On June 22 and 23, 2023, international experts came together in Berlin for a two-day conference entitled How the world deals with materials at the nano scale. This conference marked the end of the German government’s NanoDialog. This internationally unique stakeholder dialog on the opportunities and risks of nanotechnologies was initiated by Prof. Dr. habil. Uwe Lahl, Head of the Department of Immission Control and Health, Plant Safety and Transport, Chemical Safety at the Federal Ministry for the Environment, and Matthias Machnig, then State Secretary at the BMU (now BMUV), and successfully continued by the Federal Ministry for the Environment for many years. The conference report has now been published in German and English on the BMUV website. You can download the reports via the links below.