Artikel 9

1. The present Convention shall be open to the signature of the Members of the Council of Europe. It shall be ratified. The instruments of ratification shall be deposited with the Secretary-General of the Council of Europe.
2. The Convention shall come into force as soon as three instruments of ratification have been deposited.
3. As regards any Signatory ratifying subsequently, the Convention shall come into force at the date of the deposit of its instrument of ratification.
4. The Secretary-General of the Council of Europe shall notify all the Members of the Council of Europe of the entry into force of the Convention, the names of the Contracting Parties which have ratified it and the deposit of all instruments of ratification which may be effected subsequently.
5. Any Contracting Party may specify the territories to which the provisions of the present Convention shall apply by addressing to the Secretary-General of the Council of Europe a declaration which shall be communicated by the latter to all the other Contracting Parties.