Licence, IDP and translation
Austroads says visitors without a permanent visa can drive on a valid overseas licence, carrying either an International Driving Permit or an English translation if the licence is not in English. Time limits: 3 months in the Northern Territory, 6 months in NSW and Victoria, and no limit for other states while the licence stays current. In NSW the six months applies to temporary visitors; other visitors get three. A licence written in English needs no IDP under this rule. Translations differ by state: WA wants one certified by your consulate, and the NT says a translation without an IDP must be done by an authorised translator in the NT.
