UST Notification and Registration

UST Owners/Operators Must Notify the DEQ when:
  • Installing New Underground Storage Tanks or Piping
  • Changing Facility Ownership
  • Placing a Tank into Active Status
  • Changing of Owner Address
  • Changing the substance in a tank
  • If there is a change in ownership or owner information, please complete the Notification for Underground Storage Tanks form below and submit it to the department within 30 days.
    • Notification for Underground Storage Tanks (Owner Change Only)
  • The owner of each regulated underground storage tank (or above-ground storage tank with underground piping) must submit a Notification of Underground Storage Tanks form to the department within 30 days of bringing the UST into use. This form must also be completed each time a modification is made to the system which alters the existing information.
    • Notification for Underground Storage Tanks (Complete Form)

    UST Owners/Operators Must Submit Annual Tank Registration Fees

    Owners and operators of UST systems which have not been properly closed according to Administrative Rules of Montana (ARM) 17.56.702 must pay an annual tank registration fee to the department for each tank owned or operated by the owner or operator. This tank registration fee is $36 for USTs 1,100 gallons or less capacity and $108 for USTs over 1,100 gallons capacity. Above-ground storage tanks (ASTs) with underground piping are subject to the same registration fees based on the AST size. Tank registration fees are handled by the Department of Revenue's One Stop program, you may contact them at (406) 444-6900.