Arizona Hazardous Waste Treatment regulations & environmental compliance analysis

Arizona Hazardous Waste Treatment: What you need to know

Governing Law and Regulations

Hazardous waste treatment rules: Arizona Administrative Code Rules (AZ Admin. Code R) 18-8-264(A) and AZ Admin. Code R 18-8-265(A) (interim status)

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Permitted treatment facilities:

Annual registration: Arizona Revised Statutes (AZ Rev. Stat.) 49-929

Interim-status facilities:

Containment systems for certain tanks: AZ Admin. Code R 18-8-265(J) (interim status)

Generator on-site treatment rules: AZ Admin. Code R 18-8-262(A)

Regulatory Agency

Arizona Department of Environmental Quality (ADEQ) Waste Programs Division

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Arizona adopts by reference the U.S. Environmental Protection Agency's (EPA) Hazardous Waste Generator Improvements Rule, effective in the state as of as of March 1, 2019, which includes standards that allow generators to treat hazardous waste on-site.

The state adopts by reference the federal hazardous waste treatment rules for both permitted and interim-status hazardous waste treatment, storage, and disposal facilities (TSDFs).

Administration and enforcement. The Arizona Department of Environmental Quality (ADEQ) administers and enforces the hazardous waste treatment requirements in Arizona.

State Requirements


Permits and Fees

The state has additional permit application requirements for hazardous waste treatment, storage, and disposal facilities (TSDFs), including those regarding the need for a disclosure statement and additional Part B information. In addition, the state requires fees in connection with the permit application, permit modifications, closure plans, and waste management. For guidance, see the state section TSDF PERMITS.


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