---
kind: "section"
citation: "46 C.F.R. § 45.123"
title: "46"
number: "45.123"
heading: "Freeing port area: Changes for bulwark height."
url: "https://uscodex.org/cfr/46/45.123"
---

# §45.123. Freeing port area: Changes for bulwark height.

- (a) For the purposes of freeing port area only, bulwark height is considered standard at 24 in for ships 240 ft in length and less; and 48 in for ships 480 ft in length or greater. The standard bulwark height for ships of intermediate length is obtained by direct interpolation.
- (b) If the bulwark is more than standard height, the area required by [§ 45.117](/cfr/46/45.117.md) must be increased by 0.04 square feet per foot (ft 2/ft) of length of well for each foot difference in height.
- (c) For ships greater than 480 ft in length that have an average bulwark height less than 3 ft, the area required by [§ 45.117](/cfr/46/45.117.md) may be decreased by 0.04 ft 2/ft of length for each foot difference in height.

## 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.