The third registration phase for chemicals under the REACH Regulation is approaching and will probably affect small and medium sized companies in particular. Companies must register pre-registered substances that are manufactured or imported in a tonnage band of 1 to 100 tonnes per year at the European Chemicals Agency (ECHA) by 31 May 2018.

To support the affected companies, the REACH-CLP Biozid Helpdesk at the Federal Institute for Occupational Safety and Health (Bundesanstalt für Arbeitsschutz and Arbeitsmedizin - BAuA), together with various chambers of industry and commerce, offered a series of events entitled: "REACH 2018 - Jetzt erfolgreich registrieren!(Register Successfully Now!)". Information events took place under the heading "Helpdesk informs locally throughout Germany" in cities throughout Germany from the end of April to the beginning of November 2016 (28 April in Halle, 9 May in Hanover, 24 May in Kassel, 2 June in Bielefeld, 8 June in Frankfurt, 13 June in Leipzig, 14 June in Berlin, 28 June in Krefeld, 29 June in Ludwigshafen, 20 July in Nuremberg, 9 November in Bremen). The presentation slides are publicly available from the helpdesk's website.

At all the events, many questions were asked directly in connection with the upcoming registration. The questions were in some cases very similar, but not always the same ones, and were probably equally interesting for all those attended this series of events. For this reason, we have compiled the questions and the corresponding answers below. This compilation is based on the questions that appeared to us to be particularly interesting for the whole of the group of participants.