The U.S. Embassy in Australia issues visas for Australians wishing to visit the USA. Please see their website for information and applications before you go.
Due to a variety of procedural factors, U.S. Consulates are unable to guarantee the issuance of a U.S. visa before a fixed travel date. You should never pay for travel arrangements before you have a visa in your possession. The U.S. Consulate General accepts no responsibility if you do so. For more information please click here.