What is a typical interview length?

The naturalization interview typically lasts 20 to 30 minutes, although the duration varies based on the complexity of the case, the number of supporting documents to review, and the experience of the USCIS officer. Simple cases with straightforward residence and employment histories, no criminal record, no extended international travel, and clear documentation may finish in 15 to 20 minutes. More complex cases involving extensive travel, multiple marriages, criminal arrests requiring document review, requests for medical disability waivers, requests for modified oaths, or unusual employment histories can run 45 minutes to over an hour.

The interview structure is consistent across cases. The officer first administers an oath that the applicant will tell the truth, then reviews Form N-400 line by line, asking the applicant to confirm or correct each answer. The officer pays particular attention to biographical information, residence and employment history for the past five years, marital and parental history, time outside the United States, military service, criminal history, allegiance, and good moral character. During this review, the officer is also informally assessing the applicant's English speaking and understanding ability.

The officer then administers the civics test (up to ten questions, six correct to pass), the English reading test (up to three sentences, one correct to pass), and the English writing test (up to three sentences, one correct to pass). Applicants who qualify for language exceptions or have an approved Form N-648 may be exempt from some of these tests.

The officer reviews supporting documents, may request additional documents through Form N-14 (Request for Additional Information), and at the end of the interview gives the applicant Form N-652 indicating whether the application is recommended for approval, continued, or denied. Applicants should arrive prepared, dress respectfully (business or business casual is the norm), bring all original documents organized in a folder, and answer questions clearly and directly. Officers value preparedness and honesty; admitting that one does not know an answer to a civics question is treated more favorably than guessing or making up information.