Document ID: EPA-R07-OAR-2019-0332-0001
Agency: epa
Document Type: Proposed Rule
Title: Approval of Iowa and Nebraska Air Quality Implementation Plans; Infrastructure SIP Requirements for the 2012 Annual Fine Particulate Matter (PM2.5) National Ambient Air Quality Standard Interstate Transport
Posted Date: 2019-06-26T04:00Z

[Federal Register Volume 84, Number 123 (Wednesday, June 26, 2019)]
[Proposed Rules]
[Pages 30062-30066]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-13370]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R07-OAR-2019-0332; FRL-9995-31-Region 7]

Approval of Iowa and Nebraska Air Quality Implementation Plans; 
Infrastructure SIP Requirements for the 2012 Annual Fine Particulate 
Matter (PM2.5) National Ambient Air Quality Standard Interstate 
Transport

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve elements of State Implementation Plan (SIP) submissions from 
Iowa Department of Natural Resources (IDNR) and Nebraska Department of 
Environmental Quality (NDEQ) for the 2012 Annual Fine Particulate 
Matter (PM2.5) National Ambient Air Quality Standard 
(NAAQS). The Clean Air Act (CAA) requires that each state adopt and 
submit a SIP that provides for the implementation, maintenance, and 
enforcement of each NAAQS promulgated by EPA, commonly referred to as 
``infrastructure'' SIPs. In this action EPA is proposing to approve the 
interstate transportation obligations of the State's 2012 
PM2.5 NAAQS infrastructure SIP submittals.

DATES: Comments must be received on or before July 26, 2019.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R07-
OAR-2019-0332, to https://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from Regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e. on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit https://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Lachala Kemp, Environmental Protection 
Agency, Region 7 Office, Air Quality Planning Branch, 11201 Renner 
Boulevard, Lenexa, Kansas 66219 at (913) 551-7214, or by email at 
kemp.lachala@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document ``we,'' ``us,'' and 
``our'' refer to EPA. This section provides additional information by 
addressing the following:

I. Written Comments
II. What is being addressed in this document?
III. Have the requirements for approval of a SIP revision been met?
IV. Background

[[Page 30063]]

V. Relevant Factors To Evaluate the 2012 PM2.5 Interstate 
Transport SIPs
VI. States' Submissions and the EPA's Analysis
VII. What action is the EPA taking?
VIII. Statutory and Executive Order Reviews

I. Written Comments

    Submit your comments, identified by Docket ID No. EPA-R07-OAR-2019-
0332, at https://www.regulations.gov. Once submitted, comments cannot 
be edited or removed from Regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e. on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit https://www.epa.gov/dockets/commenting-epa-dockets.

II. What is being addressed in this document?

    The EPA is proposing to approve the submittals as meeting the 
submittal requirement of section 110(a)(1). The EPA is proposing to 
approve certain elements of the infrastructure SIP submissions from 
Iowa received on December 22, 2015, and from Nebraska received on 
February 22, 2016. Specifically, the EPA is proposing to approve the 
following elements of section 110(a)(2)(D)(i)(I)--significant 
contribution to nonattainment (prong 1), and interfering with 
maintenance of the NAAQS (prong 2). The EPA has already addressed 
elements of 110(a)(2) including: (A) through (C), (D)(i)(II)--
prevention of significant deterioration of air quality (prong 3), 
(D)(ii), and (E) through (H), and (J) through (M) in separate 
rulemakings for Iowa and Nebraska (see docket EPA-R07-OAR-2017-0517 and 
EPA-R07-OAR-2017-0477). The EPA intends to act on section 
110(a)(2)(D)(i)(II)--protection of visibility (prong 4) in subsequent 
rulemakings. Finally, EPA is not acting on section 110(a)(2)(I) as it 
does not expect infrastructure SIP submissions to address element (I).

