40 CFR § 143.13 - § 143.13 Use prohibitions.

---
identifier: "/us/cfr/t40/s143.13"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 143.13 - §  143.13   Use prohibitions."
title_number: 40
title_name: "Protection of Environment"
section_number: "143.13"
section_name: "§  143.13   Use prohibitions."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "143"
part_name: "OTHER SAFE DRINKING WATER ACT REGULATIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 300f"
regulatory_source: "44 FR 42198, July 19, 1979, unless otherwise noted."
cfr_part: "143"
---


# 143.13 §  143.13   Use prohibitions.

(a) No person may use any pipe, any pipe or plumbing fitting or fixture, any solder or any flux that is not lead free as defined in §  143.12 in the installation or repair of:

(1) Any public water system; or

(2) Any plumbing in a residential or nonresidential facility providing water for human consumption.

(b) Paragraph (a) of this section shall not apply to leaded joints necessary for the repair of cast iron pipes.