---
kind: "section"
citation: "40 C.F.R. § 280.251"
title: "40"
number: "280.251"
heading: "General requirements."
url: "https://uscodex.org/cfr/40/280.251"
---

# §280.251. General requirements.

- (a) **Implementation of requirements.** Owners and operators must comply with the requirements of this part for UST systems with field-constructed tanks and airport hydrant systems as follows:
  - (1) For UST systems installed on or before October 13, 2015 the requirements are effective according to the following schedule:
  - (2) **For UST systems installed after October 13, 2015, the requirements apply at installation.**
- (b) Not later than October 13, 2018, all owners of previously deferred UST systems must submit a one-time notice of tank system existence to the implementing agency, using the form in appendix I of this part or a state form in accordance with [§ 280.22(c)](/cfr/40/280.22.md?p=c). Owners and operators of UST systems in use as of October 13, 2015 must demonstrate financial responsibility at the time of submission of the notification form.
- (c) Except as provided in [§ 280.252](/cfr/40/280.252.md), owners and operators must comply with the requirements of subparts [A](/cfr/40/subpartA.md) through [H](/cfr/40/subpartH.md) and J of this part.
- (d) In addition to the codes of practice listed in [§ 280.20](/cfr/40/280.20.md), owners and operators may use military construction criteria, such as Unified Facilities Criteria (UFC) 3-460-01, Petroleum Fuel Facilities, when designing, constructing, and installing airport hydrant systems and UST systems with field-constructed tanks.

## 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.