Chris, same here in NZ with the NZCMRR really.
No MNZ licence, no racing , no back & chest protector, no racing, no spec helmet , no racing and so it goes on.
We have to have sanctioned meetings by the MNZ which is governing body for all competition racing in NZ on and off road.
Leather boots and gloves have to be in good order, leathers only.
Bikes are scrutineered each race, if you crash during any meeting, the bike has to be rescrutineered , helmet checked and a medical check for the before you can go out again.
If you crash and cant race again at that meeting , the steward for MNZ on the day takes your licence off you, injuries recorded and you get your licence back once you produce a medical certificate to say you are fully fit to race again.
They are very strict on helmets , if the paint or gel coating is gone in any way or form it doesnt comply.
Recent races brought to light a non spec bike racing in the same class as the one I am in, slicks cut to look like treaded tyres, late model frame out side the class dates, bigger disc brakes and multi pot calipers amongst other things.. A formal complaint was laid by a few of us , didnt see him in our class at the last meeting.
Rob North frames are raced here in the same class as the one I am in.
Open Classic '70's
So the rules are there for a reason, not just for safety.
Track days are different.
https://www.mnz.co.nz
https://www.nzcmrr.com/index
Regards Mike