This will be your last opportunity to wear a Snell 2000 helmet while land speed racing. If you haven't seen the Snell cert. sticker -- it's inside the fabric liner -- usually on the inside surface of the impact-absorbing material. You'll likely have to dig to find it. It's a rotogravure sticker -- that is, printed on shiny metallic foil. They're usually pretty difficult to find, but it'll be there - someplace.