On July 12, 2019, the European Food Safety Authority (EFSA) published in the EFSA Journal its “Scientific opinion on the proposed amendment of the EU specifications for titanium dioxide (E 171) with respect to the inclusion of additional parameters related to its particle size distribution.”  The opinion addresses the assessment of data provided by interested business operators in support of an amendment of the European Union (EU) specifications for titanium dioxide (E 171) with respect to the inclusion of additional parameters related to its particle size distribution.