Entered into force February 9, 1978.
In accordance with Article XI, the Convention entered into force six months after the date of deposit of the fifth instrument of ratification or accession with the Depositary Government [United States of America]. In the case of each State which ratifies this Convention or accedes to it after the fifth instrument of ratification or accession has been deposited, this Convention shall enter into force six months after the deposit of its own instrument of ratification or accession.