{"data":{"id":"us/49-cfr-236.104","jurisdiction":"us","citation":"49 CFR 236.104","heading":"Shunt fouling circuit.","body":"Shunt fouling circuit shall be inspected and tested at least once every three months.","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 A—Rules and Instructions: All 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":"653580aa7fd08019d6d120ee0cfd003e62fd086105222cec0ecd086c99b08460","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-236.103","next":"us/49-cfr-236.105"},"notice":"GroundRules: Original legal text. Not legal advice."}