46 CFR § 151.03-13 - Cofferdam.

---
identifier: "/us/cfr/t46/s151.03-13"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 151.03-13 - Cofferdam."
title_number: 46
title_name: "Shipping"
section_number: "151.03-13"
section_name: "Cofferdam."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "CERTAIN BULK DANGEROUS CARGOES"
part_number: "151"
part_name: "BARGES CARRYING BULK LIQUID HAZARDOUS MATERIAL CARGOES"
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; 46 U.S.C. 3703; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGFR 70-10, 35 FR 3714, Feb. 25, 1970, unless otherwise noted."
cfr_part: "151"
---


# 151.03-13 Cofferdam.

This term means a void or empty space separating two or more compartments for the purpose of isolation or to prevent the contents of one compartment from entering another in the event of the failure of the walls of one to retain their tightness.