A. The installation or use of an auxiliary fan in any mine is prohibited without the prior written approval of the Chief.
B. A machine-mounted scrubber and spray fan system may be used for control of coal dust and enhancement of ventilation. Such an installation is not considered an auxiliary fan.
Code 1950, § 45-60.2; 1954, c. 191; 1966, c. 594, § 45.1-55; 1993, c. 442; 1994, c. 28, § 45.1-161.218; 2005, c. 3; 2021, Sp. Sess. I, c. 387.