Dec. 21, 2023 | ADEQ comments on EPA's 2023 proposed revisions to the Guideline on Air Quality Models and enhancements to the AERMOD dispersion modeling system | View Letter >
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 >
March 20, 2023 | ADEQ Comments On EPA's Proposed Rulemaking on Reconsideration of the National Ambient Air Quality Standards for Particulate Matter | View Letter >