Learn more about ADEQ's active rulemakings, which are categorized by division as follows:

Air Quality

• New Source Review & PM_2.5 National Ambient Air Quality Standards | View >
• SIP Rules for Specific Locations — Miami SO₂ Nonattainment Area | View >
• SIP Rules for Specific Locations — Rillito PM₁₀ Nonattainment Area | View >
• Standards of Performance for Existing Sources: Oil and Natural Gas Sector | View >
• Stationary Source Performance Standards and National Emissions Standards for Hazardous Air Pollutants Update | View >
• Vehicle Emissions Program Update | View >
• Yuma PM₁₀ Moderate Nonattainment Area | View >

Water Quality

• Advanced Water Purification Implementation Update Rulemaking | View >
• Drinking Water Rule Updates to Conform to Federal Requirements | View >
• Minimum Design Criteria for Public Water Systems | View >
• Nonpoint Source Pollution: Remediation of Abandoned Hardrock Mines Impacting Streams, Rivers, and Lakes | View >
• Numeric Surface Water Quality Standards Update | View >
• Onsite Wastewater Treatment Facilities | View >
• State Incorporation by Reference of Federal Drinking Water Regulations | View >
• Upper Verde River Outstanding Arizona Water Nomination | View >
• Water Quality Fees CPI Adjustment (18 A.A.C. 14, Articles 1–3) | View >

Waste Programs

• Hazardous Waste Rule Update | View >
• Transfer Facility Design and Operation | View >
• Underground Storage Tanks 5YRR Commitments & Non-substantive Corrections | View >

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