Following a proceeding brought by a Belgian consumer organization to seek the annulment of a law amending the Gender Law of 2007 in so far as it allowed certain differences in insurance premiums to be paid by men and women, the Constitutional Court (drawing on a judgment of the European Court of Justice as this concerned a question of the interpretation of a provision in a European Directive) ruled that such different treatment was permitted only for policies concluded before 21 December 2012.