Missouri Hazardous Waste Determination regulations & environmental compliance analysis

Missouri Hazardous Waste Determination: What you need to know

Governing Law and Regulations

Identification and classification of hazardous waste: 10 Missouri Code of State Regulations (CSR) 25-4.261(1) and 10 CSR 25-4.261(2)

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Solid waste exclusions: 10 CSR 25-4.261(2)(A)

Hazardous waste exclusions: 10 CSR 25-4.261(2)(A)

Regulatory Agency

Missouri Department of Natural Resources (DNR) Division of Environmental Quality Hazardous Waste Program

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Missouri adopts by reference the federal regulations for identifying and classifying hazardous waste, including the federal rule that conditionally excludes cathode-ray tubes from the definition of solid waste. The state has additional regulations in connection with exclusions from the solid waste and hazardous waste definitions.

Missouri is in the process of adopting the conditional exclusions from the definitions of solid and hazardous waste for solvent-contaminated wipes. Check with of the Missouri Department of Natural Resources (DNR) to see if these rules have been adopted.

Administration and enforcement. The Division of Environmental Quality of the DNR administers and enforces hazardous waste identification and classification in Missouri.

State Requirements


Missouri has substantially adopted the federal regulations for identifying and classifying hazardous waste, but has modified a few federal rules to make the state identification and classification process more stringent while not adopting federal rules that would make Missouri's less stringent. Because the state incorporates by reference the requirements of 40 CFR 261 through July 1, 2013, the ...

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