On the 8th of November NIA Director of Regulatory Affairs attended the 20th meeting of the Nanomaterials Expert Group (NMEG) remotely, where technical issues relating to the implementation of REACH, CLP, and the Biocidal Products Regulation (BPR) for nanomaterials are discussed. As a permanent stakeholder representative, NIA took the opportunity to raise questions and issues brought forward by its members. Further information on the event is available to members through dedicated reports and direct consultation to NIA Director of Regulatory Affairs.