Document background
The Application for Citizenship Form (Form N-400) is the primary document used in the United States naturalization process. This form must be filed by eligible permanent residents who wish to become U.S. citizens, typically after maintaining permanent residence for at least 5 years (or 3 years if married to a U.S. citizen). The form collects comprehensive information about the applicant's background, including residence history, employment, travel records, family information, and moral character qualifications. It is administered by USCIS and must comply with federal immigration laws and regulations. The application process includes submission of supporting documentation, biometrics appointment, and an in-person interview where applicants must demonstrate English language proficiency and knowledge of U.S. civics, unless eligible for exemptions.
