Air Plan Approvals, Idaho: Logan Utah/Idaho PM2.5, 25208-25211 [2017-11226]
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individual submitting the comment (or
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behalf of an association, business, labor
union, etc.). You may review a Privacy
Act notice regarding our public dockets
in the March 24, 2005 issue of the
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Information on Service for Individuals
With Disabilities
For information on facilities or
services for individuals with disabilities
or to request special assistance at the
tribal consultation, contact at Mr. Laird
Hail at the telephone number or email
address indicated under the FOR
FURTHER INFORMATION CONTACT section of
this notice.
Tribal Government to Government
Consultation
The Coast Guard will hold a formal
tribal government to government
consultation regarding its proposed rule
on Thursday, July 13, 2017 from 9 a.m.
to 3 p.m. at the location to be published
shortly. We request that tribes intending
to participate in this consultation
submit the following information to the
person in the FOR FURTHER INFORMATION
CONTACT section of this document by
June 30, 2017: (1) Whether the tribe will
attend the face-to-face tribal
consultation, (2) the name and contact
information of anyone other than the
Chief Executive of the tribe that is
authorized to engage in government to
government consultation with the Coast
Guard for this tribal consultation, and
(3) any proposed agenda items and
written materials it intends to present.
We will also provide a written summary
of the government to government tribal
consultation and comments and will
place that summary in the docket.
Members of the public will have time to
submit further comments between the
posting of the summary of the tribal
consultation and the closing of the
comment period.
Dated: May 26, 2017.
D.G. Throop,
Rear Admiral, U.S. Coast Guard, Commander,
Thirteenth Coast Guard District.
[FR Doc. 2017–11456 Filed 5–30–17; 4:15 pm]
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ENVIRONMENTAL PROTECTION
AGENCY
[EPA–R10–OAR–2015–0067; FRL–9962–99–
Region 10]
Air Plan Approvals, Idaho: Logan Utah/
Idaho PM2.5 Nonattainment Area
Environmental Protection
Agency (EPA).
ACTION: Proposed rule; supplemental.
AGENCY:
The Environmental Protection
Agency (EPA) is proposing to approve
revisions to Idaho’s State
Implementation Plan (SIP) submitted in
2012 and 2014 to address Clean Air Act
(CAA) requirements for the Idaho
portion of the Logan, Utah-Idaho fine
particulate matter (PM2.5) nonattainment
area (Logan UT-ID area). Based on
newly available air quality monitoring
data, the EPA is proposing to approve
Idaho’s attainment demonstration and
approve Idaho’s 2014 Motor Vehicle
Emissions Budgets (MVEBs) as early
progress budgets. Additionally, the EPA
is proposing to conditionally approve
Reasonable Further Progress (RFP),
Quantitative Milestones (QMs), and
revised MVEBs for the Idaho portion of
the nonattainment area, based on
Idaho’s commitment to adopt and
submit updates to these attainment plan
elements within one year of the effective
date of our final action.
DATES: Written comments must be
received on or before July 3, 2017.
ADDRESSES: Submit your comments,
identified by Docket ID No. EPA–R10–
OAR–2015–0067 at https://
www.regulations.gov. Follow the online
instructions for submitting comments.
Once submitted, comments cannot be
edited or removed from Regulations.gov.
The EPA may publish any comment
received to its public docket. Do not
submit electronically any information
you consider to be Confidential
Business Information (CBI) or other
information, the disclosure of which is
restricted by statute. Multimedia
submissions (audio, video, etc.) must be
accompanied by a written comment.
The written comment is considered the
official comment and should include
discussion of all points you wish to
make. The EPA will generally not
consider comments or comment
contents located outside of the primary
submission (i.e., on the web, cloud, or
other file sharing system). For
additional submission methods, the full
EPA public comment policy,
information about CBI or multimedia
submissions, and general guidance on
making effective comments, please visit
SUMMARY:
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Jeff
Hunt, Air Planning Unit, Office of Air
and Waste (OAW–150), Environmental
Protection Agency, Region 10, 1200
Sixth Ave, Suite 900, Seattle, WA
98101; telephone number: (206) 553–
0256; email address: hunt.jeff@epa.gov.
SUPPLEMENTARY INFORMATION:
Throughout this document, wherever
‘‘we,’’ ‘‘us,’’ or ‘‘our’’ is used, it is
intended to refer to the EPA.
FOR FURTHER INFORMATION CONTACT:
40 CFR Part 52
PO 00000
https://www.epa.gov/dockets/
commenting-epa-dockets.
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Table of Contents
I. Background
II. Proposed Action
III. Statutory and Executive Orders Review
I. Background
On October 17, 2006, the EPA
strengthened the 24-hour PM2.5 National
Ambient Air Quality Standards
(NAAQS) by lowering the numerical
level of the NAAQS to 35 mg/m3 (71 FR
61144). Following promulgation of a
new or revised NAAQS, the EPA is
required by the CAA to promulgate
designations for areas throughout the
United States in accordance with
section 107(d) of the CAA. On
November 13, 2009, the EPA designated
a portion of Franklin County, Idaho as
part of the cross-boundary Logan UT-ID
area for the 2006 24-hour PM2.5 NAAQS.
This designation requires Idaho to
prepare and submit an attainment plan
for the Idaho portion of the
nonattainment area meeting applicable
statutory and regulatory requirements
and providing for attainment of the 2006
24-hour PM2.5 NAAQS in the Logan UTID area (74 FR 58688). On December 14,
2012, the Idaho Department of
Environmental Quality (IDEQ)
submitted an attainment plan SIP
submission developed to address
attainment planning requirements for
the Idaho portion of the Logan UT-ID
area for the 2006 24-hour PM2.5 NAAQS.
On December 24, 2014, the IDEQ
submitted a supplement to the 2012 SIP
submission that included revised
attainment demonstration modeling
intended to show that the area would
meet the December 31, 2015 attainment
date specified in subpart 4, part D of
title I of the CAA. The 2012 SIP
submittal and 2014 amendment are
hereinafter referred to as the Idaho
attainment plan.
