Approval of Air Quality Implementation Plans; California; South Coast; Attainment Plan for 1997 8-Hour Ozone Standard, 57872-57896 [2011-23659]
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ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R09–OAR–2011–0622; FRL–9464–8]
Approval of Air Quality Implementation
Plans; California; South Coast;
Attainment Plan for 1997 8-Hour Ozone
Standard
Environmental Protection
Agency (EPA).
ACTION: Proposed rule.
AGENCY:
EPA is proposing to approve
state implementation plan (SIP)
revisions submitted by California to
provide for attainment of the 1997 8hour ozone national ambient air quality
standards in the Los Angeles-South
Coast Area (South Coast). These SIP
revisions are the South Coast 2007 Air
Quality Management Plan (South Coast
2007 AQMP) (revised 2011) and South
Coast-related portions of the 2007 State
Strategy (revised 2009 and 2011). EPA is
proposing to approve the emissions
inventories, reasonably available control
measures, provisions for transportation
control strategies and measures,
reasonable further progress (RFP) and
attainment demonstrations,
transportation conformity motor vehicle
emissions budgets for all RFP milestone
years and the attainment year,
contingency measures for failure to
make RFP or attain, and Clean Air Act
section 182(e)(5) new technologies
provisions and associated commitment
to adopt contingency measures. EPA is
also proposing to approve commitments
to measures and reductions by the
South Coast Air Quality Management
District and the California Air Resources
Board. Simultaneously and in the
alternative, EPA is proposing to
disapprove the SIP with respect to
certain provisions for transportation
control strategies and measures pending
resolution of petitions filed before the
9th Circuit U.S. Court of Appeals in
Association of Irritated Residents v.
EPA, 632 F.3d 584 (9th Cir. 2011).
DATES: Any comments must be
submitted by October 17, 2011.
ADDRESSES: Submit comments,
identified by docket number EPA–R09–
OAR–2011–0622, by one of the
following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the on-line
instructions.
• E-mail: tax.wienke@epa.gov.
• Mail or deliver: Marty Robin, Office
of Air Planning (AIR–2), U.S.
Environmental Protection Agency
Region IX, 75 Hawthorne Street, San
Francisco, CA 94105.
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SUMMARY:
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Instructions: All comments will be
included in the public docket without
change and may be made available
online at https://www.regulations.gov,
including any personal information
provided, unless the comment includes
Confidential Business Information (CBI)
or other information whose disclosure is
restricted by statute. Information that
you consider CBI or otherwise protected
should be clearly identified as such and
should not be submitted through https://
www.regulations.gov or e-mail. The
https://www.regulations.gov Web site is
an ‘‘anonymous access’’ system, and
EPA will not know your identity or
contact information unless you provide
it in the body of your comment. If you
send e-mail directly to EPA, your e-mail
address will be automatically captured
and included as part of the public
comment. If EPA cannot read your
comments due to technical difficulties
and cannot contact you for clarification,
EPA may not be able to consider your
comment.
Docket: The index to the docket for
this action is available electronically on
the https://www.regulations.gov Web site
and in hard copy at EPA Region IX, 75
Hawthorne Street, San Francisco,
California, 94105. While all documents
in the docket are listed in the index,
some information may be publicly
available only at the hard copy location
(e.g., copyrighted material), and some
may not be publicly available at either
location (e.g., CBI). To inspect the hard
copy materials, please schedule an
appointment during normal business
hours with the contact listed in the FOR
FURTHER INFORMATION CONTACT section
below.
Copies of the SIP materials are also
available for inspection at the following
locations:
• California Air Resources Board,
1001 I Street, Sacramento, California
95812, and
• South Coast Air Quality
Management District, 21865 E. Copley
Drive, Diamond Bar, California 91765.
The SIP materials are also electronically
available at: https://aqmd.gov/aqmp/
07aqmp/ and https://
www.arb.ca.gov/planning/sip/sip.htm.
FOR FURTHER INFORMATION CONTACT:
Wienke Tax, Air Planning Office (AIR–
2), U.S. Environmental Protection
Agency, Region IX, (415) 947–4192,
tax.wienke@epa.gov.
SUPPLEMENTARY INFORMATION:
Throughout this document, ‘‘we,’’ ‘‘us’’
and ‘‘our’’ refer to EPA.
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Table of Contents
I. The 8-Hour Ozone National Ambient Air
Quality Standard (NAAQS) and the
South Coast Nonattainment Area
A. Background on the 8-Hour Ozone
NAAQS
B. The South Coast 8-Hour Ozone
Nonattainment Area
II. CAA and Regulatory Requirements for
Ozone Nonattainment SIPs
III. California’s State Implementation Plan
Submittals To Address 8-Hour Ozone
Nonattainment in the South Coast
Nonattainment Area
A. California’s SIP Submittals
B. CAA Procedural and Administrative
Requirements for SIP Submissions
IV. Review of the South Coast 2007 AQMP
and the South Coast Portion of the
Revised 2007 State Strategy
A. Emission Inventories
B. Reasonably Available Control Measures
(RACM) Demonstration and Control
Strategy
C. Attainment Demonstration
D. Reasonable Further Progress
Demonstration
E. Transportation Control Strategies and
Transportation Control Measures and
Vehicle Miles Travelled Offset To Offset
Emissions Increases From VMT
Increases, To Provide for RFP and
Attainment
F. Contingency Measures
G. Motor Vehicle Emissions Budgets for
Transportation Conformity
H. Other Clean Air Act Requirements
Applicable to Extreme Ozone
Nonattainment Areas
V. EPA’s Proposed Actions
VI. Statutory and Executive Order Reviews
I. The 8-Hour Ozone National Ambient
Air Quality Standard (NAAQS) and the
South Coast Nonattainment Area
A. Background on the 8-Hour Ozone
NAAQS
Ground-level ozone is formed when
oxides of nitrogen (NOX) and volatile
organic compounds (VOC) react in the
presence of sunlight.1 These two
pollutants, referred to as ozone
precursors, are emitted by many types of
pollution sources, including on- and offroad motor vehicles and engines, power
plants and industrial facilities, and
smaller area sources such as lawn and
garden equipment and paints.
Scientific evidence indicates that
adverse public health effects occur
following exposure to ozone,
particularly in children and adults with
lung disease. Breathing air containing
ozone can reduce lung function and
inflame airways, which can increase
respiratory symptoms and aggravate
asthma or other lung diseases. Ozone
1 California plans sometimes use the term
Reactive Organic Gases (ROG) for VOC. These terms
are essentially synonymous. For simplicity, we use
the term VOC herein to mean either VOC or ROG.
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exposure also has been associated with
increased susceptibility to respiratory
infections, medication use, doctor visits,
and emergency department visits and
hospital admissions for individuals with
lung disease. Ozone exposure also
increases the risk of premature death
from heart or lung disease. Children are
at increased risk from exposure to ozone
because their lungs are still developing
and they are more likely to be active
outdoors, which increases their
exposure. See ‘‘Fact Sheet, Proposal To
Revise the National Ambient Air
Quality Standards for Ozone,’’ January
6, 2010 and 75 FR 2938 (January 19,
2010).
In 1979, under section 109 of the
CAA, EPA established primary and
secondary national ambient air quality
standards (NAAQS or standard) for
ozone at 0.12 parts per million (ppm)
averaged over a 1-hour period. See 44
FR 8202 (February 8, 1979).
On July 18, 1997, EPA revised the
primary and secondary NAAQS for
ozone to set the acceptable level of
ozone in the ambient air at 0.08 ppm,
averaged over an 8-hour period. See 62
FR 38856 (July 18, 1997).2 EPA set the
8-hour ozone standard based on
scientific evidence demonstrating that
ozone causes adverse health effects at
lower concentrations and over longer
periods of time than was understood
when the pre-existing 1-hour ozone
standard was set. EPA determined that
the 8-hour standard would be more
protective of human health, especially
children and adults who are active
outdoors, and individuals with a preexisting respiratory disease, such as
asthma.
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B. The South Coast 8-Hour Ozone
Nonattainment Area
Following promulgation of a new or
revised NAAQS, EPA is required by the
Clean Air Act (CAA) to designate areas
throughout the nation as attaining or not
attaining the NAAQS. On April 15,
2004, EPA designated the South Coast
as nonattainment for the 1997 8-hour
ozone standard and classified it as
‘‘severe-17’’ under CAA section
181(a)(1) and 40 CFR 51.903(a), Table 1.
See 69 FR 23858 at 23888–89 (April 30,
2004) and 40 CFR 81.305. The
designations and classifications became
effective on June 15, 2004.
In 2007, California requested that EPA
reclassify the South Coast from ‘‘severe17’’ to ‘‘extreme’’ nonattainment for the
1997 8-hour ozone standard under CAA
2 In March 2008, EPA completed another review
of the primary and secondary ozone standards and
tightened them further by lowering the level for
both to 0.075 ppm. 73 FR 16436 (March 27, 2008).
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section 181(b)(3).3 We granted
California’s request on May 5, 2010 and
reclassified the South Coast to extreme
nonattainment for the 1997 8-hour
ozone standard effective June 4, 2010.
See 75 FR 24409. The South Coast 2007
AQMP was developed to address the
extreme area planning requirements for
the 1997 8-hour ozone standard in the
CAA and EPA’s implementing
regulations and thus California did not
need to make additional submittals in
response to this reclassification.
The South Coast 8-hour ozone
nonattainment area is home to about 17
million people, has a diverse economic
base, and contains one of the highestvolume port areas in the world. For a
precise description of the geographic
boundaries of the South Coast 8-hour
ozone nonattainment area, see 40 CFR
81.305. The local air district with
primary responsibility for developing a
plan to attain the 1997 8-hour ozone
NAAQS in this area is the South Coast
Air Quality Management District
(District or SCAQMD).
Ambient 8-hour ozone levels in the
South Coast are well above the 1997 8hour ozone NAAQS. The maximum
design value for the area, based on
monitored readings at the Crestline
monitor, is 0.112 ppm for the 2008–
2010 period.4
II. CAA and Regulatory Requirements
for Ozone Nonattainment SIPs
States must implement the 1997 8hour ozone standard under Title 1, Part
D of the CAA, which includes section
172, ‘‘Nonattainment plan provisions,’’
and subpart 2, ‘‘Additional Provisions
for Ozone Nonattainment Areas’’
(sections 181–185).
In order to assist states in developing
effective plans to address their ozone
nonattainment problem, EPA issued the
8-hour ozone implementation rule. This
rule was finalized in two phases. The
first phase of the rule addresses
classifications for the 1997 8-hour ozone
standard, applicable attainment dates
for the various classifications, and the
3 See SCAQMD Governing Board Resolution No.
07–9 (June 1, 2007), p. 12; CARB Resolution No.
07–41 (September 27, 2007), p. 8; and letter, James
Goldstene, Executive Officer, CARB to Wayne
Nastri, Regional Administrator, EPA Region 9,
November 28, 2007.
4 See EPA, Air Quality System Quick Look Report
dated April 14, 2011 in the docket for today’s
action. A design value is an ambient concentration
calculated using a specific methodology to evaluate
monitored air quality data and is used to determine
whether an area’s air quality is meeting a NAAQS.
The methodology for calculating design values for
the 8-hour ozone NAAQS is found in 40 CFR part
50, Appendix I. This value is preliminary because
while 2008 and 2009 data are complete, validated,
and certified, 2010 data have not yet been certified
by the District.
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timing of emissions reductions needed
for attainment. See 69 FR 23951 (April
30, 2004). The second phase addresses
SIP submittal dates and the
requirements for reasonably available
control technology and measures (RACT
and RACM), reasonable further progress
(RFP), modeling and attainment
demonstrations, contingency measures,
and new source review. See 70 FR
71612 (November 29, 2005). The rule is
codified at 40 CFR part 51, subpart X.5
We discuss each of these CAA and
regulatory requirements for 8-hour
ozone nonattainment plans in more
detail below.
III. California’s State Implementation
Plan Submittals To Address 8-Hour
Ozone Nonattainment in the South
Coast Nonattainment Area
A. California’s SIP Submittals
Designation of an area as
nonattainment starts the process for a
state to develop and submit to EPA a
State implementation plan (SIP)
providing for attainment of the NAAQS
under title 1, part D of the CAA. For 8hour ozone areas designated as
nonattainment effective June 15, 2004,
this attainment SIP was due by June 15,
2007. See CAA 172(b) and 40 CFR
51.908(a) and 51.910.
California has made five SIP
submittals to address the CAA’s
planning requirements for attaining the
1997 8-hour ozone standard in the
South Coast nonattainment area. We
refer to these submittals collectively as
‘‘the South Coast 2007 8-Hour Ozone
SIP’’ or ‘‘the South Coast 2007 Ozone
SIP.’’ The two principal ones are the
District’s 2007 8-Hour Ozone Plan
(South Coast 2007 AQMP) and the
California Air Resources Board’s
(CARB’s) State Strategy for California’s
2007 State Implementation Plan (2007
State Strategy).
1. 2007 South Coast AQMP
The ‘‘Final 2007 Air Quality
Management Plan, June 2007’’ (South
Coast 2007 AQMP) was adopted by the
District on June 1, 2007 and submitted
to CARB on October 24, 2007.6 7 On
5 EPA has revised or proposed to revise several
elements of the 8-hour ozone implementation rule
since its initial promulgation in 2004. See, e.g., 74
FR 2936 (January 16, 2009); 75 FR 51960 (August
24, 2010); and 75 FR 80420 (December 22, 2010).
None of these revisions affect any provision of the
rule that is applicable to EPA’s proposed actions on
the South Coast 2007 8-Hour Ozone Plan.
6 See November 28, 2007 letter to Wayne Nastri,
Regional Administrator, EPA Region 9, from James
N. Goldstene, Executive Officer, CARB, with
enclosures.
7 The South Coast 2007 AQMP is the first South
Coast Plan to address the 8-hour ozone NAAQS. We
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November 28, 2007, CARB submitted
the South Coast 2007 AQMP to EPA.
The South Coast 2007 AQMP includes
an 8-hour ozone attainment
demonstration for the South Coast
nonattainment area, commitments by
the SCAQMD to adopt control measures
to achieve emissions reductions from
sources under its jurisdiction (primarily
stationary sources), and motor vehicle
emissions budgets (budgets) used for
transportation conformity purposes. The
attainment demonstration includes air
quality modeling, an analysis of CAA
section 172 reasonably available control
measures (RACM), base year and
projected year emissions inventories,
and contingency measures.
In today’s proposal, we are evaluating
only those portions of the South Coast
2007 AQMP and its revisions that are
relevant to attainment of the 1997 8hour ozone standard in the South Coast.
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2. CARB 2007 State Strategy
To demonstrate attainment, the South
Coast 2007 AQMP relies to a large
extent on measures and commitments in
CARB’s 2007 State Strategy. The 2007
State Strategy was adopted by CARB on
September 27, 2007 and submitted to
EPA on November 16, 2007.8 It
describes CARB’s overall approach to
addressing, in conjunction with local
plans, attainment of both the 1997 8hour ozone and fine particulate (PM2.5)
NAAQS not only in the South Coast
nonattainment area but also in the San
Joaquin Valley and the Sacramento area.
It also includes CARB’s commitments to
propose 15 defined State measures 9 and
have previously acted on numerous South Coast air
quality plans for ozone, PM-10, carbon monoxide,
and NO2, such as the 1997/1999 AQMP. We
approved the ozone portion of the 1997 South Coast
AQMP, as amended in 1999, on April 10, 2000 (see
65 FR 18903). Our most recent action on a SIP
addressing the CAA requirements for the South
Coast ozone nonattainment area was our partial
approval and partial disapproval of the 2003
AQMP, which addressed 1-hour ozone (see 74 FR
10176, March 10, 2009). Our 2009 final action was
challenged in the Ninth Circuit Court of Appeals,
which published an opinion remanding certain
aspects of EPA’s action for further action consistent
with the opinion. See Association of Irritated
Residents v. EPA, 632 F.3d 584 (9th Cir. 2011). The
issues in dispute relate to the consequences of an
EPA disapproval of a SIP submittal, the adequacy
of EPA’s evaluation of a particular control measure
from the 2003 State Strategy, and the rationale for
EPA’s approval of the State’s submittal as meeting
the requirements of CAA section 182(d)(1)(A)
(TCMs to offset growth in emissions from growth
in VMT) in the South Coast. EPA has sought
rehearing on some of the issues, and the mandate
in this case has not yet been issued pending action
by the court on the petition for rehearing.
8 See CARB Resolution No. 07–28, September 27,
2007 with attachments and letter from James N.
Goldstene, Executive Officer, CARB, to Wayne
Nastri, Regional Administrator, EPA Region 9,
November 16, 2007 with enclosures.
9 The 2007 State Strategy also includes measures
to be implemented by the California Bureau of
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to obtain specific amounts of aggregate
emissions reductions of NOX and VOC
emissions in the South Coast from
sources under the State’s jurisdiction,
primarily on- and off-road motor
vehicles and engines. In addition, it
contains an RFP demonstration and
contingency measures for the South
Coast 8-hour ozone nonattainment area.
On August 12, 2009, CARB submitted
the ‘‘Status Report on the State Strategy
for California’s 2007 State
Implementation Plan (SIP) and
Proposed Revision to the SIP Reflecting
Implementation of the 2007 State
Strategy,’’ dated March 24, 2009 and
adopted April 24, 2009 (‘‘2009 State
Strategy Status Report’’).10 This
submittal updated the 2007 State
Strategy to reflect its implementation
during 2007 and 2008.
In today’s proposal, we are evaluating
only those portions of the 2007 State
Strategy and its revisions that are
relevant to attainment of the 1997 8hour ozone standard in the South Coast.
3. CARB’s 2011 SIP Revisions
On May 18, 2011, CARB submitted a
SIP revision entitled Progress Report on
Implementation of PM2.5 State
Implementation Plans (SIP) for the
South Coast and San Joaquin Valley Air
Basins and Proposed SIP Revisions,
dated March 29, 2011 and adopted April
28, 2011, together with the adopting
resolution and other supporting
documentation 11 12 (2011 Progress
Report). Appendix F of this 2011
Progress Report provides revised control
measure commitments and a revised
rule implementation schedule for the
South Coast 2007 AQMP.13 We refer to
Automotive Repair (Smog Check improvements)
and the California Department of Pesticide
Regulation (VOC reductions from pesticide use).
See 2007 State Strategy, pp. 64–65 and CARB
Resolution 7–28, Attachment B, p. 8.
10 See CARB Resolution No. 09–34, April 24,
2009 and letter, James N. Goldstene, Executive
Officer, CARB, to Wayne Nastri, Regional
Administrator, EPA Region 9, August 12, 2009 with
enclosures. Only pages 11–27 of the 2009 State
Strategy Status Report are submitted as a SIP
revision. The balance of the report is for
informational purposes only. See Attachment A to
CARB Resolution No. 09–34.
11 See CARB Board Resolution 11–24, April 28,
2011 and letter, James N. Goldstene, Executive
Officer, CARB, to Jared Blumenfeld, Regional
Administrator, EPA Region 9, May 18, 2011 with
enclosures.
12 Only Appendices B, C, and D of the 2011
Progress Report are submitted as a SIP revision. The
balance of the report is for informational purposes
only. See letter, James Goldstene, Executive Officer,
CARB, to Jared Blumenfeld, Regional
Administrator, EPA Region 9, May 18, 2011.
13 See letter, Lynn Terry, Deputy Executive
Officer, CARB, to Jared Blumenfeld, Regional
Administrator, EPA Region 9, dated May 19, 2011,
and enclosed ARB Board Resolution 11–24.
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this SIP revision as the ‘‘2011 Progress
Report, Appendix F.’’
On July 29, 2011, CARB submitted the
‘‘8-Hour Ozone State Implementation
Plan Revisions and Technical Revisions
to the PM2.5 State Implementation Plan
Transportation Conformity Budgets for
the South Coast and San Joaquin Valley
Air Basins,’’ dated June 20, 2011 and
adopted July 21, 2011 (2011 Ozone SIP
Revision).14 This SIP revision updates
the 2007 State Strategy and 2009 State
Strategy Status Report. Specifically, it
updates the emissions inventories, RFP
demonstration, contingency measures,
and transportation conformity budgets
for the South Coast to reflect rule
adoptions and improvements to
emissions estimates. CARB provided
supplemental documentation for the
2011 Ozone SIP Revision on August 10,
2011 (2011 Ozone SIP Supplement).15
Future references in this proposal to
the 2007 State Strategy and to the South
Coast 2007 AQMP will be to the State
Strategy as revised in 2009 and 2011,
and the AQMP as revised in 2011,
respectively, unless otherwise noted.
B. CAA Procedural and Administrative
Requirements for SIP Submissions
CAA sections 110(a)(1) and (2) and
110(l) require a state to provide
reasonable public notice and
opportunity for public hearing prior to
the adoption and submission of a SIP or
SIP revision. To meet this requirement,
every SIP submittal should include
evidence that adequate public notice
was given and an opportunity for a
public hearing was provided consistent
with EPA’s implementing regulations in
40 CFR 51.102.
Both the District and CARB have
satisfied applicable statutory and
regulatory requirements for reasonable
public notice and hearing prior to
adoption and submission of the South
Coast 2007 Ozone Plan. The District
conducted public workshops, provided
public comment periods, and held
public hearings prior to the adoption of
the South Coast 2007 AQMP on June 1,
2007 (See SCAQMD Governing Board
Resolution No. 07–9). CARB provided
the required public notice and
opportunity for public comment prior to
its September 27, 2007 public hearing
on the plan. See CARB Resolution No.
07–41. The District also provided the
14 See CARB Resolution 11–22, July 21, 2011 and
letter, James N. Goldstene, Executive Officer, CARB,
to Jared Blumenfeld, Regional Administrator, EPA
Region 9, July 29, 2011 with enclosures. Only
Appendix A of the 2011 Ozone SIP Revision is
submitted as a SIP revision. The balance of the
report is for informational purposes only.
15 See letter, Lynn Terry, Executive Officer,
CARB, to Deborah Jordan, Director, Region 9 Air
Division, dated August 10, 2011 with attachments.
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required public notice and hearing on
its 2011 revision to the 2007 AQMP. See
SCAQMD Governing Board Resolution
11–9.
CARB conducted public workshops,
provided public comment periods, and
held a public hearing prior to the
adoption of the 2007 State Strategy on
September 27, 2007 (See CARB
Resolution No. 07–28). CARB also
provided the required public notice,
opportunity for public comment, and a
public hearing prior to its April 24, 2009
adoption of the 2009 State Strategy
Status Report. See CARB Resolution 09–
34, April 24, 2009. Finally, CARB
provided the required public notice,
opportunity for public comment, and a
public hearing prior to its April 28, 2011
and July 21, 2011 adoption of the 2011
Progress Report and the 2011 Ozone SIP
Revision, respectively. See CARB
Resolution 11–11, April 28, 2011, and
CARB Resolution 11–22, July 21, 2011.
The SIP submittals include proof of
publication for notices of the District
and CARB public hearings, as evidence
that all hearings were properly noticed.
We find, therefore, that each of the five
submittals meet the procedural
requirements for public notice and
hearing in CAA sections 110(a) and
110(l).
CAA section 110(k)(1)(B) requires
EPA to determine whether a SIP
submittal is complete within 60 days of
receipt. This section also provides that
any plan that EPA has not affirmatively
determined to be complete or
incomplete will be deemed complete 6
months after the date of submission by
operation of law. EPA’s SIP
completeness criteria are found in 40
CFR part 51, Appendix V.
The November 28, 2007 submittal of
the South Coast 2007 AQMP became
complete by operation of law on May
28, 2008. The November 16, 2007
submission of the 2007 State Strategy
and the August 12, 2009 revisions to the
Strategy became complete by operation
of law on May 16, 2008 and February
12, 2010, respectively.
We determined that CARB’s 2011
Progress Report submittal of May 18,
2011 was complete on June 13, 2011.
See Letter, Deborah Jordan, Air Division
Director, US EPA Region 9, to James
Goldstene, Executive Officer, CARB,
dated June 13, 2011. We determined
that CARB’s 2011 Ozone SIP Update
submittal of July 29, 2011 was complete
on August 23, 2011.16
16 See Letter, Deborah Jordan, Air Division
Director, US EPA Region 9, to James Goldstene,
Executive Officer, CARB, dated August 23, 2011.
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IV. Review of the South Coast 2007
AQMP and the South Coast Portion of
the Revised 2007 State Strategy
We provide our evaluation of the
South Coast 2007 8-Hour Ozone SIP’s
compliance with applicable CAA and
EPA regulatory requirements below. A
more detailed evaluation can be found
in the technical support document
(TSD) for this proposal, which is
available online at https://
www.regulations.gov under docket
number EPA–R09–OAR–2011–0622, or
from the EPA contact listed at the
beginning of this notice.
A. Emissions Inventories
1. Requirements for Emissions
Inventories
CAA section 182(a)(1) requires each
state with an ozone nonattainment area
classified under subpart 2 to submit,
within two years of the area’s
designation as nonattainment, a
‘‘comprehensive, accurate, current
inventory of actual emissions from all
sources’’ of the relevant pollutant or
pollutants in accordance with guidance
provided by EPA. CAA 182(a)(1), 40
CFR 51.915. EPA has issued ‘‘Emissions
Inventory Guidance for Implementation
of Ozone and Particulate Matter NAAQS
and Regional Haze Regulations,’’ (EPA–
454/R–05–001), November 2005 (‘‘EI
Guidance’’) which provides guidance on
how to develop base year and baseline
emissions inventories for 8-hour ozone,
PM2.5, and regional haze SIPs.
