The President is head of the Bureau, which also consists of the Vice President, the Secretary General, the Treasurer General and one or more Deputy Secretaries General. The members of the Bureau are elected by the Executive Committee (ExCo) and all of the positions are honorary.
The Bureau holds monthly meetings, mostly remotely by videoconference, but the work of the Bureau is conducted daily.
The work of the Bureau is periodically reviewed and approved by the ExCo.