In a proposed rulemaking published
October 27, 2016, the EPA proposed a
partial approval and partial disapproval
of the Idaho attainment plan with regard
to specific requirements for attainment
plans for the 2006 24-hour PM2.5
NAAQS. Specifically, the EPA proposed
to approve Idaho’s woodstove
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curtailment ordinances, burn bans,
heating device restrictions, and
woodstove change-out programs
included in the Idaho attainment plan
as meeting Reasonably Available
Control Measures and Reasonably
Available Control Technology (RACM/
RACT) requirements for the Idaho
portion of the Logan, UT-ID area (81 FR
74741). The EPA proposed to
disapprove the attainment
demonstration, contingency measures,
RFP, QM, and MVEB elements of the
Idaho attainment plan for the Idaho
portion of the area. On January 4, 2017,
the EPA finalized the approval of the
RACM/RACT measures, finalized the
disapproval of the contingency
measures, and deferred action on the
SIP submissions with respect to the
attainment demonstration, RFP, QM,
and MVEB requirements (82 FR 732).
These deferred attainment plan
elements are addressed in this proposed
action.
In a separate proposed action
published December 16, 2016,
pertaining to whether the Logan, UT-ID
area attained the 2006 24-hour PM2.5
NAAQS, the EPA stated that the Logan,
Utah Federal Reference Method (FRM)
monitor relied upon for determining
compliance with the PM2.5 NAAQS did
not have fully complete and valid 2015
data in accordance with 40 CFR part 58
(81 FR 91088). Based upon that
incomplete data, the EPA proposed to
determine that the area had failed to
attain the NAAQS by December 31,
2015. However, since that time, the
State of Utah and the EPA have
examined data from the co-located
Federal Equivalent Method (FEM)
continuous PM2.5 monitor in Logan,
Utah, and the EPA has determined that
data from this FEM monitor can be used
to substitute for days without valid data
at the FRM monitor in order to create a
valid and complete data set for 2015.1
This data, which is available in the
docket, shows a 98th percentile value of
29 mg/m3 for 2015, meeting the ‘‘clean
data’’ criterion for a 1-year attainment
date extension.2 IDEQ requested that the
EPA use the discretion allowed under
CAA section 188(d) to grant a 1-year
extension of the Moderate area
attainment date for the Logan, UT-ID
area, from December 31, 2015 to
December 31, 2016, and requested a
second 1-year extension based on 2016
monitoring data.3 The State of Utah also
1 See Memorandum from Joshua Rickard, ‘‘Logan
Utah PM2.5 2015 Design Value,’’ May 8, 2017.
2 See spreadsheet referred to in memorandum.
This criterion is set forth in 40 CFR 51.1005(a)(ii).
3 See letters dated December 15, 2015, February
26, 2016, and April 25, 2017.
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requested two 1-year extensions of the
Moderate area attainment date based on
the validated 2015 air quality
monitoring data and the newly available
2016 data.4 The EPA will act separately
on the 1-year extension requests.
The EPA’s evaluation of the
additional data now available for
calendar year 2015 at the Logan, Utah
monitors also affects the agency’s prior
evaluation of the Idaho attainment plan.
Additionally, in a letter dated April 25,
2017, IDEQ committed to revising the
Idaho attainment plan to address RFP,
QM, and MVEB requirements by August
1, 2018. Based upon our evaluation of
these two factors, the EPA is issuing this
supplemental proposal to explain and
take comment upon its revised analysis
of Idaho’s SIP submissions.
A. Attainment Demonstration
A key factor in our October 27, 2016
proposed disapproval of Idaho’s
attainment demonstration was that the
2013–2015 design value exceeded the
level of the 2006 24-hour PM2.5 NAAQS
and air quality data available at that
time was not available to establish that
the 2015 98th percentile was below the
standard, as necessary to qualify for a
potential 1-year attainment date
extension. Therefore, the EPA proposed
to disapprove the modeled attainment
demonstration portion of the Idaho
attainment plan which indicated that
the Logan, UT-ID area would attain the
NAAQS by the December 31, 2015
attainment date (81 FR 74741, at page
74744).
The EPA’s subsequent evaluation of
the monitoring data indicates that the
Logan, UT-ID area did meet the
numerical level of the 24-hour PM2.5
NAAQS in 2015, as projected in the
modeled attainment demonstration
portion of the Idaho attainment plan.
The fact that the monitoring data
confirms the State’s projections in the
attainment demonstration affects the
EPA’s evaluation of the attainment
demonstration and supports a proposed
approval rather than prior proposed
disapproval.
In particular, the EPA’s August 24,
2016, Fine Particulate Matter National
Ambient Air Quality Standards: State
Implementation Plan Requirements,
Final Rule (PM2.5 SIP Requirements
Rule) provides that a state’s modeled
attainment demonstration needs to
establish that an area will attain the
NAAQS by the projected attainment
date, but for purposes of modeling a
state may elect to demonstrate that the
area will meet the numerical level of the
NAAQS the final year (81 FR 58010, at
4 See
PO 00000
letters dated May 1, 2017 and May 2, 2017.
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page 58054). The EPA authorizes this
approach because of the potential
availability of extensions of the
attainment date under relevant
provisions of the CAA. In other words,
if ambient data show attainment-level
concentrations in the final statutory
attainment year, a state may be eligible
for up to two 1-year extensions of the
attainment date. See 40 CFR 51.1005.
Using this provision, a state may be able
to attain the NAAQS by the extended
attainment date, even if the measured
design value for an area does not meet
the NAAQS by the end of the 6th
calendar year after designation. For this
reason, the EPA’s PM2.5 SIP
Requirements Rule indicates that it is
acceptable for a state to model air
quality levels for the final statutory
attainment year in which the area is
required to attain the standard (in this
case 2015).
In the Logan UT-ID area, both
measured and modeled PM2.5
concentrations in 2015 were consistent
with meeting the numerical level of the
NAAQS in both Utah and Idaho.5 The
EPA is therefore proposing to approve
the attainment demonstration portion of
the Idaho attainment plan on the basis
that the attainment-level concentrations
modeled for this area (based on the
Idaho, Utah, and federal control
measures already in place) are
consistent with the updated 2015
monitoring data for the nonattainment
area. We also note that the joint Idaho
and Utah modeling included in
Appendix D of the Idaho attainment
plan followed applicable EPA modeling
guidance in predicting that existing
state and federal control measures to
address motor vehicle, wood stove, and
other emission sources would bring
PM2.5 concentrations below 35 mg/m3 by
2015 in the Logan, UT-ID area. Because
there is now valid and complete 2015
data confirming the projected modeling
concentrations in Idaho’s modeled
attainment demonstration, the EPA is
proposing to approve IDEQ’s attainment
demonstration.
