Te Rūnanga O Toa Rangatira Incorporated (the Rūnanga) is a non-profit incorporated society with charitable status. The Rūnanga is the mandated iwi authority for Ngāti Toa Rangatira and is the administrative body of iwi estates and assets. The Rūnanga deals with the political and public issues of national interest such as Treaty of Waitangi claims, commercial and customary fisheries, health services including primary mental health and residential care services, local government relationships and resource and environmental management.