Immigration Terms and Definitions

Principal Alien
The alien who applies for immigrant status and from whom another alien may derive lawful status under immigration law or regulations (usually spouses and minor unmarried children).

Temporary Worker
An alien coming to the United States to work for a temporary period of time. The Immigration Reform and Control Act of 1986 and the Immigration Act of 1990, as well as other legislation, revised existing classes and created new classes of nonimmigrant admission.

Legitimated
Most countries have legal procedures for natural fathers of children born out of wedlock to acknowledge their children. A legitimated child from any country has two legal parents and cannot qualify as an orphan unless, only one of the parents is living, or both of the parents have abandoned the child

Country of (Last) Residence
The country in which an alien habitually resided prior to entering the United States.

Advance parole
Authorized at an USCIS District office in advance of alien’s arrival; may be issued to aliens residing in the United States in other than lawful permanent resident status who have an unexpected need to travel and return, and whose conditions of stay do not otherwise allow for readmission to the United States if they depart.

Immigration Form I-765
Application for Employment Authorization

Immigration Form I-698
Application to Adjust Status From Temporary to Permanent Reside

Immigration Act of 1990
Public Law 101-649 (Act of November 29, 1990), which increased the limits on legal immigration to the United States, revised all grounds for exclusion and deportation, authorized temporary protected status to aliens of designated countries, revised and established new nonimmigrant admission categories, revised and extended the Visa Waiver Pilot Program, and revised naturalization authority and requirements

Legalized Aliens
Certain illegal aliens who were eligible to apply for temporary resident status under the legalization provision of the Immigration Reform and Control Act of 1986.

Permanent Resident
Any person not a citizen of the United States who is residing in the U.S. under legally recognized and lawfully recorded permanent residence as an immigrant. Also known as "Permanent Resident Alien", "Lawful Permanent Resident," "Resident Alien Permit Holder," and "Green Card Holder."