What is a "hull identification number" (HIN)?

A hull identification number (HIN) is indeed a unique identification number assigned to a boat. The purpose of the HIN is to provide a means of identifying a specific vessel, much like a Vehicle Identification Number (VIN) is used for cars. This number is typically a 12-character code that contains information about the manufacturer, the model, and the year the boat was constructed.

The HIN serves multiple important roles, such as aiding in the identification of stolen vessels, facilitating the registration process, and ensuring compliance with safety regulations. It is permanently affixed to the boat, usually on the transom, making it easily accessible for inspection. This number is essential for maintaining records regarding ownership and legalities surrounding the vessel, as well as for tracking safety recalls or issues related to the boat's construction.

While other options provided, such as a capacity tag or registration number, serve important functions in boating safety and legal operation, they are distinct from the unique identification purpose of the HIN.