820 ILCS 185/42

For any second or subsequent violation determined by the Department which is within 5 years of an earlier violation, the Department shall add the employer or entity's name to a list to be posted on the Department's official website. Upon such notice, the Department shall notify the violating employer or entity. No state contract shall be awarded to an employer or entity appearing on the list until 4 years have elapsed from the date of the last violation.