The Rules of Procedure for Arbitration Proceedings (the Arbitration Rules) of ICSID were adopted by the Administrative Council of the Centre pursuant to Article 6(1)(c) of the ICSID Convention.

The Arbitration Rules are supplemented by the Administrative and Financial Regulations of the Centre, in particular by Regulations 14-16, 22-31 and 34(1).

The Arbitration Rules cover the period of time from the dispatch of the notice of registration of a request for arbitration until an award is rendered. The transactions previous to that time are to be regulated in accordance with the Institution Rules.

ARBITRATION RULES

Chapter I
Establishment of the Tribunal

Rule 1
General Obligations

(1) Upon notification of the registration of the request for arbitration, the parties shall, with all possible dispatch, proceed to constitute a Tribunal, with due regard to Section 2 of Chapter IV of the Convention.

(2) Unless such information is provided in the request, the parties shall communicate to the Secretary-General as soon as possible any provisions agreed by them regarding the number of arbitrators and the method of their appointment.

(3) The majority of the arbitrators shall be nationals of States other than the State party to the dispute and of the State whose national is a party to the dispute, unless the sole arbitrator or each individual member of the Tribunal is appointed by agreement of the parties. Where the Tribunal is to consist of three members, a national of either of these States may not be appointed as an arbitrator by a party without the agreement of the other party to the dispute. Where the Tribunal is to consist of five or more members, nationals of either of these States may not be appointed as arbitrators by a party if appointment by the other party of the same number of arbitrators of either of these nationalities would result in a majority of arbitrators of these nationalities.

(4) No person who had previously acted as a conciliator or arbitrator in any proceeding for the settlement of the dispute may be appointed as a member of the Tribunal.

Rule 2
Method of Constituting the Tribunal in the Absence of Previous Agreement

(1) If the parties, at the time of the registration of the request for arbitration, have not agreed upon the number of arbitrators and the method of their appointment, they shall, unless they agree otherwise, follow the following procedure:

(a) the requesting party shall, within 10 days after the registration of the request, propose to the other party the appointment of a sole arbitrator or of a specified uneven number of arbitrators and specify the method proposed for their appointment;

(b) within 20 days after receipt of the proposals made by the requesting party, the other party shall:

(i) accept such proposals; or

(ii) make other proposals regarding the number of arbitrators and the method of their appointment;

(c) within 20 days after receipt of the reply containing any such other proposals, the requesting party shall notify the other party whether it accepts or rejects such proposals.

(2) The communications provided for in paragraph (1) shall be made or promptly confirmed in writing and shall either be transmitted through the Secretary-General or directly between the parties with a copy to the Secretary-General. The parties shall promptly notify the Secretary-General of the contents of any agreement reached.

(3) At any time 60 days after the registration of the request, if no agreement on another procedure is reached, either party may inform the Secretary-General that it chooses the formula provided for in Article 37(2)(b) of the Convention. The Secretary-General shall thereupon promptly inform the other party that the Tribunal is to be constituted in accordance with that Article.

Rule 3
Appointment of Arbitrators to a Tribunal Constituted in Accordance with Convention Article 37(2)(b)

(1) If the Tribunal is to be constituted in accordance with Article 37(2)(b) of the Convention:

(a) either party shall in a communication to the other party:

(i) name two persons, identifying one of them, who shall not have the same nationality as nor be a national of either party, as the arbitrator appointed by it, and the other as the arbitrator proposed to be the President of the Tribunal; and

(ii) invite the other party to concur in the appointment of the arbitrator proposed to be the President of the Tribunal and to appoint another arbitrator;

(b) promptly upon receipt of this communication the other party shall, in its reply:

(i) name a person as the arbitrator appointed by it, who shall not have the same nationality as nor be a national of either party; and

(ii) concur in the appointment of the arbitrator proposed to be the President of the Tribunal or name another person as the arbitrator proposed to be President;

(c) promptly upon receipt of the reply containing such a proposal, the initiating party shall notify the other party whether it concurs in the appointment of the arbitrator proposed by that party to be the President of the Tribunal.

(2) The communications provided for in this Rule shall be made or promptly confirmed in writing and shall either be transmitted through the Secretary-General or directly between the parties with a copy to the Secretary-General.

Rule 4
Appointment of Arbitrators by the Chairman of the Administrative Council

(1) If the Tribunal is not constituted within 90 days after the dispatch by the Secretary-General of the notice of registration, or such other period as the parties may agree, either party may, through the Secretary-General, address to the Chairman of the Administrative Council a request in writing to appoint the arbitrator or arbitrators not yet appointed and to designate an arbitrator to be the President of the Tribunal.

(2) The provision of paragraph (1) shall apply mutatis mutandis in the event that the parties have agreed that the arbitrators shall elect the President of the Tribunal and they fail to do so.

(3) The Secretary-General shall forthwith send a copy of the request to the other party.

(4) The Chairman shall use his best efforts to comply with that request within 30 days after its receipt. Before he proceeds to make an appointment or designation, with due regard to Articles 38 and 40(1) of the Convention, he shall consult both parties as far as possible.

