Ariz. Admin. Code § 11-1-1813
Current through Register Vol. 30, No. 50, December 13, 2024
When there has been a failure of ventilation and ventilation has been restored in a reasonable time, all active workings and travelways where flammable gas may have accumulated should be examined by qualified persons and determined to be free of flammable gas before power is restored and work resumed.
Ariz. Admin. Code § R11-1-1813