Region 4 is the implementing agency for USTs in Indian Country. This document contains the closure guidelines in Indian Country under the UST program authority. Distributed to UST owners/operators in Indian Country.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Closure Assessment Guidelines for Underground Storage Tanks in Indian Country (PDF)(35 pp, 1 MB, August 2018)