Summary:

ADEQ proposes amending Arizona Administrative Code (A.A.C.) Title 18, Chapter 4, Articles 1 and 2 by expedited rulemaking. The amendments are limited to incorporating federal rules by reference and updating outdated rules.

Documents:

• Notice of Proposed Expedited Rulemaking | View NPERM >
• Notice of Comment Period
  • Comment Period: Jan. 29, 2026 – March 2, 2026
• Notice of Final Rulemaking (submitted to the Governor’s Regulatory Council for approval) | View NFRM  >
  • The rule was considered at the Governor’s Regulatory Council's May 27, 2026, Study Session and will be considered at the June 2, 2026, Council Meeting.

Additional Information: 

• Governor’s Regulatory Review Council (GRRC) Study Session and Council Meeting Agendas (including meeting links), Meeting Documents, including PDF copies of materials provided to GRRC for rulemakings, and Minutes will be available on GRRC's website | Visit Website >