Data / Federal rules / 2025-17039

Revisions to the Clean Air Act Operating Permit Program; California; San Diego County Air Pollution Control District

The Environmental Protection Agency published this final rule in the Federal Register on September 5, 2025. It took effect on November 4, 2025. Comments closed on October 6, 2025.

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What the agency says

With this direct final rule, the Environmental Protection Agency (EPA) is promulgating approval of revisions to the Clean Air Act Operating Permit Program (title V) of the San Diego County Air Pollution Control District (SDCAPCD or "District") in California. The EPA is taking this final action in accordance with federal regulations and the Clean Air Act (CAA or "Act").

Key facts

Document number: 2025-17039
Type: Final rule
Action: Direct final rule
Agency: Environmental Protection Agency
Published: September 5, 2025
Takes effect: November 4, 2025
Comments due: October 6, 2025
Dates: This rule is effective November 4, 2025 without further notice, unless the EPA receives adverse comments by October 6, 2025. If the EPA receives adverse comments, we will publish a timely withdrawal in the Federal Register informing the public that the rule will not take effect.
Docket: EPA-R09-OAR-2025-0038; FRL-12574-02-R9
Code of Federal Regulations: 40 CFR 70
Topics: Administrative practice and procedure; Air pollution control; Environmental protection; Intergovernmental relations; Reporting and recordkeeping requirements
Pages: 2

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 environmental protection · Published in September 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.