(820 ILCS 125/12) (from Ch. 48, par. 198.12)
    Sec. 12. The Department may at any time and from time to time propose such modifications of or additions to any administrative regulations included in any directory or mandatory order without reference to a wage board, as it may deem appropriate to effectuate the purpose of this act, provided such proposed modifications or additions could legally have been included in the original order, and notice shall be given of a public hearing to be held by the Department not less than fifteen days after such publication at which all persons in favor of or opposed to such proposed modification or additions may be heard. After such hearing the Department may make an order putting into effect such proposed modifications of or additions to the administrative regulations as it deems appropriate, and if the order of which the administrative regulations form a part has theretofore been made mandatory in whole or in part then the Department in making any new order shall have the power to declare to what extent such order shall be directory and to what extent mandatory.
(Source: Laws 1945, p. 814.)