Helmet must have the ANSI and DOT or SNELL sticker. Road Race Gloves and Boots with some Armor.
They prefer the 1 piece leather suits, bit I think still accept the 360 degree zip around.
For the Bike, No drag slicks, but "Z" Rated tires or Land Speed Tires.
Safety wire everything where fluid can escape (Hose clamp on the Oil Filter and then safety wire that) Over flow bottle cap and radiator cap, I also wire the hose clamps on the hoses! "All" drain plugs and oil fillers. Axle "AND" Axle Nut, Brake Caliper bolts and on the rear the Stay rod if you have one! They are not deadly on antifreeze, but I would run no more than a 20 to 30% mix.
Last, they have a real thing for chain guards. No matter what, they must extend past the rear of the sprocket. They want steel ones, but mine is CF and Plastic. I have a real problem with this rule, because I do not want a chain Guard that so well protects the chain that the chain cannot get out and locks the rear wheel! Here are 2 examples, the first one is my good friend Jim who built one that totally meets the rules and scares Hell out of me!
Here is one that barely meets the rules and to me is a lot safer. I would have it going straight back to let the chain fly off.
Now for what you can see of mine which passes inspection.