---
kind: "section"
citation: "46 C.F.R. § 69.175"
title: "46"
number: "69.175"
heading: "Tonnage assignments for vessels with a second deck."
url: "https://uscodex.org/cfr/46/69.175"
---

# §69.175. Tonnage assignments for vessels with a second deck.

- (a) At the option of the vessel owner, a vessel having a second deck is assigned either two gross and two net register tonnages or one gross and one net register tonnage corresponding to the lower gross and net register tonnages.
- (b) If two gross and two net register tonnages are assigned, the higher tonnages (i.e. those based only on exemptions under [§ 69.169 (a) through (d)](/cfr/46/69.169.md?p=a..d)) are applicable when the upper edge of the tonnage mark is submerged and the lower tonnages (i.e. those based only on all exemptions under [§ 69.169](/cfr/46/69.169.md)) are applicable when the upper edge of the tonnage mark is not submerged.
- (c) If only the low gross and low net register tonnages, as calculated under [paragraph (b)](#b) of this section, are assigned, these tonnages are applicable at all times. On these vessels, a load line must be assigned at a level below the line of the second deck, and the tonnage mark must be located in accordance with [§ 69.177(a)(6)](/cfr/46/69.177.md?p=a-6) at the level of the uppermost part of the load line grid.

## Notes

### Amendments

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18731, Mar. 31, 2016]

### Authority

Authority: 46 U.S.C. 2301, 14103, 14104; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 87-015b, 54 FR 37657, Sept. 12, 1989, unless otherwise noted.

### Amendments

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18731, Mar. 31, 2016]