[§584A-605] Adjudicating parentage of child with adjudicated parent. (a) If a child has an adjudicated parent, a proceeding to challenge the adjudication, brought by an individual who was a party to the adjudication or received notice under section 584A-201, shall be governed by the rules governing a collateral attack on a judgment.
(b) If a child has an adjudicated parent, the following rules shall apply to a proceeding to challenge the adjudication of parentage brought by an individual, other than the child, who has standing under section 584A-203 and was not a party to the adjudication and did not receive notice under section 584A-201: