Article 15
Disqualification of Arbitrators

(1) A party may propose to a Tribunal the disqualification of any of its members on account of any fact indicating a manifest lack of the qualities required by Article 8 of these Rules, or on the ground that he was ineligible for appointment to the Tribunal under Article 7 of these Rules.

(2) A party proposing the disqualification of an arbitrator shall promptly, and in any event before the proceeding is declared closed, file its proposal with the Secretary-General, stating its reasons therefor.

(3) The Secretary-General shall forthwith:

(a) transmit the proposal to the members of the Tribunal and, if it relates to a sole arbitrator or to a majority of the members of the Tribunal, to the Chairman; and

(b) notify the other party of the proposal.

(4) The arbitrator to whom the proposal relates may, without delay, furnish explanations to the Tribunal or the Chairman, as the case may be.

(5) The decision on any proposal to disqualify an arbitrator shall be taken by the other members of the Tribunal except that where those members are equally divided, or in the case of a proposal to disqualify a sole arbitrator, or a majority of the arbitrators, the Chairman shall take that decision.

(6) Whenever the Chairman has to decide on a proposal to disqualify an arbitrator, he shall use his best efforts to take that decision within 30 days after he has received the proposal.

(7) The proceeding shall be suspended until a decision has been taken on the proposal.