Mission & Purpose

Mission: Spill Prevention and Technical Assistance

Purpose: To provide technical information and guidance to assist storage tank owner/operator with:

  1. Development and implementation of preventative measures to reduce the potential for releases from underground storage tank systems, including measures operators can take to reduce the likelihood and minimize impact of spills during filling operations.
  2. Procedures for reporting releases or threats of a release from underground storage tanks (UST) or aboveground storage tanks (AST).
  3. Guidance for assessment and remediation during tank removal.
  4. Guidance for Homeowners with:
    • underground storage tanks for heating oil
    • release of heating oil from tank or piping
  5. Guidance for oil delivery professionals.
  6. Spill Prevention Contingency Plan development assistance for facilities with AST and/or UST.


  • Underground Storage Tank (UST) Program
    Effective January 2, 2015, new 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.

    The Massachusetts Legislature transferred most responsibility for UST regulation from the Department of Fire Services (DFS) to MassDEP in 2009. The new MassDEP rules replace DFS regulations at 527 CMR 9.00, which were rescinded on January 1, 2015, although the fundamentals of the program, including most basic DFS requirements, remain the same. MassDEP has also incorporated recent federal requirements and added new provisions to ensure that UST systems are properly installed, operated and maintained; that leaks and spills are prevented and contained; that UST systems and components found to be leaking or not working properly are repaired or replaced; and any resulting environmental damage is limited, assessed and cleaned up. Learn more about the new MassDEP regulations.
  • UST Query Tool - Records of UST-Related Leaks and Spills
  • Welcome to the Department of Revenue's Online Service Center for the Underground Storage Tank Program
    This unit oversees the operations of two programs: the Petroleum Product Cleanup Fund and the Cities and Towns Municipal Grants Program.
  • US EPA: Office of Underground Storage Tanks