46 CFR § 122.330 - Hatches and other openings.

---
identifier: "/us/cfr/t46/s122.330"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 122.330 - Hatches and other openings."
title_number: 46
title_name: "Shipping"
section_number: "122.330"
section_name: "Hatches and other openings."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "K"
subchapter_name: "SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS"
part_number: "122"
part_name: "OPERATIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 2103, 3306, 6101; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.2, paragraph (II)(92)(a)."
regulatory_source: "CGD 85-080, 61 FR 935, Jan. 10, 1996, unless otherwise noted."
cfr_part: "122"
---


# 122.330 Hatches and other openings.

(a) Except when operating on lakes, bays, and sounds, or river routes in calm weather, all hatches and openings in the hull, except loading doors, of a vessel must be kept tightly closed except when being used.

(b) All watertight doors in subdivision bulkheads must be kept tightly closed during the navigation of the vessel except when being used for transit between compartments.