................. 10.
component of such appliances, with a
full charge of 200 pounds or more of
refrigerant.
Very high-pressure appliances......... 0.................................. 0.
Other high-pressure appliances, or 4.................................. 10.
isolated component of such
appliances, with a full charge of
less than 200 pounds of refrigerant.
Other high-pressure appliances, or 4.................................. 15.
isolated component of such
appliances, with a full charge of 200
pounds or more of refrigerant.
Medium-pressure appliances, or 4.................................. 10.
isolated component of such
appliances, with a full charge of
less than 200 pounds of refrigerant.
Medium-pressure appliances, or 4.................................. 15.
isolated component of such
appliances, with a full charge of 200
pounds or more of refrigerant.
Low-pressure appliances............... 25 mm Hg absolute.................. 25 mm Hg absolute.
----------------------------------------------------------------------------------------------------------------
(4) Recovery and/or recycling equipment whose recovery efficiency
cannot be tested according to the procedures in appendix B1, B2, B3, or
B4 of this subpart as applicable may be certified if an approved third-
party testing organization adopts and performs a test that
demonstrates, to the satisfaction of the Administrator, that the
recovery efficiency of that equipment is equal to or better than that
of equipment that:
(i) Is intended for use with the same type of appliance; and
(ii) Achieves the level of evacuation in Table 2. The
manufacturer's instructions must specify how to achieve the required
recovery efficiency, and the equipment must be tested when used
according to these instructions.
(5) The equipment must meet the minimum requirements for
certification under appendix B1, B2, B3, or B4 of this subpart as
applicable.
(6) If the equipment is equipped with a noncondensables purge
device, the equipment must not release more than 3 percent of the
quantity of refrigerant being recycled through noncondensables purging
under the conditions of appendix B1, B2, B3, or B4 of this subpart as
applicable.
(7) The equipment must be equipped with low-loss fittings on all
hoses.
(8) The equipment must have its liquid recovery rate and its vapor
recovery rate measured under the conditions of appendix B1, B2, B3, or
B4 as applicable, unless the equipment has no inherent liquid or vapor
recovery rate.
(e) Small Appliances. Equipment used during the maintenance,
service, repair, or disposal of small appliances must be certified by
an approved equipment testing organization to be capable of recovering
90 percent of the refrigerant in the test stand when the compressor of
the test stand is operational and 80 percent of the refrigerant when
the compressor of the test stand is not operational, when used in
accordance with the manufacturer's instructions under the conditions of
appendix C, Method for Testing Recovery Devices for Use with Small
Appliances.
(1) Equipment manufactured or imported before November 15, 1993,
will be considered certified if it is capable of either recovering 80
percent of the refrigerant in the system, whether or not the compressor
of the test stand is operational, or achieving a four-inch vacuum when
tested using a properly calibrated pressure gauge.
(2) Equipment manufactured or imported on or after November 15,
1993, may also be certified if it is capable of achieving a four-inch
vacuum under the conditions of appendix B1 of this subpart, based upon
ARI Standard 740-1993.
(3) Equipment manufactured or imported on or after September 22,
2003, and before January 1, 2017, may also be certified if it is
capable of achieving a four-inch vacuum under the conditions of
appendix B2 of this subpart, based upon ARI Standard 740-1995.
(4) Equipment manufactured or imported on or after January 1, 2017,
may also be certified if it is capable of achieving a four-inch vacuum
under the conditions of appendix B3 of this subpart (for non-flammable
refrigerants), based upon AHRI Standard 740-2016 or appendix B4 of this
subpart (for flammable refrigerants), based upon both AHRI Standard
740-2016 and UL 1963, Supplement SB, Requirements for Refrigerant
Recovery/Recycling Equipment Intended for Use with a Flammable
Refrigerant, Fourth Edition, June 1, 2011.
(5) Equipment used to evacuate any class I or class II refrigerant
or any non-exempt substitute refrigerant from small
[[Page 82362]]
appliances before they are disposed of may also be certified if it is
capable of achieving a four-inch vacuum when tested using a properly
calibrated pressure gauge.
(f) MVAC-like appliances. (1) Manufacturers and importers of
recovery and/or recycling equipment intended for use during the
maintenance, service, repair, or disposal of MVAC-like appliances must
certify such equipment in accordance with subpart B of this part.
(2) Equipment manufactured or imported before November 15, 1993,
intended for use during the maintenance, service, or repair of MVAC-
like appliances must be capable of reducing the system pressure to 102
mm of mercury vacuum under the conditions of appendix A of subpart B of
this part.
(g) MVACs. Manufacturers and importers of recovery and/or recycling
equipment intended for use during the maintenance, service, repair, or
disposal of MVACs must certify such equipment in accordance with
subpart B of this part.
(h) Labeling. (1) Manufacturers and importers of equipment
certified under paragraphs (d) and (e) of this section must place a
label on each piece of equipment stating the following:
THIS EQUIPMENT HAS BEEN CERTIFIED BY [APPROVED EQUIPMENT TESTING
ORGANIZATION] TO MEET EPA's MINIMUM REQUIREMENTS FOR RECYCLING OR
RECOVERY EQUIPMENT INTENDED FOR USE WITH [APPROPRIATE CATEGORY OF
APPLIANCE].
(2) The label must also show the date of manufacture and the serial
number (if applicable) of the equipment. The label must be affixed in a
readily visible or accessible location, be made of a material expected
to last the lifetime of the equipment, present required information in
a way that it is likely to remain legible for the lifetime of the
equipment, and be affixed in such a way that it cannot be removed from
the equipment without damage to the label.
(i) Retesting. At least once every three years, manufacturers or
importers of certified recovery and/or recycling equipment intended for
use during the maintenance, service, or repair of appliances (except
MVACs or MVAC-like appliances) or during the disposal of appliances
(except small appliances, MVACs, and MVAC-like appliances) must have
approved equipment testing organizations conduct either:
(1) Retests of certified recovery and/or recycling equipment in
accordance with paragraphs (d) and (e) of this section; or
(2) Inspections of recovery and/or recycling equipment at
manufacturing facilities to ensure that each equipment model line that
has been certified under this section continues to meet the
certification criteria.
(j) Revocation. An equipment model line that has been certified
under this section may have its certification revoked if it is
subsequently determined to fail to meet the certification criteria. In
such cases, the Administrator must give notice to the manufacturer or
importer setting forth the basis for the determination.
(k) Equipment that is advertised or marketed as ``recycling
equipment'' must be capable of recycling the standard contaminated
refrigerant sample of appendix B2, B3, or B4 of this subpart (as
applicable) to the levels in the following table when tested under the
conditions of appendix B2, B3 or B4 of this subpart:
Maximum Levels of Contaminants Permissible in Refrigerant Processed Through Equipment Advertised as
``Recycling'' Equipment
----------------------------------------------------------------------------------------------------------------
Low-pressure (R-11, R-
Contaminants 123, R-113) systems R-12 systems All other systems
----------------------------------------------------------------------------------------------------------------
Acid Content (by wt.)............. 1.0 PPM.............. 1.0 PPM............. 1.0 PPM.
Moisture (by wt.)................. 20 PPM............... 10 PPM.............. 20 PPM.
Noncondensable Gas (by vol.) N/A.................. 2.0%................ 2.0%.
High Boiling Residues (by vol.) 1.0%................. 0.02%............... 0.02%.
Chlorides by Silver Nitrate Test.. No turbidity......... No turbidity........ No turbidity.
Particulates...................... Visually clean....... Visually clean...... Visually clean.
----------------------------------------------------------------------------------------------------------------
0
9. Revise Sec. 82.160 to read as follows:
Sec. 82.160 Approved equipment testing organizations.
(a) Any equipment testing organization may apply for approval by
the Administrator to certify equipment under the standards in Sec.
82.158 and appendices B2, B3, B4, or C of this subpart. Applications
must be sent to 608reports@epa.gov, or if containing confidential
business information, mailed to: Section 608 Program Manager,
Stratospheric Protection Division, Mail Code: 6205T, U.S. Environmental
Protection Agency, 1200 Pennsylvania Avenue NW., Washington, DC 20460.
(b) Applications for approval must include:
(1) A list of equipment present at the organization that will be
used for equipment testing.
(2) Verification of the organization's expertise in equipment
testing and the technical experience of the organization's personnel.
(3) Verification of the organization's knowledge of the standards
and recordkeeping and reporting requirements of this subpart.
(4) A description of the organization's program for verifying the
performance of certified recovery and/or recycling equipment
manufactured over the long term, specifying whether retests of
equipment or inspections of equipment at manufacturing facilities will
be used.
(5) Verification that the organization has no conflict of interest
and receives no direct or indirect financial benefit from the outcome
of certification testing.
(6) Agreement to allow the Administrator access to records and
personnel to verify the information contained in the application.
(c) Organizations may not certify equipment before receiving
approval from EPA. If approval is denied under this section, the
Administrator must give written notice to the organization setting
forth the basis for the determination.
(d) If an approved testing organization conducts certification
tests in a way not consistent with the representations made in its
application or with the provisions of this subpart, the Administrator
may revoke approval in accordance with Sec. 82.169. In such cases, the
Administrator must give notice to the organization setting forth the
basis for the determination.
(e) Recordkeeping and reporting. (1) Approved equipment testing
organizations must maintain records of
[[Page 82363]]
equipment testing and performance and a list of equipment that meets
EPA requirements. This list must include the name of the manufacturer
and the name and/or serial number of the model line. Approved equipment
testing organizations must publish online a list of all certified
equipment that includes the information specified above and update the
list annually.
(2) Approved equipment testing organizations must notify EPA at
608reports@epa.gov if retests of equipment or inspections of
manufacturing facilities conducted under to Sec. 82.158(i) show that a
previously certified model line fails to meet EPA requirements. Such
notification must be received within thirty days of the retest or
inspection.
(3) All records must be maintained for three years after the
equipment is no longer offered for sale. Online lists must contain
certified equipment until three years after that equipment is no longer
offered for sale.
0
10. Revise Sec. 82.161 to read as follows:
Sec. 82.161 Technician certification.
Until January 1, 2018, this section applies only to technicians and
organizations certifying technicians that maintain, service, or repair
appliances containing class I or class II refrigerants. Starting on
January 1, 2018, this section applies to technicians and organizations
certifying technicians that maintain, service, or repair appliances
containing any class I or class II refrigerant or any non-exempt
substitute refrigerant.
(a) Certification Requirements. (1) Any person who could be
reasonably expected to violate the integrity of the refrigerant circuit
during the maintenance, service, repair, or disposal of appliances (as
follows in this paragraph) containing a class I or class II refrigerant
or a non-exempt substitute refrigerant must pass a certification exam
offered by an approved technician certification program.
(i) Persons who maintain, service, or repair small appliances must
be certified as Type I technicians.
(ii) Persons who maintain, service, repair, or dispose of medium-,
high-, or very high-pressure appliances (except small appliances,
MVACs, and MVAC-like appliances) must be certified as Type II
technicians.
(iii) Persons who maintain, service, repair, or dispose of low-
pressure appliances must be certified as Type III technicians.
(iv) Persons who maintain, service, repair, or dispose of all
appliances described in paragraph (a)(1)(i) through (iii) of this
section must be certified as Universal technicians.
(v) Technicians who maintain, service, or repair MVAC-like
appliances must either be certified as Type II technicians or be
certified in accordance with 40 CFR part 82, subpart B.
(vi) Persons who maintain, service, or repair MVAC appliances for
consideration must be certified in accordance with 40 CFR part 82,
subpart B.
(vii) Persons who dispose of small appliances, MVACs, and MVAC-like
appliances are not required to be certified.
(2) Apprentices are exempt from the requirement in paragraph (a)(1)
of this section provided the apprentice is closely and continually
supervised by a certified technician while performing any maintenance,
service, repair, or disposal that could reasonably be expected to
release refrigerant from an appliance into the environment, except
those substitute refrigerants exempted under paragraph (a)(1) of this
section. The supervising certified technician and the apprentice have
the responsibility to ensure that the apprentice complies with this
subpart.
(3) The Administrator may require technicians to demonstrate at
their place of business their ability to perform proper procedures for
recovering and/or recycling refrigerant, except those substitute
refrigerants exempted under paragraph (a)(1) of this section. Failure
to demonstrate or failure to properly use the equipment may result in
revocation or suspension of the certificate. Failure to abide by any of
the provisions of this subpart may also result in revocation or
suspension of the certificate. If a technician's certificate is
revoked, the technician would need to recertify before maintaining,
servicing, repairing, or disposing of any appliances.
(4) (i) Technicians certified under this section must keep a copy
of their certificate at their place of business.
(ii) Technicians must maintain a copy of their certificate until
three years after no longer operating as a technician.
(5) Recertification. The Administrator reserves the right to
specify a requirement for technician recertification at some future
date, if necessary, by placing a notice in the Federal Register.
(b) Requirements for Technician Certification Programs. (1) No
technician training or testing program may issue certificates under
this section unless the program complies with all the standards of this
section and appendix D, and has been granted approval by the
Administrator.
(2) Program Approval. Persons may seek approval of any technician
certification program (program), in accordance with this paragraph, by
submitting to the Administrator at the address in Sec. 82.160(a)
verification that the program meets all the standards listed in
appendix D of this subpart. The Administrator reserves the right to
consider other relevant factors to ensure the effectiveness of
certification programs. If approval is denied under this section, the
Administrator must give written notice to the program setting forth the
basis for the determination.
(3) Alternative Examinations. Programs are encouraged to make
provisions for non-English speaking technicians by providing tests in
other languages or allowing the use of a translator when taking the
test. A test may be administered orally to any person who makes this
request, in writing, to the program at least 30 days before the
scheduled date for the examination. The written request must explain
why the request is being made.
