This paper examines the differences in trade data from the United States and China in two ways. First, it compares the trade figures at the two digit level using the Harmonized System to discern any patterns in the discrepancies between the U.S. and Chinese data. The second approach to examining the differing trade data involves a review of the existing literature on the technical and non-technical sources of the trade data discrepancies, including an October 2009 joint China-U.S. report on statistical discrepancies in merchandise trade data.