{"data":{"id":"us/49-cfr-218.25","jurisdiction":"us","citation":"49 CFR 218.25","heading":"Workers on a main track.","body":"When workers are on, under, or between rolling equipment on a main track:\n(a) A blue signal must be displayed at each end of the rolling equipment; and\n(b) If the rolling equipment to be protected includes one or more locomotives, a blue signal must be attached to the controlling locomotive at a location where it is readily visible to the engineman or operator at the controls of that locomotive.\n(c) When emergency repair work is to be done on, under, or between a locomotive or one or more cars coupled to a locomotive, and blue signals are not available, the engineman or operator must be notified and effective measures must be taken to protect the workers making the repairs.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 218—RAILROAD OPERATING PRACTICES","Subpart B—Blue Signal Protection of Workers"],"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":"0ace0a122316c4fea64d39ad0443d80a31b71b0da5e7391c4b33864b8183d607","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-218.24","next":"us/49-cfr-218.27"},"notice":"GroundRules: Original legal text. Not legal advice."}