For areas that were initially
designated nonattainment for the 8-hour
ozone standard in 2004, EPA
recommends using calendar year 2002
as the base year for the inventory
required by CAA section 182(a)(1). EI
Guidance, p. 8.
Emissions inventories for ozone
should include emissions of VOC, NOX,
and carbon monoxide (CO) and
represent an average summer week day
during the ozone season. EI Guidance,
pp. 14 and 17. States should include
documentation in their submittals
explaining how emissions data were
calculated. 70 FR 71612 at 71664 and EI
Guidance, p. 40. In estimating mobile
source emissions, states should use the
latest emission models and planning
assumptions available at the time the
SIP is developed. 66 FR at 32854 and 70
FR 61612, at 71666. For California, the
latest available mobile source emissions
model is EMFAC2007, which EPA
approved in 2008 for use in SIPs and
transportation conformity analyses. See
73 FR 3464 (January 18, 2008).
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2. Emissions Inventories in the South
Coast 2007 AQMP
The base year and future year baseline
inventories for ozone precursors for the
South Coast ozone nonattainment area
together with additional documentation
for the inventories are found in Chapter
3 and Appendix III of the South Coast
2007 AQMP.17 These inventories
represent average summer day (ozone
season) emissions. Inventories are
provided for the base year of 2002; the
RFP milestone years of 2008, 2011,
2014, 2017, 2020; and the attainment
year of 2023. The projected baseline
inventories include reductions from
Federal, State, and District measures
adopted prior to 2007. See South Coast
2007 AQMP, page 3–1 and 2007 State
Strategy, Appendix A, p. 1. All
inventories include emissions from
point, area, on-road and non-road
sources.
As a starting point for the South Coast
2007 AQMP’s inventories, the District
used CARB’s inventory for the year
2002. This inventory and CARB’s
documentation for its inventories can be
found in Appendices A and F,
respectively, of the 2007 State Strategy.
The 2002 inventory for the South Coast
nonattainment area was projected to
2005 and future years using CARB’s
California Emission Forecasting System
(CEFS). Both base year and projected
baseline inventories use the most
current version of California’s mobile
source emissions model, EMFAC2007,
for estimating on-road motor vehicle
emissions. EPA has approved this
model for use in SIPs and transportation
conformity analyses. 73 FR 3464
(January 18, 2008). Off-road inventories
were developed using the CARB offroad model.
As part of its 2011 Ozone SIP
Revision, CARB submitted revised base
year and future year baseline
inventories for the South Coast
nonattainment area. See Table 1 below.
These revised inventories incorporate
improved activity data and/or emission
factors for diesel trucks and buses and
off-road equipment that were developed
as part of CARB’s December 2010
rulemakings amending its In-Use OnRoad Truck and Bus Rule and In-Use
Off-Road Engine rule. The State
estimates that these changes collectively
reduce the 2002 base year total
inventory in the South Coast by 5
percent for NOX and less than 2 percent
17 By ‘‘future year baseline inventories’’ or
‘‘projected baseline inventories,’’ we mean
projected emissions inventories for future years that
account for, among other things, the effects of
economic growth and adopted emissions control
requirements.
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for VOC.18 The projected baseline
inventories for subsequent years were
also revised to reflect the ongoing effects
of the 2007–2009 economic recession,
which has significantly reduced activity
levels and associated emissions from the
State’s construction and goods
movement sectors. CARB estimates that
emissions levels and growth rates will
return to normal levels by the 2017–
2018 timeframe. 2011 Ozone SIP
Revision, Appendix B. As a result,
projected emission levels from these
categories in the years up to 2017–2018
are now substantially lower than were
originally projected in the South Coast
2007 AQMP and 2007 State Strategy as
submitted in November 2007. These
recession-related decreases in emissions
do not in themselves affect the Plan’s
emissions inventories for the modeling
validation years (1997, 2004, and 2005),
the base year (2002), or future years
(2020 and 2023), and thus do not change
the carrying capacity estimates in the
plan (i.e., they do not in themselves
affect the target level of overall
emissions reductions needed to
demonstrate attainment), nor do they
alter the 2002 adjusted baseline
emissions, which provide the starting
point for the reasonable further progress
demonstration. The principal effect of
the recession-related decreases in
projected emissions estimates is to
reduce the amount of reductions needed
from the SIP’s control strategy to
demonstrate RFP in the years prior to
2018.
TABLE 1—SOUTH COAST BASE YEAR AND ATTAINMENT YEAR EMISSIONS INVENTORY SUMMARY
[Summer planning inventory emissions in tons per day] a
Emissions inventory category
NOx
Year
2002
VOC
2023
2002
2023
Stationary/Areawide Sources ..........................................................
On-road Mobile Sources ..................................................................
Off-road Mobile Sources ..................................................................
89
652
283
68
140
170
318
361
202
273
98
142
TOTAL ......................................................................................
1024
378
881
513
a Numbers
may not add up to precise totals due to rounding. Source: 2011 Ozone SIP Revision, Appendix B, p. B–2.
3. Proposed Action on the Base Year
Emissions Inventory
We have reviewed the 2002 base year
emissions inventory in the South Coast
2007 AQMP and the inventory
methodologies used by the District and
CARB in developing that inventory and
have determined that the inventory was
developed consistent with CAA
requirements as reflected in the 8-hour
ozone implementation rule, and EPA’s
guidance. The revised 2002 base year
inventory is a comprehensive, accurate,
and current inventory of actual
emissions of 8-hour ozone precursors in
the South Coast nonattainment area. We
therefore propose to approve the base
year inventory as meeting the
requirements of CAA section 182(a)(1)
and EPA’s 8-hour ozone implementation
rule. 40 CFR 51.915. We provide detail
on our review of the base year inventory
in section II.A. of the TSD for this
proposal.
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
B. Reasonably Available Control
Measures (RACM) Demonstration and
Control Strategy
1. Requirements for RACM and Control
Strategy
CAA section 172(c)(1) requires that
each attainment plan ‘‘provide for the
18 See
Appendix A of 2011 Ozone SIP Revision.
‘‘General Preamble for the Implementation
of Title I of the Clean Air Act Amendments of
1990,’’ published at 57 FR 13498 on April 16, 1992,
describes EPA’s preliminary view on how we
would interpret various SIP planning provisions in
title I of the CAA as amended in 1990, including
those planning provisions applicable to the 1-hour
19 The
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implementation of all reasonably
available control measures as
expeditiously as practicable (including
such reductions in emissions from
existing sources in the area as may be
obtained through the adoption, at a
minimum, of reasonably available
control technology), and shall provide
for attainment of the national primary
ambient air quality standards.’’ The 8hour ozone implementation rule
requires that for each nonattainment
area that is required to submit an
attainment demonstration, the state
must also submit concurrently a SIP
revision demonstrating that it has
adopted all RACM necessary to
demonstrate attainment as expeditiously
as practicable and to meet any RFP
requirements. 40 CFR 51.912(d).
EPA has previously provided
guidance interpreting the RACM
requirement in the General Preamble at
13560 19 and in a memorandum entitled
‘‘Guidance on Reasonably Available
Control Measures (RACM) Requirements
and Attainment Demonstration
Submissions for the Ozone NAAQS,’’
John Seitz, November 30, 1999. (Seitz
memo). In summary, EPA guidance
provides that to address the requirement
to adopt all RACM, states should
consider all potentially reasonable
control measures for source categories
in the nonattainment area to determine
whether they are reasonably available
for implementation in that area and
whether they would, if implemented
individually or collectively, advance the
area’s attainment date by one year or
more. See Seitz memo and General
Preamble at 13560; see also ‘‘State
Implementation Plans; General
Preamble for Proposed Rulemaking on
Approval of Plan Revisions for
Nonattainment Areas,’’ 44 FR 20372
(April 4, 1979) and Memorandum dated
December 14, 2000, from John S. Seitz,
Director, Office of Air Quality Planning
and Standards, ‘‘Additional Submission
on RACM from States with Severe OneHour Ozone Nonattainment Area SIPs.’’
Any measures that are necessary to
meet these requirements that are not
already either federally promulgated,
part of the state’s SIP, or otherwise
creditable in SIPs must be submitted in
enforceable form as part of a state’s
attainment plan for the area. 72 FR
20586, at 20614.20
ozone standard. EPA continues to rely on certain
guidance in the General Preamble to implement the
8-hour ozone standard under title I.
20 For ozone nonattainment areas classified as
moderate or above, CAA section 182(b)(2) also
requires implementation of RACT for all major
sources of VOC and for each VOC source category
for which EPA has issued a Control Techniques
Guideline (CTG). CAA section 182(f) requires that
RACT under section 182(b)(2) also apply to major
stationary sources of NOX. In extreme areas, a major
source is a stationary source that emits or has the
potential to emit at least 10 tons of VOC or NOX
per year. CAA section 182(e) and (f). Under the 8hour ozone implementation rule, states were
required to submit SIP revisions meeting the RACT
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CAA section 172(c)(6) requires
nonattainment plans to ‘‘include
enforceable emission limitations, and
such other control measures, means or
techniques (including economic
incentives such as fees, marketable
permits, and auctions of emission
rights), as well as schedules and
timetables for compliance, as may be
necessary or appropriate to provide for
attainment of such standard in such area
by the applicable attainment
date * * *.’’ See also CAA section
110(a)(2)(A). The ozone implementation
rule requires that all control measures
needed for attainment be implemented
no later than the beginning of the
attainment year ozone season. 40 CFR
51.908(d). The attainment year ozone
season is defined as the ozone season
immediately preceding a nonattainment
area’s attainment date. 40 CFR
51.900(g).
2. RACM Demonstration and Control
Strategy
For the 2007 Ozone Plan and the 2007
State Strategy, CARB, the District, and
the local agency (through the South
Coast’s metropolitan planning
organization (MPO), the Southern
California Association of Governments
(SCAG)) each undertook a process to
identify and evaluate potential
reasonably available control measures
that could contribute to expeditious
attainment of the 1997 8-hour ozone
standards in the South Coast
nonattainment area. We describe each
agency’s efforts below.
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
a. District’s RACM Demonstration and
Control Strategy
The District’s RACM demonstration,
which focuses on stationary and area
source controls, is described in Chapter
6 and Appendix VI of the South Coast
2007 AQMP. In developing the South
Coast 2007 AQMP, the District
conducted a process to identify RACM
for the South Coast that involved public
meetings to solicit input, evaluation of
EPA’s suggested RACM, and evaluation
of other air agencies’ regulations. See
South Coast 2007 AQMP, Appendix VI.
requirements of CAA sections 182(b)(2) and 182(f)
no later than 27 months after designation for the 8hour ozone standard (September 15, 2006 for areas
designated in April 2004) and to implement the
required RACT measures no later than 30 months
after that submittal deadline. See 40 CFR 51.912(a).
California submitted the CAA section 182 RACT
SIP for the South Coast 8-hour ozone nonattainment
area on January 31, 2007, which EPA fully
approved on December 18, 2008. See 73 FR 76947.
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To identify potential reasonably
available measures for the South Coast,
the District evaluated measures
implemented in other nonattainment
areas (including the San Joaquin Valley,
the San Francisco Bay Area,
Sacramento, Ventura, Dallas-Fort Worth,
and the Houston-Galveston area) and
measures identified by the Lake
Michigan Air Directors Consortium
(LADCO), and held meetings with
CARB, technical experts, local
government representatives, and the
public during development of the South
Coast 2007 AQMP. The District
sponsored an AQMP summit, which
generated 200 potential control
measures. The District also reevaluated
all 82 of the existing SIP-approved
District rules and regulations.
From the set of identified potential
controls, the District then screened the
identified measures and rejected those
that would not individually or
collectively advance attainment in the
area, had already been adopted as rules,
or were in the process of being adopted.
The remaining measures were evaluated
taking into account baseline inventories,
available control technologies, and
potential emission reductions as well as
whether the measure could be
implemented on a schedule that would
advance attainment of the 1997 8-hour
ozone standard by at least a year,
assuming a 2024 deadline. South Coast
2007 AQMP, Appendix VI.
In general, EPA believes that the
District’s current rules and regulations
are equivalent to or more stringent with
respect to emissions of ozone precursors
than those developed by other air
districts.
Based on its RACM analysis for
stationary and area sources under its
jurisdiction, the District scheduled 15
new or revised stationary source control
measures for development and
adoption, including measures at least as
stringent as those identified in other
California districts’ AQMPs and several
innovative measures. Since submission
of the AQMP in 2007, the District has
adopted 13 of these rules and submitted
them to EPA for approval into the SIP.
These rules are part of the District’s
enforceable commitment to achieve
emissions reductions of 9 tons per day
(tpd) of NOX and 19 tpd of VOC by
2023. As to the few remaining measures
that the District rejected from its RACM
analysis, the District determined that
these measures would not advance the
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57877
attainment date or contribute to RFP
due to the insignificant or
unquantifiable emissions reductions
they would potentially generate. See
South Coast 2007 AQMP, Appendix VI.
The District has made new
commitments in its South Coast 2007
AQMP to achieve specific reductions
from VOC and NOX sources in the South
Coast area. The District committed to
adopt and submit measures that will
achieve the following additional
emissions reductions by 2023: 9 tpd
NOX and 19 tpd VOC. See South Coast
2007 AQMP, Table 4–2A, page 4–10 and
CARB Staff Report on the South Coast
2007 AQMP, page 13.21 The District
expects to meet its emissions reductions
commitments for VOC and NOX (see
Table 2 below) by adopting new control
measures and programs and
strengthening existing control measures,
such as those identified in Table 4–2A
of the South Coast 2007 AQMP (see
South Coast 2007 AQMP, page 4–10 and
CARB Staff Report on South Coast 2007
AQMP, p. 13), and through the
additional actions summarized in the
CARB Staff Report on the South Coast
2007 AQMP (See CARB Staff Report on
South Coast 2007 AQMP, p. 18). These
new or revised control measures include
rules to regulate lubricants, consumer
products, non-RECLAIM ovens, dryers
and furnaces, space heaters, facility
modernizations, livestock waste, and
residential wood burning. The South
Coast 2007 AQMP also identifies 22
measures (beyond the new control
measures and additional actions just
discussed) for further review, which
may yield additional emission
reductions.
SCAQMD has committed to adopt and
implement control measures that will
achieve the total tonnage of emission
reductions identified in Tables 2 and 3
of Appendix F of the 2011 Progress
report. As discussed above, the District’s
commitment is to achieve the total
tonnage of reductions of each pollutant
by the specified dates. If SCAQMD
determines that a particular measure is
infeasible, in whole or in part, SCAQMD
commits to achieve equivalent
reductions on the same schedule
through substitute controls. South Coast
2007 AQMP, p. 4–73.
21 The CARB Staff Report on the South Coast 2007
AQMP, page ES–4, incorrectly states the SCAQMD
commitments as 19 tpd NOX and 9 tpd VOC.
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TABLE 2—DISTRICT SHORT AND INTERMEDIATE TERM CONTROL MEASURES CREDITED IN SOUTH COAST 2007 AQMP
ATTAINMENT DEMONSTRATION, AS REVISED IN 2011
Control
measure
Rule No.
Emissions reduction commitment in South
Coast 2007
AQMP, as revised in 2011
Title
Emissions reductions achieved a
NOX
VOC
NOX
BCM–03 .......
445
CTS–01 ........
1144
CTS–03 b ......
........................
CTS–04 ........
1143
CMB–01 .......
1147
FUG–02 .......
FUG–04 .......
461
1149
CMB–03 .......
1111
MCS–01 .......
1110.2
Woodburning
fireplaces
and
woodstoves.
Metalworking fluids and direct-contact
lubricants.
Consumer Products Certification and
Emissions Reductions from the Use
of Consumer Products at Inst. and
Comm’l Facilities.
Consumer Paint Thinners and MultiPurpose Solvents.
NOX reductions from miscellaneous
sources.
Gasoline transfer and dispensing ........
Storage Tank and Pipeline Cleaning
and Degassing.
Further NOX reductions from space
heaters.
Liquid and gaseous fuels—stationary
ICEs.
VOC
n/a .....
n/a .....
0.1 tpd
0.7 tpd.
n/a .....
2.0 tpd
n/a
4.2 tpd.
n/a .....
n/a .....
n/a
n/a.
n/a .....
n/a .....
n/a
10.1 tpd.
4.1 tpd
...........
4.1 tpd
n/a .....
n/a .....
4.0 tpd
n/a .....
n/a
n/a
Met via excess from Rule 1143.
0.04 tpd.
1.1 tpd
n/a .....
3.0 tpd
n/a.
2.2 tpd
9.2 tpd
0.54 tpd
0.3 tpd.
Measures not yet adopted or not fully approved by EPA c
MCS–01 .......
1146
1146.1
...............................................................
NOX from industrial, institutional, &
commercial boilers, steam generators, and process heaters.
NOX from small ind, inst, & comm’l
boilers, steam gens, and proc. htrs.
NOX ..
...........
VOC ..
...........
...........
...........
2301
Emissions reductions from new or redevelopment projects.
0.8 tpd
0.5 tpd
MCS–05 .......
1127
Livestock waste ....................................
n/a .....
0.6 tpd
FLX–02 ........
........................
Refinery pilot program ..........................
n/a .....
1.6 tpd
MOB–05 .......
........................
AB923 LDV high emitter program ........
0.4 tpd
0.7 tpd
MOB–06 .......
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
EGM–01 .......
........................
AB923 MDV high emitter program .......
0.6 tpd
0.6 tpd
Emissions reductions not currently creditable; EPA
proposed limited approval/limited disapproval
published July 8, 2011, see 76 FR 40303.
Emissions reductions not currently creditable; EPA
proposed limited approval/limited disapproval
published July 8, 2011, see 76 FR 40303.
Scheduled for
adoption in
2012.
EPA has
not yet
acted
on this
rule.
Not yet
adopted.
No rule
associated
with
this
measure.
No rule
associated
with
this
measure.
SIP Commitments and Currently Creditable Reductions
2023 SIP commitment—NOX ........
2023 SIP commitment—VOC ........
9.2 tpd NOX ..................................
19.3 tpd VOC ................................
SIP-creditable reductions—NOX ..
SIP-creditable reductions—VOC ..
7.7 tpd.
15.3 tpd.
a From SCAQMD’s 2011 ‘‘Revisions to PM
2.5 and Ozone State Implementation Plan for South Coast Air Basin and Coachella Valley,’’ which
was included as Appendix F in CARB’s 2011 Progress Report, Tables 2 and 3, and District rule evaluation forms. Some emissions reduction
commitments were revised from the information originally provided in the South Coast 2007 AQMP.
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57879
b Adopted
by CARB in November 2010.
can only credit District rules that have been adopted, submitted to EPA, and approved for credit in the SIP.
n/a = not applicable.
c EPA
TABLE 3—STATUS OF DISTRICT RULES IN THE SOUTH COAST 2007 AQMP FOR 8-HOUR OZONE
Rule
Adoption date
Rule 445—Woodburning fireplaces
and woodstoves.
Rule 461—Gasoline transfer and
dispensing.
Rule 1149—storage tank and pipeline cleaning and degreasing.
Rule 1144—Vanishing oils and rust
inhibitors.
Rule 1143—Consumer Paint Thinners and Multi-Purpose Solvents.
Rule 1147—NOX reductions from
miscellaneous sources.
Rule 1111—Further NOX reductions from space heaters.
Rule 1110.2—Liquid and gaseous
fuels—stationary ICEs.
Rule 1146—NOX from industrial,
institutional, commercial boilers,
steam generators, and process
heaters.
Rule 1146.1—NOX from small industrial, institutional, commercial
boilers, steam generators, and
process heaters.
Rule 1127—Livestock Waste .........
Refinery Pilot Program ...................
Rule 2301—Indirect Source Review.
AB923—Light duty vehicle high
emitter program.
AB923—Light duty vehicle high
emitter program.
Implementation date
SIP status
Federal Register cite
2008
2008–2014
SIP-approved .................................
74 FR 27716, 06/11/09.
2009
2010–2012
SIP-approved .................................
71 FR 18216, 04/11/06.
2008
2008
SIP-approved .................................
74 FR 67821, 12/21/09.
2009
2011
Proposed for SIP-approval ............
75 FR 41744, 07/15/11.
2009
2011
Proposed for SIP-approval ............
76 FR 41744, 07/15/11.
2008
2010
SIP-approved .................................
75 FR 46845, 08/04/10.
2009
2012–2043
SIP-approved .................................
75 FR 46845, 08/04/10.
2008
2011
SIP-approved .................................
74 FR 18995, 4/27/09.
2008
2011
Submitted .......................................
Proposed limited approval/limited
disapproval 7/8/11, 76 FR
40303.
2008
2011
Submitted .......................................
Proposed limited approval/limited
disapproval 7/8/11, 76 FR
40303.
2006
2008
2012
2011
2010
2014
Submitted to EPA on 10/05/06 ......
Not yet adopted .............................
Not yet adopted .............................
Found complete on 10/25/06.
N/A.
N/A.
(a)
(a)
N/A.
(a)
(a)
No rule associated with this measure.
No rule associated with this measure.
N/A.
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
a Ongoing.
b. The Local Jurisdiction’s RACM
Analysis
The local jurisdiction’s RACM
analysis was conducted by the
metropolitan planning organization
(MPO) for the South Coast region, the
Southern California Association of
Governments (SCAG). This analysis
focused on transportation control
measures (TCMs). TCMs are, in general,
measures designed to reduce emissions
from on-road motor vehicles through
reductions in vehicle miles traveled or
traffic congestion. SCAG’s analysis is
described in Appendix IV–C of the
South Coast 2007 AQMP. The TCMs in
the South Coast 2007 AQMP are derived
from TCM projects in the 2006 SCAG
Regional Transportation Improvement
Program (RTIP). This evaluation,
described beginning on page 49 of
Appendix IV–C of the South Coast 2007
AQMP, resulted in extensive local
government commitments to implement
programs to reduce auto travel and
improve traffic flow. South Coast 2007
AQMP page 6–6 and Appendix IV–C.
Attachment A to Appendix IV–C
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contains an extensive list of TCMs
under development and newly
scheduled TCMs. See South Cost 2007
AQMP, Appendix IV–C, p. 39.
SCAG evaluated a wide variety of
transportation control measures,
including those measures listed in CAA
section 108(f), and determined that
there were no combinations of
reasonable measures that would
advance attainment of the 8-hour ozone
standard in the South Coast. See South
Coast 2007 AQMP, Appendix IV–C.
c. CARB’s RACM Demonstration and
Control Strategy
Source categories for which CARB has
primary responsibility for reducing
emissions in California include most
new and existing on- and off-road
engines and vehicles, motor vehicle
fuels, and consumer products.
Given the need for significant
emissions reductions from mobile and
area sources to meet the NAAQS in
California nonattainment areas, the
State of California has been a leader in
the development of stringent control
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measures nationwide for on-road and
off-road mobile sources and the fuels
that power them. See, e.g., 2007 State
Strategy, p. 37; see also TSD at
Appendix A. California has unique
authority under CAA section 209
(subject to a waiver by EPA) to adopt
and implement new emission standards
for many categories of on-road vehicles
and engines and new and in-use offroad vehicles and engines.
The State is working with EPA on
goods movement activities and is
implementing programs to reduce
emissions from ship auxiliary engines,
locomotives, harbor craft and new cargo
handling equipment. In addition, the
State has standards for lawn and garden
equipment, recreational vehicles and
boats, and other off-road sources that
require newly manufactured equipment
to be 80–98 percent cleaner than their
uncontrolled counterparts. Id. Finally,
the State has adopted many measures
that focus on achieving reductions from
in-use mobile sources that include more
stringent inspection and maintenance
requirements in California’s Smog
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Check program, truck and bus idling
restrictions, and various incentive
programs. Appendix A of the TSD
includes a list of all measures adopted
by CARB between 1990 and the
beginning of 2007. These measures,
reductions from which are reflected in
the Plan’s baseline inventories, fall into
two categories: measures that are subject
to a waiver of Federal pre-emption
under CAA section 209 (section 209
waiver measures or waiver measures)
and those for which the State is not
required to obtain a waiver (non-waiver
measures). Emissions reductions from
waiver measures are fully creditable in
attainment and RFP demonstrations and
may be used to meet other CAA
requirements, such as contingency
measures. See TSD, section II.C. and
EPA’s proposed and final approval of
the SJV 1-Hour Ozone Plan at 74 FR
33933, 33938 (July 14, 2009) and 75 FR
10420 (March 8, 2010). Generally, the
State’s baseline non-waiver measures
have been approved by EPA into the SIP
and are fully creditable for meeting CAA
requirements. See TSD, Appendix A.
CARB developed its proposed 2007
State Strategy after an extensive public
consultation process to identify
potential SIP measures.22 Through this
process, CARB identified and has
committed to develop 15 new or revised
control measures. See also the
discussion on enforceable commitments
below. These measures focus on
cleaning up the in-use fleet as well as
increasing the stringency of emissions
standards for a number of engine
categories, fuels, and consumer
products. They build on CARB’s
existing program, which addresses
emissions from all types of mobile
sources through both regulations and
incentive programs. See Appendix A of
the TSD. Table 4 lists the defined
measures in the 2007 State Strategy and
their current adoption and approval
status. Table 5 provides the State’s
current estimate of the expected
emissions reductions from these
measures in the attainment year (2023),
which would contribute to achieving
the State’s aggregate emission reduction
commitment for that year.
