Artikel 33

1. This Convention may be denounced by notification in writing to the depositary. The denunciation may be limited to certain territorial units of a non-unified legal system to which this Convention applies.
2. The denunciation shall take effect on the first day of the month following the expiration of twelve months after the date on which the notification is received by the depositary. Where a longer period for the denunciation to take effect is specified in the notification, the denunciation shall take effect upon the expiration of such longer period after the date on which the notification is received by the depositary.