{"data":{"id":"us/30-cfr-57.6310","jurisdiction":"us","citation":"30 CFR 57.6310","heading":"Misfire waiting period.","body":"When a misfire is suspected, persons shall not enter the blast area—\n(a) For 30 minutes if safety fuse and blasting caps are used;\n(b) For 15 minutes if any other type detonators are used; or\n(c) For 30 minutes if electronic detonators are used, or for the manufacturer-recommended time, whichever is longer.","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 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":"f104f7cc93953952467ef082ed301e9c9da6ac4f6f6dee325e752ae3f07665aa","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.6309","next":"us/30-cfr-57.6311"},"notice":"GroundRules: Original legal text. Not legal advice."}