(1) The parties may agree to use one or two procedural languages in the proceeding. The parties shall consult with the Tribunal and the Secretary-General regarding the use of a language that is not an official language of the Centre. If the parties do not agree on the procedural language(s), each party may select one of the official languages of the Centre.
(2) In a proceeding with one procedural language:
a)
documents shall be filed and hearings shall be conducted in that procedural language;
b)
documents in another language shall be accompanied by a translation into that procedural language; and
c)
testimony in another language shall be interpreted into that procedural language.
(3) In a proceeding with two procedural languages:
a)
documents may be filed and hearings may be conducted in either procedural language, unless the Tribunal orders that a document be filed in both procedural languages or that a hearing be conducted with interpretation into both procedural languages;
b)
documents in another language shall be accompanied by a translation into either procedural language, unless the Tribunal orders translation into both procedural languages;
c)
testimony in another language shall be interpreted into either procedural language, unless the Tribunal orders interpretation into both procedural languages;
d)
the Tribunal and the Secretary-General may communicate in either procedural language; and
e)
all orders, decisions and the Award shall be rendered in both procedural languages, unless the parties agree otherwise.
(4) Translation of only the relevant part of a supporting document is sufficient, unless the Tribunal orders a party to provide a fuller or a complete translation. If the translation is disputed, the Tribunal may order a party to provide a certified translation.