The Census 2001 Quality report for England and Wales provides information about all aspects of quality relating to the 2001 Census. It provides an overview of the quality issues and the studies and analyses that have been carried out to improve the quality of Census data. The report deals with the life cycle of the Census project stage by stage, and then provides measures of each of the attributes of quality as defined by the European Statistical System. The final part describes the components of quality of the data for each Census question. In conjunction with the Census 2001 General report for England and Wales, it provides a comprehensive evaluation of the strengths and weaknesses of the Census operation.