This information paper describes data available in the 2005-06 Public housing (PH) and state owned and managed Indigenous housing (SOMIH) National Minimum Data Set (NMDS). This data was obtained from the annual CSHA PH and SOMIH data collections and is stored at the AIHW in the National Housing Assistance Data Repository. The publication sets out the technical specifications and major conventions for the handling of data. It also attempts to ensure users of the NMDS will interpret and analyse data items consistently with the National Housing Assistance Data Dictionary version 3.