However, all Australian citizens are required to use an Australian passport when entering and leaving Australia. This provision is intended to prevent immigration-related delays while a traveller's status is confirmed, as an Australian citizen cannot be granted a visa to enter Australia. However, Australian citizens have never been prosecuted simply for travelling on the "wrong" passport, provided all other immigration requirements are satisfied. Australians with compelling reasons can apply for an Australian Declaratory Visa for their foreign passport, allowing them to use it for travel to and from Australia.