Utah Code § 81-5-602: Standing to maintain proceeding.

Subject to Part 3, Voluntary Declaration of Paternity, and Sections 81-5-607 and 81-5-609, a proceeding to adjudicate parentage may be maintained by:

(1) the child;

(2) the birth mother of the child;

(3) a man whose paternity of the child is to be adjudicated;

(4) the child support services agency or other governmental agency authorized by other law;

(5) an authorized adoption agency or licensed child-placing agency;

(6) 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 child; or

(7) an intended parent under Part 8, Gestational Agreement.