Gregory Jaczko

Gregory Jaczko
Jaczko in 2006
13th Chairman of the Nuclear Regulatory Commission
In office
May 13, 2009  July 9, 2012
PresidentBarack Obama
Preceded byDale E. Klein
Succeeded byAllison Macfarlane
Personal details
Born (1970-10-29) October 29, 1970
Norristown, Pennsylvania, U.S.
Political partyDemocratic Party
SpouseLeigh Ann Caldwell
Alma materCornell University
University of Wisconsin–Madison

Gregory B. Jaczko (/ˈjɑːsk/; born October 29, 1970, Norristown, Pennsylvania) is a physicist who is the 13th and former chairman of the U.S. Nuclear Regulatory Commission (NRC) from 2009 to 2012. While at the NRC, he voted against the opening of new nuclear plants; an inspector general report found that he sought unilaterally and improperly to block the Yucca Mountain nuclear waste repository project from advancing. After leaving the NRC, Jaczko called for a global ban on nuclear power.