What is an Acknowledgment of Paternity?
An Acknowledgment of Paternity (AOP) is a legal form signed by a man and the child’s mother that states (under penalty of perjury) that the man is the child’s genetic father. An AOP is usually used when the parents aren’t married but agree on the identity of the child’s father.
When the completed AOP is filed with the Texas Vital Statistics Unit, the genetic father becomes the child’s legal father with all the rights and duties of a parent.
Exception: If the child’s mother is married to someone else when the child is born (or the child is born within 300 days of the date of divorce) then the husband (or ex-husband) is the child’s presumed father. You cannot use the AOP form to establish paternity unless the presumed father also signs a Denial of Paternity (DOP).