ISO 3166-2:AU is the entry forAustralia inISO 3166-2, part of theISO 3166standard published by theInternational Organization for Standardization (ISO), which definescodes for the names of the principalsubdivisions (e.g., provinces orstates) of allcountries coded inISO 3166-1.
Currently for Australia, ISO 3166-2 codes are defined forsix states and two territories. Lesser territories that are under the administration of the commonwealth government, such as theJervis Bay Territory, theAshmore and Cartier Islands, and theCoral Sea Islands, are not listed.
Each code consists of two parts, separated by a hyphen. The first part isAU, theISO 3166-1 alpha-2 code of Australia. The second part is two or three letters, which is the conventional abbreviation of the state or territory (defined in Australian Standard AS 4212-1994).
Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).
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| Code | Subdivision name (en) | Subdivision category |
|---|---|---|
| AU-NSW |  New South Wales | state |
| AU-QLD |  Queensland | state |
| AU-SA |  South Australia | state |
| AU-TAS |  Tasmania | state |
| AU-VIC |  Victoria | state |
| AU-WA |  Western Australia | state |
| AU-ACT |  Australian Capital Territory | territory |
| AU-NT |  Northern Territory | territory |
The external territories ofChristmas Island, theCocos (Keeling) Islands andNorfolk Island have their ownISO 3166-1 codes and are not included in Australia's entry in ISO 3166-2. There are no ISO 3166-2 codes for:
The following changes to the entry have been announced in newsletters by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998. ISO stopped issuing newsletters in 2013.
| Newsletter | Date issued | Description of change in newsletter | Code/Subdivision change |
|---|---|---|---|
| Newsletter I-6 | 2004-03-08 | Change of subdivision code in accordance with Australian Standard AS 4212-1994 | Codes: New South Wales:AU-NS →AU-NSW Queensland:AU-QL →AU-QLD Tasmania:AU-TS →AU-TAS Victoria:AU-VI →AU-VIC Australian Capital Territory:AU-CT →AU-ACT |
The following changes to the entry are listed on ISO's online catalogue, the Online Browsing Platform:
| Effective date of change | Short description of change (en) |
|---|---|
| 2015-11-27 | Update List Source |
| 2016-11-15 | Update List Source; update Code Source |
Four of the external territories of Australia are officially assigned their own country codes in ISO 3166-1, with the following alpha-2 codes:
Under the definitions in ISO 3166-1, theAshmore and Cartier Islands and theCoral Sea Islands are covered by Australia, and theAustralian Antarctic Territory is covered byAntarctica, with alpha-2 codeAQ.