{"data":{"id":"us/30-cfr-57.4500","jurisdiction":"us","citation":"30 CFR 57.4500","heading":"Heat sources.","body":"Heat sources capable of producing combustion shall be separated from combustible materials if a fire hazard could be created.","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 C—Fire Prevention and 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":"d5b29086d6e1268a54e54e08d59859b7420441a69be98e555a2e247a9b5f9496","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.4463","next":"us/30-cfr-57.4501"},"notice":"GroundRules: Original legal text. Not legal advice."}