Federal Communications Commission (FCC) — U.S. independent regulatory agency. Under the safer-skies-act interim final rule, the Act’s “notwithstanding” relief from federal criminal law does not displace the Communications Act, so any SLTT C-UAS system that emits radio waves requires FCC authorization, not mere coordination — the strictest of the three federal-agency touchpoints (FBI, FAA, FCC) in the mandatory advance-coordination process.