(225 ILCS 705/19.12) (from Ch. 96 1/2, par. 1912)
    Sec. 19.12. If a designated escape way is a slope of not less than 20 degrees nor more than 45 degrees, it shall be equipped with a stairway or adequate walkway with cleats. If the slope is more than 45 degrees, stairways shall be installed.
(Source: Laws 1953, p. 701.)