New York Adoption Information Registry Biological Sibling Registration Form (DOH-4181)
Official state formAdoptionForm DOH-4181Free downloadLast verified November 10, 2026
Notarized form a biological sibling of an adoptee uses to register with the New York State Adoption Information Registry. It is returned to the Registry at the Department of Health in Albany.
Who can use this form
- A biological sibling of an adoptee.
- The registration can be accepted only if the adoptee was born and adopted in New York State.
- The signature must be notarized, with the notary's stamp or raised seal.
What to send with it
- The completed form, with as much information as possible about you, the adoptee and the adoption.
- A copy of your birth certificate listing your parents' names.
- How you are related to the adoptee, such as the name of the common birth parent.
- The box checked if you do not want the information released by the agency that handled the adoption.
Where to send it
- Mail to
- New York State Department of Health Adoption Information Registry P.O. Box 2602 Albany, NY 12220-2602
- State fee
- Not provided
- Typical processing
- Not provided
- Form revision
- 9/2000
- Source
- Official government page