What Is VAR in Soccer? The Video Assistant Referee Explained.
VAR does not eliminate bad calls. It was never designed to. VAR exists specifically to correct “clear and obvious errors” in four defined categories. Everything outside those categories — every tackle that might have been a foul, every handball that might have been accidental, every penalty that looked soft — stays as the referee called it. Understanding that distinction is the key to understanding why VAR generates more debate than any other officiating change in the modern history of the sport.
VAR stands for Video Assistant Referee. It is a system where a team of dedicated video officials, working from a Video Operations Centre (VOC), monitor every match and alert the on-field referee to potential errors in specific situations. The on-field referee retains final authority over every decision. VAR does not replace the referee — it exists to assist. VAR was formally approved by the International Football Association Board (IFAB) in 2018 and deployed at the FIFA World Cup in Russia that same year. It has been used at every World Cup since and is now standard across the top leagues in Europe, the Americas, and at FIFA’s major tournaments.
VAR appears in MLS, Liga MX, and major international competitions including the World Cup. The specific implementation and technology level varies by competition — the connected ball sensor, for example, is used at FIFA tournaments but not necessarily in every domestic league. For the broader context of how MLS and Liga MX operate and where VAR sits in the North American soccer landscape, the MLS vs Liga MX explainer covers the competitive structure both leagues operate in.
——— WHAT VAR REVIEWS ———
The Four Categories VAR Can Review: Goals, Penalties, Red Cards, and Mistaken Identity
VAR does not review every decision in a match. It reviews only decisions that fall into four specific categories. Outside these four categories, the on-field referee’s decision stands regardless of what the video footage shows.
THE FOUR VAR REVIEW CATEGORIES
| CATEGORY | WHAT VAR CHECKS | TYPE OF DECISION |
| Goals | Offside, handball, or foul in the build-up. Whether the ball crossed the line. Any interference that should disallow or allow a goal. | Factual (offside/line) + Subjective (handball/foul). Clear and obvious standard applies to subjective elements. |
| Penalty kicks | Whether a foul occurred inside or outside the penalty area. Whether a penalty should have been awarded or rescinded. | Partly factual (location of foul) + Subjective (whether foul occurred). Clear and obvious standard applies. |
| Direct red cards | Serious foul play, violent conduct, or dangerous behavior. Whether the correct player was shown the card. | Subjective. Clear and obvious standard applies. Mistaken identity is factual. |
| Mistaken identity | Whether the referee showed a card to the wrong player. | Factual. Clear and obvious standard does not apply — if identity was wrong, it is corrected. |
Goals
Every goal is automatically checked by VAR, whether or not the referee has signaled anything. The VAR team reviews whether the ball was in play before the goal, whether any player in the build-up was offside, whether a handball occurred in the lead-up, and whether a foul should have stopped play. If VAR identifies a problem, the referee is notified and may be called to the pitchside monitor to review the footage before confirming or overturning the goal.
Penalty kicks
VAR can review whether a penalty kick should have been awarded and whether a penalty kick that was awarded was actually a foul. It can also check whether the foul occurred inside or outside the penalty area — a factual determination that changes the outcome of the decision. The penalty review category is the most controversial in practice because the line between a foul and a non-foul in the penalty area is subjective, and the clear and obvious standard means VAR can only intervene when the error is substantial.
Direct red cards
VAR can review potential straight red cards for serious foul play or violent conduct that the referee may have missed or may have judged differently from the available video. The clear and obvious standard applies: VAR cannot upgrade a yellow card to a red card simply because the footage shows the tackle was worse than it looked. It can only intervene when the error in the original decision was substantial.
Mistaken identity
If a referee shows a card to the wrong player — a relatively rare occurrence — VAR can identify the correct player regardless of the clear and obvious standard. Factual errors of this type are corrected automatically because there is no subjective component to who was actually involved in the incident.
“VAR does not replace the referee. It exists specifically to correct ‘clear and obvious errors’ in four defined categories: goals and offences leading to goals; penalty kicks; direct red cards; and mistaken identity. The on-field referee retains final authority over every decision.”
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——— HOW IT WORKS ———
How VAR Works: The Video Operations Centre, the TV Signal, and What Happens During a Review
The Video Operations Centre
The VAR team works from a Video Operations Centre located away from the stadium. The team typically includes a lead video assistant referee, additional assistant video referees, and replay operators who manage camera angles. They have access to multiple camera feeds covering every part of the pitch and can review footage from any angle. The team monitors the match continuously and alerts the on-field referee when they identify a potential error in one of the four reviewable categories.
Initiating a review
A VAR review can be initiated in two ways: by the VAR team in the video operations centre, or by the on-field referee themselves. Players and coaches cannot request a review. Players who surround the referee or persistently demand a review can receive a yellow card for unsporting behavior. The VAR team alerts the referee through an earpiece. The referee then decides whether to accept the recommendation and initiate a review or to proceed without one.
