You must have a valid U.S. passport and a e-visa to enter Australia. Most U.S. passport holders traveling to Australia for tourism or business purposes for less than 90 days can obtain an Electronic Travel Authority (ETA). The ETA is an electronic label-free visa and can be obtained at theETA website for a small service fee. Airlines and many travel agents in the United States are also able to apply for ETAs on behalf of travelers.
If you overstay your ETA or any other visa, even for short periods, you may be subject to exclusion, detention, and removal by the Australian Department of Immigration and Border Protection (DIBP).
If you are, travelling on a valid U.S. ePassport (a passport that contains an electronic chip) and are 16 years of age or older, you are eligible to use Australia’s automated border processing system, SmartGate, upon arrival in Australia. There is no additional enrollment process or fee to participate in SmartGate. Visit the SmartGate website for more information and for a list of participating airports in Australia.
Visit the Embassy of Australia website for the most current visa information.
HIV/AIDS restrictions. Some HIV/AIDS entry restrictions exist for visitors and foreigners seeking permanent residence in Australia. Depending on the type of visa you apply for, the length of your stay, and your intended activities in Australia, you may be required to undergo a medical examination before the Australian Department of Immigration and Border Protection (DIBP) will issue you a visa.
If during the course of the application process, you are found to be HIV positive, a decision on the application will be considered on the same grounds as any other pre-existing medical condition (such as tuberculosis or cancer), with the main focus being placed on the cost of the condition to Australia’s health care and community services.
Additional information about Australian immigration health requirements can be found here. Please verify this information with the Embassy of Australia before you travel.