The 2019 U.S.-European Union (EU) NanoEHS Communities of Research (COR) Workshop will take place October 15-16, 2019, at the Europole de l’Arbois in Aix en Provence, France.  The workshop is organized by the U.S. National Nanotechnology Initiative (NNI) and the European Commission (EC).  The agenda for the October 2018 Bridging NanoEHS Research Efforts Joint Workshop and the following presentations are available: