Summary:

ADEQ has initiated a rulemaking to adopt rules applicable to the Yuma PM₁₀ Moderate Nonattainment Area (NAA). The purpose of these rules is to reduce fugitive dust emissions that contribute to PM₁₀ levels in the area that exceed the National Ambient Air Quality Standard (NAAQS). The Clean Air Act requires ADEQ to develop a State Implementation Plan (SIP) revision to control PM₁₀ in Yuma as a result of a SIP Call from the U.S. Environmental Protection Agency (EPA) published on May 17, 2022.

ADEQ is currently conducting a stakeholder process to obtain feedback on draft rules from the public before formal proposal. Details follow.

Documents:

• Notice of Docket Opening | View 2025 >
• Notice of Docket Opening | View 2026 >
• Notice of Proposed Rulemaking | View NPRM >
• Notice of Comment Period & Public Hearing | View Notice >
  • Comment Period: Oct. 9, 2026 – Nov. 9, 2026
  • Public Hearing:
    • Date: Nov. 9, 2026
    • Time: 11 a.m. (MST - Arizona)
    • Location: Yuma County Main Library
      2951 S. 21st Drive Yuma, AZ 85364

Additional Information:

• EPA Call for Attainment Plan Revision for the Yuma PM₁₀ Moderate NAA | View SIP Call >
• ADEQ is currently accepting and considering input on the Yuma PM₁₀ Draft Agricultural Rule before ADEQ publishes a Notice of Proposed Rulemaking in the Arizona Administrative Register | Review Background & Materials >
• You can submit input:
  • By email | Email >
  • Or by registering and providing feedback at the following virtual stakeholder meeting:
    • Agriculture Draft Rule | Feb. 5, 2026, 1 –  2:30 p.m. | View Meeting Details & Register >
• Criteria Pollutant SIPs (information about PM₁₀ and other criteria pollutants) | View Criteria Pollutants >