{"data":{"id":"us/30-cfr-75.152","jurisdiction":"us","citation":"30 CFR 75.152","heading":"Tests of air flow; qualified person.","body":"A person is a qualified person within the meaning of the provisions of Subpart D—Ventilation of this part requiring that tests of air flow be made by a qualified person only if he is a certified person under § 75.100 or a person trained and designated by a certified person to perform such tests.","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 B—Qualified and Certified Persons"],"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":"4d2726728de949d0f96fad88583cc430a9d3a9fc0c6e7841e45ebeebef24f507","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.151","next":"us/30-cfr-75.153"},"notice":"GroundRules: Original legal text. Not legal advice."}