Originally Posted by jjns
Up here, in the great white north, you have to have a Restricted Radio Operators License to legally use a VHF radio. Take a course, pay your money, learn proper rules and protocols. Failure to do so results in a nasty fine.
I would be surprised if the US doesn't have similar legislation.
While not required in US airspace, I went to the trouble of obtaining a Restricted Radio Operators License for myself and a Station License for my aircraft, should I ever decided to fly to the Great White North.
I suppose similar rules might apply for US Documented vessels as for US registered aircraft, but couldn't say for sure.