B. RFP, QMs, and MVEBs
In our October 27, 2016 action, the
EPA proposed to disapprove the Idaho
attainment plan with respect to the RFP
and QM requirements for the 2006 24hour PM2.5 NAAQS. The Idaho
attainment plan did not address these
attainment plan elements consistent
with current requirements because it
did not include QMs and did not
5 The Franklin County, Idaho monitor recorded a
valid 2015 98th percentile of 18.8 mg/m3. See
https://www.epa.gov/air-trends/air-quality-designvalues#report.
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include any RFP analysis or plan, other
than the modeling demonstration
showing attainment by 2015 due to the
control measures already in place. We
noted, however, that, ‘‘[i]f properly
accounted for and specified in the SIP
submittal, such reductions might be
sufficient to provide the necessary
demonstration of RFP for use in a
quantitative milestones report.’’ See 81
FR 74741, at page 74748. In addition,
the EPA proposed to disapprove the
MVEBs because at the time that notice
was issued, air quality data indicated
the area was not attaining the standard,
and therefore MVEBs could not be
considered consistent with the
applicable requirements for reasonable
further progress and attainment. See 40
CFR 93.118(e).
Following the October 27, 2016
proposed disapproval of the Idaho
attainment plan, there have been two
significant developments. First, the EPA
has now evaluated additional
monitoring data indicating that the
Logan, UT-ID area met the numerical
level of the 2006 24-hour PM2.5 NAAQS
in 2015. This fact affects the EPA’s
evaluation of the RFP, QM, and MVEB
elements of the SIP submissions.
Second, based on further evaluation of
the issues, in an April 25, 2017 letter,
the State of Idaho committed to make a
SIP submission that will further address
the RFP, QM, and MVEB requirements.
Because the State has committed to
address these requirements within one
year in specific ways that the EPA
considers appropriate, the EPA is now
proposing a conditional approval of the
Idaho attainment plan with respect to
these requirements. Under section
110(k)(4) of the CAA, the EPA has
authority to approve a SIP submission
conditionally when a state commits to
revise the submission to adopt specific
enforceable measures by a date certain,
but not later than one year after
approval of the plan.
As discussed in the 2016 PM2.5 SIP
Requirements Rule, a state’s attainment
plan SIP submission must include an
RFP plan or analysis that includes three
components: (1) An implementation
schedule for control measures on
sources in the nonattainment area, (2)
RFP projected emissions for each
applicable quantitative milestone year,
including emissions reductions, based
on the anticipated control measure
implementation schedule; and (3) an
analysis that demonstrates that this
schedule of aggregate emissions
reductions achieves sufficient progress
toward attainment between the
applicable baseline year to the
attainment year. In a letter dated April
25, 2017, Idaho committed to address
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the required elements discussed above.
Specifically, the April 25, 2017
commitment letter contains an
implementation schedule for control
measures on sources in the
nonattainment area and projected
emissions reductions resulting from that
implementation schedule. Accordingly,
Idaho committed in the April 25, 2017
letter to make a SIP submission that will
include an RFP plan or analysis that
will explain how the existing measures
meet the annual RFP requirement and
include appropriate QMs for the
purposes of establishing that the RFP
requirement is met, consistent with
subpart 4 requirements.
In our October 27, 2016 proposal, the
EPA noted that Idaho relied on the
control measures included in the Idaho
attainment plan and already approved
into the SIP, in addition to the Utah
control measures and ongoing motor
vehicle fleet turnover with cleaner cars,
to provide the emissions reductions
projected to bring the area into
attainment by 2015. In particular,
IDEQ’s modeling used the EPA’s Motor
Vehicle Emission Simulator
(MOVES2010a) model to project
emissions reductions of 43% NOX and
37% VOC between a baseline year of
2008 and the end of 2014. Idaho
indicated that these projected
reductions, primarily from ongoing
motor vehicle fleet turnover of Idaho
vehicles, would be expected to provide
large and generally linear emissions
reductions.6 Idaho regulates both NOX
and VOC as precursors for purposes of
the 2006 24-hour PM2.5 NAAQS in the
Logan, UT-ID area, so these reductions
are appropriate for purposes of the RFP
requirement.
We noted in the proposal that, ‘‘[i]f
properly accounted for and specified in
the SIP submittal, such reductions
might be sufficient to provide the
necessary demonstration of RFP for use
in a quantitative milestones report.’’ See
81 FR 74741, at page 74748. In response,
Idaho included the following
information in the April 25, 2017
commitment letter: The woodstove
curtailment and burn ban ordinances
were adopted and in place during the
summer and fall of 2012, with estimated
emission reductions of 0.06 tons per
winter day (tpwd) direct PM2.5, 0.009
tpwd nitrogen oxides (NOX), and 0.078
tpwd volatile organic compounds
(VOC). The woodstove change-out
programs conducted in 2006–2007,
2011–2012, and 2013–2014 had already
commenced and achieved sustained and
quantifiable emission reductions of 8.04
tons per year (tpy) PM2.5, 0.47 tpy NOX,
6 See
PO 00000
section 5.5.2 of Idaho’s 2012 SIP revision.
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and 18.57 tpy VOC. In addition, the
IDEQ negotiated road sanding
agreements effective July 16, 2012 and
October 25, 2012, with quantified
emissions reductions of 0.10 tpwd
direct PM2.5 in reentrained road dust
emissions.7 Again, each of these
measures are projected to attain
quantifiable reductions of emissions of
the relevant pollutants in the Idaho
portion of the Logan, UT-ID area that
Idaho could thus use to show reasonable
progress towards attainment by 2015,
and Idaho could use documentation of
the implementation of these measures to
meet the QM requirement, e.g., the QM
for the first 3-year quantitative
milestone period from 2014 to 2017.