TABLE 4—2007 STATE STRATEGY DEFINED MEASURES SCHEDULED FOR CONSIDERATION AND CURRENT STATUS
[Updated July 2011]
State measure
Expected action year
Smog Check Improvements .................................................
Expanded Vehicle Retirement ..............................................
Modifications to Reformulated Gasoline Program ................
Cleaner In-use Heavy Duty Trucks ......................................
2007–2009 ................
2007 ..........................
2007 ..........................
2007, .........................
2008, 2010 ................
2007–2008 ................
Fuel: 2008–2011 .......
Engines: 2008 ...........
2007, 2008, 2010 ......
2008 ..........................
Auxiliary Ship Cold Ironing and Other Clean Technologies
Cleaner Main Ship Engines and Fuels .................................
Port Truck Modernization ......................................................
Accelerated Introduction of Cleaner Locomotives ................
Clean Up Existing Harbor Craft ............................................
Cleaner In-Use Off-Road Equipment ....................................
New Emissions Standards for Recreational Boats ...............
Expanded Off-Road Recreational Vehicle Emissions Standards.
Enhanced Vapor Recovery for Above Ground Storage
Tanks.
Additional Evaporative Emissions Standards .......................
Consumer Products Program (I & II) ....................................
2007,
2007,
2013
2013
2010 ................
2010 ................
..........................
..........................
Current status
Elements approved 75 FR 38023 (July 1, 2010).23
Adopted by CARB June 2009; by BAR, September 2010.
Approved, see 75 FR 26653 (May 2, 2010).
Proposed approval 76 FR 40652 (July 11, 2011).
Adopted December 2007.
Proposed approval 76 FR 40652 (July 11, 2011).
Adopted December 2007 and December 2008.
Prop 1B funds awarded to upgrade line-haul locomotive
engines not already accounted for by enforceable
agreements with the railroads. Those cleaner line-hauls
will begin operation by 2012.
Adopted November 2007, revised June 2010.
Waiver decision pending.
Action expected in 2013.
Action expected in 2013.
2008 ..........................
Adopted June 2007, effective June 2008.
2009, 2013 ................
2008, 2009, & 2011 ..
Action expected 2013.
Approved 74 FR 57074 (November 4, 2009) and 76 FR
27613 (May 12, 2011).
Source: 2009 State Strategy Status Report, p. 23, 2011 Progress Report, Table 1, and 2011 Ozone SIP Revision, Appendix A–3. Additional information from https://www.arb.ca.gov.
TABLE 5—EXPECTED EMISSIONS REDUCTIONS FROM DEFINED MEASURES IN THE 2007 STATE STRATEGY FOR THE SOUTH
COAST
[2023 planning inventory, tpd]
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Measure
2023 NOX
Smog Check Improvements (BAR) [partial] ............................................................................................................
Cleaner In-Use Heavy-Duty Trucks .........................................................................................................................
Ship Auxiliary Engine Cold Ironing & Clean Technology ........................................................................................
Cleaner Main Ship Engines and Fuel [engine portion] ...........................................................................................
Clean Up Existing Harbor Craft ...............................................................................................................................
Cleaner In-Use Off-Road Equipment (>25hp) .........................................................................................................
22 More information on this public process
including presentations from the workshops and
symposium that preceded the adoption of the 2007
State Strategy can be found at https://
www.arb.ca.gov/planning/sip/2007sip/2007sip.htm.
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23 California Assembly Bill 2289, passed in 2010,
requires the Bureau of Automotive Repair (BAR) to
direct older vehicles to high performing auto
technicians and test stations for inspection and
certification effective 2013. Reductions shown for
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2023 VOC
1.2
27.4
28.4
44.5
10
3.2
the SmogCheck program in the 2011 Progress
Report do not include reductions from AB 2289
improvements. See CARB Progress Report
Supplement, Attachment 5.
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TABLE 5—EXPECTED EMISSIONS REDUCTIONS FROM DEFINED MEASURES IN THE 2007 STATE STRATEGY FOR THE SOUTH
COAST—Continued
[2023 planning inventory, tpd]
Measure
2023 VOC
2023 NOX
Consumer Products Program [partial] .....................................................................................................................
—
7.1
Totals ................................................................................................................................................................
114.7
15.9
Source: CARB 2011 Ozone SIP Revision Supplement, Attachment 1.
The 2007 State Strategy includes an
enforceable commitment to achieve
aggregate emissions reductions of 141
tpd of NOX and 54 tpd of VOC by the
attainment year (2023). See Table 6. The
2007 State Strategy demonstrates that
these CARB commitments, in
combination with existing SIPcreditable measures, the District’s
commitments, and reduction
commitments from the CAA section
182(e)(5) new technologies provision,
will be sufficient to attain the 1997 8hour NAAQS in the South Coast
nonattainment area by the applicable
attainment date of June 15, 2024. CARB
also made enforceable commitments to
achieve aggregate emissions reductions
in the RFP milestone years of 2014 and
2020. See 2009 State Strategy Status
Report, p. 20 and CARB Resolution 07–
28, Attachment B, p. 4. See Table 6
below. The nature of these
commitments is described in the State
Strategy as follows:
The total emission reductions from the
new measures necessary to attain the federal
standards are an enforceable State
commitment in the SIP. While the proposed
State Strategy includes estimates of the
emission reductions from each of the
individual new measures, it is important to
note that the commitment of the State
Strategy is to achieve the total emission
reductions necessary to attain the federal
standards, which would be the aggregate of
all existing and proposed new measures
combined. Therefore, if a particular measure
does not get its expected emission
reductions, the State still commits to
achieving the total aggregate emission
reductions, whether this is realized through
additional reductions from the new measures
or from alternative control measures or
incentive programs. If actual emission
decreases occur in any air basin for which
emission reduction commitments have been
made that are greater than the projected
emissions reductions from the adopted
measures in the State Strategy, the actual
emission decreases may be counted toward
meeting ARB’s total emission reduction
commitments.
CARB Resolution 07–28 (September 27,
2007), Appendix B, p. 3.
TABLE 6—CARB COMMITMENTS TO SPECIFIC AGGREGATE EMISSIONS REDUCTIONS
[Tons per summer day]
2014
VOC .................................................................................................
NOX ..................................................................................................
2020 1
46
152
2023
CAA section
182(e)(5) 2
2023
52
144
54
141
40
241
Source: 2009 State Strategy Update, p. 20.
1 No commitments to VOC or NO
X reductions in 2017; 2020 commitment in the South Coast is necessary to provide for attainment in the
downwind nonattainment areas.
2 The anticipated reductions of VOC and NO
X from 182(e)(5) measures will be reassessed as new SIPs are developed and revised. 2009
State Strategy Update, p. 20.
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d. CAA Section 182(e)(5) New or
Improved Technologies Provisions
For ozone nonattainment areas
classified as extreme, the CAA
recognizes that an attainment
demonstration may need to rely to a
certain extent on new or evolving
technologies, given the relatively long
time between developing the initial plan
and attaining the standard and the
degree of emissions reductions needed
to attain. To address these needs, CAA
section 182(e)(5) authorizes EPA to
approve provisions in an extreme area
plan which ‘‘anticipate development of
new control techniques or improvement
of existing control technologies,’’ and to
approve an attainment demonstration
based on such provisions, if the State
demonstrates that: (1) Such provisions
are not necessary to achieve the
incremental emission reductions
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required during the first 10 years after
November 15, 1990;24 and (2) the State
has submitted enforceable commitments
to develop and adopt contingency
measures to be implemented if the
anticipated technologies do not achieve
the planned reductions. CAA 182(e)(5).
The State must submit these
contingency measures to EPA no later
than 3 years before proposed
implementation of these long-term
measures, and the contingency
measures must be ‘‘adequate to produce
emissions reductions sufficient, in
conjunction with other approved plan
provisions, to achieve the periodic
emissions reductions required by [CAA
24 Consistent with provisions in our
implementation regulations for the 1997 ozone
NAAQS at 40 CFR part 51, subpart X, we interpret
this 10 year timeframe to run from the effective date
of designation for the 1997 ozone NAAQS.
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sections 182(b)(1) or (c)(2)] and
attainment by the applicable dates.’’ Id.
The General Preamble further
provides that the new technology
measures contemplated by section
182(e)(5) may include those that
anticipate future technological
developments as well as those that
require complex analyses, decision
making and coordination among a
number of government agencies. See
General Preamble at 13524. An
attainment demonstration that relies on
long-term new technology measures
under section 182(e)(5) must identify
any such measures and contain a
schedule outlining the steps leading to
final development and adoption of the
measures. Id.
CARB and the SCAQMD have
demonstrated a clear need for emissions
reductions from new and improved
control technologies to reduce air
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pollution in the South Coast. The
adopted control measures and
enforceable commitments, discussed
above, provide the majority, but not all,
of the balance of the emissions
reductions needed to attain by June 15,
2024. See 2007 State Strategy, p. 54. The
State Strategy and South Coast AQMP
rely on commitments to achieve
additional reductions of 241 tpd NOX
and 40 tpd VOC by 2023 from new and
improved technologies consistent with
the requirements of section 182(e)(5).
See 2009 State Strategy Status Report, p.
20. The new technology provisions (also
called ‘‘long-term measures’’) described
in the revised 2007 State Strategy and
South Coast 8-Hour Ozone SIP are not
relied on to demonstrate RFP; they are
relied on solely for attainment by June
15, 2024. They are accompanied by an
enforceable commitment by the State to
adopt and submit contingency measures
no later than 3 years before
implementation, as required by CAA
section 182(e)(5). We provide our
analysis of these new technology
provisions below.
CARB and the California districts
have a longstanding history of
successfully adopting and implementing
technology-advancing regulations and
innovative control measures. They have
worked closely with research scientists
and the regulated industry to develop
regulations that are stringent enough to
compel technology development, yet
flexible enough to encourage industry
innovations. CARB has provided a list
of potential long-term control measures
which include increased durability of
emission control equipment in
passenger vehicles, tighter engine
emission standards, cleaner ground
support equipment at airports, and
prioritizing Federal transportation
funding to support air quality goals. See
pp. 56–57 of the 2007 State Strategy.
The SCAQMD has also provided a list
of potential advanced control
technologies and innovative approaches
that could achieve the long-term
reductions (See South Coast 2007
AQMP, pp. 4–54 to 4–71). SCAQMD
also has an active Technology
Advancement Office. The South Coast
technology advancement efforts include,
though are not limited to: Heavy-Duty
Class 8 Electric Trucks, Vehicle
Maintenance, Commercial Green
Cleaners, Fireplace Gas Log Buy-down,
Residential Yard Equipment and
Commercial Leaf Blower Exchange,
Boiler and Process Heater Efficiency
Upgrades, Architectural Coating
Rebates, and zero-emission electric
delivery trucks.
CARB has also provided updates to its
list of potential long-term measures in
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both the 2009 State Strategy update and
the 2011 ozone SIP revision. The
SCAQMD has also provided a more
specific list of potential technologies,
which may be used to fulfill the new
technology commitments. SCAQMD’s
list of potential projects includes (but is
not limited to) extensive retirement of
high-emitting light duty vehicles,
accelerated penetration of zero-emitting
vehicles, retrofit and I/M for heavy duty
vehicles, more stringent fuel
specifications and use of diesel
alternatives, more stringent marine
vessel standards and programs,
advanced and zero-emitting
technologies for locomotives/cargo
transportation, accelerated replacement
of pleasure craft, more stringent aircraft
standards, and ultra-low VOC
formulations for consumer products.
See South Coast AQMP, Table 4–9, p. 4–
56. See 2009 State Strategy Status
Report, pp. 25–27 and 2011 Ozone SIP
Revision, Appendix A, pp. A–8 to A–12.
To implement the long-term strategy,
CARB has committed to a process that
will help ensure that the long-term
measures are adopted and that
reductions are achieved by the
beginning of the last full ozone season
before the attainment date. CARB is
coordinating a government, private and
public effort to establish emission goals
for critical mobile and stationary
emission source categories. The effort
includes periodic assessment of
technology advancement opportunities
and updates to the Board and the public
regarding new emission control
opportunities and progress in achieving
the long-term measure reductions.
CARB’s commitment for implementing
the long-term strategy also includes (a)
sharing results through periodic
briefings to the Board, workshops,
conferences, symposia, Web site
postings and other means, (b) working
to secure resources for continuing
research and development of new
technologies, and (c) developing
schedules for moving from research to
implementation. Id.
An initial step in the long-term
strategy was the signing of a
Memorandum of Agreement (MOA)
between the U.S. EPA, CARB and the
South Coast and San Joaquin Valley Air
Districts to commit to developing and
testing new sustainable technologies to
accelerate progress in meeting air
quality goals. The goal of the MOA is to
help align agency research resources to
evaluate innovative technologies and
assess new monitoring equipment to
better measure mobile and stationary
source emissions. The MOA agencies
have also established a Clean Air
Technology Working Group to help
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bring together the necessary participants
(e.g., scientists, engineers, analysts and
agency specialists) to achieve the goals
of the MOA. 2009 State Strategy Status
Report, pp. 25–27. For the South Coast,
the focus has been on demonstrating
new technologies for goods movement
activities at a large intermodal rail yard
in the City of San Bernardino, and on
the more than 1,000 stationary and area
emission sources in the South Coast
(e.g., auto repair shops, transportation
facilities, concrete and aggregate
operations, military installations,
printing and coating operations, and
manufacturing facilities). See 2011
Ozone SIP Revision, p. A–9.
Other State programs that may
achieve emissions reductions to help
meet CARB’s 182(e)(5) commitment
include: potential co-benefits from
California’s climate change programs
where State legislation (Assembly Bill
32—Global Warming Solutions Act of
2006 (AB 32)) aims to reduce
Greenhouse Gas (GHG) in 2020 to 1990
levels or by about 30%; California’s Air
Quality Improvement Program (AQIP),
an incentive program that supports the
deployment of hybrid and zero-emission
vehicles and other advanced
technologies today in order to achieve
the large-scale reductions needed in the
future; and California’s annual research
program, which identifies projects and
provides funding to help provide timely
scientific and technical information
needed for air quality control programs.
In addition, the South Coast AQMD has
identified a clean energy strategy that
focuses agencies and business leaders
on using the cleanest technologies,
making efficient land-use decisions,
cleaner energy generation (solar and fuel
cells), modernizing old inefficient
power plants and improving building
energy use. See 2011 Ozone SIP
Revision, pp. A–10 to A–12.
In addition to its commitment to the
process discussed above, CARB has
committed to submit an 8-hour ozone
SIP revision by 2020 that will: (1)
Reflect modifications to the 2023
emission reduction target based on
updated science and (2) identify
additional strategies and implementing
agencies needed to achieve the needed
reductions by the beginning of the 2023
ozone season. See 2011 Ozone SIP
Revision, p. A–8.
CARB’s 2011 Ozone SIP Revision
updates and reaffirms both the ‘‘longterm strategy commitment to identify
and implement advanced technologies
to reduce ozone-forming emissions in
the State Strategy’’ and the State’s
enforceable commitment ‘‘to develop,
adopt, and submit contingency
measures by 2020 if advanced
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technology measures do not achieve
planned reductions.’’ See CARB
Resolution 11–22, July 21, 2011. Finally,
CARB has committed to meet annually
with EPA to discuss strategies to
maximize the clean air benefits of
emerging advanced technologies and to
provide annual summaries of strategies
and activities.25
The long-term strategy commitment
for the South Coast 8-Hour Ozone SIP
satisfies the two criteria in CAA section
182(e)(5)(A) and (B) as follows. First, as
mentioned above, the South Coast 8Hour Ozone SIP does not rely on any of
these new technology reductions to
demonstrate RFP in any milestone year
between 2008 and 2020. CARB has
committed to achieve 241 tpd of NOX
and 40 tpd of VOC reductions through
new technology measures approved
under section 182(e)(5) only in the
attainment year (2023). We note that the
amount and relative proportion of
reductions from measures scheduled for
long-term adoption under section
182(e)(5), as compared to measures
already adopted in regulatory form or
scheduled for near-term adoption,
should clearly decrease in any future
SIP update, and that EPA will not
approve a SIP revision that contains an
increase in the amount or relative
proportion of section 182(e)(5) new
technology measures without a
convincing showing in a SIP revision
that the technologies relied upon in the
near-term rules have been found to be
technologically infeasible or ineffective
in achieving emissions reductions in the
near term.
Second, CARB has submitted an
enforceable commitment to submit
adopted contingency measures to EPA
by 2020 as required by CAA section
182(e)(5). See CARB Resolution 11–22,
July 21, 2011. These contingency
measures must be adequate to produce
emissions reductions sufficient, in
conjunction with other approved plan
provisions, to achieve the periodic
emissions reductions required by CAA
sections 182(b)(1) or (c)(2) and
attainment by the applicable dates. See
CAA 182(e)(5). EPA will approve or
disapprove these contingency measures
in accordance with CAA section 110.
Based on the above discussion and
evaluations, we propose to determine
that the long-term strategy for the South
Coast 8-Hour Ozone SIP satisfies the
requirements of CAA 182(e)(5).
25 See letter, James Goldstene, Executive Officer,
CARB, to Jared Blumenfeld, Regional
Administrator, EPA Region 9, dated August 29,
2011.
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3. Proposed Actions on RACM
Demonstration and Control Strategy
As described above, the District
evaluated a range of potentially
available measures for inclusion in its
2007 Ozone Plan and committed to
adopt those it found to be reasonably
available for implementation in the
South Coast nonattainment area. The
process and the criteria the District used
to select certain measures and reject
others were consistent with EPA’s
RACM guidance. The evaluation
processes undertaken by SCAG and the
State were also consistent with EPA’s
RACM guidance. See e.g., General
Preamble at 13560 and Seitz memo.
Based on our review of these RACM
analyses and the District’s and
California’s adopted rules, as well as
their commitments to adopt and
implement additional control measures,
we propose to find that there are, at this
time, no additional reasonably available
control measures (including reasonably
available control technology) that would
advance attainment of the 1997 8-hour
ozone standard in the South Coast.
Therefore, we propose to find that the
South Coast 2007 AQMP, together with
the 2007 State Strategy, provide for the
implementation of all RACM as required
by CAA section 172(c)(1).
We propose to approve the
SCAQMD’s commitments to achieve
specific aggregate reductions of NOX
and VOC emissions by specific years as
given in Table 4–2A of the 2007 AQMP,
as revised by Tables 2 and 3 of the 2007
Progress Report, Appendix F, and as
shown in Table 2 above.
We propose to approve CARB’s
commitments to propose certain defined
measures, as given in Table B–1 in
Appendix B of the 2011 Progress Report,
and Appendix B, Table B–1 in the 2011
Ozone SIP Revision. We also propose to
approve CARB’s commitment to achieve
the total aggregate emissions reductions
necessary to demonstrate RFP and to
attain the 1997 8-hour ozone standard in
the South Coast nonattainment area, as
given in 2009 State Strategy Status
Report, p. 20 and CARB Resolution 07–
28, Attachment B, p. 4, and shown in
Table 6 above. See CARB Resolution
07–28 (September 27, 2007), Appendix
B, p. 4.
Finally, we are proposing to approve
CARB’s and the District’s long-term
strategy commitments in the South
Coast 2007 8-Hour Ozone Plan under
the new technology provisions of CAA
section 182(e)(5). This proposal is based
on our proposed findings that these
commitments satisfy the two criteria in
CAA section 182(e)(5)(A) and (B). First,
the South Coast 2007 8-Hour Ozone
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Plan does not rely on any of these new
technology reductions to demonstrate
RFP in any milestone year between 2008
and 2020. CARB has committed to
achieve 241 tpd of NOX and 40 tpd of
VOC reductions through new
technology measures approved under
section 182(e)(5) only in the attainment
year (2023). We note that the amount
and relative proportion of reductions
from measures scheduled for long-term
adoption under 182(e)(5), as compared
to measures already adopted in
regulatory form or scheduled for nearterm adoption, should clearly decrease
in any future SIP update, and that EPA
will not approve a SIP revision that
contains an increase in the amount or
relative proportion of 182(e)(5) new
technology measures without a
convincing showing in a SIP revision
that the technologies relied upon in the
near-term rules have been found to be
technologically infeasible or ineffective
in achieving emissions reductions in the
near-term.
Second, CARB has submitted an
enforceable commitment to submit
adopted contingency measures to EPA
by 2020 as required by CAA 182(e)(5).
See CARB Resolution 11–22, July 21,
2011. These contingency measures must
be adequate to produce emissions
reductions sufficient, in conjunction
with other approved plan provisions, to
achieve the periodic emissions
reductions required by CAA section
182(b)(1) or (c)(2) and attainment by the
applicable attainment date. See CAA
182(e)(5). Following the State’s
submittal of these contingency
measures, EPA will approve or
disapprove the provisions in accordance
with CAA section 110.
C. Attainment Demonstration
1. Requirements for Attainment
Demonstrations
CAA section 182(c)(2)(A) requires
states with ozone nonattainment areas
classified as serious or above to submit
plans that demonstrate attainment of the
applicable ambient air quality standard
as expeditiously as practicable but no
later than the outside date established in
the CAA.26 The attainment
demonstration is due within three years
of the area’s designation as
nonattainment (40 CFR 51.908), and
should include:
(1) Technical analyses that locate and
identify sources of emissions that are
26 EPA’s regulation at 40 CFR 51.903(a) translates
the maximum attainment periods in Table 1 of
section 181, which are specifically linked to
enactment of the 1990 CAA Amendments, for
purposes of attaining the 1997 8-hour ozone
NAAQS.
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contributing to violations of the 8-hour
ozone NAAQS within the
nonattainment area;
(2) adopted measures with schedules
for implementation and other means
and techniques necessary and
appropriate for attainment; and
(3) contingency measures required
under section 172(c)(9) of the CAA.
See 70 FR 71612 at 71624.
The requirements for the first two
items are described in the sections on
emissions inventories and RACM above
(sections IV.A. and IV.C.) and in the
sections on air quality modeling and
attainment demonstration that follow
immediately below. Requirements for
the third item are described in the
sections on the control strategy and the
contingency measures (sections V.B.
and V.F.), respectively.
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2. Air Quality Modeling in the South
Coast 2007 AQMP
Below, we discuss the applicable
statutory and regulatory requirements
for modeled attainment demonstrations
and EPA guidance on air quality
modeling for the 1997 8-hour ozone
standard, the air quality modeling
analysis supporting the attainment
demonstration in the State’s submittal,
and our evaluation of these modeling
analyses as part of the attainment
demonstration SIP.
a. CAA and Regulatory Requirements for
8-Hour Ozone Air Quality Modeling and
EPA Guidance
For any ozone nonattainment area
classified as serious or above, section
182(c)(2)(A) of the CAA specifically
requires the State to submit a modeled
attainment demonstration based on a
photochemical grid modeling evaluation
or any other analytical method
determined by the Administrator to be
at least as effective as photochemical
modeling. EPA’s ozone implementation
rule in 40 CFR section 51.908 also
specifies this requirement and in
addition requires that each attainment
demonstration meet the requirements of
section 51.112, including Appendix W
to 40 CFR part 51, as interpreted in EPA
guidance. See, e.g., ‘‘Guidance on the
Use of Models and Other Analyses for
Air Quality Goals in Attainment
Demonstrations for Ozone, PM2.5, and
Regional Haze,’’ April 2007 (hereafter
referred to as ‘‘EPA’s 2007 attainment
demonstration guidance documents’’).
These guidance documents describe the
criteria that an air quality model and its
application should meet to qualify for
use in an 8-hour ozone attainment
demonstration. For more detail on
EPA’s evaluation of the modeling in the
South Coast 8-hour ozone attainment
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demonstration, see the ‘‘Modeling and
Other Analyses Attainment
Demonstration’’ (section II.B.) of the
TSD for today’s proposal. The modeling
section of the TSD also includes a
complete list of applicable modeling
guidance documents. These documents
describe the components of the
attainment demonstration, explain how
the modeling and other analyses should
be conducted, and provide overall
guidance on the technical analyses for
attainment demonstrations.
As with any predictive tool, inherent
uncertainties are associated with
photochemical grid modeling. EPA’s
guidance recognizes these limitations
and provides recommended approaches
for considering other analytical
evidence to help assess whether
attainment of the NAAQS is likely. This
process is called a weight of evidence
(WOE) analysis.
