Affidavit of birth
An affidavit of birth (also known as a birth affidavit or affidavit for birth certificate) is a document submitted to the court, the state or another institution to verify, under oath, a person’s birth information. An affidavit may be needed if your birth record is incomplete, or you do not have one at all, and you need to apply for a U.S. passport, visa, or other official documentation.
The U.S. Government’s form DS-10 is the official affidavit of birth form. It must be accompanied by a photocopy of both sides of the applicant’s photo ID and an official statement by the appropriate agency verifying that the applicant does not have any complete birth records on file. In order to use it as a substitute for a birth certificate, the affidavit must be signed and notarized.
You may also want to read: How to find public vital records

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