If a motor vehicle registered for a gross weight of 23001 pounds or more is operated only in the truck tractor-semitrailer configuration a credit of $40 is allowed for the original annual registration fee. The owner of the must be issued a plate
29-A §517. Government vehicles. 29-A §517-A. Registration exemption for vehicles owned by veterans groups and used exclusively for ceremonial activities. 29-A §517-B. Registration exemption for antique farm used in demonstrations parades ceremonies and organized charitable events. §518.