(4) Proof of Certification. Programs certifying technicians must
provide technicians with identification cards in accordance with
section (f) of appendix D of this subpart.
(5) Programs certifying technicians must maintain records in
accordance with section (g) of appendix D of this subpart.
(6) Starting January 1, 2018, programs certifying technicians,
excluding Federally-run programs, must publish online a list of all
technicians they have certified on or after January 1, 2017. Certifying
organizations must update these lists at least annually.
(i) The list must include the first name, middle initial, and last
name of the certified technician, the technician's city of residence
when taking the test, the type(s) of certification received, and the
date each certification was received.
(ii) Programs certifying technicians must provide notice to
technicians that such information will be published online in
compliance with any other Federal, state or local regulations, and
allow technicians to opt out of being included in such lists.
(7) If an approved program violates any of the above requirements,
the Administrator may revoke approval in accordance with Sec. 82.169.
In such cases, the Administrator must give notice to the organization
setting forth the basis for the determination.
(c) Test Subject Material. A bank of test questions developed by
the Administrator consists of groups, including a core group and
technical groups. The Administrator will release this bank of questions
only to approved technician certification programs. Each test for each
type of certification must
[[Page 82364]]
include at least 25 questions drawn from the core group and at least 25
questions drawn from each relevant technical group. These questions
must address the subject areas in appendix D of this subpart.
Sec. 82.162 [Removed and Reserved]
0
11. Remove and reserve Sec. 82.162.
0
12. Revise Sec. 82.164 to read as follows:
Sec. 82.164 Reclaimer certification.
(a) All persons reclaiming used class I or II refrigerant or non-
exempt substitute refrigerant for sale to a new owner must meet the
following requirements:
(1) Reclaim such refrigerant to all the specifications in appendix
A of this subpart (based on AHRI Standard 700-2016, Specifications for
Refrigerants) that are applicable to that refrigerant;
(2) Verify that each batch of such refrigerant reclaimed meets
these specifications using the analytical methodology prescribed in
appendix A of this subpart, which includes the primary methodologies
included in appendix A of AHRI Standard 700-2016;
(3) Release no more than 1.5 percent of the refrigerant during the
reclamation process;
(4) Dispose of wastes from the reclamation process in accordance
with all applicable laws and regulations; and
(5) Maintain records and submit reports in accordance with
paragraph (d) of this section.
(b) The owner or a responsible officer reclaiming used refrigerant
for sale to a new owner, except for persons who properly certified
under this section before May 11, 2004, must certify to the
Administrator at the address in Sec. 82.160(a) that they will meet the
requirements in paragraph (a) of this section. The certification must
include the name and address of the reclaimer and a list of equipment
used to reclaim the refrigerant to the required standard, and to
analyze the refrigerant to ensure it meets these specifications.
(c) Certificates are not transferable. In the event of a change in
ownership of an entity which reclaims refrigerant, the new owner of the
entity must certify with the Administrator within 30 days of the change
that they will meet the reclaimer certification requirements. In the
event of a change in business management, location, or contact
information, the owner of the entity must notify EPA within 30 days of
the change at the address in Sec. 82.160(a).
(d) Recordkeeping and reporting. (1) Reclaimers must maintain
records, by batch, of the results of the analysis conducted to verify
that reclaimed refrigerant meets the necessary specifications in
paragraph (a)(2) of this section.
(2) Reclaimers must maintain records of the names and addresses of
persons sending them material for reclamation and the quantity of the
material (the combined mass of refrigerant and contaminants) by
refrigerant type sent to them for reclamation. Such records must be
maintained on a transactional basis for three years.
(3) Reclaimers must report to the Administrator annually by
February 1 of the next calendar year the total annual quantity of
material (the combined mass of refrigerant and contaminants) by
refrigerant type sent to them for reclamation, the total annual mass of
each refrigerant reclaimed, and the total annual mass of waste
products.
(e) Failure to abide by any of the provisions of this subpart may
result in revocation or suspension of the certification of the
reclaimer in accordance with Sec. 82.169. In such cases, the
Administrator must give notice to the organization setting forth the
basis for the determination.
0
13. Amend Sec. 82.166 by:
0
a. Revising the section heading;
0
b. Adding the introductory paragraph;
0
c. Removing and reserving paragraphs (a) through (i), and (l); and
0
d. Revising paragraph (m) and the introductory text of paragraph (q).
Revisions and addition to read as follows:
Sec. 82.166 Reporting and recordkeeping requirements for leak
repair.
This section contains leak repair reporting and recordkeeping
requirements that apply to owners and operators of appliances
containing 50 or more pounds of class I or class II refrigerants until
January 1, 2019. Starting January 1, 2019, the recordkeeping and
reporting requirements in the leak repair provisions in Sec. 82.157(l)
and (m) apply to owners and operators of appliances containing 50 or
more pounds of class I or class II refrigerants or non-exempt
substitutes.
(a)-(i) [Reserved]
* * * * *
(l) [Reserved]
(m) All records required to be maintained pursuant to this section
must be kept for a minimum of three years unless otherwise indicated.
* * * * *
(q) Owners or operators choosing to determine the full charge as
defined in Sec. 82.156(j) of an affected appliance by using an
established range or using that methodology in combination with other
methods for determining the full charge as defined in Sec. 82.156(j)
must maintain the following information:
* * * * *
0
14. Add Sec. 82.168 to read as follows:
Sec. 82.168 Incorporation by Reference.
(a) Certain material is incorporated by reference into this subpart
part with the approval of the Director of the Federal Register under 5
U.S.C. 552(a) and 1 CFR part 51. You can obtain the material from the
sources listed below. You may inspect a copy of the approved material
at U.S. EPA's Air and Radiation Docket; EPA West Building, Room 3334,
1301 Constitution Ave. NW., Washington, DC, or at the National Archives
and Records Administration (NARA). For information on the availability
of this material at NARA, call (202) 741-6030 or go to https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(b) Air-Conditioning, Heating, and Refrigeration Institute (AHRI),
2111 Wilson Boulevard, Suite 500, Arlington, VA 22201, www.ahrinet.org.
(1) AHRI Standard 110-2016, 2016 Standard for Air-Conditioning,
Heating and Refrigerating Equipment Nameplate Voltages, copyright 2016,
into Appendix B3 to subpart F.
(2) 2008 Appendix C to AHRI Standard 700-2014, 2008 Appendix C for
Analytical Procedures for AHRI Standard 700-2014--Normative, copyright
2008, into Appendix A to subpart F.
(3) 2008 Appendix D to AHRI Standard 700-2014, 2012 Appendix D for
Gas Chromatograms for AHRI Standard 700-2014--Informative, copyright
2012, into Appendix A to subpart F.
(c) American Society of Heating, Refrigerating and Air-Conditioning
Engineers, Inc., (ASHRAE), 1791 Tullie Circle NE., Atlanta, GA 30329,
U.S.A.
(1) ANSI/ASHRAE Standard 63.2-1996 (RA 2010), Method of Testing
Liquid-Line Filter Drier Filtration Capability, Reaffirmed June 26,
2010, into Appendix B3 to subpart F.
(d) ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West
Conshohocken, PA 19428-2959, www.astm.org.
(1) ASTM D1296-01 (Reapproved 2012), Standard Test Method for Odor
of Volatile Solvents and Diluents, approved July 1, 2012, into Appendix
A to subpart F.
(2) [Reserved]
(e) Gas Processors Association, 6526 East 60th Street, Tulsa,
Oklahoma 74145.
[[Page 82365]]
(1) GPA Standard STD-2177-13, Analysis of Natural Gas Liquid
Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography,
Revised, copyright 2013, into Appendix A to subpart F.
(2) [Reserved]
(f) General Services Administration, 301 7th St. SW., Washington,
DC 20410.
(1) BB-F-1421B, Federal Specification for ``Fluorocarbon
Refrigerants,'' dated March 5, 1982, IBR approved for Appendix A to
subpart F.
(2) [Reserved]
(g) International Electrotechnical Commission (IEC), 3, rue de
Varemb[eacute], P.O. Box 131. CH-1211 Geneva 20--Switzerland, 41 22 919
02 11, https://www.iec.ch.
(1) IEC 60038, IEC Standard Voltages, Edition 7.0, 2009-06, into
Appendix B3 to subpart F.
(2) [Reserved]
(h) Underwriters Laboratories (UL), 333 Pfingsten Road, Northbrook,
IL 60062, 847-272-8800, https://www.ul.com.
(1) UL 1963, Standard for Safety Requirements for Refrigerant
Recovery/Recycling Equipment, Fourth Edition (with revisions through
October 13, 2013), June 1, 2011, in appendix B3 to subpart F, appendix
B4 to subpart F.
(2) [Reserved]
0
15. Amend subpart F by revising appendix A to read as follows:
Appendix A to Subpart F of Part 82--Specifications for Refrigerants
This appendix is based on the Air-Conditioning, Heating, and
Refrigeration Institute Standard 700-2016, Specifications for
Refrigerants.
Section 1. Purpose
1.1 Purpose. The purpose of this standard is to evaluate and
accept/reject refrigerants regardless of source (i.e., new,
reclaimed and/or repackaged) for use in new and existing
refrigeration and air-conditioning products as required under 40 CFR
part 82.
1.1.1 Intent. This standard is intended for the guidance of the
industry including manufacturers, refrigerant reclaimers,
repackagers, distributors, installers, servicemen, contractors and
for consumers.
1.1.2 Review and Amendment. This standard is subject to review
and amendment as the technology advances.
Section 2. Scope
2.1 Scope. This standard specifies acceptable levels of
contaminants (purity requirements) for various fluorocarbon and
other refrigerants regardless of source and lists acceptable test
methods. These refrigerants are as referenced in the ANSI/ASHRAE
Standard 34 with Addenda:
2.1.1 Single-Component Fluorocarbon Refrigerants: R-11, R-12, R-
13, R-22, R-23, R-32, R-113, R-114, R-115, R-116, R-123, R-124, R-
125, R-134a, R-141b, R-142b, R-143a, R-152a, R-218, R-227ea, R-
236fa, R-245fa, R-1233zd(E), R-1234yf, R-1234ze(E);
2.1.2 Single Component Hydrocarbon Refrigerants: R-50, R-170, R-
E170, R-290, R-600, R-600a, R-601, R-601a, R-610, R-1150, R-1270;
2.1.3 Carbon Dioxide Refrigerant: R-744;
2.1.4 Zeotropic Blend Refrigerants: R-401A, R-401B, R-402A, R-
402B, R-403A, R-403B, R-404A, R-405A, R-406A, R-407A, R-407B, R-
407C, R-407D, R-407E, R-407F, R-408A, R-409A, R-409B, R-410A, R-
410B, R-411A, R-411B, R-412A, R-413A, R-414A, R-414B, R-415A, R-
415B, R-416A, R-417A, R-417B, R-417C, R-418A, R-419A, R-419B, R-
420A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-422E, R-
423A, R-424A, R-425A, R-426A, R-427A, R-428A, R-429A, R-430A, R-
431A, R-434A, R-435A, R-437A, R-438A, R-439A, R-440A, R-442A, R-
444A, R-444B, R-445A, R-446A, R-447A, R-448A, R-449A, R-450A;
2.1.5 Zeotropic Hydrocarbon Blend Refrigerants: R-432A, R-433A,
R-433B, R-433C, R-436A, R-436B, R-441A, R-443A; and
2.1.6 Azeotropic Blend Refrigerants: R-500, R-502, R-503, R-
507A, R-508A, R-508B, R-509A, R-510A, R-511A, and R-512A.
Section 3. Definitions
3.1 Definitions. All terms in this appendix will follow the
definitions in Sec. 82.152 unless otherwise defined in this
appendix.
3.2 Shall, Should, Recommended, or It Is Recommended shall be
interpreted as follows:
3.2.1 Shall. Where ``shall'' or ``shall not'' is used for a
provision specified, that provision is mandatory if compliance with
this appendix is claimed.
3.2.2 Should, Recommended, or It is Recommended is used to
indicate provisions which are not mandatory but which are desirable
as good practice.
Section 4. Characterization of Refrigerants and Contaminants
4.1 Characterization. Characterization of single component
fluorocarbon (Table 1A) and zeotropic/azeotropic blend (Table 2A/3)
refrigerants and contaminants are listed in the following general
classifications:
4.1.1 Isomer content (see Table 1A)
4.1.2 Air and other non-condensables (see Tables 1A, 2A, 3)
4.1.3 Water (see Tables 1A, 2A, 3)
4.1.4 All other volatile impurities (see Tables 1A, 2A, 3)
4.1.5 High boiling residue (see Tables 1A, 2A, 3)
4.1.6 Halogenated unsaturated volatile impurities (see Table 1A)
4.1.7 Particulates/solids (see Tables 1A, 2A, 3)
4.1.8 Acidity (see Tables 1A, 2A, 3)
4.1.9 Chloride (see Tables 1A, 2A, 3)
4.2 Hydrocarbon Characterization. Characterization of
hydrocarbon refrigerants (Tables 1B and 2B) and contaminants are
listed in the following general classifications:
4.2.1 Nominal composition
4.2.2 Other allowable impurities
4.2.3 Air and other non-condensables
4.2.4 Sulfur odor
4.2.5 High boiling residue
4.2.6 Particulates/solids
4.2.7 Acidity
4.2.8 Water
4.2.9 All other volatile impurities
4.2.10 Total C3, C4, and C5 polyolefins
4.3 Carbon Dioxide Characterization. Characterization of carbon
dioxide (Table 1C) and its contaminants are listed in the following
general classifications:
4.3.1 Purity
4.3.2 Air and other non-condensables
4.3.3 Water
4.3.4 High boiling residue
4.3.5 Particulates/solids
Section 5. Sampling and Summary of Test Procedures
5.1 Referee Test. The referee test methods for the various
contaminants are summarized in the following paragraphs. Detailed
test procedures are included in 2008 Appendix C to AHRI Standard
700-2014 (incorporated by reference, see Sec. 82.168). If
alternative test methods are employed, the user must be able to
demonstrate that they produce results at least equivalent to the
specified referee test method.
