---
kind: "section"
citation: "40 C.F.R. § 280.91"
title: "40"
number: "280.91"
heading: "Compliance dates."
url: "https://uscodex.org/cfr/40/280.91"
---

# §280.91. Compliance dates.


Owners of petroleum underground storage tanks must comply with the requirements of this subpart. Previously deferred UST systems must comply with the requirements of this subpart according to the schedule in [§ 280.251(a)](/cfr/40/280.251.md?p=a).


## Notes

### Authority

Authority: 42 U.S.C. 6912, 6991, 6991(a), 6991(b), 6991(c), 6991(d), 6991(e), 6991(f), 6991(g), 6991(h), 6991(i).

### Source

Source: 80 FR 41623, July 15, 2015, unless otherwise noted.