Anyone handling or supplying hazardous chemicals will already be familiar with the Safety Data Sheet (SDS). However, from 1 June 2015, EU importers and suppliers of substances and mixtures must update their SDS to comply with the new format in Annex II to Regulation 453/2010. On the same date, when the Dangerous Substances and Preparations Directives are repealed, the obligation to classify, package and label mixtures to CLP begins.This event is designed for those responsible for writing SDS. It will be of particular interest to importers, formulators and suppliers of mixtures, but also has relevance to those supplying substances.