[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR75.152] [Page 457] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 75--MANDATORY SAFETY STANDARDS--UNDERGROUND COAL MINES--Table of Contents Subpart B--Qualified and Certified Persons Sec. 75.152 Tests of air flow; qualified person. 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 Sec. 75.100 or a person trained and designated by a certified person to perform such tests.