National Disability Insurance Scheme (NDIS) in Australia were based on the following factors. However, keep in mind that policies and criteria can be subject to change, so it's essential to check with official NDIS sources for the most current information.

As a general guide, to be eligible for the NDIS, an individual must:

1. Have a Permanent Disability:

   • The disability should be permanent and significant, affecting the person's ability to perform everyday activities.

2. Be Under 65 Years of Age:

   • NDIS generally covers individuals who are under the age of 65. If a person is over 65 and already receiving support, they may continue to receive it under existing programs.

3. Be an Australian Citizen or Hold a Permanent Residency:

   • The person must be an Australian citizen, a permanent resident, or a Protected Special Category Visa holder.

4. Live in an NDIS-eligible Area:

   • The NDIS is progressively rolled out across different regions in Australia. The person must live in an area where the NDIS is available.

5. Need Support from a Person Because of a Permanent and Significant Disability:

   • The disability must significantly impact the person's functional capacity in one or more of the following areas:
     • Communication
     • Social interaction
     • Learning
     • Mobility
     • Self-care

6. Have an Ongoing Need for Support:

   • The individual should require support from the NDIS over an extended period, usually throughout their life.

7. Participate in the NDIS Access Process:

   • The person needs to go through an access process, which involves providing information about their disability, its impact on their life, and any existing supports they may have.

It's important to note that the eligibility process involves assessments and discussions with the individual, their family, and relevant professionals. The NDIS access process is designed to ensure that those who meet the criteria receive the appropriate support. The specific details and application process may vary, so individuals seeking to access the NDIS should contact the National Disability Insurance Agency (NDIA) or visit the official NDIS website for the latest and most accurate information.