---
kind: "section"
citation: "46 C.F.R. § 178.450"
title: "46"
number: "178.450"
heading: "Calculation of drainage area for cockpit and well deck vessels."
url: "https://uscodex.org/cfr/46/178.450"
---

# §178.450. Calculation of drainage area for cockpit and well deck vessels.

- (a) The drainage area required on a vessel must be computed using the following formula:
- (b) Vessels with bulwarks in the forward part of the vessel shall not form a well with the deckhouse which retains water.

## Notes

### Amendments

[CGD 85-080, 61 FR 966, Jan. 10, 1996; 61 FR 20557, May 7, 1996; USCG-2022-0323, 88 FR 10032, Feb. 16, 2023 ]

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 2103, 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGD 85-080, 61 FR 966, Jan. 10, 1996, unless otherwise noted.

### Amendments

[CGD 85-080, 61 FR 966, Jan. 10, 1996; 61 FR 20557, May 7, 1996; USCG-2022-0323, 88 FR 10032, Feb. 16, 2023 ]