VAR explained: what referees can and cannot review

Video assistance has been part of top-level football long enough that the arguments have stopped being about whether it should exist and started being about why it behaves so inconsistently. Most of that perceived inconsistency comes from a single misunderstanding: people assume VAR exists to get decisions right. It does not. It exists to correct a narrow class of decisions that were clearly wrong, which is a materially different job.

The four reviewable categories

The protocol is closed. Only four match-changing situations may be reviewed, and anything outside them is untouchable regardless of how badly it was refereed.

Goals, including any infringement in the phase of play leading to the goal, such as offside, a foul, a handball or the ball leaving the field.

Penalty decisions, both penalties awarded and penalties not awarded.

Direct red card incidents, meaning whether a sending-off should have occurred. Notably this does not extend to second yellow cards, which is a frequent source of confusion, because a mistaken second yellow ends a player’s match just as decisively and cannot be reviewed.

Mistaken identity, where the referee cautions or sends off the wrong player.

Everything else is outside the protocol. A wrongly awarded corner, a missed foul in midfield, a poor throw-in decision: none can be reviewed, even when the error is obvious and even when it leads directly to a goal three passes later, because only the immediate attacking phase is in scope.

That boundary was deliberate. An unlimited review power would stop the match constantly and shift authority from the referee to a screen.

The intervention threshold

Within those four categories, a second filter applies, and it is where most controversy actually originates.

VAR may only recommend a review for a clear and obvious error, or a serious missed incident. The standard is not whether the video assistant would have made a different decision. It is whether the on-field decision was clearly wrong.

This produces the outcome supporters find maddening. A decision can be debatable, contested by half the ground, and still stand, because debatable is precisely what the threshold protects. If two competent officials could reasonably reach different conclusions, the original call is by definition not clearly wrong, and the protocol requires it to remain.

The threshold works differently in one important case. Factual matters, offside position, whether the ball crossed the line, whether an incident occurred inside or outside the area, are not subject to the clear-and-obvious test in the same way, because they have a correct answer. This is why offside decisions are overturned for margins invisible to the eye while a heavily disputed penalty stands. Those are not inconsistent applications of one rule. They are two different rules.

How a review actually runs

The sequence matters, because each stage has a different decision-maker.

Step three is where almost every complaint originates. A decision that half the ground disputes will usually close at that step without a review, because disputed is not the same as clearly wrong, and the protocol was written to protect exactly that distinction.

Why identical incidents get different calls

Four structural reasons, none of them incompetence.

The threshold is subjective by design. Two referees can hold different views on whether an error was clear and obvious, and both are applying the protocol correctly.

Camera coverage is not uniform. A fixture with more cameras produces more angles, and an incident that is conclusive at one ground is inconclusive at another. The protocol requires conclusive evidence to overturn, so the same challenge genuinely can produce different outcomes depending on the broadcast setup.

The categories create hard edges. A foul that leads to a goal is reviewable. The same foul that leads to a corner, from which a goal is scored, generally is not. Nothing about the foul changed.

Referees vary in how readily they go to the monitor. Some review willingly, some rarely. The protocol permits both.

What VAR was never meant to fix

It was designed to remove the small number of catastrophic errors that decided matches and became the story: the goal scored with a hand, the sending-off of an innocent player, the penalty for a foul in the stands.

By that measure it works, and the evidence is that those particular disasters have largely disappeared from elite football.

What it was never intended to do is produce universally accepted decisions, eliminate debate about contact and intent, or make refereeing objective. Those things are not achievable by adding cameras to a sport whose laws are written in language requiring judgment. “Careless”, “excessive force” and “deliberate” are not measurements, and no replay resolves them.

Understanding that the tool is narrow, conservative and advisory does not make the frustrating decisions less frustrating. It does make them explicable, which is more than most of the arguments manage.

Sources

• IFAB, Laws of the Game — the VAR protocol and the four reviewable categories
• UEFA Champions League — a competition that operates VAR under the IFAB protocol, where the review categories are applied in practice
• Premier League, news — a competition operating VAR under the IFAB protocol, and its published decisions and clarifications