Case C–503/03, Commission v. Spain, Judgment of the Court (Grand Chamber) of 31 January 2006, [2006] ECR I–1097 - Common Market Law Review View Case C–503/03, Commission v. Spain, Judgment of the Court (Grand Chamber) of 31 January 2006, [2006] ECR I–1097 by - Common Market Law Review Case C–503/03, Commission v. Spain, Judgment of the Court (Grand Chamber) of 31 January 2006, [2006] ECR I–1097 45 4 Common Market Law Review