South Dakota Codified Laws
Chapter 07 - Third Class Municipality Board Of Trustees
Section 9-7-7 - Quorum--Majority required for action.

9-7-7. Quorum--Majority required for action.
A majority of the members of the board shall constitute a quorum, but no act of the board shall be effective unless assented to by a majority of the members.

Source: RC 1919, §6203; SDC 1939, §45.0607.