DIN 18920

Machine-translated from the German article

DIN 18920 describes the protection of individual trees and vegetation areas to be preserved (trees, shrubs, grasses, herbs). Protection of these plants is granted because the ecological, climatic, aesthetic, protective or other value of existing plants/plantings is, as a rule, not or only after years attainable through replacement. In Germany, the standard applies to the planning and execution of work of any kind through which a structure is built, maintained, altered or removed.