Certain guidelines determine whether or not one is eligible to obtain U.S. citizenship. They include: 1. Age: Applicant must be at least 18 years old; Residency: applicant must be a permanent resident and have resided in the U.S. continuously for the past three years; 2. Good Moral Character: Full disclosure of all facts pertaining to one’s character is necessary, including an applicant’s criminal history; 3. Attachment to The Constitution: A demonstrated commitment to upholding the U.S. Constitution’s principles; 4. Language: The ability to read, write, and speak some English; U.S. Government and History Knowledge: Passage of the Immigration Test; Taking the Oath of Allegiance.