5.2 Refrigerant Sampling
5.2.1 Sampling Precautions. Special precautions should be taken
to ensure that representative samples are obtained for analysis.
Sampling shall be done by qualified personnel following accepted
sampling and safety procedures. Refrigerants with critical
temperatures near or below ambient temperature cannot be reliably
sampled for both liquid and vapor phase without special handling.
Note: Flammable refrigerants which are ASHRAE 34 class 2L, 2, or
3 present additional safety challenges and require additional
measures for sampling safety procedures compared to nonflammable
halocarbons documented in this standard.
5.2.2 Cylinder Preparation. Place a clean, empty sample cylinder
with the valve open in an oven at 110 [deg]C (230 [deg]F) for one
hour. Remove it from the oven while hot, immediately connect it to
an evacuation system and evacuate to less than 56 kPa. Close the
valve and allow it to cool. Weigh the empty cylinder.
5.2.3 Vapor Phase Sampling. A vapor phase sample shall be
obtained for determining the non-condensables. The source
temperature shall be measured and recorded at the time the sample is
taken.
5.2.3.1 Special Handling for Low Critical Temperature
Refrigerant. A vapor phase sample is required to determine non-
condensables and volatile impurities, including other refrigerants.
The vapor phase sample is obtained by regulating the sample
container temperature to 5 K or more above the refrigerant critical
temperature.
5.2.3.2 Handling for Liquid Refrigerants with Boiling Points
Near or Above Room Temperature. Since R-11, R-113, R-123, R-141b, R-
245fa, and R-1233zd(E) have normal boiling points near or above room
temperature, non-condensable determination is not required for these
refrigerants.
Note: Non-condensable gases, if present, will concentrate in the
vapor phase of the
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refrigerant; care must be exercised to eliminate introduction of
either air or liquid phase refrigerant during the sample transfer.
5.2.4 Liquid Phase Sampling. A liquid phase sample is required
for all tests listed in this standard except the test for non-
condensables.
5.2.4.1 Liquid Sampling. Accurate analysis requires that the
sample cylinder, at ambient temperature, be filled to at least 60
percent by volume; however, under no circumstances should the
cylinder be filled to more than 80 percent by volume. This can be
accomplished by weighing the empty cylinder and then the cylinder
with refrigerant. When the desired amount of refrigerant has been
collected, close the valve(s) and immediately disconnect the sample
cylinder.
Note: Care should be taken to ensure that all connections and
transfer lines are dry and evacuated to avoid contaminating the
sample.
Note: Low critical temperature refrigerants can have extremely
high pressure and the sampling vessel, all connections, and transfer
lines must be designed to handle high pressures.
5.2.4.2 Special Handling for Low Critical Temperature
Refrigerant. A liquid phase sample is required for all testing
except volatile impurities, including other refrigerants. The liquid
phase sample is obtained by regulating the sample cylinder
temperature to 2 [deg]C below the critical temperature of the
refrigerant.
Note: If free water is present in the sample, cooling to below 0
[deg]C may result in the formation of ice. Clathrates may form at
temperatures above 0 [deg]C with some fluorocarbon refrigerants.
5.2.4.3 Record Weight. Check the sample cylinder for leaks and
record the gross weight.
5.3 Refrigerant Identification. The required method shall be gas
chromatography (GC) as described in 2008 Appendix C to AHRI Standard
700-2014 (incorporated by reference, see Sec. 82.168) with the
corresponding gas chromatogram figures as illustrated in 2012
Appendix D to AHRI Standard 700-2014 (incorporated by reference, see
Sec. 82.168). The chromatogram of the sample shall be compared to
known standards.
5.3.2 Alternative Method. Determination of the boiling point and
boiling point range is an acceptable alternative test method which
can be used to characterize refrigerants. The test method shall be
that described in section 4.4.3 of BB-F-1421B (incorporated by
reference, see Sec. 82.168).
5.3.3 Required Values. The required values for boiling point and
boiling point range are given in Table 1A, Physical Properties of
Single Component Refrigerants; Table 1B, Physical Properties of
Zeotropic Blends (400 Series Refrigerants); and Table 1C, Physical
Properties of Azeotropic Blends (500 Series Refrigerants).
5.4 Water Content.
5.4.1 Method. The Coulometric Karl Fischer Titration shall be
the primary test method for determining the water content of
refrigerants. This method is described in 2008 Appendix C to AHRI
Standard 700-2014 (incorporated by reference, see Sec. 82.168).
This method can be used for refrigerants that are either a liquid or
a gas at room temperature. For all refrigerants, the sample for
water analysis shall be taken from the liquid phase of the container
to be tested.
5.4.2 Limits. The value for water content shall be expressed in
parts per million (ppm) by weight and shall not exceed the maximum
specified in Tables 1A, 1B, 1C, 2A, 2B, and 3.
5.5 Conductivity. (Alternative to chloride and acidity tests).
5.5.1 Method. A refrigerant may be tested for conductivity as an
indication of the presence of acids, metal chlorides, and any
compound that ionizes in water. This alternative procedure is
intended for use with new or reclaimed refrigerants, however,
significant amounts of oil can interfere with the test results.
5.5.2 Limits. The value for conductivity shall be converted to
and expressed in ppm by weight calculated as HCl and shall be
compared with the maximum acidity value specified (see in Tables 1A,
1B, 1C, 2A, 2B, and 3). If the conductivity is above this amount,
then the chloride and acidity tests shall be conducted. If the
conductivity is not greater than this amount, then the chloride and
acidity tests may be omitted.
5.6 Chloride. The refrigerant shall be tested for chloride as an
indication of the presence of hydrochloric acid and/or metal
chlorides. The referee procedure is intended for use with new or
reclaimed halogenated refrigerants; however, high boiling residue in
excess of the amounts in Tables 1A, 1B, 1C, 2A, 2B, and 3 can
interfere with the test results.
5.6.1 Method. The test method shall be that described in 2008
Appendix C to AHRI Standard 700-2014 (incorporated by reference, see
Sec. 82.168). The test will show noticeable turbidity at chloride
levels of about 3 ppm or greater by weight.
5.5.2 Limits. The results of the test shall not exhibit any sign
of turbidity. Report the results as ``pass'' or ``fail.''
5.7 Acidity.
5.7.1 Method. The acidity test uses the titration principle to
detect any compound that is soluble in water and ionizes as an acid.
The test method shall be that described in 2008 Appendix C to AHRI
Standard 700-2014 (incorporated by reference, see Sec. 82.168).
This test may not be suitable for determination of high molecular
weight organic acids; however these acids will be found in the high
boiling residue test outlined in Section 5.8. The test requires a 50
to 60 gram sample and has a detection limit of 0.1 ppm by weight
calculated as HCl.
5.7.2 Limits. The value for acidity shall be expressed in ppm by
weight as HCl and shall not exceed the limits in Tables 1A, 1B, 2A,
2B, and 3.
5.8 High Boiling Residue.
5.8.1 Method. High boiling residue shall be determined by either
volume or weight. The volume method measures the residue from a
standard volume of refrigerant after evaporation. The gravimetric
method is described in 2008 Appendix C to AHRI Standard 700-2014
(incorporated by reference, see Sec. 82.168). Oils and/or organic
acids will be captured by these methods.
5.8.2 Limits. The value for high boiling residue shall be
expressed as a percentage by volume or weight and shall not exceed
the maximum percent specified in Tables 1A, 1B, 1C, 2A, 2B, and 3.
5.9 Particulates and Solids.
5.9.1 Method. A measured amount of sample shall be placed in a
Goetz bulb under controlled temperature conditions. The
particulates/solids shall be determined by visual examination of the
Goetz bulb prior to the evaporation of refrigerant. For details of
this test method, refer to Part 3 of 2008 Appendix C to AHRI
Standard 700-2014 (incorporated by reference, see Sec. 82.168).
Note: R-744 will partially sublimate when measuring a known
amount of liquid sample into the dry Goetz bulb and the solid R-744
will interfere with the visual examination of particulates/solids.
Determining the particulates/solids shall be completed by visual
examination of the Goetz bulb after the evaporation of the
refrigerant.
5.9.2 Limits. Visual presence of dirt, rust, or other
particulate contamination is reported as ``fail.''
5.10 Non-Condensables.
5.10.1 Method. A vapor phase sample shall be used for
determination of non-condensables. Non-condensable gases consist
primarily of air accumulated in the vapor phase of refrigerants
where the solubility of air in the refrigerant liquid phase is
extremely low and air is not significant as a liquid phase
contaminant. The presence of non-condensable gases may reflect poor
quality control in transferring refrigerants to storage tanks and
cylinders.
The test method shall be gas chromatography with a thermal
conductivity detector as described in 2008 Appendix C to AHRI
Standard 700-2014 (incorporated by reference, see Sec. 82.168).
5.10.2 Limits. The maximum level of non-condensables in the
vapor phase of a test sample shall not exceed the maximum at 25
[deg]C as shown in Tables 1A, 1B, 1C, 2A, 2B, and 3.
5.11 All Other Volatile Impurities and/or Other Refrigerants.
5.11.1 Method. The amount of volatile impurities including other
refrigerants in the subject refrigerant shall be determined by gas
chromatography as described in 2008 Appendix C to AHRI Standard 700-
2014 (incorporated by reference, see Sec. 82.168).
5.11.2 Limits. The test sample shall not contain more than 0.5
percent by weight of volatile impurities including other
refrigerants as shown in Tables 1A, 1B, 1C, 2A, 2B and 3.
5.12 Total C3, C4 and C5 Polyolefins in Hydrocarbon
Refrigerants.
5.12.1 Method. The amount of polyolefin impurities in the
hydrocarbon shall be determined by gas chromatography as described
in GPA Standard 2177-13 (incorporated by reference, see Sec.
82.168).
5.12.2 Limits. The test sample shall not contain more than 0.05
percent by weight in the hydrocarbon sample as shown in Tables 1B
and 2B. Report the results as ``pass'' or ``fail.''
5.13 Sulfur Odor in Hydrocarbon Refrigerants.
5.13.1 Method. The amount of sulfur containing compounds or
other compounds
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with an odor shall be determined by ASTM D1296-01 (Reapproved 2012)
(incorporated by reference, see Sec. 82.168).
5.13.2 Limits. The test sample paper shall not emit a residual
sulfur odor as shown in Tables 1B and 2B.
Section 6. Reporting Procedure
6.1 Reporting Procedure. The source (manufacturer, reclaimer, or
repackager) of the packaged refrigerant shall be identified. The
refrigerant shall be identified by its accepted refrigerant number
and/or its chemical name. Maximum allowable levels of contaminants
are shown in Tables 1A, 1B, 1C, 2A, 2B, and 3. Test results shall be
tabulated in a similar manner.
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Section 7.0 References--Normative
Listed here are all standards, handbooks, and other publications
essential to the formation and implementation of the standard. All
references in this appendix are considered as part of this standard.
ANSI/ASHRAE Standard 34-2013, Designation and Safety Classification
of Refrigerants, with Addenda, American National Standards
Institute/American Society of Heating, Refrigerating, and Air-
Conditioning Engineers.
2008 Appendix C to AHRI Standard 700-2014, 2008 Appendix C for
Analytical Procedures for AHRI Standard 700-2014--Normative,
copyright 2008 (incorporated by reference, see Sec. 82.168).
ASTM D1296-01 (Reapproved 2012), Standard Test Method for Odor of
Volatile Solvents and Diluents, approved July 1, 2012, (incorporated
by reference, see Sec. 82.168).
BB-F-1421B, Federal Specification for ``Fluorocarbon Refrigerants,''
dated March 5, 1982, (incorporated by reference, see Sec. 82.168).
GPA Standard 2177-13, Analysis of Natural Gas Liquid Mixtures
Containing Nitrogen and Carbon Dioxide by Gas Chromatography,
Revised, copyright 2013, (incorporated by reference, see Sec.
82.168).
REFPROP Reference Fluid Thermodynamic and Transport Properties NIST
Standard Reference Database 23 version 9.1, 2013, U.S. Department of
Commerce, Technology Administration, National Institute of Standards
and Technology.
Section 8.0 References--Informative
Listed here are standards, handbooks, and other publications
which may provide useful information and background but are not
considered essential.
2012 Appendix D to AHRI Standard 700-2014, 2012 Appendix D for Gas
Chromatograms for AHRI Standard 700-2014--Informative, copyright
2012, (incorporated by reference, see Sec. 82.168).
0
16. Amend subpart F by adding appendix B3 to read as follows:
Appendix B3 to Subpart F of Part 82--Performance of Refrigerant
Recovery, Recycling, and/or Reclaim Equipment
This appendix is based on the Air-Conditioning, Heating, and
Refrigeration Institute Standard 740-2016, Performance Rating of
Refrigerant Recovery Equipment and Recovery/Recycling Equipment.
Section 1. Purpose
1.1 The purpose of this standard is to establish methods of
testing for rating and evaluating the performance of refrigerant
recovery, and/or recycling equipment and general equipment
requirements (herein referred to as ``equipment'') for contaminant
or purity levels, capacity, speed and purge loss to minimize
emission into the atmosphere of designated refrigerants.
Section 2. Scope
2.1 This standard applies to equipment for recovering and/or
recycling single refrigerants, azeotropes, zeotropic blends, and
their normal contaminants from refrigerant systems. This standard
defines the test apparatus, test gas mixtures, sampling procedures
and analytical techniques that will be used to determine the
performance of refrigerant recovery and/or recycling equipment
(hereinafter, ``equipment''). Appendix B4 of this subpart
establishes standards for recovery/recycling equipment used with
flammable refrigerants.
