Questions about the practices of the Federal Communications Commission (FCC), a US government agency that regulates communications, including amateur radio. For questions not about the FCC per se, use [united-states] and either [license] or [legal] as appropriate, instead.
Use this tag when you are asking specifically about the FCC itself in a way which is not covered by either license or legal.
If your question is about what amateur radio operators in the United States are allowed to do, use legal and united-states instead.
If your question is about obtaining and holding an amateur radio license in the United States, use license and united-states instead.