All boats built after November 1972 by Hatteras have a twelve character "Hull Identification Number" as a means of identification required by the Coast Guard and Federal Regulations.

When ordering replacement parts for your boat, it is very helpful if you know the HIN (Hull Identification Number).

The HIN number will be located at the upper starboard side of the transom. Laterally, the number will be located as close as possible to the starboard corner radius of the transom. 

Below is an example of what the HIN number may look like:

The format of the HIN depends on the year your boat was shipped. The format has changed four times since 1972 so your number may be different from the one showing above.

Characters four through eight are the ones which Sam's Marine or Hatteras representatives will need to quickly and accurately identify your vessel.