Notwithstanding the provisions of La. Rev. Stat. 40:34.2(2)(a) and (c) and 34.5(A), the husband or former husband presumed to be the father of the child, the mother, and the biological father of the child may execute a three-party acknowledgment of paternity pursuant to Civil Code Article 190.1 on the form provided by the Louisiana Department of Health. Upon receipt of that form and a certified report of blood or tissue sampling which indicates by a ninety-nine and nine-tenths percentage point threshold probability that the biological father is the father of the child, the state registrar shall:

            (1) For the father of the child, record the full name of the biological father.

            (2) For the surname of the child, record the maiden name or surname of the mother, at her discretion. However, if the biological father and the mother agree, the state registrar shall record as the surname of the child the maiden name or surname of the mother, the surname of the biological father, or a combination of the surname of the biological father and the maiden name or surname of the mother.

            Acts 2018, No. 21, §1, eff. May 7, 2018.