"I can guarantee the referees that will be at the World Cup will be ready", he said on Saturday.
Federation Internationale de Football Association president Gianni Infantino said the final decision on using the system at the June 14-July 15 World Cup will be taken at a meeting of the Federation Internationale de Football Association council in Bogota later this month.
Representatives of the 32 teams that have qualified for the World Cup meeting in the Black Sea resort of Sochi this week voiced confidence that the expected VAR rollout would be a positive for the tournament.
IFAB technical director and former World Cup referee David Elleray said all stakeholders had to be patient and allow teething troubles to be ironed out.
VAR has often created confusion in the first full season of live trials which now include more than 1,000 games worldwide.
FC's Mark Ogden talks with Man United's Ashley Young about the use of VAR and his hopes of shortening the time it takes in making decisions.
In what is probably the most decisive decision ever made when it comes to VAR, the agreement will see the system used in relation to goal, penalties, direct red cards and cases of mistaken identity.
In an unprecedented change to the sport, the International Football Association Board (IAFB) has given the nod for the introduction of Video Assistant Referee (VAR) technology in this year's upcoming FIFA World Cup in Russian Federation.
OK, so it may not be England in the final, but the rest of this scenario is very much a possibility if Wednesday night's FA Cup tie between Tottenham and Rochdale is an indication for the future for football.
Infantino brushed aside concerns over the readiness of World Cup referees or concerns that the VAR system was taking the spontaneity and excitement out of the sport.
Six out of eight votes were needed to green-light the technology for the highest accolade in world football, with FIFA having four votes and each of UK's Home Nations having a vote each.
Pierluigi Collina, the chairman of FIFA's referee committee, noted that the governing body had been preparing for more than a year to use VAR at the 2018 World Cup even though the decision has not been made.
And the Argentine believes work needs to be done to improve the VAR system before it can be used on a full-time basis in the Premier League.
The IFAB had at its 132nd Annual General Meeting (AGM) in Zurich, Switzerland on Saturday unanimously approved the use of VARs.
The constant post-match criticisms by managers and displeasure among the fans over the referee's decisions could come to an end and that could be seen as a plus point of the technology.
What decisions can it be used for?
Also, when a decision is being referred, the fans have no idea about the happenings on the pitch until the referee indicates the usage of VAR by their hands.