Data / Federal rules / 2025-22002

Air Plan Approval; Texas and Oklahoma; Texas Regional Haze Plans for the First and Second Implementation Periods and Five-Year Progress Report; Oklahoma Regional Haze Plan for the First Implementation Period

The Environmental Protection Agency published this final rule in the Federal Register on December 5, 2025. It took effect on January 5, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is approving the regional haze State Implementation Plan (SIP) revisions submitted by the Texas Commission on Environmental Quality (TCEQ or Texas), dated March 20, 2014, and July 20, 2021, as satisfying applicable requirements under the Clean Air Act (CAA or Act) and EPA's Regional Haze Rule (RHR). Additionally, the EPA is approving portions of the 2009 Texas Regional Haze SIP submission and portions of the 2010 Oklahoma Regional Haze SIP submission that relate to reasonable progress requirements for the first planning period from 2007 through 2018. The EPA is taking these actions pursuant to sections 110 and 169A of the Act.

Key facts

Document number: 2025-22002
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: December 5, 2025
Takes effect: January 5, 2026
Dates: This final rule is effective on January 5, 2026.
Docket: EPA-R06-OAR-2025-0197; FRL-12217-02-R6
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
Pages: 9

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 December 2025

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.