General Information
- It is the job of the referee, assistant referees, and fourth official to perform their responsibilities as efficiently, effectively, and unobtrusively as possible. While every official must develop his or her own style of conduct, it is the objective of this Procedures Guide to keep such individual styles within a common boundary of standard practices.
- An official’s style should not interfere with the flow of the game, result in unclear communication of information to players or fellow officials, or cause undue attention to be drawn to the official and away from the match itself.
- Referees are reminded that the whistle is a tool of communication and not merely a convenient signaling device. Whistles should be selected carefully for the match conditions, age of players, and other factors. It is neither required nor expected that the whistle be used for all stoppages and restarts of play.
- A whistle demands attention and should be blown when such attention is needed. Uncontested stoppages (as when a ball clearly leaves the field) should not be whistled — a voice and/or hand signal by the referee or a flag by the assistant referee will normally be sufficient.
- Referees should also be alert to the need for variations in the length, force, and tone of their use of a whistle to indicate different types of stoppages or different degrees of concern for the event that has just occurred.
- In the diagonal system of control, referees should take every opportunity of less activity on the field to make eye contact with each of the assistant referees, to confirm the location of players relative to the officials, and to observe portions of the field which may not have received recent attention.
- All referee hand signals are given with the arm straight at the indicated angle or direction, with the fingers fully extended. Assistant referee flag signals follow the same pattern, with the flag held as an extension of the arm.

