How Do I Know Which USCIS Service Center N400 Is Processing

+1 800-375-5283
The USCIS form N 400 is designated for Naturalization or the attainment of naturalized citizenship in the USA. The processing time of the N 400 depends on factors such as the USCIS Office where the case is filed, the accuracy and proper submission of the application, etc.

How to Submit Form N 400 for Quick Processing Time

Upon filing the case, it typically takes 2-3 weeks to receive confirmation of receipt via email. If the application is not filed accurately, it may be rejected, or individuals will receive a notice requesting evidence.

Biometrics Appointment Notice

An individual will receive a notice to schedule a biometrics appointment at a nearby USCIS Application Support Center to conduct criminal background checks and security clearance. The appointment is usually scheduled within 5 to 8 weeks after the case is filed. Individuals are required to bring their Passport or national ID, driver's license, Military photo identification, or State-issued photo ID Card for verification.

Appointment for Naturalization Interview

Upon successful completion of biometrics testing, individuals may receive a call to schedule a Naturalization Interview. This process typically takes 5-9 months after filing.

Oath Ceremony Notice

If the interview is successful, USCIS will send a notice for the oath ceremony within 1 to 4 weeks.

Oath of Allegiance Ceremony

This ceremony typically takes place 8 to 12 months after filing, during which individuals will be granted a green card and receive a Certificate of Naturalization.

Checking Processing Time Status

Individuals can check the status of N400 processing time online at by selecting the form number from the drop-down option and providing service center details.

Near Me USCIS Location to Contact

USCIS Application Support Center (ASC)

285 N Broad St, Elizabeth, NJ 07208, United States
+1 800-375-5283
Monday to Friday 6:00 a.m. to 6:00 p.m.

USCIS California Service Center

24000 Avila Rd, Laguna Niguel, CA 92677, United States
+1 800-375-5283
Monday to Friday 8:00 a.m. to 4:00 p.m.

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