Geographic files and documentation: 92-156-X
Three correspondence files are available:
The Dissemination Area correspondence file is a tabular product that describes the relationship between the current census Dissemination Area and the previous census Dissemination Area;
The Dissemination Area and Land Area correspondence file describes the percentage of the current census Dissemination Area's land area within the boundaries extent of the previous census Dissemination Area;
The Dissemination Block correspondence file describes the relationship between the current census Dissemination Block and the previous census Dissemination Block.
Each file contains a unique identifier for the current census geographic area and the corresponding unique identifier for the previous census geographic area. In addition, a relationship flag is included which indicates the degree of correspondence between the geographic areas, facilitating the comparison between census years.