Data / Federal rules / 2025-17528

Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements

The Environmental Protection Agency published this proposed rule in the Federal Register on September 11, 2025. Comments closed on October 14, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Mojave Desert Air Quality Management District (MDAQMD or "District") portion of the California State Implementation Plan (SIP). These revisions concern amended or rescinded prohibitory and administrative rules that regulate air pollutants under the Clean Air Act (CAA or "Act"). We are proposing to rescind numerous requirements from the District's portion of the California SIP because the requirements can be replaced by more current requirements. We are taking comments on this proposal and plan to follow with a final action.

Key facts

Document number: 2025-17528
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: September 11, 2025
Comments due: October 14, 2025
Dates: Comments must be received on or before October 14, 2025.
Docket: EPA-R09-OAR-2024-0210; FRL-11949-01-R9
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 10

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 September 2025

Read from the Federal Register API, last updated 2026-10-24. 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.