[Federal Register Volume 90, Number 80 (Monday, April 28, 2025)]
[Rules and Regulations]
[Pages 17556-17559]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-07255]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[EPA-R03-OAR-2024-0316; FRL-11777-02-R3]


Air Plan Approval; Pennsylvania; Redesignation of the Allegheny 
County Nonattainment Area to Attainment and Approval of the Area's 
Maintenance Plan for the 2010 1-Hour Primary Sulfur Dioxide National 
Ambient Air Quality Standard

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is approving both a 
redesignation request and state implementation plan (SIP) revision 
submitted on November 14, 2023 by the Commonwealth of Pennsylvania on 
behalf of the Allegheny County Health Department (ACHD). The request 
asked the EPA to redesignate the Allegheny County, Pennsylvania area 
from nonattainment to attainment for the 2010 1-hour primary sulfur 
dioxide (SO2) national ambient air quality standard (NAAQS), 
while the revision included Allegheny County's maintenance plan for the 
2010 1-hour primary SO2 standard for the Allegheny County 
Area. The EPA is approving this redesignation of the Allegheny County 
Area from nonattainment to attainment for the 2010 SO2 NAAQS 
and the revision to the Pennsylvania SIP in accordance with the 
requirements of the Clean Air Act (CAA).

[[Page 17557]]


DATES: This final rule is effective on May 28, 2025.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID Number EPA-R03-OAR-2024-0316. All documents in the docket are 
listed on the www.regulations.gov website. Although listed in the 
index, some information is not publicly available, e.g., confidential 
business information (CBI) or other information whose disclosure is 
restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the internet and will be publicly available 
only in hard copy form. Publicly available docket materials are 
available through www.regulations.gov, or please contact the person 
identified in the FOR FURTHER INFORMATION CONTACT section for 
additional availability information.

FOR FURTHER INFORMATION CONTACT: Philip McGuire, Planning & 
Implementation Branch (3AD30), Air & Radiation Division, U.S. 
Environmental Protection Agency, Region III, 1600 John F Kennedy 
Boulevard, Philadelphia, Pennsylvania 19103. The telephone number is 
(215) 814-2251. Mr. McGuire can also be reached via electronic mail at 
mcguire.philip@epa.gov.

SUPPLEMENTARY INFORMATION:

I. Background

    On December 11, 2024 (89 FR 99790), the EPA published a notice of 
proposed rulemaking (NPRM) for the Commonwealth of Pennsylvania. In the 
NPRM, the EPA proposed to redesignate the Allegheny County, 
Pennsylvania area from nonattainment to attainment for the 2010 1-hour 
primary SO2 NAAQS. The EPA also proposed approval of a 
revision to the Pennsylvania SIP which included Allegheny County's 
maintenance plan for the 2010 1-hour primary SO2 NAAQS, the 
approval of which is required for redesignation under CAA section 
107(d)(3)(E). The formal SIP revision was submitted by Pennsylvania on 
behalf of ACHD on November 14, 2023. The public comment period for the 
proposed rule ended on January 10, 2024 and the EPA received no 
comments during the public comment period.

II. Summary of SIP Revision and EPA Analysis

    The December 11, 2024 proposal (89 FR 99790) provides a detailed 
discussion of the requirements of CAA section 107(d)(3)(E)--which 
identifies the five criteria that must be met before a nonattainment 
area may be redesignated to attainment--and the EPA's analysis of how 
each requirement was met. To summarize this discussion: (1) the EPA 
determined that the Allegheny County Area attained the 2010 
SO2 NAAQS based on air quality monitoring data in compliance 
with the standard and on emissions data that is below modeled emissions 
limits identified in Pennsylvania's 2017 attainment plan; (2) the EPA 
determined that Pennsylvania has a fully approved SIP for the Allegheny 
County Area under section 110(k) of the CAA for all requirements 
applicable for purposes of redesignation; (3) the EPA determined that 
the improvement in the Allegheny County Area's air quality is due to 
permanent and enforceable reductions in emissions, including 
implemented control measures and lower permitted SO2 
emissions rates at various facilities throughout the Allegheny County 
Area; (4) the EPA determined that Pennsylvania's maintenance plan was 
fully approvable and ensures that the Allegheny County Area will 
continue to attain the 2010 SO2 NAAQS for at least 10 years 
following redesignation and further includes contingency measures to 
correct for any potential future 2010 SO2 NAAQS violations; 
and (5) the EPA determined that Pennsylvania has met all applicable 
requirements for the Allegheny County Area under CAA section 110 and 
part D. Additional rationale for the EPA's proposed action are 
explained in the NPRM, and will not be restated here. No public 
comments were received on the NPRM.

