40 CFR § 438.13 - Effluent limitations attainable by application of the best control technology for conventional pollutants (BCT).

---
identifier: "/us/cfr/t40/s438.13"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 438.13 - Effluent limitations attainable by application of the best control technology for conventional pollutants (BCT)."
title_number: 40
title_name: "Protection of Environment"
section_number: "438.13"
section_name: "Effluent limitations attainable by application of the best control technology for conventional pollutants (BCT)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "438"
part_name: "METAL PRODUCTS AND MACHINERY 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: "68 FR 25735, May 13, 2003, unless otherwise noted."
cfr_part: "438"
---


# 438.13 Effluent limitations attainable by application of the best control technology for conventional pollutants (BCT).

Except as provided at 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitation representing the application of BCT: Limitations for TSS, O&G (as HEM) and pH are the same as the corresponding limitation specified at § 438.12.