Artikel 24

1. This Constitution shall be open for signature by all States specified in subparagraph (a) of Article 3, until 7 October 1979 at the Federal Ministry for Foreign Affairs of the Republic of Austria and subsequently at United Nations Headquarters in New York until the date this Constitution enters into force.
2. This Constitution shall be subject to ratification, acceptance or approval by signatory States. Instruments of ratification, acceptance or approval of such States shall be deposited with the Depositary.
3. After the entry into force of this Constitution in accordance with paragraph 1 of Article 25, States specified in subparagraph (a) of Article 3 that have not signed this Constitution, as well as States approved for membership pursuant to subparagraph (b) of that Article, may accede to this Constitution by depositing instruments of accession.