"Parentage" is the recognition of a parents legal relationship to a child.
The Parentage Opportunity Program (POP) is a voluntary program for eligible parents to establish legal parentage free of charge. This significantly decreases the time and money required to establish legal parentage through the lengthy and expensive court process. A filed Voluntary Declaration of Parentage (VDOP) has the same force and effect as a judgement for parentage issued by a court.
To see if you are eligible to sign a Voluntary Declaration of Parentage, go to Establishing Legal Parentage | CA Child Support Services.
Or visit Parentage | (ca.gov) to learn more about the Parentage Opportunity Program.
Also, see Parentage Opportunity Program - YouTube.