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

What it does

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.

The Environmental Protection Agency's summary, as published in the Federal Register.

What it would change

1 part of Title 40 of the Code of Federal Regulations:

40 CFR 52

What happens next and when

Comments must be received on or before September 10, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket EPA-R09-OAR-2026-5743 on Regulations.gov
• Title 40 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register