{"data":{"id":"us-il/750-ilcs-46-609","jurisdiction":"us-il","citation":"750 ILCS 46/609","heading":"Limitation; child having acknowledged or adjudicated parent.","body":"(a) If a child has an acknowledged parent, a signatory to the acknowledgment described in Section 301 of this Act or related denial may commence a proceeding seeking to challenge the acknowledgment or denial or challenge the parentage of the child only within the time allowed under Section 309 of this Act.\n(b) If a child has an acknowledged parent or an adjudicated parent, an individual, other than the child, who is neither a signatory to the acknowledgment nor a party to the adjudication and who seeks to challenge an adjudication of parentage of the child must commence a proceeding not later than 2 years after the effective date of the acknowledgment or adjudication.\n(c) A proceeding under this Section is subject to the application of the principles of estoppel established in Section 610 of this Act.","path":["CHAPTER 750 FAMILIES","Illinois Parentage Act of 2015."],"source_url":"https://www.ilga.gov/legislation/ILCS/details?ActID=3638\u0026ChapterID=59\u0026ChapAct=FullText\u0026Print=True","current_through":"at least Public Act 104-790","vintage":"","retrieved_at":"2026-09-15T04:46:44Z","sha256":"4da406ddf96517779190ccd6b4277d41c0aba1886d0f91ec996cc33b8ef7ab28","source_id":"us-il","stale":false,"prev":"us-il/750-ilcs-46-608","next":"us-il/750-ilcs-46-610"},"notice":"GroundRules: Original legal text. Not legal advice."}