Jim
Ringleader
I'm relying on memory (because I haven't got time to look it up) but I think it was about 8 years or so ago that the requirement for 6 metre spacing was mandated for CLs and rallies. Obviously there was discussion on this forum at the time and I think there was a particular fire safety paper which contained the recommendations/regulations. Perhaps Jim may be able to help.
I don't think there are any regulations or requirement in law. I believe that the whole 6m thing originally came from the Caravan Club years ago and became what's known as 'Best Practise'.
Natural England tell us to observe this best practise or they will remove our exemption to rally. Making it essentially a law as far as we are concerned.
Furthermore, let's say a motorhome fire occurred on a rally field and a secondary vehicle parked closer than 6m to the fire was damaged by heat. The loss adjuster would be asking us why we ignored 'best practice'