An official website of the United States government.

Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Underground Storage Tanks (USTs)

Contact Us

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:

Contact Us to ask a question, provide feedback, or report a problem.

Microsite Home