In the context of REACH, substances of very high concern (SVHC) are:
- Carcinogenic, Mutagenic or toxic to Reproduction(CMR) classified in category 1 or 2
- Persistent, Bioaccumulative and Toxic (PBT) or very Persistent and very Bioaccumulative (vPvB) according to the criteria in Annex XIII of the REACH Regulation,
- identified, on a case-by-case basis, from scientific evidence as causing probable serious effects to humans or the environment of an equivalent level of concern as those above e.g. endocrine disrupters
* European Chemicals Agency published their first list of substances of very high concern (SVHC) on 28th of October 2008. After this date, the list is updated at different times.