52 Pa. Stat. § 70-509
Current through P.A. Acts 2024-18
Every mine employing more than seventy-five persons shall be divided into two or more districts. Each district shall be provided with a separate split of pure air and the ventilation shall be so arranged that not more than seventy-five persons shall be employed at the same time in any one current or split of air.
52 P.S. § 70-509