This report discusses the implementation and authority of the National Disability Insurance Scheme (NDIS) in Australia, including a comparison of its implementation in different states. It also covers the role of the federal government in setting up the national insurance scheme. The report provides an overview of Australia's medical system and how Medicare and the public hospital system provide free or low-cost access to medical services. The report concludes with information on the NDIS Participant Service Guarantee and the National Disability Insurance Agency (NDIA).