The P classification is a type of temporary employment visa, under United States immigration law, that applies to foreign-based athletes and entertainment groups.
P-1 applies to individual or team athletes, or members of an entertainment group (P-1B) that are internationally recognized. A maximum of 25,000 P visas are issued annually.
P-2 applies to artists or entertainers who will perform under a reciprocal exchange program.
P-3 applies to artists or entertainers who perform under a program that is culturally unique.
P-4 is for the spouse or child of a P-1, P-2, or P-3 alien and who is accompanying, or following to join, the alien.