Where a TIR carnet has not been discharged or has been discharged conditionally, the competent authorities shall not have the right to claim payment of the sums mentioned in Article 8 (1) and (2) from the guaranteeing association unless, within a period of one year from the date of acceptance of the TIR carnet by those authorities, they have notified the association in writing of the non-discharge or conditional discharge. The same provision shall apply where the certificate of discharge was obtained in an improper or fraudulent manner, save that the period shall be two years.
