Gross tonnage
Gross tonnage (GT) means gross tonnage as determined by the formula in 46 CFR 69.209 for a vessel not designed for sailing (.67 length breadth depth/100). A vessel's length, breadth, and depth are those specified on the vessel's certificate of documentation issued by the U.S. Coast Guard or State.
Source
50 CFR § 660.502
Scoping language
In addition to the definitions in the Magnuson-Stevens Act and in 600.10 of this chapter, the terms used in this subpart have the following meanings: