(1) The Tribunal shall be deemed to be constituted and the pro- ceeding 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 with respect to a dispute between ______________________ and ____________________. “I shall keep confidential all information coming to my knowledge as a result ofmy participation in this proceeding,as well as the con- tents of any award made by the Tribunal. “I shall judge fairly as between the parties and shall not accept any instruction or compensation with regard to the proceeding from any source except as provided in the Administrative and Financial Regulations of the Centre. “Attached is a statement of (a) my past and present professional, business and other relationships (ifany) 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 cir- cumstance that subsequently arises during this proceeding.” Any arbitrator failing to sign such a declaration by the end of the first session of the Tribunal shall be deemed to have resigned.