Which of the following is NOT a type of U.S. vessel registration?

The correct answer is that "Certificate of Registration" is not a type of U.S. vessel registration. In the U.S., vessel registration is primarily categorized into several formal types that are recognized under maritime law.

A Certificate of Numbers refers to a state-issued number assigned to a vessel that is primarily used for identification purposes, typically for vessels that are registered on a state level rather than federally. The Certificate of Documentation is a federal document issued by the Coast Guard that allows for various benefits, including documentation of a vessel's ownership and eligibility for operating in certain waters and for commercial purposes. A Certificate of Inspection is associated with the inspection of commercial vessels to ensure safety and compliance with federal regulations.

The term "Certificate of Registration" is not an official designation used in the U.S. for vessel registration. Instead, it may be confused with similar terms but does not appear within the commonly recognized categories of vessel documentation or registration specified by the U.S. Coast Guard. Understanding the differences among these documents is crucial for recognizing how vessels in the U.S. are classified and regulated.