Members of the Foreign Service are expected to serve much of their career abroad, working at embassies and consulates around the world. By internal regulation the maximum stretch of domestic assignments should last no more than six years (extensions are possible at the six-year limit for medical reasons, to enable children to complete high school, etc. The eight year limit is difficult to pierce and is reserved for those who are deemed "critical to the service" and for those persons at the Deputy Assistant Secretary level). By law, however, Foreign Service personnel must go abroad after ten years of domestic service. The difficulties and the benefits associated with working abroad are many, especially in relation to family life.