As for the license, remember, they couldn't control CB radios, even back
when they were reasonably expensive, so not likely they will have a really
good handle on dollar a dozen FRS's.
What is more important to keep in mind is that if using these in port, that
you are subject to the laws of the host country, some of those can be very
lax but some can be super strict, especially if the county by chance uses
any of those frequencies for their own public service. Prime example is
Mexico, very common for taxi's to use CB radios for their communications.
Not far fetched for them to be switching to the more powerful FRS's for
added power, more stable communication, less interference, also some
port authorities, not to forget the ever powerful Walmart.
Just keep an ear out for traffic you don't understand, if it is there then those
frequencies are probably being used locally, best to steer clear.
