US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 113 — COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENTSubpart 113.30—Internal Communications113.30-146 C.F.R. § 113.30-1Applicability.Last amended: 2016Year: 2026Length: 7 wordsOfficial source Cite as 46 C.F.R. § 113.30-1 (2026)This subpart applies to each self-propelled vessel.Next46 C.F.R. § 113.30-3