40 CFR § 125.2 - Definitions.

---
identifier: "/us/cfr/t40/s125.2"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 125.2 - Definitions."
title_number: 40
title_name: "Protection of Environment"
section_number: "125.2"
section_name: "Definitions."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "125"
part_name: "CRITERIA AND STANDARDS FOR THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "The Clean Water Act, 33 U.S.C. 1251  unless otherwise noted."
regulatory_source: "44 FR 32948, June 7, 1979, unless otherwise noted."
cfr_part: "125"
---


# 125.2 Definitions.

For the purposes of this part, any reference to *the Act* shall mean the Clean Water Act of 1977 (CWA). Unless otherwise noted, the definitions in parts 122, 123 and 124 apply to this part.

[45 FR 33512, May 19, 1980]