South Dakota Codified Laws
Chapter 65 - Collection And Remittance Of Taxes By Marketplace Providers
Section 10-65-4 - Marketplace seller defined.

10-65-4. Marketplace seller defined.
For the purposes of this chapter, a marketplace seller is a retailer that sells or offers for sale tangible personal property, products transferred electronically, or services for delivery into this state, through a marketplace that is owned, operated, or controlled by a marketplace provider.

Source: SL 2018 (SS), ch 3, ยง3, eff. Dec. 12, 2018.