{"data":{"id":"us/49-cfr-299.203","jurisdiction":"us","citation":"49 CFR 299.203","heading":"PTC system required.","body":"The railroad shall not commence revenue service prior to installing and making operative its FRA-certified PTC system.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 299—TEXAS CENTRAL RAILROAD HIGH-SPEED RAIL SAFETY STANDARDS","Subpart B—Signal and Trainset Control System"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"5d1c202d22ccfdd0dff6a564668acaa866f440d91ed634717677160bed2de81e","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-299.201","next":"us/49-cfr-299.205"},"notice":"GroundRules: Original legal text. Not legal advice."}