Data / Federal rules / 2026-02845

Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology

The Environmental Protection Agency published this proposed rule in the Federal Register on February 12, 2026. Comments closed on March 16, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA or "Act"), revisions to the Arizona state implementation plan (SIP) addressing reasonably available control technology (RACT) requirements for the 2015 ozone national ambient air quality standards (NAAQS or "standard") within the Gila County portion of the Phoenix-Mesa ozone nonattainment area. This proposal explains our evaluation of Arizona's SIP submittal and basis for proposing approval.

Key facts

Document number: 2026-02845
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: February 12, 2026
Comments due: March 16, 2026
Dates: Comments must be received on or before March 16, 2026.
Docket: EPA-R09-OAR-2025-2961; FRL-13073-01-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: 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 February 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.