Data / Federal rules / 2025-01110

Approval and Promulgation of Implementation Plans; State of California; Coachella Valley; Extreme Attainment Plan for 1997 8-Hour Ozone Standards

The Environmental Protection Agency published this final rule in the Federal Register on January 21, 2025. It took effect on February 20, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is taking final action to approve elements of a state implementation plan (SIP) submittal from the State of California to meet Clean Air Act (CAA) "Extreme" nonattainment area requirements for the 1997 8-hour ozone national ambient air quality standards (NAAQS) in the Riverside Co. (Coachella Valley), CA nonattainment area ("Coachella Valley"). We are specifically approving the reasonable further progress (RFP) demonstration and the vehicle miles traveled demonstration.

Key facts

Document number: 2025-01110
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: January 21, 2025
Takes effect: February 20, 2025
Dates: This rule is effective February 20, 2025.
Docket: EPA-R09-OAR-2023-0448; FRL-11677-03-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: 5

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 January 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.