The NIA is one of the Accredited Stakeholder Organizations (ASOs) participating in the ECHA Nanomaterials Expert Group (NMEG). The 15th meeting of the Group took place in May 2022, with the NIA notes now available as a member-only document (not for sharing). The Annex to the notes provides a more detailed overview of the advanced materials presentation delivered during the meeting, and is also not for sharing.