83_FR_46006 83 FR 45830 - Air Plan Approval; ID, Pinehurst PM10

83 FR 45830 - Air Plan Approval; ID, Pinehurst PM10

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 83, Issue 176 (September 11, 2018)

Page Range45830-45835
FR Document2018-19600

The EPA is approving the redesignation request and limited maintenance plan for the PM<INF>10</INF> National Ambient Air Quality Standard developed for the City of Pinehurst PM<INF>10</INF> Nonattainment Area and the Pinehurst PM<INF>10</INF> Expansion Nonattainment Area. This redesignation will change the status of both areas from nonattainment to attainment. The limited maintenance plan for these contiguous nonattainment areas addresses maintenance of the PM<INF>10</INF> standard for a ten-year period beyond redesignation. Related to this action, the EPA is taking final agency action on the September 15, 2013, high wind exceptional event at the Pinehurst monitoring station. Additionally, the EPA is finalizing approval of the emissions inventory for the West Silver Valley 2012 annual PM<INF>2.5</INF> nonattainment area.

Federal Register, Volume 83 Issue 176 (Tuesday, September 11, 2018)
[Federal Register Volume 83, Number 176 (Tuesday, September 11, 2018)]
[Rules and Regulations]
[Pages 45830-45835]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-19600]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[EPA-R10-OAR-2017-0582; FRL-9983-53--Region 10]


Air Plan Approval; ID, Pinehurst PM10 Redesignation, 
Limited Maintenance Plan; West Silver Valley 2012 Annual 
PM2.5 Emission Inventory

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: The EPA is approving the redesignation request and limited 
maintenance plan for the PM10 National Ambient Air Quality 
Standard developed for the City of Pinehurst PM10 
Nonattainment Area and the Pinehurst PM10 Expansion 
Nonattainment Area. This redesignation will change the status of both 
areas from nonattainment to attainment. The limited maintenance plan 
for these contiguous nonattainment areas addresses maintenance of the 
PM10 standard for a ten-year period beyond redesignation. 
Related to this action, the EPA is taking final agency action on the 
September 15, 2013, high wind exceptional event at the Pinehurst 
monitoring station. Additionally, the EPA is finalizing approval of the 
emissions inventory for the West Silver Valley 2012 annual 
PM2.5 nonattainment area.

DATES: This action is effective on October 11, 2018.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-R10-OAR-2017-0582. All documents in the docket are 
listed on the https://www.regulations.gov website. Although listed in 
the index, some information is not publicly available, e.g., 
Confidential Business Information or other information the disclosure 
of which is restricted by statute. Certain other material, such as 
copyrighted material, is not placed on the internet and will be 
publicly available only in hard copy form. Publicly available docket 
materials are available through https://www.regulations.gov, or please 
contact the person identified in the For Further Information Contact 
section for additional availability information.

FOR FURTHER INFORMATION CONTACT: Justin Spenillo at (206) 553-6125, or 
[email protected].

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, it is intended to refer to the EPA.

Table of Contents

I. Background Information
II. Response to Comments
III. Final Action
IV. Statutory and Executive Orders Review

I. Background Information

    On May 11, 2018, the EPA proposed to approve the redesignation 
request and limited maintenance plan (LMP) submitted by the Idaho 
Department of Environmental Quality (IDEQ) on September 29, 2017, for 
the City of Pinehurst PM10 Nonattainment Area and the 
Pinehurst PM10 Expansion Nonattainment Area, collectively 
referred to as the Pinehurst PM10 Nonattainment Area 
(Pinehurst PM10 NAA).
    Related to this action, the EPA is taking final agency action on 
the EPA's concurrence with the IDEQ's request for

[[Page 45831]]

exclusion of data measured on September 15, 2013, as a high wind 
exceptional event at the Pinehurst monitoring station, as set forth in 
the March 2, 2017 letter to the IDEQ, included in the docket. The Clean 
Air Act (CAA) allows for the exclusion of air quality monitoring data 
from design value calculations when there are exceedances caused by 
events, such as wildfires or high wind events, that meet the criteria 
for an exceptional event identified in the EPA's implementing 
regulations, the Exceptional Events Rule at 40 CFR 50.1, 50.14 and 
51.930. In 2013, emissions from a high wind event entrained dust and 
impacted PM10 concentrations recorded at the Pinehurst 
monitor. The EPA evaluated the IDEQ's exceptional event demonstration 
for the flagged values of the 24-hour PM10 NAAQS for 
September 15, 2013, at the monitor in Pinehurst, Idaho, with respect to 
the requirements of the EPA's Exceptional Events Rule and determined 
that IDEQ met the rule requirements.
    Separately, the EPA also proposed approval of the base year 
emissions inventory for the West Silver Valley (WSV) PM2.5 
Nonattainment Area (NAA). Section 172(c)(3) of the CAA requires a state 
with an area designated as nonattainment to submit a ``comprehensive, 
accurate, current inventory of actual emissions from all sources of the 
relevant pollutant'' for the NAA. The IDEQ developed a 2013 base year 
emissions inventory for the WSV annual PM2.5 NAA. The base 
year emissions inventory includes data from 2013 and 2014 and in large 
part was extracted from the 2014 periodic emissions inventory which is 
used to populate the EPA's National Emissions Inventory. The 2013 base 
year inventory is one of the three years used to designate the area as 
nonattainment. This base year inventory presents direct 
PM2.5 emissions (condensable and filterable) and emissions 
of all PM2.5 precursors (NOX, VOCs, 
NH3, and SO2) to meet the emissions inventory 
requirements of CAA section 172(c)(3) and 40 CFR 51.1008(a)(1). The EPA 
has reviewed the results, procedures, and methodologies for the WSV 
Annual PM2.5 NAA base year emissions inventory. The EPA 
determined that the 2013 base year emissions inventory for the WSV 
annual PM2.5 NAA met the requirements of CAA section 
172(c)(3) and 40 CFR 51.1008(a)(1).
    An explanation of the CAA requirements, a detailed analysis of the 
submittal, and the EPA's reasons for proposing approval were provided 
in the notice of proposed rulemaking (83 FR 21976), and will not be 
restated here. The public comment period for this proposed rule ended 
on June 11, 2018. The EPA received adverse comments on the proposal.

II. Response to Comments

    The Idaho Conservation League (ICL) submitted adverse comments on 
our proposed approval of the Pinehurst PM10 NAA 
redesignation request and LMP. Within this section, we have summarized 
the adverse comments and provided our responses. A full copy of 
comments received is available in the docket for this final action.

Comment--Permanent and Enforceable Emissions Reductions

    Summary--The ICL comment letter asserts the ``EPA must reject Idaho 
DEQ's request for redesignation of the Pinehurst NAA'' because the 
state has not met the redesignation requirements in CAA section 
107(d)(3)(E)(iii). The ICL cites the EPA's September 4, 1992, guidance, 
which, among other things, addresses emissions reductions based on 
permanent and enforceable measures (Memorandum from John Calcagni, 
Director, Air Quality Management Division, EPA Office of Air Quality 
Planning and Standards, entitled ``Procedures for Processing Requests 
to Redesignate Areas to Attainment'' (Calcagni Memo)). The ICL comment 
letter provides examples of nonattainment areas redesignated for 
PM10 and ozone in Ohio, Colorado, and Idaho, which use local 
rules, laws, and ordinances to provide for permanent and enforceable 
emissions reductions. The comment letter states that the IDEQ and City 
of Pinehurst were aware of the need for permanent and enforceable 
measures, citing discussion notes taken during a 2016 advisory 
committee session for the West Silver Valley PM2.5 NAA, an 
overlapping area designated nonattainment for the 2012 annual 
PM2.5 NAAQS. The ICL comment letter concludes that the 
control measures and associated emissions reductions are not permanent 
nor enforceable.
    Response--We disagree with the commenter. Measures to attain the 
24-hour PM10 NAAQS were submitted by IDEQ on April 14, 1992, 
and approved into the SIP on August 25, 1994 (59 FR 43745). In the 
August 25, 1994 action, the EPA evaluated the IDEQ's submittal with 
respect to the CAA section 172 requirements, including the Reasonably 
Available Control Measures and their enforceability. The EPA approved 
the control measures into the SIP at 40 CFR part 52, subpart N as 
meeting CAA requirements and making them, along with the attainment 
plan itself, federally enforceable (59 FR 43745). Once approved, the 
state is subject to CAA section 179(a)(4), which provides that a state 
can be subject to federal sanctions for not implementing any 
requirement of an approved plan or part of an approved plan, unless the 
deficiency is corrected within 18 months.
    Reviewing the specific plan measures, the IDEQ has implemented 
woodstove replacements and home weatherization since the early 1990s in 
the Pinehurst PM10 NAA. As identified in Table 9 of the IDEQ 
submittal, the woodstove changeout program resulted in 76 uncertified 
woodstoves being replaced by 1994, with an additional 87 between 1995 
and 2014 and 40 more between 2015 and 2017. These measures have been 
implemented through a variety of programs and agencies. Changeouts of 
uncertified woodstoves were completed through a combined Federal 
assistance grant and state and local loan program. This combined 
program was administered by the Northern Idaho Community Action Agency. 
The home weatherization program was run through the Idaho Economic 
Opportunity Office with loan and grant funding supplied by the Idaho 
Department of Water Resources, Farmers Home Administration, Washington 
Water Power, and North Idaho Community Action Agency. In terms of 
emissions reductions, when comparing the emissions inventories from 
residential wood combustion from 1988 to 2013, they dropped 80.25 lb/
day (27.45%) during the winter season when particulate matter emissions 
are often the highest (Table 8 of the IDEQ submittal). These reductions 
are permanent in that both the woodstove replacement and the reduced 
energy needs from improved home energy efficiency via weatherization 
generally last and extend throughout the life of the home.\1\ Any 
subsequent home modification would likely improve, if not maintain, 
emissions reductions, and benefits are expected to be net positive 
given that emissions of EPA-certified stoves are estimated to be on 
average three to four times lower than uncertified stoves.\2\ The 
remaining measures, including the public awareness campaign focused on 
clean burning practices and the voluntary woodsmoke curtailment 
programs are all helpful in supporting the reduction of woodsmoke 
emissions in the area.
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    \1\ See Department of Energy Weatherization Program, https://www.energy.gov/sites/prod/files/2018/06/f52/EERE_WAP_Fact%20Sheet-v2.pdf.
    \2\ See EPA Burnwise Program, https://www.epa.gov/burnwise/burn-wise-energy-efficiency.
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    Additionally, the EPA recently awarded IDEQ a 2015 Targeted Airshed

