A. An acknowledgment of paternity and a denial of paternity may be contained in a single document or may be signed in counterparts, and may be filed separately or simultaneously. If the acknowledgment and denial are both necessary, neither is valid until both are filed.B. An acknowledgment of paternity or a denial of paternity may be signed before or after the birth of the child.C. Subject to Subsection A of this section, an acknowledgment of paternity or denial of paternity takes effect on the birth of the child or the filing of the document with the bureau, whichever occurs later.D. An acknowledgment of paternity or denial of paternity signed by a minor is valid if it is otherwise in compliance with the New Mexico Uniform Parentage Act.