SDCL § 38-8-45: Chairman and officers of district board--Quorum--Majority required for actions.

At the first meeting in January of each year the supervisors of a conservation district shall designate a chairman, vice-chairman, a secretary, and a treasurer, or a secretary-treasurer. The treasurer, or secretary-treasurer, if combined, need not be a member of the board of supervisors. A majority of the supervisors shall constitute a quorum and the concurrence of a majority in any matter within their duties shall be required for its determination.