What is Coast Guard documentation?
Vessel documentation is the United States national form of registration. It is one of the oldest federal maritime functions, dating back to early acts of Congress. Documentation establishes clear evidence of nationality for international use, supports interstate commerce, and can qualify vessels for certain restricted trades such as coastwise activity and fisheries.
Since 1920, vessel financing has also been strengthened by the availability of preferred ship mortgages on documented vessels. For many owners, Coast Guard documentation is considered the preferred method of recording ownership because it offers federal benefits that state-only registration cannot provide, and it is widely viewed as a more prestigious form of registry.

