"This publication describes the suite of economic sector classifications used by the Australian Bureau of Statistics (ABS) to produce Australia's official economic sector statistics.
The classifications are: Standard Institutional Sector Classification of Australia (SISCA); Public/Private Classification; Level of Government Classification; Jurisdiction Classification; Type of Legal Organisation (TOLO). They are used in the compilation and publication of the National Accounts, Government Finance and International Accounts statistics as well as other component economic indicators. The purpose of sector classification is to identify and group all economic units which share common organisational and operational characteristics. Units within the same sector may be expected to react in a sufficiently similar fashion to market, fiscal and monetary forces to make aggregation meaningful for the purpose of economic analysis. Sector classifications provide an integrated framework for the collection, analysis and dissemination of sector data for the economy."