Rangitikei Wanganui Catchment Board and Regional Water Board
The Rangitikei Catchment Board was formed in 1945. The Board took on the duties of Regional Water Board in 1968 due to the Water and Soil Conservation Act 1967. From the 1st April 1972 the Wanganui Catchment District came under the Boards administration for Regional Water purposes. Following this the Board altered its name to the Rangitikei Wanganui Catchment Board. In 1987 the Board amalgamated with the Manawatu Catchment Board to form the Central Districts Catchment Board. This was not legally ratified however, so the Board continued to officially exist until 1989 when it amalgamated with a number of other authorities to form the Manawatu Wanganui Regional Council.