in alphabetical order
The text of the Convention was adopted at the United nations Headquarters, New York on the 9 May 1992; it was open for signature at the Rio de Janeiro from 4 to 14 June 1992, and thereafter at the United Nations Headquarters, New York, from 20 June 1992 to 19 June 1993. By that date the Convention had received 166 signatures. The Convention entered into force on 21 March 1994. Those States that have not signed the Convention may accede to it at any time.
For those States that ratify, accept or approve the Convention or accede thereto after the date of entry into force, the Convention shall enter into force on the ninetieth day after the date of the deposit by such State of its instrument of ratification, acceptance, approval or accession.
These pages contains information concerning dates of signature and ratification received from the Secretary-General of the United nations, as at 29 May 1997. The dates in the column entitled "date of ratification" are those of the receipt of the instrument of ratification (R), acceptance (At), approval (Ap) or accession (Ac).
as at 15-October-97 the Convention received 171 instuments of ratification
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