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Underground Storage Tank Technical Compendium

This compendium contains interpretations and guidance regarding the underground storage tank (UST) regulations issued in 1988. In 2015, EPA revised the UST regulations. Some of the information in this compendium may no longer apply because of changes in the 2015 UST regulations.

The compendium contains interpretations and guidance letters sent out by the Office of Underground Storage Tanks. The major category headings are:

  1. Applicability, Definitions, and Notification (ADN)
  2. New/Upgraded UST Systems (NUS)
  3. Release Detection (RD)
  4. Release Investigation, Confirmation, and Corrective Action (RICC)
  5. Closure (CL)
  6. Financial Responsibility (FR)

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