{"data":{"id":"us/49-cfr-236.342","jurisdiction":"us","citation":"49 CFR 236.342","heading":"Switch circuit controller.","body":"Switch circuit controller connected at the point to switch, derail, or movable-point frog, shall be maintained so that its contacts will not be in position corresponding to switch point closure when switch point is open one-fourth inch or more.","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 C—Interlocking"],"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":"ac97221d71e8f1e99c80699f5469172153d27d7d4277b2b6fabcb35ea3617b9f","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.341","next":"us/49-cfr-236.376"},"notice":"GroundRules: Original legal text. Not legal advice."}