{"data":{"id":"us/49-cfr-236.588","jurisdiction":"us","citation":"49 CFR 236.588","heading":"Periodic test.","body":"Except as provided in § 236.586, periodic test of the automatic train stop, train control, or cab signal apparatus shall be made at least once every 92 days, and on multiple-unit cars as specified by the carrier, subject to approval by the FRA.","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":"c463dda923faf17166eac2de3709b9a3d4d91a5fe8effb8ad93922e5dac216d4","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.587","next":"us/49-cfr-236.589"},"notice":"GroundRules: Original legal text. Not legal advice."}