United States Nuclear Regulatory Commission - Protecting People and the Environment

Kenneth O’Brien

Mr. O’Brien joined the NRC in 1990 and is currently the Director for the Division of Reactor Safety.  Before that, he was the Deputy and Acting Director, Division of Reactor Projects, Region III.  He started his NRC career as a Reactor Engineer in Region III.  From 1990 to 2001, he was a Resident and Senior Resident Inspector at the Kewaunee Nuclear Power and Paducah Gaseous Diffusion Plants and was involved in the NRC’s initial certification of the enrichment plants in 1997.  In 2001, Mr. O’Brien returned to the Region III office and held progressively more responsible positions, including Senior Reactor Engineer, Branch Chief of the Fuel Cycle Program, Chief of the Materials Inspection Branch, Chief of the Decommissioning Branch, Director of the Enforcement and Investigation Coordination Staff, and Deputy Director for the Division of Reactor Safety.  Mr. O’Brien graduated from the Senior Executive Service Candidate Development Program.  Prior to joining the NRC, Mr. O’Brien worked as a Radiation Consultant for the State of Wisconsin and as a Health Physicist for the Department of Energy.  He is a graduate of the University of Wisconsin, earning a B.S. degree in Nuclear Engineering and has completed graduate studies in Nuclear Engineering.  Mr. O’Brien is a recipient of the NRC Meritorious Service Award.

Page Last Reviewed/Updated Wednesday, July 17, 2019