[[Page 45832]]

Grant for the West Silver Valley PM2.5 NAA. As a condition 
of the grant agreement with the EPA, the IDEQ committed to replace 183 
uncertified wood heating devices and provide the associated emissions 
reductions. Each homeowner receiving a changeout must sign a 
certification document to ensure that they will remove an uncertified 
wood heating device from their home and agree to have two follow-up 
home inspections on the new certified device, commit to proper wood 
burning practices, and commit to not replacing the device with another 
solid fuel burning device. All removed stoves are rendered permanently 
and irreversibly inoperable and are properly disposed. We believe the 
grant terms and conditions and the homeowner certifications provide 
additional enforceability for purposes of maintaining the 
PM10 standard in the area.
    While not specifically taken credit for in the original attainment 
plan nor the LMP, road dust control has played an important part in the 
area. It is the second largest source of pollution according to the 
emissions inventory, and the area has taken measures to reduce 
emissions through paving roads, maintenance of roads, and adjusting 
street sweeping to reduce particulate matter. With respect to 
permanence of road controls, once paved their associated emissions will 
be reduced and road maintenance will ensure lasting emissions 
reductions. We received clarification from the IDEQ that since 2016, 
the majority of roads (over 10 miles in a city roughly 1 square mile) 
in the Pinehurst area have been rebuilt or sealed.
    We have reviewed monitoring data for the area with respect to the 
permanence of the emissions reductions. In Table 2 of the IDEQ 
submittal, monitoring data is provided from 1986 through 2015. From 
1986 through 1993, the Pinehurst PM10 NAA was regularly 
recording values above 100 [micro]g/m\3\, and exceeded the 3-year 
expected exceedances design value of 1.0. From 1994 through 2015, Table 
2 shows that the area has consistently met the 24-hour PM10 
standard, and the EPA has reviewed and confirmed the data. As noted in 
the submittal, the area came into attainment in the same timeframe as 
the IDEQ's completion of the first batch of woodstove changeouts (76 by 
1994). The area has continued to meet the 24-hour PM10 NAAQS 
design value since 1994, and it has also shown a continued decrease in 
maximum annual 24-hr PM10 concentrations. Additionally, the 
EPA has determined that the Pinehurst PM10 NAA meets the 5-
year average design value for LMP qualification as identified in the 
proposal.
    Since the proposal, the IDEQ has submitted and the EPA has reviewed 
and concurred on the IDEQ's demonstration that elevated PM10 
concentrations on three days in September 2017 were attributable to 
wildfire exceptional events and qualify for exclusion under EPA's 
Exceptional Events Rule. The August 24, 2018 concurrence letter to the 
IDEQ is included in the docket. With the exceptional event days 
excluded, the area continues to meet the LMP average design value for 
the most recent 5-year period, through 2017. The EPA intends to propose 
final agency action on these 2017 exceptional events in a forthcoming 
action.
    Based on the IDEQ PM10 LMP submission and the EPA's 
review of air quality monitoring data, it is reasonable to conclude 
that the measures to reduce PM10 in the Pinehurst 
PM10 NAA have contributed to permanent emissions reductions. 
Emissions reductions in the area have been maintained since 1994, and 
enforceable control measures remain in place as approved into the SIP. 
We therefore conclude that the area has met its obligations with regard 
to permanent and enforceable measures to maintain the 24-hour 
PM10 standard and that no further action is required.

Comment--Annual PM10 NAAQS

    Summary--The ICL requests that the EPA explain why the LMP and the 
EPA's subsequent analysis only evaluated the 24-hour PM10 
LMP design value and not the annual PM10 LMP design value. 
The commenter asserts that both are required.
    Response--On August 9, 2001, the EPA issued guidance on streamlined 
maintenance plan provisions for certain moderate PM10 
nonattainment areas seeking redesignation to attainment (Memorandum 
from Lydia Wegman, Director, Air Quality Standards and Strategies 
Division, entitled ``Limited Maintenance Plan Option for Moderate 
PM10 Nonattainment Areas'' (LMP Option Memo)). Section IV of 
the LMP Option Memo discusses LMP qualification and qualifying design 
values specifically. It states that ``[t]he area should be attaining 
the NAAQS and the average PM10 design value for the area, 
based on the most recent 5 years of air quality data at all monitors in 
the area, should be at or below 40 [mu]g/m\3\ for the annual 
PM10 NAAQS and 98 [mu]g/m\3\ for the 24-hr PM10 
NAAQS with no violations at any monitor in the nonattainment area.''
    To qualify for the LMP option, the area must meet the design value 
test with respect to the standard for which the area was designated 
nonattainment.\3\ The Pinehurst PM10 NAA was designated 
nonattainment for the 24-hr PM10 NAAQS and therefore the 
appropriate statistical test is with respect to the 98 [micro]g/m\3\ 5-
year average design value. The EPA has confirmed that the area meets 
the 5-year average design value of 98 [micro]g/m\3\. We believe that 
the IDEQ has met the requirements of the LMP with regards to the 24-hr 
PM10 standard and the IDEQ does not need to address the 
annual PM10 standard.
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    \3\ See LMP Option Memo.
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Comment--Federal Clean Air Deregulation

    Summary--The ICL states that they are concerned about recent 
actions and statements by federal agencies that may affect vehicle 
emissions reductions in the future, and how that may affect the 
Pinehurst PM10 NAA ability to attain and its permanence. The 
ICL comment letter specifically points to the IDEQ's reference to Tier 
3 vehicle standards and the EPA's proposal to reduce Corporate Average 
Fuel Economy (CAFE) standards. The comment then requests that the EPA 
``identify any and all of its models and analyses that may be impacted 
by current and proposed deregulation of vehicle emissions. Furthermore, 
we request that any vehicle emission model or emission factor for 
PM10 be revised such that the models and factors are not 
based on any federal emission regulation currently under judicial or 
administrative review.''
    Response--We do not agree with the commenter's assertion regarding 
the impact of current or proposed changes to motor vehicle emissions 
standards on the proposed action, because the Pinehurst PM10 
NAA does not rely on motor vehicle emissions reductions for attainment 
or its continued maintenance of the NAAQS. Additionally, there are no 
proposed changes to Tier 3 vehicle standards and proposed CAFE 
standards have minimal effect on criteria pollutants, their focus 
instead being on greenhouse gas emissions reductions.
    When reviewing the submitted Pinehurst PM10 2013 
Emissions Inventory in Table 7 of the IDEQ's submittal, the primary 
source of PM10 is residential wood combustion at 17.75 tons 
per year (TPY), which is 44.5% of the PM10 emissions in the 
area. Road dust, paved and unpaved, is the next largest contributor at 
a cumulative 8.91 TPY, or 22.3% of emissions. Cumulatively, residential 
wood combustion and road dust make up

[[Page 45833]]

