Ms Svinicki has served as a commissioner under three administrations and is the longest serving member of the commission. She was first appointed to the commission by George Bush in 2007, was reappointed in 2012 by Barack Obama, and was designated chairman by Donald Trump on 23 January 2017. Her term would have ended on 30 June 2022.
The NRC is headed by five commissioners appointed by the president and confirmed by the senate for five-year terms. The NRC requires a quorum of at least three commissioners, and no more than three may be from the same political party.
The American Nuclear Society said Ms Svinicki’s early departure from the commission will allow the incoming Biden administration to appoint a new commissioner, which will probably change the composition to three Democrats and two Republican commissioners.