---
kind: "section"
citation: "46 C.F.R. § 189.40-1"
title: "46"
number: "189.40-1"
heading: "Definitions relating to hull examinations."
url: "https://uscodex.org/cfr/46/189.40-1"
---

# §189.40-1. Definitions relating to hull examinations.


As used in this part—

- (a) Drydock examination means hauling out a vessel or placing a vessel in a drydock or slipway for an examination of all accessible parts of the vessel's underwater body and all through-hull fittings.
- (b) Internal structural examination means an examination of the vessel while afloat or in drydock and consists of a complete examination of the vessel's main strength members, including the major internal framing, the hull plating, voids, and ballast tanks, but not including cargo or fuel oil tanks.
- (c) Underwater survey means the examination, while the vessel is afloat, of all accessible parts of the vessel's underwater body and all through-hull fittings.

## Notes

### Amendments

[CGD 84-024, 52 FR 39656, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 24, 1988; CGD 95-028, 62 FR 51220, Sept. 30, 1997]

### Authority

Authority: 46 U.S.C. 2113, 3306, 3307, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation 00170.1, Revision No. 01.2.

### Source

Source: CGFR 67-83, 33 FR 1118, Jan. 27, 1968, unless otherwise noted.

### Amendments

[CGD 84-024, 52 FR 39656, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 24, 1988; CGD 95-028, 62 FR 51220, Sept. 30, 1997]