US lawFederal (United States)RegulationsTitle 47 CFR — TelecommunicationChapter IPart 90Subpart N90.44747 C.F.R. § 90.447Retention of station records.Last amended: 2016Year: 2026Length: 16 wordsOfficial source Cite as 47 C.F.R. § 90.447 (2026)Records required by this part shall be retained by the licensee for at least one year.Previous47 C.F.R. § 90.443