46 C.F.R. § 44.01-20 New and existing vessels; special service.
Title 46 - Shipping
(a) A new vessel marked with load lines for special service on a coastwise or inter-island voyage is a vessel whose keel was laid on or after September 28, 1937. An existing vessel is one whose keel was laid before that date.
Title 46: Shipping
PART 44—SPECIAL SERVICE LIMITED DOMESTIC VOYAGES
Subpart A—Administration
§ 44.01-20 New and existing vessels; special service.