INFORMAL OFFICIALS’ SIGNALS: As mentioned in the prematch section of the manual, informal hand signals used to enhance the match may be used for communication by the second referee (R2) to the first referee (R1). Such additional signals might be: 1. Set/Match Point: Place the index finger flat against the shoulder closest to the team that has set point (R1 nods head to acknowledge seeing the R2’s signal.) 2. Four Hits: Discreetly give four-hit signal in front of chest. 3. Identifying Possible Back-Row Player Violation: Discreetly show back-row attacker or back-row blocker signal in front of chest. 4. Position of Setter Prior to Serve: Second referee uses discreet signal with his/her hand on each leg, midsection or chest to identify position (front row or back row) of each team’s setter. Use of and type of signal may be decided in prematch discussion between the referees. Examples are: 2 fingers = back-row setter 1 finger = front row setter Little finger = back-row setter Thumb = front row setter Discreet back row attack signal in middle of chest These are not used on every rally, only when needed for improved communication.
INFORMAL OFFICIALS’ SIGNALS, continued 5. Illegal Hit:: The second referee is to assist the first referee in calling illegal hits by use of discreet signals in front of the chest. Only when the second referee is certain the first referee’s view of the play is blocked does the second referee blow the whistle to call a ball handling violation. 6. Ready to Play: The second referee signals ready to play to the first referee after an R2 interruption (injury, substitution, time-out or scorekeeping clarification) by extending the arm, open hand perpendicular to the floor with the outside hand on the receiving team's side. The R2 should be in position on the receiving team's side, whistle in mouth, when the Ready to Play signal is given. 7. Net Foul/Center Line Violations: Second referee signals violation, then signals number to first referee with right hand as base hand – Nos. 0-9: right or right/left combination; No. 10: right hand closed fist; Nos. 11-19: right fist then digits successively; Nos. 20 or more: first digit with right hand and second digit with right or both hands if necessary. Both R2, then R1 signal offender’s number, then both signal “point”.