NRC's primary mission is to protect the public health and safety, and the environment from the effects of radiation from nuclear reactors, materials, and waste facilities to promote the common defense and security. The Chairman is the principal executive officer of and the official spokesman for the NRC. As principal executive officer, the Chairman is responsible for conducting the administrative, organizational, long-range planning, budgetary, and certain personnel functions of the agency. The Chairman has ultimate authority for all NRC functions pertaining to an emergency involving an NRC license. The Chairman's actions are governed by the general policies of the Commission.
The Commission as a collegial body formulates policies, develops regulations governing nuclear reactor and nuclear material safety, issues orders to licensees, and adjudicates legal matters.