(a) Completed forms for acknowledgment of parentage and denial of parentage shall be filed with the Department of Health.
(b) An acknowledgment of parentage or denial of parentage may be signed before or after the birth of a child.
(c) An acknowledgment of parentage or denial of parentage takes effect on the date of the birth of the child or the filing of the document with the Department of Health, whichever occurs later.
(d) An acknowledgment of parentage or denial of parentage signed by a minor shall be valid provided it is otherwise in compliance with this title.