Montana Underground Storage Tank Program

tank installation in progress

Requesting Public Records and Information

The goal of the Montana Underground Storage Tank (UST) Leak Prevention Program is to protect human health and the environment by preventing releases of petroleum and hazardous substances from UST systems. The release of these regulated products into the environment threatens groundwater resources and can cause explosive vapors to seep into confined spaces and occupied dwellings.


The objectives of the UST Leak Prevention Program are to ensure that:
  1. UST systems are properly constructed and designed using recognized industry standards;
  2. installations, repairs and removals are conducted and inspected by qualified, trained and licensed individuals;
  3. active USTs are properly operated and monitored for releases;
  4. upon closure, USTs are properly decommissioned and sites assessed for contamination.

The objectives of the UST Leak Prevention Program are to ensure that:

The objectives of the UST Leak Prevention Program are to ensure that:

News Flash


EPA publishes new publication on corrosion study of steel and steel components of USTs storing diesel fuel.  For UST owners and operators who store diesel fuel, the Montana DEQ Underground Storage Tank Program highly recommends reading the EPA notice using the link below.


State rule requires owner(s) of underground storage tank facilities keep DEQ's Underground Storage Tank Program informed of any changes of information relative to their facility (e.g., facility name, owner(s), tanks, financial responsibility) within 30 days of the change.  Forms for this purpose are located at  

EPA Underground Storage Tank Flood Guide

2015 Federal Revised Underground Storage Tank Regulations - do not go into immediate effect in Montana, except for those located in Indian Country and administered by EPA.  See more information on Implementation here.

Annual Licensee Training Registration - to register online for the Training. Online registration starts December 1, 2017 and ends January 31, 2018.

eBill Payment Service - to pay your licensee renewal fee online

Lab Contact List, click on Resources, Other, Lab Contact List

Guidance for Disposal of Wastes Associated with Underground Storage Tank Removal     Brochure