To be eligible to apply, you need to:

  • Be at least 18 years old
  • Have been a lawful permanent resident for at least the last five years (or three years, if married to a U.S. citizen).
  • Have been present in the U.S. for 2.5 of the past five years (or 1.5 of the past three, if married to a U.S. citizen), and have not been outside the U.S. for one year or more within the last five years (or three years, if married to a U.S. citizen).

For more information go to the United States Citizenship and Immigration Website.