The Boeing Company, Seal Beach, California, is being awarded a $16 million contract modification to the existing Boeing IIF sustainment contract for the Global Positioning System. This contract will provide fiscal 2011 funding for four sustainment contract line item numbers, to include contractor software maintenance, contract hardware maintenance, sustainment, and sustainment engineering. It will also provide fiscal 2011 funding to support proposal preparation. Boeing will provide personnel and infrastructure, including supplies and services, to specifically perform software maintenance, hardware maintenance, sustainment engineering support and proposal preparation. Space and Missile Systems Center, Los Angeles Air Force Base, California, is the contracting activity.