(225 ILCS 705/19.06) (from Ch. 96 1/2, par. 1906)
    Sec. 19.06. In all coal mines more than 200 feet in depth, and opened on or after July 1, 1919, the escapement shaft shall be equipped with both a cage and stairway. However, if the coal mine is equipped with a stairway in the main shaft, no stairway shall be required in the escapement shaft. Subject to the approval of the Mining Board, if a mine has 3 shafts as described in Section 19.05 of this Act, a ladder system as described in Section 19.05 may be used in place of a substantial stairway.
(Source: P.A. 81-378.)