Article 48 Chicago Convention
Meetings of Assembly and voting
(a) The Assembly shall meet annually and shall be convened by the Council at a suitable time and place. Extraordinary meetings of the Assembly may be held at any time upon the call of the Council or at the request of any ten contracting States addressed to the Secretary General.
(b) All contracting States shall have an equal right to be represented at the meetings of the Assembly and each contracting State shall be entitled to one vote. Delegates representing contracting States may be assisted by technical advisers who may participate in the meetings but shall have no vote.
(c) A majority of the contracting States is required to constitute a quorum for the meetings of the Assembly. Unless otherwise provided in this Convention, decisions of the Assembly shall be taken by a majority of the votes cast.
See also: Article 47 Chicago Convention