The European Union (EU) Observatory for Nanomaterials (EUON) posted a Nanopinion on June 12, 2020, entitled “Pigments:  The oldest nanomaterials in human history facing modern day challenges.”  Dr. Heike Liewald, Managing Director, Eurocolour e.V., and Giuliana Beck, Advisor, German association of producers of pigments and fillers, describe how the introduction of nano-specific requirements