Who regulates amateur radio in the United States?

The Federal Communications Commission (FCC) is the regulatory body that oversees and enforces laws related to communications, including amateur radio, in the United States. This agency is responsible for issuing amateur radio licenses, setting rules and regulations for operation, and managing frequency allocations. The FCC ensures that amateur radio operators comply with technical standards and operational guidelines, thereby maintaining communication integrity and safety.

The other organizations mentioned play different roles or have specific responsibilities that do not include the regulation of amateur radio. For instance, the FAA primarily focuses on civil aviation, and the NTIA manages federal government use of radio frequencies but does not regulate amateur radio operators directly. The ARRL is a national association of amateur radio operators that advocates for the interests of its members and provides resources and support, but it does not have regulatory authority.