(c) Definitions. "Overall length" is the distance between the forward and after extremities of the vessel.
"Extreme breadth" is the maximum breadth to the outside of the shell plating of the vessel.
"Depth" is the vertical distance at amidships from the top of the keel plate to the uppermost continuous deck, fore and aft, and which extends to the sides of the vessel. The continuity of a deck shall not be considered to be affected by the existence of openings, including but not limited to tonnage openings, engine spaces or a step in the deck.
All measurements shall be in feet and inches (U.S.).
The board of commissioners of pilots shall be the sole arbiter with respect to a question concerning these definitions. The decision by the board shall be final.