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RuleMaking | AZPDES Incorporate Federal Rules

Active Rulemaking

AZPDES - Incorporation of Federal Rules


ADEQ is amending Arizona Administrative Code (A.A.C.) Title 18, Chapter 9, Article 9 by expedited rulemaking. The amendments are limited to incorporating federal rules by reference, correcting typographical errors, and clarifying language of a rule without changing its effect, specifically: R18-9-A905 will be amended to incorporate by reference the most updated federal pretreatment regulations; citation errors in R18-9-A905(B)(4) and R18-9-B901(B)(1)(a) will be corrected; and R18-9-B904 will be amended to clarify there are no state National Pollutant Discharge Elimination System (NPDES) permits.

In 2005, the EPA issued a Pretreatment Streamlining Rule, which revised several provisions of the General Pretreatment Regulations (40 CFR, Part 403). See 70 FR 60134 (Oct. 14, 2005). The Pretreatment Program requires industrial dischargers to use treatment techniques and management practices to reduce or eliminate the discharge of harmful pollutants to sanitary sewers. The Pretreatment Streamlining Rule was designed to reduce the overall regulatory burden on both Industrial Users (IUs) and Control Authorities without adversely affecting environmental protection. As a result of the federal rule changes, various Code of Federal Regulations (CFR) references in 18 A.A.C. Chapter 9 are no longer current as the references rely on the provisions of the 2003 version of CFR.


  • Notice of Docket Opening | View >
  • Notice of Proposed Expedited Rulemaking | View >
    • Comment Period: Sept. 2, 2022 – Oct. 7, 2022
    • Extended Comment Period: May 30, 2023 – June 30, 2023

Where can I find Public Notices, and how do I comment?

ADEQ provides notice of physical and electronic locations where all public policies, including the meeting agenda of the agency's public bodies, are posted.

All electronic public notices are here on our website | View Notices >

Learn about the Public Comments Process | View > 

In addition, ADEQ physically posts public notices on the bulletin board located on the First Floor elevator breezeway of the Phoenix office located at:

1110 W. Washington Street
Phoenix, AZ 85007

In accordance with Laws 2010, Second Regular Session, Chapter 88, Section 2 (HB2209) and Arizona Revised Statutes (ARS) § 38-431.02