A permanent resident card is an identification card for a lawful permanent resident within a given country. In the United States, this card is known as a Green Card. In Australia, this card is known as a Yellow Card. Though there are different identifications throughout the world, the intent is still the same as if allows an individual to permanently live as a resident of that given country. This means that and shows proof that the holder has been granted officially the immigration benefits including permission to reside in and take employment within the United States. There can often be stipulations attached, but it ultimately protects the ability to live for an unlimited amount of time in that country.