They're not allowed 2-up
You're not allowed to be in the car park until a given time
You're not allowed to speak to anyone else in the car park
you have to go to the line and look at the time keeper who's hiding in a car or in the neighbouring field
You go when he says to go,
You malky yourself to pieces
There's only limited circumstances where a course marhsall will help you
When you get back to the finish you're to ride directly back to your car without stopping on the way
and once you've done all that you've to leave the site ASAP.
That's not the same as having 120 riders in one location at the same time with any risk of them mingling as would be normal.
They're running it in a manner that means the riders are never in close contact with anyone at all unless there's a major issue.
For the other sport I keep mentioning here's a preeminant hack's take on what the two clubs that have managed to put events on in Scotland had to do.
http://www.jaggybunnet.co.uk/2020/07/21-jul-autotesting-under-covid/Again nothing like normal despite from the outside looking like it.
If you read it there's a carefully worded dig at football.
What he hasn't mentioned is that MSUK aren't allowing joint occupancy of a car and when cars are shared for entry cleaning measures must be taken place, what that means is where junior sport is involved (in which there must be a passenger with a road driving licence in the vehicle) it can't be done even though the vast majority of kids taking part in autotests are doing so with a parent in the other seat.
There's also this statement "Another new innovation was the requirement for a Covid19 Officer whose duties included the oversight of all pre-event and on-event preparations and ensuring that competitors and officials respected the social distancing rules and followed the guidance laid down by the event organisers."
AUK have gone for a fairly blunt approach at managing compliance with the law.