The owners/operators of most underground storage tank (UST) systems in Massachusetts are required to have those systems and their components inspected every three years by Third-Party Inspectors (TPIs). Hired directly by tank owner/operators, these professionals document the results of their on-site inspections, review facility record keeping to ensure it meets UST Program requirements, and report their inspection findings to the Department of Environmental Protection (MassDEP) via the nSPECT Online Filing System . While TPIs provide compliance advice to their clients, they are not authorized to enforce laws or regulations.
 

Regulations & Policies
Third-Party Inspector Qualifications
Facility Inspections & Reporting
Contact Information

Regulations & Policies

Third-Party Inspector Qualifications

  • MassDEP UST Third-Party Inspector Certification Program
    This program ensures that those responsible for inspecting UST systems have the necessary knowledge and understanding of how these systems work. Qualified individuals are certified for five years and need to apply for renewal at least 90 days before their current certifications expire. 
  • International Code Council (ICC)
    Obtaining specific ICC certifications is a prerequisite for qualifying as a UST third-party inspector in Massachusetts.
  • Third-Party UST Inspector Lookup
    A searchable, sortable public database of individuals qualified to perform third-party inspections in Massachusetts.

Facility Inspections & Reporting

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