 Since 2008, the ACT has been governed by a coalition of Labor and the Greens.The Australian federal government retains some influence over the ACT government.In the administrative sphere, most frequently this is through the actions of the National Capital Authority which is responsible for planning and development in areas of Canberra which are considered to be of national importance or which are central to Griffin's plan for the city, such as the Parliamentary Triangle, Lake Burley Griffin, major approach and processional roads, areas where the Commonwealth retains ownership of the land or undeveloped hills and ridge-lines (which form part of the Canberra Nature Park).