NRS 126.690: Proceedings to adjudicate parentage: Requirements.

1. Except as otherwise provided in subsection 2, the legal spouse or domestic partner of a woman who gives birth to a child by means of assisted reproduction may not challenge the parentage of the child unless:

(a) Within 2 years after learning of the birth of the child, a proceeding is commenced to adjudicate parentage; and

(b) The court finds that, before or after the birth of the child, the legal spouse or domestic partner did not consent to the assisted reproduction.

2. A proceeding to adjudicate parentage may be maintained at any time if the court determines that:

(a) The legal spouse or domestic partner did not provide gametes for, or consent to, the assisted reproduction by the person who gave birth;

(b) The legal spouse or domestic partner and the woman who gave birth to the child have not cohabited since the probable time of the assisted reproduction; and

(c) The legal spouse or domestic partner never openly held out the child as his or her own.