Back in the day, boat owners having a VHF had to get a VHF
"Station" license which included "Call Letters" assigned to the boat. An "Operators" license was also required. I think the "Operators" license is no longer required..not sure if the "Station" license is still around. It was no big deal..NOT like a getting a "Ham" License which actually required training, competence, and an exam.
Proper use of the radio required identifying yourself by your "Call Letters" and boat name when using the radio. OH for the good ole days.

NB
Holy {stuff}: I just hit 2000 posts.