As a general rule the arbitral procedure comprises two distinct phases; preliminary examination and discussion.

Preliminary examination consists in the communication by the respective agents to the members of the Tribunal and to the opposite party of all printed or written Acts and of all documents containing the arguments invoked in the case. This communication shall be made in the form and within the periods fixed by the Tribunal in accordance with Article 49.

Discussion consists in the oral development before the Tribunal of the arguments of the parties.