Champions League knockout stages to have VAR this season along with Nations League and Euro Under-21s
Video assistant referees will also be used in the Nations League and European Under-21s Championship.
The technology will be used in world football's top club competition for the last-16 fixtures this February after being fast-tracked by UEFA.
European soccer's governing body had originally intended to introduce VAR from next season.
The plan was to roll it out from the Champions League qualifying play-offs in August.
But now it has been brought forward after a number of controversial incidents already this campaign – and pressure from clubs.
Manchester City star Raheem Sterling won a penalty against Shakhtar Donetsk after tripping over the turf.
And Cristiano Ronaldo was sent off for Juventus following an off-the-ball incident with Valencia's Jeison Murillo.
Video review can help referees overturn decisions on clear errors in game-changing situations.
This includes goals, penalty kicks being awarded, red cards and cases of mistaken identity.
VAR has been used in a number of European leagues this season including the Spanish top flight.
It was also used in the World Cup – where video referees were shown wearing full kit in their control room.
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