24 V.S.A. App. ch. 414, § 207: Quorum

For the purposes of transacting business, the presence of members whose accumulated votes represent more than 50 percent of the total number of possible votes 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 charter.