The European Convention on Nationality (E.T.S. No. 166) was signed in Strasbourg on 6 November 1997. It is a comprehensive convention of the Council of Europe dealing with the law of nationality. The Convention is open for signature by the member States of the Council of Europe and the non-member States which have participated in its elaboration and for accession by other non-member States. The Convention came into force on 1 March 2000 after ratification by 3 countries. As at 6 March 2014, the Convention has been signed by 29 countries, but has been ratified by only 20 of those countries.