EPA’s modeling guidance (updated in
1996, 1999, and 2002) discusses various
WOE analyses. EPA’s modeling
guidance was updated in 2005 and 2007
for the 1997 8-hour attainment
demonstration procedures to include a
WOE analysis as an integral part of any
attainment demonstration. This
guidance strongly recommends that all
attainment demonstrations include
supplemental analyses beyond the
recommended modeling. These
supplemental analyses would provide
additional information such as data
analyses, and emissions and air quality
trends, which would help strengthen
the conclusion based on the
photochemical grid modeling. A WOE
analysis is specifically recommended
for inclusion in any attainment
demonstration SIP where the modeling
results predict Future Design Values
(FDVs) ranging from 82 to less than 88
ppb (see EPA’s 2007 attainment
demonstration guidance documents).
b. 8-Hour Attainment Demonstration
Modeling and Weight of Evidence in the
South Coast 2007 AQMP
i. Photochemical Grid Modeling
Attainment Demonstration Results
a. Photochemical Grid Model. The
model selected for the Final 2007
AQMP attainment demonstrations is the
Comprehensive Air Quality Model with
Extensions (CAMx), version 4.4
(Environ, 2006), using Statewide Air
Pollution Research Center-99 (SAPRC–
99) gas phase mechanisms (Carter,
2000).27 The modeling system
(including the photochemical model,
27 Carter,
W.P.L., May 8, 2000a. Documentation of
the SAPRC–99 chemical mechanism for VOC
reactivity assessment. Report to the California Air
Resources Board, Contracts 92–329 and 95–308.
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Fmt 4701
Sfmt 4702
meteorological inputs, and chemical
mechanism) is consistent with the
previous advice of outside peer
reviewers. CAMx is a state-of-the-art air
quality model that can simulate ozone
and PM2.5 concentrations together in a
‘‘one-atmosphere’’ approach for
attainment demonstrations. CAMx is
designed to integrate the output from
both prognostic and diagnostic
meteorological models.
b. Episode Selection. Six
meteorological episodes from three
years are used as the basis for the plan.
The 2003 AQMP benefited from the
intensive monitoring conducted under
the 1997 Southern California Ozone
Study (SCOS 1997) where the August 4–
7, 1997 episode was the cornerstone of
the modeling analysis. One of the
primary modeling episodes that was
used in the 2003 AQMP, August 5–6,
1997, was also selected for this plan. In
addition, five episodes that occurred
during the Multiple Air Toxics
Exposure Study III (MATES–III)
sampling program in 2004 (August 7–8)
and 2005 (May 21–22, July 15–19,
August 4–6, and August 27–28) were
selected.
c. Model Performance. Model
performance was evaluated in three
zones in the South Coast Basin: the San
Fernando Valley; the eastern San
Gabriel, Riverside and San Bernardino
Valleys; and Los Angeles and Orange
County. Normalized Gross Bias,
Normalized Gross Error, and Peak
Prediction Accuracy were determined
for each area. Although not a
requirement for determining acceptable
model performance, the performance
statistics were compared to the EPA
performance goals presented in
guidance documents. The performance
goals for Normalized Gross Error and
Peak Prediction Accuracy were met in
the eastern San Gabriel, Riverside and
San Bernardino Valleys. In general, the
statistic for bias (Normalized Gross Bias)
tends to be negative, indicating that the
model tends to slightly under-predict
ozone. Based on their analysis, South
Coast concludes and EPA agrees that
model performance is acceptable for this
application.
ii. Modeling Approaches for the
SCAQMD Attainment Demonstration
CAMx simulations were conducted
for the base year 2002, and future-year
2023 baseline and controlled
emissions.28
28 Future year controlled emissions were
estimated from the baseline emissions using the
CEPA control factors for the simulations, are given
in Table V–4–4 of the 2007 South Coast AQMP,
Appendix V.
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The ozone attainment demonstration
relies on the use of site-specific relative
response factors (RRFs) being applied to
the 2002 weighted design values. The
RRFs are determined from the future
year controlled and the 2002 base year
simulations. The initial screening for
station days to be included in the
attainment demonstration included the
following criteria: (1) Having an
observed concentration equaling or
exceeding 85 ppb, and (2) a simulation
predicted base year (1997, 2004 or 2005)
concentration over 60 ppb. Additional
criteria were added to the selection
process as the simulations were
evaluated. A minimum of five episode
days are recommended to determine the
site specific RRF. The selection criteria
for the episode days and the process of
applying the RRFs to the CAMx
modeling are discussed in more detail
in the TSD for today’s action.
iii. Results of SCAQMD Modeling
The results of the attainment
demonstration for 2023 indicate that the
Federal 1997 8-hour ozone standard
would be attained by June 15, 2024 at
all monitors with the 2023 controlled
emissions inventory. The attainment
targets (420 tpd VOC and 114 tpd NOX)
are based on both short-term and longterm control measures. With controls in
place, it is expected that all stations in
the South Coast ozone nonattainment
area will meet the Federal 1997 8-hour
ozone standard in calendar year 2023
(i.e., by June 15, 2024). The east Basin
stations of Crestline and Fontana are
projected to have the highest 8-hour
ozone design values of 83 ppb and 81
ppb respectively. Both sites are
downwind receptors along the primary
wind transport route that moves
precursor emissions and developing
ozone eastward by the daily sea breeze.
Future year projections of ozone along
the northerly transport route through
the San Fernando Valley indicate that
the ozone design value in the Santa
Clarita Valley will be 74 ppb, which is
approximately 13 percent below the
standard, in 2023.
In addition to the monitor-based
attainment test, the AQMP includes an
unmonitored area analysis. This review
is intended to ensure that a control
strategy leads to reductions in ozone at
other locations which could have
baseline (and future) design values
exceeding the NAAQS were a monitor
deployed there. The unmonitored area
analysis indicates projected 2024
controlled 8-hour ozone design
concentrations at or below 84 ppb for all
grid cells in the South Coast Air Basin.
c. EPA’s Evaluation and Proposed
Conclusion on the Modeling
Demonstration
Our evaluation of the air quality
modeling analyses and supporting
information provided in the South Coast
2007 Ozone SIP indicate that the South
Coast area will attain the 1997 8-hour
ozone standard by its attainment date of
June 15, 2024. In addition to the
attainment demonstration provided in
the South Coast 2007 Ozone SIP, we
have considered supplemental technical
information, including ambient air
quality monitoring data, which was not
available at the time the attainment
modeling was performed by SCAQMD.
This information is discussed in more
detail in the TSD. The modeling shows
significant reductions in ozone from the
base period. The modeling predicts
values of 83 ppb or below at all of the
twenty ozone monitoring stations. The
most recent ambient air quality data that
we have reviewed indicate that the area
is on track to attain the 1997 8-hour
ozone standard by 2024. The peak ozone
design values have dropped from 128
ppb in 2000–2002 to 112 ppb in 2008–
2010.
Based on the analysis above and in
the TSD, EPA proposes to find that the
air quality modeling provides an
adequate basis for the RACM, RFP and
attainment demonstrations in the South
Coast 2007 8-Hour Ozone Plan.
3. Enforceable Commitments in the
Attainment Demonstration
Table 8 below summarizes the
measures that are relied upon in the
South Coast 2007 AQMP’s 8-hour ozone
attainment demonstration to achieve the
carrying capacities shown in Table 7.
57885
This attainment demonstration was
updated by the 2011 Ozone SIP revision
to reflect adjustments to future year
baseline inventories and adopted
controls.
TABLE 7—EMISSIONS CARRYING CA
PACITY ESTIMATES FOR THE SOUTH
COAST NONATTAINMENT AREA FOR
8-HOUR OZONE ATTAINMENT
[Tons/day, based on summer planning
inventory]
NOX
VOC
114
420
Source: South Coast 2007 AQMP, Table 5–
6, page 5–21.
As shown in Table 8, the majority of
emissions reductions the State projects
are needed for attaining the 8-hour
ozone standard in the South Coast
nonattainment area by 2024 come from
baseline measures. These baseline
measures include numerous adopted
District and State measures that
generally have been approved by EPA
either through the SIP process or the
CAA section 209 waiver process. See
Appendices A and B of the TSD for a
list of these measures. We have also
accounted for ARB’s improvements to
the emissions inventories, discussed
above in section IV.A, in the attainment
year baseline emissions level (see Table
8, row D). The remaining reductions
needed for attainment are to be achieved
through the District’s and CARB’s
enforceable commitments to achieve
aggregate emission reductions in the
South Coast either through defined
control measures or through their
commitments to develop new or
improved technologies under CAA
section 182(e)(5). Since the submittal of
the South Coast 2007 AQMP and 2007
State Strategy, the District and CARB
have adopted numerous control
measures that have significantly
reduced the amount of emissions
reductions that still need to be achieved
through these commitments. See Table
9.
TABLE 8—SUMMARY OF SOUTH COAST’S 8-HOUR OZONE ATTAINMENT DEMONSTRATION
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
[Tons per summer planning day]
VOC
NOX
A
B
C
D
..................
..................
..................
..................
E ..................
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Revised 2002 baseline emissions level ........................................................................
Attainment target level ..................................................................................................
Total reductions needed from 2002 baseline levels to demonstrate attainment (A–B)
Attainment year baseline emissions level (from 2011 Ozone SIP Revision Supplement, ‘‘new 2023 baseline’’).
Reductions from baseline measures and improvements to the emissions inventory
(A–D).
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1024 .......................
114 .........................
910 .........................
493 .........................
881
420
461
529
531 .........................
352
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Federal Register / Vol. 76, No. 180 / Friday, September 16, 2011 / Proposed Rules
TABLE 8—SUMMARY OF SOUTH COAST’S 8-HOUR OZONE ATTAINMENT DEMONSTRATION—Continued
[Tons per summer planning day]
VOC
NOX
F ..................
Reductions needed from control strategy measures including reductions from new
technologies (D–B).
379 .........................
109
Source: 2011 Ozone SIP Revision, Appendix B, and 2011 Ozone SIP Revision Supplement.
TABLE 9—REDUCTIONS NEEDED FOR ATTAINMENT REMAINING AS COMMITMENTS BASED ON SIP–CREDITABLE MEASURES
[Tons per summer planning day in 2023]
NOX
A
B
C
D
E
F
G
H
Total reductions needed from baseline and control strategy measures to attain .......................
Reductions from baseline measures and emissions inventory improvements ............................
Total reductions from approved measures (District—Table 2 above, and CARB—Table 5
above).
Total reductions remaining as commitments and reductions from new technology measures
(A–B–C).
Reductions remaining as CARB enforceable commitments 1 ......................................................
Reductions remaining as District enforceable commitments 2 .....................................................
Total reductions remaining as reductions from new technologies (CAA section 182(e)(5) ........
Percent of reductions needed for attainment from new control measures, not including reductions from new technologies [(E + F)/A].
VOC
910
531
7.7 + 114.7 =
122.4
256.6
461
352
15.3 + 15.9 = 31.2
14.3
1.5
241
2%
33.1
3.9
40
8%
77.8
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
1 Calculated by subtracting from CARB’s 2023 NO commitment of 141 tpd and VOC commitment of 54 tpd (Table 8) the adjustments to baseX
line from State and Federal sources from 2011 Ozone SIP Revision Supplement, Attachment 1 (12 tpd NOX, 5 tpd VOC) and emissions reductions from currently SIP-creditable State measures from Table 5 (114.7 tpd NOX, 15.9 tpd VOC).
2 From Table 2 above in section IV.B., difference between District commitments and SIP-creditable measures.
As shown in Table 9, reductions in
the projected baseline inventory from
measures already adopted by the
District and State (both prior to and as
part of the South Coast 2007 AQMP and
2007 State Strategy), which EPA has
approved/waived or proposed to
approve, provide the great majority of
the emissions reductions needed to
demonstrate attainment of the 1997 8hour ozone standard in the South Coast.
The balance is in the form of either
enforceable commitments to specific
aggregate emissions reductions by the
District and CARB, or emissions
reductions from new or improved
technologies under CAA section
182(e)(5). In this section, we discuss the
enforceable commitments that are a part
of the attainment demonstration in the
South Coast 2007 Ozone Plan.29
We believe that, with respect to the
2007 South Coast 8-hour Ozone SIP,
circumstances warrant the consideration
of enforceable commitments as part of
the attainment demonstration for the
South Coast. As shown in Table 9
above, a substantial portion of NOX
emissions reductions and the majority
29 Based on SIP-creditable measures adopted to
date, the South Coast 2007 Ozone Plan does not rely
on enforceable commitments to aggregate emissions
reductions to demonstrate RFP or to meet any other
applicable requirement of the CAA. Therefore, we
discuss here only those enforceable commitments
relied on to demonstrate attainment.
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of the VOC reductions needed to
demonstrate attainment in the South
Coast come from rules and regulations
that were adopted prior to 2007, i.e.,
from baseline measures. As a result of
these State and District efforts, most
sources in the South Coast
nonattainment area are currently subject
to stringent rules adopted and approved
by EPA prior to the development of the
2007 State Strategy and the South Coast
2007 AQMP, leaving few opportunities
(and generally more technologically and
economically challenging ones) to
further reduce emissions. In the South
Coast 2007 AQMP and the 2007 State
Strategy, the District and CARB
identified potential control measures
that could provide many of the
additional emissions reductions needed
for attainment. See 2007 Ozone Plan,
Chapter 5 and 2007 State Strategy,
Chapter 5. However, the timeline
needed to develop, adopt, and
implement these measures went beyond
the November 2007 submittal date of the
South Coast 8-hour Ozone SIP. These
circumstances warrant the District’s and
CARB’s reliance on enforceable
commitments as part of the attainment
demonstration in the South Coast 2007
AQMP and 2007 State Strategy.
Given the State’s demonstrated need
for reliance on enforceable
commitments, we now consider the
three factors EPA uses to determine
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whether the use of enforceable
commitments in lieu of adopted
measures to meet a CAA planning
requirements is approvable: (a) Does the
commitment address a limited portion
of the statutorily-required program; (b)
is the state capable of fulfilling its
commitment; and (c) is the commitment
for a reasonable and appropriate period
of time.
a. Commitments are a Limited Portion of
Required Reductions
For the first factor, we look to see if
the commitment addresses a limited
portion of a statutory requirement, such
as the amount of emissions reductions
needed to demonstrate attainment in a
nonattainment area. For this calculation,
reductions assigned to the new
technologies provision (CAA section
182(e)(5) are not counted as
commitments.30
As shown in Table 9 above, the
remaining portions of the emission
30 CAA section 182(e)(5) specifically allows EPA
to approve an attainment demonstration that relies
on reductions from new technologies. This
provision is separate from the requirement in CAA
section 172(c)(6) for enforceable emissions
limitations under which enforceable commitments
are considered. As a result, reductions attributed in
the attainment demonstration to new technologies
are not considered part of the State’s enforceable
commitments for purposes of determining the
percentage of reductions needed for attainment that
remain as commitments.
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reductions needed to demonstrate
attainment of the 1997 8-hour ozone
standard in the South Coast
nonattainment area (i.e., of the State’s
total enforceable commitments), after
accounting for State and District
measures approved/waived by EPA
since 2007 and emissions reduction
commitments assigned to CAA section
182(e)(5) measures, are 15.8 tpd NOX
and 37 tpd VOC. When compared to the
total reductions needed to demonstrate
attainment (not including the CAA
section 182(e)(5) reductions in the
attainment demonstration), the
remaining portion of the enforceable
commitments represents approximately
2 percent of the needed NOX reductions
and 8 percent of the needed VOC
reductions. Historically, EPA has
approved SIPs with enforceable
commitments in the range of 10 percent
or less of the total needed reductions for
attainment. See our approval of the SJV
PM10 Plan at 69 FR 30005 (May 26,
2004), the SJV 1-hour ozone plan at 75
FR 10420 (March 8, 2010), the HoustonGalveston 1-hour ozone plan at 66 FR
57160 (November 14, 2001), proposed
approval of the SJV 2007 PM2.5 SIP at 76
FR 41338 (July 13, 2011), and proposed
approval of the South Coast PM2.5 SIP at
76 FR 41562 (July 14, 2011). Thus, the
State’s commitment addresses a limited
proportion of the required emission
reductions.
b. The State Is Capable of Fulfilling its
Commitment
For the second factor, we consider
whether the District and State are
capable of fulfilling their commitments.
As discussed above, CARB has
adopted and submitted the 2009 State
Strategy Status Report and the 2011
Ozone SIP Revision which update and
revise the 2007 State Strategy. These
submittals show that CARB has made
significant progress in meeting its
enforceable commitments for the South
Coast 8-hour ozone nonattainment area
and several other nonattainment areas
in California. The District has also made
significant progress in meeting its
enforceable commitments for the
attainment year of 2023. It has adopted
rules that are projected to achieve
additional reductions of NOX and VOC
in future years as shown in Table 2
above. In addition to the rules discussed
above, both CARB and the District have
well-funded incentive grants programs
to reduce emissions from the on- and
off-road engine fleets. Reductions from
several of these programs have yet to be
quantified and/or credited in the
attainment demonstration. See, for
example, Tables 2 and 3 in Appendix F
of the 2011 Progress Report.
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Given the State’s and District’s efforts
to date to reduce emissions, we believe
that the State and District are capable of
meeting their enforceable commitments
to adopt measures that will reduce
emissions of NOX and VOC to the levels
needed to attain the 1997 8-hour ozone
standard in the South Coast 8-hour
ozone nonattainment area by the
attainment date, as shown in Table 9.
c. The Commitment Is for a Reasonable
and Appropriate Timeframe
For the third and last factor, we
consider whether the commitment is for
a reasonable and appropriate period of
time.
In order to meet the commitments to
adopt measures to reduce emissions to
the levels needed to attain the 1997 8hour ozone standard in the South Coast
nonattainment area by 2023, the South
Coast 2007 AQMP and 2007 State
Strategy include ambitious rule
development, adoption, and
implementation schedules. The State
has committed to adopt the rules
needed to achieve the few remaining
reductions by 2023. We believe that this
period is appropriate given the
technological and economic challenges
associated with the control measures
that will be needed to achieve these
reductions and the State’s required
procedures for development and
adoption of these measures. In addition,
these reductions are not needed to meet
earlier RFP targets and the adoption and
submission timeframe ensures adequate
time for implementation by the
beginning of the last full ozone season
(2023) prior to the June 15, 2024
attainment date. See Tables 2 and 4
above. Thus, the commitment is for a
reasonable and appropriate period of
time.
4. Proposed Action on Attainment
Demonstration
In order to approve a SIP’s attainment
demonstration, EPA must make several
findings.
First, we must find that the
demonstration’s technical bases,
including the emissions inventories and
air quality modeling, are adequate. As
discussed above in section IV.A and
IV.C.2, we are proposing to approve the
revised base year emissions inventory,
and to find the air quality modeling
adequate to support the attainment
demonstration.
Second, we must find that the SIP
provides for expeditious attainment
through the implementation of all
RACM. As discussed above in section
IV.C., we are proposing to approve the
RACM demonstration in the South
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57887
Coast 2007 AQMP as meeting the
requirements of CAA section 172(c)(1).
Third, we must find that the
emissions reductions that are relied on
for attainment are creditable and are
sufficient to provide for attainment. As
shown in Table 9, the South Coast 2007
AQMP relies primarily on adopted and
approved/waived rules to achieve the
emissions reductions needed to attain
the 1997 8-hour ozone standards in the
South Coast by June 15, 2024. The
balance of the reductions projected to be
needed for attainment is currently in the
form of enforceable commitments to
adopt measures to achieve aggregate
tonnage reductions of VOC or NOX in
the near term from available
technologies and measures, and an
enforceable commitment to adopt and
submit in the longer term measures
relying on the development and
deployment of new technologies that
will achieve specific aggregate tonnage
reductions of VOC and NOX.
EPA has previously accepted
enforceable commitments in lieu of
adopted control measures in attainment
demonstrations when the circumstances
warrant them and the commitments
meet three criteria. As discussed above
in section IV.C.3., we believe that
circumstances here warrant the
consideration of enforceable
commitments, and that the three criteria
are met: (1) The commitments constitute
a limited portion of the required
emissions reductions; (2) both the State
and District are capable of meeting their
commitments; and (3) the commitments
are for an appropriate timeframe. Based
on these evaluations, we are proposing
to approve the enforceable
commitments as part of the attainment
demonstration.
CAA section 182(e)(5) allows extreme
ozone nonattainment area plans under
certain conditions to include provisions
for the development of new
technologies in the SIP and allows EPA
to approve attainment demonstrations
based, in part, on those provisions. For
the reasons discussed in section IV.B.,
we propose to find that California has
met the conditions for relying on new
technology provisions in its attainment
demonstration for the South Coast
nonattainment area.
For the foregoing reasons, we propose
to approve the attainment
demonstration in the South Coast 2007
Ozone Plan.
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D. Reasonable Further Progress
Demonstration
1. Requirements for Reasonable Further
Progress
CAA Section 172(c)(2) requires that
plans for nonattainment areas shall
provide for reasonable further progress
(RFP). RFP is defined in section 171(1)
as ‘‘such annual incremental reductions
in emissions of the relevant air pollutant
as are required by [Part D—Plan
Requirements for Nonattainment Areas]
or may reasonably be required by the
Administrator for the purpose of
ensuring attainment of the applicable
[NAAQS] by the applicable date.’’ CAA
Section 182(b)(1) specifically requires
that ozone nonattainment areas that are
classified as moderate or above
demonstrate a 15 percent reduction in
ozone precursor emissions between the
years of 1990 and 1996. For ozone
nonattainment areas classified as
serious or higher, section 182(c)(2)(B)
also requires a 3 percent per year
reduction of ozone precursor emissions
until attainment, in addition to the 15
percent reduction required under CAA
182(b)(1).
CAA Section 182(b)(1)(D) prohibits
the state from including emissions
reductions from pre-1990 Federal motor
vehicle programs when demonstrating
RFP. In other words, the reductions
from these programs are not creditable
when demonstrating RFP.
The ozone implementation rule for
the 1997 8-hour ozone NAAQS
interprets the RFP requirements for the
purposes of the 1997 8-hour ozone
standards, establishing requirements for
RFP that depend on the area’s
classification as well as whether the
area has an approved 15 percent
reduction plan for the 1-hour ozone
standard that covers all of the 8-hour
ozone nonattainment area. See 40 CFR
51.910(a) and 70 FR 71612. In 1997,
EPA approved a 15 percent rate of
progress (ROP) plan for the South Coast,
which covers the entire nonattainment
area for the 1997 8-hour ozone standard.
See 62 FR 1150 (January 8, 1997). As a
result, the State does not need to
demonstrate another 15 percent
reduction in VOC for this area. Instead,
under the ozone implementation rule,
the 8-hour ozone SIP for South Coast
must provide for an average of 3 percent
per year of VOC and/or NOX emissions
reductions for (1) the 6-year period
beginning January 1 of the year
following the year used for the baseline
and (2) all remaining 3-year periods
after the first 6-year period out to the
area’s attainment date. 40 CFR
51.910(a)(1)(ii)(B). Except as specifically
provided in CAA section 182(b)(1)(C),
emissions reductions from all SIPapproved, federally promulgated, or
otherwise SIP-creditable measures that
occur after the baseline are creditable
for purposes of demonstrating that the
RFP targets are met.
The RFP demonstration must
calculate and exclude the non-creditable
reductions described in CAA
182(b)(1)(D). These non-creditable
reductions include emissions reductions
from pre-1990 Federal motor vehicle
programs. The method for calculating
the target emissions levels is found in
Appendix A to the preamble of the
ozone implementation rule. See 70 FR
71612 at 71696.
2. RFP Demonstration in the South
Coast 2007 AQMP
California has made several
submittals to address the RFP
requirement for the 1997 8-hour ozone
standard in the South Coast 8-hour
ozone nonattainment area. The original
RFP demonstration is in Chapter 6 of
the South Coast 2007 AQMP. The
demonstration addresses NOX and VOC
emissions and uses the 2002 annual
average inventory as the baseline
emissions inventory and 2023 as the
attainment year. See South Coast 2007
AQMP, Table 6–2A and 6–2B. CARB
submitted a revised RFP demonstration
for the South Coast 8-hour ozone
nonattainment area on July 29, 2011 as
part of the 2011 Ozone SIP Revision.
The 2011 submission reflected revisions
to several significant control measures
since the submission of the SIP in 2007,
as well as changes to the on-road diesel
and off-road construction emissions
estimates. Table 10 below summarizes
the South Coast ozone RFP
demonstration as revised by the 2011
Ozone SIP Revision.
TABLE 10—2011 REVISIONS TO THE 8-HOUR OZONE SIP REASONABLE FURTHER PROGRESS CALCULATIONS SOUTH
COAST
[Summer season, tons per day]
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
2002
Baseline ROG ................................................................................................
CA MVCP/RVP Adjustment ...........................................................................
RACT Corrections ..........................................................................................
Adjusted 2002 Baseline ROG in milestone year ...........................................
RFP commitment for ROG reductions from new measures .........................
Future Year ROG with existing and proposed measures .............................
Required % change since previous milestone year (ROG or NOX) compared to 2002 .............................................................................................
Required % change since 2002 (ROG or NOX) ............................................
Target ROG levels .........................................................................................
Apparent shortfall in ROG .............................................................................
Apparent shortfall in ROG, % ........................................................................
ROG shortfall previously provided by NOX substitution, % ..........................
Actual ROG shortfall, % .................................................................................
Baseline NOX .................................................................................................
CA MVCP Adjustment ...................................................................................
Adjusted 2002 Baseline NOX in milestone year ............................................
RFP commitment for NOX reductions from new measures ..........................
Change in NOX since 2002 ...........................................................................
Change in NOX since 2002, % ......................................................................
NOX reductions since 2002 already used for RFP substitution and contingency through last milestone year, % ........................................................
NOX reductions since 2002 available for RFP substitution and contingency
in this milestone year, % ............................................................................
