Duties and responsibilities

Line judges are designated to help decide appealed calls. In the event of an appeal, and after a very brief explanation of the appeal by the referee, the line judges must indicate their opinions of the referee’s call. The signal to show agreement with the referee is arm extended with thumb up, disagreement is shown by thumb pointing down. The signal to show no opinion or that the line judge is unsure, or his/her view was blocked, is arm extended with an open hand and palm down. Line judges shall not signal until the referee acknowledges the appeal and asks for a ruling.