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It's the Law

Hull Identification Number


The Hull Identification Number (HIN) is a unique 12-digit number assigned by the manufacturer to vessels built after 1972.

Hull Identification Numbers distinguish one vessel from another. They are engraved in the fiberglass or on a metal plate attached to the transom. You should write down your HIN and put it in a place separate from your vessel in case warranty problems arise or your vessel is stolen.

Owners of vessels that do not have an HIN must contact the AZGFD prior to registration.

It is illegal to remove or alter the HIN.

Hull Identification Number

Proof of Ownership Required to Register

To register a vessel, you must provide as evidence of ownership a complete bill of sale, a court decree, or an original Certificate of Origin. If the vessel was registered in another state, you must provide the original title or registration (if a non-title state).

If a bill of sale is presented, it must include:

  • Buyer’s name and seller’s name and signature
  • Manufacturer’s name
  • HIN (vessels manufactured after 1972)
  • Previous registration number (if applicable)
  • Purchase price
  • Sales tax paid if purchased from a dealer or at an auction. A business purchasing a vessel for rental or resale must complete a tax exemption form. Call the AZGFD (602-942-3000) for questions regarding sales or use tax.

If registered in another state, the signed original title or registration must be submitted.