The Secretary established the mission of the Chief Technical Authority (CTA) and supporting Chief of Nuclear Safety (CNS) in 2005 to provide independent analysis, advice, and recommendations to DOE senior management, program offices, field offices, and contractors on the health of the oversight and practices associated with the nuclear facility safety. Beginning in 2011, the Deputy Secretary also delegated EM CTA responsibilities to the CNS.
Over the past 10 years, the CNS functions have evolved to address the full range of policy, implementation, and executive decision-making activities that bear directly on nuclear safety. Currently, these activities are carried out in support of the Under Secretary for Management and Performance, as directed by the Secretary and identified in multiple DOE Orders—for example, O 410.1, O 226.1, O 251.1, O 413.3, and O 450.2. These include:
Table 1. Original and expanded current set of CTA and CNS responsibilities.
|Nuclear Safety Requirement Concurrence and Exemption|
|Guidance for Implementing Nuclear Safety Requirements|
|Operational Awareness of Nuclear Safety Requirements Implementation|
|Maintaining Adequate Numbers of Technically Competent Personnel|
|Advising DOE-Wide Nuclear Safety-Related Research and Development Activities|
|Managing Differing Professional Opinion (DPO) Evaluation and Decision Authority at DOE Nuclear Facilities|
|Program and Project Management Safety Documentation and Critical Decisions|
|Safety Basis Documentation|
|EFCOG Engineering Practices Working Owners Group|