Immigration Terms and Definitions

Country of Citizenship
The country in which a person is born (and has not renounced or lost citizenship) or naturalized and to which that person owes allegiance and by which he or she is entitled to be protected.

Border Crosser
An alien resident of the United States reentering the country after an absence of less than six months in Canada or Mexico, or a nonresident alien entering the United States across the Canadian border for stays of no more than six months or across the Mexican border for stays of no more than 72 hours.

Amerasian Act
Immigrant visas are issued to Amerasians under Public Law 100-202 (Act of 12/22/87), which provides for the admission of aliens born in Vietnam after January 1, 1962, and before January 1, 1976, if the alien was fathered by a U.S. citizen. Spouses, children, and parents or guardians may accompany the alien.

Immigration Form I-175
Application for Nonresident Alien's Canadian Border Crossing Card

Immigration Form I-90
Application to Replace Permanent Resident Card

Immigration Form I-864A
Affidavit of Support Contract Between Sponsor and Household Member

Nonimmigrant temporary worker classes O-1, O-2, O-3
Temporary workers with extraordinary ability or achievement in the sciences, arts, education, business, or athletics; those entering solely for the purpose of accompanying and assisting such workers; and their spouses and children

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.

Country of Former Allegiance
The previous country of citizenship of a naturalized U.S. citizen or of a person who derived U.S. citizenship.

Priority Date
In the USCIS Immigrant visa petition application process, the priority date is the date the petition was filed. If the alien relative has a priority date on or before the date listed in the visa bulletin, then he or she is currently eligible for a visa.