Change in NOX since 2002 used for ROG substitution in this milestone
year, % .......................................................................................................
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2008
2011
2014
2017
2020
2023
880.5
0.0
0.0
880.5
0.0
..............
632.0
56.1
0.0
824.5
0.0
632.0
579.9
73.0
0.0
807.6
0.0
579.9
535.2
86.6
0.0
793.9
0.0
535.2
519.8
93.7
0.0
786.8
0.0
519.8
513.9
98.3
0.0
782.3
0.0
513.9
513.4.
101.6.
0.0.
778.9.
0.0.
513.4.
..............
..............
..............
..............
..............
..............
..............
1024.1
0.0
1024.1
0.0
..............
..............
18%
18%
676.1
¥44.1
¥5.3%
0%
¥5.3%
728.3
64.7
959.4
0.0
231.1
24.1%
9%
27%
599.8
¥19.9
¥2.5%
0.0%
¥2.5%
591.2
80.6
943.4
0.0
352.3
37.3%
9%
36%
533.4
1.7
0.2%
0.0%
0.2%
532.1
93.0
931.1
0.0
398.9
42.8%
9%
45%
479.0
40.8
5.2%
0.2%
5.0%
478.8
98.3
925.8
0.0
447.0
48.3%
9%
54%
431.7
82.2
10.5%
5.2%
5.3%
428.2
102.4
921.7
0.0
493.5
53.5%
9%.
63%.
389.8.
123.6.
15.9%.
10.5%.
5.4%.
378.4.
105.9.
918.2.
0.0.
539.7.
58.8%.
..............
0.0%
3.0%
3.0%
3.2%
8.2%
13.5%.
..............
24.1%
34.3%
39.8%
45.1%
45.4%
45.3%.
..............
0.0%
0.0%
0.2%
5.0%
5.3%
5.4%.
Sfmt 4702
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TABLE 10—2011 REVISIONS TO THE 8-HOUR OZONE SIP REASONABLE FURTHER PROGRESS CALCULATIONS SOUTH
COAST—Continued
[Summer season, tons per day]
2002
Change in NOX since 2002 available for contingency in this milestone
year, % .......................................................................................................
Change in NOX since 2002 surplus after meeting substitution and contingency needs in this milestone year, % ......................................................
RFP Met? .......................................................................................................
2008
2011
2014
2017
2020
2023
..............
3.0%
3.0%
3.0%
3.0%
3.0%
3.0%.
..............
..............
21.1%
YES
34.3%
YES
39.6%
YES
40.1%
YES
40.0%
YES
39.9%.
YES
Source: CARB 2011 Ozone SIP Revision, Appendix A, Table A–1.
3. Proposed Action on the RFP
Demonstration
CARB has correctly calculated the
RFP target levels for the appropriate
years following the method provided in
the ozone implementation rule and
preamble. See 40 CFR 51.910 and 70 FR
71612 at 71631–71650. As shown in
Table 10, the South Coast 2007 8-hour
Ozone SIP provides for RFP in each
milestone year, consistent with
applicable CAA requirements and EPA
guidance. We propose, therefore, to
approve the RFP demonstration under
sections 182(b)(1) and 182(c)(2) of the
CAA.
E. Transportation Control Strategies and
Transportation Control Measures and
Vehicle Miles Travelled Offset
Emissions Increases From VMT
Increases, To Provide for RFP and
Attainment
1. Requirements for Transportation
Control Strategies and Transportation
Control Measures To Offset Emissions
Growth, To Provide for RFP and
Attainment
CAA section 182(d)(1)(A) requires
that areas classified as severe or extreme
submit transportation control strategies
(TCSs) and transportation control
measures (TCMs) sufficient to offset any
growth in emissions from growth in
VMT or the number of vehicle trips, and
to provide (along with other measures)
the reductions needed to meet the
applicable RFP requirement. CAA
section 182(d)(1)(A) also requires that
states choose and implement such
measures as are specified in section
108(f), to the extent needed to
demonstrate attainment. In selecting the
measures, Congress directed that States
‘‘should ensure adequate access to
downtown, other commercial and
residential areas, and should avoid
measures that increase or relocate
emissions and congestion rather than
reduce them.’’ CAA 182(d)(1)(A).
EPA believes that it is appropriate to
treat the three required elements of
section 182(d)(1)(A) (i.e., offsetting
emissions growth, attainment of the RFP
reduction, and attainment of the ozone
NAAQS) as separable. As to the first
element of CAA section 182(d)(1)(A)
(i.e., offsetting emissions growth), EPA
has historically interpreted this CAA
provision to allow areas to meet the
requirement by demonstrating that
emissions from motor vehicles decline
each year through the attainment year.
General Preamble at 13521, 13522.31
2. Transportation Control Strategies and
Transportation Control Measures To
Offset Emissions Growth, To Provide for
RFP and Attainment in the South Coast
2007 Ozone SIP
Information in Table 6–12 on page
6–27 of the South Coast AQMP
reproduced in Table 11 shows that onroad motor vehicle emissions of VOC
and NOX decline steadily in the South
Coast from 2002 to 2023. This decline
in emissions is due to EPA’s and
California’s on-road mobile source
programs, California’s clean fuels and
SmogCheck programs, and CARB’s inuse truck and bus rule. As discussed
above in section IV.B, these programs
are fully creditable for SIP planning
purposes in attainment and RFP
demonstrations, including
demonstrating compliance with section
182(d)(1). The on-road emissions in
Table 11 are calculated using
EMFAC2007 (the most recent EPAapproved mobile source emissions
model in California) and the same
transportation activity projections used
to develop the RFP and attainment
demonstrations and transportation
conformity motor vehicle emissions
budgets in the South Coast 2007 Ozone
Plan. South Coast 2007 AQMP, p. 6–23
and 6–27.
TABLE 11—ON-ROAD MOTOR VEHICLE EMISSIONS IN THE SOUTH COAST 2002–2023
[Summer planning inventory, tons per day] 1 2
Baseline
Remaining
Year
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
VOC
2002
2003
2004
2005
2006
2007
2008
2009
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
31 See also 60 FR 48896 (September 21, 1995),
approval of Illinois’ vehicle miles traveled plan for
the Chicago area; 62 FR 23410 (April 30, 1997) and
62 FR 35100 (June 30, 1997), proposed and final
approval of New Jersey’s 15 percent ROP plan and
other provisions for the New York-New Jersey-
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NOX
360
341
321
302
273
243
214
199
Connecticut ozone nonattainment area; 66 FR 23849
(May 10, 2001), approval of New York’s attainment
demonstration and related provisions for the New
York-New Jersey-Connecticut ozone nonattainment
area; 66 FR 57247 (November 14, 2001), approval
of the VMT offset plan for the Houston-Galveston
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VOC
611
595
579
563
518
472
441
419
NOX
360
341
321
302
273
243
210
195
611
595
579
563
518
472
438
413
ozone nonattainment area; 70 FR 25688 (May 13,
2005), approval of the Washington, DC area’s 1-hour
attainment demonstration and related provisions;
and 70 FR 34358 (June 14, 2005), approval of
Atlanta’s VMT plan.
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TABLE 11—ON-ROAD MOTOR VEHICLE EMISSIONS IN THE SOUTH COAST 2002–2023—Continued
[Summer planning inventory, tons per day] 1 2
Baseline
Remaining
Year
VOC
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
.................................................................................................
VOC
NOX
186
176
166
157
148
142
135
129
124
119
114
110
107
103
95
379
355
331
309
287
269
250
232
216
200
184
176
169
161
146
NOX
164
154
144
135
126
119
113
109
101
96
93
91*
88*
86
76
330
291
252
219
191
174
162
160
135
120
112
78
52
27
24
Source: South Coast 2007 AQMP, Chapter 6, Table 6–12.
1 These values were incorrectly listed as 88 for 2021 and 85 for 2022 in the 2007 South Coast AQMP. See Letter, Elaine Chang, DrPH, Deputy Executive Officer, SCAQMD, to Wienke Tax, EPA Region 9, Air Division, dated August 12, 2011 in the docket for today’s action.
2 ’’Baseline’’ emissions account for controls adopted prior to the 2007 AQMP. ‘‘Remaining’’ emissions include the impacts of economic growth
and implementation of the plan’s control strategy.
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
As described above in section IV.B.,
SCAG evaluated a wide variety of
transportation control strategies and
measures, including those measures
listed in CAA section 108(f), and
determined that there were no
combinations of reasonable measures
that would expedite attainment of the 8hour ozone standard in the South Coast.
See South Coast 2007 AQMP, Appendix
IV–C.
3. Evaluation and Conclusions
Because both VOC and NOX
emissions from on-road mobile sources
decline steadily over the entire time
period covered by the South Coast 2007
Ozone Plan, the SIP need not include
additional TCSs and TCMs to offset
growth in motor vehicle emissions from
growth in VMT. We propose, therefore,
to find that the South Coast 2007 8-hour
ozone SIP, as corrected on August 12,
2011, meets the requirement in CAA
section 182(d)(1)(A) to include TCSs
and TCMs sufficient to offset any
growth in emissions from growth in
VMT or the number of vehicle trips.
In Association of Irritated Residents v.
EPA, 632 F.3d 584 (9th Cir. 2011), the
U.S. Court of Appeals for the Ninth
Circuit held that, with respect to the
first element, section 182(d)(1)(A) of the
CAA requires States to adopt
transportation control measures and
strategies whenever vehicle emissions
are projected to be higher than they
would have been had vehicle miles
traveled not increased, even when
aggregate vehicle emissions are actually
decreasing. EPA has filed a petition for
rehearing on this issue. Docket Nos. 09–
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71383 and 09–71404 (consolidated),
Docket Entry 41–1, Petition for Panel
Rehearing.
The Ninth Circuit has yet to issue its
mandate in the Association of Irritated
Residents case, and EPA has not
adopted the court’s interpretation for
the reasons set forth in the Agency’s
petition for rehearing, pending a final
decision by the court. If the court denies
the Agency’s petition for rehearing and
issues its mandate before EPA issues a
final rule on the South Coast 2007
Ozone SIP, then we anticipate that we
would not be able to finalize approval
of the South Coast 2007 Ozone SIP with
respect to the first element (i.e.,
offsetting emissions growth) of section
182(d)(1)(A). Therefore, in today’s
action, and in the alternative to the
proposed approval, we are
simultaneously proposing to disapprove
the South Coast 2007 Ozone SIP with
respect to the first element (i.e.,
offsetting emissions growth) of section
182(d)(1)(A) based on the plan’s failure
to include sufficient transportation
control strategies and TCMs to offset the
emissions from growth in VMT. If EPA
were to finalize the proposed
disapproval, the area would be eligible
for a protective finding under the
transportation conformity rule because
the submitted SIP contains adopted
control measures and enforceable
commitments that fully satisfy the
emissions reductions requirements for
reasonable further progress and
attainment.32 40 CFR 93.120(a)(3)
32 An area would not be eligible for a protective
finding under the transportation conformity
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As discussed above in section IV.D.,
we are proposing to find that the South
Coast 2007 8-Hour Ozone SIP provides
for RFP consistent with all applicable
CAA and EPA regulatory requirements.
Therefore, we also propose to find that
the SIP meets requirement in CAA
section 182(d)(1)(A) to include TCSs
and TCMs as necessary to provide
(along with other measures) the
reductions needed to meet the
applicable RFP requirement.
Finally, as discussed in section IV.B.
and IV.C. above, we are proposing to
find that the South Coast 2007 8-Hour
Ozone SIP provides for expeditious
attainment of the 1997 8-hour ozone
standard. Therefore, we propose to find
that the SIP meets the requirement in
CAA section 182(d)(1)(A) to include
strategies and measures to the extent
needed to demonstrate attainment.
F. Contingency Measures
1. Requirements for Contingency
Measures
Under the CAA, ozone nonattainment
areas classified under subpart 2 as
moderate or above must include in their
SIPs contingency measures consistent
with sections 172(c)(9) and 182(c)(9).
Contingency measures are additional
regulation if EPA finalizes a disapproval of a
control strategy implementation plan revision (i.e.,
a plan that demonstrates reasonable further progress
or attainment) because the plan revision does not
contain adopted control measures or written
commitments to enforceable control measures that
fully satisfy the emissions reductions requirements
relevant to the statutory provision for which the
implementation plan revision was submitted. 40
CFR 93.120(a)(3)
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measures to be implemented in the
event the area fails to meet an RFP
milestone or fails to attain by the
applicable attainment date. These
contingency measures must be fully
adopted rules or control measures that
are ready to be implemented quickly
upon failure to meet the milestones or
attainment. The SIP should contain
trigger mechanisms for the contingency
measures, specify a schedule for
implementation, and indicate that the
measure will be implemented without
significant further action by the State or
by EPA. See 68 FR 32802 at 32837 and
70 FR 71612 at 71650.
Additional guidance on the CAA
contingency measure provisions is
found in the General Preamble, 57 FR at
13510–13512 and 13520. The guidance
indicates that states should adopt and
submit contingency measures sufficient
to provide a 3 percent emissions
reduction from the adjusted RFP
baseline. EPA concludes this level of
reductions is generally acceptable to
offset emission increases while States
are correcting their SIPs. These
reductions should be beyond what is
needed to meet the attainment and/or
RFP requirement. States may use
reductions of either VOC or NOX or a
combination of both to meet the
contingency measure requirements. 57
FR at 13520, footnote 6.
EPA guidance provides that
contingency measures may be
implemented early, i.e., prior to the
milestone or attainment date.33
Consistent with this policy, States are
allowed to use excess reductions from
already adopted measures to meet the
CAA sections 172(c)(9) and 182(c)(9)
contingency measures requirement. This
is because the purpose of contingency
measures is to provide extra reductions
that are not relied on for RFP or
attainment, and that will provide a
cushion while the plan is being revised
to fully address the failure to meet the
required milestone. Nothing in the CAA
precludes a State from implementing
such measures before they are triggered.
This approach has been approved by
EPA in numerous SIPs. See 62 FR 15844
(April 3, 1997) (approval of the Indiana
portion of the Chicago area 15 percent
ROP plan); 62 FR 66279 (December 18,
1997) (approval of the Illinois portion of
the Chicago area 15 percent ROP plan);
66 FR 30811 (June 8, 2001) (proposed
approval of the Rhode Island post-1996
ROP plan); 66 FR 586 and 66 FR 634
(January 3, 2001) (approval of the
33 Memorandum, G.T. Helms, Chief, Ozone/
Carbon Monoxide Programs Branch to Air Directors,
‘‘Contingency Measures for Ozone and Carbon
Monoxide (CO) Redesignations,’’ June 1, 1992.
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Massachusetts and Connecticut 1-hour
ozone attainment demonstrations). In
the only adjudicated challenge to this
approach, the court upheld it. See LEAN
v. EPA, 382 F.3d 575 (5th Cir. 2004). 70
FR 71612 at 71651.
In addition, CAA section 182(e)(5)
authorizes EPA to ‘‘approve provisions
of an implementation plan for an
Extreme Area which anticipate
development of new control techniques
or improvement of existing control
techniques, and an attainment
demonstration based on such
provisions,’’ if the State meets certain
criteria. CAA 182(e)(5). Such plan
provisions may include enforceable
commitments to submit, at a later date,
contingency measures for failure to
attain under CAA section 172(c)(9), in
addition to the contingency measures to
be implemented if the anticipated
technologies approved under section
182(e)(5) do not achieve planned
reductions. These contingency measures
must be submitted no later than three
years before proposed implementation
of the plan provisions and approved or
disapproved by EPA in accordance with
CAA section 110. Id.
2. Contingency Measures in the South
Coast 2007 AQMP
The attainment plan for the South
Coast nonattainment area includes
contingency measures to be
implemented if the area fails to attain by
its attainment date or fails to meet RFP
requirements. The contingency
measures for the South Coast
nonattainment area are described in
Chapter 9 of the South Coast 2007
AQMP, discussed in more detail in
Appendix IV–A, section 2 of the AQMP,
and also discussed in Appendix D of the
2007 State Strategy as updated on
February 1, 2008. The provisions were
again updated in CARB’s 2011 Ozone
SIP Revision, Appendix A.
Contingency measures for failure to
make RFP. To provide for contingency
measures for failure to make RFP, the
SIP relies on surplus NOX reductions in
the RFP demonstration. See 2011 Ozone
SIP Revision, Attachment A, p. A–1. See
also Table 10 above.
Contingency measures for failure to
attain. To provide for contingency
measures for failure to attain, the SIP
relies on the additional incremental
emissions reductions resulting from
fleet turnover in calendar year 2024.
This includes the incremental
additional emissions reductions that
will occur in 2024 (the year after the
attainment year) from the continuing
implementation of both on- and off-road
motor vehicle controls. For the South
Coast, these reductions are 2 tpd of NOX
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57891
and 1 tpd of VOC. See CARB 2011
Ozone SIP Supplement, Attachment 2.
Additionally, as discussed above in
section IV.B., we are proposing to
determine that CARB and the SCAQMD
have satisfied the criteria in section
182(e)(5) for reliance on the new
technology provision as part of the
attainment demonstration in the South
Coast 8-Hour Ozone SIP. Based on the
State’s anticipated development of these
new technologies, CARB has submitted
an enforceable commitment to submit,
no later than 2020, additional
contingency measures under CAA
section 182(e)(5) that meet the
requirements for attainment
contingency measures in CAA section
172(c)(9), in addition to contingency
measures to be implemented if the
anticipated long-term measures
approved pursuant to section 182(e)(5)
do not achieve planned reductions.
CARB Resolution 11–22, July 2011, p. 4.
3. Proposed Action on the Contingency
Measures
Contingency measures for failure to
make RFP. As discussed above in
section IV.D., we are proposing to
approve the South Coast 2007 8-Hour
Ozone SIP’s RFP demonstration. As
seen from the RFP demonstration in
Table 10, there are sufficient excess
reductions of NOX in each milestone
year beyond those needed to meet the
next RFP percent reduction requirement
to provide the 3 percent of adjusted
baseline emissions reductions needed to
meet the RFP contingency measure
requirement for 2011, 2014, 2017, and
2020.
No RFP contingency measures are
needed for 2008, since the 2011 Ozone
SIP Revision demonstrates that South
Coast has already met its 2008
milestone. See Table 10 above. As a
result, contingency measures for failure
to meet the 2008 RFP benchmark would
never be triggered and thus are not
needed.
Contingency measures for failure to
attain. The incremental additional
emissions reductions that will occur in
2024 (the year after the attainment year)
from the continuing implementation of
both on- and off-road motor vehicle
controls may be used to meet the
contingency measure requirement for
failure to attain. For the South Coast,
these reductions are 2 tpd of NOX and
1 tpd of VOC. See 2011 Ozone SIP
Revision Supplement, Attachment 2.
In addition, based on our proposal to
determine that the State has satisfied the
criteria in section 182(e)(5) for reliance
on long-term measures as part of the
attainment demonstration in the South
Coast 8-Hour Ozone SIP, we propose to
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year, each required RFP year or last year
of the maintenance plan, as appropriate.
Budgets are generally established for
specific years and specific pollutants or
precursors.
Ozone attainment and RFP plans
establish budgets for NOX and VOC. See
40 CFR 93.102(b)(2)(i).
Before an MPO may use budgets in a
submitted SIP, EPA must first either
determine that the budgets are adequate
or approve the budgets. In order for us
to find the budgets adequate and
approvable, the submittal must meet the
conformity adequacy requirements of 40
CFR 93.118(e)(4) and (5) and be
approvable under all pertinent SIP
requirements. To meet these
requirements, the budgets must be
consistent with the approvable
attainment and RFP demonstrations and
reflect all of the motor vehicle control
measures contained in the attainment
and RFP demonstrations. See 40 CFR
93.118(e)(4)(iii), (iv) and (v).
G. Motor Vehicle Emissions Budgets for
Transportation Conformity
emcdonald on DSK5VPTVN1PROD with PROPOSALS3
approve CARB’s enforceable
commitment to submit no later than
2020, additional contingency measures
under CAA section 182(e)(5) which
meet the requirements for attainment
contingency measures in CAA section
172(c)(9), in addition to contingency
measures to be implemented if the
anticipated long-term measures
approved pursuant to section 182(e)(5)
do not achieve planned reductions.34
Accordingly, we propose to approve
the RFP and attainment contingency
measures in the South Coast 2007
Ozone SIP under CAA sections 172(c)(9)
and 182(c)(9), based in part on CARB’s
commitment to submit by 2020
additional contingency measures
meeting the requirements of CAA
sections 172(c)(9) and 182(e)(5).
Following the State’s submittal of these
additional contingency measures, EPA
will approve or disapprove the
provisions in accordance with CAA
section 110.
2. Motor Vehicle Emissions Budgets in
the South Coast 2007 8-Hour Ozone SIP
CAA Section 176(c) requires Federal
actions in nonattainment and
maintenance areas to conform to the
SIP’s goals of eliminating or reducing
the severity and number of violations of
the NAAQS and achieving expeditious
attainment of the standard. Conformity
to the SIP’s goals means that such
actions will not (1) cause or contribute
to violations of a NAAQS, (2) worsen
the severity of an existing violation, or
(3) delay timely attainment of any
NAAQS or any interim milestone.
Actions that involve Federal Highway
Administration (FHWA) or Federal
Transit Administration (FTA) funding
or approval are subject to EPA’s
transportation conformity rule, which is
codified in 40 CFR part 93, subpart A.
Under this rule, metropolitan planning
organizations (MPOs) in nonattainment
and maintenance areas coordinate with
state and local air quality and
transportation agencies, EPA, FHWA,
and FTA to demonstrate that an area’s
regional transportation plans (RTP) and
transportation improvement programs
(TIP) conform to the applicable SIP.
This demonstration is typically done by
showing that estimated emissions from
existing and planned highway and
transit systems are less than or equal to
the motor vehicle emissions budgets
(budgets) contained in the SIP. An
attainment, maintenance, or RFP SIP
establishes budgets for the attainment
As submitted on November 28, 2007,
the 2007 South Coast AQMP included a
set of ozone precursor budgets for VOC
and NOX for RFP years 2008, 2011,
2014, 2017 and 2020 and an attainment
year budget for 2023. On April 30, 2008,
CARB submitted a SIP revision that
replaced the original set of 8-hour ozone
budgets with two sets of replacement
budgets. CARB labeled these sets as
‘‘baseline’’ and ‘‘SIP-based’’ budgets
with sets of 8-hour ozone budgets for
RFP years 2008, 2011, 2014, 2017, 2020,
the attainment year 2023, and analysis
year 2030. See CARB Resolution 07–05,
which revised the budgets in the 2007
South Coast AQMP as adopted by the
District, and which was included in the
November 28, 2007 submission.
EPA Region 9 sent a letter to the
CARB on May 7, 2008 stating that the
‘‘baseline’’ motor vehicle emissions
budgets in the amended 2007 South
Coast SIP for the reasonable further
progress (RFP) milestone years of 2008,
2011, 2014, 2017, and 2020 were
adequate. We found the ‘‘SIP-based’’
motor vehicle emissions budgets in the
amended 2007 South Coast SIP
inadequate for transportation
conformity purposes. The amended
2007 South Coast SIP included ‘‘SIPbased’’ budgets for 2008, 2011, 2014,
2017, 2020, and 2023. The State has
included additional on-road mobile
source emissions reductions in the ‘‘SIP-
34 These contingency measures should, at a
minimum, ensure that an appropriate level of
emissions reduction progress continues to be made
if attainment is not achieved and additional
planning by the State is needed. See General
Preamble at 13524.
35 See electronic mail from Douglas Ito, Chief, Air
Quality and Transportation Planning Branch,
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based’’ budgets from the 2007 State
Strategy for the California SIP. The
‘‘baseline’’ budgets include no such
reductions but rather reflect emissions
reductions from CARB rules that were
adopted as of October 2006. EPA has
determined that the ‘‘SIP-based’’
budgets are inadequate because all of
the ‘‘SIP-based’’ budgets after 2009
include new emission reductions that
do not result from specific or
enforceable control measures. Our
notice of adequacy/inadequacy of the
budgets was published on May 15, 2008
at 73 FR 28110 (corrected on June 18,
2008 at 73 FR 34837), and was effective
on May 30, 2008. More information on
this finding can be found in the TSD for
today’s action.
CARB submitted revised budgets for
the South Coast nonattainment area and
their documentation in Appendices A
and C, respectively, of the 2011 Ozone
SIP Revisions. The revised budgets are
for NOX and VOC for the RFP years of
2011, 2014, 2017 and 2020, and the
attainment year of 2023. No budgets
were included for the RFP year of 2008
because it is no longer applicable as a
conformity analysis year. Additional
information associated with the motor
vehicle emission budget calculations
were provided in Attachment 1 of the
CARB Ozone SIP Revision supplement
and an electronic mail from CARB.35
3. Proposed Action on the Revised
Budgets
As part of its review of the budgets’
approvability, EPA has evaluated the
revised budgets using our adequacy
criteria in 40 CFR 93.318(e)(4) and (5).