66.8% of the emissions inventory. During winter days when particulate 
matter levels are often higher, residential wood combustion is 212.05 
lb/day, which is 82.17% of the PM10 emissions in the area 
(Table 8). Paved road dust (unpaved is no longer part of the emissions 
inventory), is the next largest contributor at a 25.38 lb/day, or 9.83% 
of emissions. Residential wood combustion currently makes up the 
majority of the emissions inventory. Motor vehicle emissions by 
comparison make up a very small portion of the emissions inventory at 
1.84 TPY(annual) and 11.09 lb/day(winter), or less than 5% of both the 
annual and winter emissions inventories. This is expected as motor 
vehicle emissions do not contribute large quantities of 
PM10.
    As described in section 3.4 Control Measures and section 3.2.2 
Emissions Inventory Results and Adequacy Determination, the Pinehurst 
PM10 LMP focuses primarily on the reduction of 
PM10 emissions from residential woodsmoke and from road dust 
from paved and unpaved roads. The Pinehurst PM10 LMP itself 
does not take credit for emissions reductions from motor vehicle 
emissions reductions nor does it rely on it for continued attainment of 
the PM10 NAAQS.
    As mentioned in the proposal, the Pinehurst area has met the 
PM10 3-year design value of expected exceedance of 1.0 or 
less since 1994. Additionally, the Pinehurst area has only recorded one 
value (in 2010) above 98 [micro]g/m\3\ since 1999 that was not the 
result of an exceptional event. The area has demonstrated, and EPA has 
confirmed, that the 3-yr and 5-yr design values qualify for the LMP 
option. Additionally, the area has demonstrated that it meets the LMP 
motor vehicle regional analysis, which assesses increases in emissions 
based on the area's growth rate as applied to paved road dust 
emissions, unpaved road dust emissions, and mobile source emissions. It 
is this last category where the ICL comment questions if any changes in 
federal emissions requirements would affect the area's ability to 
attain. As explained above, motor vehicle emissions in the Pinehurst 
NAA are not expected to affect the areas ability to continue to attain 
as they are less than 5% and were not taken credit for in the 
attainment plan, nor the redesignation request and LMP.
    While we do not believe that any changes to motor vehicle emissions 
are relevant to the area's ability to attain, we did a basic evaluation 
to determine if the area would continue to meet the LMP motor vehicle 
regional analysis. The only portion of the calculation that would 
change would be the on-road mobile source. Currently, that value is 
calculated using the formula in the LMP Option Memo: DV mobile * VMT 
paved, where the DV mobile provides a 3.6509 [mu]g/m\3\ contribution to 
the design value and VMT paved is the 0.0166 percent growth rate 
(3.6509 * 0.0166 = 0.06 [mu]g/m\3\ contribution). Given that the growth 
rate in Pinehurst is very small, any potential changes to the emissions 
standards would have a small effect on the design value. Taking a 
conservative assumption and doubling the DV mobile from 3.6509 [mu]g/
m\3\ to 7.3018 [mu]g/m\3\, and applying the 0.0166 growth rate would 
only increase the mobile contribution from 0.06 [micro]g/m\3\ 
contribution to 0.12 [micro]g/m\3\ contribution and the Pinehurst area 
would still be able meet the motor vehicle regional analysis test. 
Given the small contribution of motor vehicle emissions and low growth 
rate in the Pinehurst area, we believe the Pinehurst PM10 
NAA LMP is sufficient and no further action is required.
    The ICL's request that the EPA identify and revise all of its 
models, analyses, and emissions factors that may be impacted by current 
or proposed changes to vehicle emissions standards is outside of the 
scope of this action.

Comment--Emission Factors

    Summary--The ICL requested that the EPA confirm that all woodstoves 
replaced were ``Phase II,'' and to require that the IDEQ revise 
calculations in the case that any of the replacements were not Phase 
II. The ICL asserts that the IDEQ used incorrect emissions factors 
based on a comparison of AP-42 emissions factors to those used by IDEQ 
in the Pinehurst PM10 LMP, and requests an explanation for 
this or revision, whichever is more appropriate.
    Response--We disagree that the IDEQ used incorrect emissions 
factors and do not believe that any further calculations are needed. In 
1988, the EPA finalized the residential wood heaters new source 
performance standards (NSPS) that required performance standards for 
woodstoves. These performance standards were released in two phases; 
Phase I went into effect immediately in 1988, and Phase II went into 
effect in 1990. The Phase II performance standards required that 
catalytic stoves have an emission rate of 4.1g/hr or less and non-
catalytic stoves have an emissions rate of 7.5 g/hr or less. All stoves 
that have been replaced in Pinehurst occurred after Phase II standards 
were in place. Additionally, we have received confirmation from IDEQ 
that these changeouts were completed and that they were Phase II EPA 
certified stoves.
    With regard to the ICL's request for explanation of the emissions 
factors used, we reviewed the emissions factors (EFs) for residential 
wood combustion that IDEQ used and found them consistent with the EPA 
EFs and methodology used in the 2014 National Emissions Inventory. The 
IDEQ used EFs derived from EPA's Residential Wood Combustion Emissions 
Estimation Tool version 3.1 (October 2016) that are more up to date 
than the EFs in AP-42, which were last updated in 1996 for this source 
category. We have included in the docket the documentation for v3.1 and 
3.2 of the Residential Wood Combustion Emissions Estimation Tool, which 
has the emissions factors used and the references for those EFs. Both 
versions of the tool use the same EFs.
    In response to the comment, we have confirmed with the IDEQ that 
the changeouts were with phase II or better EPA certified stoves. We 
have also confirmed that the IDEQ emissions inventory assumptions and 
calculations are correct and that the appropriate EFs were used.

Comment--Contingency Plan

    Summary--The ICL requested that the EPA further explain how the 
IDEQ's Contingency Plan is compliant with section 175A of the CAA. The 
comment provides a summary with references to CAA section 175A, the 
Calcagni Memo that provides guidance for maintenance plans, and the LMP 
Option Memo that provides guidance for LMPs.
    Response--While the commenter correctly identifies that CAA section 
175A provides the statutory requirements for maintenance plan 
requirements, and that the LMP Option Memo provides guidance for 
contingency provisions under the LMP option, the ICL's contention that 
contingency provisions \4\ must be fully adopted and take effect within 
one year and without further legislative action is incorrect. These 
requirements do not appear in the CAA section 175A requirements nor the 
LMP Option Memo, and are contradicted by the Calcagni Memo, EPA's long-
standing interpretation of redesignation and maintenance plan 
requirements. There, it states, ``For the purposes of section 175A, a 
State is not required to have fully adopted contingency measures that 
will take effect without further action by the State in order for the 
maintenance

[[Page 45834]]

plan to be approved.'' Calcagni Memo at 12; see also Greenbaum v. EPA, 
370 F.3d 527, 541 (6th Cir. 2004) (upholding this portion of the 
Calcagni Memo).
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    \4\ The IDEQ submittal and ICL comment letter use the 
terminology ``contingency measures,'' when referring to the CAA 
section 175A ``contingency provisions'' requirements. ``Contingency 
measures'' are associated with attainment planning and have 
different requirements.
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    CAA section 175A(d) and EPA's interpretation of that provision as 
set out in the Calcagni Memo and the LMP Option Memo provide the 
standards by which the EPA must evaluate contingency plans. Section 
175A(d) states that ``[e]ach plan revision submitted under this section 
shall contain such contingency provisions as the Administrator deems 
necessary to assure that the State will promptly correct any violation 
of the standard which occurs after the redesignation of the area as an 
attainment area. Such provisions shall include a requirement that the 
State will implement all measures with respect to the control of the 
air pollutant concerned which were contained in the State 
implementation plan for the area before redesignation of the area as an 
attainment area.'' The Calcagni Memo and the LMP Option memo further 
elaborate that ``Section 175A of the Act states that a maintenance plan 
must include contingency provisions, as necessary, to promptly correct 
any violation of the NAAQS which may occur after redesignation of the 
area to attainment. These contingency measures do not have to be fully 
adopted at the time of redesignation. However, the contingency plan is 
considered to be an enforceable part of the SIP and the State should 
ensure that the contingency measures are adopted as soon as possible 
once they are triggered by a specific event. The contingency plan 
should identify the measures to be adopted, and provide a schedule and 
procedure for adoption and implementation of the measures if they are 
required. Normally, the implementation of contingency measures is 
triggered by a violation of the NAAQS but the State may wish to 
establish other triggers to prevent a violation of the NAAQS, such as 
an exceedance of the NAAQS.''
    The EPA has determined that the IDEQ's contingency plan meets the 
requirements of Section 175A(d) and the EPA's guidance memos. Section 
3.5 of the IDEQ's submittal confirms that all measures relied upon for 
attainment, including woodstove changeouts, voluntary curtailment 
program, home weatherization, and public awareness campaign continue to 
be in place and will be strengthened if the PM10 standard is 
exceeded. If the Pinehurst area exceeds the standard, Section 3.5.1 
identifies the Annual Network Plan monitoring data as the triggering 
mechanism for contingency provisions. A violation cited in the Annual 
Network Plan would trigger a schedule and process for IDEQ to examine 
the data, assess the source of the problem, and identify which 
contingency provision to adopt and implement. The submitted plan lists 
potential provisions focused on control of woodsmoke and road dust, the 
two primary sources of PM10 in the nonattainment area. The 
submitted contingency provisions meet the CAA section 175A requirement 
to continue implementing measures relied upon for attainment. There is 
an automatic process on a set schedule by which the Pinehurst area's 
design value is evaluated annually (i.e., the Annual Network Plan 
submittal-review-approval), and a violation would trigger the state to 
be required to evaluate, identify, adopt, and implement contingency 
provisions best suited towards bringing the area back into attainment. 
Therefore, the EPA is finalizing approval of the IDEQ's plan as meeting 
the requirements of section 175A.

III. Final Action

    The EPA is approving the Pinehurst PM10 NAA LMP 
submitted by the IDEQ and concurrently redesignating the area to 
attainment for the PM10 NAAQS. Related to this action, the 
EPA is taking final agency action on the September 15, 2013, high wind 
exceptional event at the Pinehurst monitoring station. Additionally, 
the EPA is approving the West Silver Valley annual PM2.5 
base year emissions inventory as meeting CAA section 172(c)(3) 
requirements.

IV. 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 approves 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);
     is not an Executive Order 13771 (82 FR 9339, February 2, 
2017) regulatory action because SIP approvals are exempted under 
Executive Order 12866;
     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 application of those requirements would be inconsistent 
with the Clean Air Act; 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 and it will not impose 
substantial direct costs on tribal governments or preempt tribal law as 
specified by Executive Order 13175 (65 FR 67249, November 9, 2000).
    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. The EPA will submit a report containing this action and 
other required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. A major rule cannot 
take effect until 60 days after it is published in the Federal 
Register. This action is not a

[[Page 45835]]

``major rule'' as defined by 5 U.S.C. 804(2).
    Under section 307(b)(1) of the CAA, petitions for judicial review 
of this action must be filed in the United States Court of Appeals for 
the appropriate circuit by November 13, 2018. Filing a petition for 
reconsideration by the Administrator of this final rule does not affect 
the finality of this action for the purposes of judicial review nor 
does it extend the time within which a petition for judicial review may 
be filed, and shall not postpone the effectiveness of such rule or 
action. This action may not be challenged later in proceedings to 
enforce its requirements. (See section 307(b)(2)).

