AS Good a Place as Any for this:
FIFA (along with IFAB by the look of things) is permitting temporary changes to the laws to assist competitions in completing their seasons:
- An option to stop using the video assistant referee system because of safety concerns over officials working together in a small room for the duration of matches.
- Up to 5 subs per team in a game to assist with injury and fatigue. To minimise disruptions there will only be three opportunities permitted to make subs, plus half time (presumably meaning double subs will be necessary).
- If all five subs are used and competition rules allow it, a 6th (+1) sub will still be permitted if extra time occurs.
Individual competition organisers have the option to use (or ignore) these temporary variations.