As documented in Table H–3 in the
TSD, we found that they meet each
adequacy criterion. We have completed
our detailed review of the 2007 South
Coast 8-hour Ozone SIP and
supplemental submittals including the
2011 Ozone SIP Revision and 2011
Ozone SIP Supplement, and are
proposing to approve the SIP’s
attainment and RFP demonstrations. We
have also reviewed the proposed
budgets submitted with the 2011 Ozone
SIP Revision and have found that they
are consistent with the attainment and
RFP demonstrations, were based on
control measures that have already been
adopted and implemented, and meet all
other applicable statutory and
regulatory requirements including the
adequacy criteria in 40 CFR 93.118(e)(4)
and (5). Therefore, we are proposing to
CARB, to Elizabeth Adams, Deputy Director, Air
Division, EPA Region 9, dated August 11, 2011.
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approve the 2011, 2014, 2017, 2020, and
2023 budgets as shown in Table 12.
TABLE 12—MOTOR VEHICLE EMISSIONS BUDGETS IN THE SOUTH COAST 2007 8-HOUR OZONE SIP AS REVISED ON JULY
21, 2011
[Tons per summer day]
2011
2014
2017
2020
2023
VOC
South Coast Air Basin ......................................
NOX
VOC
NOX
VOC
NOX
VOC
NOX
VOC
NOX
172
328
136
277
119
224
108
185
99
140
Source: ‘‘8-Hour Ozone State Implementation Plan Revisions and Technical Revisions to the PM2.5 State Implementation Plan Transportation
Conformity Budgets for the South Coast and San Joaquin Valley Air Basins,’’ Appendix C, submitted July 29, 2011.
EPA is not required under its
transportation conformity rule to find
budgets adequate prior to proposing
approval of them. However, we will
complete the adequacy review of these
budgets either prior to or concurrently
with our final action on South Coast
2007 8-Hour Ozone SIP. We will also
post the revised budgets on EPA’s
adequacy review Web page.
If the budgets are found adequate and/
or the proposed approval of the budgets
is finalized, then these budgets will
replace the budgets previously found
adequate and SCAG and the U.S.
Department of Transportation will be
required to use the new budgets in
transportation conformity
determinations after the effective date of
the approval or adequacy finding,
whichever is earlier. For conformity
determinations, the plan emissions
should be used at the same level of
accuracy as in the revised updated
budgets from the plan (see Section H of
the TSD for more conformity
implementation details).
As stated in section IV.E., if we were
to finalize a disapproval with respect to
the plan’s section 182(d)(1)(A) element,
then the area would be eligible for a
protective finding under the
transportation conformity rule because
the submitted SIP contains adopted
control measures and enforceable
commitments that fully satisfy the
emissions reductions requirements for
reasonable further progress and
attainment. 40 CFR 93.120(a)(3).
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H. Other Clean Air Act Requirements
Applicable to Extreme Ozone
Nonattainment Areas
In addition to the requirements
discussed above, Title I, subpart D of the
CAA includes other provisions
applicable to extreme ozone
nonattainment areas such as the South
Coast nonattainment area. Below, we
discuss the current status of each of
these requirements for informational
purposes only.
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1. Enhanced Vehicle Inspection and
Maintenance (I/M) Requirement
CAA section 182(c)(3) requires states
with ozone nonattainment areas
classified under subpart 2 as serious or
above to implement an enhanced motor
vehicle inspection and maintenance (I/
M) program in those areas. The
requirements for those programs are
provided in section 182(c)(3) and 40
CFR part 51, subpart S.
On July 1, 2010 (75 FR 38023), EPA
approved California’s inspection and
maintenance program in the South
Coast as meeting the requirements of the
CAA and applicable EPA regulations for
enhanced I/M programs.
2. Reformulated Gasoline Program
As an extreme ozone nonattainment
area for the 1-hour ozone standard, the
South Coast was covered under the
Federal reformulated gasoline (RFG)
program. See CAA section 211(k)(10)(D).
As an 8-hour ozone nonattainment area,
the South Coast continues to be covered
under the Federal RFG program. See 40
CFR 80.70(m)(1)(i) and 70 FR 71685.
California has its own RFG program
(California Phase III RFG (CaRFG3)),
which also applies in the South Coast
nonattainment area. EPA approved
CaRFG3 program into the California SIP
on May 12, 2010. See 75 FR 26633.
3. New Source Review
CAA section 182(a)(2)(C) requires
states to develop SIP revisions
containing permit programs for each of
its ozone nonattainment areas. The SIP
revisions are to include requirements for
permits in accordance with CAA
172(c)(5) and 173 for the construction
and operation of each new or modified
major stationary source (with respect to
ozone) anywhere in the nonattainment
area. See also CAA section 182(e). EPA’s
implementing regulations for
nonattainment new source review (NSR)
programs are in 40 CFR 51.165, and
guidance specific to ozone
nonattainment areas was provided in
the preamble to the 8-hour ozone
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implementation rule, 70 FR 71612 at
71671–71684.
On December 4, 1996 (61 FR 64291),
EPA approved SCAQMD’s NSR rules
(the District’s Regulation XIII) for the
South Coast air basin as satisfying the
NSR requirements in title I, part D of the
CAA for ‘‘extreme’’ ozone
nonattainment areas. See also 64 FR
13514 (March 19, 1999) and 71 FR
35157 (June 19, 2006).
4. Clean-fuel Vehicle Program
CAA sections 182(c)(4)(A) and 246
require states to submit a SIP revision
for EPA approval that includes
measures to implement the Clean-Fuel
Vehicle Program in serious and above
ozone nonattainment areas. Section
182(c)(4)(B) of the Act allows states to
‘‘opt-out’’ of the clean-fuel vehicle fleet
program by submitting for EPA approval
a SIP revision consisting of a program or
programs that will result in at least
equivalent long term reductions in
ozone-producing and toxic air
emissions.
In 1994, CARB submitted a SIP
revision to opt-out of the Federal clean
fuel fleet program demonstrating that its
low-emission vehicle (LEV) program
achieved emission reductions at least as
large as the Federal program would. We
approved the substitution of the LEV
program for a Clean Fuel Fleet program
into the California SIP on August 27,
1999. See 64 FR 46849.
5. Gasoline Vapor Recovery
CAA section 182(b)(3) mandates that
States submit a revised SIP by
November 15, 1992 that requires owners
or operators of gasoline dispensing
systems to install and operate gasoline
vehicle refueling vapor recovery (‘‘Stage
II’’) systems in ozone nonattainment
areas classified as moderate and above.
See General Preamble at 13514.
California’s ozone nonattainment areas
had implemented Stage II vapor
recovery well before the passage of the
CAA Amendments of 1990.
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Under California State law (Health
and Safety Code Section 41954), CARB
is required to adopt procedures and
performance standards for controlling
gasoline emissions from gasoline
marketing operations, including transfer
and storage operations. State law also
authorizes CARB, in cooperation with
districts, to certify vapor recovery
systems, to identify defective
equipment, and to develop test
methods. CARB has adopted numerous
revisions to its vapor recovery program
regulations. See Table A–7 in Appendix
A to the TSD for today’s action. See also
CARB’s Web site, https://
www.evrhome.org.
In the South Coast, the installation
and operation of ARB-certified vapor
recovery equipment is required and
enforced by SCAQMD Rules 461 and
462, the latest versions of which were
approved into the SIP on April 11, 2006
and July 21, 1999, respectively. See 71
FR 18216 (April 11, 2006) and 64 FR
39037 (July 21, 2006).
6. Enhanced [Ambient Air Quality]
Monitoring
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CAA Section 182(c)(1) requires that
all ozone nonattainment areas classified
as serious or above implement measures
to enhance and improve monitoring for
ambient concentrations of ozone, NOX,
and VOCs, and to improve monitoring
of emissions of NOX and VOCs.
The South Coast Photochemical
Assessment Monitoring Station (PAMS)
network was initiated in 1994 at two
monitoring sites in the Basin and
subsequently expanded through 2001.
The SCAQMD’s Annual Air Quality
Monitoring Network Plan (July 2010)
describes the steps the state has taken to
address the requirements of CAA
section 182(c)(1). Pages 4 through 6 and
17 of the monitoring network plan
describe the South Coast Air Basin’s
PAMS network.36 37 We have
determined that the SCAQMD’s PAMS
network meets EPA requirements for
enhanced monitoring programs.38 More
detail is provided in the TSD for today’s
action.
36 Starting in 2007, EPA’s monitoring rules (see 71
FR 61236), October 17, 2006) required the submittal
and EPA action on annual monitoring network
plans.
37 SCAQMD’s 2010 monitoring network plan can
be found in the docket for today’s action.
38 See SCAMQD’s 2010 monitoring network plan
and letter, Matthew Lakin, Chief, Air Quality
Analysis Office, EPA Region 9, to Dr. Chung Liu,
Deputy Executive Officer, SCAQMD, dated
November 1, 2010, approving the 2009 South Coast
Air Quality Monitoring Network Plan.
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7. Clean Fuels or Advanced Control
Technology for Boilers
CAA section 182(e)(3) provides that
SIPs for extreme areas must require each
new, modified, and existing electric
utility and industrial and commercial
boiler that emits more than 25 tons per
year (tpy) of NOX to either burn as its
primary fuel natural gas, methanol, or
ethanol (or a comparably low polluting
fuel), or use advanced control
technology (such as catalytic control
technology or other comparably
effective control methods). Further
guidance on this requirement is
provided in the General Preamble at
13523. According to the General
Preamble, a boiler should generally be
considered as any combustion
equipment used to produce steam and
generally does not include a process
heater that transfers heat from
combustion gases to process streams.
General Preamble at 13523, 13524. In
addition, boilers with rated heat inputs
less that 15 million Btu (MMBtu) per
hour which are oil- or gas-fired may
generally be considered de minimis and
exempt from these requirements since it
is unlikely that they will exceed the 25
tpy NOX emission limit. General
Preamble at 13524.
The South Coast 2007 AQMP does not
directly address CAA section 182(e)(3)
requirements for 8-hour ozone. CARB
has previously submitted SIP revisions
for the South Coast Air Basin addressing
the clean fuels for boilers requirement
under section 182(e)(3) for the 1-hour
ozone standard. See 61 FR 57775
(November 8, 1996) for EPA’s approval
of the rule submitted to satisfy the CAA
section 182(e)(3) requirement in the
South Coast.
South Coast Rule 1146 ‘‘Emissions of
Oxides of Nitrogen from Industrial,
Institutional and Commercial Boilers,
Steam Generators and Process Heaters,’’
as revised on November 17, 2000 and
approved by EPA on April 8, 2002 (67
FR 16640), regulates emissions from
boilers larger than 5 MMBtu/hour
burning gaseous or non-gaseous fuels.
The limits in the rule range between
0.036 and 0.052 lb/MMBtu, depending
on the size of the boiler and its capacity
factor. This limit is lower than the level
of emissions expected from
uncontrolled natural gas-fired boilers.
Thus, the rule essentially requires all
subject boilers to burn fuels that are
comparably low polluting (compared to
natural gas combustion) or to use
control technologies to achieve
emissions levels that are similar to those
obtained by burning natural gas,
methanol, ethanol, or other comparably
low polluting fuels.
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South Coast Regulation XIII (New
Source Review (NSR) Program).
Regulation XIII (consisting of Rules
1301, 1302, 1303, 1304, 1306, 1309,
1309.1, 1310, and 1313), which EPA has
approved into the South Coast portion
of the California SIP (see 61 FR 64291,
December 4, 1996), applies to any new
or modified boiler proposing to locate in
the South Coast that emits or has the
potential to emit at least 10 tons per
year (tpy) of NOX or VOC, among other
sources. See Rules 1301 and 1302.
Under Rule 1303, any such boiler is
required to employ Best Available
Control Technology, which must be at
least as stringent as the Lowest
Achievable Emissions Rate (LAER) as
defined in CAA section 171(3). See Rule
1302(f) and 1303(a). The LAER standard
essentially requires, at a minimum,
combustion of low-polluting fuels and/
or use of advanced control technologies
consistent with the requirements of
CAA section 182(e)(3). See CAA
171(3).39 Accordingly, the SCAQMD’s
SIP-approved NSR program in
Regulation XIII, which establishes
LAER-level control requirements for any
new or modified boiler that emits more
than 10 tpy of NOX, satisfies the
requirements of CAA section 182(e)(3)
for each new or modified electric utility
and industrial and commercial boiler
that emits more than 25 tpy of NOX. As
to existing boilers that emit more than
25 tpy of NOX, the District has
demonstrated that each such boiler
currently operating in the South Coast
either burns as its primary fuel natural
gas or a comparably low polluting fuel,
or uses advanced control technology
such as SCR or another comparably
effective control method (e.g., SNCR), in
accordance with SIP-approved
requirements such as Rule 1146. See
letter, Elaine Chang, DrPH, Deputy
Executive Officer, SCAQMD, to
Elizabeth Adams, Deputy Director, Air
Division, EPA Region 9, dated August
23, 2011.
8. CAA Section 185 Fee Program
CAA Section 185 requires that the SIP
for each severe and extreme ozone
nonattainment area provide that, if the
area fails to attain by its applicable
attainment date, each major stationary
source of VOCs and NOX located in the
39 Section 171(3) of the CAA defines LAER, in
relevant part, as ‘‘that rate of emissions which
reflects—(A) the most stringent emission limitation
which is contained in the implementation plan of
any State for such class or category of source, unless
the owner or operator of the proposed source
demonstrates that such limitations are not
achievable, or (B) the most stringent emission
limitation which is achieved in practice by such
class or category of source, whichever is more
stringent.’’
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nonattainment area shall pay a fee to the
State as a penalty for such failure for
each calendar year beginning after the
attainment date, until the area is
redesignated as an attainment area for
ozone. States are not yet required to
implement CAA section 185 fee
programs for the 1997 8-hour ozone
standard.40
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V. EPA’s Proposed Actions
For the reasons discussed above, EPA
is proposing to fully approve
California’s attainment SIP for the South
Coast nonattainment area for the 1997 8hour ozone standard. Simultaneously
and in the alternative, EPA is proposing
to disapprove the submitted SIP with
respect to certain requirements for
transportation control strategies and
TCMs pending resolution of petitions
before the 9th Circuit U.S. Court of
Appeals in Association of Irritated
Residents v. EPA, 632 F.3d 584 (9th Cir.
2011). This SIP submittal consists of the
South Coast 2007 AQMP (as revised
March 4, 2011) and those portions of
CARB’s revised 2007 State Strategy as
revised in 2009 and 2011 that address
the CAA’s requirements for attainment
of the 1997 8-hour ozone NAAQS in the
South Coast nonattainment area.
Specifically, EPA is proposing to
approve under CAA section 110(k)(3)
the following elements of the South
Coast 2007 8-Hour Ozone Plan:
1. The revised 2002 base year
emissions inventory as meeting the
requirements of CAA section 182(a)(1)
and 40 CFR 51.915;
2. The reasonably available control
measure demonstration as meeting the
requirements of CAA section 172(c)(1)
and 40 CFR 51.912(d);
3. The reasonable further progress
demonstration as meeting the
requirements of CAA sections 172(c)(2)
and 182(c)(2)(B) and 40 CFR 51.910;
4. The attainment demonstration as
meeting the requirements of CAA
section 182(c)(2)(A) and 40 CFR 51.908;
5. The provisions for the development
of new technologies pursuant to CAA
section 182(e)(5) and CARB’s
commitment to adopt and submit by
2020 contingency measures to be
implemented if the new technologies do
not achieve the planned emissions
reductions, as well as additional
attainment contingency measures
meeting the requirements of CAA
section 172(c)(9), pursuant to CAA
section 182(e)(5); and to develop and
submit by 2020, revisions to the SIP that
40 SCAQMD submitted Rule 317, ‘‘Clean Air Act
Non-attainment Fees,’’ a fee-equivalent program to
address the requirements of section 185 for the 1hour ozone standard, on April 22, 2011.
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will (1) reflect modifications to the 2023
emission reduction target based on
updated science and (2) identify
additional strategies and implementing
agencies needed to achieve the needed
reductions by the beginning of the 2023
ozone season.
6. The contingency measure
provisions for failure to make RFP and
to attain as meeting the requirements of
CAA sections 172(c)(9) and 182(c)(9);
7. The demonstration that the SIP
provides for transportation control
strategies and measures sufficient to
offset any growth in emissions from
growth in VMT or the number of vehicle
trips, and to provide for RFP and
attainment, as meeting the requirements
of CAA section 182(d)(1)(A);
8. The revised motor vehicle
emissions budgets for the RFP milestone
years of 2011, 2014, 2017 and 2020, and
for the attainment year of 2023, because
they are derived from approvable RFP
and attainment demonstrations and
meet the requirements of CAA sections
176(c) and 40 CFR part 93, subpart A;
9. The SCAQMD’s commitments to
achieve specific aggregate emission
reductions of NOX and VOC as listed in
Table 4–2A of the South Coast 2007
AQMP (as revised March 4, 2011); and
10. CARB’s commitments to propose
certain defined measures, as listed in
Table B–1 on page 1 of Appendix B of
the 2011 Progress Report and in
Appendix B, Table B–1 of the 2011
Ozone SIP Revision, to achieve specific
aggregate emission reductions of VOC
and NOX in the South Coast
nonattainment area by 2023 as provided
in CARB Resolution 07–28, Attachment
B, and the 2009 State Strategy update,
p. 20; and to achieve the emissions
reductions needed to attain the 8-hour
ozone standard in the South Coast
nonattainment area as provided in
CARB Resolution 07–28, Attachment B,
p. 4, 2009 State Strategy Status Report,
p. 20.
Simultaneously and in the alternative,
if the U.S. Court of Appeals for the 9th
Circuit denies the Agency’s petition for
rehearing in AIR v. EPA and issues its
mandate before EPA issues a final rule
on the South Coast 2007 Ozone SIP, we
propose to disapprove the SIP under
CAA section 110(k)(3) with respect to
the first element (i.e., offsetting
emissions growth) of CAA section
182(d)(1)(A) based on the plan’s failure
to include sufficient transportation
control strategies and TCMs to offset the
emissions from growth in VMT.
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57895
VI. Statutory and Executive Order
Reviews
A. Executive Order 12866, Regulatory
Planning and Review
The Office of Management and Budget
(OMB) has exempted this regulatory
action from Executive Order 12866,
entitled ‘‘Regulatory Planning and
Review.’’
B. Paperwork Reduction Act
This action does not impose an
information collection burden under the
provisions of the Paperwork Reduction
Act, 44 U.S.C. 3501 et seq. Burden is
defined at 5 CFR 1320.3(b).
C. Regulatory Flexibility Act
The Regulatory Flexibility Act (RFA)
generally requires an agency to conduct
a regulatory flexibility analysis of any
rule subject to notice and comment
rulemaking requirements unless the
agency certifies that the rule will not
have a significant economic impact on
a substantial number of small entities.
Small entities include small businesses,
small not-for-profit enterprises, and
small governmental jurisdictions.
This proposed rule will not have a
significant impact on a substantial
number of small entities because
proposed SIP approvals under section
110 and subchapter I, part D of the
Clean Air Act do not create any new
requirements but simply propose to
approve requirements that the State is
already imposing. Therefore, because
this proposed Federal SIP approval does
not create any new requirements, I
certify that this action will not have a
significant economic impact on a
substantial number of small entities.
Moreover, due to the nature of the
Federal-State relationship under the
Clean Air Act, preparation of flexibility
analysis would constitute Federal
inquiry into the economic
reasonableness of State action. The
Clean Air Act forbids EPA to base its
actions concerning SIPs on such
grounds. Union Electric Co., v. U.S.
EPA, 427 U.S. 246, 255–66 (1976); 42
U.S.C. 7410(a)(2).
D. Unfunded Mandates Reform Act
Under sections 202 of the Unfunded
Mandates Reform Act of 1995
(‘‘Unfunded Mandates Act’’), signed
into law on March 22, 1995, EPA must
prepare a budgetary impact statement to
accompany any proposed or final rule
that includes a Federal mandate that
may result in estimated costs to State,
local, or tribal governments in the
aggregate; or to the private sector, of
$100 million or more. Under section
205, EPA must select the most cost-
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effective and least burdensome
alternative that achieves the objectives
of the rule and is consistent with
statutory requirements. Section 203
requires EPA to establish a plan for
informing and advising any small
governments that may be significantly
or uniquely impacted by the rule.
EPA has determined that the
proposed approval action does not
include a Federal mandate that may
result in estimated costs of $100 million
or more to either State, local, or tribal
governments in the aggregate, or to the
private sector. This Federal action
proposes to approve pre-existing
requirements under State or local law,
and imposes no new requirements.
Accordingly, no additional costs to
State, local, or tribal governments, or to
the private sector, result from this
action.
E. Executive Order 13132, Federalism
Federalism (64 FR 43255, August 10,
1999) revokes and replaces Executive
Orders 12612 (Federalism) and 12875
(Enhancing the Intergovernmental
Partnership). Executive Order 13132
requires EPA to develop an accountable
process to ensure ‘‘meaningful and
timely input by State and local officials
in the development of regulatory
policies that have federalism
implications.’’ ‘‘Policies that have
federalism implications’’ is defined in
the Executive Order to include
regulations that 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.’’ Under
Executive Order 13132, EPA may not
issue a regulation that has federalism
implications, that imposes substantial
direct compliance costs, and that is not
required by statute, unless the Federal
government provides the funds
necessary to pay the direct compliance
costs incurred by State and local
governments, or EPA consults with
State and local officials early in the
process of developing the proposed
regulation. EPA also may not issue a
regulation that has federalism
implications and that preempts State
law unless the Agency consults with
State and local officials early in the
process of developing the proposed
regulation.
This proposed rule 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
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levels of government, as specified in
Executive Order 13132, because it
merely proposes to approve a State rule
implementing a Federal standard, and
does not alter the relationship or the
distribution of power and
responsibilities established in the Clean
Air Act. Thus, the requirements of
section 6 of the Executive Order do not
apply to this rule.
F. Executive Order 13175, Coordination
With Indian Tribal Governments
Executive Order 13175, entitled
‘‘Consultation and Coordination with
Indian Tribal Governments’’ (65 FR
67249, November 9, 2000), requires EPA
to develop an accountable process to
ensure ‘‘meaningful and timely input by
tribal officials in the development of
regulatory policies that have tribal
implications.’’ This proposed rule does
not have tribal implications, as specified
in Executive Order 13175. It will not
have substantial direct effects on tribal
governments, on the relationship
between the Federal government and
Indian tribes, or on the distribution of
power and responsibilities between the
Federal government and Indian tribes.
Thus, Executive Order 13175 does not
apply to this rule.
EPA specifically solicits additional
comment on this proposed rule from
tribal officials.
G. Executive Order 13045, Protection of
Children From Environmental Health
Risks and Safety Risks
EPA interprets Executive Order 13045
(62 FR 19885, April 23, 1997) as
applying only to those regulatory
actions that concern health or safety
risks, such that the analysis required
under section 5–501 of the Executive
Order has the potential to influence the
regulation. This proposed rule is not
subject to Executive Order 13045,
because it proposes to approve a State
rule implementing a Federal standard.
H. Executive Order 13211, Actions That
Significantly Affect Energy Supply,
Distribution, or Use
This proposed rule is not subject to
Executive Order 13211, ‘‘Actions
Concerning Regulations That
Significantly Affect Energy Supply,
Distribution, or Use’’ (66 FR 28355, May
22, 2001) because it is not a significant
regulatory action under Executive Order
12866.
I. National Technology Transfer and
Advancement Act
Section 12 of the National Technology
Transfer and Advancement Act
PO 00000
Frm 00026
Fmt 4701
Sfmt 9990
(NTTAA) of 1995 requires Federal
agencies to evaluate existing technical
standards when developing a new
regulation. To comply with NTTAA,
EPA must consider and use ‘‘voluntary
consensus standards’’ (VCS) if available
and applicable when developing
programs and policies unless doing so
would be inconsistent with applicable
law or otherwise impractical.
The EPA believes that VCS are
inapplicable to this action. Today’s
action does not require the public to
perform activities conducive to the use
of VCS.
J. Executive Order 12898: Federal
Actions To Address Environmental
Justice in Minority Populations and
Low-Income Population
Executive Order (EO) 12898 (59 FR
7629 (Feb. 16, 1994)) establishes Federal
executive policy on environmental
justice. Its main provision directs
Federal agencies, to the greatest extent
practicable and permitted by law, to
make environmental justice part of their
mission by identifying and addressing,
as appropriate, disproportionately high
and adverse human health or
environmental effects of their programs,
policies, and activities on minority
populations and low-income
populations in the United States. EPA
lacks the discretionary authority to
address environmental justice in this
rulemaking. In reviewing SIP
submittals, EPA’s role is to approve or
disapprove State choices, based on the
criteria of the CAA. Accordingly, this
action merely proposes to approve
certain State requirements for inclusion
into the SIP under CAA section 110 and
subchapter I, part D will not in-and-of
itself create any new requirements.
Accordingly, it does not provide EPA
with the discretionary authority to
address, as appropriate,
disproportionate human health or
environmental effects, using practicable
and legally permissible methods, under
Executive Order 12898.
List of Subjects in 40 CFR Part 52
Environmental protection, Air
pollution control, Nitrogen dioxide,
Ozone, Reporting and recordkeeping
requirements, Volatile organic
compounds.
Authority: 42 U.S.C. 7401 et seq.
Dated: September 7, 2011.
Jared Blumenfeld,
Regional Administrator, EPA Region 9.
