{"data":{"id":"us/30-cfr-57.4561","jurisdiction":"us","citation":"30 CFR 57.4561","heading":"Stationary diesel equipment underground.","body":"Stationary diesel equipment underground shall be—\n(a) Supported on a noncombustible base; and\n(b) Provided with a thermal sensor that automatically stops the engine if overheating occurs.","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":"bac230b3ee485e976f38f2b462e2b13287d974a1c950de25f3ef569605cdb0f5","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.4560","next":"us/30-cfr-57.4600"},"notice":"GroundRules: Original legal text. Not legal advice."}