"Video referee assistant"

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The Assistant video referee (English: video assist referee, VAR) is the assistant football referee, who examines the decisions of the referee race using immediate repetition and audio for communication. In 2018, VAR were written in the Rules of the game by the International Football Council (IFAB), following tests at various important events.

Procedure

There are four types of decisions that can be reviewed.

Goal and whether there was a violation during the attack phase of the game, such as offside or foul.
Penalty decisions (other than those below)
Straight red cards (second yellow cards cannot be revised)
Wrong player in red or yellow card hint

The standard for overturning the referee's original decision is that there was a "clear error", sometimes extended to "clear and obvious error".

The process begins with the assistant referee/video referee and the deputy video referee (AVAR) examining the disputed phase, on several screens in the video mode (VOR) with the help of the repeat operator. This procedure may be activated by the arbitrator requesting the review or by the VAR performing "control" to determine whether it should recommend a review to the referee. If VAR finds nothing during the audit, then communication with the referee is not necessary, which is called "silent control". If VAR believes there was a possible clear mistake, the referee will be informed of this decision. The arbitrator may either (a) change the decision on the advice of VAR, or (b) carry out a review on the pitch (OFR) by going to a designated point on the sideline, called the referee review area, to examine the video with the help of the review assistant or (c) to decide that he is confident of the original decision and does not perform OFR. The referee can stop the race to reverse a decision or conduct an OFR, but should not do so when either group engages in a possibility of good attack.

The official signal for a video review by the referee, is the formation of a rectangular contour formed with the indicators of 2 hands (pointing at a video screen). This precedes any OFR, as well as any change in the original decision. Players who request video review by over-moving rectangle formation must accept a yellow card. Players entering the area where the referee conducts an OFR, must also accept a yellow card and the members of the team who do so must be expelled.

There are instructions to be followed by the referee and VAR to carry out a video review. For example, slow motion should be used only for contact point infringements