---
kind: "section"
citation: "46 C.F.R. § 169.631"
title: "46"
number: "169.631"
heading: "Separation of machinery and fuel tank spaces from accommodation spaces."
url: "https://uscodex.org/cfr/46/169.631"
---

# §169.631. Separation of machinery and fuel tank spaces from accommodation spaces.

- (a) Machinery and fuel tank spaces must be separated from accommodation spaces by watertight or vapor tight bulkheads of double diagonal wood, marine plywood, steel plate, or equivalent construction.
- (b) On vessels less than 90 feet in length, segregation may be by means of a watertight or vapor tight engine box.

## Notes

### Authority

Authority: 33 U.S.C. 1321(j); 46 U.S.C. 3306, 6101; Pub. L. 103-206, 107 Stat. 2439; E.O. 11735, 38 FR 21243, 3 CFR, 1971-1975 Comp., p. 793; DHS Delegation 00170.1, Revision No. 01.4; § 169.117 also issued under the authority of 44 U.S.C. 3507.

### Source

Source: CGD 83-005, 51 FR 896, Jan. 9, 1986, unless otherwise noted.