possible date to consider amendments to the treaty that would convert it into a comprehensive-test-ban treaty; and requested the States parties to the treaty to report on the progress of their efforts to the Assembly at its forty-third session (resolution 42126 B). At its forty-third session, the General Assembly welcomed the submission of an amendment proposal by the States parties to the treaty to the three depositary Governments for consideration at a conference of the parties to the treaty to be convened for that purpose in accordance with article II of the treaty (resolution 43163 B). At its forty-fourth session, u/ the General Assembly recommended that a preparatory committee, open to all parties to the Treaty, should be established to make arrangements for the amendment conference and that such preparatory committee should meet at United Nations Headquarters from 29 Way to 1 June 1990, followed by a one-week session of the conference from 4 to 6 June 1990 and a second substantive session from 7 to 18 January 1991) recommended also that the costs of the amendment. conference and its preparatory committee should be shared among States parties to the Treaty, on the basis of the present scale of assessments of the United Nations; requested the Secretary-General to render the necessary assistance and provide such services, including sumnary records, as might be required for the amenbent conference and its preparationt invited the amendment conference to transmit to the Assembly the documents it deemed appropriate to keep the Assembly duly informed of the ongoing work; and decided to include in the provisional agenda of its forty-fifth session the item entitled **Amendment of the Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space and under Water” (resolution 44/106). No advanced documentation expected. - n/ References for the forty-fourth session (agenda item 51): 
**Analysis**
The text appears to be related to international diplomacy and disarmament, specifically discussing the modification of a treaty related to nuclear weapon tests. This suggests that the category should be related to international relations, security, or peacekeeping.

**Category**
Natural resources and environment, Science and technology