Under the current arrangement shuttle riders will not be charged an additional entry fee to enter the park. The $15 round trip fee is applied to other expenses incurred in operating a shuttle service (e.g. fuel); therefore, it is not related to the NPS entry fee. We do need to gather data about how many riders have a NPS pass, so that we can determine if future discounts are feasible. Drivers will make a brief inquiry about this at some point along the ride.