(225 ILCS 705/6.16) (from Ch. 96 1/2, par. 616)

Sec. 6.16. When in the judgment of the State Mine Inspector, expressed in writing to the mine operator, certain sections of a mine generate dangerous quantities of explosive gases, the State Mine Inspector shall require those sections of the mine to be examined for gas in a prescribed manner and at shorter intervals of time than 3 hours preceding the time the day shift goes on duty for every day in which the mine is to be operated.

(Source: P.A. 99-538, eff. 1-1-17.)