U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 46Chapter IPart 45Subpart C - Subpart C—Freeboards
View all text of Subpart C [§ 45.51 - § 45.77]
§ 45.73 - Winter freeboard.

The minimum winter freeboard (fw) in inches is obtained by the formula:

fw=f(s) + T s (200)/L where: L = length L in feet but not less than 400 feet.
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