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Underground Storage Tanks (USTs)
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Underground Storage Tank (UST) Technical Compendium about the 1988 UST Regulations

Revised Regulations

EPA revised the UST regulations in July 2015. Some of the information in this compendium may no longer apply because of those revisions.

This compendium contains EPA’s interpretations and guidance regarding the underground storage tank (UST) regulations issued in 1988. Questions and answers are presented in six general categories:

  • Applicability, Definitions, and Notification
  • New/Upgraded UST Systems
  • Release Detection
  • Release Investigation, Confirmation, and Corrective Action
  • Closure
  • Financial Responsibility
  • USTs Home
  • Learn About USTs
  • Meeting UST Requirements
  • Preventing and Detecting Releases
  • Cleaning Up Releases
  • Laws & Regulations
  • UST Program in Indian Country
  • Emerging Fuels and USTs
  • Frequent Questions
  • UST A - Z Subject Index
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 15, 2022
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