Above-ground Fuel Storage Tank Inspections: Montana

In Montana, above-ground fuel storage tanks are typically regulated by the Montana Department of Environmental Quality (MDEQ) under the Administrative Rules of Montana (ARM) Title 17, Chapter 56. This chapter sets out the requirements for the design, installation, operation, and maintenance of above-ground storage tanks (ASTs) that contain petroleum or other hazardous substances.

Specifically, ARM 17.56.502 requires that all regulated ASTs must be inspected at least once every three years by a qualified inspector. The inspector must be certified by the Steel Tank Institute (STI) or the American Petroleum Institute (API), or have equivalent qualifications approved by MDEQ. The inspection must include an examination of the tank and associated piping, as well as non-destructive testing of the tank shell and bottom.

In addition to the periodic inspections, ARM 17.56.503 requires that all regulated ASTs must be maintained in a safe and operable condition at all times. This includes regular monitoring for leaks, corrosion, and other signs of damage, as well as promptly repairing or replacing any damaged components.

It’s important to note that the specific requirements for above-ground fuel storage tank inspections and maintenance in Montana can vary depending on the type of tank and the product being stored, so it’s important to check with MDEQ to ensure that you are in compliance with all applicable regulations.

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