The New Jersey Paternity Opportunity Program (POP) is a program under the Department of Human Services and provides paternity establishment outreach, education, training, guidance, assessment, and technical assistance to birthing hospitals, local registrars, child support offices, community partners and parents. The program's focus is to promote voluntary paternity establishment to ensure that children in New Jersey have legal fathers and the financial and emotional support that all children need and deserve.

POP was created by the State of New Jersey, in response to a federal mandate, to make it easier for parents to acknowledge paternity voluntarily using a simple in-hospital process at the time of birth. Parents can also voluntarily acknowledge paternity after they leave the hospital at the State Office of Vital Statistics and Registry, their local registrar or their local child support office. The program also provides information and resources for more complicated paternity issues to unmarried parents and married or recently divorced parents where a third-party biological father is involved.