225 ILCS 310/22

An order of revocation, suspension, placement on probationary status, or other formal disciplinary action as the Department may deem proper, or a certified copy thereof, over the seal of the Department and purporting to be signed by the Director of the Department is prima facie proof that: (a) such signature is the genuine signature of the Director; (b) the Director is duly appointed and qualified; and (c) the Board and the members thereof are qualified.