Adopted and opened for signature, ratification and accession by General Assembly Resolution 34/180 of 18 December 1979 and entered into force 3 September 1981, in accordance with article 27(1).
Adopted and opened for signature, ratification and accession by General Assembly resolution 44/25 of 20 November 1989 Entry into force 2 September 1990, in accordance with article 49.