In May 2016, the French agency ANSES presented to the European Chemicals Agency (ECHA) a proposal to classify titanium dioxide as a carcinogen, category 1B, by inhalation. The competent EU Committee for Risk Assessment (RAC) recognised the problem concerning the inhalation of fine dusts but did not consider the available data to be sufficient, as lung overload studies in rats cannot be transferred to humans. Therefore, the RAC recommended in September 2017 a classification as a suspected carcinogen, category 2. This triggered in November 2017 the regulatory deliberations at EU level. In the subsequent meetings of the REACH Committee of ...