Governing Law and Regulations
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.
PERMITTED TREATMENT FACILITIES
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.