The "visitor" visa is a nonimmigrant visa for persons desiring to enter the United States temporarily for business - B-1, for pleasure or medical treatment (B-2), or combination of both (B-1/B-2) purposes.

For the most part, a resident of an outside nation who wishes to visit the United States must first acquire a nonimmigrant visa for impermanent sit tight. The visa permits an outside national, to go to the United States port-of section and ask for consent of the U.S. migration reviewer to enter the ...