US lawFederal (United States)RegulationsTitle 47 CFR — TelecommunicationChapter I — FEDERAL COMMUNICATIONS COMMISSIONPart 1 — PRACTICE AND PROCEDURESubpart E — Complaints, Applications, Tariffs, and Reports Involving Common Carriers1.78347 C.F.R. § 1.783Filing.Last amended: 2016Year: 2026Length: 22 wordsOfficial source Cite as 47 C.F.R. § 1.783 (2026)Copies of carrier contracts, agreements, concessions, licenses, authorizations or other arrangements, shall be filed as required by part 43 of this chapter.Previous47 C.F.R. § 1.781Next47 C.F.R. § 1.787