Section 305 ILCS 5/10-12 - Petition by responsible relative for release from or modification of administrative support order or administrative determination of paternity(a) Any responsible relative aggrieved by an administrative order entered under Section 10-11 or 10-11.1 or an administrative determination of paternity entered under Section 10-17.7 who has been duly notified of such order or determination may, within 30 days from the date of mailing of such order or determination, petition the Illinois Department for a release from or modification of the order or determination. The day immediately subsequent to the mailing of the order or determination shall be considered as the first day, and the day such petition is received by the Illinois Department shall be considered as the last day in computing the 30 day appeal period. The Illinois Department shall, upon receipt of a petition within the 30 day appeal period, provide for a hearing to be held thereon.
(b) Notwithstanding the 30-day appeal period set forth in subsection (a), a man against whom a default administrative determination of paternity has been entered may have the determination vacated if, within 30 days after being served with the determination, he appears in person at the office to which he was given notice to appear for an interview and files a written request for relief from the determination. The Illinois Department shall then proceed with the establishment of paternity. A man may obtain relief under this subsection from an administrative determination of paternity only once in any proceeding to establish paternity. P.A. 90-790, eff. 8/14/1998.