(a) Any credit union governed by this Act shall encumber or surrender accounts or assets held by the credit union on behalf of any responsible relative who is subject to a child support lien, upon notice of the lien or levy of the Department of Healthcare and Family Services or its successor agency pursuant to § 10-25.5 of the Illinois Public Aid Code, or upon notice of interstate lien from any other state’s agency responsible for implementing the child support enforcement program set forth in Title IV, Part D of the Social Security Act.
     (b) Within 90 days after receiving notice from the Department of Healthcare and Family Services that the Department has adopted a child support enforcement debit authorization form as required under the Illinois Public Aid Code, each credit union governed by this Act shall take all appropriate steps to implement the use of the form in relation to accounts held by the credit union. Upon receiving from the Department of Healthcare and Family Services a copy of a child support enforcement debit authorization form signed by an obligor, a credit union holding an account on behalf of the obligor shall debit the account and transfer the debited amounts to the State Disbursement Unit according to the instructions in the child support enforcement debit authorization form.