55 ILCS 5/5-32009
An estimate of the cost of the improvement including the cost of engineering services as originally contemplated or as changed, altered, or modified at the public hearing itemized so far as the Committee thinks necessary shall be presented along with the ordinance and the recommendation. This estimate of cost shall be presented over the signature of the President of the Committee, who shall certify that, in his opinion, the estimate of cost does not exceed the probable cost of the improvement proposed and lawful expenses attending the improvement. The recommendation by the Committee shall be prima facie evidence that it is based upon full compliance with the requirements of the Division.
No ordinance for any local improvement to be paid for by special assessment shall be considered or passed as provided for herein unless the ordinance is first recommended by the Committee.
55 ILCS 5/5-32009