Data / Federal rules / 2026-05591

Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits

The Environmental Protection Agency published this final rule in the Federal Register on March 23, 2026. It took effect on April 22, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is finalizing conditional approval of five permitting rules as a revision to the Mojave Desert Air Quality Management District (MDAQMD or the "District") portion of the California State Implementation Plan (SIP). These are revisions to the District's New Source Review (NSR) air permitting program rules for new and modified sources of air pollution under part D of title I of the Clean Air Act (CAA or "Act").

Key facts

Document number: 2026-05591
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: March 23, 2026
Takes effect: April 22, 2026
Dates: This rule is effective on April 22, 2026.
Docket: EPA-R09-OAR-2025-0625; FRL-12877-03-R9
Code of Federal Regulations: 40 CFR 52
Topics: Administrative practice and procedure; Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 4

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 March 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.