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Tribal Underground Storage Tank Compliance Protocols

Following a successful three-year pilot program, the EPA adopted measures to improve compliance at Tribal underground storage tank (UST) facilities. The Tribal UST Compliance Protocols aim to achieve this goal through two key mechanisms: (1) ensuring Tribal governments are provided with information on, and notice of, announced inspections, and opportunities for consultation on compliance assistance, noncompliance, and possible enforcement responses; and (2) utilizing expedited enforcement tools when appropriate. These expedited tools result in a faster return to compliance and lower penalties than traditional enforcement.

  • Memorandum Announcing the Tribal UST Compliance Protocols (pdf) (268.39 KB)

  • Tribal UST Compliance Protocols (with attachments) (pdf) (705.88 KB)

  • Note that penalty documents referenced in the Protocols are subject to frequent revision. For current and applicable penalty amounts, please reference the most recent published documents: (1) the current UST enforcement penalty policy at Compliance and Enforcement Policy and Guidance; and (2) the current penalty inflation rules at Enforcement Policy, Guidance & Publications.

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Last updated on April 18, 2025
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