N-400 at Office of Field Operations Management
Form N-400, Application for Naturalization, is filed with USCIS to apply for US citizenship.
Verified from USCIS on 2026-06-05
How N-400 compares to other forms at the Field Office Mobile
Three other forms share the Field Office Mobile docket: N-600 (certificate of citizenship) at 5.5 to 10.5 months, I-485 (adjustment of status) at 18.0 to 25.0 months, and N-600K (citizenship under section 322) at 23.5 to 24.0 months. N-600 is fastest. I-485 has the widest range. N-400 clears in 13.0 to 15.0 months, the second-fastest of the four forms here and a 2-month band. The N-400 floor opens 7.5 months above the office's quickest form.
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Frequently Asked Questions
How long does N-400 take at Office of Field Operations Management?
Current processing time for N-400 at Office of Field Operations Management is 13 months to 15.5 months, based on the latest data from USCIS.
When was N-400 processing time data last updated?
The data was last updated on 2026-06-05, sourced from USCIS.
What factors affect N-400 processing time?
Processing times vary based on application volume, case complexity, security checks, and the completeness of submitted documentation. Times shown are estimates and individual cases may differ.