III. Have the requirements for approval of a SIP revision been met?

    The state's submissions have met the public notice requirements for 
SIP submissions in accordance with 40 CFR 51.102. The state of Iowa 
held a 30-day comment period, and a public hearing on November 16, 
2015. No oral or written comments were received. The state of Nebraska 
held a public comment period from November 23, 2015, to December 29, 
2015. The state received no comments during the public comment period. 
A public hearing was held on December 29, 2015. The submissions 
satisfied the completeness criteria of 40 CFR part 51, appendix V.

IV. Background

    On December 14, 2012, the EPA revised the primary annual 
PM2.5 NAAQS to 12.0 micrograms per cubic meter ([mu]g/m\3\). 
See 78 FR 3086 (January 15, 2013). An area meets the standard if the 
three-year average of its annual average PM2.5 concentration 
(at each monitoring site in the area) is less than or equal to 12.0 
[mu]g/m\3\. States were required to submit infrastructure SIP 
submissions for the 2012 PM2.5 NAAQS to EPA no later than 
December 14, 2015.
    CAA section 110(a)(1) requires states to submit SIP revisions 
within three years after promulgation of a new or revised NAAQS in 
order to provide for the implementation, maintenance, and enforcement 
of the new or revised NAAQS. CAA section 110(a)(2) outlines the 
applicable requirements of such SIP submissions, which EPA has 
historically referred to as ``infrastructure SIP'' submissions. Section 
110(a)(2) requires states to address basic SIP elements such as 
monitoring, basic program requirements (e.g., permitting), and legal 
authority that are designed to assure attainment and maintenance of the 
newly established or revised NAAQS. Thus, section 110(a)(1) provides 
the procedural and timing requirements for infrastructure SIPs, and 
section 110(a)(2) lists specific elements that states must meet for the 
infrastructure SIP requirements related to a newly established or 
revised NAAQS. The contents of an infrastructure SIP submission may 
vary depending upon the data and analytical tools available to the 
state, as well as the provisions already contained in the state's 
implementation plan at the time in which the state develops and submits 
the submission for a new or revised NAAQS.
    Section 110(a)(2)(D) has two subsections: 110(a)(2)(D)(i) and 
110(a)(2)(D)(ii). Section 110(a)(2)(D)(i) includes four distinct 
components, commonly referred to as ``prongs,'' that must be addressed 
in infrastructure SIP submissions. The first two prongs, which are 
codified in section 110(a)(2)(D)(i)(I), require plans to prohibit any 
source or other type of emissions activity in one state from 
contributing significantly to nonattainment of the NAAQS in another 
state (prong 1) and from interfering with maintenance of the NAAQS in 
another state (prong 2). The third and fourth prongs, which are 
codified in section 110(a)(2)(D)(i)(II), are provisions that prohibit 
emissions activity in one state from interfering with measures required 
to prevent significant deterioration of air quality in another state 
(prong 3) or from interfering with measures to protect visibility in 
another state (prong 4). Section 110(a)(2)(D)(ii) requires SIPs to 
include provisions insuring compliance with sections 115 and 126 of the 
Act, relating to interstate and international pollution abatement.\1\
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    \1\ The EPA highlighted the statutory requirement to submit 
infrastructure SIPs within three years of promulgation of a new 
NAAQS in an October 2, 2007, guidance document entitled ``Guidance 
on SIP Elements Required Under Sections 110(a)(1) and (2) for the 
1997 8-hour Ozone and PM2.5 National Ambient Air Quality 
Standards'' (2007 guidance). EPA has issued additional guidance 
documents and memoranda, including a September 13, 2013, guidance 
document titled ``Guidance on Infrastructure State Implementation 
Plan (SIP) Elements under Clean Air Act Sections 110(a)(1) and 
110(a)(2)'' (2013 guidance).
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    Through this notice, EPA is proposing to approve the prong 1 and 
prong 2 portions of the infrastructure SIP submissions by Iowa and 
Nebraska as demonstrating that these states do not significantly 
contribute to nonattainment or interfere with maintenance of the 2012 
PM2.5 NAAQS in any other state. For comprehensive 
information on the 2012 PM2.5 NAAQS, please refer to the 
Federal Register notice cited above.

