S.D. Codified Laws § 47-11E-7
Qualifications of president, directors and officers
The president of a corporation formed pursuant to § 47-11E-1 shall be a shareholder and director; and, to the extent possible, all other directors and officers shall be persons having the qualifications prescribed in § 47-11E-5 . Lay directors and officers may not exercise any authority whatsoever over professional matters.
Source: SL 1996, ch 228, § 7.