Gregory B. Jaczko

Gregory B. Jaczko is an American physicist and former government official who served as the chairman of the U.S. Nuclear Regulatory Commission (NRC) from 2009 to 2012. His tenure was marked by significant engagement with the aftermath of the Fukushima Daiichi nuclear disaster and by internal conflicts within the commission that led to his resignation. Following his government service, he has been a prominent critic of nuclear power and an advocate for renewable energy.

Early life and education

He was born in Norristown, Pennsylvania and developed an early interest in science. He pursued his undergraduate studies in physics at Cornell University, graduating with a Bachelor of Science degree. He then earned both a Master of Science and a Doctor of Philosophy in physics from the University of Wisconsin–Madison, where his doctoral research focused on experimental particle physics. His academic work provided a foundation in the scientific principles underlying nuclear technology and radiation.

Career at the Nuclear Regulatory Commission

His career in nuclear policy began on Capitol Hill, where he served as a science advisor to then-Representative Edward Markey and later to Senator Harry Reid. In 2005, he was appointed as a commissioner to the U.S. Nuclear Regulatory Commission by President George W. Bush. He was designated chairman of the NRC by President Barack Obama in 2009. His chairmanship was immediately tested by the Fukushima Daiichi nuclear disaster in 2011, prompting the NRC to establish the Near-Term Task Force to review U.S. reactor safety. He advocated for the rapid implementation of safety upgrades, a stance that sometimes put him at odds with the nuclear industry and other commissioners. His management style and policy direction led to public disputes with colleagues, including Commissioner Kristine Svinicki.

Post-NRC career and activities

After resigning from the NRC in 2012, he transitioned to roles in academia and consulting. He has served as a visiting professor at Princeton University and Georgetown University, lecturing on science policy and nuclear issues. He authored the book Confessions of a Rogue Nuclear Regulator, which critiques the nuclear power industry and the regulatory process. He has been a frequent commentator for media outlets like CNN and The New York Times, and he serves on the board of the Union of Concerned Scientists. His advocacy work focuses on promoting alternatives like solar power and wind power, arguing for a transition away from nuclear energy.

Controversies and criticism

His tenure as NRC chairman was fraught with controversy, culminating in an investigation by the Inspector General of the NRC. The report criticized his management style, citing an intimidating work environment for staff. The Nuclear Energy Institute and several members of the United States Congress, including Senator James Inhofe, were vocal critics of his regulatory approach. His handling of the Yucca Mountain nuclear waste repository project, which he effectively terminated, drew intense opposition from proponents of the site and led to hearings before the House Committee on Oversight and Government Reform. These conflicts ultimately contributed to the pressure for his resignation from the commission.

Personal life

He maintains a relatively private personal life. He is married and has children. His interests outside of professional work include outdoor activities and he is known to be an avid reader on topics of history and science policy. He resides in the Washington, D.C. metropolitan area.

Category:American physicists Category:United States Nuclear Regulatory Commission officials Category:1970 births Category:Living people