46 C.F.R. § 42.20-40
Standard height of superstructure
(a) The standard height of a superstructure shall be as given in table 42.20-40(a):
| Length ( | Raised quarter deck | All other super structures |
|---|---|---|
| 98.5 or less | 3.0 | 5.9 |
| 246 | 3.9 | 5.9 |
| 410 or more | 5.9 | 7.5 |
| 1 The standard heights at intermediate lengths of the vessel shall be obtained by linear interpolation. | ||