Apostille & Document Authentication

Generally, no. USCIS requires only a certified translation for foreign-language documents submitted with immigration applications (per 8 CFR 103.2(b)(3)) — no apostille or consular legalization is needed. However, if processing through a U.S. embassy or consulate (consular processing), the post may require additional authentication for certain documents. Additionally, if your documents must be submitted to a U.S. state-level agency (e.g., courts, state government departments), that agency may require an apostille.

Yes. China officially acceded to the Hague Convention on March 8, 2023, with entry into force on November 7, 2023. Public documents issued in China (such as birth certificates, marriage certificates, academic credentials, police clearance certificates, and corporate documents) can now receive an apostille from the Consular Department of China's Ministry of Foreign Affairs or its authorized local foreign affairs offices. This replaces the previous consular legalization process and significantly simplifies document authentication between the U.S. and China, saving an estimated CNY 300 million annually in processing costs for businesses and individuals.

Notarization is the process by which a Notary Public verifies the identity of a document signer and witnesses the signature — it is the first step in document authentication. An apostille is the subsequent certification by the Secretary of State or the Department of State authenticating the notary's signature (or the signature of the official who issued a public document), making the document directly recognizable in Hague Convention member countries. In short: notarization verifies the authenticity of a signature; an apostille verifies the official nature of the notarization or public document for international use.

The general process is the same, but specific details vary by state. All states issue apostilles through their Secretary of State's office, but fees ($2–$25), processing times, and whether online or mail-in applications are accepted differ. Large states such as California, New York, and Texas handle high volumes but have well-established processes. Some states (e.g., California) support online applications and electronic apostilles. Check the Secretary of State website for the state that issued the document for specific requirements.

Federal documents cannot receive an apostille from a state Secretary of State. Instead, you must apply to the U.S. Department of State's Office of Authentications. Applications are submitted by mail at a cost of $20 per document. Processing time is typically 4–8 weeks. Submit the original or certified copy, an application form, and the fee. The Office of Authentications address can be found on the travel.state.gov website.

For non-Hague Convention countries, documents must go through the full consular legalization chain: (1) Notarization — the document is notarized by a Notary Public; (2) State authentication — the County Clerk or Secretary of State authenticates the notary's signature; (3) Federal authentication — the U.S. Department of State's Office of Authentications authenticates; (4) Embassy/consulate legalization — the destination country's embassy or consulate in the U.S. provides final legalization. Each step requires completion of the prior step, and the entire process typically takes 6–12 weeks.