职权范围

terms of reference;purview;limits(or scope) of one’s functions and powers;province
核武器何时或是否使用之类的问题完全属于总统的～。Issues such as when or if nuclear weapons would be used are exclusively the province of the President’s office./在～内within one’s functions and powers/中立国遣返委员会的～ Terms of Reference for the Neutral Nations Repatriation Commission