Spouses and children of the P-1 visa holder MAY obtain a P-4 visa to enter and remain in the US. The P-4 visa holder may attend school but if he or she WISHES to work, he or she must change his or her status to obtain a work visa. 

The P-4 classification is ISSUED to immediate relatives of P-1, P-2, and P-3 Visa holders who are accompanying or following to join the principal alien, but they are not afforded any right to be employed while in the United States while HOLDING such visa status.

Spouses and children of the P-1 visa holder may obtain a P-4 visa to enter and remain in the US. The P-4 visa holder may attend school but if he or she wishes to work, he or she must change his or her status to obtain a work visa. 

The P-4 classification is issued to immediate relatives of P-1, P-2, and P-3 Visa holders who are accompanying or following to join the principal alien, but they are not afforded any right to be employed while in the United States while holding such visa status.