[Karl Bebout]

It'll all depend on the guy you catch on the tech line. I've had them require a full face helmet, some not, some required arm restraints, some wanted SFI numbers from flywheel and harmonic balancer, They all checked safety harness dates, helmet dates, and neutral safety switch and external battery cut off. The requirements are more stringent for an open car and of course, the quicker/faster you go, the more requlations.
I've even heard of some people getting thrown off the track for going too fast....