S.D. Codified Laws § 32-7B-12 (2026)
Any new or used boat owned by a licensed dealer, bearing dealer's demonstration permits, may be operated in this state for demonstration purposes only. Such boat may be operated by any prospective buyer for a period not to exceed seven days. No dealer may issue a dealer's demonstration permit to any boat for any other purpose. Any violation of this section is a Class 1 misdemeanor.
Source: SL 1998, ch 185 , § 12.