46 CFR § 78.15-1 - Subdivision bulkheads.

---
identifier: "/us/cfr/t46/s78.15-1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 78.15-1 - Subdivision bulkheads."
title_number: 46
title_name: "Shipping"
section_number: "78.15-1"
section_name: "Subdivision bulkheads."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "H"
subchapter_name: "PASSENGER VESSELS"
part_number: "78"
part_name: "OPERATIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321(j); 46 U.S.C. 2103, 3306, 6101; 49 U.S.C. 5103, 5106; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGFR 65-50, 30 FR 16955, Dec. 30, 1965, unless otherwise noted."
cfr_part: "78"
---


# 78.15-1 Subdivision bulkheads.

(a) All watertight doors in subdivision bulkheads shall be kept closed during navigation except when necessarily opened for working of the vessel, and in such cases they shall always be ready to be immediately closed.

(b) [Reserved]