Approves, on a trial basis, the proposals of the Trusteeship Council concerning the form of its report to the General Assembly to the effect that a comprehensive report on a given Trust Territory should be presented by the Council only every third year coinciding with the Council's examination of the report on the Territory by a visiting mission, and that the Council should submit a shorter report in the intervening years, giving only an account of the developments and progress made during the year under review but including such background materials as would enable the Assembly to appreciate the significance of important developments, the comments and observations of Member States and the conclusions and recommendations of the Council ;