There is a slight difference between the ASGS definition of some non-spatial records and the non-spatial records used for the distribution of 2011 Census data. The difference in name is minor and only affects these non-spatial records.
In the ASGS there is an SA3 and SA4 for each State/Territory labelled 'Special Purpose Codes'; these records are found in all .csv files and digital boundary files (apart from Greater Capital Cities and State). These records are labelled as 'No usual address' in the Census.
The 'No usual address' SA3/SA4 is only used for the output of Census data and does not relate to any of the spatial records in the ASGS.
The differences are outlined as follows:
Differences in non-spatial record names (codes remain the same)
|Non-spatial record code ||ASGS - Non-spatial record name||Census - Non-spatial record name|
|SA3 code *9999 (where * = State/Territory code)||Special Purpose Codes SA3||No usual address (STE) (where STE = State/Territory)|
|SA4 code *99 (where * = State /Territory code)||Special Purpose Codes SA4||No usual address (STE) (where STE = State/Territory)|