Data / Federal rules / 2026-00782

Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley

The Environmental Protection Agency published this proposed rule in the Federal Register on January 15, 2026. Comments closed on February 17, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to determine that the Riverside County (Coachella Valley) 1997 ozone Extreme nonattainment area ("Coachella Valley") attained the 1997 ozone national ambient air quality standards (NAAQS) by its June 15, 2025, attainment date. This proposed determination is based on quality- assured and certified ambient air quality monitoring data from 2022 through 2024. We are taking comments on this proposal and plan to follow with a final action.

Key facts

Document number: 2026-00782
Type: Proposed rule
Action: Proposed determination
Agency: Environmental Protection Agency
Published: January 15, 2026
Comments due: February 17, 2026
Dates: Comments must be received on or before February 17, 2026.
Docket: EPA-R09-OAR-2025-3127; FRL-13098-01-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: 6

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 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.