US flag Official website of the Department of Homeland Security

For U.S. Citizens/Lawful Permanent Residents

If you are a U.S. citizen traveling abroad, get the information you need to smoothly navigate your return back into the United States, including:

If you are a lawful permanent resident, you may be eligible to become a U.S. citizen after five years of becoming a lawful permanent resident, or three years if you are married to a U.S. citizen. More information on the naturalization process and available citizenship materials can be found here:

Last modified: 
February 1, 2018