The first TRGS 900 (Technical Rules for Hazardous Substances, in German) with occupational exposure limit values (OELs) for the new Hazardous Substances Ordinance (GefStoffV) of December 2004 was published in January 2006. It is usually updated twice a year.
The latest updates of March 2019 (PDF, 73 kB) of is available for downloading (in German).
The "Gefahrstoffliste" (List of hazardous substances, in German) contains all OELs of TRGS 900 as well as the binding EC OELs.
Latest updates of TRGS 900 "Arbeitsplatzgrenzwerte (Occupational exposure limit values)" (in German):
Staff function Hazardous substancesTel: +49 30 13001-3010