V. Relevant Factors To Evalute the 2012 PM2.5 Intersate Transport SIPs

    The EPA has developed a consistent framework for addressing 
interstate transport with respect to the PM2.5 NAAQS. This 
framework includes the following four steps: (1) Identify downwind 
areas that are expected to have problems attaining or maintaining the 
NAAQS; (2) Identify which upwind states contribute to these air quality 
problems in amounts sufficient to warrant further review and analysis; 
(3) Identify any emissions reductions necessary to prevent an 
identified upwind state from significantly contributing to downwind 
nonattainment or interfering with downwind maintenance of the NAAQS;

[[Page 30064]]

and (4) Adopt permanent and enforceable measures needed to achieve 
those emissions reductions.
    To help states identify the receptors expected to have problems 
attaining or maintaining the 2012 annual PM2.5 NAAQS, the 
EPA released a memorandum titled, ``Information on the Interstate 
Transport `Good Neighbor' Provision for the 2012 Fine Particulate 
Matter National Ambient Air Quality Standards under Clean Air Act 
Section 110(a)(2)(D)(i)(I)'' on March 17, 2016 (herein the ``2016 
Memo'').\2\ The 2016 Memo provides projected future year annual 
PM2.5 design values for monitors throughout the country 
based on quality assured and certified ambient monitoring data and 
recent air quality modeling and explains the methodology used to 
develop these projected design values. The 2016 Memo also describes how 
the projected values can be used to help determine which monitors 
should be further evaluated as potential receptors under step 1 of the 
interstate transport framework described above, and how to determine 
whether emissions from other states significantly contribute to 
nonattainment or interfere with maintenance of the 2012 annual 
PM2.5 NAAQS at these monitoring sites.
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    \2\ https://www.epa.gov/sites/production/files/2016-08/documents/good-neighbor-memo_implementation.pdf.
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    To develop the projected values presented in the 2016 Memo, the EPA 
used the results of nationwide photochemical air quality modeling that 
it recently performed to support several ozone NAAQS-related 
rulemakings. Base year modeling was performed for 2011. Future year 
modeling was performed for 2017 to support the Cross-State Air 
Pollution Rule (CSAPR) Update for the 2008 Ozone NAAQS. See 81 FR 74504 
(October 26, 2016). Future year modeling was performed for 2025 to 
support the Regulatory Impact Assessment of the final 2015 Ozone 
NAAQS.\3\ In addition, and relevant to this proposed action on 
interstate transport SIPs for the 2012 annual PM2.5 NAAQS, 
the outputs from these model runs included hourly concentrations of 
PM2.5 that were used in conjunction with measured data to 
project annual average PM2.5 design values for 2017 and 
2025.
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    \3\ See 2015 ozone NAAQS RIA at: http://www3.epa.gov/ozonepollution/pdfs/20151001ria.pdf.
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    Areas that were designated as moderate PM2.5 
nonattainment areas for the 2012 annual PM2.5 NAAQS in 2014 
must attain the NAAQS by December 31, 2021, or as expeditiously as 
practicable. Since modeling results are only available for 2017 and 
2025, the 2016 Memo explains that one way to assess potential receptors 
for 2021 \4\ is to assume that receptors projected to have average and/
or maximum design values above the NAAQS in both 2017 and 2025 are also 
likely to be either nonattainment or maintenance receptors in 2021. 
Similarly, the EPA stated that it may be reasonable to assume that 
receptors that are projected to attain the NAAQS in both 2017 and 2025 
are also likely to be attainment receptors in 2021. Where a potential 
receptor is projected to be nonattainment or maintenance in 2017, but 
projected to be attainment in 2025, further analysis of the emissions 
and modeling may be needed to make a further judgement regarding the 
receptor status in 2021.
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    \4\ Assessing downwind PM2.5 air quality problems 
based on estimates of air quality concentrations in a future year 
aligned with the relevant attainment deadline is consistent with the 
instructions from the United States Court of Appeals for the 
District of Columbia Circuit (D.C. Circuit) in North Carolina v. 
EPA, 531 F.3d 896, 911-12 (D.C. Cir. 2008), that upwind emission 
reductions should be harmonized, to the extent possible, with the 
attainment deadlines for downwind areas.
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    Based on this approach, the EPA identified 19 potential 
nonattainment and/or maintenance receptors. All of the 17 potential 
nonattainment receptors are located in California. One of the potential 
maintenance-only receptors is located in Shoshone County, Idaho, and 
the other potential maintenance-only receptor is located in Allegheny 
County, Pennsylvania.
    The 2016 memorandum also notes that because of data quality 
problems, nonattainment and maintenance projections were not conducted 
for monitors in all or portions of Florida, Illinois, Idaho (outside of 
Shoshone County), Tennessee and Kentucky. EPA notes, however, that data 
quality problems have subsequently been resolved for all of the 
aforementioned areas. These areas have current design values \5\ below 
the 2012 PM2.5 NAAQS and are expected to continue to 
maintain the NAAQS due to downward emission trends for nitrogen oxides 
(NOX) and sulfur dioxide (SO2) and therefore are 
not considered potential receptors for the purpose of interstate 
transport for the 2012 PM2.5 NAAQS.
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    \5\ Current design values include the 2015-2017 available and 
certified data that states submitted to EPA on May 1, 2018, through 
the Air Quality System.
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    After identifying potential receptors, the next step is to identify 
whether upwind states contribute to air pollution at each of the 
identified receptors in other states. In the 2016 Memo, the EPA did not 
calculate the portion of any downwind state's predicted 
PM2.5 concentrations that would result from emissions from 
individual states. Accordingly, the EPA will evaluate prong 1 and 2 
submissions for states using a weight of evidence analysis. This 
analysis is based on a review of the state's submission and other 
available information, including air quality trends; geographical and 
meteorological information; local emissions in downwind states and 
emissions from the upwind state; and contribution modeling from prior 
interstate transport analyses. While none of these factors is by itself 
fully conclusive, together they may be used in weight of evidence 
analyses to determine whether the emissions from each of the states 
that are the subject of this notice will significantly contribute to 
nonattainment or interfere with maintenance of the 2012 annual 
PM2.5 NAAQS at the identified receptors in the 2016 Memo.

