Oklahoma Hazardous Waste Storage regulations & environmental compliance analysis

Oklahoma Hazardous Waste Storage: What you need to know

Governing Law and Regulations

Container, storage tank, and surface impoundment requirements: Oklahoma Administrative Code (OAC) 252:205-3-2(f) and OAC 252:205-3-2(g) (interim status)

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Generator on-site storage rule: OAC 252:205-3-2(d)

Regulatory Agency

Oklahoma Department of Environmental Quality (DEQ) Land Protection Division Hazardous Waste Compliance and Inspection Section

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Oklahoma adopts by reference the U.S. Environmental Protection Agency's (EPA) Hazardous Waste Generator Improvements Rule, effective in Oklahoma as of September 15, 2018, which includes standards that allow generators to accumulate hazardous waste on-site without a permit for specific periods of time.

The state adopts by reference the federal storage rules for both permitted and interim-status hazardous waste treatment, storage, and disposal facilities (TSDFs). In addition, Oklahoma has more stringent state hazardous waste storage rules in connection with permits and fees for hazardous waste storage facilities.

Administration and enforcement. The Oklahoma Department of Environmental Quality's (DEQ) Land Protection Division administers and enforces the hazardous waste storage rules in Oklahoma.

State Requirements


Oklahoma's permit and operation requirements for hazardous waste storage facilities include the federal standards plus the state's additional requirements in connection with the permitting process, permit conditions, and on-site inspectors. Unlike the federal rules, Oklahoma requires storage facilities to pay various fees, including a permit application fee and an annual monitoring fee. For additional ...

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