This report examines the quality of the data available for undertaking statistical data linkage between the programs and describes the protocols followed to ensure that the privacy of individuals is not compromised. Practices that allow consistent linkage procedures to be used over time and across data sets are also outlined. A second report, Transitions Between Aged Care Services (AIHW: Karmel 2005), examines the validity of the links established via SLK-581 and analyses the resulting linked data.