Role of Umpire
The umpire is required to exercise judgment in applying the table tennis laws and regulations during the match, such as deciding whether a rally should be a let or whether the players behaviour is acceptable.
When the umpire is officiating alone, his decision is final on all questions raised during a match, including decisions on edge balls and service. The umpire is also responsible for the timing the duration of play.
The local umpires are required to pass the umpire test and volunteer at a local level before proceeding to international tournaments.