---
kind: "section"
citation: "46 C.F.R. § 182.435"
title: "46"
number: "182.435"
heading: "Integral fuel tanks."
url: "https://uscodex.org/cfr/46/182.435"
---

# §182.435. Integral fuel tanks.

- (a) Gasoline fuel tanks must be independent of the hull.
- (b) Diesel fuel tanks may not be built integral with the hull of a vessel unless the hull is made of:
  - (1) Steel;
  - (2) Aluminum; or
  - (3) **Fiber reinforced plastic when—**
    - (i) Sandwich construction is not used; or
    - (ii) Sandwich construction is used with only a core material of closed cell polyvinyl chloride or equivalent.
- (c) During the initial inspection for certification of a vessel, integral fuel tanks must withstand a hydrostatic pressure test of 35 kPa (5 psig), or the maximum pressure head to which they may be subjected in service, whichever is greater. A standpipe of 3.5 meters (11.5 feet) in height attached to the tank may be filled with water to accomplish the 35 kPa (5 psig) test.

## Notes

### Amendments

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 30, 1997]

### Authority

Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGD 85-080, 61 FR 986, Jan. 10, 1996, unless otherwise noted.

### Amendments

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 30, 1997]