The smallest level of organization in the Order of the Arrow is the chapter. The chapter is usually corresponding to a district in the local council. The chapter is led by the elected youth chapter chief, chapter vice chiefs, secretary, and a volunteer adult is appointed as the adviser, the district executive is the professional (staff) adviser. The chapters often hold monthly meetings together. The next largest unit of the OA is the lodge, which is chartered by a local BSA council. The lodge chief is the elected youth leader, the lodge adviser is a BSA adult volunteer appointed by the Scout Executive, and the lodge staff adviser is the council Scout executive or his designated council professional Scouter. The lodge youth officers, consisting of the lodge chief, one or more vice chiefs, a secretary, and a treasurer are responsible for organizing and leading the various programs and activities of the lodge. Many lodges have standing committees responsible for ceremonies, service projects, publications, unit elections, camp promotions, and dance teams composed of youth members.