VI. States' Submissions and the EPA's Analysis

    Iowa: Iowa and the EPA's supplemental analysis concluded that the 
state does not contribute significantly to nonattainment or interfere 
with maintenance of the 2012 annual PM2.5 NAAQS in any other 
state for the following reasons: (1) There are no designated 
PM2.5 nonattainment areas in Iowa or in surrounding states; 
(2) available monitoring data in Iowa and in the surrounding states 
show annual average concentrations below the standard; and (3) Iowa has 
SIP-approved regulations to assure that the state is not interfering 
with attainment or maintenance of the 2012 PM2.5 NAAQS in 
any other state. As noted in EPA's CSAPR analysis, Iowa's emissions 
contribute to a potential maintenance receptor in Madison County, 
Illinois. As stated above, the 2016 memorandum notes that because of 
data quality problems, nonattainment and maintenance projections were 
not conducted for monitors in a number of states including Illinois. 
The EPA notes, however, that data quality problems have subsequently 
been resolved for all of the aforementioned areas. These areas have 
current design values below the 2012 PM2.5 NAAQS and are 
expected to continue to maintain the NAAQS due to downward emission 
trends for nitrogen oxides (NOX) and sulfur dioxide 
(SO2) and therefore are not considered potential receptors 
for the purpose of interstate transport for the 2012 PM2.5 
NAAQS.
    With regard to the 17 California potential receptors, located in 
the San Joaquin Valley or South Coast nonattainment areas, Iowa is 
nearly 1,500 miles--and downwind--from

