From April 2009 to October 2011, Carter was Under Secretary of Defense for Acquisition, Technology, and Logistics, with responsibility for DOD's procurement reform and innovation agenda and completion of procurements such as the KC-46 tanker. He also led the development and production of thousands of mine-resistant ambush protected (MRAP) vehicles, and other acquisitions. He instituted "Better Buying Power," seeking smarter and leaner purchasing. From October 2011 to December 2013, Carter was Deputy Secretary of Defense, serving as the DOD's chief operating officer, overseeing the department's annual budget and its three million civilian and military personnel, steering strategy and budget through sequester, and directing the reform of DOD's national security export controls. He was confirmed by Senate voice vote for both positions.