Form N-400, also known as the Application for Naturalization, is the form used by lawful permanent residents (also known as green card holders) to apply for U.S. citizenship. The form is used to provide information about the applicant's eligibility for citizenship, background information, and residency history in the United States.To be eligible to apply for Naturalization, a person must generally meet the following requirements:
- Have been a lawful permanent resident for at least five years (or three years if married to a U.S. citizen, see below)
- Be able to demonstrate good moral character
- Pass an English and Civics test, unless you fall under the exception requirements available for certain individuals based on age and disability
- Be willing to take the Oath of Allegiance to the United States
Citizenship Based on Marriage
To file Form N-400, Application for Naturalization, based on marriage to a U.S. citizen, there are specific qualifications that you need to meet. Here are the general requirements:
- You must be married to a U.S. citizen and have been living in a marital union for at least three years. The U.S. citizen spouse must have been a U.S. citizen during the entire three-year period.
- You must have a valid green card and have been a lawful permanent resident of the United States for at least three years.