S.D. Codified Laws § 56-1-4

Current with legislation signed by the governor on or before 3/6/2024
Section 56-1-4 - Requirements as to writing-Signature of guarantor-Expression of consideration unnecessary

Except as prescribed by §§ 56-1-5 to 56-1-9, inclusive, a guaranty must be in writing and signed by the guarantor; but the writing need not express a consideration.

SDCL 56-1-4

SDC 1939, § 26.0104.