Data / Federal rules / 2025-04790

Interim Final Determination To Stay and Defer Sanctions; California; Sacramento Metro Area

The Environmental Protection Agency published this final rule in the Federal Register on March 21, 2025. It took effect on March 21, 2025. Comments closed on April 21, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is making an interim final determination to stay and defer the imposition of sanctions under the Clean Air Act (CAA), based on a proposed determination that the Sacramento Metro area has attained the 2008 8-hour ozone national ambient air quality standards (NAAQS) by its December 31, 2024, attainment date. The proposed determination of attainment is published elsewhere in this issue of the Federal Register.

Key facts

Document number: 2025-04790
Type: Final rule
Action: Interim final determination
Agency: Environmental Protection Agency
Published: March 21, 2025
Takes effect: March 21, 2025
Comments due: April 21, 2025
Dates: This interim final determination is effective on March 21, 2025. However, comments will be accepted until April 21, 2025.
Docket: EPA-R09-OAR-2025-0070; FRL-12637-01-R9
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 2

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 March 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.