Freeboard
Freeboard means the straight line vertical distance between a vessel's working deck and the sea surface. If the vessel does not have gunwale door or stern door that exposes the working deck, freeboard means the straight line vertical distance between the top of a vessel's railing and the sea surface.
Source
50 CFR § 665.12
Scoping language
In addition to the definitions in the Magnuson-Stevens Act, 600.10 of this chapter, and subparts B through F of this part, general definitions for western Pacific fisheries have the following meanings: