On September 29, 2010, Yellen confirmed by the Senate on a voice vote, to be both a Member of the Board of Governors, and Vice Chair of the Federal Reserve System. On October 4, 2010, Yellen was sworn in as vice chair for a four-year term that ended on October 4, 2014. Simultaneously she began a 14-year term as a member of the Federal Reserve Board filling a vacant seat last held by Mark W. Olson. Yellen was the second woman to hold the No.2 post at the Fed, after Alice Rivlin, who had that role from 1996 to 1999.