Artikel 29

Any State not falling within the provisions of the first paragraph of Article 27 may accede to this Convention after it has entered into force in accordance with the first paragraph of article 28. The instrument of accession shall be deposited with the Ministry of Foreign Affairs of the Netherlands.
This Convention shall enter into force for such a State in the absence of any objection from a State which has ratified this Convention before such deposit, notified to the Ministry of Foreign Affairs of the Netherlands within a period of six months after the date on which the said Ministry has notified it of such accession.
In the absence of any such objection, this Convention shall enter into force for the acceding State on the first day of the month following the expiration of the last of the periods referred to in the preceding paragraph.