How To: Start your first NDIS plan Bysuperadmin 31/08/202531/08/2025 Our Participant Service Guarantee provides us with clear direction to improve your experience with the NDIS. The legislated Participant Service Guarantee provides timeframes for key NDIS processes. For more information about service standards and timeframes, go to https://www.ndis.gov.au/about-us/policies/service-charter/participant-service