S.D. Codified Laws § 7-9A-2
If a law requires, as a condition for recording, that a document be an original, be on paper or another tangible medium, or be in writing, the requirement is satisfied by an electronic document satisfying this chapter. If a law requires or refers to something related to tangible media, the requirement or reference is satisfied by an electronic document satisfying this chapter.
If a law requires, as a condition for recording, that a document be signed, the requirement is satisfied by an electronic signature.
A requirement that a document or a signature associated with a document be notarized, acknowledged, verified, witnessed, or made under oath is satisfied if the electronic signature of the person authorized to perform that act, and all other information required to be included, is attached to or logically associated with the document or signature. A physical or electronic image of a stamp, impression, or seal does not have to accompany an electronic signature.
In a proceeding, evidence of a document or signature may not be excluded solely because it is in electronic form.
This section does not require that a register of deeds adopt the process of recording electronic documents.
SDCL 7-9A-2