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
- UST Regulations & Policies
MassDEP UST and site/spill assessment cleanup rules, UST closure assessment manual, and more.
- Frequently Asked Questions: 310 CMR 80.00
Updated in April 2016 to include revisions to the section on monthly visual inspections.
- Presentation: MassDEP UST Third-Party Inspector Workshops, Winter 2015
file size 2MBCovers the January 2015 amendments to the agency's UST program regulations.
Third-Party Inspector Qualifications
- UST/TPI: Third-Party Inspector Certification/Renewal
Apply for MassDEP certification as an underground storage tank (UST) Third-Party Inspector. 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
- UST nSPECT
Online reporting system for UST third-party inspectors.
- How to Look Up UST Facility Third-Party Inspection Due Dates
Instructions for accessing real-time information via the UST Data Management System.