An undocumented student is a foreign national who: (1) entered the United States without inspection or with fraudulent documents; or (2) entered legally as a non-immigrant but then violated the terms of his or her status and remained in the United States without authorization" (as defined by the National Immigration Law Center).
- An individual born in the United States.
- An individual whose parent is a U.S. citizen.*
- An individual who has been naturalized as a U.S. citizen
- An individual born in Puerto Rico.
- An individual born in Guam.
- An individual born in the U.S. Virgin Islands.
*The Child Citizenship Act, which applies to both adopted and biological children of U.S. citizens, amends Section 320 of the Immigration and Nationality Act (INA) to provide for the automatic acquisition of U.S. citizenship when certain conditions have been met. Specifically, these conditions are:
- One parent is a U.S. citizen by birth or through naturalization;
- The child is under the age of 18;
- The child is residing in the United States as a lawful permanent resident and is in the legal and physical custody of the U.S. citizen parent; and
- If the child is adopted, the adoption must be final.
An individual who owes his sole allegiance to the United States, including all U.S. citizens, and including some individuals who are not U.S. citizens. For tax purposes the term "U.S. national" refers to individuals who were born in American Samoa or were born in the Commonwealth of the Northern Mariana Islands who have made the election to be treated as U.S. nationals and not as U.S. citizens.
A non-US citizen or national who has been granted the right by the USCIS to reside permanently in the United States and to work without restrictions in the United States. Also known as a Lawful Permanent Resident (LPR). All immigrants are eventually issued a "green card" (USCIS Form I-551), which is the evidence of the individual’s LPR status. LPR’s who are awaiting the issuance of their green cards may bear an I-551 stamp in their foreign passports.