To protect and enhance public health and the environment in Arizona.

• Through consistent, science-based environmental regulation; and clear, equitable engagement and communication;
• With integrity, respect, and the highest standards of effectiveness and efficiency;
• Because Arizonans treasure the unique environment of our state and its essential role in sustaining well-being and economic vitality, today and for future generations.

Nov. 17, 2023 | ADEQ submitted comments on proposed amendments to the Air Emissions Reporting Requirements | View Letter >

Aug. 22, 2023 |  ADEQ Comments on EPA's Proposed Rulemaking on National Emission Standards for Hazardous Air Pollutants (Primary Copper Smelting) | View Letter >

Aug. 4, 2023 | ADEQ Comments on EPA's Proposed Power Plant Rule | View Letter > 

July 13, 2023 | ADEQ Presentation to Joint Legislative Ad Hoc Study Committee on Air Quality and Energy re: State Air Quality Planning - State Implementation Plan (SIP) | View Presentation >