{"data":{"id":"us/30-cfr-56.6603","jurisdiction":"us","citation":"30 CFR 56.6603","heading":"Air gap.","body":"At least a 15-foot air gap shall be provided between the blasting circuit and the electric power source.","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 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","Subpart E—Explosives"],"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":"7481c092fd5b5307e5257ad74fd391b6bb1c666278f4a19ae9edec6dde4ee9b4","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-56.6602","next":"us/30-cfr-56.6604"},"notice":"GroundRules: Original legal text. Not legal advice."}