---
kind: "section"
citation: "40 C.F.R. § 123.2"
title: "40"
number: "123.2"
heading: "Definitions."
url: "https://uscodex.org/cfr/40/123.2"
---

# §123.2. Definitions.


The definitions in [part 122](/cfr/40/part122.md) apply to all subparts of this part.


## Notes

### Amendments

[63 FR 45122, Aug. 24, 1998]

### Authority

Authority: Clean Water Act, 33 U.S.C. 1251 et seq.

### Source

Source: 48 FR 14178, Apr. 1, 1983, unless otherwise noted.

### Amendments

[63 FR 45122, Aug. 24, 1998]