Data / Federal rules / 2024-25604

Air Plan Approval; Pennsylvania; Adoption of Federal Implementation Plan Reasonably Available Control Technology Requirements for Keystone, Conemaugh, Homer City, and Montour Generating Facilities for the 1997 and 2008 Ozone National Ambient Air Quality Standards

The Environmental Protection Agency published this final rule in the Federal Register on November 6, 2024. It took effect on December 6, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is approving a portion of the state implementation plan (SIP) revisions submitted by the Commonwealth of Pennsylvania. The revisions being approved adopt nitrogen oxides (NO<INF>X</INF>) emission limits and requirements for the coal-fired electric generating units (EGUs) equipped with selective catalytic reduction (SCR) at the Keystone, Conemaugh, Homer City, and Montour facilities. The NO<INF>X</INF> limits address reasonably available control technology (RACT) requirements for these EGUs for the 1997 and 2008 ozone national ambient air quality standards (NAAQS) and address the deficiencies identified in EPA's August 16, 2022, disapproval of an earlier SIP submission. This action is being taken under the Clean Air Act (CAA).

Key facts

Document number: 2024-25604
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: November 6, 2024
Takes effect: December 6, 2024
Dates: This final rule is effective on December 6, 2024.
Docket: EPA-R03-OAR-2024-0302; FRL-12064-02-R3
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Nitrogen dioxide; Ozone; Reporting and recordkeeping requirements
Pages: 6

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in November 2024

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.