driver health  

I'm not much on tacking on more rules than there already are but at the same time on this topic  one would like to think every competitor takes some form of responsibility for their own well being.  I guess a notation from a physician clearing someone would not be that big of an inconvenience.  Safety is one place where most don't push back.  Maybe each facility can take a vote amongst the competitors, it would be interesting to see what the vote would be.