BOATsmart! USA Knowledge Base
Module 01 - Boating Basics
Hull Identification Number (HIN)
All watercraft made in the U.S. after 1972 (with or without a motor), must have a Hull Identification Number (HIN).
The Hull Identification Number is 12 digits long and must be permanently marked on the starboard (or right) corner of the stern. Like the license plate on your car or truck, your boat’s Hull Identification Number differentiates your boat from other boats, helps police to find lost or stolen boats and also helps manufacturers locate your boat during a product recall. Remember, it’s illegal to deface, alter or remove the HIN.
The Hull Identification Number identifies:
- The model of your boat.
- The serial number of your boat.
- The month and year the boat was made.
- The name of the boat manufacturer.
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