III. Final Action

    The EPA is approving the redesignation of the Allegheny County Area 
from nonattainment to attainment in accordance with Pennsylvania's 
November 14, 2023, request. The criteria under CAA section 107(d)(3)(E) 
as specific to the 2010 SO2 NAAQS have been met. The EPA is 
determining that the Allegheny County Area is attaining the 2010 
SO2 NAAQS, the state has a fully approved applicable state 
implementation plan under CAA section 110(k), the improvement in air 
quality is due to permanent and enforceable SO2 emission 
reductions in the Allegheny County Area, the state now has a fully 
approved maintenance plan for the area (as noted below), and the state 
has met all requirements applicable to the area under CAA section 110 
and Part D. On this basis, the EPA is approving the redesignation 
request from Pennsylvania for the Allegheny County Area and changing 
the legal designation of the Allegheny County Area at 40 CFR part 81 to 
attainment for the 2010 SO2 NAAQS.
    The EPA is also approving the Allegheny County 2010 SO2 
NAAQS maintenance plan as a revision to the Pennsylvania SIP. The 
maintenance plan demonstrates that the area will continue to maintain 
the 2010 SO2 NAAQS for at least 10 years following 
redesignation and includes a process to implement contingency measures 
to remedy any future violations of the 2010 SO2 NAAQS.

IV. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a 
SIP submission that complies with the provisions of the Clean Air Act 
and applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). 
Thus, in reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. 
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 Order 12866 (58 
FR 51735, October 4, 1993);
     Executive Order 14192 (90 FR 9065, February 6, 2025) does 
not apply because SIP actions are exempt from review 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 subject to Executive Order 13045 (62 FR 19885, 
April 23, 1997) because it approves a state program;
     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001); and
     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.

[[Page 17558]]

    In addition, 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).
    This action is subject to the Congressional Review Act, and EPA 
will submit a rule report to each House of the Congress and to the 
Comptroller General of the United States. This action is not a ``major 
rule'' as defined by 5 U.S.C. 804(2).
    Under section 307(b)(1) of the Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by June 27, 2025. 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, Reporting and recordkeeping 
requirements, Sulfur oxides.
    Intergovernmental relations, Reporting and recordkeeping 
requirements, Sulfur oxides.

40 CFR Part 81

    Environmental protection, Air pollution control, Carbon monoxide, 
Intergovernmental relations, Lead, Nitrogen dioxide, Ozone, Particulate 
matter, Reporting and recordkeeping requirements, Sulfur oxides, 
Volatile organic compounds.

Catherine A. Libertz,
Acting Regional Administrator, Region III.

    For the reasons stated in the preamble, the EPA amends 40 CFR parts 
52 and 81 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 NN--Pennsylvania

0
2. In Sec.  52.2020, the table in paragraph (e)(1) is amended by adding 
the entry ``Maintenance Plan for the Allegheny County, Pennsylvania 
Nonattainment Area for the 2010 Sulfur Dioxide Primary National Ambient 
Air Quality Standard'' at the end of the table to read as follows:


Sec.  52.2020   Identification of plan.

* * * * *
    (e) * * *
    (1) * * *

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                                                           State
    Name of non-regulatory SIP          Applicable       submittal    EPA approval date   Additional explanation
             revision                geographic area        date
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                                                  * * * * * * *
Maintenance Plan for the           Cities of Clairton,   11/14/2023  4/28/2025, 90 FR
 Allegheny County, Pennsylvania     Duquesne, and                     [INSERT FEDERAL
 Nonattainment Area for the 2010    McKeesport; the                   REGISTER PAGE
 Sulfur Dioxide Primary National    Townships of                      WHERE THE DOCUMENT
 Ambient Air Quality Standard.      Elizabeth,                        BEGINS].
                                    Forward, and North
                                    Versailles, and
                                    the following
                                    Boroughs:
                                    Braddock,
                                    Dravosburg, East
                                    McKeesport, East
                                    Pittsburgh,
                                    Elizabeth,
                                    Glassport,
                                    Jefferson Hills,
                                    Liberty, Lincoln,
                                    North Braddock,
                                    Pleasant Hills,
                                    Port Vue,
                                    Versailles, Wall,
                                    West Elizabeth,
                                    and West Mifflin.
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* * * * *

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.  81.339, amend the table entitled ``Pennsylvania--2010 
Sulfur Dioxide NAAQS [Primary],'' by revising the entry for ``Allegheny 
County (part)'' to read as follows:


Sec.  81.339  Pennsylvania.

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[[Page 17559]]



                 Pennsylvania--2010 Sulfur Dioxide NAAQS
                                [Primary]
------------------------------------------------------------------------
                                                 Designation
        Designated area \1\        -------------------------------------
                                       Date \2\             Type
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Allegheny, PA:
    Allegheny County (part).......       5/28/2025  Attainment.
        The area consisting of:
         Borough of Braddock,
         Borough of Dravosburg,
         Borough of East
         McKeesport, Borough of
         East Pittsburgh, Borough
         of Elizabeth, Borough of
         Glassport, Borough of
         Jefferson Hills, Borough
         of Liberty, Borough of
         Lincoln, Borough of North
         Braddock, Borough of
         Pleasant Hills, Borough
         of Port Vue, Borough of
         Versailles, Borough of
         Wall, Borough of West
         Elizabeth, Borough of
         West Mifflin, City of
         Clairton, City of
         Duquesne, City of
         McKeesport, Elizabeth
         Township, Forward
         Township, North
         Versailles Township.
------------------------------------------------------------------------
 
                              * * * * * * *
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\1\ Includes any Indian country in each county or area, unless otherwise
  specified. EPA is not determining the boundaries of any area of Indian
  country in this table, including any area of Indian country located in
  the larger designation area. The inclusion of any Indian country in
  the designation area is not a determination that the state has
  regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

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[FR Doc. 2025-07255 Filed 4-25-25; 8:45 am]
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