2025 Arizona Regional Haze Progress Report

• Public Comment Review: Proposed 2025 Regional Haze Progress Report | View >
  • The public comment period for the Proposed 2025 Regional Haze Progress Report is from Nov. 5, 2024 to Dec. 5, 2024. Learn more about the proposed report, submit comments, and/or register for the public hearing | View Public Notice >

Arizona 2018-2028 Regional Haze
State Implementation Plan (SIP) Revision

• SIP Revision Submittal Letter | View >
• Final SIP Revision | View (160MB PDF) >
• Comment Letter: EPA Regional Haze Informational Docket | View >

Non-point Rulemaking

• ADEQ Law and Rule Webpage | View >
• Rules Supplement to Arizona 2018 – 2028 Regional Haze SIP Revision | View >

Past Regional Haze SIP Revisions

• 2017 | Coronado Regional Haze BART Alternative | View >
• 2015 | Arizona Regional Haze SIP 5-Year Progress Report | View >
• 2015 | APS Cholla Regional Haze BART Reassessment | View >
• 2014 | AEPCO Regional Haze Better-than-BART SIP Revision | View >
• 2013 | Arizona Regional Haze 308 SIP Revision | View >
• 2011 | Arizona Regional Haze Plan | View >