If a vessel has a trunk and does not meet the requirements of § 45.61 or has continuous or substantially continuous hatchway side coamings between detached superstructures, the minimum area of the freeing port openings must be obtained from the following table:
| Breadth of hatchway or trunk in relation to the breadth of ship
| Area of freeing ports in relation to the total area of the bulwarks (percent)
|
|---|
| 40 percent or less | 20
|
| 75 percent or more | 10 |
source: CGD 73-49R, 38 FR 12290, May 10, 1973, unless otherwise noted.
cite as: 46 CFR 45.121