A. Helmets meeting at least one of the following standards must be worn while on track:

1. All helmets meeting the latest or two immediately preceding Snell Founda­tion standards (SA2025, M2025, SA2020, M2020, EA2016, SA2015, SA2010, SAH2010, M2015, M2010)

2. SFI standards 31.1/2010, 31.1/2015, 31.1/2020, 41.1/2010, 41.1/2015, 41.1/2020

3. FIA standards 8859-2020, 8860-2018, 8860-2018-ABP, 8859-2015, 8860-2010;

B. Full face shall be worn in open vehicles without windshields (E.g., formula car, sports racer, exoskeleton kit-cars). A face shield, goggles, or similar face protection (conventional eyeglasses are not sufficient) shall be worn while competing in any other vehicle with less than the standard-size windshield.

C. For maximum protection, helmets must fit securely and should provide adequate peripheral vision. The chin strap must be securely fastened.