{"data":{"id":"us/49-cfr-236.516","jurisdiction":"us","citation":"49 CFR 236.516","heading":"Power supply.","body":"Automatic cab signal, train stop, or train control device hereafter installed shall operate from a separate or isolated power supply.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 236—RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES","Subpart E—Automatic Train Stop, Train Control and Cab Signal Systems"],"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":"a8ad6a741a5b43e46924d08e27679f8aaf0e69d83d81b65af7c75fced1ae209d","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.515","next":"us/49-cfr-236.526"},"notice":"GroundRules: Original legal text. Not legal advice."}