The arbitration decision must be communicated to the competent authorities and the person who made the request for arbitration within six months from the date on which the Chair notifies in writing the competent authorities and the person who made the request for arbitration that he has received all the information necessary to begin consideration of the case. Notwithstanding the first part of this paragraph, if at any time within two months from the date on which the last arbitrator was appointed, the Chair, with the consent of one of the competent authorities, notifies in writing the other competent authority and the person who made the request for arbitration that he has not received all the information necessary to begin consideration of the case, then
- a)if the Chair receives the necessary information within two months after the date on which that notice was sent, the arbitration decision must be communicated to the competent authorities and the person who made the request for arbitration within six months from the date on which the information was received by the Chair, and
- b)if the Chair has not received the necessary information within two months after the date on which that notice was sent, the arbitration decision must, unless the competent authorities agree otherwise, be reached without taking into account that information even if the Chair receives it later and the decision must be communicated to the competent authorities and the person who made the request for arbitration within eight months from the date on which the notice was sent.
