46 C.F.R. § 45.177 Freeboard requirements.
Title 46 - Shipping
(a) All barges must have a minimum freeboard of 24 inches (610 mm). (b) Additionally, open hopper barges must have a combined freeboard plus cargo box coaming height of at least 54 inches (1,372 mm).
Title 46: Shipping
PART 45—GREAT LAKES LOAD LINES
Subpart E—Unmanned River Barges on Lake Michigan Routes
§ 45.177 Freeboard requirements.
