US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter IIPart 236Subpart G236.70749 C.F.R. § 236.707Blade, semaphore.Last amended: 2017Year: 2026Length: 14 wordsOfficial source Cite as 49 C.F.R. § 236.707 (2026)The extended part of a semaphore arm which shows the position of the arm.Next49 C.F.R. § 236.723