(a) If the parents are not married when a child is born, paternity must be established before a child and medical support obligation can be established.
(b) The Office of Child Support Enforcement is not required to attempt to establish paternity in any case involving incest, forcible rape, or any case in which a legal proceeding for adoption is pending, if, after review and approval of an office Field Manager, it is determined that to do so would not be in the best interest of the child.
(c)
(1) If the paternity of a child has not been established at the time a case opens for child support services, the custodial party must identify the father of the child.
(2) The office will:
(A) Notify the putative father that it is alleged that he is a biological parent of a child; and
(B) Provide an opportunity for the parties to voluntarily acknowledge paternity or request genetic testing to determine if he is the father of the child.