With respect to QMs, the 2016 PM2.5
SIP Requirements Rule requires that the
attainment plan contain quantitative
milestones to be achieved by the
milestone dates that provide for
objective evaluation of reasonable
further progress toward timely
attainment. For a Moderate area plan
such as that at issue in this proposed
action, quantitative milestones are
required for years 4.5 (year 2014) and
7.5 (year 2017) after the December 2009
effective date of designation. The 2016
PM2.5 SIP Requirements Rule states that
the quantitative milestones contained in
the attainment plan for a Moderate
nonattainment area should be
constructed such that they can be
tracked, quantified and/or measured
adequately in order for a state to meet
its milestone reporting obligations,
which are due 90 days after a given
milestone date. The EPA suggested
possible metrics that ‘‘support and
demonstrate how the overall
quantitative milestones identified for an
area may be met, such as percent
implementation of control strategies,
percent compliance with implemented
control measures, and adherence to a
compliance schedule.’’ This list was not
exclusive or exhaustive but reflected the
EPA’s view that the purpose of the
quantitative milestone requirement is to
provide an objective way to determine
whether the area is making the
necessary progress towards attainment
by the applicable attainment date, i.e.,
to verify that the separate RFP
requirement is met.
Idaho’s April 25, 2017 commitment
letter describes Idaho’s plan for making
a SIP submission that will include QMs
in the attainment plan for the Logan,
UT-ID area. This commitment presents
Idaho’s approach for revising the
attainment plan to include a detailed
implementation schedule, estimated
7 See 2012 SIP submission, Appendix C, Road
Dust Documentation.
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emissions reductions, and potential
2017 QM reporting metrics for the
control measures discussed above,
including wood stove and open burning
curtailment days, wood stove changeouts, and road sanding agreements.
Idaho’s proposed QMs are consistent
with EPA’s suggested metrics and will
provide an objective way to determine
whether the area is making necessary
progress towards attainment. Therefore,
the commitment letter demonstrates that
the State will, within one year of EPA’s
finalization, revise the Idaho attainment
plan to satisfy the QM requirement.8
Lastly, with respect to MVEBs, Idaho
calculated projected 2014 emission
budgets based on the former subpart 1
attainment deadline of December 2014.
On April 25, 2017, Idaho requested that
the EPA approve the submitted 2014
MVEBs as early progress budgets.9 We
have concluded that the submitted
budgets are consistent with making
progress toward attaining the 2006 PM2.5
NAAQS by December 31, 2015, because
the budgets show reduced emissions
from the motor vehicle sector over time.
Therefore, we are proposing approval of
the submitted 2014 MVEBs as early
progress budgets. We are also proposing
to conditionally approve Idaho’s
commitment to submit MVEBs for the
2015 attainment year.
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II. Proposed Action
For the reasons discussed above, the
EPA is proposing to approve the
attainment demonstration in the Idaho
attainment plan for the Idaho portion of
the Logan UT-ID area. The EPA is also
proposing to approve the 2014 MVEBs
as early progress budgets, in that they
are consistent with making progress
toward attainment of the 2006 PM2.5
NAAQS by December 31, 2015. Lastly,
the EPA is proposing to conditionally
approve RFP, QMs, and revised MVEBs
in the Idaho attainment plan, based on
8 Our confidence in Idaho’s ability to
expeditiously revise the Idaho attainment plan to
include valid QMs is bolstered by the information
the State submitted in a February 26, 2016 letter.
Specifically, the February 26, 2016 letter provides
a list of all woodstove and open burning
curtailment days that have occurred in the Idaho
portion of the Logan, UT-ID area since the program
was established, along with the public outreach
materials and criteria used in forecasting
curtailment days. The letter also gives a listing of
all woodstove change-outs conducted in the area to
date and quantifies the estimated emission
reductions achieved through those change-outs
since 2006. Lastly, the letter details compliance
with the road sanding agreements documenting the
amount of sand and salt used by Franklin County
Road and Bridge verifying that the local agency has
met its obligations since these agreements were put
in place in 2012.
9 Early progress budgets for PM
2.5 areas were
discussed in the July 1, 2004 transportation
conformity final rule. (See 69 FR 40030–1.)
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IDEQ’s April 25, 2017 commitment to
adopt and submit updated plan
elements to meet these requirements.
Under a conditional approval, the State
must adopt and submit the specific
revisions it has committed to by a date
certain but not later than within one
year of the EPA’s finalization.10 If the
EPA fully approves the submittal of the
revisions specified in the commitment
letter, the conditional nature of the
approval would be removed and the
submittal would become fully approved.
If the State does not submit these
revisions by a date certain within one
year of final action, or if the EPA finds
the State’s revisions to be incomplete, or
EPA disapproves the State’s revisions, a
conditional approval will convert to a
disapproval. If any of these occur and
the EPA’s conditional approval converts
to a disapproval, that will constitute a
disapproval of a required plan element
under part D of title I of the Act, which
starts an 18-month clock for sanctions,
see section 179(a)(2), and the two-year
clock for a Federal Implementation Plan
(FIP), see CAA section 110(c)(1)(B).
III. Statutory and Executive Orders
Review
Under the CAA, the Administrator is
required to approve a SIP submission
that complies with the provisions of the
Act and applicable Federal regulations.
42 U.S.C. 7410(k); 40 CFR 52.02(a).
Thus, in reviewing SIP submissions, the
EPA’s role is to approve state choices,
provided that they meet the criteria of
the CAA. Accordingly, this action
merely proposes to approve state law as
meeting Federal requirements and does
not impose additional requirements
beyond those imposed by state law. For
that reason, this action:
• Is not a ‘‘significant regulatory
action’’ subject to review by the Office
of Management and Budget under
Executive Orders 12866 (58 FR 51735,
October 4, 1993) and 13563 (76 FR 3821,
January 21, 2011);
• Does not impose an information
collection burden under the provisions
of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.);
• Is certified as not having a
significant economic impact on a
substantial number of small entities
under the Regulatory Flexibility Act (5
U.S.C. 601 et seq.);
• Does not contain any unfunded
mandate or significantly or uniquely
affect small governments, as described
10 In IDEQ’s April 25, 2017 commitment letter,
IDEQ committed to a date certain to submit
revisions by August 1, 2018, which we anticipate
will be within one year of the effective date of final
action.