[FR Doc. 2011–23659 Filed 9–15–11; 8:45 am]
BILLING CODE 6560–50–P
E:\FR\FM\16SEP3.SGM
16SEP3
Agencies
[Federal Register Volume 76, Number 180 (Friday, September 16, 2011)]
[Proposed Rules]
[Pages 57872-57896]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-23659]
[[Page 57871]]
Vol. 76
Friday,
No. 180
September 16, 2011
Part IV
Environmental Protection Agency
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40 CFR Part 52
Approval of Air Quality Implementation Plans; California; South Coast;
Attainment Plan for 1997 8-Hour Ozone Standard; Proposed Rule
Federal Register / Vol. 76 , No. 180 / Friday, September 16, 2011 /
Proposed Rules
[[Page 57872]]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R09-OAR-2011-0622; FRL-9464-8]
Approval of Air Quality Implementation Plans; California; South
Coast; Attainment Plan for 1997 8-Hour Ozone Standard
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule.
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SUMMARY: EPA is proposing to approve state implementation plan (SIP)
revisions submitted by California to provide for attainment of the 1997
8-hour ozone national ambient air quality standards in the Los Angeles-
South Coast Area (South Coast). These SIP revisions are the South Coast
2007 Air Quality Management Plan (South Coast 2007 AQMP) (revised 2011)
and South Coast-related portions of the 2007 State Strategy (revised
2009 and 2011). EPA is proposing to approve the emissions inventories,
reasonably available control measures, provisions for transportation
control strategies and measures, reasonable further progress (RFP) and
attainment demonstrations, transportation conformity motor vehicle
emissions budgets for all RFP milestone years and the attainment year,
contingency measures for failure to make RFP or attain, and Clean Air
Act section 182(e)(5) new technologies provisions and associated
commitment to adopt contingency measures. EPA is also proposing to
approve commitments to measures and reductions by the South Coast Air
Quality Management District and the California Air Resources Board.
Simultaneously and in the alternative, EPA is proposing to disapprove
the SIP with respect to certain provisions for transportation control
strategies and measures pending resolution of petitions filed before
the 9th Circuit U.S. Court of Appeals in Association of Irritated
Residents v. EPA, 632 F.3d 584 (9th Cir. 2011).
DATES: Any comments must be submitted by October 17, 2011.
ADDRESSES: Submit comments, identified by docket number EPA-R09-OAR-
2011-0622, by one of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the on-line instructions.
E-mail: tax.wienke@epa.gov.
Mail or deliver: Marty Robin, Office of Air Planning (AIR-
2), U.S. Environmental Protection Agency Region IX, 75 Hawthorne
Street, San Francisco, CA 94105.
Instructions: All comments will be included in the public docket
without change and may be made available online at https://www.regulations.gov, including any personal information provided,
unless the comment includes Confidential Business Information (CBI) or
other information whose disclosure is restricted by statute.
Information that you consider CBI or otherwise protected should be
clearly identified as such and should not be submitted through https://www.regulations.gov or e-mail. The https://www.regulations.gov Web site
is an ``anonymous access'' system, and EPA will not know your identity
or contact information unless you provide it in the body of your
comment. If you send e-mail directly to EPA, your e-mail address will
be automatically captured and included as part of the public comment.
If EPA cannot read your comments due to technical difficulties and
cannot contact you for clarification, EPA may not be able to consider
your comment.
Docket: The index to the docket for this action is available
electronically on the https://www.regulations.gov Web site and in hard
copy at EPA Region IX, 75 Hawthorne Street, San Francisco, California,
94105. While all documents in the docket are listed in the index, some
information may be publicly available only at the hard copy location
(e.g., copyrighted material), and some may not be publicly available at
either location (e.g., CBI). To inspect the hard copy materials, please
schedule an appointment during normal business hours with the contact
listed in the FOR FURTHER INFORMATION CONTACT section below.
Copies of the SIP materials are also available for inspection at
the following locations:
California Air Resources Board, 1001 I Street, Sacramento,
California 95812, and
South Coast Air Quality Management District, 21865 E.
Copley Drive, Diamond Bar, California 91765.
The SIP materials are also electronically available at: https://aqmd.gov/aqmp/07aqmp/ and https://www.arb.ca.gov/planning/sip/sip.htm.
FOR FURTHER INFORMATION CONTACT: Wienke Tax, Air Planning Office (AIR-
2), U.S. Environmental Protection Agency, Region IX, (415) 947-4192,
tax.wienke@epa.gov.
SUPPLEMENTARY INFORMATION: Throughout this document, ``we,'' ``us'' and
``our'' refer to EPA.
Table of Contents
I. The 8-Hour Ozone National Ambient Air Quality Standard (NAAQS)
and the South Coast Nonattainment Area
A. Background on the 8-Hour Ozone NAAQS
B. The South Coast 8-Hour Ozone Nonattainment Area
II. CAA and Regulatory Requirements for Ozone Nonattainment SIPs
III. California's State Implementation Plan Submittals To Address 8-
Hour Ozone Nonattainment in the South Coast Nonattainment Area
A. California's SIP Submittals
B. CAA Procedural and Administrative Requirements for SIP
Submissions
IV. Review of the South Coast 2007 AQMP and the South Coast Portion
of the Revised 2007 State Strategy
A. Emission Inventories
B. Reasonably Available Control Measures (RACM) Demonstration
and Control Strategy
C. Attainment Demonstration
D. Reasonable Further Progress Demonstration
E. Transportation Control Strategies and Transportation Control
Measures and Vehicle Miles Travelled Offset To Offset Emissions
Increases From VMT Increases, To Provide for RFP and Attainment
F. Contingency Measures
G. Motor Vehicle Emissions Budgets for Transportation Conformity
H. Other Clean Air Act Requirements Applicable to Extreme Ozone
Nonattainment Areas
V. EPA's Proposed Actions
VI. Statutory and Executive Order Reviews
I. The 8-Hour Ozone National Ambient Air Quality Standard (NAAQS) and
the South Coast Nonattainment Area
A. Background on the 8-Hour Ozone NAAQS
Ground-level ozone is formed when oxides of nitrogen
(NOX) and volatile organic compounds (VOC) react in the
presence of sunlight.\1\ These two pollutants, referred to as ozone
precursors, are emitted by many types of pollution sources, including
on- and off-road motor vehicles and engines, power plants and
industrial facilities, and smaller area sources such as lawn and garden
equipment and paints.
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\1\ California plans sometimes use the term Reactive Organic
Gases (ROG) for VOC. These terms are essentially synonymous. For
simplicity, we use the term VOC herein to mean either VOC or ROG.
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Scientific evidence indicates that adverse public health effects
occur following exposure to ozone, particularly in children and adults
with lung disease. Breathing air containing ozone can reduce lung
function and inflame airways, which can increase respiratory symptoms
and aggravate asthma or other lung diseases. Ozone
[[Page 57873]]
exposure also has been associated with increased susceptibility to
respiratory infections, medication use, doctor visits, and emergency
department visits and hospital admissions for individuals with lung
disease. Ozone exposure also increases the risk of premature death from
heart or lung disease. Children are at increased risk from exposure to
ozone because their lungs are still developing and they are more likely
to be active outdoors, which increases their exposure. See ``Fact
Sheet, Proposal To Revise the National Ambient Air Quality Standards
for Ozone,'' January 6, 2010 and 75 FR 2938 (January 19, 2010).
In 1979, under section 109 of the CAA, EPA established primary and
secondary national ambient air quality standards (NAAQS or standard)
for ozone at 0.12 parts per million (ppm) averaged over a 1-hour
period. See 44 FR 8202 (February 8, 1979).
On July 18, 1997, EPA revised the primary and secondary NAAQS for
ozone to set the acceptable level of ozone in the ambient air at 0.08
ppm, averaged over an 8-hour period. See 62 FR 38856 (July 18,
1997).\2\ EPA set the 8-hour ozone standard based on scientific
evidence demonstrating that ozone causes adverse health effects at
lower concentrations and over longer periods of time than was
understood when the pre-existing 1-hour ozone standard was set. EPA
determined that the 8-hour standard would be more protective of human
health, especially children and adults who are active outdoors, and
individuals with a pre-existing respiratory disease, such as asthma.
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\2\ In March 2008, EPA completed another review of the primary
and secondary ozone standards and tightened them further by lowering
the level for both to 0.075 ppm. 73 FR 16436 (March 27, 2008).
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B. The South Coast 8-Hour Ozone Nonattainment Area
Following promulgation of a new or revised NAAQS, EPA is required
by the Clean Air Act (CAA) to designate areas throughout the nation as
attaining or not attaining the NAAQS. On April 15, 2004, EPA designated
the South Coast as nonattainment for the 1997 8-hour ozone standard and
classified it as ``severe-17'' under CAA section 181(a)(1) and 40 CFR
51.903(a), Table 1. See 69 FR 23858 at 23888-89 (April 30, 2004) and 40
CFR 81.305. The designations and classifications became effective on
June 15, 2004.
In 2007, California requested that EPA reclassify the South Coast
from ``severe-17'' to ``extreme'' nonattainment for the 1997 8-hour
ozone standard under CAA section 181(b)(3).\3\ We granted California's
request on May 5, 2010 and reclassified the South Coast to extreme
nonattainment for the 1997 8-hour ozone standard effective June 4,
2010. See 75 FR 24409. The South Coast 2007 AQMP was developed to
address the extreme area planning requirements for the 1997 8-hour
ozone standard in the CAA and EPA's implementing regulations and thus
California did not need to make additional submittals in response to
this reclassification.
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\3\ See SCAQMD Governing Board Resolution No. 07-9 (June 1,
2007), p. 12; CARB Resolution No. 07-41 (September 27, 2007), p. 8;
and letter, James Goldstene, Executive Officer, CARB to Wayne
Nastri, Regional Administrator, EPA Region 9, November 28, 2007.
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The South Coast 8-hour ozone nonattainment area is home to about 17
million people, has a diverse economic base, and contains one of the
highest-volume port areas in the world. For a precise description of
the geographic boundaries of the South Coast 8-hour ozone nonattainment
area, see 40 CFR 81.305. The local air district with primary
responsibility for developing a plan to attain the 1997 8-hour ozone
NAAQS in this area is the South Coast Air Quality Management District
(District or SCAQMD).
Ambient 8-hour ozone levels in the South Coast are well above the
1997 8-hour ozone NAAQS. The maximum design value for the area, based
on monitored readings at the Crestline monitor, is 0.112 ppm for the
2008-2010 period.\4\
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\4\ See EPA, Air Quality System Quick Look Report dated April
14, 2011 in the docket for today's action. A design value is an
ambient concentration calculated using a specific methodology to
evaluate monitored air quality data and is used to determine whether
an area's air quality is meeting a NAAQS. The methodology for
calculating design values for the 8-hour ozone NAAQS is found in 40
CFR part 50, Appendix I. This value is preliminary because while
2008 and 2009 data are complete, validated, and certified, 2010 data
have not yet been certified by the District.
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II. CAA and Regulatory Requirements for Ozone Nonattainment SIPs
States must implement the 1997 8-hour ozone standard under Title 1,
Part D of the CAA, which includes section 172, ``Nonattainment plan
provisions,'' and subpart 2, ``Additional Provisions for Ozone
Nonattainment Areas'' (sections 181-185).
In order to assist states in developing effective plans to address
their ozone nonattainment problem, EPA issued the 8-hour ozone
implementation rule. This rule was finalized in two phases. The first
phase of the rule addresses classifications for the 1997 8-hour ozone
standard, applicable attainment dates for the various classifications,
and the timing of emissions reductions needed for attainment. See 69 FR
23951 (April 30, 2004). The second phase addresses SIP submittal dates
and the requirements for reasonably available control technology and
measures (RACT and RACM), reasonable further progress (RFP), modeling
and attainment demonstrations, contingency measures, and new source
review. See 70 FR 71612 (November 29, 2005). The rule is codified at 40
CFR part 51, subpart X.\5\ We discuss each of these CAA and regulatory
requirements for 8-hour ozone nonattainment plans in more detail below.
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\5\ EPA has revised or proposed to revise several elements of
the 8-hour ozone implementation rule since its initial promulgation
in 2004. See, e.g., 74 FR 2936 (January 16, 2009); 75 FR 51960
(August 24, 2010); and 75 FR 80420 (December 22, 2010). None of
these revisions affect any provision of the rule that is applicable
to EPA's proposed actions on the South Coast 2007 8-Hour Ozone Plan.
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III. California's State Implementation Plan Submittals To Address 8-
Hour Ozone Nonattainment in the South Coast Nonattainment Area
A. California's SIP Submittals
Designation of an area as nonattainment starts the process for a
state to develop and submit to EPA a State implementation plan (SIP)
providing for attainment of the NAAQS under title 1, part D of the CAA.
For 8-hour ozone areas designated as nonattainment effective June 15,
2004, this attainment SIP was due by June 15, 2007. See CAA 172(b) and
40 CFR 51.908(a) and 51.910.
California has made five SIP submittals to address the CAA's
planning requirements for attaining the 1997 8-hour ozone standard in
the South Coast nonattainment area. We refer to these submittals
collectively as ``the South Coast 2007 8-Hour Ozone SIP'' or ``the
South Coast 2007 Ozone SIP.'' The two principal ones are the District's
2007 8-Hour Ozone Plan (South Coast 2007 AQMP) and the California Air
Resources Board's (CARB's) State Strategy for California's 2007 State
Implementation Plan (2007 State Strategy).
1. 2007 South Coast AQMP
The ``Final 2007 Air Quality Management Plan, June 2007'' (South
Coast 2007 AQMP) was adopted by the District on June 1, 2007 and
submitted to CARB on October 24, 2007.6 7 On
[[Page 57874]]
November 28, 2007, CARB submitted the South Coast 2007 AQMP to EPA. The
South Coast 2007 AQMP includes an 8-hour ozone attainment demonstration
for the South Coast nonattainment area, commitments by the SCAQMD to
adopt control measures to achieve emissions reductions from sources
under its jurisdiction (primarily stationary sources), and motor
vehicle emissions budgets (budgets) used for transportation conformity
purposes. The attainment demonstration includes air quality modeling,
an analysis of CAA section 172 reasonably available control measures
(RACM), base year and projected year emissions inventories, and
contingency measures.
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\6\ See November 28, 2007 letter to Wayne Nastri, Regional
Administrator, EPA Region 9, from James N. Goldstene, Executive
Officer, CARB, with enclosures.
\7\ The South Coast 2007 AQMP is the first South Coast Plan to
address the 8-hour ozone NAAQS. We have previously acted on numerous
South Coast air quality plans for ozone, PM-10, carbon monoxide, and
NO2, such as the 1997/1999 AQMP. We approved the ozone
portion of the 1997 South Coast AQMP, as amended in 1999, on April
10, 2000 (see 65 FR 18903). Our most recent action on a SIP
addressing the CAA requirements for the South Coast ozone
nonattainment area was our partial approval and partial disapproval
of the 2003 AQMP, which addressed 1-hour ozone (see 74 FR 10176,
March 10, 2009). Our 2009 final action was challenged in the Ninth
Circuit Court of Appeals, which published an opinion remanding
certain aspects of EPA's action for further action consistent with
the opinion. See Association of Irritated Residents v. EPA, 632 F.3d
584 (9th Cir. 2011). The issues in dispute relate to the
consequences of an EPA disapproval of a SIP submittal, the adequacy
of EPA's evaluation of a particular control measure from the 2003
State Strategy, and the rationale for EPA's approval of the State's
submittal as meeting the requirements of CAA section 182(d)(1)(A)
(TCMs to offset growth in emissions from growth in VMT) in the South
Coast. EPA has sought rehearing on some of the issues, and the
mandate in this case has not yet been issued pending action by the
court on the petition for rehearing.
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In today's proposal, we are evaluating only those portions of the
South Coast 2007 AQMP and its revisions that are relevant to attainment
of the 1997 8-hour ozone standard in the South Coast.
2. CARB 2007 State Strategy
To demonstrate attainment, the South Coast 2007 AQMP relies to a
large extent on measures and commitments in CARB's 2007 State Strategy.
The 2007 State Strategy was adopted by CARB on September 27, 2007 and
submitted to EPA on November 16, 2007.\8\ It describes CARB's overall
approach to addressing, in conjunction with local plans, attainment of
both the 1997 8-hour ozone and fine particulate (PM2.5)
NAAQS not only in the South Coast nonattainment area but also in the
San Joaquin Valley and the Sacramento area. It also includes CARB's
commitments to propose 15 defined State measures \9\ and to obtain
specific amounts of aggregate emissions reductions of NOX
and VOC emissions in the South Coast from sources under the State's
jurisdiction, primarily on- and off-road motor vehicles and engines. In
addition, it contains an RFP demonstration and contingency measures for
the South Coast 8-hour ozone nonattainment area.
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\8\ See CARB Resolution No. 07-28, September 27, 2007 with
attachments and letter from James N. Goldstene, Executive Officer,
CARB, to Wayne Nastri, Regional Administrator, EPA Region 9,
November 16, 2007 with enclosures.
\9\ The 2007 State Strategy also includes measures to be
implemented by the California Bureau of Automotive Repair (Smog
Check improvements) and the California Department of Pesticide
Regulation (VOC reductions from pesticide use). See 2007 State
Strategy, pp. 64-65 and CARB Resolution 7-28, Attachment B, p. 8.
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On August 12, 2009, CARB submitted the ``Status Report on the State
Strategy for California's 2007 State Implementation Plan (SIP) and
Proposed Revision to the SIP Reflecting Implementation of the 2007
State Strategy,'' dated March 24, 2009 and adopted April 24, 2009
(``2009 State Strategy Status Report'').\10\ This submittal updated the
2007 State Strategy to reflect its implementation during 2007 and 2008.
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\10\ See CARB Resolution No. 09-34, April 24, 2009 and letter,
James N. Goldstene, Executive Officer, CARB, to Wayne Nastri,
Regional Administrator, EPA Region 9, August 12, 2009 with
enclosures. Only pages 11-27 of the 2009 State Strategy Status
Report are submitted as a SIP revision. The balance of the report is
for informational purposes only. See Attachment A to CARB Resolution
No. 09-34.
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In today's proposal, we are evaluating only those portions of the
2007 State Strategy and its revisions that are relevant to attainment
of the 1997 8-hour ozone standard in the South Coast.
3. CARB's 2011 SIP Revisions
On May 18, 2011, CARB submitted a SIP revision entitled Progress
Report on Implementation of PM2.5 State Implementation Plans
(SIP) for the South Coast and San Joaquin Valley Air Basins and
Proposed SIP Revisions, dated March 29, 2011 and adopted April 28,
2011, together with the adopting resolution and other supporting
documentation 11 12 (2011 Progress Report). Appendix F of
this 2011 Progress Report provides revised control measure commitments
and a revised rule implementation schedule for the South Coast 2007
AQMP.\13\ We refer to this SIP revision as the ``2011 Progress Report,
Appendix F.''
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\11\ See CARB Board Resolution 11-24, April 28, 2011 and letter,
James N. Goldstene, Executive Officer, CARB, to Jared Blumenfeld,
Regional Administrator, EPA Region 9, May 18, 2011 with enclosures.
\12\ Only Appendices B, C, and D of the 2011 Progress Report are
submitted as a SIP revision. The balance of the report is for
informational purposes only. See letter, James Goldstene, Executive
Officer, CARB, to Jared Blumenfeld, Regional Administrator, EPA
Region 9, May 18, 2011.
\13\ See letter, Lynn Terry, Deputy Executive Officer, CARB, to
Jared Blumenfeld, Regional Administrator, EPA Region 9, dated May
19, 2011, and enclosed ARB Board Resolution 11-24.
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On July 29, 2011, CARB submitted the ``8-Hour Ozone State
Implementation Plan Revisions and Technical Revisions to the
PM2.5 State Implementation Plan Transportation Conformity
Budgets for the South Coast and San Joaquin Valley Air Basins,'' dated
June 20, 2011 and adopted July 21, 2011 (2011 Ozone SIP Revision).\14\
This SIP revision updates the 2007 State Strategy and 2009 State
Strategy Status Report. Specifically, it updates the emissions
inventories, RFP demonstration, contingency measures, and
transportation conformity budgets for the South Coast to reflect rule
adoptions and improvements to emissions estimates. CARB provided
supplemental documentation for the 2011 Ozone SIP Revision on August
10, 2011 (2011 Ozone SIP Supplement).\15\
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\14\ See CARB Resolution 11-22, July 21, 2011 and letter, James
N. Goldstene, Executive Officer, CARB, to Jared Blumenfeld, Regional
Administrator, EPA Region 9, July 29, 2011 with enclosures. Only
Appendix A of the 2011 Ozone SIP Revision is submitted as a SIP
revision. The balance of the report is for informational purposes
only.
\15\ See letter, Lynn Terry, Executive Officer, CARB, to Deborah
Jordan, Director, Region 9 Air Division, dated August 10, 2011 with
attachments.
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Future references in this proposal to the 2007 State Strategy and
to the South Coast 2007 AQMP will be to the State Strategy as revised
in 2009 and 2011, and the AQMP as revised in 2011, respectively, unless
otherwise noted.
B. CAA Procedural and Administrative Requirements for SIP Submissions
CAA sections 110(a)(1) and (2) and 110(l) require a state to
provide reasonable public notice and opportunity for public hearing
prior to the adoption and submission of a SIP or SIP revision. To meet
this requirement, every SIP submittal should include evidence that
adequate public notice was given and an opportunity for a public
hearing was provided consistent with EPA's implementing regulations in
40 CFR 51.102.
Both the District and CARB have satisfied applicable statutory and
regulatory requirements for reasonable public notice and hearing prior
to adoption and submission of the South Coast 2007 Ozone Plan. The
District conducted public workshops, provided public comment periods,
and held public hearings prior to the adoption of the South Coast 2007
AQMP on June 1, 2007 (See SCAQMD Governing Board Resolution No. 07-9).
CARB provided the required public notice and opportunity for public
comment prior to its September 27, 2007 public hearing on the plan. See
CARB Resolution No. 07-41. The District also provided the
[[Page 57875]]
required public notice and hearing on its 2011 revision to the 2007
AQMP. See SCAQMD Governing Board Resolution 11-9.
CARB conducted public workshops, provided public comment periods,
and held a public hearing prior to the adoption of the 2007 State
Strategy on September 27, 2007 (See CARB Resolution No. 07-28). CARB
also provided the required public notice, opportunity for public
comment, and a public hearing prior to its April 24, 2009 adoption of
the 2009 State Strategy Status Report. See CARB Resolution 09-34, April
24, 2009. Finally, CARB provided the required public notice,
opportunity for public comment, and a public hearing prior to its April
28, 2011 and July 21, 2011 adoption of the 2011 Progress Report and the
2011 Ozone SIP Revision, respectively. See CARB Resolution 11-11, April
28, 2011, and CARB Resolution 11-22, July 21, 2011.
The SIP submittals include proof of publication for notices of the
District and CARB public hearings, as evidence that all hearings were
properly noticed. We find, therefore, that each of the five submittals
meet the procedural requirements for public notice and hearing in CAA
sections 110(a) and 110(l).
CAA section 110(k)(1)(B) requires EPA to determine whether a SIP
submittal is complete within 60 days of receipt. This section also
provides that any plan that EPA has not affirmatively determined to be
complete or incomplete will be deemed complete 6 months after the date
of submission by operation of law. EPA's SIP completeness criteria are
found in 40 CFR part 51, Appendix V.
The November 28, 2007 submittal of the South Coast 2007 AQMP became
complete by operation of law on May 28, 2008. The November 16, 2007
submission of the 2007 State Strategy and the August 12, 2009 revisions
to the Strategy became complete by operation of law on May 16, 2008 and
February 12, 2010, respectively.
We determined that CARB's 2011 Progress Report submittal of May 18,
2011 was complete on June 13, 2011. See Letter, Deborah Jordan, Air
Division Director, US EPA Region 9, to James Goldstene, Executive
Officer, CARB, dated June 13, 2011. We determined that CARB's 2011
Ozone SIP Update submittal of July 29, 2011 was complete on August 23,
2011.\16\
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\16\ See Letter, Deborah Jordan, Air Division Director, US EPA
Region 9, to James Goldstene, Executive Officer, CARB, dated August
23, 2011.
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IV. Review of the South Coast 2007 AQMP and the South Coast Portion of
the Revised 2007 State Strategy
We provide our evaluation of the South Coast 2007 8-Hour Ozone
SIP's compliance with applicable CAA and EPA regulatory requirements
below. A more detailed evaluation can be found in the technical support
document (TSD) for this proposal, which is available online at https://www.regulations.gov under docket number EPA-R09-OAR-2011-0622, or from
the EPA contact listed at the beginning of this notice.
A. Emissions Inventories
1. Requirements for Emissions Inventories
CAA section 182(a)(1) requires each state with an ozone
nonattainment area classified under subpart 2 to submit, within two
years of the area's designation as nonattainment, a ``comprehensive,
accurate, current inventory of actual emissions from all sources'' of
the relevant pollutant or pollutants in accordance with guidance
provided by EPA. CAA 182(a)(1), 40 CFR 51.915. EPA has issued
``Emissions Inventory Guidance for Implementation of Ozone and
Particulate Matter NAAQS and Regional Haze Regulations,'' (EPA-454/R-
05-001), November 2005 (``EI Guidance'') which provides guidance on how
to develop base year and baseline emissions inventories for 8-hour
ozone, PM2.5, and regional haze SIPs.
