The German Federal Ministry for the Environment is currently working on legally binding requirements concerning the use of mineral waste in construction and in soil. A first draft of an Ordinance laying down requirements on the use of mineral secondary construction material in technical buildings (ErsatzbaustoffV) amending the Federal Soil Protection Ordinance (BBodSchV) was completed on 13 November 2007. This workshop taking place in Dessau on 20-21 May 2008 was dedicated to assessing the impacts of the Ordinance and thereby complemented consultations with the Bundesländer, stakeholders and other Ministries.