Section 750 ILCS 25/5 - Actions subject to Expedited Child Support Hearings(a) The Chief Judge of each Judicial Circuit that establishes a System shall delegate to the Administrative Hearing Officer the authority to hear the following actions: (1) Petitions for child support and for medical support, pursuant to Section 505.2 of the Illinois Marriage and Dissolution of Marriage Act, for post-judgment dissolution of marriage and post-judgment parentage actions where child support or medical support was reserved or could not be ordered at the time of entry of the judgment because the court lacked personal jurisdiction over the obligor.(2) Petitions for modification of child support and medical support in post-judgment dissolution of marriage and post-judgment parentage actions.(3) Parentage actions, including the establishment of child support orders after parentage has been acknowledged.(4) Actions for the enforcement of any existing order for child support or medical support in post-judgment dissolution of marriage and post-judgment parentage actions.(5) Actions for the establishment of child support and medical support orders involving parties who are married and living separately, pursuant to Section 402 of the Marriage and Dissolution of Marriage Act.(6) Temporary orders for support in any action in which the custodial parent is a participant in the IV-D program.(7) Any other child support matter provided for in the Plan for the creation of the System approved by the Illinois Supreme Court.(8) Actions brought pursuant to Article X of the Illinois Public Aid Code.(b) Notwithstanding the provisions of subsection (a) of this Section, if the custodial parent is not a participant in the IV-D program and maintenance is in issue, the case shall be presented directly to the court.(c) Except as provided in subsection (b), the Plan may provide that the System be available in pre-judgment proceedings for dissolution of marriage, declaration of invalidity of marriage and legal separation.