S.D. Codified Laws § 32-3-59
Auction of older motor vehicles by nonprofit automobile club--When permitted--Penalty
Any motor vehicle that is twenty years of age or older may be sold at auction, if the auction is sponsored by a nonprofit automobile club subject to the provisions of chapters 47-22 to 47-28 , inclusive. A nonprofit automobile club may not sponsor more than four auctions a year under this section. A violation of this section is a Class 2 misdemeanor.
Source: SL 1986, ch 27, § 13; SL 1989, ch 255, § 3; SL 2021, ch 131, § 1.