[[Page 30065]]

California. With this large distance and a general prevailing west to 
east wind flow, there is no evidence that Iowa will impact the 
California potential receptors, and as a result, the EPA concludes that 
emissions in Iowa do not significantly contribute to nonattainment or 
interfere with maintenance.
    With regard to the Shoshone County, Idaho receptor, Iowa is more 
than 1000 miles and downwind of this receptor. With this distance and 
prevailing wind direction, there is no evidence that Iowa will impact 
this area, and as a result, EPA concludes that sources in Iowa do not 
significantly contribute to nonattainment or interfere with maintenance 
of the 2012 PM2.5 NAAQS at the projected Shoshone County 
receptor.
    The EPA's supplemental analysis focused on whether there are 
maintenance or nonattainment receptors for 2021 to which Iowa is 
linked. As noted above, the EPA's 2016 memorandum identifies the 
Allegheny County Liberty monitor (AQS ID: 42-003-0064) as a potential 
maintenance receptor in 2017, but indicates that it is likely to attain 
and maintain the annual standard in 2021. The EPA's review of the CSAPR 
contribution modeling indicates that Iowa's contribution to the Liberty 
monitor is less than one percent of the 2012 PM2.5 NAAQS.
    Based on weight of the evidence presented above, the EPA proposes 
to approve Iowa's SIP submission on grounds that it addresses the 
State's 110(a)(2)(D)(i)(I) good neighbor obligation for the 2012 
PM2.5 standard and that the State will not significantly 
contribute to nonattainment or interfere with maintenance of the 2012 
PM2.5 NAAQS in any other state.
    Nebraska: Nebraska and the EPA's supplemental analysis concluded 
that it does not contribute significantly to nonattainment or interfere 
with maintenance of the 2012 annual PM2.5 NAAQS in any other 
state for the following reasons: (1) There are no designated 
PM2.5 nonattainment areas in Nebraska or in surrounding 
states; (2) modeling conducted by EPA in support of CSAPR indicates 
that Nebraska contribution to any designated 2012 PM2.5 
nonattainment area is less than one percent of the standard; and (3) 
available monitoring data in Nebraska and in the surrounding states 
show annual average concentrations below the standard.
    With regard to the 17 California potential receptors, located in 
the San Joaquin Valley or South Coast nonattainment areas, Nebraska is 
well over 1,000 miles--and downwind--from California. With this large 
distance and a general prevailing west to east wind flow, there is no 
evidence that Nebraska will impact the California potential receptors, 
and as a result, the EPA concludes that emissions in Nebraska do not 
significantly contribute to nonattainment or interfere with 
maintenance.
    With regard to the Shoshone County, Idaho receptor, Nebraska is 
more than 800 miles and downwind of this receptor. With this distance 
and prevailing wind direction, there is no evidence that Nebraska will 
impact this area, and as a result, the EPA concludes that sources in 
Nebraska do not significantly contribute to nonattainment or interfere 
with maintenance of the 2012 PM2.5 NAAQS at the projected 
Shoshone County receptor.
    The EPA's supplemental analysis focused on whether there are 
maintenance or nonattainment receptors for 2021 to which Nebraska is 
linked. As noted above, the EPA's 2016 memorandum identifies the 
Allegheny County Liberty monitor (AQS ID: 42-003-0064) as a potential 
maintenance receptor in 2017, but indicates that it is likely to attain 
and maintain the annual standard in 2021. The EPA's review of the CSAPR 
contribution modeling indicates that Nebraska's contribution to the 
Liberty monitor is less than one percent of the 2012 PM2.5 
NAAQS.
    Based on weight of the evidence presented above, EPA proposes to 
approve Nebraska's SIP submission on grounds that it addresses the 
State's 110(a)(2)(D)(i)(I) good neighbor obligation for the 2012 
PM2.5 standard and that the state will not significantly 
contribute to nonattainment or interfere with maintenance of the 2012 
PM2.5 NAAQS in any other state.