PO 00000
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in the Unfunded Mandates Reform Act
of 1995 (Pub. L. 104–4);
• Does not have Federalism
implications as specified in Executive
Order 13132 (64 FR 43255, August 10,
1999);
• Is not an economically significant
regulatory action based on health or
safety risks subject to Executive Order
13045 (62 FR 19885, April 23, 1997);
• Is not a significant regulatory action
subject to Executive Order 13211 (66 FR
28355, May 22, 2001);
• Is not subject to requirements of
section 12(d) of the National
Technology Transfer and Advancement
Act of 1995 (15 U.S.C. 272 note) because
this action does not involve technical
standards; and
• Does not provide the 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
(59 FR 7629, February 16, 1994).
The SIP is not approved to apply on
any Indian reservation land or in any
other area where the EPA or an Indian
tribe has demonstrated that a tribe has
jurisdiction. In those areas of Indian
country, the rule does not have tribal
implications as specified by Executive
Order 13175 (65 FR 67249, November 9,
2000).
List of Subjects in 40 CFR Part 52
Environmental protection, Air
pollution control, Carbon monoxide,
Incorporation by reference,
Intergovernmental relations, Lead,
Nitrogen dioxide, Ozone, Particulate
matter, Reporting and recordkeeping
requirements, Sulfur oxides, Volatile
organic compounds.
Dated: May 15, 2017.
Michelle L. Pirzadeh,
Acting Regional Administrator, Region 10.
[FR Doc. 2017–11226 Filed 5–31–17; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
[EPA–R03–OAR–2017–0152; FRL–9962–45–
Region 3]
Air Plan Approval; Delaware;
Infrastructure Requirements for the
2012 Fine Particulate Matter Standard
Environmental Protection
Agency (EPA).
ACTION: Proposed rule.
AGENCY:
The Environmental Protection
Agency (EPA) is proposing to approve
SUMMARY:
E:\FR\FM\01JNP1.SGM
01JNP1
Agencies
[Federal Register Volume 82, Number 104 (Thursday, June 1, 2017)]
[Proposed Rules]
[Pages 25208-25211]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-11226]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R10-OAR-2015-0067; FRL-9962-99-Region 10]
Air Plan Approvals, Idaho: Logan Utah/Idaho PM2.5
Nonattainment Area
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule; supplemental.
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SUMMARY: The Environmental Protection Agency (EPA) is proposing to
approve revisions to Idaho's State Implementation Plan (SIP) submitted
in 2012 and 2014 to address Clean Air Act (CAA) requirements for the
Idaho portion of the Logan, Utah-Idaho fine particulate matter
(PM2.5) nonattainment area (Logan UT-ID area). Based on
newly available air quality monitoring data, the EPA is proposing to
approve Idaho's attainment demonstration and approve Idaho's 2014 Motor
Vehicle Emissions Budgets (MVEBs) as early progress budgets.
Additionally, the EPA is proposing to conditionally approve Reasonable
Further Progress (RFP), Quantitative Milestones (QMs), and revised
MVEBs for the Idaho portion of the nonattainment area, based on Idaho's
commitment to adopt and submit updates to these attainment plan
elements within one year of the effective date of our final action.
DATES: Written comments must be received on or before July 3, 2017.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R10-
OAR-2015-0067 at https://www.regulations.gov. Follow the online
instructions for submitting comments. Once submitted, comments cannot
be edited or removed from Regulations.gov. The EPA may publish any
comment received to its public docket. Do not submit electronically any
information you consider to be Confidential Business Information (CBI)
or other information, the disclosure of which is restricted by statute.
Multimedia submissions (audio, video, etc.) must be accompanied by a
written comment. The written comment is considered the official comment
and should include discussion of all points you wish to make. The EPA
will generally not consider comments or comment contents located
outside of the primary submission (i.e., on the web, cloud, or other
file sharing system). For additional submission methods, the full EPA
public comment policy, information about CBI or multimedia submissions,
and general guidance on making effective comments, please visit https://www.epa.gov/dockets/commenting-epa-dockets.
FOR FURTHER INFORMATION CONTACT: Jeff Hunt, Air Planning Unit, Office
of Air and Waste (OAW-150), Environmental Protection Agency, Region 10,
1200 Sixth Ave, Suite 900, Seattle, WA 98101; telephone number: (206)
553-0256; email address: hunt.jeff@epa.gov.
SUPPLEMENTARY INFORMATION: Throughout this document, wherever ``we,''
``us,'' or ``our'' is used, it is intended to refer to the EPA.
Table of Contents
I. Background
II. Proposed Action
III. Statutory and Executive Orders Review
I. Background
On October 17, 2006, the EPA strengthened the 24-hour
PM2.5 National Ambient Air Quality Standards (NAAQS) by
lowering the numerical level of the NAAQS to 35 [micro]g/m\3\ (71 FR
61144). Following promulgation of a new or revised NAAQS, the EPA is
required by the CAA to promulgate designations for areas throughout the
United States in accordance with section 107(d) of the CAA. On November
13, 2009, the EPA designated a portion of Franklin County, Idaho as
part of the cross-boundary Logan UT-ID area for the 2006 24-hour
PM2.5 NAAQS. This designation requires Idaho to prepare and
submit an attainment plan for the Idaho portion of the nonattainment
area meeting applicable statutory and regulatory requirements and
providing for attainment of the 2006 24-hour PM2.5 NAAQS in
the Logan UT-ID area (74 FR 58688). On December 14, 2012, the Idaho
Department of Environmental Quality (IDEQ) submitted an attainment plan
SIP submission developed to address attainment planning requirements
for the Idaho portion of the Logan UT-ID area for the 2006 24-hour
PM2.5 NAAQS. On December 24, 2014, the IDEQ submitted a
supplement to the 2012 SIP submission that included revised attainment
demonstration modeling intended to show that the area would meet the
December 31, 2015 attainment date specified in subpart 4, part D of
title I of the CAA. The 2012 SIP submittal and 2014 amendment are
hereinafter referred to as the Idaho attainment plan.
In a proposed rulemaking published October 27, 2016, the EPA
proposed a partial approval and partial disapproval of the Idaho
attainment plan with regard to specific requirements for attainment
plans for the 2006 24-hour PM2.5 NAAQS. Specifically, the
EPA proposed to approve Idaho's woodstove
[[Page 25209]]
curtailment ordinances, burn bans, heating device restrictions, and
woodstove change-out programs included in the Idaho attainment plan as
meeting Reasonably Available Control Measures and Reasonably Available
Control Technology (RACM/RACT) requirements for the Idaho portion of
the Logan, UT-ID area (81 FR 74741). The EPA proposed to disapprove the
attainment demonstration, contingency measures, RFP, QM, and MVEB
elements of the Idaho attainment plan for the Idaho portion of the
area. On January 4, 2017, the EPA finalized the approval of the RACM/
RACT measures, finalized the disapproval of the contingency measures,
and deferred action on the SIP submissions with respect to the
attainment demonstration, RFP, QM, and MVEB requirements (82 FR 732).
