2011 Code of Virginia
Title 45.1 MINES AND MINING.
Chapter 14.3 Requirements Applicable to Underground Coal Mines (45.1-161.105 thru 45.1-161.252)
45.1-161.227 Ventilation with air from certain areas
45.1-161.227. Ventilation with air from certain areas.
Active face workings shall not be ventilated with air that has passed through worked-out areas or has been used to ventilate pillar lines. This section shall not apply to air which is being used to ventilate an active pillar line and rooms which are necessary to establish and maintain the pillar line.
(Code 1950, 45-60.5; 1954, c. 191; 1966, c. 594, 45.1-62; 1993, c. 442; 1994, c. 28; 1996, c. 774; 1999, c. 256.)
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