NASA has awarded a two-year, US$650 million contract extension to The Boeing Co. to continue engineering support of the International Space Station. The contract runs through September 30, 2010. The action extends the U.S. On-Orbit Segment Acceptance and Vehicle Sustaining Engineering contract, initially awarded in January 1995. Work under the contract extension will include completion of delivery and on-orbit acceptance of the U.S. segment of the station, sustaining engineering of station hardware and software, support of U.S. hardware and software provided to international partners and participants in the station program, and end-to-end subsystem management for the majority of station systems. The work will be performed at NASA's Johnson Space Center in Houston, Kennedy Space Center in Florida, Marshall Space Flight Center in Huntsville, Alabama, and at other domestic and international locations.