Hull Identification Numbers

A hull identification number is unique to the vessel and allows its positive identification. All vessels operated on the waters of this state must have an assigned hull identification number.


  • The numbers must be above the waterline of the vessel in such a way that alteration, removal or replacement would be obvious and evident.
  • The hull identification number must be a minimum of 12 characters in length and no less than one-fourth inch in height.
  • Vessels for which the manufacturer has provided no hull identification number and homemade vessels constructed or assembled by the owner will be assigned a hull identification number by the Department of Highway Safety and Motor Vehicles.

Any questions regarding the hull identification number on a vessel should be directed to Florida Fish and Wildlife Conservation Commission.