Premier League referees have been set a weekly training schedule which they must complete at home with their performances being monitored from afar by the PGMOL.
Sports scientists are tracking their data after telling officials, such as Mike Dean, Michael Oliver and Martin Atkinson, to wear heart-rate monitors during exercise.
Each is expected to have to pass a fitness test before being assigned a game once the suspension on the Premier League season is lifted.
Once a date is set for the 2019-20 campaign’s restart, and when the UK Government allows, officials will meet for a crash course reminder in VAR.
In the meantime, the PGMOL have been staying in touch with their members using weekly video conference calls via Zoom, the app being used by many companies during lockdown.
Managing director Mike Riley was self-isolating this month after a business trip to Kuala Lumpur.
After dominating headlines all season, VAR has fallen under the radar amid the coronavirus crisis.
Talks have been ongoing regarding changes to the technology ahead of 2020-21, including whether more leniency should be given to attackers in offside situations.