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1. If either of the Contracting Parties considers it desirable to modify any provisions of the present Agreement, it may request consultation with the other Contracting Party. Such consultation, which may be between Aeronautical Authorities and which may be through discussion or by correspondence, shall begin within a period of sixty (60) days of the date of the request. Any modifications so agreed shall come into force when they have been confirmed by an exchange of diplomatic notes, which shall state that the formalities required by the national legislation of each Contracting Party have been completed.
2. Modifications to the Annex of this Agreement may be made by direct agreement between the competent Aeronautical Authorities of the Contracting Parties and shall come into force upon exchange of notes through diplomatic channels.