US lawFederal (United States)RegulationsTitle 47 CFR — TelecommunicationChapter I — FEDERAL COMMUNICATIONS COMMISSIONPart 15 — RADIO FREQUENCY DEVICESSubpart F — Ultra-Wideband Operation15.50147 C.F.R. § 15.501Scope.Last amended: 2016Year: 2026Length: 11 wordsOfficial source Cite as 47 C.F.R. § 15.501 (2026)This subpart sets out the regulations for unlicensed ultra-wideband transmission systems.Next47 C.F.R. § 15.503