Section 3. Definitions
3.1 Definitions. All terms in this appendix will follow the
definitions in Sec. 82.152 unless otherwise defined in this
appendix.
3.2 Clearing Refrigerant. Procedures used to remove trapped
refrigerant(s) from equipment before switching from one refrigerant
to another.
3.3 High Temperature Vapor Recovery Rate. For equipment having
at least one designated refrigerant (see Section 11.2 of this
appendix) with a boiling point in the range of -50 to +10 [deg]C,
the rate will be measured for R-22, or the lowest boiling point
refrigerant if R-22 is not a designated refrigerant.
3.4 Published Ratings. A statement of the assigned values of
those performance characteristics, under stated rating conditions,
by which a unit may be chosen to fit its application. These values
apply to all units of like nominal size and type (identification)
produced by the same manufacturer. As used herein, the term
``published rating'' includes the rating of all performance
characteristics shown on the unit or published in specifications,
advertising, or other literature controlled by the manufacturer, at
stated rating conditions.
3.5 Push/Pull Liquid Recovery. The push/pull refrigerant
recovery method is defined as the process of transferring liquid
refrigerant from a refrigeration system to a receiving vessel by
lowering the pressure in the vessel and raising the pressure in the
system, and by connecting a separate line between the system liquid
port and the receiving vessel.
3.6 Recycle Flow Rate. The amount of refrigerant processed
divided by the time elapsed in the recycling mode. For equipment
which uses a separate recycling sequence, the recycle rate does not
include the recovery rate (or elapsed time). For equipment which
does not use a separate recycling sequence, the recycle rate is a
rate based solely on the higher of the liquid or vapor recovery
rate, by which the contaminant levels were measured.
3.7 Residual Trapped Refrigerant. Refrigerant remaining in
equipment after clearing refrigerant.
3.8 Shall, Should, Recommended or It Is Recommended shall be
interpreted as follows:
3.8.1 Shall. Where ``shall'' or ``shall not'' is used for a
provision specified, that provision is mandatory if compliance with
this appendix is claimed.
3.8.2 Should, Recommended or It Is Recommended is used to
indicate provisions which are not mandatory but which are desirable
as good practice.
3.9 Standard Contaminated Refrigerant Sample. A mixture of new
or reclaimed refrigerant and specified quantities of identified
contaminants which constitute the mixture to be processed by the
equipment under test. These contaminant levels are expected only
from severe service conditions.
3.10 Trapped Refrigerant. The amount of refrigerant remaining in
the equipment after the recovery or recovery/recycling operation but
before clearing refrigerant.
3.11 Vapor Recovery Rate. The average rate that refrigerant is
withdrawn from the mixing chamber between two pressures as vapor
recovery rate is changing depending on the pressure. The initial
condition is vapor only at saturation pressure and temperature at
either 24 [deg]C or at the boiling point at 100 kPa, whichever is
higher. The final pressure condition is 10 percent of the initial
pressure, but not lower than the equipment final recovery vacuum and
not higher than 100 kPa.
Section 4. General Equipment Requirements
4.1 Equipment Information. The equipment manufacturer shall
provide operating instructions, necessary maintenance procedures,
and source information for replacement parts and repair.
4.2 Filter Replacement. The equipment shall indicate when any
filter/drier(s) needs replacement. This requirement can be met by
use of a moisture transducer and indicator light, by use of a sight
glass/moisture indicator, or by some measurement of the amount of
refrigerant processed such as a flow meter or hour meter. The
equipment manufacturer must provide maximum quantity recycled or
filter change interval in its written instructions.
4.3 Purge of Non-Condensable. If non-condensables are purged,
the equipment shall either automatically purge non-condensables or
provide an indicating means to guide the purge process. Recycling
equipment must provide purge means.
4.4 Purge Loss. The total refrigerant loss due to purging non-
condensables, draining oil, and clearing refrigerant (see Section
9.5) shall be less than 3 percent (by weight) of total processed
refrigerant.
4.5 Permeation Rate. High pressure hose assemblies \5/8\ in. (16
mm) nominal and smaller shall not exceed a permeation rate of 3.9 g/
cm\2\/yr (internal surface) at a temperature of 48.8 [deg]C. Hose
assemblies that UL recognized as having passed UL 1963, 2011
requirements shall be accepted without testing. See Section 7.1.4 of
this appendix.
4.6 Clearing Trapped Refrigerant. For equipment rated for more
than one refrigerant, the manufacturer shall provide a method and
instructions which will accomplish connections and clearing within
15 minutes. Special equipment, other than a vacuum pump or manifold
gauge set, shall be furnished. The clearing procedure shall not rely
upon the storage cylinder below saturated pressure conditions at
ambient temperature.
4.7 Temperature. The equipment shall be evaluated at 24 [deg]C
with additional limited evaluation at 40 [deg]C. Normal operating
conditions range from 10 [deg]C to 40 [deg]C.
4.8 Exemptions. Equipment intended for recovery only shall be
exempt from Sections 4.2 and 4.3.
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Section 5. Contaminated Refrigerants
5.1 Sample Characteristics. The standard contaminated
refrigerant sample shall have the characteristics specified in Table
1, except as provided in Section 5.2 of this appendix. Testing shall
be conducted at an ambient temperature of 24 [deg]C 1
[deg]C except high temperature vapor recovery shall be 40 [deg]C
1 [deg]C.
5.2 Recovery-only Testing. Recovery equipment not rated for
removal of contaminants shall be tested with new or reclaimed
refrigerant.
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Section 6. Test Apparatus
6.1 General Recommendations. The recommended test apparatus is
described in the following paragraphs. If alternate test apparatus
are employed, the user shall be able to demonstrate that they
produce results equivalent to the specified reference apparatus.
6.2 Self-Contained Equipment Test Apparatus. The apparatus,
shown in Figure 1, shall consist of:
6.2.1 Mixing Chamber. A mixing chamber consisting of a tank with
a conical-shaped bottom, a bottom port and piping for delivering
refrigerant to the equipment, various ports and valves for adding
refrigerant to the chamber, and stirring means for mixing.
6.2.2 Filling Storage Cylinder. The storage cylinder to be
filled by the refrigerant transferred shall be cleaned and at the
pressure of the recovered refrigerant at the beginning of the test.
It will not be filled over 80 percent, by volume.
6.2.3 Vapor Feed. Vapor refrigerant feed consisting of
evaporator, control valves and piping to create a 3.0 [deg]C
superheat condition at an evaporating temperature of 21 [deg]C
2 [deg]C.
6.2.4 Alternative Vapor Feed. An alternative method for vapor
feed shall be to pass the refrigerant through a boiler and then
through an automatic pressure regulating valve set at different
saturation pressures, moving from saturated pressure at 24 [deg]C to
final pressure of recovery.
6.2.5 Liquid Feed. Liquid refrigerant feed consisting of control
valves, sampling port, and piping.
6.2.6 Instrumentation. Instrumentation capable of measuring
weight, temperature, pressure, and refrigerant loss, as required.
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6.3 Size. The size of the mixing chamber and filling storage
cylinder used during testing shall correspond to the size of the
equipment being tested per Section 6.3.1 or 6.3.2:
6.3.1 For equipment utilizing nominal \1/4\'' or \3/8\'' flare
ports and hoses, the mixing chamber shall be 0.09 m\3\ and all
ports, valves, mixing valves, and piping shall be \1/2\'' or larger,
reduced down to the port size of the equipment by fittings at the
connection ports of the mixing chamber. The filling storage cylinder
used during testing shall be a nominal 50-pound water capacity DOT
4Bx cylinder with \1/4\'' flare liquid and vapor ports.
6.3.2 For equipment utilizing \1/2\'' or larger flare ports and
hoses, the mixing chamber shall be 0.45 m\3\ (or nominal 1000-pound
water capacity DOT 4Bx cylinder) and all ports, valves, mixing
valves, and piping shall be 1\1/2\'' or larger, reduced down to the
port size of the equipment by fittings at the connection ports of
the mixing chamber. The filling storage cylinder used during testing
shall be a nominal 1000-pound water capacity DOT 4Bx cylinder with
liquid and vapor ports, valves and piping sized \3/4\'' NPT and
reduced or increased to the port size of the equipment by fittings
at the connection ports of the filling storage cylinder.
6.4 System Dependent Equipment Test Apparatus. This test
apparatus is to be used for final recovery vacuum rating of all
system dependent equipment.
6.4.1 Test Setup. The test apparatus shown in Figure 2 consists
of a complete refrigeration system. The manufacturer shall identify
the refrigerants to be tested. The test apparatus can be modified to
facilitate operation or testing of the system dependent equipment if
the modifications to the
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apparatus are specifically described within the manufacturer's
literature. A 6.3 mm balance line shall be connected across the test
apparatus between the high- and low-pressure sides, with an
isolation valve located at the connection to the compressor high
side. A 6.3 mm access port with a valve core shall be located in the
balance line for the purpose of measuring final recovery vacuum at
the conclusion of the test.
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Section 7. Performance Testing Procedures
7.1 General Testing.
7.1.1 Temperatures. Testing shall be conducted at an ambient
temperature of 24 [deg]C 1 [deg]C except high
temperature vapor recovery shall be at 40 [deg]C 1
[deg]C. The evaporator conditions of Section 6.2.3 shall be
maintained as long as liquid refrigerant remains in the mixing
chamber.
7.1.2 Refrigerants. The equipment shall be tested for all
designated refrigerants (see Section 11.2). All tests in Section 7
shall be completed for each refrigerant before starting tests with
the next refrigerant.
7.1.3 Selected Tests. Tests shall be as appropriate for the
equipment type and ratings parameters selected (see Sections 9.9,
11.1 and 11.2).
7.1.4 Hose Assemblies. For the purpose of limiting refrigerant
emissions to the atmosphere, hose assemblies shall be tested for
permeation according to UL Standard 1963 (incorporated by reference,
see Sec. 82.168).
7.2 Equipment Preparation and Operation. The equipment shall be
prepared and operated per the operating instructions.
7.3 Test Batch. The test batch consisting of refrigerant sample
(see Section 5) of the test refrigerant shall be prepared and
thoroughly mixed. Continued mixing or stirring shall be required
during the test while liquid refrigerant remains in the mixing
chamber. The mixing chamber shall be filled to 80 percent level by
volume.
7.3.1 Control Test Batch. Prior to starting the test for the
first batch for each refrigerant, a liquid sample will be drawn from
the mixing chamber and analyzed per Section 8 to assure that
contaminant levels match Table 1 within 10 ppm for
moisture, 20 ppm for oleic acid and 0.5
percent for oil.
7.4 Recovery Tests (Recovery and Recovery/Recycling Equipment)
7.4.1 Determining Recovery Rates. The liquid and vapor
refrigerant recovery rates shall be measured during the first test
batch for each refrigerant (see Sections 9.1, 9.2 and 9.4).
Equipment preparation and recovery cylinder changeover shall not be
included in elapsed time measurements for determining vapor recovery
rate and liquid refrigerant recovery rate. Operations such as
subcooling the recovery cylinder shall be included. The recovery
cylinder shall be the same size as per Section 6.3 or as furnished
by the equipment manufacturer. Oversized tanks shall not be
permitted.
7.4.1.1 Liquid Refrigerant Recovery Rate. If elected, the
recovery rate using the liquid refrigerant feed means (see Section
6.2.5) shall be determined. After the equipment reaches stabilized
conditions of condensing temperature and/or recovery cylinder
pressure, the recovery process shall be stopped and an initial
weight shall be taken of the mixing chamber (see Section 9.2). The
recovery process shall be continued for a period of time sufficient
to achieve the accuracy in Section 9.4. The recovery process shall
be stopped and a final weight of the mixing chamber shall be taken.
7.4.1.2 Vapor Refrigerant Recovery Rate. If elected, the average
vapor flow rate shall be measured to accuracy requirements in
Section 9.4 under conditions with no liquid
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refrigerant in the mixing chamber. The liquid recovery feed means
shall be used. At initial conditions of saturated vapor at the
higher of 24 [deg]C or the boiling temperature (100 kPa), the weight
of the mixing chamber and the pressure shall be recorded. At final
conditions representing pressure in the mixing chamber of 10 percent
of the initial condition, but not less than the final recovery
vacuum (see Section 9.6) nor more than 100 kPa, measure the weight
of the mixing chamber and the elapsed time. At initial conditions,
the recovery cylinder shall be at saturation pressure at ambient
conditions.
7.4.1.3 High Temperature Vapor Recovery Rate. This is applicable
for equipment having at least one designated refrigerant (see
Section 11.2) with a boiling point between -50 [deg]C and +10
[deg]C. Measure the rate for R-22, or the refrigerant with the
lowest boiling point if R-22 is not a designated refrigerant. Repeat
the test in Section 7.4.1.2 at saturated conditions at 40 [deg]C and
continue to operate equipment to assure it will operate at this
condition (see Section 7.4.3). At initial conditions, the recovery
cylinder shall be at saturated pressure at 40 [deg]C.
7.4.1.4 Push/Pull Liquid Refrigerant Recovery Rate. If elected,
the average liquid push/pull flow rate shall be measured to accuracy
requirements in Section 9.4. The mixing chamber and filling storage
cylinder shall be filled with refrigerant vapor at initial
conditions of saturated vapor at the higher of 24 [deg]C or the
boiling temperature at 100 kPa. An amount of liquid refrigerant
shall be added to the mixing chamber equivalent to 80 percent by
weight of the capacity of the filling storage cylinder. The pressure
between the mixing chamber and filling storage cylinder shall be
equalized and stabilized at initial conditions of saturated vapor at
the higher of 24 [deg]C or the boiling temperature at 100 kPa. The
initial weight of the mixing chamber and the pressure shall be
recorded. The equipment is then operated in push/pull liquid
recovery mode and the weight change of the mixing chamber is
recorded over time until all of the liquid has been transferred.
