A Guide to Naturalization

What Is Naturalization?
Naturalization is commonly referred to as the manner in which a person not born in the United States voluntarily becomes a U.S. citizen.

What Is This Guide for?
U.S. Citizenship and Immigration Services (USCIS) created this Guide to provide better and more consistent information to people interested in naturalization. It is written mainly for people 18 years or older who want to become citizens. Please take the time to review this information to make sure that you are eligible to apply for naturalization.