TRB’s Electronic Circular 71: Data for Understanding Our Nation’s Travel: National Household Travel Survey Conference summarizes a conference held on November 1-2, 2004, in Washington, D.C. The conference was designed to bring together a diverse set of data users who understand the data’s usefulness in order to provide feedback to inform the design of future national travel behavior surveys. The report includes a collection of session summaries written by the session chairs and general speakers. Papers and presentation summaries can be found on the conference website.