In October 2017, the presentations and report for the June 20, 2017, Second European Conference on “Standardization for Nanotechnologies and Nanomaterials:  Reliable data for an effective management of nanomaterials” were posted.  The European Committee for Standardization (CEN)/Technical Committee (TC) 352 “Nanotechnologies,” together with the CEN-European Committee for Electrotechnical Standardization (CENELEC) Management Center, the European Commission (EC), and the European Free Trade Association, organized the Conference as part of its coordinating role in the implementation of Mandate M/461, “Standardization activities on nanotechnology and nanomaterials.”  Round tables were held on nanosafety; nanoparticle aerosol measurements; quality/relevance of data in nanomaterial databases and registries; identification of nanomaterials; nanomaterial exposure and risk assessment; and the impact of research projects on standardization.  According to the Conference report, an additional conference within the M/461 framework will be held by the end of 2018.