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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—the same as serial numbers distinguish one car from another.
  • Are engraved in the fiberglass or on a metal plate permanently 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.

If your vessel is custom or home-built, contact the Department of Natural Resources to have a hull identification number assigned to your vessel.

It is illegal to destroy, remove, alter, cover, or deface a hull identification number.

Hull identification number