S.D. Codified Laws § 32-9-57
Any commercial motor carrier located in the state hauling a new trailer with a manufacturer's statement of origin or certificate of title and who has registered with the Department of Revenue as a transporter may use a transporter plate upon the streets and highways for in-transit purposes. The fee for a transporter plate is fifty dollars and the fee shall be deposited in the license plate special revenue fund. Any new trailer bearing a transporter plate may be used on the most direct route from the trailer's manufacturer to the licensed trailer dealer for a period of ten days. A bill of lading that contains the origin and destination of the new trailer shall accompany each movement. No transporter may use a transporter plate for any other purpose. A violation of this section is a Class 2 misdemeanor.
SDCL 32-9-57