The TV Signal
When the referee initiates an official VAR review, they draw a rectangle in the air with both hands — using the index fingers of each hand to trace the shape — to signal that play is being reviewed. This is the TV Signal — a deliberate visual communication to players, staff, and spectators that a review is underway. When the review is complete, the referee either signals the original decision stands or signals the overturned decision. If the referee goes to the pitchside monitor, they will review footage directly before making their final call. The referee’s decision after a VAR review is final.
Factual vs. subjective decisions
The most important distinction in understanding VAR is the difference between factual and subjective decisions. Factual decisions — offside, whether the ball crossed the goal line, mistaken identity — do not require a clear and obvious error standard. If a player is offside by a millimeter, VAR will flag it. The semi-automated offside technology used at major tournaments including the 2026 World Cup uses tracking cameras and a sensor inside the match ball to identify the exact moment a pass is played and measure whether any part of the attacker’s head, torso, or legs was beyond the last defender. Subjective decisions — whether a tackle was a foul, whether a handball was deliberate, whether contact in the penalty area warranted a penalty — require a clear and obvious error before VAR intervenes. Minor or borderline errors do not qualify.
——— THE OFFSIDE QUESTION ———
Semi-Automated Offside Technology: How VAR Handles the Most Technically Complex Review
The offside review is the VAR decision that has generated the most visible debate, partly because of the precision of the technology and partly because of how it has changed the way the game is played around the offside line.
How the flag works now
Assistant referees are now instructed to delay raising the offside flag during a promising attacking move. If the flag goes up too early and incorrectly stops play, VAR cannot restore the chance. If the flag stays down and the attack produces a goal, VAR can review the sequence afterward and disallow the goal if any player was offside. The assistant referee’s delay is intentional: it preserves the possibility of VAR correcting the decision in the best possible direction.
The 10-centimeter alert
A new feature introduced at the 2026 World Cup provides assistant referees with an automatic audio alert when an offside offense is 10 centimeters or more — meaning the call is clearly not close. When the alert fires, the assistant can raise the flag immediately without waiting for the play to develop further, because the margin is too large to be in question. For offside situations where the margin is less than 10 centimeters, the assistant continues to apply the delayed flag protocol, preserving the possibility of a goal review.
Why offside reviews still take time
Even with semi-automated technology, some offside reviews take longer than expected. The most common reasons are: multiple touches in a sequence where the question of whether a touch was deliberate changes the relevant kick point; technology issues that require a human VAR official to manually confirm what the cameras and sensors show; and situations where a defender’s body blocks the camera’s view of the relevant moment. When the kick point is clear, most offside reviews resolve in under 60 seconds. Longer reviews involve ambiguous sequences that the technology alone cannot resolve.
“VAR quickly became one of soccer’s most controversial features in its attempt to limit, if not eliminate, the human error aspect of on-field officiating. If you were to take a poll amongst hardcore soccer fans, the vast majority would give it a negative review.”
FanSided · How Does VAR Work? What to Expect of Video Assistant Referee at the 2026 World Cup ·
——— WHY VAR IS CONTROVERSIAL ———
Why VAR Stays Controversial: The Clear and Obvious Problem, the Time Delays, and What VAR Cannot Fix
The clear and obvious standard
The fundamental tension in VAR is that the system was designed to correct only clear and obvious errors, but many of the most controversial decisions in soccer are not clear and obvious in any direction. A penalty that looks like a foul from one angle looks like simulation from another. A handball that looks deliberate from the front looks accidental from the side. VAR can review the footage from every angle and still not produce a decision that the majority of viewers agree with, because the underlying decision is genuinely ambiguous. The clear and obvious standard does not help when the play itself is genuinely unclear.
The time delays
VAR reviews interrupt the flow of the game in ways that frustrate both fans inside the stadium and viewers at home. A review that takes three minutes — which is not unusually long for a complex penalty decision — creates a period of uncertainty that empties a stadium of its atmosphere and leaves television viewers watching a referee stand at a pitchside monitor. FIFA and the International Football Association Board have made changes to try to reduce average review times, including the semi-automated offside technology that handles most offside checks faster than manual review. But for subjective decisions involving foul play, there is no technology that can substitute for the human judgment that is being reviewed. The wait is the cost of the accuracy.
What VAR cannot fix
VAR cannot eliminate human judgment from soccer officiating. It can check whether a player’s foot was in an offside position. It cannot determine whether a handball was deliberate. It can review whether contact occurred in the penalty area. It cannot determine whether that contact was enough to constitute a foul by the standard the referee on the pitch was applying. The system corrects factual errors efficiently and consistently. It corrects subjective errors only when the error is large enough to clear the clear and obvious threshold — which means that a large category of calls that fans believe were wrong remain exactly as the referee made them. That gap between what VAR reviews and what fans want reviewed is where the controversy lives.
Four categories. Clear and obvious errors only. The VAR team watches from the Video Operations Centre. The referee draws a rectangle in the air. No coach challenges. Factual decisions corrected precisely. Subjective decisions corrected only when the error is substantial. The technology gets faster. The debate does not.
VAR does not eliminate controversy from soccer. It relocates it.
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