A/RES/67/237 Pattern of conferences programmes of work and to notify conference services, well in advance, of any cancellations so that unutilized conference-servicing resources may, to the extent possible, be reassigned to meetings of regional and other major groupings of Member States; 12. Welcomes the efforts of all users of conference services to inform the Secretariat as early as possible of any cancellation of service requests so as to allow for such services to be smoothly redeployed to other meetings; 13. Notes with satisfaction that, in accordance with several resolutions of the General Assembly, including resolution 66/233, section II.A, paragraph 12, in conformity with the headquarters rule, all meetings of Nairobi-based United Nations bodies were held in Nairobi in 2011, and requests the Secretary-General to report thereon to the Assembly at its sixty-eighth session through the Committee on Conferences; 14. Notes with concern the recurring underutilization of the conference centre of the Economic Commission for Africa, and recognizes the ongoing promotional efforts and initiatives of the Commission; 15. Requests the Secretary-General to continue to explore additional means to increase the utilization of the conference centre of the Economic Commission for Africa, including with its partners such as the African Union, and to report thereon, including on the impact of the initiatives of the Commission, to the General Assembly at its sixty-eighth session; 16. Also requests the Secretary-General to encourage the heads of entities of the United Nations system to use as a matter of priority, when applicable, the conference centre of the Economic Commission for Africa to ensure greater utilization of the conference facilities; 17. Further requests the Secretary-General to formulate a more competitive pricing structure and an appropriate marketing strategy for the conference centre of the Economic Commission for Africa; 18. Recognizes the proactive efforts of the Secretary-General to identify ways to enhance efficiency and effectiveness in conference services; 19. Requests the Secretary-General to propose, at its sixty-eighth session, a comprehensive review of conference servicing, highlighting any duplication or redundancy, with a view to identifying innovative ideas, potential synergies and other cost-saving measures, without compromising the quality of the services; 20. Reiterates its request to the Committee on Conferences that it consult those bodies that have consistently utilized less than the applicable benchmark of their allocated resources for the past three years, with a view to making appropriate recommendations in order to achieve the optimum utilization of conferenceservicing resources, and urges the secretariats and bureaux of bodies that underutilize their conference-servicing resources to work more closely with the Department for General Assembly and Conference Management of the Secretariat and to consider changes to their programmes of work, as appropriate, including adjustments based on previous patterns of recurring agenda items, with a view to making improvements in their utilization factors; 21. Requests the Chair of the Committee on Conferences to address a letter to the presiding officers of intergovernmental bodies based at duty stations other than New York if their utilization factor falls below the benchmark of 80 per cent; 4/12