For areas that were initially designated nonattainment for the 8-
hour ozone standard in 2004, EPA recommends using calendar year 2002 as
the base year for the inventory required by CAA section 182(a)(1). EI
Guidance, p. 8.
Emissions inventories for ozone should include emissions of VOC,
NOX, and carbon monoxide (CO) and represent an average
summer week day during the ozone season. EI Guidance, pp. 14 and 17.
States should include documentation in their submittals explaining how
emissions data were calculated. 70 FR 71612 at 71664 and EI Guidance,
p. 40. In estimating mobile source emissions, states should use the
latest emission models and planning assumptions available at the time
the SIP is developed. 66 FR at 32854 and 70 FR 61612, at 71666. For
California, the latest available mobile source emissions model is
EMFAC2007, which EPA approved in 2008 for use in SIPs and
transportation conformity analyses. See 73 FR 3464 (January 18, 2008).
2. Emissions Inventories in the South Coast 2007 AQMP
The base year and future year baseline inventories for ozone
precursors for the South Coast ozone nonattainment area together with
additional documentation for the inventories are found in Chapter 3 and
Appendix III of the South Coast 2007 AQMP.\17\ These inventories
represent average summer day (ozone season) emissions. Inventories are
provided for the base year of 2002; the RFP milestone years of 2008,
2011, 2014, 2017, 2020; and the attainment year of 2023. The projected
baseline inventories include reductions from Federal, State, and
District measures adopted prior to 2007. See South Coast 2007 AQMP,
page 3-1 and 2007 State Strategy, Appendix A, p. 1. All inventories
include emissions from point, area, on-road and non-road sources.
---------------------------------------------------------------------------
\17\ By ``future year baseline inventories'' or ``projected
baseline inventories,'' we mean projected emissions inventories for
future years that account for, among other things, the effects of
economic growth and adopted emissions control requirements.
---------------------------------------------------------------------------
As a starting point for the South Coast 2007 AQMP's inventories,
the District used CARB's inventory for the year 2002. This inventory
and CARB's documentation for its inventories can be found in Appendices
A and F, respectively, of the 2007 State Strategy. The 2002 inventory
for the South Coast nonattainment area was projected to 2005 and future
years using CARB's California Emission Forecasting System (CEFS). Both
base year and projected baseline inventories use the most current
version of California's mobile source emissions model, EMFAC2007, for
estimating on-road motor vehicle emissions. EPA has approved this model
for use in SIPs and transportation conformity analyses. 73 FR 3464
(January 18, 2008). Off-road inventories were developed using the CARB
off-road model.
As part of its 2011 Ozone SIP Revision, CARB submitted revised base
year and future year baseline inventories for the South Coast
nonattainment area. See Table 1 below. These revised inventories
incorporate improved activity data and/or emission factors for diesel
trucks and buses and off-road equipment that were developed as part of
CARB's December 2010 rulemakings amending its In-Use On-Road Truck and
Bus Rule and In-Use Off-Road Engine rule. The State estimates that
these changes collectively reduce the 2002 base year total inventory in
the South Coast by 5 percent for NOX and less than 2 percent
[[Page 57876]]
for VOC.\18\ The projected baseline inventories for subsequent years
were also revised to reflect the ongoing effects of the 2007-2009
economic recession, which has significantly reduced activity levels and
associated emissions from the State's construction and goods movement
sectors. CARB estimates that emissions levels and growth rates will
return to normal levels by the 2017-2018 timeframe. 2011 Ozone SIP
Revision, Appendix B. As a result, projected emission levels from these
categories in the years up to 2017-2018 are now substantially lower
than were originally projected in the South Coast 2007 AQMP and 2007
State Strategy as submitted in November 2007. These recession-related
decreases in emissions do not in themselves affect the Plan's emissions
inventories for the modeling validation years (1997, 2004, and 2005),
the base year (2002), or future years (2020 and 2023), and thus do not
change the carrying capacity estimates in the plan (i.e., they do not
in themselves affect the target level of overall emissions reductions
needed to demonstrate attainment), nor do they alter the 2002 adjusted
baseline emissions, which provide the starting point for the reasonable
further progress demonstration. The principal effect of the recession-
related decreases in projected emissions estimates is to reduce the
amount of reductions needed from the SIP's control strategy to
demonstrate RFP in the years prior to 2018.
---------------------------------------------------------------------------
\18\ See Appendix A of 2011 Ozone SIP Revision.
Table 1--South Coast Base Year and Attainment Year Emissions Inventory Summary
[Summer planning inventory emissions in tons per day] a
----------------------------------------------------------------------------------------------------------------
Emissions inventory category NOx VOC
----------------------------------------------------------------------------------------------------------------
Year 2002 2023 2002 2023
----------------------------------------------------------------------------------------------------------------
Stationary/Areawide Sources............. 89 68 318 273
On-road Mobile Sources.................. 652 140 361 98
Off-road Mobile Sources................. 283 170 202 142
-----------------------------------------------------------------------
TOTAL............................... 1024 378 881 513
----------------------------------------------------------------------------------------------------------------
\a\ Numbers may not add up to precise totals due to rounding. Source: 2011 Ozone SIP Revision, Appendix B, p. B-
2.
3. Proposed Action on the Base Year Emissions Inventory
We have reviewed the 2002 base year emissions inventory in the
South Coast 2007 AQMP and the inventory methodologies used by the
District and CARB in developing that inventory and have determined that
the inventory was developed consistent with CAA requirements as
reflected in the 8-hour ozone implementation rule, and EPA's guidance.
The revised 2002 base year inventory is a comprehensive, accurate, and
current inventory of actual emissions of 8-hour ozone precursors in the
South Coast nonattainment area. We therefore propose to approve the
base year inventory as meeting the requirements of CAA section
182(a)(1) and EPA's 8-hour ozone implementation rule. 40 CFR 51.915. We
provide detail on our review of the base year inventory in section
II.A. of the TSD for this proposal.
B. Reasonably Available Control Measures (RACM) Demonstration and
Control Strategy
1. Requirements for RACM and Control Strategy
CAA section 172(c)(1) requires that each attainment plan ``provide
for the implementation of all reasonably available control measures as
expeditiously as practicable (including such reductions in emissions
from existing sources in the area as may be obtained through the
adoption, at a minimum, of reasonably available control technology),
and shall provide for attainment of the national primary ambient air
quality standards.'' The 8-hour ozone implementation rule requires that
for each nonattainment area that is required to submit an attainment
demonstration, the state must also submit concurrently a SIP revision
demonstrating that it has adopted all RACM necessary to demonstrate
attainment as expeditiously as practicable and to meet any RFP
requirements. 40 CFR 51.912(d).
EPA has previously provided guidance interpreting the RACM
requirement in the General Preamble at 13560 \19\ and in a memorandum
entitled ``Guidance on Reasonably Available Control Measures (RACM)
Requirements and Attainment Demonstration Submissions for the Ozone
NAAQS,'' John Seitz, November 30, 1999. (Seitz memo). In summary, EPA
guidance provides that to address the requirement to adopt all RACM,
states should consider all potentially reasonable control measures for
source categories in the nonattainment area to determine whether they
are reasonably available for implementation in that area and whether
they would, if implemented individually or collectively, advance the
area's attainment date by one year or more. See Seitz memo and General
Preamble at 13560; see also ``State Implementation Plans; General
Preamble for Proposed Rulemaking on Approval of Plan Revisions for
Nonattainment Areas,'' 44 FR 20372 (April 4, 1979) and Memorandum dated
December 14, 2000, from John S. Seitz, Director, Office of Air Quality
Planning and Standards, ``Additional Submission on RACM from States
with Severe One-Hour Ozone Nonattainment Area SIPs.''
---------------------------------------------------------------------------
\19\ The ``General Preamble for the Implementation of Title I of
the Clean Air Act Amendments of 1990,'' published at 57 FR 13498 on
April 16, 1992, describes EPA's preliminary view on how we would
interpret various SIP planning provisions in title I of the CAA as
amended in 1990, including those planning provisions applicable to
the 1-hour ozone standard. EPA continues to rely on certain guidance
in the General Preamble to implement the 8-hour ozone standard under
title I.
---------------------------------------------------------------------------
Any measures that are necessary to meet these requirements that are
not already either federally promulgated, part of the state's SIP, or
otherwise creditable in SIPs must be submitted in enforceable form as
part of a state's attainment plan for the area. 72 FR 20586, at
20614.\20\
---------------------------------------------------------------------------
\20\ For ozone nonattainment areas classified as moderate or
above, CAA section 182(b)(2) also requires implementation of RACT
for all major sources of VOC and for each VOC source category for
which EPA has issued a Control Techniques Guideline (CTG). CAA
section 182(f) requires that RACT under section 182(b)(2) also apply
to major stationary sources of NOX. In extreme areas, a
major source is a stationary source that emits or has the potential
to emit at least 10 tons of VOC or NOX per year. CAA
section 182(e) and (f). Under the 8-hour ozone implementation rule,
states were required to submit SIP revisions meeting the RACT
requirements of CAA sections 182(b)(2) and 182(f) no later than 27
months after designation for the 8-hour ozone standard (September
15, 2006 for areas designated in April 2004) and to implement the
required RACT measures no later than 30 months after that submittal
deadline. See 40 CFR 51.912(a). California submitted the CAA section
182 RACT SIP for the South Coast 8-hour ozone nonattainment area on
January 31, 2007, which EPA fully approved on December 18, 2008. See
73 FR 76947.
---------------------------------------------------------------------------
[[Page 57877]]
CAA section 172(c)(6) requires nonattainment plans to ``include
enforceable emission limitations, and such other control measures,
means or techniques (including economic incentives such as fees,
marketable permits, and auctions of emission rights), as well as
schedules and timetables for compliance, as may be necessary or
appropriate to provide for attainment of such standard in such area by
the applicable attainment date * * *.'' See also CAA section
110(a)(2)(A). The ozone implementation rule requires that all control
measures needed for attainment be implemented no later than the
beginning of the attainment year ozone season. 40 CFR 51.908(d). The
attainment year ozone season is defined as the ozone season immediately
preceding a nonattainment area's attainment date. 40 CFR 51.900(g).
2. RACM Demonstration and Control Strategy
For the 2007 Ozone Plan and the 2007 State Strategy, CARB, the
District, and the local agency (through the South Coast's metropolitan
planning organization (MPO), the Southern California Association of
Governments (SCAG)) each undertook a process to identify and evaluate
potential reasonably available control measures that could contribute
to expeditious attainment of the 1997 8-hour ozone standards in the
South Coast nonattainment area. We describe each agency's efforts
below.
a. District's RACM Demonstration and Control Strategy
The District's RACM demonstration, which focuses on stationary and
area source controls, is described in Chapter 6 and Appendix VI of the
South Coast 2007 AQMP. In developing the South Coast 2007 AQMP, the
District conducted a process to identify RACM for the South Coast that
involved public meetings to solicit input, evaluation of EPA's
suggested RACM, and evaluation of other air agencies' regulations. See
South Coast 2007 AQMP, Appendix VI.
To identify potential reasonably available measures for the South
Coast, the District evaluated measures implemented in other
nonattainment areas (including the San Joaquin Valley, the San
Francisco Bay Area, Sacramento, Ventura, Dallas-Fort Worth, and the
Houston-Galveston area) and measures identified by the Lake Michigan
Air Directors Consortium (LADCO), and held meetings with CARB,
technical experts, local government representatives, and the public
during development of the South Coast 2007 AQMP. The District sponsored
an AQMP summit, which generated 200 potential control measures. The
District also reevaluated all 82 of the existing SIP-approved District
rules and regulations.
From the set of identified potential controls, the District then
screened the identified measures and rejected those that would not
individually or collectively advance attainment in the area, had
already been adopted as rules, or were in the process of being adopted.
The remaining measures were evaluated taking into account baseline
inventories, available control technologies, and potential emission
reductions as well as whether the measure could be implemented on a
schedule that would advance attainment of the 1997 8-hour ozone
standard by at least a year, assuming a 2024 deadline. South Coast 2007
AQMP, Appendix VI.
In general, EPA believes that the District's current rules and
regulations are equivalent to or more stringent with respect to
emissions of ozone precursors than those developed by other air
districts.
Based on its RACM analysis for stationary and area sources under
its jurisdiction, the District scheduled 15 new or revised stationary
source control measures for development and adoption, including
measures at least as stringent as those identified in other California
districts' AQMPs and several innovative measures. Since submission of
the AQMP in 2007, the District has adopted 13 of these rules and
submitted them to EPA for approval into the SIP. These rules are part
of the District's enforceable commitment to achieve emissions
reductions of 9 tons per day (tpd) of NOX and 19 tpd of VOC
by 2023. As to the few remaining measures that the District rejected
from its RACM analysis, the District determined that these measures
would not advance the attainment date or contribute to RFP due to the
insignificant or unquantifiable emissions reductions they would
potentially generate. See South Coast 2007 AQMP, Appendix VI.
The District has made new commitments in its South Coast 2007 AQMP
to achieve specific reductions from VOC and NOX sources in
the South Coast area. The District committed to adopt and submit
measures that will achieve the following additional emissions
reductions by 2023: 9 tpd NOX and 19 tpd VOC. See South
Coast 2007 AQMP, Table 4-2A, page 4-10 and CARB Staff Report on the
South Coast 2007 AQMP, page 13.\21\ The District expects to meet its
emissions reductions commitments for VOC and NOX (see Table
2 below) by adopting new control measures and programs and
strengthening existing control measures, such as those identified in
Table 4-2A of the South Coast 2007 AQMP (see South Coast 2007 AQMP,
page 4-10 and CARB Staff Report on South Coast 2007 AQMP, p. 13), and
through the additional actions summarized in the CARB Staff Report on
the South Coast 2007 AQMP (See CARB Staff Report on South Coast 2007
AQMP, p. 18). These new or revised control measures include rules to
regulate lubricants, consumer products, non-RECLAIM ovens, dryers and
furnaces, space heaters, facility modernizations, livestock waste, and
residential wood burning. The South Coast 2007 AQMP also identifies 22
measures (beyond the new control measures and additional actions just
discussed) for further review, which may yield additional emission
reductions.
---------------------------------------------------------------------------
\21\ The CARB Staff Report on the South Coast 2007 AQMP, page
ES-4, incorrectly states the SCAQMD commitments as 19 tpd
NOX and 9 tpd VOC.
---------------------------------------------------------------------------
SCAQMD has committed to adopt and implement control measures that
will achieve the total tonnage of emission reductions identified in
Tables 2 and 3 of Appendix F of the 2011 Progress report. As discussed
above, the District's commitment is to achieve the total tonnage of
reductions of each pollutant by the specified dates. If SCAQMD
determines that a particular measure is infeasible, in whole or in
part, SCAQMD commits to achieve equivalent reductions on the same
schedule through substitute controls. South Coast 2007 AQMP, p. 4-73.
[[Page 57878]]
Table 2--District Short and Intermediate Term Control Measures Credited in South Coast 2007 AQMP Attainment
Demonstration, as Revised in 2011
----------------------------------------------------------------------------------------------------------------
Emissions reduction Emissions reductions achieved a
commitment in South ---------------------------------
Coast 2007 AQMP, as
Control measure Rule No. Title revised in 2011
------------------------ NOX VOC
NOX VOC
----------------------------------------------------------------------------------------------------------------
BCM-03............. 445 Woodburning n/a....... n/a....... 0.1 tpd 0.7 tpd.
fireplaces and
woodstoves.
CTS-01............. 1144 Metalworking n/a....... 2.0 tpd... n/a 4.2 tpd.
fluids and
direct-contact
lubricants.
CTS-03 \b\......... .............. Consumer Products n/a....... n/a....... n/a n/a.
Certification
and Emissions
Reductions from
the Use of
Consumer
Products at
Inst. and Comm'l
Facilities.
CTS-04............. 1143 Consumer Paint n/a....... n/a....... n/a 10.1 tpd.
Thinners and
Multi-Purpose
Solvents.
CMB-01............. 1147 NOX reductions 4.1 tpd... .......... 4.1 tpd .................
from
miscellaneous
sources.
FUG-02............. 461 Gasoline transfer n/a....... 4.0 tpd... n/a Met via excess
and dispensing. from Rule 1143.
FUG-04............. 1149 Storage Tank and n/a....... n/a....... n/a 0.04 tpd.
Pipeline
Cleaning and
Degassing.
CMB-03............. 1111 Further NOX 1.1 tpd... n/a....... 3.0 tpd n/a.
reductions from
space heaters.
MCS-01............. 1110.2 Liquid and 2.2 tpd... 9.2 tpd... 0.54 tpd 0.3 tpd.
gaseous fuels--
stationary ICEs.
----------------------------------------------------------------------------------------------------------------
Measures not yet adopted or not fully approved by EPA \c\
----------------------------------------------------------------------------------------------------------------
.............. ................. NOX....... VOC....... .............
MCS-01............. 1146 NOX from .......... .......... Emissions reductions not
industrial, currently creditable; EPA
institutional, & proposed limited approval/
commercial limited disapproval published
boilers, steam July 8, 2011, see 76 FR 40303.
generators, and
process heaters.
1146.1 NOX from small .......... .......... Emissions reductions not
ind, inst, & currently creditable; EPA
comm'l boilers, proposed limited approval/
steam gens, and limited disapproval published
proc. htrs. July 8, 2011, see 76 FR 40303.
EGM-01............. 2301 Emissions 0.8 tpd... 0.5 tpd... Scheduled for
reductions from adoption in
new or 2012.
redevelopment
projects.
MCS-05............. 1127 Livestock waste.. n/a....... 0.6 tpd... EPA has not
yet acted on
this rule.
FLX-02............. .............. Refinery pilot n/a....... 1.6 tpd... Not yet
program. adopted.
MOB-05............. .............. AB923 LDV high 0.4 tpd... 0.7 tpd... No rule
emitter program. associated
with this
measure.
MOB-06............. .............. AB923 MDV high 0.6 tpd... 0.6 tpd... No rule
emitter program. associated
with this
measure.
----------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------
SIP Commitments and Currently Creditable Reductions
----------------------------------------------------------------------------------------------------------------
2023 SIP commitment--NOX............. 9.2 tpd NOX............ SIP-creditable 7.7 tpd.
reductions--NOX.
2023 SIP commitment--VOC............. 19.3 tpd VOC........... SIP-creditable 15.3 tpd.
reductions--VOC.
----------------------------------------------------------------------------------------------------------------
\a\ From SCAQMD's 2011 ``Revisions to PM2.5 and Ozone State Implementation Plan for South Coast Air Basin and
Coachella Valley,'' which was included as Appendix F in CARB's 2011 Progress Report, Tables 2 and 3, and
District rule evaluation forms. Some emissions reduction commitments were revised from the information
originally provided in the South Coast 2007 AQMP.
[[Page 57879]]
\b\ Adopted by CARB in November 2010.
\c\ EPA can only credit District rules that have been adopted, submitted to EPA, and approved for credit in the
SIP.
n/a = not applicable.
Table 3--Status of District Rules in the South Coast 2007 AQMP for 8-Hour Ozone
----------------------------------------------------------------------------------------------------------------
Implementation
Rule Adoption date date SIP status Federal Register cite
----------------------------------------------------------------------------------------------------------------
Rule 445--Woodburning fireplaces 2008 2008-2014 SIP-approved......... 74 FR 27716, 06/11/
and woodstoves. 09.
Rule 461--Gasoline transfer and 2009 2010-2012 SIP-approved......... 71 FR 18216, 04/11/
dispensing. 06.
Rule 1149--storage tank and 2008 2008 SIP-approved......... 74 FR 67821, 12/21/
pipeline cleaning and degreasing. 09.
Rule 1144--Vanishing oils and rust 2009 2011 Proposed for SIP- 75 FR 41744, 07/15/
inhibitors. approval. 11.
Rule 1143--Consumer Paint Thinners 2009 2011 Proposed for SIP- 76 FR 41744, 07/15/
and Multi-Purpose Solvents. approval. 11.
Rule 1147--NOX reductions from 2008 2010 SIP-approved......... 75 FR 46845, 08/04/
miscellaneous sources. 10.
Rule 1111--Further NOX reductions 2009 2012-2043 SIP-approved......... 75 FR 46845, 08/04/
from space heaters. 10.
Rule 1110.2--Liquid and gaseous 2008 2011 SIP-approved......... 74 FR 18995, 4/27/09.
fuels--stationary ICEs.
Rule 1146--NOX from industrial, 2008 2011 Submitted............ Proposed limited
institutional, commercial approval/limited
boilers, steam generators, and disapproval 7/8/11,
process heaters. 76 FR 40303.
Rule 1146.1--NOX from small 2008 2011 Submitted............ Proposed limited
industrial, institutional, approval/limited
commercial boilers, steam disapproval 7/8/11,
generators, and process heaters. 76 FR 40303.
Rule 1127--Livestock Waste........ 2006 2011 Submitted to EPA on Found complete on 10/
10/05/06. 25/06.
Refinery Pilot Program............ 2008 2010 Not yet adopted...... N/A.
Rule 2301--Indirect Source Review. 2012 2014 Not yet adopted...... N/A.
AB923--Light duty vehicle high (a) (a) No rule associated N/A.
emitter program. with this measure.
AB923--Light duty vehicle high (a) (a) No rule associated N/A.
emitter program. with this measure.
----------------------------------------------------------------------------------------------------------------
\a\ Ongoing.
b. The Local Jurisdiction's RACM Analysis
The local jurisdiction's RACM analysis was conducted by the
metropolitan planning organization (MPO) for the South Coast region,
the Southern California Association of Governments (SCAG). This
analysis focused on transportation control measures (TCMs). TCMs are,
in general, measures designed to reduce emissions from on-road motor
vehicles through reductions in vehicle miles traveled or traffic
congestion. SCAG's analysis is described in Appendix IV-C of the South
Coast 2007 AQMP. The TCMs in the South Coast 2007 AQMP are derived from
TCM projects in the 2006 SCAG Regional Transportation Improvement
Program (RTIP). This evaluation, described beginning on page 49 of
Appendix IV-C of the South Coast 2007 AQMP, resulted in extensive local
government commitments to implement programs to reduce auto travel and
improve traffic flow. South Coast 2007 AQMP page 6-6 and Appendix IV-C.
Attachment A to Appendix IV-C contains an extensive list of TCMs under
development and newly scheduled TCMs. See South Cost 2007 AQMP,
Appendix IV-C, p. 39.
SCAG evaluated a wide variety of transportation control measures,
including those measures listed in CAA section 108(f), and determined
that there were no combinations of reasonable measures that would
advance attainment of the 8-hour ozone standard in the South Coast. See
South Coast 2007 AQMP, Appendix IV-C.
c. CARB's RACM Demonstration and Control Strategy
Source categories for which CARB has primary responsibility for
reducing emissions in California include most new and existing on- and
off-road engines and vehicles, motor vehicle fuels, and consumer
products.
Given the need for significant emissions reductions from mobile and
area sources to meet the NAAQS in California nonattainment areas, the
State of California has been a leader in the development of stringent
control measures nationwide for on-road and off-road mobile sources and
the fuels that power them. See, e.g., 2007 State Strategy, p. 37; see
also TSD at Appendix A. California has unique authority under CAA
section 209 (subject to a waiver by EPA) to adopt and implement new
emission standards for many categories of on-road vehicles and engines
and new and in-use off-road vehicles and engines.
The State is working with EPA on goods movement activities and is
implementing programs to reduce emissions from ship auxiliary engines,
locomotives, harbor craft and new cargo handling equipment. In
addition, the State has standards for lawn and garden equipment,
recreational vehicles and boats, and other off-road sources that
require newly manufactured equipment to be 80-98 percent cleaner than
their uncontrolled counterparts. Id. Finally, the State has adopted
many measures that focus on achieving reductions from in-use mobile
sources that include more stringent inspection and maintenance
requirements in California's Smog
[[Page 57880]]
Check program, truck and bus idling restrictions, and various incentive
programs. Appendix A of the TSD includes a list of all measures adopted
by CARB between 1990 and the beginning of 2007. These measures,
reductions from which are reflected in the Plan's baseline inventories,
fall into two categories: measures that are subject to a waiver of
Federal pre-emption under CAA section 209 (section 209 waiver measures
or waiver measures) and those for which the State is not required to
obtain a waiver (non-waiver measures). Emissions reductions from waiver
measures are fully creditable in attainment and RFP demonstrations and
may be used to meet other CAA requirements, such as contingency
measures. See TSD, section II.C. and EPA's proposed and final approval
of the SJV 1-Hour Ozone Plan at 74 FR 33933, 33938 (July 14, 2009) and
75 FR 10420 (March 8, 2010). Generally, the State's baseline non-waiver
measures have been approved by EPA into the SIP and are fully
creditable for meeting CAA requirements. See TSD, Appendix A.
CARB developed its proposed 2007 State Strategy after an extensive
public consultation process to identify potential SIP measures.\22\
Through this process, CARB identified and has committed to develop 15
new or revised control measures. See also the discussion on enforceable
commitments below. These measures focus on cleaning up the in-use fleet
as well as increasing the stringency of emissions standards for a
number of engine categories, fuels, and consumer products. They build
on CARB's existing program, which addresses emissions from all types of
mobile sources through both regulations and incentive programs. See
Appendix A of the TSD. Table 4 lists the defined measures in the 2007
State Strategy and their current adoption an