What is the current policy on Instructor / Passenger?  If I have friends who are just getting into trackdays (they're FIRMLY novice and I run advanced) and I have instructed in the past with other groups, are we allowed to coach?  At one point in years past it was allowed, but it's been a while and I want to make sure that I can offer to ride along and coach them a little, or conversely, bring them in my car?