If the appointment of the chairman, or any of the arbitrators or, as the case may be, conciliators, has not been made within the period prescribed above for such appointment, it shall be made by the Secretary- General of the United Nations within sixty days following the expiry of that period. The appointment of the chairman may be made by the Secretary-General either from the list or from the membership of the International Law Commission. Any of the periods within which appointments must be made may be extended by agreement between the parties to the dispute. If the United Nations is a party or is included in one of the parties to the dispute, the Secretary-General shall transmit the above-mentioned request to the President of the International Court of Justice, who shall perform the functions conferred upon the Secretary-General under this subparagraph.
Any vacancy shall be filled in the manner prescribed for the initial appointment.
The appointment of arbitrators or conciliators by an international organization provided for in paragraphs 1 and 2 shall be governed by the rules of that organization.
II. FUNCTIONING OF THE ARBITRAL TRIBUNAL
3.Unless the parties to the dispute otherwise agree, the Arbitral Tribunal shall decide its own procedure, assuring to each party to the dispute a full opportunity to be heard and to present its case.
4. The Arbitral Tribunal, with the consent of the parties to the dispute, may invite any interested State or international organization to submit to it its views orally or in writing.
5.Decisions of the Arbitral Tribunal shall be adopted by a majority vote of the members. In the event of an equality of votes, the vote of the Chairman shall be decisive.
6. When one of the parties to the dispute does not appear before the Tribunal or fails to defend its case, the other party may request the Tribunal to continue the proceedings and to make its award. Before making its award, the Tribunal must satisfy itself not only that it has jurisdiction over the dispute but also that the claim is well founded in fact and law.
7. The award of the Arbitral Tribunal shall be confined to the subject matter of the dispute and state the reasons on which it is based. Any member of the Tribunal may attach a separate or dissenting opinion to the award.
8. The award shall be final and without appeal. It shall be complied with by all parties to the dispute.
9. The Secretary-General shall provide the Tribunal with such assistance and facilities as it may require. The expenses of the Tribunal shall be borne by the United Nations.
III. FUNCTIONING OF THE CONCILIATION COMMISSION
10. The Conciliation Commission shall decide its own procedure. The Commission, with the consent of the parties to the dispute, may invite any party to the treaty to submit to it its views orally or
