with a Snell Memorial Foundation rating of "M" (motorcycle - not fire retardant) are required for some schools but most will require "SA" (speciality application - fire retardant) ratings, with the helmet specification being no older than 10 years (example: Rating SA-2000 helmets would normally be valid for HPDE events through the year 2010). The Snell Foundation normally releases upgraded helmet standards every five years. Some HPDE events also include a "Time Trial" segment where experienced students who have been "signed off" to drive without an instructor compete for fastest lap times. Time Trials are also conducted under strict rules which maximize safety and in many cases require additional safety equipment such as roll bars or fire extinguishers. Requirements for HPDE events vary greatly from organization to organization. Some being more strict than others regarding safety equipment, evaluation of driver skill and vehicles allowed to participate. Notes References Tips and Info for your first HPDE Event by Chin Motorsports NOVICE Driver Tips and Recommendations by William Neal High Performance Driving Event Watkins Glen Int'l Niagara PCA HPDE Experience External links JustTrackit.net - SouthEast based HPDE group with events from January through December Racers360.com - Online Racecar Driver Coaching MotorsportReg.com - find and attend HPDE events across North America Motorsport 4the Masses Speed Secrets online HPDE instruction Chin Motorsports - leading provider of HPDE events BMW Car Club of America, with regional chapters offering HPDEs or any marque Porsche Club of America, with regions offering HPDEs for Porsche owners Hooked on Driving National Auto Sport Association 10/10ths Motorsports SCCA Performance Driving Experience (PDX) Performance Drivers Club, a non-profit HPDE club Rezoom High performance driver education events Dominion Raceway Driver's Club Tarheel Sports Car Club Track Program Track Daze High Performance Driving MyTrackSchedule.com - Your key to more track events! The Drivers Edge Skip Barber Racing School Boston BMW CCA Novice Introduction Video Driving Evals - On-line student/instructor evaluations for HPDEs Cascade Sports Car Club (PDX) AutoInterests High Performance Driving Events Track Guys Performance Driving Events Driver's education