在阿鲁沙分支机构，目前所有支助职能中有 67%由坦桑尼亚国民履行，18%由其他非洲国家国民履行，其余15%由其他区域组的国民履行。在海牙分支机构，所有支助职能中 30%由荷兰国民履行，25%由西欧和其他国家组的其他国家国民履行，其余 45%由其他区域组的国民履行。
At the Arusha branch, currently 67 per cent of all support functions are performed by Tanzanian nationals, 18 per cent by nationals of other African States and the remaining 15 per cent by staff who are nationals of the other regional groups. At the branch in The Hague, 30 per cent of all support functions are performed by nationals of the Netherlands, 25 per cent by nationals of other States in the Group of Western European and Other States and the remaining 45 per cent by nationals of the other regional groups.