Few topics divide football fans like VAR, and at World Cup 2026 video review will be under the spotlight again. The system has been refined since 2022, with semi-automated offside technology, faster checks and clearer communication to fans in the stadium. But the basics remain the same: VAR is there to correct clear and obvious errors in four specific situations. Here is how refereeing and VAR will work at the tournament, and what to expect when the referee walks to the monitor.

What VAR can and cannot check

VAR can only intervene in four situations: goals, penalty decisions, direct red cards, and mistaken identity. It cannot review free kicks, throw-ins, corner decisions or yellow cards, except as part of a penalty or red-card check. The video assistant watches every incident and tells the referee if a clear and obvious error has been made. If the incident is subjective, the referee is invited to the pitchside monitor to review it themselves. The final decision always belongs to the on-field referee, not the video room.

Semi-automated offside: faster and more accurate

One of the biggest changes for 2026 is the wider use of semi-automated offside technology. Cameras around the stadium track the positions of players and the ball, and a system generates a 3D animation showing whether an attacker was offside. This has cut the average offside check from over a minute to a matter of seconds, and it produces a clear visual that fans can see on the big screen. Tight offside calls will still frustrate supporters, but the decisions themselves should be more consistent than ever before.

How long will VAR checks take?

FIFA has promised faster decisions at this World Cup, and the technology should help. Most factual checks, like offsides and whether the ball crossed the line, are now resolved in seconds. Subjective decisions, like whether a foul is a penalty, still take longer because the referee must review the footage at the monitor. Fans in the stadium will see the incident replayed on the big screen, along with a short explanation of the decision. The aim is transparency: supporters should understand why a decision was made, even if they disagree with it.

The referees: who is in charge

FIFA selects referees from every confederation, and the best officials in the world will be at the tournament. Referees are chosen on merit, based on their performances in domestic leagues and international competitions, and they train together for months before the World Cup. Fitness is vital: a referee must cover as much ground as a midfielder, and must be able to keep up with the fastest players in the world. The most experienced referees will handle the biggest games, including the semi-finals and the final at MetLife Stadium.

Controversies to expect

Even with the best technology, VAR controversies are inevitable. Handball remains the hardest law to apply consistently, because the difference between a natural arm position and a deliberate handball is a matter of judgement. Soft penalties, marginal offsides and fouls in the build-up to goals will all spark debate. The key question is whether VAR improves the big decisions overall: the evidence from recent tournaments suggests it corrects far more errors than it creates, but fans will still remember the one call that went against their team.

How fans should follow VAR decisions

For fans in the stadium, the advice is simple: watch the big screen and listen to the stadium announcement, which now explains the outcome of every review. For fans watching on television, broadcasters will show the same replays the referee sees, with analysis from former officials. Remember that VAR is not there to re-referee the game, only to fix the clear mistakes. If your team benefits from a VAR decision, enjoy it; if it goes against you, remember that the same system will help another team tomorrow. That is the deal football has made with technology.