What does the scorer record, and how are rotation errors caught?

The scorer sits at the scorer's table, facing the 1st referee, and fills in the score sheet working with the 2nd referee (Rule 27). The scorer uses a buzzer to signal irregularities to the referees.

Before the match and each set:

• record match and team details, including the liberos' names and numbers, and get the captains' and coaches' signatures;
• record each team's starting line-up from the line-up sheet. If the sheets don't arrive on time, tell the 2nd referee at once.

During the match:

• record the points scored;
• control the serving order of each team, and tell the referees of any error immediately after the service hit;
• acknowledge and announce substitution requests with the buzzer, count them, and record substitutions and time-outs, informing the 2nd referee;
• tell the referees about any request that is out of order;
• announce the end of each set, and the 8th point in the deciding set (when the teams change ends);
• record warnings, misconduct and delay sanctions, and improper requests;
• record other events as the 2nd referee instructs, such as exceptional substitutions, recovery time, prolonged interruptions, external interference and libero re-designation;
• control the interval between sets.

When a rotational fault is found (Rule 7.7): the scorer stops play with the buzzer. The opponent gets a point and service, and the rotation is corrected. The scorer should also find the exact moment the fault was committed: every point the faulty team scored after it is cancelled, and the opponent's points stand. If that moment can't be found, only the point and service are awarded.

After the match: record the final result, write down any authorised protest, sign the sheet, then get the captains' and referees' signatures.