The comp rules were taken off the website awhile ago because they were incorrect. Changes had been made over the years but the rules on the website were not updated.
I know Dave Taylor (comp chair) has been working with the comp committee to get the book updated, published, and put on the website.
In the mean time you can find a scanned copy of the Safety Rules under the forum titled Racers Edge.
PNW4WDA and Region 2 Public Relations
Real Deal Doe Run Member