---
kind: "section"
citation: "46 C.F.R. § 154.330"
title: "46"
number: "154.330"
heading: "Openings to accommodation, service, or control spaces."
url: "https://uscodex.org/cfr/46/154.330"
---

# §154.330. Openings to accommodation, service, or control spaces.

- (a) Entrances, forced or natural ventilation intakes and exhausts, and other openings to accommodation, service, or control spaces, except as allowed in [paragraph (c)](#c) of this section, must be:
  - (1) At least L/25 or 3.05m (10 ft) from the athwartship bulkhead facing the cargo area, whichever is farther, except that the distance need not exceed 5m (16.4 ft); and
  - (2) **On a house athwartship bulkhead not facing the cargo area or on the outboard side of the house.**
- (b) Each port light, located on the athwartship bulkhead of a house facing the cargo area or the house sides within the distance specified in [paragraph (a)(1)](#a-1) of this section, must be a fixed type.
- (c) Wheelhouse doors and windows that are not fixed may be within the distance specified in [paragraph (a)(1)](#a-1) of this section from the athwartship bulkhead of a house facing the cargo area, if they have gaskets and pass a tightness test with a fire hose at not less than 207 kPa gauge (30 psig).
- (d) Port lights in the hull plating below the uppermost continuous deck and in the first tier of the superstructure must be a fixed type.
- (e) Air intakes and openings into accommodation, service, and control spaces must have metal closures that pass a tightness test with a fire hose at not less than 207 kPa gauge (30 psig).
- (f) On liquefied toxic gas vessels, the closures required in [paragraph (e)](#e) of this section must be capable of being closed from inside the space.

## Notes

### Authority

Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.