The official number assigned to documented vessels, preceded by the abbreviation "NO." must be marked in block-type Arabic numerals at least three inches high on some clearly visible interior structural part of the hull. The number must be permanently affixed so that alteration, removal, or replacement would be obvious and cause some scarring or damage to the surrounding hull area.

The name and hailing port of a recreational vessel must be marked together on some clearly visible exterior part of the hull. The vessel name of a commercial vessel must also be marked on the port and starboard bow and the vessel name and the hailing port must also be marked on the stern. All markings may be made by any means and materials that result in durable markings and must be at least four inches in height, made in clearly legible letters of the Latin alphabet or Arabic or Roman numerals. The hailing port must include both a place and a State, Territory, or possession of in the United States. The state may be abbreviated.

You may change the name and/or hailing port by navigating to the following page and completing the online form: Change of Vessel Name/Haling Port


Changing the name or hailing port of a vessel is a process that involves legal and administrative steps to ensure compliance with maritime regulations.

The Coast Guard wants to make certain that the correct person receives mail concerning the vessel documentation. As many vessels have multiple owners, one must be designated as the managing owner. 

A preferred mortgage is a mortgage which is given status as a maritime lien. As such it enjoys a certain priority in the event of default. In addition, the Coast Guard is prohibited from making certain changes in documentation including, but not limited to, change of vessel ownership, name, and hailing port without consent of the mortgagee. For this reason many financial institutions require vessels which are eligible for documentation to be documented and to have preferred mortgages recorded against them.

United States Coast Guard vessel documentation forms are available online at this website. Upon completion, all forms automatically forward to Documentation Processors for review. 

No, you do not have to submit any vessel documentation by mail.

Completing boat documentation online can expedite the process, as it is not subject to potential delays (as mail submission may). 

You may obtain an Abstract of Title which will show all bills of sale, mortgages, and notices of claim of lien filed and recorded by the Coast Guard. You may request an Abstract by navigating to the following page: Abstract of Title

No. 

Any documented vessel must comply with the laws of the state in which they are operated, including the laws relating to safety equipment, according to the Government. 

Vessel documentation does not cover a vessel’s tender or dinghy. 

As those measure less than five net tons, they are not eligible for vessel documentation. 

When the sale is finalized, you may complete a Bill of Sale. The new owner will have to complete a Transfer application, which can be completed by navigating to the following link: Transfer/Exchange

Provided there are no changes other than the owner’s address, a Certificate of Documentation is valid for one year from the date of issue. 

Previously, any Certificate of Documentation had to be renewed annually. 

No, a lost certificate of documentation must be replaced by completing an application for Replacement, which can be completed by navigating to the following page: Replacement (COD)