Here are the basic rules  for more detailed rules  see http://www.amadirectlink.com/rulebooks/AmateurRules2008.pdf. and http://www.amadirectlink.com/rulebooks/RoadRules2008.pdf
50" max width
Any rider who does not start/finish in their heat may advance to the main provided there are open positions ,they will get last pick.
Any rider who false starts will be moved to back row on restart.
No crossing lanes in split lane section of track

Here is an explaination of the classes, we have adopted these classes as there are many of our riders running some form of National races and these will more closely comform to those classes

Pro Lite—This class is for Production Quads only.  This class is for accomplished riders only.  You must be approved by the Promoters and/or the referee to participate in this class.  If, in the judgment of the aforementioned officials, any rider is not competitive in this class the rider may be asked to choose a different class to participate in at future events.  No B or C class riders

Pro-Am Unlimited---This class is open to all Pro Lite riders as well as any A class riders or age class riders with at least two years of ATV racing experience.  Any quad is eligible to race in this class.  No B or C class riders will be allowed. 

Production A---This class is for Production Quads only.  It is for the advanced rider who is not yet ready for the Pro class. 

Production B---This class is for Production Quads only.  It is for the intermediate level rider. 

Production C---This class is for Production Quads only.  It is for the entry level rider. 

Knobby Class---open to all quads with knobby tires only.  No sway bars or lowering of quad allowed in this class.  Knobby tires allowed in this class only. 

25+  30+  40+---All age classes are open to any quad.  Rider must only qualify by age. 

Open class---This class is for quads that are 451cc and up 4-stroke and 266cc and up 2-stroke. NO 450 FRAME/CLASS quads