If, pursuant to the provisions of NRS 128.150, it is necessary to conduct a proceeding to terminate the parental rights of the biological father of a child awaiting adoption, an agency which provides child welfare services shall attempt to obtain from the biological mother of the child an affidavit responding to the inquiry required pursuant to subsection 3 of NRS 128.150.
Nev. Admin. Code § 127.430
NRS 127.230