24 V.S.A. App. ch. 413, § 207: Quorum

For the purpose of transacting business, the presence of members representing more than 50 percent of the Board of Supervisors shall constitute a quorum. However, a smaller number may adjourn to another date. Any action adopted by a majority of the votes cast at a meeting of the Board of Supervisors at which a quorum is present shall be the action of the Board, except as otherwise provided in this chapter.