What is a tennis official?
A person who helps ensure that any given tennis match is conducted under the fairest possible conditions. So ideally, the official is "a friend at court," helpful to players and spectators.
Certified officials are involved in the game of tennis in a variety of roles, ranging from overseeing local junior, adult or senior tournaments, and collegiate events to officiating on court at professional tournaments like the US Open.
The USTA and the USTA Middle States section offer an ongoing program for the recruitment and training of new officials throughout the year.