{"data":{"id":"us/30-cfr-57.4103","jurisdiction":"us","citation":"30 CFR 57.4103","heading":"Fueling internal combustion engines.","body":"Internal combustion engines shall be switched off before refueling if the fuel tanks are integral parts of the equipment. This standard does not apply to diesel-powered equipment.","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":"008051fec2d72b44ced54aeee3f5631398b22c2b97d4b076dd1d1dc102f725f9","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.4102","next":"us/30-cfr-57.4104"},"notice":"GroundRules: Original legal text. Not legal advice."}