When a document is to be used in a foreign country, it may be necessary to have the document authenticated. An authentication certifies the signature and the capacity of the official who has executed the document. The authentication may also authenticate the seal of the official.
The New York Secretary of State authenticates public documents for use in foreign countries. Only public documents issued in New York State which are signed by either a State Official or a County Clerk will be authenticated. The country of destination determines whether the authentication is in the form of an "Apostille" or a "Certificate of Authentication."