The O-1 nonimmigrant category is for the employment of individual aliens who have achieved and sustained national or international acclaim for extraordinary ability in the sciences, arts, education, business or athletics or aliens who have who have demonstrated a record of extraordinary achievement in the motion picture and television industries. The category permits an employer to petition USCIS for an alien to come to the United States on a temporary basis to continue to work within his or her area of extraordinary ability or achievement. It also permits family members to join the alien.