32-9-8.1 Fees applicable to power unit or tractor only--Interchangeable trailers--Identification plates required--Fee--New plate upon title transfer--Disposition of fees--Trailers within a municipality--Violation as misdemeanor. 32-9-9 Loss or destruction of commercial plates--Duplicate plates--Fee--Disposition of fee--Report of loss. 32-9-10 Duties of department. 32-9-11