40 CFR § 439.43 - Effluent limitations attainable by the application of the best conventional pollutant control technology (BCT).

---
identifier: "/us/cfr/t40/s439.43"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 439.43 - Effluent limitations attainable by the application of the best conventional pollutant control technology (BCT)."
title_number: 40
title_name: "Protection of Environment"
section_number: "439.43"
section_name: "Effluent limitations attainable by the application of the best conventional pollutant control technology (BCT)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "439"
part_name: "PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342 and 1361."
regulatory_source: "48 FR 49821, Oct. 27, 1983, unless otherwise noted."
cfr_part: "439"
---


# 439.43 Effluent limitations attainable by the application of the best conventional pollutant control technology (BCT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BCT: Limitations for BOD<sub>5</sub>, TSS and pH are the same as the corresponding limitations in § 439.42.

[63 FR 50436, Sept. 21, 1998]