40 CFR § 445.23 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

---
identifier: "/us/cfr/t40/s445.23"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 445.23 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)."
title_number: 40
title_name: "Protection of Environment"
section_number: "445.23"
section_name: "Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "445"
part_name: "LANDFILLS POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 301, 304, 306, 307, 308, 402 and 501 of the Clean Water Act, as amended (33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342 and 1361)"
regulatory_source: "65 FR 3048, Jan. 19, 2000, unless otherwise noted."
cfr_part: "445"
---


# 445.23 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30-125.32, any existing point source subject to this subpart must achieve the following effluent limitations which represent the application of BAT: Limitations for ammonia (as N), a-terpineol, benzoic acid, p-cresol, phenol and zinc are the same as the corresponding limitations specified in § 445.21.