Oklahoma Biennial Report regulations & environmental compliance analysis

Oklahoma Biennial Report: What you need to know

Governing Law and Regulations

Biennial reporting requirements: Oklahoma Administrative Code (OAC) 252:205-3-2(d), OAC 252:205-3-2(f), and OAC 252:205-3-2(g) (interim status)

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Hazardous waste large quantity generator (LQG) quarterly reporting requirements: OAC 252:205-5-3

Hazardous waste treatment, storage, and disposal facility (TSDF) monthly reporting requirements: OAC 252:205-9-2

Regulatory Agencies

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

U.S. Environmental Protection Agency (EPA) Region 6

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Oklahoma incorporates by reference the federal biennial reporting requirements for reporting hazardous waste. DEQ also requires quarterly reports for large quantity generators (LQGs) generating hazardous waste within the state and monthly reports for TSDFs.

Administration and enforcement. DEQ's Land Protection Division administers and enforces the state's quarterly reporting requirements, while EPA's Region 6 office administers and enforces the federal biennial report requirements.

State Requirements


OAC 252:205-3-2(d), OAC 252:205-3-2(f), and OAC 252:205-3-2(g)

LQGs and owners and operators of TSDFs must submit biennial reports each even-numbered year. The deadline for reporting is March 1. The state biennial report form mirrors the federal reporting form, and is available from DEQ.

See the national section BIENNIAL REPORT for a review of the federal reporting requirements.


OAC 252:205-5-3

In addition, DEQ requires quarterly reports from all ...

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