The Information System for Hazardous Substances (IGS-public), an online portal of the Landesamt für Natur, Umwelt und Verbraucherschutz Nordrhein-Westfalen (LANUV), provides consumers with free information on substance characteristics and legislation on chemical and biological substances. The database with around 250,000 entries on substances contains important information on health protection and the handling of hazardous substances.