Artikel XXI

Either Contracting Party may at any time give notice to the other Contracting Party of its decision to terminate this Agreement. Such notice shall be simultaneaously communicated to the International Civil Aviation Organization, and shall become effective twelve (12) months after the date of receipt of the notice by the other Contracting Party, unless such notice is withdrawn by mutual agreement before the expiration of this period. In the absence of acknowledgement of receipt by the other Contracting Party, notice shall be deemed to have been received fourteen (14) days after the receipt of the notice by the International Civil Aviation Organization.