7.4.2 Recovery Operation. This test is for determining the final
recovery vacuum and the ability to remove contaminants as
appropriate. If equipment is rated for liquid recovery (see Section
7.4.1.3), liquid recovery feed means described in Section 6.2.5
shall be used. If not, vapor recovery means described in Sections
6.2.3 or 6.2.4 shall be used. Continue recovery operation until all
liquid is removed from the test apparatus and vapor is removed to
the point where equipment shuts down by automatic means or is
manually shut off per operating instructions.
7.4.2.1 Oil Draining. Capture oil from the equipment at
intervals as required in the instructions. Record the weight of the
container. Completely remove refrigerant from oil by evacuation or
other appropriate means. The weight difference shall be used in
Section 7.5.2.
7.4.3 Final Recovery Vacuum. At the end of the first test batch
for each refrigerant, the liquid valve and vapor valve of the
apparatus shall be closed. After waiting 1 minute, the mixing
chamber pressure shall be recorded (see Section 9.6).
7.4.4 Residual Refrigerant. This test will measure the mass of
remaining refrigerant in the equipment after clearing and therefore
the extent of mixing different refrigerants (see Section 9.6).
7.4.4.1 Initial Conditions. At the end of the last test for each
batch for each refrigerant, the equipment shall be disconnected from
the test apparatus (Figure 1). Recycle per Section 7.5, if
appropriate. Perform refrigerant clearing operations as called for
in the instruction manual. Capture and record the weight of any
refrigerant which would have been emitted to the atmosphere during
the clearing process for use in Section 9.5. If two loops are used
for recycling, trapped refrigerant shall be measured for both.
7.4.4.2 Residual Trapped Refrigerant. Evacuate an empty test
cylinder to 1.0 kPa. Record the empty weight of the test cylinder.
Open all valves to the equipment so as to provide access to all
trapped refrigerant. Connect the equipment to the test cylinder and
operate valves to recover the residual refrigerant. Record the
weight of the test cylinder using a recovery cylinder pressure no
less than specified in Section 6.2.2. Place the test cylinder in
liquid nitrogen for a period of 30 minutes or until a vacuum of 1000
microns is reached, whichever occurs first.
7.5 Recycling Tests (Recovery/Recycling Equipment).
7.5.1 Recycling Operation. As each recovery cylinder is filled
in Section 7.4.2, recycle according to operating instructions. There
will not necessarily be a separate recycling sequence. Note non-
condensable purge measurement in Section 9.5.
7.5.1.1 Recycle Flow Rate. While recycling the first recovery
cylinder for each refrigerant, determine the recycling flow rate by
appropriate means (see Section 9.3) to achieve the accuracy required
in Section 9.4.
7.5.2 Non-Condensable Sample. After completing Section 7.4.3,
prepare a second test batch (see Section 7.3). Recover per Section
7.4.2 until the current recovery cylinder is filled to 80 percent
level by volume. Recycle per Section 7.5.1. Mark this cylinder and
set aside for taking the vapor sample. For equipment having both an
internal tank of at least 3 kg refrigerant capacity and an external
recovery cylinder, two recovery cylinders shall be marked and set
aside. The first is the cylinder described above. The second
cylinder is the final recovery cylinder after filling it to 80
percent level by volume and recycling.
7.5.2.1 Push/Pull Liquid Refrigerant Recovery Rate. This rate
shall be measured by weight change of the mixing chamber divided by
elapsed time (see Section 7.4.1.4). The units shall be kg/min and
the accuracy shall be per Section 9.4.
7.5.3 Liquid Sample for Analysis. Repeat steps in Sections 7.3,
7.4.2 and 7.5.1 with further test batches until indication means in
Section 4.2 show the filter/drier(s) need replacing.
7.5.3.1 Multiple Pass. For equipment with a separate recycling
circuit (multiple pass), set aside the current cylinder and draw the
liquid sample (see Section 7.4) from the previous cylinder.
7.5.3.2 Single Pass. For equipment with the single pass
recycling circuit, draw the liquid sample (see Section 7.4) from the
current cylinder.
7.6 Measuring Refrigerant Loss. Refrigerant loss due to non-
condensables shall be determined by appropriate means (see Section
9.5.1). The loss could occur in Sections 7.4.1, 7.4.2 and 7.5.1.
Section 8. Sampling and Chemical Analysis Methods
8.1 Chemical Analysis. Chemical analysis methods shall be
specified in appropriate standards such as AHRI Standard 700, 2008
Appendix C for Analytical Procedures for AHRI Standard 700-2014-
Normative, and Addendum 700-1 to Appendix C. If alternate test
methods are employed, the laboratory must be able to demonstrate
that they produce results equivalent to the specified referee
method.
8.2 Refrigerant Sampling.
8.2.1 Moisture Content. The water content in refrigerant shall
be measured by the Karl Fischer Coulometric Titration technique.
Report the moisture level in parts per million by weight.
8.2.2 Chloride Ions. Chloride ions shall be measured by
turbidity tests. At this time, quantitative results have not been
defined. Report chloride content as ``pass'' or ``fail.'' In the
future, when quantitative results are possible, report chloride
content as parts per million by weight.
8.2.3 Acid Content. The acidity test uses the titration
principle. Report the acidity in parts per million by weight (mg
KOH/kg) of sample.
8.2.4 High Boiling Residue. High boiling residues shall use
measurement of the volume of residue after evaporating a standard
volume of refrigerant. Using weight measurement and converting to
volumetric units is acceptable. Report high boiling residues as
percent by volume.
8.2.5 Particulates/Solids. The particulates/solids measurement
employs visual examination. Report results as ``pass'' or ``fail.''
8.2.6 Non-condensables. The level of contamination by non-
condensable gases in the base refrigerant being recycled shall be
determined by gas chromatography. Report results as percent by
volume.
Section 9. Performance Calculations for Ratings
9.1 Vapor Refrigerant Recovery Rate. This rate shall be measured
by weight change of the mixing chamber divided by elapsed time (see
7.4.1.2). The units shall be kg/min and the accuracy shall be per
Section 9.4.
9.1.1 High Temperature Vapor Recovery Rate. This rate shall be
measured by measured weight change of the mixing chamber divided by
elapsed time (see Section 7.4.1.3). The units shall be kg/min and
the accuracy shall be per Section 9.4.
9.2 Liquid Refrigerant Recovery Rate. This rate shall be
measured by weight change of the mixing chamber divided by elapsed
time (see 7.4.1.3). The units shall be kg/min and the accuracy shall
be per Section 9.4.
9.3 Recycle Flow Rate. The recycle flow rate shall be as defined
in Section 3.12,
[[Page 82389]]
expressed in kg/min, and the accuracy shall be per Section 9.4.
9.3.1 For equipment using multi-pass recycling or a separate
sequence, the recycle rate shall be determined by dividing the net
weight, W, of the refrigerant to be recycled by the actual time T
required to recycle. Any set-up or operator interruptions shall not
be included in the time T.
9.3.2 If no separate recycling sequence is used, the recycle
rate shall be the higher of the vapor refrigerant recovery rate or
the liquid refrigerant recovery rate. The recycle rate shall match a
process which leads to contaminant levels in Section 9.9.
Specifically, a recovery rate determined from bypassing a
contaminant removal device cannot be used as a recycle rate when the
contaminant levels in Section 9.9 are determined by passing the
refrigerant through the contaminant removal device.
9.4 Accuracy of Flow Rates. The accuracy of test measurements in
Sections 9.1, 9.2 and 9.3 shall be 008 kg/min for flow
rates up to 0.42 kg/min and 2.0 percent for flow rates
larger than 0.42 kg/min. Ratings shall be expressed to the nearest
0.02 kg/min.
9.5 Refrigerant Loss. This calculation will be based upon the
net loss of refrigerant which would have been eliminated in the non-
condensable purge process (see Section 7.5.1), the oil draining
process (see Section 7.4.2.1) and the refrigerant clearing process
(see Section 7.4.4.1), all divided by the net refrigerant content of
the test batches. The refrigerant loss shall not exceed 3 percent by
weight.
9.5.1 Non-Condensable Purge. Evacuate an empty container to 2
kPa. Record the empty weight of the container. Place the container
in a dry ice bath. Connect the equipment purge connection to the
container and operate purge according to operating instructions so
as to capture the non-condensables and lost refrigerant. Weigh the
cylinder after the recycling is complete. Equivalent means are
permissible.
For units which either recycle or publish (list) non-condensable
removal, non-condensable gases are purged, operating the recycle
device per the manufacturer's instructions through an evaporator
pressure regulator (EPR) valve into a liquid nitrogen-chilled
cylinder. This combination will simulate the atmosphere while
allowing the capture of purge gases. The cylinder is weighed before
and after the purge procedure.
9.5.2 Oil Draining. Refrigerant removed from the oil after
draining shall be collected and measured in accordance with Section
7.4.2.1.
9.5.3 Clearing Unit. Refrigerant captured during the clearing
process shall be measured in accordance with Section 7.4.4.1.
9.6 Final Recovery Vacuum. The final recovery vacuum shall be
the mixing chamber pressure in Section 7.4.3 expressed in kPa at 24
[deg]C. The accuracy of the measurement shall be within 0.33 kPa.
9.7 Residual Trapped Refrigerant. The amount of residual trapped
refrigerant shall be the final weight minus the initial weight of
the test cylinder in Section 7.4.4.2, expressed in kg. The accuracy
shall be 0.02 kg and reported to the nearest 0.05 kg.
9.8 Refrigerant Processed. The amount of refrigerant processed
before changing filters (see Section 7.5.3) shall be expressed in kg
to an accuracy of 1 percent.
9.9 Contaminant Levels. The contaminant levels remaining after
testing shall be published as follows:
Moisture content, ppm by weight
Chloride ions, pass/fail
Acid Content, ppm by weight
High boiling residue, percent (by volume)
Particulates/solids, pass/fail (visual examination)
Non-condensables, percent (by volume)
9.10 Minimum Data Requirements for Published Ratings. Published
ratings shall include all of the parameters as shown in Tables 2 and
3 for each refrigerant designated by the manufacturer.
Section 10. Tolerances
10.1 Tolerances. Performance related parameters shall be equal
to or better than the published ratings.
Section 11. Marking and Nameplate Data
11.1 Marking and Nameplate Data. The nameplate shall display the
manufacturer's name, model designation, type of equipment (Recovery
or Recovery/Recycling and Self-Contained or System Dependent),
designated refrigerant(s), capacities, and electrical
characteristics where applicable. The nameplate shall also conform
to the labeling requirements established for certified recycling and
recovery equipment established at 40 CFR 82.158(h).
Recommended nameplate voltages for 60 Hertz systems shall
include one or more of the equipment nameplate voltages shown in
Table 1 of AHRI 110-2016 (incorporated by reference, see Sec.
82.168). Recommended nameplate voltages for 50 Hertz systems shall
include one or more of the utilization voltages shown in Table 1 of
IEC 60038 (English version) (incorporated by reference, see Sec.
82.168).
11.2 Data for Designated Refrigerants. For each refrigerant
designated, the manufacturer shall include all the following that
are applicable per Table 2:
a. Liquid Recovery Rate, kg/min
b. Vapor Recovery Rate, kg/min
c. High Temperature Vapor Recovery Rate, kg/min
d. Push/Pull Liquid Recovery Rate, kg/min
e. Final Recovery Vacuum Level, kPa
f. Recycle Flow Rate, kg/min
g. Refrigerant Loss, kg
h. Residual Trapped Refrigerant, kg
i. Quantity of Refrigerant Processed at Rated Conditions, kg
Table 2--Performance Ratings for Refrigerant Recovery and Recovery/Recycling Equipment 4 5
----------------------------------------------------------------------------------------------------------------
Type of equipment
-------------------------------------------------------------------
Parameter System
Recovery Recovery/ Recycling dependent
recycling equipment
----------------------------------------------------------------------------------------------------------------
Liquid Refrigerant Recovery Rate, kg/min.... X 1 4 X\1\ N/A \5\ N/A
Vapor Refrigerant Recovery Rate, kg/min..... X \1\ X \1\ N/A N/A
High Temperature Vapor Recovery Rate, kg/min X \1\ X \1\ N/A N/A
Push/Pull Liquid Recovery Rate, kg/min...... X \1\ X \1\ N/A N/A
Final Recovery Vacuum Level, kPa............ X X N/A X
Recycle Flow Rate, kg/min................... N/A X X N/A
Refrigerant Loss, kg........................ X \2\ X X X \3\
Residual Trapped Refrigerant, kg............ X \3\ X \2\ X \2\ X \2\
Quantity of Refrigerant Processed at Rated N/A X X N/A
Conditions, kg.............................
----------------------------------------------------------------------------------------------------------------
\1\ For a recovery or recovery/recycle unit, one must rate either liquid refrigerant recovery rate or vapor
refrigerant recovery rate or one can rate for both. If rating only one, the other shall be indicated by N/A,
``not applicable.''
\2\ Mandatory rating if multiple refrigerants, oil separation or non-condensable purge are rated.
\3\ Mandatory rating for equipment tested for multiple refrigerants.
\4\ ``X'' denotes mandatory rating or equipment requirements.
\5\ ``N/A'' indicates ``Not Applicable'' for a parameter that does not have a rating.
