EU regulations do not have a retroactive effect, but the measures they repeal do

Do EU rules have a retroactive effect? There is no clear answer to this question. It has been the subject of a number of rulings by the Court of Justice of the EU in relation to specific acts and situations. This article reviews one of the recent CJEU's judgments on this issue. It concerns the retroactive application of anti-dumping duties when they have already been repealed.