VII. What action is the EPA taking?

    The EPA is proposing to approve the following elements of Iowa's 
December 22, 2015, and Nebraska's February 22, 2016, infrastructure SIP 
submissions: Section 110(a)(2)(D)(i)(I)--significant contribution to 
nonattainment (prong 1), and interfering with maintenance of the NAAQS 
(prong 2) as applicable to the 2012 Annual PM2.5 NAAQS.

VIII. Statutory and Executive Order Reviews

    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 the National Technology 
Transfer and Advancement Act (NTTA) because this rulemaking does not 
involve technical standards; and
     Does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    The SIP is not approved to apply on any Indian reservation land or 
in any other area where 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 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).

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations,

[[Page 30066]]

Nitrogen dioxide, Particulate matter, Reporting and recordkeeping 
requirements, Sulfur dioxides.

    Dated: June 18, 2019.
James Gulliford,
Regional Administrator, Region 7.
    For the reasons stated in the preamble, the EPA proposes to amend 
40 CFR part 52 as set forth below:

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-Q Iowa

0
2. In Sec.  52.820, the table in paragraph (e) is amended by adding 
entry ``(51)'' to read as follows:

Sec.  52.820  Identification of plan.

* * * * *
    (e)* * *

                                   EPA-Approved Iowa Nonregulatory Provisions
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                                    Applicable
  Name of nonregulatory SIP       geographic or          State        EPA approval date         Explanation
          provision             nonattainment area  submittal date
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
(51) Section                   Statewide..........      12/15/2015  [Date of publication   This action approves
 110(a)(2)(D)(i)(I)-significa                                        of the final rule in   the following CAA
 nt contribution to                                                  the Federal            elements: 110(a)(1)
 nonattainment (prong 1), and                                        Register], [Federal    and
 interfering with maintenance                                        Register citation of   110(a)(2)(D)(i)(I)--
 of the NAAQs (prong 2)                                              the final rule].       prongs 1 and 2 [EPA-
 (Interstate Transport)                                                                     R07-OAR-2019-0332;
 Infrastructure Requirements                                                                FRL-9995-31-Region
 for the 2012 Annual Fine                                                                   7].
 Particulate Matter (PM2.5)
 NAAQS.
----------------------------------------------------------------------------------------------------------------

Subpart CC-Nebraska

0
3. In Sec.  52.1420, as proposed to be amended May 9, 2019, at 84 FR 
20319, the table in paragraph (e) is further amended by adding entry 
``(36)'' to read as follows:

Sec.  52.1420  Identification of plan.

* * * * *
    (e)* * *

                                 EPA-Approved Nebraska Nonregulatory Provisions
----------------------------------------------------------------------------------------------------------------
                                    Applicable
  Name of nonregulatory SIP       geographic or          State        EPA approval date         Explanation
          provision             nonattainment area  submittal date
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
(36) Section                   Statewide..........       2/22/2016  [Date of publication   This action approves
 110(a)(2)(D)(i)(I) -                                                of the final rule in   the following CAA
 significant contribution to                                         the Federal            elements: 110(a)(1)
 nonattainment (prong 1), and                                        Register], [Federal    and
 interfering with maintenance                                        Register citation of   110(a)(2)(D)(i)(I)--
 of the NAAQs (prong 2)                                              the final rule].       prongs 1 and 2 [EPA-
 (Interstate Transport)                                                                     R07-OAR-2019-0332;
 Infrastructure Requirements                                                                FRL-9995-31-Region
 for the 2012 Annual Fine                                                                   7].
 Particulate Matter (PM2.5)
 NAAQS.
----------------------------------------------------------------------------------------------------------------

[FR Doc. 2019-13370 Filed 6-25-19; 8:45 am]
BILLING CODE 6560-50-P