A P4 visa may be obtained by a P1 visa, P2 visa or P3 visa holder’s spouse and minor children. A P4 visa holder may remain in the US as long as the P1 visa, P2 visa or P3 visa holder remains in legal status. A P4 visa holder may change his or her status in the US.
A P4 visa holder may not accept employment. He or she must obtain a work visa.
A P4 visa holder may engage in full or part time study.