Provisional Rules of Procedure (S/96/Rev.7)
Chapter I: Meetings
Meetings of the Security Council shall, with the exception of the periodic meetings referred to in rule 4, be held at the call of the President at any time he deems necessary, but the interval between meetings shall not exceed fourteen days.
The President shall call a meeting of the Security Council at the request of any member of the Security Council.
The President shall call a meeting of the Security Council if a dispute or situation is brought to the attention of the Security Council under Article 35 or under Article I I (3) of the Charter, or if the General Assembly makes recommendations or refers any question to the Security Council under Article 11 (2), or if the Secretary-General brings to the attention of the Security Council any matter under Article 99.
Periodic meetings of the Security Council called for in Article 28 (2) of the Charter shall be held twice a year, at such times as the Security Council may decide.
Meetings of the Security Council shall normally be held at the seat of the United Nations.
Any member of the Security-Council or the Secretary-General may propose that the Security Council should meet at another place. Should the Security Council accept any such proposal, it shall decide upon the place and the period during which the Council shall meet at such place.