List of Subjects

40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Nitrogen dioxide, Particulate 
matter, Reporting and recordkeeping requirements, Sulfur dioxide.

40 CFR Part 81

    Environmental protection, Air pollution control, National parks, 
Wilderness areas.

    Authority: 42 U.S.C. 7401 et seq.

    Dated: August 30, 2018.
Michelle L. Pirzadeh,
Acting Regional Administrator, Region 10.

    For the reasons set forth in the preamble, 40 CFR parts 52 and 81 
are amended as follows:

PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS

0
1. The authority citation for part 52 continues to read as follows:

    Authority:  42 U.S.C. 7401 et seq.

Subpart N--Idaho

0
2. In Sec.  52.670, the table in paragraph (e) is amended by adding an 
entry at the end of the table for ``Pinehurst PM10 Limited 
Maintenance Plan'' to read as follows:


Sec.  52.670  Identification of plan.

* * * * *
    (e) * * *

                    EPA-Approved Idaho Nonregulatory Provisions and Quasi-Regulatory Measures
----------------------------------------------------------------------------------------------------------------
                                       Applicable
      Name of SIP provision          geographic or          State       EPA approval date         Comments
                                   nonattainment area  submittal date
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
Pinehurst PM10 Limited            Shoshone County;          9/29/2017  9/11/2018,........  .....................
 Maintenance Plan.                 Pinehurst                           [Insert Federal
                                   Expansion Area and                   Register
                                   City of Pinehurst.                   citation].
----------------------------------------------------------------------------------------------------------------

PART 81--DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES

0
3. The authority citation for part 81 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.


0
4. In Sec.  81.313, the table entitled ``Idaho-PM-10'' is amended by 
revising the entry for ``Eastern Washington-Northern Idaho Interstate 
AQCR 62 (Idaho portion):'' to read as follows:


Sec.  81.313  Idaho.

* * * * *

                                                                       Idaho PM-10
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                             Designation                                             Classification
           Designated area           -------------------------------------------------------------------------------------------------------------------
                                                  Date                         Type                         Date                         Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
 
                                                                      * * * * * * *
Eastern Washington-Northern Idaho
 Interstate AQCR 62 (Idaho portion):
    Shoshone County: Pinehurst        October 11, 2018...........  Attainment.................  ...........................  ...........................
     Expansion Area Northwest
     quarter of the Northwest
     quarter, Section 8, Township 48
     North, Range 2 East; Southwest
     quarter of the Northwest
     quarter, Section 8, Township
     48, North, Range 2 East;
     Northwest quarter of the
     Southwest quarter, Section 8,
     Township 48 North, Range 2
     East; Southwest quarter,
     Section 8, Township 48 North,
     Range 2 East; Southwest quarter
     of the Southwest quarter,
     Section 48 North, Range 2 East,
     Boise Base (known as
     ``Pinehurst expansion area'').
    City of Pinehurst...............  October 11, 2018...........  Attainment.................  ...........................  ...........................
 
                                                                      * * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * *
[FR Doc. 2018-19600 Filed 9-10-18; 8:45 am]
 BILLING CODE 6560-50-P



                                             45830            Federal Register / Vol. 83, No. 176 / Tuesday, September 11, 2018 / Rules and Regulations

                                             *      *    *     *     *                               Infrastructure Requirements for the 2008              ‘‘110(a)(1) and (2) Infrastructure
                                             ■  3. Section 52.1770(e), is amended by                 Lead NAAQS’’, ‘‘110(a)(1) and (2)                     Requirements for the 2012 Annual PM2.5
                                             adding entries for ‘‘110(a)(1) and (2)                  Infrastructure Requirements for the 2008              NAAQS’’ at the end of the table to read
                                             Infrastructure Requirements for 1997                    8-Hour Ozone NAAQS’’, ‘‘110(a)(1) and                 as follows:
                                             Fine Particulate Matter NAAQS’’,                        (2) Infrastructure Requirements for the
                                                                                                                                                           § 52.1770    Identification of plan.
                                             ‘‘110(a)(1) and (2) Infrastructure                      2010 1-hour NO2 NAAQS’’, ‘‘110(a)(1)
                                             Requirements for 2006 Fine Particulate                  and (2) Infrastructure Requirements for               *        *    *     *     *
                                             Matter NAAQS’’, ‘‘110(a)(1) and (2)                     the 2010 1-hour SO2 NAAQS’’, and                           (e) * * *

                                                                                   EPA-APPROVED NORTH CAROLINA NON-REGULATORY PROVISIONS
                                                                                                 State effective   EPA approval        Federal Register ci-
                                                                Provision                                                                                                       Explanation
                                                                                                      date            date                   tation


                                                      *                    *                           *                      *                        *                    *                    *
                                             110(a)(1) and (2) Infrastructure Require-                 4/1/2008          9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for 1997 Fine Particulate Matter                                                     publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                               NAAQS.                                                                                     eral Register].          3) and 110(a)(2)(J).
                                             110(a)(1) and (2) Infrastructure Require-               9/21/2009           9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for 2006 Fine Particulate Matter                                                     publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                               NAAQS.                                                                                     eral Register].          3) and 110(a)(2)(J).
                                             110(a)(1) and (2) Infrastructure Require-               6/15/2012           9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for the 2008 Lead NAAQS.                                                             publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                                                                                                                          eral Register].          3) and 110(a)(2)(J).
                                             110(a)(1) and (2) Infrastructure Require-               11/2/2012           9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for the 2008 8-Hour Ozone                                                            publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                               NAAQS.                                                                                     eral Register].          3) and 110(a)(2)(J).
                                             110(a)(1) and (2) Infrastructure Require-               8/23/2013           9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for the 2010 1-hour NO2 NAAQS.                                                       publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                                                                                                                          eral Register].          3) and 110(a)(2)(J).
                                             110(a)(1) and (2) Infrastructure Require-               3/18/2014           9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for the 2010 1-hour SO2 NAAQS.                                                       publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                                                                                                                          eral Register].          3) and 110(a)(2)(J).
                                             110(a)(1) and (2) Infrastructure Require-               12/4/2015           9/11/2018     [Insert citation of       Approved the PSD elements of sections
                                               ments for the 2012 Annual PM2.5                                                            publication in Fed-      110(a)(2)(C), 110(a)(2)(D)(i)(II) (prong
                                               NAAQS.                                                                                     eral Register].          3) and 110(a)(2)(J).



                                             [FR Doc. 2018–19603 Filed 9–10–18; 8:45 am]             addresses maintenance of the PM10                     INFORMATION CONTACT         section for
                                             BILLING CODE 6560–50–P                                  standard for a ten-year period beyond                 additional availability information.
                                                                                                     redesignation. Related to this action, the            FOR FURTHER INFORMATION CONTACT:
                                                                                                     EPA is taking final agency action on the              Justin Spenillo at (206) 553–6125, or
                                             ENVIRONMENTAL PROTECTION                                September 15, 2013, high wind                         spenillo.justin@epa.gov.
                                             AGENCY                                                  exceptional event at the Pinehurst                    SUPPLEMENTARY INFORMATION:
                                                                                                     monitoring station. Additionally, the                 Throughout this document whenever
                                             40 CFR Parts 52 and 81                                  EPA is finalizing approval of the                     ‘‘we,’’ ‘‘us,’’ or ‘‘our’’ is used, it is
                                                                                                     emissions inventory for the West Silver               intended to refer to the EPA.
                                             [EPA–R10–OAR–2017–0582; FRL–9983–
                                                                                                     Valley 2012 annual PM2.5
                                             53—Region 10]                                                                                                 Table of Contents
                                                                                                     nonattainment area.
                                             Air Plan Approval; ID, Pinehurst PM10                   DATES:This action is effective on                     I. Background Information
                                             Redesignation, Limited Maintenance                      October 11, 2018.                                     II. Response to Comments
                                             Plan; West Silver Valley 2012 Annual                                                                          III. Final Action
                                                                                                     ADDRESSES:   The EPA has established a                IV. Statutory and Executive Orders Review
                                             PM2.5 Emission Inventory
                                                                                                     docket for this action under Docket ID
                                             AGENCY:  Environmental Protection                       No. EPA–R10–OAR–2017–0582. All                        I. Background Information
                                             Agency (EPA).                                           documents in the docket are listed on                   On May 11, 2018, the EPA proposed
                                             ACTION: Final rule.                                     the https://www.regulations.gov                       to approve the redesignation request
                                                                                                     website. Although listed in the index,                and limited maintenance plan (LMP)
                                             SUMMARY:  The EPA is approving the                      some information is not publicly                      submitted by the Idaho Department of
                                             redesignation request and limited                       available, e.g., Confidential Business                Environmental Quality (IDEQ) on
                                             maintenance plan for the PM10 National                  Information or other information the                  September 29, 2017, for the City of
                                             Ambient Air Quality Standard                            disclosure of which is restricted by                  Pinehurst PM10 Nonattainment Area and
                                             developed for the City of Pinehurst                     statute. Certain other material, such as              the Pinehurst PM10 Expansion
                                             PM10 Nonattainment Area and the                         copyrighted material, is not placed on                Nonattainment Area, collectively
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                                             Pinehurst PM10 Expansion                                the internet and will be publicly                     referred to as the Pinehurst PM10
                                             Nonattainment Area. This redesignation                  available only in hard copy form.                     Nonattainment Area (Pinehurst PM10
                                             will change the status of both areas from               Publicly available docket materials are               NAA).
                                             nonattainment to attainment. The                        available through https://                              Related to this action, the EPA is
                                             limited maintenance plan for these                      www.regulations.gov, or please contact                taking final agency action on the EPA’s
                                             contiguous nonattainment areas                          the person identified in the FOR FURTHER              concurrence with the IDEQ’s request for


