(March 2001) In the 1990 Census, half a million people disobeyed instructions to mark only one race. The 2000 Census allowed multiple racial responses. This report addresses some of the main issues that data users will face in using, interpreting, and presenting the new racial data. This KIDS COUNT/PRB Reports on Census 2000 paper is part of a series of reports on the 2000 Census prepared for the nationwide network of KIDS COUNT projects. These reports have been guided by the recommendations of an expert advisory group of data users and child advocates, brought together in a series of meetings by the Annie E. Casey Foundation and the Population Reference Bureau.