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You are looking at a preview of what’s in the Rhode Island Boat Ed Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Rhode Island Certificate of Boating Safety Education.

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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 homemade, the Department of Environmental Management will issue an HIN for your vessel and instruct you how to attach it permanently.

It is illegal to destroy, remove, cover, or mutilate the HIN.

Hull identification number