These deferred attainment plan elements are addressed in this proposed
action.
In a separate proposed action published December 16, 2016,
pertaining to whether the Logan, UT-ID area attained the 2006 24-hour
PM2.5 NAAQS, the EPA stated that the Logan, Utah Federal
Reference Method (FRM) monitor relied upon for determining compliance
with the PM2.5 NAAQS did not have fully complete and valid
2015 data in accordance with 40 CFR part 58 (81 FR 91088). Based upon
that incomplete data, the EPA proposed to determine that the area had
failed to attain the NAAQS by December 31, 2015. However, since that
time, the State of Utah and the EPA have examined data from the co-
located Federal Equivalent Method (FEM) continuous PM2.5
monitor in Logan, Utah, and the EPA has determined that data from this
FEM monitor can be used to substitute for days without valid data at
the FRM monitor in order to create a valid and complete data set for
2015.\1\ This data, which is available in the docket, shows a 98th
percentile value of 29 [micro]g/m\3\ for 2015, meeting the ``clean
data'' criterion for a 1-year attainment date extension.\2\ IDEQ
requested that the EPA use the discretion allowed under CAA section
188(d) to grant a 1-year extension of the Moderate area attainment date
for the Logan, UT-ID area, from December 31, 2015 to December 31, 2016,
and requested a second 1-year extension based on 2016 monitoring
data.\3\ The State of Utah also requested two 1-year extensions of the
Moderate area attainment date based on the validated 2015 air quality
monitoring data and the newly available 2016 data.\4\ The EPA will act
separately on the 1-year extension requests.
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\1\ See Memorandum from Joshua Rickard, ``Logan Utah
PM2.5 2015 Design Value,'' May 8, 2017.
\2\ See spreadsheet referred to in memorandum. This criterion is
set forth in 40 CFR 51.1005(a)(ii).
\3\ See letters dated December 15, 2015, February 26, 2016, and
April 25, 2017.
\4\ See letters dated May 1, 2017 and May 2, 2017.
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The EPA's evaluation of the additional data now available for
calendar year 2015 at the Logan, Utah monitors also affects the
agency's prior evaluation of the Idaho attainment plan. Additionally,
in a letter dated April 25, 2017, IDEQ committed to revising the Idaho
attainment plan to address RFP, QM, and MVEB requirements by August 1,
2018. Based upon our evaluation of these two factors, the EPA is
issuing this supplemental proposal to explain and take comment upon its
revised analysis of Idaho's SIP submissions.
A. Attainment Demonstration
A key factor in our October 27, 2016 proposed disapproval of
Idaho's attainment demonstration was that the 2013-2015 design value
exceeded the level of the 2006 24-hour PM2.5 NAAQS and air
quality data available at that time was not available to establish that
the 2015 98th percentile was below the standard, as necessary to
qualify for a potential 1-year attainment date extension. Therefore,
the EPA proposed to disapprove the modeled attainment demonstration
portion of the Idaho attainment plan which indicated that the Logan,
UT-ID area would attain the NAAQS by the December 31, 2015 attainment
date (81 FR 74741, at page 74744).
The EPA's subsequent evaluation of the monitoring data indicates
that the Logan, UT-ID area did meet the numerical level of the 24-hour
PM2.5 NAAQS in 2015, as projected in the modeled attainment
demonstration portion of the Idaho attainment plan. The fact that the
monitoring data confirms the State's projections in the attainment
demonstration affects the EPA's evaluation of the attainment
demonstration and supports a proposed approval rather than prior
proposed disapproval.
In particular, the EPA's August 24, 2016, Fine Particulate Matter
National Ambient Air Quality Standards: State Implementation Plan
Requirements, Final Rule (PM2.5 SIP Requirements Rule)
provides that a state's modeled attainment demonstration needs to
establish that an area will attain the NAAQS by the projected
attainment date, but for purposes of modeling a state may elect to
demonstrate that the area will meet the numerical level of the NAAQS
the final year (81 FR 58010, at page 58054). The EPA authorizes this
approach because of the potential availability of extensions of the
attainment date under relevant provisions of the CAA. In other words,
if ambient data show attainment-level concentrations in the final
statutory attainment year, a state may be eligible for up to two 1-year
extensions of the attainment date. See 40 CFR 51.1005. Using this
provision, a state may be able to attain the NAAQS by the extended
attainment date, even if the measured design value for an area does not
meet the NAAQS by the end of the 6th calendar year after designation.
For this reason, the EPA's PM2.5 SIP Requirements Rule
indicates that it is acceptable for a state to model air quality levels
for the final statutory attainment year in which the area is required
to attain the standard (in this case 2015).
In the Logan UT-ID area, both measured and modeled PM2.5
concentrations in 2015 were consistent with meeting the numerical level
of the NAAQS in both Utah and Idaho.\5\ The EPA is therefore proposing
to approve the attainment demonstration portion of the Idaho attainment
plan on the basis that the attainment-level concentrations modeled for
this area (based on the Idaho, Utah, and federal control measures
already in place) are consistent with the updated 2015 monitoring data
for the nonattainment area. We also note that the joint Idaho and Utah
modeling included in Appendix D of the Idaho attainment plan followed
applicable EPA modeling guidance in predicting that existing state and
federal control measures to address motor vehicle, wood stove, and
other emission sources would bring PM2.5 concentrations
below 35 [micro]g/m\3\ by 2015 in the Logan, UT-ID area. Because there
is now valid and complete 2015 data confirming the projected modeling
concentrations in Idaho's modeled attainment demonstration, the EPA is
proposing to approve IDEQ's attainment demonstration.
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\5\ The Franklin County, Idaho monitor recorded a valid 2015
98th percentile of 18.8 [micro]g/m\3\. See https://www.epa.gov/air-trends/air-quality-design-values#report.
