33 CFR § 158.500 - Draining cargo area and piping systems.

---
identifier: "/us/cfr/t33/s158.500"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 158.500 - Draining cargo area and piping systems."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "158.500"
section_name: "Draining cargo area and piping systems."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "POLLUTION"
part_number: "158"
part_name: "RECEPTION FACILITIES FOR OIL, NOXIOUS LIQUID SUBSTANCES, AND GARBAGE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1903(b), 1905(c); 49 CFR 1.46."
cfr_part: "158"
---


# 158.500 Draining cargo area and piping systems.

The person in charge shall ensure that each cargo hose and each piping system containing NLS received from each oceangoing ship carrying NLS cargo is not drained back into the ship.