HIN
Posted: Thu Sep 29, 2011 6:04 pm
I have been having a problem with my HIN. I have a TMI 30, how many letters and numbers are there supposed to have on the HIN? 
As far as I can tell before August 1984 would be 12 here is a link I hope it helps.
http://boatsafe.com/nauticalknowhow/hin.htm