Home / Agencies / EPA / 2026-10280
Final Rule

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

Agency
EPA
Document Number
2026-10280
Published
May 22, 2026
Effective Date
June 22, 2026

Abstract

The Environmental Protection Agency (EPA) is taking final action to approve, under the Clean Air Act (CAA or "Act"), revisions to the Arizona state implementation plan (SIP). These revisions concern the Arizona Department of Environmental Quality's (ADEQ's) demonstration regarding reasonably available control technology (RACT) requirements for the 2015 ozone national ambient air quality standards (NAAQS or "standards") within the Gila County portion of the Phoenix- Mesa ozone nonattainment area.

Federal Register Source

This document is published by the Office of the Federal Register, National Archives and Records Administration. Access the full regulatory text, preamble, and docket comments below.

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Frequently Asked Questions

What is the 2026-10280 Federal Register document?
Document 2026-10280 is a Final Rule published by the Environmental Protection Agency in the Federal Register on May 22, 2026, with an effective date of June 22, 2026. The Environmental Protection Agency (EPA) is taking final action to approve, under the Clean Air Act (CAA or "Act"), revisions to the Arizona state implementation plan (SIP). These revisions concern the Arizona Department of Environmental Quality's (ADEQ's) demonstration regarding reasonably available control technology (RACT) requirements for the 2015 ozone national ambient air quality standards (NAAQS or "standards") within the Gila County portion of the Phoenix- Mesa ozone nonattainment area. View the original at https://www.federalregister.gov/documents/2026/05/22/2026-10280/air-plan-revisions-arizona-arizona-department-of-environmental-quality-gila-county-reasonably.
Is document 2026-10280 an economically significant rule?
No. Document 2026-10280 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.

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