Data / Federal rules / 2025-11265

National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma

The Environmental Protection Agency published this final rule in the Federal Register on June 20, 2025. It took effect on July 21, 2025.

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What the agency says

The Oklahoma Department of Environmental Quality (ODEQ) has submitted updated regulations for receiving delegation and approval of its program for the implementation and enforcement of certain National Emission Standards for Hazardous Air Pollutants (NESHAP) for all sources, as provided for under previously approved delegation mechanisms. The updated State regulations incorporate by reference certain NESHAP promulgated by the Environmental Protection Agency (EPA), as they existed through June 30, 2022. The EPA is providing notice that it is taking final action to approve the delegation of certain NESHAP to ODEQ. The final delegation of authority under this action applies to sources located in certain areas of Indian country as discussed herein.

Key facts

Document number: 2025-11265
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: June 20, 2025
Takes effect: July 21, 2025
Dates: This rule is effective on July 21, 2025.
Docket: EPA-R06-OAR-2020-0086; FRL-12482-02-R6
Code of Federal Regulations: 40 CFR 61; 40 CFR 63
Topics: Administrative practice and procedure; Air pollution control; Business and industry; Carbon oxides; Environmental protection; Hazardous substances; Intergovernmental relations; Nitrogen oxides; Ozone; Radioactive materials; Reporting and recordkeeping requirements; Sulfur oxides; Uranium; Vinyl chloride; Volatile organic compounds
Pages: 9

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on business and industry · Published in June 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.