---
kind: "section"
citation: "46 C.F.R. § 45.51"
title: "46"
number: "45.51"
heading: "Types of ships."
url: "https://uscodex.org/cfr/46/45.51"
---

# §45.51. Types of ships.

- (a) **For the purpose of this subpart, a type A vessel has—**
  - (1) No cargo ports or similar sideshell openings below the freeboard deck;
  - (2) Only small freeboard deck openings fitted with watertight gasketed hatch covers of steel;
  - (3) No dimension of a freeboard deck cargo opening greater than 6 feet and the total area not exceeding 18 ft 2; and
  - (4) **No more than two freeboard deck cargo openings to a single cargo space.**
- (b) For the purposes of this subpart a type B vessel is a vessel that does not meet the requirements in [paragraph (a)](#a) of this section.

## Notes

### Authority

Authority: 46 U.S.C. 5104, 5108; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 73-49R, 38 FR 12290, May 10, 1973, unless otherwise noted.