Upon submission by a truck or truck tractor owner of information to the department that a truck or truck tractor is used exclusively for the purpose of transportation of circus or carnival personnel or equipment or machinery and only so used during the period from April 1 through September 30 of any year, the department may issue special plates for the vehicle. The registration fee for the truck or truck tractor shall be one-half the fee for a similar truck or truck tractor not used for the purposes described in this section.
75 Pa.C.S. § 1349