Data / Federal rules / 2026-16335

Air Quality Plan; Arizona; Maricopa County Air Quality Department; Gasoline Loading

The Environmental Protection Agency published this proposed rule in the Federal Register on August 11, 2026. Comments closed on September 10, 2026.

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What the agency says

The U.S. Environmental Protection Agency (EPA) is proposing to approve and conditionally approve revisions to the Maricopa County Air Quality Department (MCAQD or "County") portion of the Arizona State Implementation Plan (SIP). These revisions concern emissions of volatile organic compounds (VOC) from loading organic liquids and gasoline. We are proposing action on local rules to regulate these emission sources under the Clean Air Act (CAA or "Act"). We are also proposing to approve and conditionally approve the MCAQD's reasonably available control technology (RACT) demonstration for the source categories associated with these rules for the 2008 8-hour ozone national ambient air quality standards (NAAQS) in the Phoenix-Mesa ozone nonattainment area.

Key facts

Document number: 2026-16335
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: August 11, 2026
Comments due: September 10, 2026
Dates: Comments must be received on or before September 10, 2026.
Docket: EPA-R09-OAR-2026-5743; FRL-13518-02-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 August 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.