(1) A party may file a proposal to disqualify one or more arbitrators (“proposal”) on the following grounds:
(a) that the arbitrator was ineligible for appointment to the Tribunal pursuant to Rule 21(2)(a)-(c); or
(b) that circumstances exist that give rise to justifiable doubts as to the qualities of the arbitrator required by Rule 22.
(2) The following procedure shall apply:
(a) the proposal shall be filed after the constitution of the Tribunal and within 21 days after the later of:
(i) the constitution of the Tribunal; or
(ii) the date on which the party proposing the disqualification first knew or first should have known of the facts on which the proposal is based;
(b) the proposal shall include the grounds on which it is based, a statement of the relevant facts, law and arguments, and any supporting documents;
(c) the other party shall file its response and any supporting documents within 21 days after receipt of the proposal;
(d) the arbitrator to whom the proposal relates may file a statement that is limited to factual information relevant to the proposal. The statement shall be filed within five days after the earlier of receipt of the response or expiry of the time limit referred to in paragraph (2)(c); and
(e) each party may file a final written submission on the proposal within seven days after the earlier of receipt of the statement or expiry of the time limit referred to in paragraph (2)(d).
(3) If the other party agrees to the proposal prior to the dispatch of the decision referred to in Rule 31, the arbitrator shall resign in accordance with Rule 33.
(4) The proceeding shall be suspended upon the filing of the proposal until a decision on the proposal has been made, except to the extent that the parties agree to continue the proceeding.
(1) The Secretary-General shall make the decision on the proposal.
(2) The Secretary-General shall use best efforts to decide any proposal within 30 days after the expiry of the time limit referred to in Rule 30(2)(e).
If an arbitrator becomes incapacitated or fails to perform the duties required of an arbitrator, the procedure in Rules 30 and 31 shall apply.
An arbitrator may resign by notifying the Secretary-General and the other members of the Tribunal.
(1) The Secretary-General shall notify the parties of any vacancy on the Tribunal.
(2) The proceeding shall be suspended from the date of notice of the vacancy until the vacancy is filled.
(3) A vacancy on the Tribunal shall be filled by the method used to make the original appointment, except that the Secretary-General shall fill any vacancy that has not been filled within 45 days after the notice of vacancy.
(4) Once a vacancy has been filled and the Tribunal has been reconstituted, the proceeding shall continue from the point it had reached at the time the vacancy was notified. Any portion of a hearing shall be recommenced if the newly appointed arbitrator considers it necessary to decide a pending matter.