US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 125 — CRITERIA AND STANDARDS FOR THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMSubpart A — Criteria and Standards for Imposing Technology-Based Treatment Requirements Under Sections 301(b) and 402 of the Act125.240 C.F.R. § 125.2Definitions.Last amended: 2016Year: 2026Length: 41 wordsOfficial source Cite as 40 C.F.R. § 125.2 (2026)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]Previous40 C.F.R. § 125.1Next40 C.F.R. § 125.3