Provisional TT Classifications Read More...
Time Trial Rules - The latest rules on the NASA Site.
Time Trial Car Classification Form TTB-TTF
Time Trial Car Classification Form TTU/TT1/TT2/TT3
Time Trial Dyno Certification Form
Time Trial License Application
Time Trial License Renewal--sign on to the NASA main website
Time Trial/HPDE Car Tech Form
Online Classifier--Temporarily Off-line. The Classer is getting updated for the '13 Rules. For assistance in classing, contact your Regional TT Director by e-mail.
Important Note: For in depth rules for HPDE participation please download the Club Codes and Regulations (CCRs) to get specifications on racing harnesses, seats, roll bar, and other safety related items. As a general rule, an "unmodified" factory vehicle will pass tech without any problems, but cars that have been modified (seats, roll bars, belts, etc) must conform to the preparation rules listed in the rulebook.
Rule Addendums and Clarifications Read More...
Dyno Re-classing: Motor Swaps, Aftermarket Head(s), Aftermarket or Modified Forced Induction, Ported Rotaries Read More...