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B. RFP, QMs, and MVEBs
In our October 27, 2016 action, the EPA proposed to disapprove the
Idaho attainment plan with respect to the RFP and QM requirements for
the 2006 24-hour PM2.5 NAAQS. The Idaho attainment plan did
not address these attainment plan elements consistent with current
requirements because it did not include QMs and did not
[[Page 25210]]
include any RFP analysis or plan, other than the modeling demonstration
showing attainment by 2015 due to the control measures already in
place. We noted, however, that, ``[i]f properly accounted for and
specified in the SIP submittal, such reductions might be sufficient to
provide the necessary demonstration of RFP for use in a quantitative
milestones report.'' See 81 FR 74741, at page 74748. In addition, the
EPA proposed to disapprove the MVEBs because at the time that notice
was issued, air quality data indicated the area was not attaining the
standard, and therefore MVEBs could not be considered consistent with
the applicable requirements for reasonable further progress and
attainment. See 40 CFR 93.118(e).
Following the October 27, 2016 proposed disapproval of the Idaho
attainment plan, there have been two significant developments. First,
the EPA has now evaluated additional monitoring data indicating that
the Logan, UT-ID area met the numerical level of the 2006 24-hour
PM2.5 NAAQS in 2015. This fact affects the EPA's evaluation
of the RFP, QM, and MVEB elements of the SIP submissions. Second, based
on further evaluation of the issues, in an April 25, 2017 letter, the
State of Idaho committed to make a SIP submission that will further
address the RFP, QM, and MVEB requirements. Because the State has
committed to address these requirements within one year in specific
ways that the EPA considers appropriate, the EPA is now proposing a
conditional approval of the Idaho attainment plan with respect to these
requirements. Under section 110(k)(4) of the CAA, the EPA has authority
to approve a SIP submission conditionally when a state commits to
revise the submission to adopt specific enforceable measures by a date
certain, but not later than one year after approval of the plan.
As discussed in the 2016 PM2.5 SIP Requirements Rule, a
state's attainment plan SIP submission must include an RFP plan or
analysis that includes three components: (1) An implementation schedule
for control measures on sources in the nonattainment area, (2) RFP
projected emissions for each applicable quantitative milestone year,
including emissions reductions, based on the anticipated control
measure implementation schedule; and (3) an analysis that demonstrates
that this schedule of aggregate emissions reductions achieves
sufficient progress toward attainment between the applicable baseline
year to the attainment year. In a letter dated April 25, 2017, Idaho
committed to address the required elements discussed above.
Specifically, the April 25, 2017 commitment letter contains an
implementation schedule for control measures on sources in the
nonattainment area and projected emissions reductions resulting from
that implementation schedule. Accordingly, Idaho committed in the April
25, 2017 letter to make a SIP submission that will include an RFP plan
or analysis that will explain how the existing measures meet the annual
RFP requirement and include appropriate QMs for the purposes of
establishing that the RFP requirement is met, consistent with subpart 4
requirements.
In our October 27, 2016 proposal, the EPA noted that Idaho relied
on the control measures included in the Idaho attainment plan and
already approved into the SIP, in addition to the Utah control measures
and ongoing motor vehicle fleet turnover with cleaner cars, to provide
the emissions reductions projected to bring the area into attainment by
2015. In particular, IDEQ's modeling used the EPA's Motor Vehicle
Emission Simulator (MOVES2010a) model to project emissions reductions
of 43% NOX and 37% VOC between a baseline year of 2008 and
the end of 2014. Idaho indicated that these projected reductions,
primarily from ongoing motor vehicle fleet turnover of Idaho vehicles,
would be expected to provide large and generally linear emissions
reductions.\6\ Idaho regulates both NOX and VOC as
precursors for purposes of the 2006 24-hour PM2.5 NAAQS in
the Logan, UT-ID area, so these reductions are appropriate for purposes
of the RFP requirement.
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\6\ See section 5.5.2 of Idaho's 2012 SIP revision.
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We noted in the proposal that, ``[i]f properly accounted for and
specified in the SIP submittal, such reductions might be sufficient to
provide the necessary demonstration of RFP for use in a quantitative
milestones report.'' See 81 FR 74741, at page 74748. In response, Idaho
included the following information in the April 25, 2017 commitment
letter: The woodstove curtailment and burn ban ordinances were adopted
and in place during the summer and fall of 2012, with estimated
emission reductions of 0.06 tons per winter day (tpwd) direct
PM2.5, 0.009 tpwd nitrogen oxides (NOX), and
0.078 tpwd volatile organic compounds (VOC). The woodstove change-out
programs conducted in 2006-2007, 2011-2012, and 2013-2014 had already
commenced and achieved sustained and quantifiable emission reductions
of 8.04 tons per year (tpy) PM2.5, 0.47 tpy NOX,
and 18.57 tpy VOC. In addition, the IDEQ negotiated road sanding
agreements effective July 16, 2012 and October 25, 2012, with
quantified emissions reductions of 0.10 tpwd direct PM2.5 in
reentrained road dust emissions.\7\ Again, each of these measures are
projected to attain quantifiable reductions of emissions of the
relevant pollutants in the Idaho portion of the Logan, UT-ID area that
Idaho could thus use to show reasonable progress towards attainment by
2015, and Idaho could use documentation of the implementation of these
measures to meet the QM requirement, e.g., the QM for the first 3-year
quantitative milestone period from 2014 to 2017.
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\7\ See 2012 SIP submission, Appendix C, Road Dust
Documentation.
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With respect to QMs, the 2016 PM2.5 SIP Requirements
Rule requires that the attainment plan contain quantitative milestones
to be achieved by the milestone dates that provide for objective
evaluation of reasonable further progress toward timely attainment. For
a Moderate area plan such as that at issue in this proposed action,
quantitative milestones are required for years 4.5 (year 2014) and 7.5
(year 2017) after the December 2009 effective date of designation. The
2016 PM2.5 SIP Requirements Rule states that the
quantitative milestones contained in the attainment plan for a Moderate
nonattainment area should be constructed such that they can be tracked,
quantified and/or measured adequately in order for a state to meet its
milestone reporting obligations, which are due 90 days after a given
milestone date. The EPA suggested possible metrics that ``support and
demonstrate how the overall quantitative milestones identified for an
area may be met, such as percent implementation of control strategies,
percent compliance with implemented control measures, and adherence to
a compliance schedule.'' This list was not exclusive or exhaustive but
reflected the EPA's view that the purpose of the quantitative milestone
requirement is to provide an objective way to determine whether the
area is making the necessary progress towards attainment by the
applicable attainment date, i.e., to verify that the separate RFP
requirement is met.
