ISO 3166-2:AU is the entry for AustraliainISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Currently for Australia, ISO 3166-2 codes are defined for 6 states and 2 territories. Lesser territories that are under the administration of the commonwealth government, such as the Jervis Bay Territory, the Ashmore and Cartier Islands, and the Coral Sea Islands, are not listed.
Each code consists of two parts, separated by a hyphen. The first part is AU, the ISO 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 of Christmas Island, the Cocos (Keeling) Islands and Norfolk Island have their own ISO 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, the Ashmore and Cartier Islands and the Coral Sea Islands are covered by Australia, and the Australian Antarctic Territory is covered by Antarctica, with alpha-2 code AQ.
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ISO 3166 – Codes for the representation of names of countries and their subdivisions
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| ISO 3166-1 country codes |
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| ISO 3166-2 country subdivision codes |
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| ISO 3166-3 codes for former names of countries |
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