(225 ILCS 705/31.03)
(from Ch. 96 1/2, par. 3103)
In every mine the minimum quantity of air shall not be less than
150 cubic feet per minute for each person employed, measured at the foot of the
downcast and of the upcast.
However, in any mine wherein explosive gas is being generated in such
quantities that it can be detected by a multi-gas detector, the minimum
quantity of air shall not be less than 200 cubic feet per minute for each
person employed therein. The State Mine Inspector shall have power by order
in writing to require these quantities to be increased.
(Source: P.A. 99-538, eff. 1-1-17