Muchas gracias for the machine plates link! I need both a HIN plate on the back of my transom per MA state regs, and i think a second one hidden somewhere else per the Feds. I have neither

, and somehow slipped by when registering the boat this spring with a smile and a chat at the DFW office as was supposed to have a 'HIN number rubbing' or something to that effect. So if your up here in MA, we have that regulation as well. Never heard of anyone being written up here for this though...
http://www.mass.gov/dfwele/dle/boatregfaq.htm#HIN