UN General Assembly
1963

11. Members will recall that on 4 December 1961 the General Assembly unanimously passed a resolution on the prevention of the further dissemination of nuclear weapons. The operative paragraphs of that resolution [1665 (XVI)] read as follows: "1. Calls upon all States, and in particular upon the States at present possessing nuclear weapons, to use their best endeavours to secure the conclusion of an international agreement containing provisions under which the nuclear States would undertake to refrain from relinquishing control of nuclear weapons and from transmitting the information necessary for their manufacture to States not possessing such weapons, and provisions under which States not possessing nuclear weapons would undertake not to manufacture or otherwise acquire control of such weapons; "2. Urges all States to co-operate to those ends.”