{"data":{"id":"us/30-cfr-57.3400","jurisdiction":"us","citation":"30 CFR 57.3400","heading":"Secondary breakage.","body":"Prior to secondary breakage operations, the material to be broken, other than hanging material, shall be positioned or blocked to prevent movement which would endanger persons in the work area. Secondary breakage shall be performed from a location which would not expose persons to danger.","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 B—Ground Control"],"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":"a6d27adbb62368c40eb476715fafd270a95956af5b2b8a5de3f73dced565c098","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.3360","next":"us/30-cfr-57.3401"},"notice":"GroundRules: Original legal text. Not legal advice."}