(225 ILCS 705/31.20) (from Ch. 96 1/2, par. 3120)
Sec. 31.20.
Ventilating fans shall be operated on a separate power circuit, independent of the mine circuit.
(Source: Laws 1953, p. 701.)
225 ILCS 705/31.20 — under Coal Mining Act.
225 ILCS 705/31.20
(225 ILCS 705/31.20) (from Ch. 96 1/2, par. 3120)
Sec. 31.20.
Ventilating fans shall be operated on a separate power circuit, independent of the mine circuit.
(Source: Laws 1953, p. 701.)