This chapter gives an outline of the Parlamentarische Beirat für nachhaltige Entwicklung (Parliamentary Advisory Council on Sustainable Development, PACSD) of the German ‘Bundestag’ (Federal Parliament). Before exploring the creation, functions, and effectiveness of this institution, fairly unknown even in Germany itself, it sketches the development of ecological consciousness and environmental law in Germany as well as the constitutional context. This leads to an analysis of the strengths and the weaknesses of the Parliamentary Advisory Council. The chapter ends with a short legislative outlook and forecast. For the sake of clarity, it should be mentioned at the outset that since Germany is a highly industrial country with a long history of environmental problems the German perspective on sustainability stresses the ecological, rather than the economic or social, dimensions which in turn is mirrored in the work of the PACSD.