40 CFR § 414.75 - Pretreatment standards for existing sources (PSES).

---
identifier: "/us/cfr/t40/s414.75"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 414.75 - Pretreatment standards for existing sources (PSES)."
title_number: 40
title_name: "Protection of Environment"
section_number: "414.75"
section_name: "Pretreatment standards for existing sources (PSES)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "414"
part_name: "ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 301, 304, 306, 307, and 501, Pub. L. 92-500, 86 Stat. 816, Pub. L. 95-217, 91 Stat. 156, Pub. L. 100-4, 101 Stat. 7 (33 U.S.C. 1311, 1314, 1316, 1317, and 1361)."
regulatory_source: "52 FR 42568, Nov. 5, 1987, unless otherwise noted."
cfr_part: "414"
---


# 414.75 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve discharges in accordance with § 414.111.

[58 FR 36892, July 9, 1993]