Substitution for hazardous chemicals on an international level--the approach of the European project "SUBSPORT".

The systematic description and promotion of substitution options and processes is an underdeveloped and often missing element in chemical management and chemical policy discussions. This article describes major barriers and drivers for substitution, and concludes that more specific information can be an essential instrument to overcome those barriers. It also explains the development and features of a large information tool under development called SUBSPORT, an abbreviation for Substitution Support Portal.