US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 121 — VESSEL CONTROL AND MISCELLANEOUS SYSTEMS AND EQUIPMENTSubpart E — Radio121.50646 C.F.R. § 121.506Emergency broadcast placard.Last amended: 2016Year: 2026Length: 23 wordsOfficial source Cite as 46 C.F.R. § 121.506 (2026)A durable placard must be posted next to all radiotelephone installations with the emergency broadcast instructions and information, specific to the individual vessel.Previous46 C.F.R. § 121.502Next46 C.F.R. § 121.510