2.1. Statistical units are units about which statistics are tabulated, compiled or published. Each statistical unit is classified according to the unit's characteristics of analytical interest. Statistics can then be presented for groups of units with common characteristics (e.g. all lone person households, all businesses in a certain industry, etc.).
2.2. Units should be defined in a consistent way so that users of ABS economic statistics can make valid comparisons of information compiled form different statistical sources.
2.3. To ensure consistent definition and classification of statistical units in its economic censuses and sample surveys, the ABS maintains a list of the statistical units that can be selected in ABS censuses and sample surveys, or that can be matched to units from other sources used to compile economic statistics. This list is called the ABS Business Register. Each unit is recorded only once in the business register so that the classifications attributed to the unit will be the same in all ABS economic statistics in which the unit is included.