---
kind: "section"
citation: "40 C.F.R. § 280.74"
title: "40"
number: "280.74"
heading: "Closure records."
url: "https://uscodex.org/cfr/40/280.74"
---

# §280.74. Closure records.


Owners and operators must maintain records in accordance with [§ 280.34](/cfr/40/280.34.md) that are capable of demonstrating compliance with closure requirements under this subpart. The results of the excavation zone assessment required in [§ 280.72](/cfr/40/280.72.md) must be maintained for at least three years after completion of permanent closure or change-in-service in one of the following ways:

- (a) By the owners and operators who took the UST system out of service;
- (b) By the current owners and operators of the UST system site; or
- (c) By mailing these records to the implementing agency if they cannot be maintained at the closed facility.

## 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.