{"data":{"id":"us/30-cfr-75.1324","jurisdiction":"us","citation":"30 CFR 75.1324","heading":"Methane concentration and tests.","body":"(a) No shot shall be fired in an area that contains 1.0 volume percent or more of methane.\n(b) Immediately before shots are fired, the methane concentration in a working place or any other area where blasting is to be performed, shall be determined by a person qualified to test for methane.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","Subpart N—Explosives and Blasting"],"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":"938ad495db6627b1fd28d0bbe6462246e2be0de48ae10e0b600ec9cb313b48a8","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.1323","next":"us/30-cfr-75.1325"},"notice":"GroundRules: Original legal text. Not legal advice."}