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                                                              Federal Register / Vol. 83, No. 176 / Tuesday, September 11, 2018 / Rules and Regulations                                            45831

                                             exclusion of data measured on                           The public comment period for this                    approved, the state is subject to CAA
                                             September 15, 2013, as a high wind                      proposed rule ended on June 11, 2018.                 section 179(a)(4), which provides that a
                                             exceptional event at the Pinehurst                      The EPA received adverse comments on                  state can be subject to federal sanctions
                                             monitoring station, as set forth in the                 the proposal.                                         for not implementing any requirement
                                             March 2, 2017 letter to the IDEQ,                                                                             of an approved plan or part of an
                                                                                                     II. Response to Comments
                                             included in the docket. The Clean Air                                                                         approved plan, unless the deficiency is
                                             Act (CAA) allows for the exclusion of                      The Idaho Conservation League (ICL)                corrected within 18 months.
                                             air quality monitoring data from design                 submitted adverse comments on our                        Reviewing the specific plan measures,
                                             value calculations when there are                       proposed approval of the Pinehurst                    the IDEQ has implemented woodstove
                                             exceedances caused by events, such as                   PM10 NAA redesignation request and                    replacements and home weatherization
                                             wildfires or high wind events, that meet                LMP. Within this section, we have                     since the early 1990s in the Pinehurst
                                             the criteria for an exceptional event                   summarized the adverse comments and                   PM10 NAA. As identified in Table 9 of
                                             identified in the EPA’s implementing                    provided our responses. A full copy of                the IDEQ submittal, the woodstove
                                             regulations, the Exceptional Events Rule                comments received is available in the                 changeout program resulted in 76
                                             at 40 CFR 50.1, 50.14 and 51.930. In                    docket for this final action.                         uncertified woodstoves being replaced
                                             2013, emissions from a high wind event                  Comment—Permanent and Enforceable                     by 1994, with an additional 87 between
                                             entrained dust and impacted PM10                        Emissions Reductions                                  1995 and 2014 and 40 more between
                                             concentrations recorded at the Pinehurst                                                                      2015 and 2017. These measures have
                                             monitor. The EPA evaluated the IDEQ’s                      Summary—The ICL comment letter
                                                                                                                                                           been implemented through a variety of
                                             exceptional event demonstration for the                 asserts the ‘‘EPA must reject Idaho
                                                                                                                                                           programs and agencies. Changeouts of
                                             flagged values of the 24-hour PM10                      DEQ’s request for redesignation of the
                                                                                                                                                           uncertified woodstoves were completed
                                             NAAQS for September 15, 2013, at the                    Pinehurst NAA’’ because the state has
                                                                                                     not met the redesignation requirements                through a combined Federal assistance
                                             monitor in Pinehurst, Idaho, with                                                                             grant and state and local loan program.
                                             respect to the requirements of the EPA’s                in CAA section 107(d)(3)(E)(iii). The ICL
                                                                                                     cites the EPA’s September 4, 1992,                    This combined program was
                                             Exceptional Events Rule and                                                                                   administered by the Northern Idaho
                                             determined that IDEQ met the rule                       guidance, which, among other things,
                                                                                                     addresses emissions reductions based                  Community Action Agency. The home
                                             requirements.                                                                                                 weatherization program was run
                                                Separately, the EPA also proposed                    on permanent and enforceable measures
                                                                                                     (Memorandum from John Calcagni,                       through the Idaho Economic
                                             approval of the base year emissions                                                                           Opportunity Office with loan and grant
                                             inventory for the West Silver Valley                    Director, Air Quality Management
                                                                                                     Division, EPA Office of Air Quality                   funding supplied by the Idaho
                                             (WSV) PM2.5 Nonattainment Area                                                                                Department of Water Resources,
                                             (NAA). Section 172(c)(3) of the CAA                     Planning and Standards, entitled
                                                                                                     ‘‘Procedures for Processing Requests to               Farmers Home Administration,
                                             requires a state with an area designated                                                                      Washington Water Power, and North
                                             as nonattainment to submit a                            Redesignate Areas to Attainment’’
                                                                                                     (Calcagni Memo)). The ICL comment                     Idaho Community Action Agency. In
                                             ‘‘comprehensive, accurate, current                                                                            terms of emissions reductions, when
                                             inventory of actual emissions from all                  letter provides examples of
                                                                                                     nonattainment areas redesignated for                  comparing the emissions inventories
                                             sources of the relevant pollutant’’ for the                                                                   from residential wood combustion from
                                             NAA. The IDEQ developed a 2013 base                     PM10 and ozone in Ohio, Colorado, and
                                                                                                     Idaho, which use local rules, laws, and               1988 to 2013, they dropped 80.25 lb/day
                                             year emissions inventory for the WSV                                                                          (27.45%) during the winter season when
                                             annual PM2.5 NAA. The base year                         ordinances to provide for permanent
                                                                                                     and enforceable emissions reductions.                 particulate matter emissions are often
                                             emissions inventory includes data from
                                                                                                     The comment letter states that the IDEQ               the highest (Table 8 of the IDEQ
                                             2013 and 2014 and in large part was
                                                                                                     and City of Pinehurst were aware of the               submittal). These reductions are
                                             extracted from the 2014 periodic
                                                                                                     need for permanent and enforceable                    permanent in that both the woodstove
                                             emissions inventory which is used to
                                                                                                     measures, citing discussion notes taken               replacement and the reduced energy
                                             populate the EPA’s National Emissions
                                                                                                     during a 2016 advisory committee                      needs from improved home energy
                                             Inventory. The 2013 base year inventory
                                                                                                     session for the West Silver Valley PM2.5              efficiency via weatherization generally
                                             is one of the three years used to
                                                                                                     NAA, an overlapping area designated                   last and extend throughout the life of
                                             designate the area as nonattainment.
                                                                                                     nonattainment for the 2012 annual                     the home.1 Any subsequent home
                                             This base year inventory presents direct
                                             PM2.5 emissions (condensable and                        PM2.5 NAAQS. The ICL comment letter                   modification would likely improve, if
                                             filterable) and emissions of all PM2.5                  concludes that the control measures and               not maintain, emissions reductions, and
                                             precursors (NOX, VOCs, NH3, and SO2)                    associated emissions reductions are not               benefits are expected to be net positive
                                             to meet the emissions inventory                         permanent nor enforceable.                            given that emissions of EPA-certified
                                             requirements of CAA section 172(c)(3)                      Response—We disagree with the                      stoves are estimated to be on average
                                             and 40 CFR 51.1008(a)(1). The EPA has                   commenter. Measures to attain the 24-                 three to four times lower than
                                             reviewed the results, procedures, and                   hour PM10 NAAQS were submitted by                     uncertified stoves.2 The remaining
                                             methodologies for the WSV Annual                        IDEQ on April 14, 1992, and approved                  measures, including the public
                                             PM2.5 NAA base year emissions                           into the SIP on August 25, 1994 (59 FR                awareness campaign focused on clean
                                             inventory. The EPA determined that the                  43745). In the August 25, 1994 action,                burning practices and the voluntary
                                             2013 base year emissions inventory for                  the EPA evaluated the IDEQ’s submittal                woodsmoke curtailment programs are
                                             the WSV annual PM2.5 NAA met the                        with respect to the CAA section 172                   all helpful in supporting the reduction
                                             requirements of CAA section 172(c)(3)                   requirements, including the Reasonably                of woodsmoke emissions in the area.
                                                                                                     Available Control Measures and their                     Additionally, the EPA recently
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                                             and 40 CFR 51.1008(a)(1).
                                                An explanation of the CAA                            enforceability. The EPA approved the                  awarded IDEQ a 2015 Targeted Airshed
                                             requirements, a detailed analysis of the                control measures into the SIP at 40 CFR
                                                                                                                                                             1 See Department of Energy Weatherization
                                             submittal, and the EPA’s reasons for                    part 52, subpart N as meeting CAA
                                                                                                                                                           Program, https://www.energy.gov/sites/prod/files/
                                             proposing approval were provided in                     requirements and making them, along                   2018/06/f52/EERE_WAP_Fact%20Sheet-v2.pdf.
                                             the notice of proposed rulemaking (83                   with the attainment plan itself, federally              2 See EPA Burnwise Program, https://

                                             FR 21976), and will not be restated here.               enforceable (59 FR 43745). Once                       www.epa.gov/burnwise/burn-wise-energy-efficiency.



