any one year, may accept an invitation from one of its participating organizations to hold its other session or sessions at the headquarters of that particular organization; (h) The sessions of the Legal Sub-Committee of the Committee on the Peaceful Uses of Outer Space shall be held alternately at United Nations Headquarters and the United Nations Office at Geneva; (i) The Conference on Disarmament shall meet at the United Nations Office at Geneva ; 5. Dec ides that United Nations bodies may hold sessions away from their established headquarters when a Government issuing an invitation for a session to be held within its territory has agreed to defray, after consultation with the Secretary-General as to their nature and possible extent, the actual additional costs directly or indirectly involved; Reaffirms its instruction to all its subsidiary organs to complete their reports for the following session of the General Assembly not later than 1 September and to report any activity after the adoption of such reports, where necessary, to the Assembly in addenda to the reports of the organs concerned; 7. Decides that no subsidiary organ of the General Assembly may meet at United Nations Headquarters during a regular session of the Assembly unless explicitly authorized by the Assembly; 8. Requests the Secretary-General to continue to provide interpretation services for informal meetings on an ad hoc basis in accordance with established practice; 9. Authorizes the Secretary-General to apply maximum overprogramming of meetings whenever possible to achieve better utilization of conference resources; 10. Requests the Committee on Conferences and the Secretary-General to take account of the following principles in drawing up the draft calendar of conferences and meetings: (a) The biennial calendar of conferences and meetings approved by the General Assembly shall govern the meetings programme during the period concerned;