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 Arizona as of March 1, 2019, which includes the federal contingency plan requirements for large quantity generators (LQGs). The state follows the federal rules for hazardous waste treatment, storage, and disposal facility (TSDF) contingency plans. The state adds a state notification requirement, as well as additional information for the report that is part of the notification.
• Administration and enforcement. The Arizona Department of Environmental Quality (ADEQ) administers and enforces the contingency plan rules in Arizona.