Repetition of Proceedings. If based n Articles 11, 12(1), or 12(3), a sole arbitrator is replaced, then proceedings, including the hearings conducted earlier must be repeated. If the Chairman of the Tribunal is replaced, each testimony hearing session earlier may be repeated if deemed necessary by the other arbitrators. If any other arbitrator is replaced, the other arbitrators shall brief the new arbitrator and no prior hearings shall be repeated except in extraordinary circumstances where, and to the extent that, the Tribunal, in its sole discretion, deems necessary in the interests of natural justice. The repetition of any hearings for above reasons may be taken into account and, if the Tribunal deems it appropriate, the deadline for completion of case examination in the proceeding referred to in Article 4 paragraph (7) may be extended. CHAPTER V
