US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter II — FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 299 — TEXAS CENTRAL RAILROAD HIGH-SPEED RAIL SAFETY STANDARDSSubpart B — Signal and Trainset Control System299.20349 C.F.R. § 299.203PTC system required.Last amended: 2020Year: 2026Length: 17 wordsOfficial source Cite as 49 C.F.R. § 299.203 (2026)The railroad shall not commence revenue service prior to installing and making operative its FRA-certified PTC system.Previous49 C.F.R. § 299.201Next49 C.F.R. § 299.205