---
kind: "section"
citation: "46 C.F.R. § 69.115"
title: "46"
number: "69.115"
heading: "Excess hatchway tonnage."
url: "https://uscodex.org/cfr/46/69.115"
---

# §69.115. Excess hatchway tonnage.

- (a) Hatchways that are above the tonnage deck and are either open to the weather or within open structures are measured to determine excess hatchway tonnage. Hatchways that are in between-deck spaces, on decks within closed-in structures, or on open structures are not measured.
- (b) **The tonnage of a hatchway is its length times breadth times mean depth divided by 100.** Mean depth is measured from the under side of the hatch cover to the top of the deck beam.
- (c) From the sum of the tonnage of the hatchways under this section, subtract one-half of one percent of the vessel's gross register tonnage exclusive of the hatchway tonnage. The remainder is added as excess hatchway tonnage in calculating the gross register tonnage.

## Notes

### Amendments

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18727, 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 18727, Mar. 31, 2016]