US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter II — FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 229 — RAILROAD LOCOMOTIVE SAFETY STANDARDSSubpart C — Safety Requirements229.7949 C.F.R. § 229.79Third rail shoes.Last amended: 2017Year: 2026Length: 31 wordsOfficial source Cite as 49 C.F.R. § 229.79 (2026)When locomotives are equipped with both third rail and overhead collectors, third-rail shoes shall be deenergized while in yards and at stations when current collection is exclusively from the overhead conductor.Previous49 C.F.R. § 229.77Next49 C.F.R. § 229.81