Virginia Decodedhttps://vacode.org7083445.2-844 Ventilation with air from certain areas2025Mines, Minerals, and EnergyCoal MiningUnderground Coal MinesRequirements Applicable to Underground Coal Mines; Electricity, Safety, EtcVentilation, Mine Gases, and Other Hazardous Conditions

Active face workings shall not be ventilated with air that has passed through a worked-out area or has been used to ventilate a pillar line. This section shall not apply to air that is being used to ventilate an active pillar line or a room that is necessary to establish and maintain such pillar line.

Code 1950, § 45-60.5; 1954, c. 191; 1966, c. 594, § 45.1-62; 1993, c. 442; 1994, c. 28, § 45.1-161.227; 1996, c. 774; 1999, c. 256; 2021, Sp. Sess. I, c. 387.