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                                             45832            Federal Register / Vol. 83, No. 176 / Tuesday, September 11, 2018 / Rules and Regulations

                                             Grant for the West Silver Valley PM2.5                  design value for LMP qualification as                 with respect to the standard for which
                                             NAA. As a condition of the grant                        identified in the proposal.                           the area was designated nonattainment.3
                                             agreement with the EPA, the IDEQ                          Since the proposal, the IDEQ has                    The Pinehurst PM10 NAA was
                                             committed to replace 183 uncertified                    submitted and the EPA has reviewed                    designated nonattainment for the 24-hr
                                             wood heating devices and provide the                    and concurred on the IDEQ’s                           PM10 NAAQS and therefore the
                                             associated emissions reductions. Each                   demonstration that elevated PM10                      appropriate statistical test is with
                                             homeowner receiving a changeout must                    concentrations on three days in                       respect to the 98 mg/m3 5-year average
                                             sign a certification document to ensure                 September 2017 were attributable to                   design value. The EPA has confirmed
                                             that they will remove an uncertified                    wildfire exceptional events and qualify               that the area meets the 5-year average
                                             wood heating device from their home                     for exclusion under EPA’s Exceptional                 design value of 98 mg/m3. We believe
                                             and agree to have two follow-up home                    Events Rule. The August 24, 2018                      that the IDEQ has met the requirements
                                             inspections on the new certified device,                concurrence letter to the IDEQ is                     of the LMP with regards to the 24-hr
                                             commit to proper wood burning                           included in the docket. With the                      PM10 standard and the IDEQ does not
                                             practices, and commit to not replacing                  exceptional event days excluded, the                  need to address the annual PM10
                                             the device with another solid fuel                      area continues to meet the LMP average                standard.
                                             burning device. All removed stoves are                  design value for the most recent 5-year
                                                                                                     period, through 2017. The EPA intends                 Comment—Federal Clean Air
                                             rendered permanently and irreversibly
                                                                                                     to propose final agency action on these               Deregulation
                                             inoperable and are properly disposed.
                                             We believe the grant terms and                          2017 exceptional events in a                             Summary—The ICL states that they
                                             conditions and the homeowner                            forthcoming action.                                   are concerned about recent actions and
                                             certifications provide additional                         Based on the IDEQ PM10 LMP                          statements by federal agencies that may
                                             enforceability for purposes of                          submission and the EPA’s review of air                affect vehicle emissions reductions in
                                             maintaining the PM10 standard in the                    quality monitoring data, it is reasonable             the future, and how that may affect the
                                             area.                                                   to conclude that the measures to reduce               Pinehurst PM10 NAA ability to attain
                                                While not specifically taken credit for              PM10 in the Pinehurst PM10 NAA have                   and its permanence. The ICL comment
                                             in the original attainment plan nor the                 contributed to permanent emissions                    letter specifically points to the IDEQ’s
                                             LMP, road dust control has played an                    reductions. Emissions reductions in the               reference to Tier 3 vehicle standards
                                             important part in the area. It is the                   area have been maintained since 1994,                 and the EPA’s proposal to reduce
                                             second largest source of pollution                      and enforceable control measures                      Corporate Average Fuel Economy
                                             according to the emissions inventory,                   remain in place as approved into the                  (CAFE) standards. The comment then
                                             and the area has taken measures to                      SIP. We therefore conclude that the area              requests that the EPA ‘‘identify any and
                                             reduce emissions through paving roads,                  has met its obligations with regard to                all of its models and analyses that may
                                             maintenance of roads, and adjusting                     permanent and enforceable measures to                 be impacted by current and proposed
                                             street sweeping to reduce particulate                   maintain the 24-hour PM10 standard and                deregulation of vehicle emissions.
                                             matter. With respect to permanence of                   that no further action is required.                   Furthermore, we request that any
                                             road controls, once paved their                                                                               vehicle emission model or emission
                                                                                                     Comment—Annual PM10 NAAQS                             factor for PM10 be revised such that the
                                             associated emissions will be reduced
                                             and road maintenance will ensure                          Summary—The ICL requests that the                   models and factors are not based on any
                                             lasting emissions reductions. We                        EPA explain why the LMP and the                       federal emission regulation currently
                                             received clarification from the IDEQ that               EPA’s subsequent analysis only                        under judicial or administrative
                                             since 2016, the majority of roads (over                 evaluated the 24-hour PM10 LMP design                 review.’’
                                             10 miles in a city roughly 1 square mile)               value and not the annual PM10 LMP                        Response—We do not agree with the
                                             in the Pinehurst area have been rebuilt                 design value. The commenter asserts                   commenter’s assertion regarding the
                                             or sealed.                                              that both are required.                               impact of current or proposed changes
                                                We have reviewed monitoring data for                   Response—On August 9, 2001, the                     to motor vehicle emissions standards on
                                             the area with respect to the permanence                 EPA issued guidance on streamlined                    the proposed action, because the
                                             of the emissions reductions. In Table 2                 maintenance plan provisions for certain               Pinehurst PM10 NAA does not rely on
                                             of the IDEQ submittal, monitoring data                  moderate PM10 nonattainment areas                     motor vehicle emissions reductions for
                                             is provided from 1986 through 2015.                     seeking redesignation to attainment                   attainment or its continued maintenance
                                             From 1986 through 1993, the Pinehurst                   (Memorandum from Lydia Wegman,                        of the NAAQS. Additionally, there are
                                             PM10 NAA was regularly recording                        Director, Air Quality Standards and                   no proposed changes to Tier 3 vehicle
                                             values above 100 mg/m3, and exceeded                    Strategies Division, entitled ‘‘Limited               standards and proposed CAFE standards
                                             the 3-year expected exceedances design                  Maintenance Plan Option for Moderate                  have minimal effect on criteria
                                             value of 1.0. From 1994 through 2015,                   PM10 Nonattainment Areas’’ (LMP                       pollutants, their focus instead being on
                                             Table 2 shows that the area has                         Option Memo)). Section IV of the LMP                  greenhouse gas emissions reductions.
                                             consistently met the 24-hour PM10                       Option Memo discusses LMP                                When reviewing the submitted
                                             standard, and the EPA has reviewed and                  qualification and qualifying design                   Pinehurst PM10 2013 Emissions
                                             confirmed the data. As noted in the                     values specifically. It states that ‘‘[t]he           Inventory in Table 7 of the IDEQ’s
                                             submittal, the area came into attainment                area should be attaining the NAAQS                    submittal, the primary source of PM10 is
                                             in the same timeframe as the IDEQ’s                     and the average PM10 design value for                 residential wood combustion at 17.75
                                             completion of the first batch of                        the area, based on the most recent 5                  tons per year (TPY), which is 44.5% of
                                             woodstove changeouts (76 by 1994). The                  years of air quality data at all monitors             the PM10 emissions in the area. Road
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                                             area has continued to meet the 24-hour                  in the area, should be at or below 40 mg/             dust, paved and unpaved, is the next
                                             PM10 NAAQS design value since 1994,                     m3 for the annual PM10 NAAQS and 98                   largest contributor at a cumulative 8.91
                                             and it has also shown a continued                       mg/m3 for the 24-hr PM10 NAAQS with                   TPY, or 22.3% of emissions.
                                             decrease in maximum annual 24-hr                        no violations at any monitor in the                   Cumulatively, residential wood
                                             PM10 concentrations. Additionally, the                  nonattainment area.’’                                 combustion and road dust make up
                                             EPA has determined that the Pinehurst                     To qualify for the LMP option, the
                                             PM10 NAA meets the 5-year average                       area must meet the design value test                    3 See   LMP Option Memo.



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                                                              Federal Register / Vol. 83, No. 176 / Tuesday, September 11, 2018 / Rules and Regulations                                              45833

