{"data":{"id":"us/30-cfr-74.3","jurisdiction":"us","citation":"30 CFR 74.3","heading":"Sampler unit.","body":"A CMDPSU shall consist of:\n(a) A pump unit,\n(b) A sampling head assembly, and\n(c) If rechargeable batteries are used in the pump unit, a battery charger.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 74—COAL MINE DUST SAMPLING DEVICES","Subpart B—Approval Requirements for Coal Mine Dust Personal Sampler Unit"],"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":"eeda62e4e644cef8bed4e99a69492cafd3b07552526e54e01d56410d2b4e14d0","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-74.2","next":"us/30-cfr-74.4"},"notice":"GroundRules: Original legal text. Not legal advice."}