After serving as chairman of the U.S. Nuclear Regulatory Commission for three years, Gregory Jaczko on May 21 announced his resignation, effective upon confirmation of a successor. Chairman since 2009 ...

After an eight-year tenure at the agency, the head of the nuclear safety agency says he's leaving. Nuclear Regulatory Commission Chairman and Commissioner Gregory Jaczko has announced he’s stepping ...

(AP) A former U.S. nuclear regulatory chief said Tuesday that leaks of contaminated water at the crippled Fukushima plant had been known since early in the crisis and have worsened because Japan acted ...

Rep. Lois Capps, D-Santa Barbara, on Wednesday questioned Nuclear Regulatory Commission Chairman Gregory Jaczko at an Energy and Commerce Committee hearing. Capps asked Jaczko when she could expect a ...

Senate Majority Leader Harry Reid (D-Nev.) is leaping to the defense of Nuclear Regulatory Commission Chairman Gregory Jaczko, his former aide, who is under attack from other NRC commissioners ...

Gregory Jaczko did not exceed his authority as chairman of the US Nuclear Regulatory Commission during the Fukushima crisis, although he intimidated staff and gave 'inconsistent' evidence to a ...

At a dinner in Washington celebrating his mother's birthday on March 26, Nuclear Regulatory Commission Chairman Gregory Jaczko received an urgent phone call: The nuclear crisis besetting Japan ...

WASHINGTON (AP) -- The Nuclear Regulatory Commission says three U.S. nuclear power plants need increased oversight from federal regulators, although officials stressed that all are operating safely.

Gregory Jaczko's Yucca Mountain victory lap didn't last long. Two days after the Nuclear Regulatory Commission chairman claimed to have been vindicated by an inspector general report, the public ...

WASHINGTON, May 2 (Reuters) - The U.S. nuclear safety regulator is studying whether to require plants to more quickly move radioactive waste out of pools as part of a review on safety in the wake of ...