                                             66.8% of the emissions inventory.                       would change would be the on-road                       With regard to the ICL’s request for
                                             During winter days when particulate                     mobile source. Currently, that value is               explanation of the emissions factors
                                             matter levels are often higher,                         calculated using the formula in the LMP               used, we reviewed the emissions factors
                                             residential wood combustion is 212.05                   Option Memo: DV mobile * VMT paved,                   (EFs) for residential wood combustion
                                             lb/day, which is 82.17% of the PM10                     where the DV mobile provides a 3.6509                 that IDEQ used and found them
                                             emissions in the area (Table 8). Paved                  mg/m3 contribution to the design value                consistent with the EPA EFs and
                                             road dust (unpaved is no longer part of                 and VMT paved is the 0.0166 percent                   methodology used in the 2014 National
                                             the emissions inventory), is the next                   growth rate (3.6509 * 0.0166 = 0.06 mg/               Emissions Inventory. The IDEQ used
                                             largest contributor at a 25.38 lb/day, or               m3 contribution). Given that the growth               EFs derived from EPA’s Residential
                                             9.83% of emissions. Residential wood                    rate in Pinehurst is very small, any                  Wood Combustion Emissions
                                             combustion currently makes up the                       potential changes to the emissions                    Estimation Tool version 3.1 (October
                                             majority of the emissions inventory.                    standards would have a small effect on                2016) that are more up to date than the
                                             Motor vehicle emissions by comparison                   the design value. Taking a conservative               EFs in AP–42, which were last updated
                                             make up a very small portion of the                     assumption and doubling the DV mobile                 in 1996 for this source category. We
                                             emissions inventory at 1.84                             from 3.6509 mg/m3 to 7.3018 mg/m3, and                have included in the docket the
                                             TPY(annual) and 11.09 lb/day(winter),                   applying the 0.0166 growth rate would                 documentation for v3.1 and 3.2 of the
                                             or less than 5% of both the annual and                  only increase the mobile contribution                 Residential Wood Combustion
                                             winter emissions inventories. This is                   from 0.06 mg/m3 contribution to 0.12 mg/              Emissions Estimation Tool, which has
                                             expected as motor vehicle emissions do                  m3 contribution and the Pinehurst area                the emissions factors used and the
                                             not contribute large quantities of PM10.                would still be able meet the motor                    references for those EFs. Both versions
                                                As described in section 3.4 Control                  vehicle regional analysis test. Given the             of the tool use the same EFs.
                                             Measures and section 3.2.2 Emissions                    small contribution of motor vehicle                     In response to the comment, we have
                                             Inventory Results and Adequacy                          emissions and low growth rate in the                  confirmed with the IDEQ that the
                                             Determination, the Pinehurst PM10 LMP                   Pinehurst area, we believe the Pinehurst              changeouts were with phase II or better
                                             focuses primarily on the reduction of                   PM10 NAA LMP is sufficient and no                     EPA certified stoves. We have also
                                             PM10 emissions from residential                         further action is required.                           confirmed that the IDEQ emissions
                                             woodsmoke and from road dust from                          The ICL’s request that the EPA                     inventory assumptions and calculations
                                             paved and unpaved roads. The                            identify and revise all of its models,                are correct and that the appropriate EFs
                                             Pinehurst PM10 LMP itself does not take                 analyses, and emissions factors that may              were used.
                                             credit for emissions reductions from                    be impacted by current or proposed
                                                                                                                                                           Comment—Contingency Plan
                                             motor vehicle emissions reductions nor                  changes to vehicle emissions standards
                                             does it rely on it for continued                        is outside of the scope of this action.                  Summary—The ICL requested that the
                                             attainment of the PM10 NAAQS.                                                                                 EPA further explain how the IDEQ’s
                                                As mentioned in the proposal, the                    Comment—Emission Factors                              Contingency Plan is compliant with
                                             Pinehurst area has met the PM10 3-year                    Summary—The ICL requested that the                  section 175A of the CAA. The comment
                                             design value of expected exceedance of                  EPA confirm that all woodstoves                       provides a summary with references to
                                             1.0 or less since 1994. Additionally, the               replaced were ‘‘Phase II,’’ and to require            CAA section 175A, the Calcagni Memo
                                             Pinehurst area has only recorded one                    that the IDEQ revise calculations in the              that provides guidance for maintenance
                                             value (in 2010) above 98 mg/m3 since                    case that any of the replacements were                plans, and the LMP Option Memo that
                                             1999 that was not the result of an                      not Phase II. The ICL asserts that the                provides guidance for LMPs.
                                             exceptional event. The area has                         IDEQ used incorrect emissions factors                    Response—While the commenter
                                             demonstrated, and EPA has confirmed,                    based on a comparison of AP–42                        correctly identifies that CAA section
                                             that the 3-yr and 5-yr design values                    emissions factors to those used by IDEQ               175A provides the statutory
                                             qualify for the LMP option.                             in the Pinehurst PM10 LMP, and                        requirements for maintenance plan
                                             Additionally, the area has demonstrated                 requests an explanation for this or                   requirements, and that the LMP Option
                                             that it meets the LMP motor vehicle                     revision, whichever is more appropriate.              Memo provides guidance for
                                             regional analysis, which assesses                         Response—We disagree that the IDEQ                  contingency provisions under the LMP
                                             increases in emissions based on the                     used incorrect emissions factors and do               option, the ICL’s contention that
                                             area’s growth rate as applied to paved                  not believe that any further calculations             contingency provisions 4 must be fully
                                             road dust emissions, unpaved road dust                  are needed. In 1988, the EPA finalized                adopted and take effect within one year
                                             emissions, and mobile source emissions.                 the residential wood heaters new source               and without further legislative action is
                                             It is this last category where the ICL                  performance standards (NSPS) that                     incorrect. These requirements do not
                                             comment questions if any changes in                     required performance standards for                    appear in the CAA section 175A
                                             federal emissions requirements would                    woodstoves. These performance                         requirements nor the LMP Option
                                             affect the area’s ability to attain. As                 standards were released in two phases;                Memo, and are contradicted by the
                                             explained above, motor vehicle                          Phase I went into effect immediately in               Calcagni Memo, EPA’s long-standing
                                             emissions in the Pinehurst NAA are not                  1988, and Phase II went into effect in                interpretation of redesignation and
                                             expected to affect the areas ability to                 1990. The Phase II performance                        maintenance plan requirements. There,
                                             continue to attain as they are less than                standards required that catalytic stoves              it states, ‘‘For the purposes of section
                                             5% and were not taken credit for in the                 have an emission rate of 4.1g/hr or less              175A, a State is not required to have
                                             attainment plan, nor the redesignation                  and non-catalytic stoves have an                      fully adopted contingency measures that
                                             request and LMP.                                        emissions rate of 7.5 g/hr or less. All               will take effect without further action by
                                                While we do not believe that any                     stoves that have been replaced in
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                                                                                                                                                           the State in order for the maintenance
                                             changes to motor vehicle emissions are                  Pinehurst occurred after Phase II
                                             relevant to the area’s ability to attain, we            standards were in place. Additionally,                  4 The IDEQ submittal and ICL comment letter use

                                             did a basic evaluation to determine if                  we have received confirmation from                    the terminology ‘‘contingency measures,’’ when
                                                                                                                                                           referring to the CAA section 175A ‘‘contingency
                                             the area would continue to meet the                     IDEQ that these changeouts were                       provisions’’ requirements. ‘‘Contingency measures’’
                                             LMP motor vehicle regional analysis.                    completed and that they were Phase II                 are associated with attainment planning and have
                                             The only portion of the calculation that                EPA certified stoves.                                 different requirements.



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                                             45834            Federal Register / Vol. 83, No. 176 / Tuesday, September 11, 2018 / Rules and Regulations

