MassDEP regulations on installation, operation, maintenance, inspection and assessment of USTs.

310 CMR 80.00: Underground Storage Tank (UST) Systems  pdf format of 310 CMR 80.00: UST Systems

These regulations were last amended in January 2015.

Contact for UST Help

Have questions? Need assistance? Call the UST Hotline at 617-556-1035, Extension 2, or email: DEP.UST@state.ma.us

310 CMR 80.00: Proposed Amendments & Public Comment

  • There are no proposed regulations out for public comment at this time.

310 CMR 80.00: Recently Promulgated Amendments

  • There have been no recent amendments to these regulations.

Underground Storage Tank (UST) Program

MassDEP Underground Storage Tank (UST) Regulations (310 CMR 80.00) address the registration, installation,
operation, maintenance, closure and inspection of petroleum fuel and hazardous substance UST systems.

UST Owner & Operator Information

Compliance and reporting requirements, third-party inspections, what to do if you find a leak and more.

UST Operator Certification Program

Each UST system must have at least one designated Class A, B and C Operator. Learn how to get certified.

Third-Party UST Inspection Program

UST owner/operators must have their tanks inspected every three years by MassDEP-approved third parties.

UST Compliance Certification

Owners/operators of UST facilities are required to submit Compliance Certifications every three years.The requirement took effect on November 1, 2015.

UST Online Filing, Forms & Help

Register underground storage tanks with MassDEP, notify the agency of changes in their status, and report the results of third-party inspections.

UST Facility Search

A searchable, sortable public database of underground storage tank facilities across Massachusetts. Learn about USTs in your neighborhood and the surrounding community.

Summary of Massachusetts UST Information

Review MassDEP data on active UST facilities in Massachusetts, UST system inspection findings, and confirmed product releases reported to the agency.

Contact for UST Help

Have questions? Need assistance? Call the UST Hotline at 617-556-1035, Extension 2, or email: DEP.UST@state.ma.us