(a) Except as otherwise provided in subsection (b) of this Section, a determination of parentage is binding on:
         (1) all signatories to an acknowledgment or denial as
    
provided in Article 3 of this Act; and
        (2) all parties to an adjudication by a court acting
    
under circumstances that satisfy the jurisdictional requirements of § 201 of the Uniform Interstate Family Support Act.
    (b) A child is not bound by a determination of parentage under this Act unless:

Terms Used In Illinois Compiled Statutes 750 ILCS 46/621

  • Appeal: A request made after a trial, asking another court (usually the court of appeals) to decide whether the trial was conducted properly. To make such a request is "to appeal" or "to take an appeal." One who appeals is called the appellant.
  • Guardian: A person legally empowered and charged with the duty of taking care of and managing the property of another person who because of age, intellect, or health, is incapable of managing his (her) own affairs.
  • individual: shall include every infant member of the species homo sapiens who is born alive at any stage of development. See Illinois Compiled Statutes 5 ILCS 70/1.36
  • State: when applied to different parts of the United States, may be construed to include the District of Columbia and the several territories, and the words "United States" may be construed to include the said district and territories. See Illinois Compiled Statutes 5 ILCS 70/1.14

         (1) the determination was based on an unrescinded
    
acknowledgment as provided in Article 3 of this Act and the acknowledgment is consistent with the results of genetic testing;
        (2) the adjudication of parentage was based on a
    
finding consistent with the results of genetic testing and the consistency is declared in the determination or is otherwise shown;
        (3) the child was a party or was represented in the
    
proceeding determining parentage by a guardian ad litem, child’s representative or attorney for the child; and
        (4) the child was no longer a minor at the time the
    
proceeding was initiated and was the moving party resulting in the parentage determination.
    (c) In a proceeding for dissolution of marriage, civil union, or substantially similar legal relationship, declaration of invalidity of marriage, civil union, or substantially similar legal relationship, or legal separation, the court is deemed to have made an adjudication of the parentage of a child if the court acts under circumstances that satisfy the jurisdictional requirements of § 201 of the Uniform Interstate Family Support Act, and the final order:
         (1) expressly identifies a child as a “child of the
    
marriage, civil union, or substantially similar legal relationship”, “issue of the marriage, civil union, or substantially similar legal relationship”, or uses similar words indicating that a party to the marriage, civil union, or substantially similar legal relationship is the parent of the child; or
        (2) provides for support of the child by the parties
    
to the marriage, civil union, or substantially similar legal relationship, unless parentage is specifically disclaimed in the order.
    (d) Except as otherwise provided in subsection (b) of this Section, a determination of parentage may be a defense in a subsequent proceeding seeking to adjudicate parentage by an individual who was not a party to the earlier proceeding.
     (e) A party to an adjudication of parentage may challenge the adjudication only under the laws of this State relating to appeal, vacation of judgments, or other judicial review.