I think the SCTA requires SFI certification for "STANDARDS" but does not require re-certs for time as in other forms of racing, scattershields, fire suits, hans devices, padding, etc.
I think with the new rules they are in collusion with mfgs. to sell more product, therefore more fees to SFI, more cost to the racers.
If the SCTA goes to time re-certs on all of the above, tire speed rating, tire age, on and on, I and probably a lot of others won't be able to afford to race.
JMHO
Ron