305 ILCS 5/10-10.3
For those cases in which child support is payable to the clerk of the circuit court for transmittal to the Illinois Department by order of court, the clerk shall transmit all such payments, within 4 working days of receipt, to insure that funds are available for immediate distribution by the Department to the person or entity entitled thereto in accordance with standards of the Child Support Enforcement Program established under Title IV-D of the Social Security Act. The clerk shall notify the Department of the date of receipt and amount thereof at the time of transmittal. Where the clerk has entered into an agreement of cooperation with the Department to record the terms of child support orders and payments made thereunder directly into the Department's automated data processing system, the clerk shall account for, transmit and otherwise distribute child support payments in accordance with such agreement in lieu of the requirements contained herein.
To the extent the provisions of this Section are inconsistent with the requirements pertaining to the State Disbursement Unit under Sections 10-10.4 and 10-26 of this Code, the requirements pertaining to the State Disbursement Unit shall apply.
305 ILCS 5/10-10.3