Establishing Paternity

When a child is born, the mother's name automatically goes on the birth certificate. There is not likely to be any doubt who the mother is. But there may be questions about the father.

Did you Know?

If the parents are married, the husband's name will be placed on the birth certificate, unless he denies that he is the baby's biological father. But in California, if the parents are not married, no father's name appears on the birth certificate unless the baby's parents take steps to establish legal fatherhood. This is also called establishing paternity.

The legal father is the child's father in the eyes of the law, with all the rights and responsibilities of parenthood. The presumed father becomes the legal father automatically unless he denies paternity. An unmarried man or a man other than the mother's husband has to establish paternity to become a legal father.

A simple test can establish with better than 99% certainty that a man is or is not the biological father of a child. This is called paternity testing, and it can be ordered by a court.

• The parents can both sign a form called an Acknowledgement of Paternity (POP)
• The parents can go to the Child Support Services Office together and sign an Stipulated Agreement establishing paternity and setting a child support amount.
• A law suit can be filed in court, asking that an alleged father be named to legal father.

The first two ways (POP and Stipulated Agreement) are for parents who both want to establish legal fatherhood. The third way is for parents who are not in agreement. The court rules on the law suit, establishing or denying paternity based on evidence presented to the court. Once paternity has been established, a court may decide issues of custody, visitation, and the payment of child support in the event that the parents separate.