40 CFR § 451.23 - Effluent limitations attainable by the application of the best conventional technology (BCT).

---
identifier: "/us/cfr/t40/s451.23"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 451.23 - Effluent limitations attainable by the application of the best conventional technology (BCT)."
title_number: 40
title_name: "Protection of Environment"
section_number: "451.23"
section_name: "Effluent limitations attainable by the application of the best conventional technology (BCT)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "451"
part_name: "CONCENTRATED AQUATIC ANIMAL PRODUCTION POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 135  136-136y; 15 U.S.C. 2001, 2003, 2005, 2006, 2601-2671, 21 U.S.C. 331j, 346a, 348; 31 U.S.C. 9701; 33 U.S.C. 1251  1311, 1313d, 1314, 1318, 1321, 1326, 1330, 1342, 1344, 1345(d) and (e), 1361; 42 U.S.C. 241, 242b, 243, 246, 300f, 300g, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-2, 300j-3, 300j-4, 300j-9, 1857  6901-6992k, 7401-7671q, 7542, 9601-9657, 11023, 11048; E.O. 11735, 38 FR 21243, 3 CFR, 1971-1975 Comp., 973."
regulatory_source: "69 FR 51927, Aug. 23, 2004, unless otherwise noted."
cfr_part: "451"
---