46 C.F.R. § 45.63 Correction for sheer.
Title 46 - Shipping
(a) The minimum summer freeboard must be increased by the deficiency, or may be decreased by the excess as limited by §45.65, of sheer calculated from table 4, multiplied by: 0.75—(S/2L)
where S is the total length of enclosed superstructures. Trunks are not included.
Title 46: Shipping
PART 45—GREAT LAKES LOAD LINES
Subpart C—Freeboards
§ 45.63 Correction for sheer.