If you're going to Australia, it is advised that you fill out the Australian travel declaration. This is necessary for any global traveler coming to the land down under. The Australian traveling announcement is an agreement made by the government and the airlines which says that there'll be a proper documentation for each traveler regarding the necessary vaccinations, and health conditions if they opt to enter this country. This is to prevent any mishaps from getting vaccinations and also to avoid health issues. If you're traveling to Australia, it'd be best to utilize the Australian travel card to get your entry license.