South Dakota Codified Laws
Chapter 05 - Objects Of Contracts
Section 53-5-2 - Requisites of object.

53-5-2. Requisites of object.
The object of a contract must be lawful when the contract is made and possible and ascertainable by the time the contract is to be performed.

Source: CivC 1877, §902; CL 1887, §3526; RCivC 1903, §1220; RC 1919, §835; SDC 1939, §10.0402.