The O2 visa is designated for persons that accompany and assist an O1 visa holder in a specific athletic or artistic event or in the motion picture or television industry. O2 visas are not available for those who accompany or assist O1 visa holders in education, science, or business.
Spouses and children of the O2 visa holder may obtain an O3 visa to enter and remain in the US. The O3 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.