§ 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.)
Sections: Previous 45.1-161.220 45.1-161.221 45.1-161.222 45.1-161.223 45.1-161.224 45.1-161.225 45.1-161.226 45.1-161.227 45.1-161.228 45.1-161.229 45.1-161.230 45.1-161.231 45.1-161.232 45.1-161.233 45.1-161.233:1 NextLast modified: April 3, 2009