Drivers of all cars running 13.99 or quicker must use a helmet
meeting Snell K98, 2000, 2005 or SFI Spec 31.1A, 31.2A,
31.1/2005, 41.1A, 41.2A, or 41.1/2005.
Effective Jan. 1, 2008, full-face helmet mandatory for drivers of all
cars 9.99 or quicker. Goggles prohibited; visor mandatory. See
Class Requirements for additional requirements.
Drivers of cars running 7.49 or quicker must use a helmet meeting
Snell SA2000, SA2005 or SFI 31.1A, 31.2A, or 31.1/2005 Specs.
See Class Requirements.
All helmets must have the appropriate certification sticker affixed
inside the helmet.