Article 12

If, after the third meeting, one or more seats still remain unfilled, a joint conference consisting of six members, three appointed by the General Assembly and three by the Security Council, may be formed at any time at the request of either the General Assembly or the Security Council, for the purpose of choosing by the vote of an absolute majority one name for each seat still vacant, to submit to the General Assembly and the Security Council for their respective acceptance.

If the joint conference is unanimously agreed upon any person who fulfils the required conditions, he may be included in its list, even though he was not included in the list of nominations referred to in Article 7.

If the joint conference is satisfied that it will not be succesful in procuring an election, those members of the Court who have already been elected shall, within a period to be fixed by the Security Council, proceed to fill the vacant seats by selection from among those candidates who have obtained votes either in the General Assembly or in the Security Council.

In the event of an equality of votes among the judges, the eldest judge shall have a casting vote.