{"data":{"id":"us/49-cfr-236.564","jurisdiction":"us","citation":"49 CFR 236.564","heading":"Acknowledging time.","body":"Acknowledging time of intermittent automatic train-stop device shall be not more than 30 seconds.","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":"89f79ff2067593e7f021b9feac798787551baa6185a24065bdd13aded7347064","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.563","next":"us/49-cfr-236.565"},"notice":"GroundRules: Original legal text. Not legal advice."}