REQUIREMENTS FOR NATURALIZATION
If an individual has been a Legal Permanent Resident in the U.S. for 5 years (or 3 years as a spouse of a U.S. citizen), you may apply for U.S. citizenship through naturalization if you meet the following requirements:
Applicants for naturalization must be at least 18 years old.
In general, applicants for naturalization must have been lawfully admitted to the United States for permanent residence and must have resided in the U.S. as permanent residents for a minimum of five years prior to filing, with no single absence from the U.S. of more than one year.
Legal permanent residents who are married to U.S. citizens or have served in the armed forces of the U.S. can naturalize in less time. The law requires that an applicant be physically present in the U.S. for at least half of the residency period that applies to his or her case.
The applicant must pledge loyalty to the U.S.
Good Moral Character
An applicant must show that he or she has been a person of good moral character for the statutory period (typically five years or three years if married to a U.S. citizen or one year for Armed Forces expedite) prior to filing for naturalization. Certain criminal convictions or conduct may prevent an applicant from showing that (s)he is a person of good moral character.
Applicants for naturalization must be able to speak, read, write and understand simple words and sentences in the English language. Certain longtime elderly permanent residents and applicants with certain disabilities are exempt from the English language requirement.
History and Government
Applicants are required to pass a short test on the U.S. history and government.
Acquisition or Derivation
Some individuals may acquire U.S. citizenship through their parents depending on the law in effect when they were born. Usually, at least one parent should be an U.S. citizen, and have lived in the U.S. or its possessions for a specific period. The rules also vary depending on whether the child was born within or outside of the U.S.