Data / Federal rules / 2026-15362

Clean Air Act Operating Permit Program Revisions; California; Amador County Air Pollution Control District, Calaveras County Air Pollution Control District, Great Basin Unified Air Pollution Control District, Northern Sierra Air Quality Management District

The Environmental Protection Agency published this proposed rule in the Federal Register on July 30, 2026. Comments closed on August 31, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve revisions to four State of California air districts' Clean Air Act title V program rules to remove emergency affirmative defense provisions. The four districts are the Amador County Air Pollution Control District (ACAPCD), the Calaveras County Air Pollution Control District (CCAPCD), the Great Basin Unified Air Pollution Control District (GBUAPCD), and the Northern Sierra Air Quality Management District (NSAQMD) ("Districts"). This proposed action is being taken in accordance with Federal regulations and the Clean Air Act (CAA or "Act"). We are taking comments on these proposed revisions and plan to follow with a final action.

Key facts

Document number: 2026-15362
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: July 30, 2026
Comments due: August 31, 2026
Dates: Written comments must be received on or before August 31, 2026.
Docket: EPA-R09-OAR-2025-0166; FRL-12718-01-R9
Code of Federal Regulations: 40 CFR 70
Topics: Administrative practice and procedure; Air pollution control; Carbon monoxide; Environmental protection; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
Pages: 3

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 carbon monoxide · Published in July 2026

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.