{"data":{"id":"us/49-cfr-236.201","jurisdiction":"us","citation":"49 CFR 236.201","heading":"Track-circuit control of signals.","body":"The control circuits for home signal aspects with indications more favorable than “proceed at restricted speed” shall be controlled automatically by track circuits extending through the entire block.","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 B—Automatic Block 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":"09c026838f8849a1f88fa316414cb6dc6bd0e60c893b720b27e0b8520469c231","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.110","next":"us/49-cfr-236.202"},"notice":"GroundRules: Original legal text. Not legal advice."}