As for the development project, the three prefectures took over the works in the local level and Hokkaido Works Administration Bureau which was under Ministry of Agriculture and Commerce took over the works in the national level.
開拓事業については、これらの3県と農商務省(日本)管轄の北海道事業管理局とで地方レベル・国レベルを各々分担する形で引き継がれることになった。