Artikel 18

1. Decisions of the Tribunal both as to its procedure and its place of meeting and as to any controversy laid before it, shall be taken by majority vote of its members; the absence or abstention of one of the members of the Tribunal for whose nomination the Parties were responsible shall not constitute an impediment to the Tribunal reaching a decision. In cases of equal voting, the Chairman shall cast the deciding vote.
2. The Parties shall facilitate the work of the Tribunal and in particular, in accordance with their legislation, and using all means at their disposal:
(a) provide the Tribunal with the necessary documents and information;
(b) enable the Tribunal to enter their territory, to hear witnesses or experts, and to visit the scene.
3. Absence or default of one Party shall not constitute an impediment to the procedure.