35 ILCS 200/29-15
When the Attorney General has certified to the Director of Commerce and Economic Opportunity that the amount, in the nature of a special assessment by which specified abutting State property has been benefited by a specified local improvement, has been determined in compliance with this Article, the Director shall, to the extent that appropriations are available for that purpose, voucher the amount of that assessment, or $25,000, whichever is less, for payment to the appropriate unit of local government. When the amount appropriated in any fiscal year for those purposes is insufficient to pay a special assessment totalling $25,000 or less in full, the balance of that special assessment shall be vouchered for payment from the appropriation for those purposes for the next succeeding fiscal year.
If the amount of the assessment exceeds $25,000, the Director of the Department or the other State officer having jurisdiction over the property affected shall include in the Department's budget for the next succeeding fiscal year a request for the appropriation of the amount by which the assessment exceeds $25,000, plus interest, if any, which shall be vouchered for payment from that appropriation.
35 ILCS 200/29-15