US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter II — MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 307 — ESTABLISHMENT OF MANDATORY POSITION REPORTING SYSTEM FOR VESSELS307.1146 C.F.R. § 307.11Report changes.Last amended: 2016Year: 2026Length: 28 wordsOfficial source Cite as 46 C.F.R. § 307.11 (2026)The Administrator, through MARAD advisory or special warning, may direct changes in reporting frequency and specify particular information to be included in the comments section of AMVER messages.Previous46 C.F.R. § 307.9Next46 C.F.R. § 307.13