For these people, organ or tissue transplantation may mean a second chance at life, or an improved quality of life.
There are approximately 1,500 people in Australia on organ transplant waiting lists at any given time. Some of them will die waiting.
In 2015, there were 435 organ donors in Australia, which represents was the highest since national records began.
It is designed to allow people to ensure their consent (or objection) to donating organs and/or tissue for transplantation can be verified by authorised medical personnel anywhere in Australia 24 hours a day, seven days a week.
Family consent is always needed before donation can go ahead, so remember to discuss your decision with your family and those close to you.
When you fill in the form to get on the Donor Register, you may limit your donation to only certain organs or tissue if you wish.