California Closure/Post-Closure Plans: What you need to know

Governing Law and Regulations

Hazardous waste facility closure rules: 22 California Code of Regulations (CCR) 66264.110 to 66264.116 and 22 CCR 66265.110 to 66265.116 (interim status)

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Hazardous waste facility post-closure rules: 22 CCR 66264.117 to 66264.120 and 22 CCR 66265.117 to 66265.120 (interim status)

Closure rules: 22 CCR 66264.112

Notification: 22 CCR 66264.112(d)(1)

Start-up: 22 CCR 66264.112(d)(2)

Post-closure rules: 22 CCR 66264.117

Construction variance: 22 CCR 66264.117(f)

Facility-specific standards:

Landfills: 22 CCR 66264.310

Land treatment: 22 CCR 66264.280

Surface impoundments: 22 CCR 66264.228

Regulatory Agency

California Environmental Protection Agency (Cal/EPA) Department of Toxic Substances Control (DTSC)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Generally, California follows the federal rules for closure and post-closure rules of hazardous waste treatment, storage, and disposal facilities (TSDFs). However, the state has adopted more stringent requirements for notification, time allowed for closure, and disposal restrictions. In addition, the state requires a variance for any on-site post-closure construction activity and has additional closure and post-closure rules for specific TSDFs.

Administration and enforcement. Cal/EPA's DTSC enforces the TSDF closure and post-closure requirements in California.

State Requirements



22 CCR 66264.112(d)(1)

The federal rules require that a TSDF owner or operator notify EPA at least 45 or, in some cases, 60 days before closure begins. California has adopted the 45- and 60-day rules, but also retains ...

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State Requirements

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California Closure/Post-Closure Plans Resources

Closure/Post-Closure Plans Products

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