46 C.F.R. § 45.71 Midsummer freeboard.
Title 46 - Shipping
The minimum midsummer freeboard (fms) in inches is obtained by the formula: fms=f(s)−0.3Ts
where: f(s)=summer freeboard in inches Ts=distance in feet between top of keel and the summer load line.
Title 46: Shipping
PART 45—GREAT LAKES LOAD LINES
Subpart C—Freeboards
§ 45.71 Midsummer freeboard.
