46 CFR § 154.305 - Segregation of hold spaces from the sea.

---
identifier: "/us/cfr/t46/s154.305"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 154.305 - Segregation of hold spaces from the sea."
title_number: 46
title_name: "Shipping"
section_number: "154.305"
section_name: "Segregation of hold spaces from the sea."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "CERTAIN BULK DANGEROUS CARGOES"
part_number: "154"
part_name: "SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted."
cfr_part: "154"
---


# 154.305 Segregation of hold spaces from the sea.

In vessels having cargo containment systems required by this part to have a secondary barrier, hold spaces must be segregated from the sea by:

(a) A double bottom if the cargo tanks meet this part for design temperatures colder than −10 °C (14 °F); and

(b) Wing tanks if the cargo tanks meet this part for design temperatures colder than −55 °C (−67 °F).