any helmet will do?

mackey said:
New England Dragway makes sure you have a Snell 90 or better.

Same with my drag strip (Saskatchewan International Raceway). They not only check for the label on the back, but the tag inside of the helmet. I think NHRA rules state SNELL 90 or better.
 
My local track only checks when you are running in bracket style racing. For TnT, they could care less. My friend it a 01 Trans Am ran an 11.9 on slicks without a helmet, d/s safely loop or a cage.