ATCA is governed by a nine-member executive committee. Three ATCA members are elected to three-year terms each year. A member may serve no more than two terms consecutively, although they may run again after a year off from the committee. Any ATCA members in the Active membership category may stand for election to the executive committee. The executive committee elects its own chair and vice-chair and appoints a secretary and treasurer. The secretary and treasurer need not be elected members of the executive committee.