The SCCA seems to allow Snell, SFI or FIA. Is the local chapter only accepting Snell helmets?
Crash helmets approved by the Snell Foundation with Snell sticker 2015 or later Special Application SA2015/SAH2015,
or by the SFI with a SFI Sticker SFI 31.1/2015 or newer, or by the FIA standard 8859-2015 or FIA 8860-2010 or newer.