US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter II — FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 230 — STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDSSubpart C — Steam Locomotives and Tenders230.10449 C.F.R. § 230.104Driving box shoes and wedges.Last amended: 2017Year: 2026Length: 16 wordsOfficial source Cite as 49 C.F.R. § 230.104 (2026)Driving box shoes and wedges shall be maintained in a safe and suitable condition for service.Previous49 C.F.R. § 230.103Next49 C.F.R. § 230.105