|
The safe assumption is that yes, they all do. Though I have heard that in NJ where there is a state code covering motorsports that supposedly permits open-face helmets if the car has air bags (presumably meaning that they have to remain active).
It's worth considering the eyeport size, as there is quite a bit of variety. Coming from an open-face helmet for autocross, a large eyeport was a must-have feature for me, and I ended up with a Simpson, through SafeRacer (SafeRacer at least used to offer a 10% discount to SCCA members).
Norm
|