Idaho's April 25, 2017 commitment letter describes Idaho's plan for
making a SIP submission that will include QMs in the attainment plan
for the Logan, UT-ID area. This commitment presents Idaho's approach
for revising the attainment plan to include a detailed implementation
schedule, estimated
[[Page 25211]]
emissions reductions, and potential 2017 QM reporting metrics for the
control measures discussed above, including wood stove and open burning
curtailment days, wood stove change-outs, and road sanding agreements.
Idaho's proposed QMs are consistent with EPA's suggested metrics and
will provide an objective way to determine whether the area is making
necessary progress towards attainment. Therefore, the commitment letter
demonstrates that the State will, within one year of EPA's
finalization, revise the Idaho attainment plan to satisfy the QM
requirement.\8\
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\8\ Our confidence in Idaho's ability to expeditiously revise
the Idaho attainment plan to include valid QMs is bolstered by the
information the State submitted in a February 26, 2016 letter.
Specifically, the February 26, 2016 letter provides a list of all
woodstove and open burning curtailment days that have occurred in
the Idaho portion of the Logan, UT-ID area since the program was
established, along with the public outreach materials and criteria
used in forecasting curtailment days. The letter also gives a
listing of all woodstove change-outs conducted in the area to date
and quantifies the estimated emission reductions achieved through
those change-outs since 2006. Lastly, the letter details compliance
with the road sanding agreements documenting the amount of sand and
salt used by Franklin County Road and Bridge verifying that the
local agency has met its obligations since these agreements were put
in place in 2012.
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Lastly, with respect to MVEBs, Idaho calculated projected 2014
emission budgets based on the former subpart 1 attainment deadline of
December 2014. On April 25, 2017, Idaho requested that the EPA approve
the submitted 2014 MVEBs as early progress budgets.\9\ We have
concluded that the submitted budgets are consistent with making
progress toward attaining the 2006 PM2.5 NAAQS by December
31, 2015, because the budgets show reduced emissions from the motor
vehicle sector over time. Therefore, we are proposing approval of the
submitted 2014 MVEBs as early progress budgets. We are also proposing
to conditionally approve Idaho's commitment to submit MVEBs for the
2015 attainment year.
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\9\ Early progress budgets for PM2.5 areas were
discussed in the July 1, 2004 transportation conformity final rule.
(See 69 FR 40030-1.)
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II. Proposed Action
For the reasons discussed above, the EPA is proposing to approve
the attainment demonstration in the Idaho attainment plan for the Idaho
portion of the Logan UT-ID area. The EPA is also proposing to approve
the 2014 MVEBs as early progress budgets, in that they are consistent
with making progress toward attainment of the 2006 PM2.5
NAAQS by December 31, 2015. Lastly, the EPA is proposing to
conditionally approve RFP, QMs, and revised MVEBs in the Idaho
attainment plan, based on IDEQ's April 25, 2017 commitment to adopt and
submit updated plan elements to meet these requirements. Under a
conditional approval, the State must adopt and submit the specific
revisions it has committed to by a date certain but not later than
within one year of the EPA's finalization.\10\ If the EPA fully
approves the submittal of the revisions specified in the commitment
letter, the conditional nature of the approval would be removed and the
submittal would become fully approved. If the State does not submit
these revisions by a date certain within one year of final action, or
if the EPA finds the State's revisions to be incomplete, or EPA
disapproves the State's revisions, a conditional approval will convert
to a disapproval. If any of these occur and the EPA's conditional
approval converts to a disapproval, that will constitute a disapproval
of a required plan element under part D of title I of the Act, which
starts an 18-month clock for sanctions, see section 179(a)(2), and the
two-year clock for a Federal Implementation Plan (FIP), see CAA section
110(c)(1)(B).
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\10\ In IDEQ's April 25, 2017 commitment letter, IDEQ committed
to a date certain to submit revisions by August 1, 2018, which we
anticipate will be within one year of the effective date of final
action.
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III. Statutory and Executive Orders Review
Under the CAA, the Administrator is required to approve a SIP
submission that complies with the provisions of the Act and applicable
Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in
reviewing SIP submissions, the EPA's role is to approve state choices,
provided that they meet the criteria of the CAA. Accordingly, this
action merely proposes to approve state law as meeting Federal
requirements and does not impose additional requirements beyond those
imposed by state law. For that reason, this action:
Is not a ``significant regulatory action'' subject to
review by the Office of Management and Budget under Executive Orders
12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21,
2011);
Does not impose an information collection burden under the
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
Is certified as not having a significant economic impact
on a substantial number of small entities under the Regulatory
Flexibility Act (5 U.S.C. 601 et seq.);
Does not contain any unfunded mandate or significantly or
uniquely affect small governments, as described in the Unfunded
Mandates Reform Act of 1995 (Pub. L. 104-4);
Does not have Federalism implications as specified in
Executive Order 13132 (64 FR 43255, August 10, 1999);
Is not an economically significant regulatory action based
on health or safety risks subject to Executive Order 13045 (62 FR
19885, April 23, 1997);
Is not a significant regulatory action subject to
Executive Order 13211 (66 FR 28355, May 22, 2001);
Is not subject to requirements of section 12(d) of the
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272
note) because this action does not involve technical standards; and
Does not provide the 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 (59 FR 7629, February 16, 1994).
The SIP is not approved to apply on any Indian reservation land or
in any other area where the EPA or an Indian tribe has demonstrated
that a tribe has jurisdiction. In those areas of Indian country, the
rule does not have tribal implications as specified by Executive Order
13175 (65 FR 67249, November 9, 2000).
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Carbon monoxide,
Incorporation by reference, Intergovernmental relations, Lead, Nitrogen
dioxide, Ozone, Particulate matter, Reporting and recordkeeping
requirements, Sulfur oxides, Volatile organic compounds.
Dated: May 15, 2017.
Michelle L. Pirzadeh,
Acting Regional Administrator, Region 10.
[FR Doc. 2017-11226 Filed 5-31-17; 8:45 am]
BILLING CODE 6560-50-P