{"data":{"id":"us/49-cfr-236.551","jurisdiction":"us","citation":"49 CFR 236.551","heading":"Power supply voltage; requirement.","body":"The voltage of power supply shall be maintained within 10 percent of rated voltage.","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":"1925de96e9a2d811afef6e62ea4677592f26936cafa461d4affa71c1e3ca0694","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.534","next":"us/49-cfr-236.552"},"notice":"GroundRules: Original legal text. Not legal advice."}