Artikel 8

(a). If either of the Contracting Parties considers it desirable to modify any provision or provisions of the Agreement, or its Annex, the competent aeronautical authorities of the Contracting Parties shall consult in order to realize such modification(s). Such consultation shall begin within a period of 60 days from the date of request of either of the aeronautical authorities. In case the said authorities arrive at an understanding about the modifications to be made, said modifications shall come into force after having been confirmed by an exchange of diplomatic notes.
(b). Changes made by either Contracting Party in the specified air routes, or omissions of any points on the specified air routes, on any or all flights except the change of points served by the designated airline or airlines in the territory of the other Contracting Party, shall not be considered as modifications of this Agreement. The aeronautical authorities of either Contracting Party may therefore, proceed unilaterally to make such changes or omissions provided, however, that notice of any change or omission shall be given without delay to the aeronautical authorities of the other Contracting Party.