[[Page 82390]]
Table 3--Contaminant Removal Ratings for Refrigerant Recovery and Recovery/Recycling Equipment 1 2
----------------------------------------------------------------------------------------------------------------
Type of equipment
-------------------------------------------------------------------
Contaminant System
Recovery Recovery/ Recycling dependent
recycling equipment
----------------------------------------------------------------------------------------------------------------
Moisture Content, ppm by weight............. N/A \2\ X \1\ X N/A
Chloride Ions, pass/fail.................... N/A X X N/A
Acid Content, ppm by weight................. N/A X X N/A
High Boiling Residue, % by volume........... N/A X X N/A
Particulates/solids, pass/fail.............. N/A X X N/A
Non-condensables, % by volume............... N/A X X N/A
----------------------------------------------------------------------------------------------------------------
\1\ ``X'' denotes mandatory rating.
\2\ ``N/A'' indicates ``Not Applicable'' for a parameter that does not have a rating.
Section 12. References
Listed here are all standards, handbooks, and other publications
essential to the formation and implementation of the standard. All
references in this appendix are considered as part of this standard.
UL 1963, Standard for Safety Refrigerant Recovery/Recycling
Equipment, Fourth Edition (with revisions through October 13, 2013),
dated June 1, 2011, (incorporated by reference, see Sec. 82.168).
AHRI 110-2016, 2016 Standard for Air-Conditioning, Heating
and Refrigerating Equipment Nameplate Voltages, copyright 2016
(incorporated by reference, see Sec. 82.168).
AHRI Standard 700-2015, Specifications for Refrigerants,
Air-Conditioning, Heating, and Refrigeration Institute
IEC 60038 IEC Standard Voltages, Edition 7.0, 2009-06
(English version) (incorporated by reference, see Sec. 82.168).
Section 13.0. Particulate Used in Standard Contaminated Refrigerant
Sample
13.1 Particulate Specification
13.1.1 The particulate material (pm) will be a blend of 50
percent coarse air cleaner dust as received, and 50 percent retained
on a 200-mesh screen. The coarse air cleaner dust is available from:
AC Spark Plug Division; General Motors Corporation; Flint, Michigan.
13.1.2 Preparation of Particulate Materials. To prepare the
blend of contaminant per ANSI/ASHRAE Standard 63.2-1996 (RA 2010),
first wet screen a quantity of coarse air cleaner dust on a 200-mesh
screen (particle retention 74 [micro]m). This is done by placing a
portion of the dust on a 200-mesh screen and running water through
the screen while stirring the dust with the fingers. The fine
contaminant particles passing through the screen are discarded. The
larger than 200-mesh particles collected on the screen are removed
and dried for one hour at 110 [deg]C. The blend of standard
contaminant is prepared by mixing 50 percent by weight of coarse air
cleaner dust as received (after drying for one hour at 110 [deg]C)
with 50 percent by weight of the larger than 200-mesh screened dust.
13.1.3 Particle Size Analysis. The coarse air cleaner dust as
received and the blend used as the standard contaminant have the
following approximate particle size analysis:
Table B1--Weight Percentage in Various [micro]m Size Ranges for Particle
Size Analysis
------------------------------------------------------------------------
As
Size range ([micro]m) received Blend (wt
(wt %) %)
------------------------------------------------------------------------
0-5............................................... 12 6
5-10.............................................. 12 6
10-20............................................. 14 7
20-40............................................. 23 11
40-80............................................. 30 32
80-200............................................ 9 38
------------------------------------------------------------------------
0
17. Amend subpart F by adding appendix B4 to read as follows:
Appendix B4 to Subpart F of Part 82--Performance and Safety of
Flammable Refrigerant Recovery and/or Recycling Equipment
This appendix is based on the Air-Conditioning, Heating, and
Refrigeration Institute Standard 740-2016, Performance Rating of
Refrigerant Recovery Equipment and Recovery/Recycling Equipment, and
Underwriters Laboratories Standard 1963-2011 (Fourth Edition),
Standard for Safety: Refrigerant Recovery/Recycling Equipment,
including Supplement SB (added October 11, 2013), Requirements for
Refrigerant Recovery/Recycling Equipment Intended for Use with a
Flammable Refrigerant.
Section 1. Purpose
1.1 The purpose of this standard is to establish methods of
testing for rating and evaluating the performance and safety of
refrigerant recovery and/or recycling equipment and general
equipment requirements (herein referred to as ``equipment'') for
contaminant or purity levels, capacity, speed and purge loss to
minimize emission into the atmosphere of designated refrigerants, as
well as safety for use with flammable refrigerants.
Section 2. Scope
2.1 This standard applies to equipment for recovering and/or
recycling flammable single refrigerants, azeotropes, zeotropic
blends, and their normal contaminants from refrigerant systems. This
standard defines the test apparatus, test gas mixtures, sampling
procedures, analytical techniques, and equipment construction that
will be used to determine the performance and safety of refrigerant
recovery and/or recycling equipment (hereinafter, ``equipment'').
Section 3. Definitions
3.1 All terms in this appendix will follow the definitions in
Sec. 82.152 and Appendix B3 to Subpart F of Part 82 unless
otherwise defined in this appendix.
3.2 All definitions used in UL 1963, including the definitions
in Supplement SB, as applicable, are incorporated by reference, see
Sec. 82.168.
Section 4. Evaluation of Performance
4.1 Performance Ratings. All recovery and/or recycling equipment
to be tested under this appendix must follow the procedures and meet
all requirements established in Appendix B3 to Subpart F of Part 82
to determine the performance ratings in addition to the safety
evaluation conducted under the rest of this appendix.
4.2 Safety. All recovery and/or recycling equipment to be tested
under this appendix must follow the procedures and meet all
requirements in Supplement SB (added October 11, 2013), Requirements
for Refrigerant Recovery/Recycling Equipment Intended for Use with a
Flammable Refrigerant in Underwriters Laboratories Standard 1963-
2011 (Fourth Edition), Standard for Safety: Refrigerant Recovery/
Recycling Equipment (incorporated by reference, see Sec. 82.168).
0
18. Amend subpart F by revising appendix D to read as follows:
Appendix D to Subpart F of Part 82--Standards for Becoming a Certifying
Program for Technicians
a. Test Preparation. Technicians must pass an EPA-approved test,
provided by an EPA-approved certifying program to be certified as a
Type I technician. Organizations providing Type I certification only
may choose either an on-site format or a mail-in format similar to
what is permitted under the MVACs program.
Technicians must pass a closed-book, proctored test,
administered in a secure environment, by an EPA-approved certifying
program to be certified as a Type II or Type III technician.
Technicians must pass a closed-book, proctored test (or series
of tests), administered in a secure environment, by an
[[Page 82391]]
EPA-approved certifying program to be certified as a Universal
technician. Mail-in format Type I tests cannot be used toward a
Universal certification.
Each certifying program must assemble tests by choosing a
prescribed subset from the EPA test bank. EPA will have a test bank
with more questions than are needed for an individual test, which
will enable the certifying program to generate multiple tests in
order to discourage cheating. Each test must include 25 questions
drawn from Group 1 and 25 questions drawn from each relevant
technical Group. Tests for Universal technicians will include 100
questions (25 from Group 1 and 25 from each relevant technical
Group). Universal tests may be taken all at once, or by combining
passing scores on separate Type I, Type II, and Type III tests.
Questions should be divided in order to sufficiently cover each
topic within the Group.
Certifying programs must provide a paper hand-out or electronic
form of communication to technicians after they have completed their
certification test that contains the following information:
--Which certifying program is providing the testing;
--Contact information for the certifying program;
--The name and contact information of the proctor; and
--When they should expect to receive their score and, if they
passed, their certification card.
Each certifying program must show a method of randomly choosing
which questions will be on the tests. Multiple versions of the test
must be used during each testing event. Test answer sheets must
include the name and address of the applicant, the name and address
of the certifying program, and the date and location at which the
test was administered.
Training material accompanying mail-in Type I tests must not
include sample test questions mimicking the language of the
certification test. All mail-in material will be subject to review
by EPA.
Certifying programs may charge individuals reasonable fees for
the administration of the tests. EPA will publish a list of all
approved certifying programs.
b. Proctoring. A certifying program for Type I (if in-person),
Type II, Type III, and Universal technicians must designate at least
one proctor registered for every 50 people taking tests at the same
time at a given site.
The certification test for Type I (if taken as part of a
Universal certification), Type II, Type III, and Universal
technicians is a closed-book exam. The proctors must ensure that the
applicants for certification do not use any notes or training
materials during testing. Desks or work space must be placed in a
way that discourages cheating. The space and physical facilities are
to be conducive to continuous surveillance by the proctors and
monitors during testing.
The proctor may not receive any benefit from the outcome of the
testing other than a fee for proctoring. Proctors cannot know in
advance which questions are on the tests they are proctoring.
Proctors are required to verify the identity of individuals
taking the test by examining photo identification. Acceptable forms
of identification include but are not limited to drivers' licenses,
government identification cards, passports, and military
identification.
Certifying programs for Type I technicians using the mail-in
format, must take sufficient measures at the test site to ensure
that tests are completed honestly by each technician. Each test for
Type I certification must provide a means of verifying the
identification of the individual taking the test. Acceptable forms
of identification include but are not limited to drivers' licenses
and passports.
c. Test Security. A certifying program must demonstrate the
ability to ensure the confidentiality and security of the test
questions and answer keys through strict accountability procedures.
An organization interested in developing a technician certification
program will be required to describe these test security procedures
to EPA.
After the completion of a test, proctors must collect all test
forms, answer sheets, scratch paper and notes. These items are to be
placed in a sealed envelope.
d. Test Content. All Type I, Type II and Type III, certification
tests will include 25 questions from Group I and 25 questions from
Group II. Universal certification tests will include 25 questions
from Group I and 75 questions from Group II (with 25 from each of
the three sector-specific areas).
Group I will ask questions in the following areas:
1. Environmental impact of CFCs, HCFCs, and substitute refrigerants
2. Laws and regulations
3. Changing industry outlook
Group II will ask questions covering sector-specific (i.e., Type
I, Type II, Type III) issues in the following areas:
4. Leak detection
5. Recovery Techniques
6. Safety
7. Shipping
8. Disposal
e. Grading. Tests must be graded objectively. Certifying
programs must inform the applicant of their test results no later
than 30 days from the date of the test. Type I certifying programs
using the mail-in format must notify the applicants of their test
results no later than 30 days from the date the certifying programs
received the completed test and any required documentation.
The passing score for the closed-book Type I, Type II, Type III
and Universal certification test is 70 percent. The passing score
for Type I certification tests using the mail-in format is 84
percent.
f. Proof of Certification. Certifying programs must issue a
standard wallet-sized identification card no later than 30 days from
the date of the test. Type I certifying programs using mail-in
formats must issue cards to certified technicians no later than 30
days from the date the certifying program receives the completed
test and any required documentation.
Each wallet-sized identification card must include, at a
minimum, the name of the certifying program including the date the
certifying program received EPA approval, the name of the person
certified, the type of certification, a unique number for the
certified person that does not include a technician's social
security number, and the following text:
[name of person] has successfully passed a [Type I, Type II,
Type III and/or Universal--as appropriate] exam on how to
responsibly handle refrigerants as required by EPA's National
Recycling and Emissions Reduction Program.
g. Recordkeeping and Reporting Requirements. Certifying programs
must maintain records of the names and addresses of all individuals
taking the tests, the scores of all certification tests
administered, and the dates and locations of all tests administered.
These records must be maintained indefinitely, unless transferred to
another certifying program or EPA.
EPA must receive an activity report from all approved certifying
programs by every January 30 and July 30, which covers the previous
six months of certifications. The first report must be submitted
following the first full six-month period for which the program has
been approved by EPA. This report includes the pass/fail rate. If
the certifying program believes a test bank question needs to be
modified, information about that question should also be included.
Approved certifying programs will receive a letter of approval
from EPA. Each testing center must display a copy of that letter at
their place of business.
Approved technician certification programs that voluntarily plan
to stop providing the certification test must forward all records
required by this appendix and Sec. 82.161 to another program
currently approved by EPA in accordance with this appendix and with
Sec. 82.161. Approved technician certification programs that
receive records of certified technicians from a program that no
longer offers the certification test, and the program that is
voluntarily withdrawing from being a technician certification
program must inform EPA at the address listed in Sec. 82.160 within
30 days of receiving or transferring these records. The notification
must include the name and address of the program to which the
records have been transferred. If another currently approved program
willing to accept the records cannot be located, these records must
be submitted to EPA at the address listed at Sec. 82.160.
Technician certification programs that have had their
certification revoked in accordance with Sec. 82.169 must forward
all records required by this appendix and Sec. 82.161 to EPA at the
address listed in Sec. 82.160. Failure to do so is a violation of
40 CFR part 82, subpart F.
h. Additional Requirements. EPA may periodically inspect testing
sites to ensure compliance with EPA regulations. If testing center
discrepancies are found, they must be corrected within a specified
time period. If discrepancies are not corrected, EPA may suspend or
revoke the certifying program's approval. The inspections will
include but are not limited to a review of the certifying program's
provisions for test security, the availability of space and
facilities to conduct the administrative requirements and ensure
[[Page 82392]]
the security of the tests, the availability of adequate testing
facilities and spacing of the applicants during testing, a review of
the proper procedures regarding accountability, and that there is no
evidence of misconduct on the part of the certifying programs, their
representatives and proctors, or the applicants for certification.
If the certifying programs offer training or provide review
materials to the applicants, these endeavors are to be considered
completely separate from the administration of the certification
test.
0
19. Amend subpart F by adding appendix E to read as follows:
Appendix E to Subpart F of Part 82--Test Procedure for Leaks From
Containers Holding Two Pounds or Less of Refrigerant for Use in an MVAC
This appendix is based on the California Air Resources Board
(CARB) standard TP-503: Test Procedure for Leaks from Small Cans of
Automotive Refrigerant, as amended on January 5, 2010; and CARB
standard BP-A1: Balance Protocol for Gravimetric Determination of
Sample Weights using a Precision Balance, as amended January 5,
2010.
