(2) Except as the parties otherwise agree, the presence of a majority of the members of the Tribunal shall be required at its sittings.

(3) The President of the Tribunal shall fix the date and hour of its sittings.

Article 22

Deliberations of the Tribunal

(1) The deliberations of the Tribunal shall take place in private and remain secret.

(2) Only members of the Tribunal shall take part in its deliberations. No other person shall be admitted unless the Tribunal decides otherwise.