                                 CODE OF VIRGINIA

 VENTILATION WITH AIR FROM CERTAIN AREAS (§ 45.2-844)

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.

HISTORY: 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.