HullTrace
HIN DECODER

Decode a Hull ID

A HIN is a 12-character code that encodes the manufacturer, serial number, and model year of every boat built after 1972.

What is a HIN?

Every boat manufactured in the US after November 1, 1972 is required to have a Hull Identification Number. It is permanently affixed to the starboard side of the transom.

How to read a HIN

  • 1–3Manufacturer ID (MIC) assigned by USCG
  • 4–8Manufacturer serial number
  • 9Production month (A=Jan ... L=Dec)
  • 10Last digit of production year
  • 11–12Model year (two-digit)