Track Testing will be required for any of the following; Oversize Wheels and Tyres, Increases in Wheel Track or Wheel base.Upgraded suspension packages not covered by CRN number. Modifications including fitment of non ARD standard approved accessories. Modifications to braking systems including upgraded Dual diaphragm Brake booster,Larger size Rotors, Larger Calipers or Disc Brake Conversions.For all additional information contact your local VSCCS certifier.