An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Underground Storage Tanks (USTs)

Requirements For Field-Constructed Tanks And Airport Hydrant Systems

(EPA 510-K-17-002). October 2017.

This 39-page booklet summarizes the 2015 federal UST requirements specific to UST systems with field-constructed tanks and airport hydrant fuel distribution systems.  It discusses installation, reporting, spill and overfill prevention, corrosion protection, release detection, walkthrough inspections, compatibility, operator training, repairs, financial responsibility, release response, and closure. 

For information regarding airport hydrant systems related to Department of Defense facilities, see 2015 UST Technical Compendium.

Requirements for Field-Constructed Tanks and Airport Hydrant Systems (DOCX)(43 pp, 6 MB, October 2017, EPA 510-K-17-002)

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.