---
kind: "section"
citation: "46 C.F.R. § 108.181"
title: "46"
number: "108.181"
heading: "Ventilation for enclosed spaces."
url: "https://uscodex.org/cfr/46/108.181"
---

# §108.181. Ventilation for enclosed spaces.

- (a) Each enclosed space must be vented or ventilated.
- (b) There must be a means to close each vent or ventilating system.
- (c) Each fan in a ventilating system must have remote controls installed in accordance with [part 111](/cfr/46/part111.md), [subpart 111.103](/cfr/46/subpart111.103.md), of this chapter.
- (d) There must be a means to close each doorway, ventilator, and annular space around each funnel or other opening to machinery, stowage, or working spaces. The means must be located outside the space.
- (e) Each intake in a ventilating system must be located so as to prevent, as far as practicable, the intake of noxious fumes.

## Notes

### Amendments

[CGD 73-251, 43 FR 56808, Dec. 4, 1978, as amended by CGD 94-108, 61 FR 28270, June 4, 1996]

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 3102, 3306; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGD 73-251, 43 FR 56808, Dec. 4, 1978, unless otherwise noted.

### Amendments

[CGD 73-251, 43 FR 56808, Dec. 4, 1978, as amended by CGD 94-108, 61 FR 28270, June 4, 1996]