Affidavit of Parentage

​An Affidavit of Parentage (AOP) is a legal document that allows a parent who gave birth to a child to add the name of the other parent of the child to the birth certificate. The parent who gave birth cannot complete the AOP if she was married at any time during the pregnancy. Once completed and notarized this constitutes a legal finding of parentage and provides for joint natural guardianship of the child.

Download an application for an Affidavit of Parentage:

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To obtain an Affidavit of Parentage, complete the application following the instructions on the second page of the form, have the application notarized and mail the application to the Division of Vital Records, P.O. Box 68760, Baltimore, MD 21215-0036. ​