Colorado Used Oil Management regulations & environmental compliance analysis

Colorado Used Oil Management: What you need to know

Governing Law and Regulations

Used oil management rules: 6 Code of Colorado Regulations (CCR) 1007-3 Sections 279.1 to 279.81

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Mixtures: 6 CCR 1007-3 Section 279.10(b)(2)(ii)

Containers stored outdoors: 6 CCR 1007-3 Section 279.22(b)(3)

Regulatory Agency

Colorado Department of Public Health and Environment (CDPHE) Office of Environment Hazardous Materials and Waste Management Division 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. Colorado follows the federal used oil management rules and has added a provision for mixtures of used oil and characteristic hazardous waste as well as for containers of used oil stored outdoors.

Administration and enforcement. CDPHE's Hazardous Materials and Waste Management Division administers and enforces the used oil management rules in Colorado.

State Requirements


6 CCR 1007-3 Section 279.10(b)(2)(ii)

When Colorado adopted the federal used oil rules in 1994, it adopted the federal rule known as the "used oil mixture rule." This federal rule allows a mixture of used oil and a hazardous waste that exhibits a characteristic of hazardous waste to be regulated as used oil provided the resultant mixture does not exhibit any hazardous waste characteristic. However, Colorado has added what it calls "clarification language" to require that any such mixture that results from an intention to avoid managing the mixture as a hazardous waste will be deemed to be "treatment" of the hazardous waste necessitating a hazardous waste treatment permit.

See Mixtures of Used Oil and Hazardous Waste in the ...

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