b-
For ham
radio? Only the user has to be licensed. For other
radio services, the rules may vary. But LOCAL licenses are prohibited in the US. The FCC has the sole authority to grant
license for radio operation/transmission, and radio receivers are expressly allowed to the entire public, except for certain "public safety" (security) considerations. The Federal
Communications Act of 1934(?) pre-empted all state and local regulation over the public airwaves, and that's pretty much still the case in the US.
Every once in a while some fool corporation or sub-government tries to go against that, and they get slapped down good when the
music is over.