US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 113 — COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENTSubpart 113.40—Rudder Angle Indicator Systems113.40-146 C.F.R. § 113.40-1Applicability.Last amended: 2016Year: 2026Length: 6 wordsOfficial source Cite as 46 C.F.R. § 113.40-1 (2026)This subpart applies to self-propelled vessels.Next46 C.F.R. § 113.40-5