{"data":{"id":"us/49-cfr-236.338","jurisdiction":"us","citation":"49 CFR 236.338","heading":"Mechanical locking required in accordance with locking sheet and dog chart.","body":"Mechanical locking shall be in accordance with locking sheet and dog chart currently in effect.","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":"22dcd3ed656aa594b72065b612e336e16c9d81ec9bf0d4904a9553ca57896bf0","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.337","next":"us/49-cfr-236.339"},"notice":"GroundRules: Original legal text. Not legal advice."}