State Bar or Arizona - The State Bar of Arizona is a private, nonprofit organization supervised by the Arizona Supreme Court and is responsible for fostering integrity, competence, and public service among its 22,000 plus members. Participation is mandatory to practice law in Arizona. It is administered by a Board of Governors composed of 30 members with various appointments, including the Arizona Supreme Court, the immediate past president, the deans of Arizona's three law schools, and election by Bar members.