The ETA allows the holder to visit Australia for unlimited times, up to 3 months per visit, in a 12-month period for tourism or business purposes. There is no visa application charge but a service charge of AU$20 applies for applications lodged online. At the time of travel to, and entry into, Australia, all holders of an ETA must be free from tuberculosis and must not have any criminal convictions for which the sentence or sentences (whether served or not) total 12 months or more.