For one I know that you need a legal location to do your racing on, but are there other regulations?
I am not asking for a state by state legal review, but I am just lloking to see how much trouble a person actually has to go through to be able to pull his bike out of the garage and go meet with someone to go toe to toe with, without the legal implications of racing illegally.
Is there a special kind of insurance you need, or will it void the insurance you have on your bike?
I'm not sure about you, but I do not plan on becoming a professional rider, but it might be nice to go lay some streaks at the local amateur events.