In charge from the beginning of the match until the end. Has authority over all other members of the officiating crew. Should have a talk with the second referee before the match starts discussing the issues such as pre-match protocol and anything that will help the match run more smoothly.
Second Referee
Should establish a rapport with the scorekeeper and libero tracker. (If the scorer and libero trackers have a problem or don’t understand something, they should be comfortable enough to ask the second referee for help.)
Scorekeeper
Main job is to make sure the score is always correct. Uses a score sheet to keep track of the game. (If there is a difference between the score on the score sheet and the visual score (flip score, electronic scoreboard, etc.)the visual score should be changed to match the score on the score sheet unless there are mistakes on the scoresheets. Can be determined and corrected.)
Also called the libero tracker sits at the scorer’s table next to the scorekeeper. To record libero placements on a libero tracking sheet. Notifies any fault with libero replacements. Operates the manual scoreboard on the scorer’s table. Checks the score on the scoreboard with the score on the scoresheet
Line Judge
They stand at the corner of the end line that is closest to the right hand referee, diagonally from the corner. Watch the end line and sideline of their respective corners. Main responsibility is to make signals to help out the referees in making judgment calls.