{"data":{"id":"us/49-cfr-234.227","jurisdiction":"us","citation":"49 CFR 234.227","heading":"Train detection apparatus.","body":"(a) Train detection apparatus shall be maintained to detect a train or railcar in any part of a train detection circuit, in accordance with the design of the warning system.\n(b) If the presence of sand, rust, dirt, grease, or other foreign matter is known to prevent effective shunting, a railroad shall take appropriate action under § 234.105, “Activation failure,” to safeguard highway users.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 234—GRADE CROSSING SAFETY","Subpart D—Maintenance, Inspection, and Testing"],"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":"8fc1be586a42dd8ab97f6fc95f2df0a1e9b1f055c67d3754442e918d6943e532","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-234.225","next":"us/49-cfr-234.229"},"notice":"GroundRules: Original legal text. Not legal advice."}