History
In 1972, The US Coast Guard was given the task of proposing a standardized HIN format as part their new regulations for the safe construction of boats. The HIN was required to be visible on all boats and personal water craft. As a result of the new regulations, the Federal Boat Safety Act was passed in 1972. Exerts from this law can be found on on the Boat HIN Laws tab of this site.
The placement of the HIN varies depending on the type of boat but can generally be found on the upper right hand corner of the transom, always on the outboard so as to be seen from outside the boat. On boats without transoms, it should be placed on the starboard outboard side of the stern. Additionally, in all boats manufactured after August 1984, the HIN should be located in another place throughout the boat that is a bit less noticeable but can still be found with a bit of effort. In all cases, the HIN should be permanently affixed and above the water line.
The placement of the HIN varies depending on the type of boat but can generally be found on the upper right hand corner of the transom, always on the outboard so as to be seen from outside the boat. On boats without transoms, it should be placed on the starboard outboard side of the stern. Additionally, in all boats manufactured after August 1984, the HIN should be located in another place throughout the boat that is a bit less noticeable but can still be found with a bit of effort. In all cases, the HIN should be permanently affixed and above the water line.