This is an optional field. A registration number should be available for all boats except those stolen prior to registration.
The registration number is to be entered omitting spaces, hyphens, and symbols. Ensure that all letters and numerals that are part of the registration number are included. Partial numbers are not to be entered. The code of Federal Regulations, Title 33, Section 174.33 sets out the requirements for boat registration numbers. Each registration number must consist of two capital letters denoting the state of the issuing authority. These two alphabetics are followed by not more than four numerics and two alphabetics or not more than three numerics and three alphabetics (for example, WS123EFG or WS4567BD). Although the registration number, state, and the year of expiration are not mandatory fields, they are necessary for an inquiring agency to properly evaluate a hit, and thus should be filled if at all possible. If Registration Number is entered, the State Field, and the Year of Expiration Field must be filled.