---identifier: "/us/cfr/t40/s410.01"source: "ecfr"legal_status: "authoritative_unofficial"title: "40 CFR § 410.01 - General definitions."title_number: 40title_name: "Protection of Environment"section_number: "410.01"section_name: "General definitions."chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"subchapter_number: "N"subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"part_number: "410"part_name: "TEXTILE MILLS POINT SOURCE CATEGORY"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"authority: "Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 186 Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217."regulatory_source: "47 FR 38819, Sept. 2, 1982, unless otherwise noted."cfr_part: "410"---
Identifier
/us/cfr/t40/s410.01
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Environmental Protection Agency
Authority
Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act o... Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 186 Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.
# 410.01 General definitions.In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part:(a) *Sulfide* shall mean total sulfide (dissolved and acid soluble) as measured by the procedures listed in 40 CFR part 136.(b) *Phenols* shall mean total phenols as measured by the procedure listed in 40 CFR part 136.(c) Total Chromium shall mean hexavalent and trivalent chromium as measured by the procedures listed in 40 CFR part 136.(d) The term *commission finishing* shall mean the finishing of textile materials, 50 percent or more of which are owned by others, in mills that are 51 percent or more independent (*i.e.*, only a minority ownership by company(ies) with greige or integrated operations); the mills must process 20 percent or more of their commissioned production through batch, noncontinuous processing operations with 50 percent or more of their commissioned orders processed in 5000 yard or smaller lots.(e) The term *product,* except where a specialized definition is included in the subpart, shall mean the final material produced or processed at the mill.