The arbitration decision shall be final, unless that decision is found to be unenforceable by the courts of one of the Contracting States because of a violation of paragraph 5 of Article 25 or of any procedural rule included in the Terms of Reference or in this agreement that may reasonably have affected the decision. If a decision is found to be unenforceable for one of these reasons, the request for arbitration shall be considered not to have been made and the arbitration process shall be considered not to have taken place (except for the purposes of paragraphs 8 “Communication of information and confidentiality” and 13 “Costs”).