                                             plan to be approved.’’ Calcagni Memo at                 A violation cited in the Annual Network                  • does not impose an information
                                             12; see also Greenbaum v. EPA, 370                      Plan would trigger a schedule and                     collection burden under the provisions
                                             F.3d 527, 541 (6th Cir. 2004) (upholding                process for IDEQ to examine the data,                 of the Paperwork Reduction Act (44
                                             this portion of the Calcagni Memo).                     assess the source of the problem, and                 U.S.C. 3501 et seq.);
                                               CAA section 175A(d) and EPA’s                         identify which contingency provision to                  • is certified as not having a
                                             interpretation of that provision as set                 adopt and implement. The submitted                    significant economic impact on a
                                             out in the Calcagni Memo and the LMP                    plan lists potential provisions focused               substantial number of small entities
                                             Option Memo provide the standards by                    on control of woodsmoke and road dust,                under the Regulatory Flexibility Act (5
                                             which the EPA must evaluate                             the two primary sources of PM10 in the                U.S.C. 601 et seq.);
                                             contingency plans. Section 175A(d)                      nonattainment area. The submitted                        • does not contain any unfunded
                                             states that ‘‘[e]ach plan revision                      contingency provisions meet the CAA                   mandate or significantly or uniquely
                                             submitted under this section shall                      section 175A requirement to continue                  affect small governments, as described
                                             contain such contingency provisions as                  implementing measures relied upon for                 in the Unfunded Mandates Reform Act
                                             the Administrator deems necessary to                    attainment. There is an automatic                     of 1995 (Pub. L. 104–4);
                                             assure that the State will promptly                     process on a set schedule by which the                   • does not have Federalism
                                             correct any violation of the standard                   Pinehurst area’s design value is                      implications as specified in Executive
                                             which occurs after the redesignation of                 evaluated annually (i.e., the Annual                  Order 13132 (64 FR 43255, August 10,
                                             the area as an attainment area. Such                    Network Plan submittal-review-                        1999);
                                             provisions shall include a requirement                  approval), and a violation would trigger                 • is not an economically significant
                                             that the State will implement all                       the state to be required to evaluate,                 regulatory action based on health or
                                             measures with respect to the control of                 identify, adopt, and implement                        safety risks subject to Executive Order
                                             the air pollutant concerned which were                  contingency provisions best suited                    13045 (62 FR 19885, April 23, 1997);
                                             contained in the State implementation                                                                            • is not a significant regulatory action
                                                                                                     towards bringing the area back into
                                             plan for the area before redesignation of                                                                     subject to Executive Order 13211 (66 FR
                                                                                                     attainment. Therefore, the EPA is
                                             the area as an attainment area.’’ The                                                                         28355, May 22, 2001);
                                                                                                     finalizing approval of the IDEQ’s plan as                • is not subject to requirements of
                                             Calcagni Memo and the LMP Option                        meeting the requirements of section
                                             memo further elaborate that ‘‘Section                                                                         Section 12(d) of the National
                                                                                                     175A.                                                 Technology Transfer and Advancement
                                             175A of the Act states that a
                                             maintenance plan must include                           III. Final Action                                     Act of 1995 (15 U.S.C. 272 note) because
                                             contingency provisions, as necessary, to                                                                      application of those requirements would
                                                                                                        The EPA is approving the Pinehurst                 be inconsistent with the Clean Air Act;
                                             promptly correct any violation of the                   PM10 NAA LMP submitted by the IDEQ
                                             NAAQS which may occur after                                                                                   and
                                                                                                     and concurrently redesignating the area                  • does not provide the EPA with the
                                             redesignation of the area to attainment.                to attainment for the PM10 NAAQS.
                                             These contingency measures do not                                                                             discretionary authority to address, as
                                                                                                     Related to this action, the EPA is taking             appropriate, disproportionate human
                                             have to be fully adopted at the time of                 final agency action on the September 15,
                                             redesignation. However, the                                                                                   health or environmental effects, using
                                                                                                     2013, high wind exceptional event at                  practicable and legally permissible
                                             contingency plan is considered to be an                 the Pinehurst monitoring station.
                                             enforceable part of the SIP and the State                                                                     methods, under Executive Order 12898
                                                                                                     Additionally, the EPA is approving the                (59 FR 7629, February 16, 1994).
                                             should ensure that the contingency                      West Silver Valley annual PM2.5 base
                                             measures are adopted as soon as                                                                                  The SIP is not approved to apply on
                                                                                                     year emissions inventory as meeting                   any Indian reservation land or in any
                                             possible once they are triggered by a
                                                                                                     CAA section 172(c)(3) requirements.                   other area where the EPA or an Indian
                                             specific event. The contingency plan
                                             should identify the measures to be                      IV. Statutory and Executive Orders                    tribe has demonstrated that a tribe has
                                             adopted, and provide a schedule and                     Review                                                jurisdiction. In those areas of Indian
                                             procedure for adoption and                                                                                    country, the rule does not have tribal
                                                                                                       Under the CAA, the Administrator is                 implications and it will not impose
                                             implementation of the measures if they
                                                                                                     required to approve a SIP submission                  substantial direct costs on tribal
                                             are required. Normally, the
                                                                                                     that complies with the provisions of the              governments or preempt tribal law as
                                             implementation of contingency
                                             measures is triggered by a violation of                 Act and applicable federal regulations.               specified by Executive Order 13175 (65
                                             the NAAQS but the State may wish to                     42 U.S.C. 7410(k); 40 CFR 52.02(a).                   FR 67249, November 9, 2000).
                                             establish other triggers to prevent a                   Thus, in reviewing SIP submissions, the                  The Congressional Review Act, 5
                                             violation of the NAAQS, such as an                      EPA’s role is to approve state choices,               U.S.C. 801 et seq., as added by the Small
                                             exceedance of the NAAQS.’’                              provided that they meet the criteria of               Business Regulatory Enforcement
                                               The EPA has determined that the                       the CAA. Accordingly, this action                     Fairness Act of 1996, generally provides
                                             IDEQ’s contingency plan meets the                       merely approves state law as meeting                  that before a rule may take effect, the
                                             requirements of Section 175A(d) and the                 federal requirements and does not                     agency promulgating the rule must
                                             EPA’s guidance memos. Section 3.5 of                    impose additional requirements beyond                 submit a rule report, which includes a
                                             the IDEQ’s submittal confirms that all                  those imposed by state law. For that                  copy of the rule, to each House of the
                                             measures relied upon for attainment,                    reason, this action:                                  Congress and to the Comptroller General
                                             including woodstove changeouts,                           • Is not a ‘‘significant regulatory                 of the United States. The EPA will
                                             voluntary curtailment program, home                     action’’ subject to review by the Office              submit a report containing this action
                                             weatherization, and public awareness                    of Management and Budget under                        and other required information to the
                                                                                                     Executive Orders 12866 (58 FR 51735,                  U.S. Senate, the U.S. House of
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                                             campaign continue to be in place and
                                             will be strengthened if the PM10                        October 4, 1993) and 13563 (76 FR 3821,               Representatives, and the Comptroller
                                             standard is exceeded. If the Pinehurst                  January 21, 2011);                                    General of the United States prior to
                                             area exceeds the standard, Section 3.5.1                  • is not an Executive Order 13771 (82               publication of the rule in the Federal
                                             identifies the Annual Network Plan                      FR 9339, February 2, 2017) regulatory                 Register. A major rule cannot take effect
                                             monitoring data as the triggering                       action because SIP approvals are                      until 60 days after it is published in the
                                             mechanism for contingency provisions.                   exempted under Executive Order 12866;                 Federal Register. This action is not a


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                                                                    Federal Register / Vol. 83, No. 176 / Tuesday, September 11, 2018 / Rules and Regulations                                                                                                     45835

                                             ‘‘major rule’’ as defined by 5 U.S.C.                                            List of Subjects                                                        PART 52—APPROVAL AND
                                             804(2).                                                                          40 CFR Part 52                                                          PROMULGATION OF
                                                Under section 307(b)(1) of the CAA,                                                                                                                   IMPLEMENTATION PLANS
                                                                                                                                Environmental protection, Air
                                             petitions for judicial review of this                                            pollution control, Incorporation by
                                             action must be filed in the United States                                                                                                                ■ 1. The authority citation for part 52
                                                                                                                              reference, Intergovernmental relations,
                                             Court of Appeals for the appropriate                                             Nitrogen dioxide, Particulate matter,                                   continues to read as follows:
                                             circuit by November 13, 2018. Filing a                                           Reporting and recordkeeping                                                 Authority: 42 U.S.C. 7401 et seq.
                                             petition for reconsideration by the                                              requirements, Sulfur dioxide.
                                             Administrator of this final rule does not                                                                                                                Subpart N—Idaho
                                             affect the finality of this action for the                                       40 CFR Part 81
                                             purposes of judicial review nor does it                                            Environmental protection, Air                                         ■ 2. In § 52.670, the table in paragraph
                                             extend the time within which a petition                                          pollution control, National parks,                                      (e) is amended by adding an entry at the
                                             for judicial review may be filed, and                                            Wilderness areas.                                                       end of the table for ‘‘Pinehurst PM10
                                             shall not postpone the effectiveness of                                              Authority: 42 U.S.C. 7401 et seq.                                   Limited Maintenance Plan’’ to read as
                                             such rule or action. This action may not                                          Dated: August 30, 2018.                                                follows:
                                             be challenged later in proceedings to                                            Michelle L. Pirzadeh,
                                             enforce its requirements. (See section                                                                                                                   § 52.670      Identification of plan.
                                                                                                                              Acting Regional Administrator, Region 10.
                                             307(b)(2)).                                                                                                                                              *       *    *                 *           *
                                                                                                                                For the reasons set forth in the
                                                                                                                              preamble, 40 CFR parts 52 and 81 are                                        (e) * * *
                                                                                                                              amended as follows:

                                                                             EPA-APPROVED IDAHO NONREGULATORY PROVISIONS AND QUASI-REGULATORY MEASURES
                                                                                                                                                                              State
                                                               Name of SIP                                          Applicable geographic or                                submittal                     EPA approval date                                  Comments
                                                                provision                                             nonattainment area                                      date


                                                      *              *                                                 *                  *                                                    *                         *                                    *
                                             Pinehurst PM10 Limited Mainte-                                Shoshone County; Pinehurst Ex-                                     9/29/2017       9/11/2018, ......................................
                                               nance Plan.                                                   pansion Area and City of Pine-                                                   [Insert Federal Register citation] ..
                                                                                                             hurst.



                                             PART 81—DESIGNATION OF AREAS                                                         Authority: 42 U.S.C. 7401 et seq.                                   Northern Idaho Interstate AQCR 62
                                             FOR AIR QUALITY PLANNING                                                                                                                                 (Idaho portion):’’ to read as follows:
                                                                                                                              ■  4. In § 81.313, the table entitled
                                             PURPOSES
                                                                                                                              ‘‘Idaho-PM–10’’ is amended by revising                                  § 81.313      Idaho.
                                             ■ 3. The authority citation for part 81                                          the entry for ‘‘Eastern Washington-                                     *       *          *           *           *
                                             continues to read as follows:
                                                                                                                                                       IDAHO PM–10
                                                                                                                                                                                    Designation                                             Classification
                                                                                           Designated area
                                                                                                                                                                            Date                    Type                          Date                        Type


                                                                *                                *                                 *                                *                     *                         *                                    *
                                             Eastern Washington-Northern Idaho Interstate AQCR 62 (Idaho portion):
                                                 Shoshone County: Pinehurst Expansion Area Northwest quarter of the                                                 October 11, 2018      Attainment ............       ..............................
                                                   Northwest quarter, Section 8, Township 48 North, Range 2 East; South-
                                                   west quarter of the Northwest quarter, Section 8, Township 48, North,
                                                   Range 2 East; Northwest quarter of the Southwest quarter, Section 8,
                                                   Township 48 North, Range 2 East; Southwest quarter, Section 8, Town-
                                                   ship 48 North, Range 2 East; Southwest quarter of the Southwest quar-
                                                   ter, Section 48 North, Range 2 East, Boise Base (known as ‘‘Pinehurst
                                                   expansion area’’).
                                                 City of Pinehurst ..............................................................................................   October 11, 2018      Attainment ............       ..............................

                                                                         *                             *                              *                             *                     *                         *                                    *



                                             *         *         *           *        *
                                             [FR Doc. 2018–19600 Filed 9–10–18; 8:45 am]
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                                             BILLING CODE 6560–50–P




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Document Created: 2018-09-11 01:02:41
Document Modified: 2018-09-11 01:02:41
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis action is effective on October 11, 2018.
ContactJustin Spenillo at (206) 553-6125, or [email protected]
FR Citation83 FR 45830 
CFR Citation40 CFR 52
40 CFR 81
CFR AssociatedEnvironmental Protection; Air Pollution Control; Incorporation by Reference; Intergovernmental Relations; Nitrogen Dioxide; Particulate Matter; Reporting and Recordkeeping Requirements; Sulfur Dioxide; National Parks and Wilderness Areas

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