(5) The Secretary-General shall promptly notify the parties of any appointment or designation made by the Chairman.

Rule 5
Acceptance of Appointments

(1) The party or parties concerned shall notify the Secretary-General of the appointment of each arbitrator and indicate the method of his appointment.

(2) As soon as the Secretary-General has been informed by a party or the Chairman of the Administrative Council of the appointment of an arbitrator, he shall seek an acceptance from the appointee.

(3) If an arbitrator fails to accept his appointment within 15 days, the Secretary-General shall promptly notify the parties, and if appropriate the Chairman, and invite them to proceed to the appointment of another arbitrator in accordance with the method followed for the previous appointment.

Rule 6
Constitution of the Tribunal

(1) The Tribunal shall be deemed to be constituted and the proceeding to have begun on the date the Secretary-General notifies the parties that all the arbitrators have accepted their appointment.

(2) Before or at the first session of the Tribunal, each arbitrator shall sign a declaration in the following form:

To the best of my knowledge there is no reason why I should not serve on the Arbitral Tribunal constituted by the International Centre for Settlement of Investment Disputes with respect to a dispute between ___________________and___________________.

“I shall keep confidential all information coming to my knowledge as a result of my participation in this proceeding, as well as the contents of any award made by the Tribunal.

“I shall judge fairly as between the parties, according to the applicable law, and shall not accept any instruction or compensation with regard to the proceeding from any source except as provided in the Convention on the Settlement of Investment Disputes between States and Nationals of Other States and in the Regulations and Rules made pursuant thereto.

“Attached is a statement of (a) my past and present professional, business and other relationships (if any) with the parties and (b) any other circumstance that might cause my reliability for independent judgment to be questioned by a party. I acknowledge that by signing this declaration, I assume a continuing obligation promptly to notify the Secretary-General of the Centre of any such relationship or circumstance that subsequently arises during this proceeding.”

Any arbitrator failing to sign a declaration by the end of the first session of the Tribunal shall be deemed to have resigned.

Rule 7
Replacement of Arbitrators

At any time before the Tribunal is constituted, each party may replace any arbitrator appointed by it and the parties may by common consent agree to replace any arbitrator. The procedure of such replacement shall be in accordance with Rules 1, 5 and 6.

Rule 8
Incapacity or Resignation of Arbitrators

(1) If an arbitrator becomes incapacitated or unable to perform the duties of his office, the procedure in respect of the disqualification of arbitrators set forth in Rule 9 shall apply.

(2) An arbitrator may resign by submitting his resignation to the other members of the Tribunal and the Secretary-General. If the arbitrator was appointed by one of the parties, the Tribunal shall promptly consider the reasons for his resignation and decide whether it consents thereto. The Tribunal shall promptly notify the Secretary-General of its decision.

Rule 9
Disqualification of Arbitrators

(1) A party proposing the disqualification of an arbitrator pursuant to Article 57 of the Convention shall promptly, and in any event before the proceeding is declared closed, file its proposal with the Secretary-General, stating its reasons therefor.

(2) 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 of the Administrative Council; and

(b) notify the other party of the proposal.

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

(4) Unless the proposal relates to a majority of the members of the Tribunal, the other members shall promptly consider and vote on the proposal in the absence of the arbitrator concerned. If those members are equally divided, they shall, through the Secretary-General, promptly notify the Chairman of the proposal, of any explanation furnished by the arbitrator concerned and of their failure to reach a decision.

(5) 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.

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

Rule 10
Procedure during a Vacancy on the Tribunal

(1) The Secretary-General shall forthwith notify the parties and, if necessary, the Chairman of the Administrative Council of the disqualification, death, incapacity or resignation of an arbitrator and of the consent, if any, of the Tribunal to a resignation.

(2) Upon the notification by the Secretary-General of a vacancy on the Tribunal, the proceeding shall be or remain suspended until the vacancy has been filled.

Rule 11
Filling Vacancies on the Tribunal

(1) Except as provided in paragraph (2), a vacancy resulting from the disqualification, death, incapacity or resignation of an arbitrator shall be promptly filled by the same method by which his appointment had been made.

(2) In addition to filling vacancies relating to arbitrators appointed by him, the Chairman of the Administrative Council shall appoint a person from the Panel of Arbitrators:

(a) to fill a vacancy caused by the resignation, without the consent of the Tribunal, of an arbitrator appointed by a party; or

(b) at the request of either party, to fill any other vacancy, if no new appointment is made and accepted within 45 days of the notification of the vacancy by the Secretary-General.

(3) The procedure for filling a vacancy shall be in accordance with Rules 1, 4(4), 4(5), 5 and, mutatis mutandis, 6(2).

Rule 12
Resumption of Proceeding after Filling a Vacancy

As soon as a vacancy on the Tribunal has been filled, the proceeding shall continue from the point it had reached at the time the vacancy occurred. The newly appointed arbitrator may, however, require that the oral procedure be recommenced, if this had already been started.

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