Nhra 2024 Rule Book 2024. Beginning on january 1, 2024, head and neck restraint devices will be required for use in all vehicles that run 150 mph (or faster) or 7.49 seconds (or quicker). In addition, a neck collar, head sock, or skirted helmet must be used with the device.
As a fan, you’ll love it, because it brings you inside the highly technical world of nhra drag racing like nothing else can. Below are the amendments to the nhra rulebook section 18, page 7: