Survey data cited in this report are from the 2007 Economic Census released in July 2010. The Commodity Flow Survey (CFS) is the primary source of national and State-level data on domestic freight shipments by American establishments in mining, manufacturing, wholesale, auxiliaries, and selected retail industries. Data are provided on the types, origins and destinations, values, weights, modes of transport, distance shipped, and ton-miles of commodities shipped. The CFS is a shipper-based survey and is conducted every 5 years as part of the Economic Census. It provides a modal picture of national freight flows and represents the only publicly available source of commodity flow data for the highway mode. Prior to 2007, the CFS was conducted in 1993, 1997, and 2002. CFS data and publications can be found at http://www.rita.dot.gov/bts/sites/rita.dot.gov.bts/files/publications/commodity_flow_survey/index.html.