You will need no
license that I’m aware of, I would register the
boat with the USCG if it’s not already done, and you may have to buy a State
registration, which brings you to having to prove
taxes have been paid.
If you have an
SSB radio you will need both a radio station
license for the
boat, and a radio telephone license for you to use it. Both are just tax stamps, no knowledge test.
Verify any
advice you get on the
internet of course, many will mean well, but may be wrong, Tennessee may have some requirement that I’m unaware of for instance.
Wouldn’t hurt to look for a
live aboard Marina now, I have no idea how prevalent they are in Tennessee