40 CFR § 444.18 - Pretreatment standards for new sources (PSNS).

---
identifier: "/us/cfr/t40/s444.18"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 444.18 - Pretreatment standards for new sources (PSNS)."
title_number: 40
title_name: "Protection of Environment"
section_number: "444.18"
section_name: "Pretreatment standards for new sources (PSNS)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "444"
part_name: "WASTE COMBUSTORS 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 4381, Jan. 27, 2000, unless otherwise noted."
cfr_part: "444"
---


# 444.18 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any source that introduces wastewater pollutants into a POTW must comply with 40 CFR part 403 and achieve the following pretreatment standards: Standards for arsenic, cadmium, chromium, copper, lead, mercury, silver, titanium and zinc are the same as the corresponding limitation specified in § 444.16.

[65 FR 4381, Jan. 27, 2000; 65 FR 33423, May 23, 2000]