1) Points will be given to a combination made up of vehicle/driver number. Substitutions can be made as follows.
i) A substitute driver may be used to accumulate points for someone else. The substitute driver must register using the number of the person he is substituting for and he must use the vehicle normally used by the number. All other competition rules apply.
ii) A driver may substitute a different vehicle if:
(1) The vehicle meets the rules of the class
(2) The driver begins eliminations with the vehicle (see Competition rule).