Artikel 31

Any State which has become a Member of the Hague Conference on Private International Law after the date of its Twelfth Session, or which is a Member of the United Nations or of a specialised agency of that Organisation, or a Party to the Statute of the International Court of Justice may accede to this Convention after it has entered into force in accordance with the first paragraph of Article 35.
The instrument of accession shall be deposited with the Ministry of Foreign Affairs of the Netherlands.
Such accession shall have effect only as regards the relations between the acceding State and those Contracting States which have not raised an objection to its accession in the twelve months after the receipt of the notification referred to in sub-paragraph 3 of Article 37.
Such an objection may also be raised by Member States at the time when they ratify, accept or approve the Convention after an accession. Any such objection shall be notified to the Ministry of Foreign Affairs of the Netherlands.