Rule lifecycle · DOCKET:EPA-R09-OAR-2023-0054
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
Environmental Protection Agency — observed across 2 documents over 118 days. Use the source documents below before deciding whether this affects your business.
In plain English
The EPA is approving Arizona's updated plans for cleaner-burning gasoline, winter fuel blends, and fuel set-aside programs to improve air quality in the state. Fuel suppliers and gas station owners operating in Arizona must verify they can meet the new fuel standards, which take effect November 18, or face compliance issues.
First seen
Jun 23, 2026
Last seen
Oct 19, 2026
Latest stage
Rule
PRORULE → RULE
118d
Effective on
Wednesday, November 18, 2026
Stage timeline
Proposed·Jun 23, 2026·91 FR 37366
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
comments close Jul 23, 2026#2026-12551
Final·Oct 19, 2026·91 FR 66003
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
effective Nov 18, 2026#2026-21268