Image of Underground Storage Tanks
MassDEP Underground Storage Tank (UST) Regulations (310 CMR 80.00) address the registration, installation, operation, maintenance, closure and inspection of UST systems used to store petroleum fuels and hazardous substances. The UST program is a major component of the state's groundwater resource protection efforts.

News & Updates

Facility Owners & Operators

Third-Party Inspections & Inspectors

Online Filing & Forms

Regulations & Policies

USTs in Massachusetts

  • 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.