Maryland Hazardous Waste Tanks regulations & environmental compliance analysis

Maryland Hazardous Waste Tanks: What you need to know

Governing Law and Regulations

Hazardous waste tank rules: Code of Maryland Regulations (COMAR) to and COMAR (interim status)

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Management of generator hazardous waste accumulation tanks: COMAR

Labeling generator hazardous waste accumulation tanks: COMAR

Waste analysis and trial tests: COMAR

Returning repaired tanks to service: COMAR

Inspections: COMAR

Organic air emissions rules: COMAR; 40 CFR 264 Subparts AA, BB, and CC; and 40 CFR 265 Subparts AA, BB, and CC

Regulatory Agencies

Maryland Department of the Environment (MDE) Land Management Administration Hazardous Waste Program

U.S. Environmental Protection Agency (EPA) Region 3

Comparison: State vs. Federal

Rules. Maryland has adopted the U.S. Environmental Protection Agency's (EPA) Hazardous Waste Generator Improvements Rule, effective in Maryland as of May 3, 2021, which includes standards for generators accumulating hazardous waste on-site in tanks. To the federal tank rules, Maryland has added state requirements in connection with waste analysis and trial tests, returning a repaired tank system to service, inspections, and organic air emissions standards. Owners and operators of permitted hazardous waste tanks are responsible for paying permit fees.

Administration and enforcement. The Maryland Department of the Environment’s (MDE) Waste Management Administration administers and enforces the hazardous waste tank requirements in Maryland. The federal organic air emissions standards are enforced in Maryland by EPA's Region 3 office.

State Requirements



Maryland has additional requirements ...

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Maryland Hazardous Waste Tanks Resources

Type Title
Checklists TSDF Tank System Inspection Form (EQP 5192)
Forms Daily Tank Inspection Log
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