{"data":{"id":"us/30-cfr-57.11058","jurisdiction":"us","citation":"30 CFR 57.11058","heading":"Check-in, check-out system.","body":"Each operator of an underground mine shall establish a check-in and check-out system which shall provide an accurate record of persons in the mine. These records shall be kept on the surface in a place chosen to minimize the danger of destruction by fire or other hazards. Every person underground shall carry a positive means of being identified.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","Subpart J—Travelways and Escapeways"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"2d722a71ff0f5224075fce12bb3e5daeb0c9a357b82e5bae53b0e2a68a79a2a2","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.11056","next":"us/30-cfr-57.11059"},"notice":"GroundRules: Original legal text. Not legal advice."}