seagoing motor vessel
(43) “seagoing motor vessel” means a motor vessel of at least 300 gross tons as measured under section 14502 of this title , or an alternate tonnage measured under section 14302 of this title as prescribed by the Secretary under section 14104 of this title making voyages beyond the Boundary Line.
Source
46 USC § 2101(43)
Scoping language
None identified, default scope is assumed to be the parent (chapter 21) of this section.