Section 1. Applicability
This test procedure is used by manufacturers of containers
holding two pounds or less of refrigerant for use in a motor vehicle
air conditioner (MVAC) to determine the leakage rate of small
containers of automotive refrigerant that are subject to the
requirements of 40 CFR part 82, subpart F. Specifically, this test
procedure will specify the equipment, procedures, and calculations
to determine if a container holding two pounds or less of
refrigerant for use in an MVAC complies with the leakage rate
specified in Sec. 82.154(c)(2)(ii). All terms in this appendix will
follow the definitions in Sec. 82.152 unless otherwise defined in
this appendix.
All containers holding two pounds or less of refrigerant for use
in an MVAC must comply with other applicable codes and regulations
such as local, state, or Federal safety codes and regulations.
This test procedure involves the use of materials under pressure
and operations and should only be used by or under the supervision
of those familiar and experienced in the use of such materials and
operations. Appropriate safety precautions should be observed at all
times while performing this test procedure.
Section 2. Principle and Summary of Test Procedure
This procedure is used to determine the leakage rate of
containers holding two pounds or less of refrigerant for use in an
MVAC (small cans). Testing will involve subjecting both full and
partially empty cans in both upright and inverted positions at two
temperatures: 73[emsp14][deg]F and 130[emsp14][deg]F.
Thirty small cans are tested under each condition for a total of
240 small cans tested. Small cans are brought to temperature
stability, weighed, then stored for 30 days under specified
conditions of temperature, orientation, and state of fill, then re-
weighed. Leakage rate (grams/year) is estimated by (weight loss in
grams) x 365/(days duration). The leakage rate is then compared to a
standard of 3.00 grams/year to determine if a given small can
complies with the leakage rate specified in Sec. 82.154(c)(2)(ii).
Section 3. Biases and Interferences
3.1 Contaminants on the operator's hands can affect the weight
of the small can and the ability of the small can to absorb
moisture. To avoid contamination of the small can, the balance
operator should wear gloves while handling the small cans.
3.2 Weight determinations can be interfered with by moisture
condensing on the small can and by thermal currents generated by
temperature differences between the small can and the room
temperature. The small cans cool during discharge and could cause
condensation. For these reasons, small cans must be equilibrated to
balance room temperature for at least four hours before weighing.
3.3 Variations in the temperature, pressure, and humidity of the
ambient air will cause variations in the buoyancy of the small can.
These variations should typically be less than 25 mg for a small
can. If the small can is not leaking at all, then the uncorrected
weight changes will be within the range of 0 25 mg,
which is about ten percent of the 247 mg loss expected after thirty
days for a can leaking at 3 g/yr. In that case buoyancy corrections
can be omitted. If the absolute value of the uncorrected weight
change exceeds 25 mg, then all calculations must be made using
weights corrected for buoyancy based on the temperature, pressure,
and humidity of the weighing room.
3.4 Some electronic balances are sensitive to the effects of
small static charges. The small can should be placed directly on the
balance pan, ensuring metal to metal contact. If the balance pan is
not grounded, the small can and balance pan should be statically
discharged before weighing.
Section 4. Sensitivity and Range
The mass of a full small can could range from roughly 50 g to
1000 g depending on the container capacity. A top loading balance,
capable of a maximum weight measurement of not less than 1,000 g and
having a minimum readability of 0.001 g, reproducibility and
linearity of 0.002 g, must be used to perform mass
measurements.
Section 5. Equipment
5.1 A top loading balance that meets the requirements of Section
4 above.
5.2 A NIST traceable working standard mass for balance
calibration. A NIST traceable working standard mass for a balance
linearity check. A reference mass to serve as a ``blank'' small can.
5.3 An enclosure capable of controlling the internal air
temperature from 73[emsp14][deg]F 5[emsp14][deg]F, and
an enclosure capable of controlling the internal air temperature to
130[emsp14][deg]F 5[emsp14][deg]F.
5.4 A temperature instrument capable of measuring the internal
temperature of the temperature conditioning enclosures and the
balance room with a sensitivity of 2[emsp14][deg]F.
5.5 A barometric pressure instrument capable of measuring
atmospheric pressure at the location of the balance to within 0.02 inches of mercury.
5.6 A relative humidity measuring instrument capable of
measuring the relative humidity (RH) at the location of the balance
with a sensitivity of 2 percent RH.
5.7 A hose with appropriate fitting for dispensing refrigerant
from the small can to a recovery machine.
5.8 A refrigerant recovery machine to collect the discharged
refrigerant from small cans being tested.
Section 6. Calibration Procedures
6.1 Calibrations are applied to the balance and to the support
equipment such as temperature, humidity, and pressure monitoring
equipment. Procedures for calibration are not spelled out here.
General calibration principals for the support equipment and the
balance are described in Section 11, Quality Assurance/Quality
Control. Detailed calibration procedures for measurements made using
the balance are contained in Attachment A: ``Balance Protocol for
Gravimetric Determination of Sample Weights using a Precision
Balance.''
Section 7. Small Can Preparation
7.1 Receive a batch of 240 small cans of one design to be
tested. These may include several SKUs from different manufacturers
if the container and valve combination are the same.
7.2 Clean small cans with Alkanox solution or equivalent and dry
with a lint free towel.
7.3 Confirm that the sample ID sticker on the small can matches
the sample ID on the chain of custody forms.
7.4 Select a reference mass similar to the weight of a full
small can. If multiple sets of similar sized small cans are being
tested, only one reference mass is needed; it can be used with all
sets. Store the reference mass in the balance area.
7.5 Evacuate the contents of one half of the small cans (120
cans) into the refrigerant recovery machine using normal DIY
dispensing procedures until each small can is approximately half
full.
7.6 Select a reference mass similar to the weight of the half-
full small can. If multiple sets of similar size small cans are
being tested, only one reference mass is needed; it can be used with
all sets. Store the reference mass in the balance area.
Section 8. Small Can Weighing
Weighing cans on the balance is done in accordance with
Attachment A to this appendix. Attachment A describes how to conduct
weight determinations including appropriate calibration and QC data.
This section, ``Small Can Weighing,'' describes the overall process,
not the details of how to use the balance.
Initial Weights
8.1 Put on gloves. Check the small cans for contamination.
8.2 Place the 240 small cans into a location where they can
equilibrate to balance room temperature. Record the small can test
IDs and the equilibration start time
[[Page 82393]]
on the Small Can Test Data Forms available on EPA's Web site in sets
of thirty, one form for each of the eight test conditions.
8.3 Let cans equilibrate for at least four hours.
8.4 Weigh the set of 240 small cans and the reference weights
using Attachment A and log the results to the Balance Weighing Log
Form available on EPA's Web site.
8.5 Transfer data from the Balance Weighing Log Form to the
Small Can Test Data Form in sets of 30, one set for each of the
eight conditions to be tested.
Thirty-Day Soak
8.6 Place each set of 30 small cans into the appropriate
orientation and temperature for soaking:
30 full small cans--73[emsp14][deg]F, upright
30 full small cans--73[emsp14][deg]F, inverted
30 full small cans--130[emsp14][deg]F, upright
30 full small cans--130[emsp14][deg]F, inverted
30 half-full small cans--73[emsp14][deg]F, upright
30 half-full small cans--73[emsp14][deg]F, inverted
30 half-full small cans--130[emsp14][deg]F, upright
30 half-full small cans--130[emsp14][deg]F, inverted
8.7 Soak the small cans for 30 days undisturbed.
Final Weighing
8.8 Place the 240 small cans into a location where they can
equilibrate to balance room temperature.
8.9 Let the small cans equilibrate for at least four hours.
8.10 Weigh the set of 240 small cans, the reference weights, and
any additional sets of small cans using Attachment A.
8.11 Transfer data from the Balance Weighing Log Form to the
corresponding Small Can Test Data Forms.
Section 9. Calculations
Corrections for Buoyancy
The calculations in this section are described in terms of
``weight.'' Mass is a property of the small can, whereas weight is a
force due to the effects of buoyancy and gravity. Procedures for
correcting the effect of buoyancy are given in Attachment B of this
appendix. Ignoring buoyancy, i.e., using weight data uncorrected for
buoyancy effects, is acceptable for a thirty day test if the
absolute magnitude of the weight change is less than 25 mg. If the
uncorrected weight change exceeds 25 mg for any small can, then
correct all small can weights for buoyancy using the procedures in
Attachment B before performing the calculations described below.
Calculation of Leak Rate
The emission rate in grams/day for each small can is calculated
by subtracting the final weight from the initial weight and then
dividing the weight difference by the time difference measured in
days to the nearest hour (nearest 1/24 of a day). The emission rate
in g/day is multiplied by 365 to determine emission rate in grams/
yr. If the annual emission rate for any small can exceeds the entire
small can contents, then the annual emission rate for that small can
is adjusted to equal the entire small can contents/year (e.g., about
350 g/yr for a 12 ounce small can). The annual emission rate for the
purpose of the test is calculated by averaging the 240 individual
adjusted annual emission rates and rounding to two decimal places.
The cans fail the test if the adjusted annual emission rate averaged
over 240 cans is greater than 3.00 g/yr. The calculations are
described below.
Loss rate for each small can
Eidaily = (Wifinal - Wiinitial)/
(Difinal - Diinitial) g/day
Eiannual = 365 x Eidaily g/year
Eiadjusted = Minimum of (Eiadjusted, Ci/year)
g/yr
Where,
Ei = emission rate
Wifinal = weight of can i after soaking (grams)
Wiinitial = weight of can I before soaking (grams)
Difinal = date/time of final weight measurements (days)
Diinitial = date/time of initial weight measurements
(days)
Ci = original factory mass of refrigerant in can i
Note: Date/Times are measured in days. Microsoft Excel stores
dates and times in days, and the calculations can be made directly
in Excel. If calculations are made manually, calculate serial days
to the nearest hour for each date and time as follows:
D = Julday + Hour/24
Where,
Julday = serial day of the year: Jan 1 = 1, Jan 31 = 31, Feb 1 = 32,
etc.
Hour = hour of day using 24-hour clock, 0 to 23
Calculate the average loss rate for the 240 small cans as
follows:
Emean = [Sum (Eadjustedi), i = 1 to 240]/240
Section 10. Recordkeeping
During small can weighing, record the small can weights and
date/times on the Balance Weighing Log Form. After each weighing
session, transfer the measured weights and date/times from the
Balance Weighing Log Form to the Small Can Test Data Form.
At the end of the test, complete the calculations described in
Section 9, Calculations, and record the results on the Small Can
Test Data Form.
Section 11. Quality Assurance/Quality Control
11.1 All temperature, pressure, and humidity instruments should
be calibrated annually against NIST traceable laboratory standards.
The main purpose of the NIST traceable calibration is to establish
the absolute accuracy of the device. The instruments should also be
checked periodically such as weekly, monthly, or quarterly against
intermediate standards or against independent instruments. For
example, a thermocouple can be checked weekly against a wall
thermometer. A barometer or pressure gauge can be checked weekly by
adjusting to sea level and comparing with local airport data. The
main purpose of the frequent checks is to verify that the device has
not failed in some way. This is especially important for electronic
devices such as a digital thermometer, but even a liquid filled
thermometer can develop a problem such as a bubble.
11.2 The balance should be serviced and calibrated annually by
an independent balance service company or agency using NIST
traceable reference masses. Servicing verifies accuracy and
linearity, and the maintenance performed helps ensure that a
malfunction does not develop.
11.3 The balance must also be calibrated and its linearity
checked with working standards before and after each weighing
session, or before and after each group of 24 small cans if more
than 24 small cans are weighed in a session. Procedures for
calibrating and using the balance, as well as recording balance
data, are described in the accompanying balance weighing protocol.
These procedures include zero checks, calibration checks, and
reference mass checks. Procedures for calculating quality control
data from those checks are described in Attachment A.
11.4 The small cans are cleaned then handled using gloves to
prevent contamination. All equilibration and soaking must be done in
a dust free area.
Section 12. Balance Protocol for Gravimetric Determination of Sample
Weights Using a Precision Balance
12.1 Scope and application
This Protocol summarizes a set of procedures and tolerances for
weighing objects in the range of 0 to 1,000 g with a resolution of
0.001 g. This protocol only addresses balance operations, it does
not address project requirements for equilibration, sample hold time
limits, sample collection etc.
12.2 Summary of method
The balance is zeroed and calibrated using procedures defined
herein. Object weight determinations are conducted along with
control object weight determinations, zero checks, calibration
checks, sensitivity checks, and replicate weightings in a defined
sequence designed to control and quantitatively characterize
precision and accuracy.
12.3 Definitions
N/A.
12.4 Interferences
Object weights can be affected by temperature and relative
humidity of their environment, air currents, static electricity,
gain and loss of water vapor, gain or loss of and loss of volatile
compounds directly from the sample or from contaminants such as
finger prints, marker ink, and adhesive tape.
Contamination, transfer of material to or from the samples, is
controlled by conducting operations inside a clean area dedicated to
the purpose and having a filtered laminar air flow where possible;
by wearing gloves while handling all samples and related balance
equipment; by using forceps to handle small objects, and by keeping
the balance and all related equipment inside the clean area.
Air currents are controlled by conducting weighing operations
inside a closed chamber or glove box and by allowing the substrates
to reach temperature and relative humidity equilibrium. The chamber
is maintained at 40 percent relative humidity and 25 [deg]C by a
continuous humidity and temperature control system. The temperature
and RH
[[Page 82394]]
conditions are recorded at least once per weighing sessions.
