Summary: 

ADEQ is in the process of revising water quality rules in Title 18 of the Arizona Administrative Code (A.A.C.) through expedited rulemakings. The objective of the rulemakings is to correct typographical errors, update outdated citations and references, clarify language, and fix similar clerical issues in Chapters 4, 5, 9, and 11, which will not add regulatory burden.

Documents:

Notice of Docket Openings:

• 18 A.A.C. Chapter 4 | View >
• 18 A.A.C. Chapter 5 | View >
• 18 A.A.C. Chapter 9 | View >
• 18 A.A.C. Chapter 11 | View >

Notice of Proposed Expedited Rulemakings:

• 18 A.A.C. Chapter 4 | View >
• 18 A.A.C. Chapter 5 | View >
• 18 A.A.C. Chapter 9 | View >
• 18 A.A.C. Chapter 11 | View >

Notice of Comment Period

• Sept. 6, 2024 – Oct. 7, 2024

Notice of Final Expedited Rulemakings (filed with the Secretary of State March 7, 2025) Pre-Publication:

• 18 A.A.C. Chapter 4 | View >
• 18 A.A.C. Chapter 5 | View >
• 18 A.A.C. Chapter 9 | View >
• 18 A.A.C. Chapter 11 | View >

Effective Date: March 7, 2025

Additional Information:

• Governor’s Regulatory Review Council (GRRC) Study Session and Council Meeting Agendas, Meeting Documents, including PDF copies of materials provided to GRRC for rulemakings, and Minutes will be available on GRRC's website | Visit Website > 
  • GRRC Study Session: Jan. 28, 2025
  • GRRC Council Meeting: Feb. 5, 2025
• Hybrid Stakeholder Meeting — Aug. 14, 2024, 1 p.m.