If the birth certificate does not list a father, but you have decided on who is the father, you and the father must sign two forms forms.
- Voluntary Declaration of Paternity/Paternity Opportunity Program Declaration (POP), and
- Acknowledgment of Paternity/Parentage.
For more about forms, rights, and responsibilities of the father, read our Info for and About Fathers Guide here.
You must file a court case if
- the birth certificate lists a father, but you want to list a different father, or
- you want to add the father’s name but he will not sign the Acknowledgement of Paternity/Parentage.
Learn more about this at www.cdph.ca.gov.