Illinois Statutes Chapter 750. Families § 46/602. Standing

(a) the child;

(b) the mother of the child;

(c) a pregnant woman;

(d) a man presumed or alleging himself to be the parent of the child;

(e) a woman presumed or alleging herself to be the parent of the child;

(f) the support-enforcement agency or other governmental agency authorized by other law;

(g) any person or public agency that has physical possession of or has custody of or has been allocated parental responsibilities for, is providing financial support to, or has provided financial support to the child;

(h) the Department of Healthcare and Family Services if it is providing, or has provided, financial support to the child or if it is assisting with child support collections services;

(i) an authorized adoption agency or licensed child welfare agency;

(j) a representative authorized by law to act for an individual who would otherwise be entitled to maintain a proceeding but who is deceased, incapacitated, or a minor; or

(k) an intended parent.