To use this form you must be at least 18 years old AND you must fit within ONE of the following four categories:

1. You have been a Lawful Permanent Resident for at least 5 years.
   
   
2. You have been a Lawful Permanent Resident for at least 3 years AND:
   
• You have been married to and living with the same U.S. citizen for the last 3 years; AND
• Your spouse has been a U.S. citizen for the last 3 years.


3. You are a person who has served in the U.S. Armed Forces AND:
   
• You are a Lawful Permanent Resident with at least 1 year of U.S. Armed Forces service and you are either on active duty or filing within 6 months of honorable discharge; OR
• You served in the Armed Forces for less than 1 year OR you served in the Armed Forces for 1 year or more, but you were discharged more than 6 months ago. Under this class, you must also have 5 years as a Permanent Resident without leaving the U.S. for trips of 6 months or longer. (Note: If you were out of the country as part of your service, this time out of the country does not break your "continuous residence." It is treated just like time spent in the United States.); OR
• You served during a period of recognized hostilities and enlisted or re-enlisted in the United States (you do not need to be a Lawful Permanent Resident).


4. You are a member of one of several other groups who are eligible to apply for naturalization (for example, persons who are nationals but not citizens of the United States).

Additional Requirements:

1. Demonstrating that you have good moral character;
   
2. Demonstrating knowledge of U.S, government and history (civics);
   
3. Demonstrating attachment to the U.S. by taking an oath of allegiance to the U.S. Constitution;
4. A period of continuous residence and physical presence in the United States;
   
5. Residence in a particular state or district prior to filing; and
   
6. An ability to read, write, and speak English.

However some of these requirements may be modified or waived if you come within certain classes of individuals. For more information on eligibility criteria, please consult the Naturalization Form FAQ or Eligibility Chart.

If you are in doubt over whether or not you are eligible for American citizenship, please feel free to take our Eligibility Quiz. Simply answer the questions and you will be told whether or not you are eligible for American naturalization.