(225 ILCS 710/45.39) (from Ch. 96 1/2, par. 4292)
    Sec. 45.39. Ladderways shall be provided in all shafts in the course of sinking to within such a distance from the bottom as will secure them from damages by blasting. From the end of such ladderways, chain, wire rope or wooden extension ladders to reach to the bottom of the shaft shall be provided. Provided, however, if shots are fired by electricity, ladders shall not be required.
(Source: Laws 1945, p. 1035.)