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Where neutral assistant referees are not available, the referee may use club linesmen.  Club linesmen should report to the referee before the start of the game for instructions.  The referee should make it clear that the decision of the referee is final and must not be questioned.  The relationship of the club linesmen to the referee must be one of assistance, without undue interference or any opposition.  Club linesmen are to signal only when the ball is entirely over the goal line or touch line.