Notwithstanding paragraphs 6, 15, 16 and 17, where, at any time after a request for arbitration has been made and before the arbitrators have delivered a decision to the competent authorities and the person who made the request for arbitration, the competent authorities notify in writing the arbitrators and that person that they have solved all the unresolved issues described in the Terms of Reference, the case shall be considered as solved under the mutual agreement procedure and no arbitration decision shall be provided.
