Despite the increasing amount of trade between China and the US, and the increase in foreign direct investment from the US into China, there is no government body that collects information detailing the incidence of production shifts out of the US to China or any other country. In the fall of 2000, the predecessor to the US-China Economic and Security Review Commission (USCC) commissioned Cornell and the University of Massachusetts Amherst to study the extent and nature of production shifts out of the US and into China from October 2000 through April 2001. In order to conduct this research we developed a methodology that involves a combination of online media tracking and corporate research and the creation of a database including information on all production shifts announced or confirmed in the media during that period. In July 2004 the USCC asked us to update that research, starting with an initial period of January 1 through March 31, 2004.