The Trust is governed by a board of trustees (of between nine and fifteen members), appointed and overseen by a council consisting of eighteen people elected by the members of the Trust and eighteen appointed by other organisations whose work is related to that of the Trust, such as the Soil Association, the Royal Horticultural Society and the Council for British Archaeology. The members periodically vote on the organisations which may appoint half of the council. Members may also propose and vote on motions at the annual general meeting.