Equilibration times for samples that are particularly sensitive to
humidity or to loss of semi-volatiles species are specified by
project requirements.
Static electric charges on the walls of the balance and the
weighed objects, including samples, controls, and calibration
weights, can significantly affect balance readings. Static is
avoided by the operator ground himself and test objects as described
in the balance manual.
12.5 Personnel health and safety
N/A
12.6 Equipment and supplies
Filtered, temperature and humidity controlled weighing
chamber.
Precision Balance
Plastic forceps
Nylon fabric gloves.
Working calibration weights: ANSI Class 2, 1000g and
500 g
Working sensitivity weight: 50 mg
Reference objects: references are one or more objects
that are typical of the objects to be weighed during a project, but
that are stored permanently inside the balance glove box. Reference
objects are labeled Test1, Test2, Test3, etc.
12.7 Reagents and standard
N/A
12.8 Sample collection, preservation, and storage
N/A. See relevant project requirements and SOPs.
12.9 Quality control
Data quality is controlled by specifying frequencies and
tolerances for Zero, Calibration, Linearity, and Sensitivity checks.
If checks do not meet tolerance criteria, then samples must be re-
weighed. In addition, the procedures specify frequencies for Control
Object Checks.
Data quality is quantitatively characterized using Zero Check,
Calibration Check, and Control Check data. These data are summarized
monthly in statistics and QC charts.
12.10 Calibration and standardization
The absolute accuracy of the balance is established by
calibration against an ANSI Class 2, stainless steel working weight:
1000.000 g 0.0025 g. Linearity is established checking
the midpoint against an ANSI Class 2 stainless steel working weight:
500.000 0.0012 g. Sensitivity is established using and
ANSI Class 2 stainless steel or aluminum working weight: 50 mg.
Precision is checked by periodically checking zero, calibration, and
reference object weights.
12.11 Procedure
12.11.1 Overview of Weighing Sequence
Weighing a series of substrates consists of performing the
following procedures in sequence, while observing the procedures for
handling and the procedures for reading the balance:
1. Initial Adjustment
2. Weigh eight samples
3. Zero Check
4. Weigh eight samples
5. Zero Check
6. Weigh eight samples
7. Calibration Check
8. Return to step 2.
9. If less than 24 cans are weighed, perform a final Calibration
Check at the end of weighing.
This sequence is interrupted and samples are reweighed if QC
check tolerances are not met. Each of these procedures along with
procedures for handling and reading the balance are described below.
The QC tolerances referred to in these procedures are listed in
Table 1.
12.11.2 Handling
1. Never touch samples, weights, balance pans, etc. with bare
hands. Wear powder free gloves to handle the weights, controls, and
samples.
12.11.3 Reading the Balance
1. Close the door. Wait for the balance stabilization light to
come on, and note the reading.
2. Watch the balance reading for 30 sec (use a clock). If the
reading has not changed by more than 0.001 g from the reading noted
in step 1, then record the reading observed at the end of the 30 sec
period.
3. If the reading has drifted more than 0.001 g note the new
balance reading and go to step 2.
4. If the balance reading is flickering back and forth between
two consecutive values choose the value that is displayed more often
than the other.
5. If the balance reading is flickering equally back and forth
between two consecutive values choose the higher value.
12.11.4 Initial Adjustment
1. Empty the sample pan Close the door. Select Range 1000 g
2. Wait for a stable reading
3. Record the reading with QC code IZC (initial zero check)
4. Press the Tare button
5. Record the reading in the logbook with QC code IZA (initial zero
adjust)
6. Place the 1,000 g working calibration weight on the balance pan
7. Wait for a stable reading.
8. Record the reading with QC code ICC (initial cal check)
9. Press the Calibrate button
10. Record the reading with QC code ICA (initial cal adjust)
11. Remove the calibration weight.
12. Wait for a stable reading.
13. Record the reading with QC code IZC.
14. If the zero reading exceeds 0.002 g, go to step 4.
15. Place the 500 g calibration weight on the balance pan
16. After a stable reading, record the reading with QC code C500. Do
not adjust the balance.
17. Add the 0.050 g weight to 500 g weight on the balance pan.
18. After a stable reading, record the reading with QC code C0.05.
Do not adjust the balance.
19. Weigh reference object TEST1, record reading with QC code T1.
20. Weigh the reference object TEST2, TEST3, etc. that is similar in
weight to the samples that you will be weighing. Record with QC code
T2, T3, etc.
12.11.5 Zero Check
1. Empty the sample pan. Close the door.
2. Wait for a stable reading
3. Record the reading with QC code ZC
4. If the ZC reading is less than or equal to the zero adjustment
tolerance shown in Table 1, return to weighing and do not adjust the
zero. If the ZC reading exceeded the zero adjustment tolerance,
proceed with steps 5 through 7.
5. Press the Tare button
6. Record the reading in the logbook with QC code ZA.
7. If the ZC reading exceeded the zero re-weigh tolerance, change
the QC code recorded in step 3 from ZC to FZC. Then enter a QC code
of FZ into the QC code column of all samples weights obtained after
the last valid zero check. Re- weigh all of those samples, recording
new data in new rows of the logbook.
12.11.6 Calibration Check
1. First, follow procedures for Zero Check. If the ZC was within
tolerance, tare the balance anyway (i.e., follow steps 5 and 6 of
the Zero Check method)
2. Place the 1,000 g working calibration weight on the sample pan,
wait for a stable reading.
3. Record the reading with QC code C1000
4. If the C1000 reading is less than or equal to the calibration
adjustment tolerances, skip steps 5 through 8 and proceed to step 9.
Do not adjust the calibration.
5. If the C100 reading exceeded the calibration adjust tolerance,
press the Calibrate button.
6. Record the reading in the logbook with QC code CA
7. Perform a Zero Check (follow the Zero Check method)
8. If the C1000 reading exceeded the calibration re-weigh tolerance,
change the code recorded in step 3 from C1000 to FC1000. Enter FC
into the QC column for all sample weights obtained after the last
valid calibration check. Re-weigh all of those samples, recording
new data in new rows of the logbook.
12.11.7 Replicate Weighing Check
1. This protocol does not include reweigh samples to obtain
replicates. The projects for which this protocol is intended already
include procedures multiple weightings of each sample.
Table 1--QC Tolerances and Frequencies for Balance Protocol
------------------------------------------------------------------------
------------------------------------------------------------------------
Reading Tolerance:
------------------------------------------------------------------------
0.001 g, stable for 30 sec..............................................
------------------------------------------------------------------------
Adjustment Tolerances:
------------------------------------------------------------------------
Zero:..................................... -0.003 to +0.003 g.
Calibration:.............................. 999.997 to 1000.003 g.
Controls:................................. none.
Replicates:............................... none.
------------------------------------------------------------------------
Re-weigh Tolerances:
------------------------------------------------------------------------
Zero:..................................... -0.005 to +0.005 g.
Calibration:.............................. 999.995 to 1000.005 g.
Controls:................................. none.
Replicates:............................... none.
------------------------------------------------------------------------
[[Page 82395]]
Reference Objects:
------------------------------------------------------------------------
Test 1--A reference object weighing about 400 g.........................
Test 2--A reference object weighing about 200 g.........................
Test 3--A reference object weighing about 700 g.........................
------------------------------------------------------------------------
QC Frequencies:
------------------------------------------------------------------------
Zero Checks:.............................. once per 8 samples.
Calibration Checks:....................... once per 24 samples.
Repeat weighings:......................... none (test method includes
replicate determinations).
Control objects:.......................... once per weighing session.
------------------------------------------------------------------------
12.12 Data analysis and calculations
For Zero Checks, let Z equal the recorded Zero Check value. For
control checks let T1, T2, etc. equal the recorded value for control
object Test 1, Test 2, etc. For Calibration Checks, let C1000 equal
C1000 reading minus 1000, M = C500--500, S = .C.050--C500--.050. For
Replicate Checks, let D equal the loss that occurred between the
first and second measurements. In summary:
T1 = T1
T2 = T2
T3 = T3
Z = ZC--0
C = C1000--1000
M = C500--500
G = C050--C500--.050
Tabulate the mean and standard deviation for each of the
following: Z, C, M, G. T1, T2, T3. Depending on the number of
operators using the balance and the number of protocols in use,
analyze the data by subcategories to determine the effects of
balance operator and protocol. Each of these standard deviations,
SZ, SC, etc. is an estimate of the precision
of single weight measurement.
For Z, C, M, and G, check the mean value for statistical
difference from 0. If the means are statistically different than
zero, troubleshooting to eliminate bias may be called for. For Z, C,
M, G, T1, T2, T3, check that the standard deviations are all
comparable. If there are systematic differences, then
troubleshooting to eliminate the problem may be called for.
Note that the precision of a weight gain, involves two weight
determinations, and therefore is larger than S by a factor of
sqrt(2). On the other hand replicate weighings improves the
precision of the determinations by a factor of sqrt(N). If N = 2,
i.e., duplicates, then the factors cancel each other.
To estimate the overall uncertainty in a weight determination, a
conservative estimate might be to combine the imprecision
contributed by the zero with the imprecision contributed by the
calibration.
U = Sqrt(SZ\2\ + SC\2\)
The uncertainty in a weight gain from N replicates is then given
by:
Ugain = Sqrt(2) x Sqrt(SZ\2\ +
SC\2\)/Sqrt(N)
But due to the balance adjustment and reweigh tolerances, we
expect SZ to approximately equal SC, to
approximately equal SM, etc. tolerances, so that the
equation above becomes:
Ugain = 2 x S/Sqrt(N)
Where S is any individual standard deviation; or better, a pooled
standard deviation.
12.13 Method performance
The data necessary to characterize the accuracy and precision of
this method are still being collected. The method is used primarily
to weigh objects before and after a period of soaking to determine
weight loss by subtraction. Given the reweigh tolerances, we expect
that the precision of weight gain determinations will be on the
order of 0.006 g at the 1-sigma level. Bias in the weight gain
determination, due to inaccuracy of the calibration weight and to
fixed non-linearity of the balance response is on the order 0.005
percent of the gain.
12.14 Pollution prevention
When discharging half the can contents during can preparation,
do not vent the contents of the small can to the atmosphere. Use an
automotive recovery machine to transfer small can contest to a
recovery cylinder.
12.15 Waste management
Dispose of the contents of the recycle cylinder through a
service that consolidates waste for shipment to EPA certified
facilities for reclaiming or destruction.
Section 13. Compensation of Weight Data for Buoyancy and Gravity
Effects
13.1 Gravity
Variations in gravity are important only when weighing objects
under different gravitational fields, i.e., at different locations
or at different heights. Since the balance procedures calibrate the
balance against a known mass (the calibration ``weight'') at the
same location where sample objects are weighed, there is no need to
correct for location. Although both the sample and the calibration
weight are used at the same location, there will be a difference in
the height of the center of gravity of the sample object (small can)
and the center of gravity of the reference mass (calibration
weight). However, this difference in height is maintained during
both the initial weights and final weights, affecting the initial
and final weights by the same amount, and affecting the scale of the
weight difference by only a few ppm. In any event, the magnitude of
this correction is on the order of 0.3 ug per kg per mm of height
difference. A difference on the order of 100 mm would thus yield a
weight difference of about 0.03 mg, which is insignificant compared
to our balance resolution which is 0.001 g or 1 mg.
Based on the discussion above, no corrections for gravity are
necessary when determining weight changes in small cans.
13.2 Buoyancy
Within a weighing session, the difference in density between the
sample object and the calibration weight will cause the sample
object weight value to differ from its mass value due to buoyancy.
For a 1-liter object in air at 20 [deg]C and at 1 atm, the buoyant
force is about 1.2 g. The volume of a 1 kg object with a density of
8 g/cm\3\ (e.g., a calibration weight), is about 0.125 liters, and
the buoyancy force is about 0.15 g. Variations in air density will
affect both of these values in proportion. The net value being
affected by variations in air density is thus on the order of 1.2 -
0.15 = 1.05 g. Air density can vary up or down by 2 percent or more
due to variations in barometric pressure, temperature, and humidity.
The buoyancy force will then vary up or down by 0.02 g, or 20 mg.
This is significant compared to the weight change expected after one
week for a can leaking at 3 grams per year, which is 57 mg.
Based on the discussion above, buoyancy corrections must be
made.
Variables measured or calculated:
Vcan = volume of can (cm\3\). Estimate to within 10
percent by measuring the can dimensions or by water displacement.
Error in the can volume will cause an error in the absolute amount
of the buoyancy force, but will have only a small effect on the
change in buoyancy force from day to day.
Wcan = nominal weight of a can (g), used to calculate the
nominal density of the can.
[rho]can = nominal density of a small can (g/cm\3\). The
nominal values can be applied to corrections for all cans. It is not
necessary to calculate a more exact density for each can. Calculate
once for a full can and once for a half full can as follows:
[rho]can = Wcan /Vcan
T = Temperature in balance chamber (degrees Celsius).
RH = Relative humidity in balance chamber (expressed a number
between 0 and 100).
Pbaro = Barometric pressure in balance chamber
(millibar). Use actual pressure, NOT pressure adjusted to sea level.
[rho]air = density of air in the balance chamber (g/
cm\3\). Calculate using the following approximation:
[rho]air = 0.001*[0.348444*Pbaro-(RH/100) x
(0.252 x T-2.0582)]/(T + 273.15)
[rho]ref = the reference density of the calibration
weight (g/cm\3\). Should be 8.0 g/cm\3\.
Equation to correct for buoyancy: Wcorrected =
Wreading x (1--[rho]air/[rho]ref)/
(1--[rho]air/[rho]can)
[FR Doc. 2016-24215 Filed 11-17-16; 8:45 am]
BILLING CODE 6560-50-P