EPA proposes approval of Arizona fuel rule changes for Phoenix and Tucson areas
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Table of Contents
The Environmental Protection Agency is proposing to approve updates to Arizona’s state implementation plan regarding cleaner burning gasoline, winter oxygenated fuels, and the gasoline set-aside program. These changes were submitted by the Arizona Department of Environmental Quality in June 2021, with supplemental information provided in 2025.
Why it matters: This matters because it formalizes Arizona’s local fuel regulations into federal law, ensuring that the state continues to meet its obligations for air quality in areas that have historically struggled with pollution. For most people, this means the current fuel standards in Phoenix and Tucson will remain in effect without interruption, though it does not introduce new restrictions or relax existing ones at this stage.
Who it affects
- Fuel distributors and retailers operating in Maricopa County (Phoenix area) and Pima County (Tucson area).
This is a proposed rule from the EPA Federal Register; you should check the full document for technical details before relying on this summary for compliance purposes.
Agency: Environmental Protection Agency
Source: Federal Register — read the official document