Artikel 10

This Agreement shall enter into force on 1 January 1970 for a period of one year. If the Agreement has not been denounced thirty days before the expiry of that period, it shall be deemed to have been renewed indefinitely. After the first period of one year each signatory Government may denounce the Agreement by giving thirty day's notice to the Belgian Government.
The Agreement shall cease to be effective if one of the signatory Governments denounces it.
The Belgian Government shall inform the other signatory Governments of the receipt of the thirty day's notice referred to in this article.