“(1) Either of the Contracting Parties may, at any time while the present Convention continues in force, by a written notification given to the other Contracting Party through the diplomatic channel, declare its desire that the operation of the present Convention, either in whole or in part or with such modifications as may be found necessary for special application in a particular case, shall extend to all or any of its territories for whose international relations it is responsible, which impose taxes substantially similar in character to those which are the subject of the present Convention. When the other Contracting Party has, by a written communication through the diplomatic channel, signified to the first Contracting Party that such notification is accepted in respect of such territory or territories, the present Convention, in whole or in part or with such modifications as may be found necessary for special application in a particular case, as specified in the notification, shall apply to the territory or territories named in the notification on and after the date or dates specified therein. None of the provisions of the present Convention shall apply to any such territory in the absence of such acceptance in respect of that territory.”