A/RES/51/226 Page 13 (x) Linguistic qualifications in the context of the performance appraisal system and the recruitment and promotion policy; (xi) The feasibility of holding the national competitive examinations in the six official languages, including proposals to ensure that nationals of Member States whose mother tongue is not an official language of the United Nations are not placed at a disadvantage; (xii) Mobility; (xiii) The efforts made by the Secretary-General to achieve the level of 70 per cent of permanent appointments in posts subject to geographical distribution; (xiv) Detailed proposals for the implementation of a dual-track system of career and non-career appointments; (xv) The hiring of retirees and the hiring and use of consultants. 95th plenary meeting 3 April 1997