20. rappelle que, conformément à l'article 21 de la directive, ses dispositions devaient être transposées en droit national au 20 mai 2006 et observe que, si l'on en croit l'étude externe, la plupart des États membres ont transposé la directive entre 2006 et 2007 ;
20. Recalls that, according to Article 21 of the Directive, its provisions were to be transposed into national law by 20 May 2006, and notes that, according to the External Study, most of the Member States transposed the Directive between 2006 and 2007 ;