Ind. Code § 36-10-9-5
(b) The board may adopt the bylaws and rules that it considers necessary for the proper conduct of its duties and the safeguarding of the funds and property entrusted to its care. A majority of the members constitutes a quorum, and the concurrence of a majority of the members is necessary to authorize any action.
As added by Acts 1982, P.L.77, SEC.28.