38.18. A highly qualified and competent secretariat support structure within the United Nations Secretariat, drawing, inter alia, on the expertise gained in the UNCED preparatory process is essential for the follow-up to the Conference and the implementation of Agenda 21. This secretariat support structure should provide support to the work of both intergovernmental and interagency coordination mechanisms. Concrete organizational decisions fall within the competence of the Secretary-General as the chief administrative officer of the Organization, who is requested to report on the provisions to be made, covering staffing implications, as soon as practicable, taking into account gender balance as defined in Article 8 of the UN Charter, and the need for the optimum use of existing resources in the context of current and ongoing restructuring of the UN Secretariat.