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Apostille or Authentication Process for Certificate of Naturalization

Updated: Mar 1, 2023

The Certificate of U.S. Naturalization or Form N-550 or Form N-570, is a document issued by Homeland Security (U.S. Immigration and Naturalization Services) that proves an individual's U.S. Citizenship through the process of naturalization (a legal process of obtaining a new nationality).

Certificate of Naturalization Apostille

It is a federal-issued document. All U.S. Federal documents are processed through the Secretary of D.C. or the U.S. Department of State.

The authentication process is as follows:

1. Contact your local USCIS office to obtain a certified copy of your certificate

2. Send the document to the right government agencies for Apostille or Authentication

If the destination country is a Hague Apostille Country, an Apostille certificate is required.

If the destination country is a Non-Hague Apostille Country, a multi-step authentication process is required to finally get the embassy legalization.

Simply place the order based on your situation and mail us the certified copy of your Certificate of Naturalization. We will contact the right people and departments to apostille or authenticate it.

📮 Mailing Address

American Notary Service Center
7512 Diplomar Drive, Suite 101,
Manassas, VA 20109

The apostille and authentication process can be complicated. If you don't want to spend a lot of time and energy getting into it, your best bet is to let a professional do it for you. Once we receive your order and document, it'll be processed as soon as possible.

Besides Certificate of Naturalization, we also provide apostille, authentication, and embassy legalization services for other personal documents and corporate documents issued in 50 states and DC.


American Notary Service Center Inc. provides fair, fast, confidential, and professional document notarization and certification services for our clients. We also provide various assistance services to small businesses led by socially and economically disadvantaged groups. Our service helps small businesses obtain federal government contracts, gain a foothold in the market, and boost their sales. For more information, please visit our website at, and contact us by calling 202-599-0777 or by email at


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