Article 12
The Secretary General of the Council of Europe shall notify the member States of the Council of Europe, and any State that has acceded to this Convention of:
a) any signature;
b) any deposit of an instrument of ratification, acceptance, approval or accession;
c) any date of entry into force of this Convention in accordance with Article 9 thereof;
d) any declaration received in pursuance of the provisions of paragraph 2 of Article 2 or of paragraph 5 of Article 3;
e) any notification received in pursuance of the provisions of Article 11 and the date on which denunciation takes effect.