605 ILCS 5/5-913

All impact fees collected pursuant to this Division shall be deposited into interest bearing accounts designated solely for such funds for each service area. All interest earned on such funds shall become a part of the moneys to be used for the road improvements authorized by this Division. The unit of local government shall provide that an accounting be made annually for any account containing impact fee proceeds and interest earned. Such accounting shall include, but shall not be limited to, the total funds collected, the source of the funds collected, the total amount of interest accruing on such funds, and the amount of funds expended on road improvements. Notice of the results of the accounting shall be published in a newspaper of general circulation within the unit of local government at least 3 times. A statement that a copy of the report is available to the public for inspection at reasonable times shall be contained in the notice. A copy of the report shall be provided to the Advisory Committee.