Through FONA and other stakeholders efforts, the Nairobi Arboretum Management Board (NAMB) was established to manage the Arboretum in 1997. The Board has representation from National Museums of Kenya, Kenya Wildlife Service, Kenya Forestry and Research Institute, Private Sector and Donor representatives. It was instrumental in developing of an Arboretum Masterplan, as an overall development strategy to guide in its operations.
The Masterplan was launched in January 2000 by Permanent Secretary in the Ministry of Environment and Natural Resources. It aims to develop the Arboretum into a modern facility promoting environmental education, recreation and scientific knowledge.
The Masterplan has developed a broad view of the future role and functions of the Arboretum, in wider context of relevant Kenyan policies as well as international conventions. These include the Kenya Forestry Masterplan, New Forest Bill (to be debated in parliament before the end the year) National Environmental Action Plan etc. The Board by Chairman appointed by Chief Conservator of Forests has met severally this year to plan the way forward in the implementation of the Masterplan and work out on the legality of the Board.