89In reviewing the legality of acts under Article 263 TFEU, the Court of Justice and the General Court have jurisdiction in actions brought on grounds of lack of competence, infringement of an essential procedural requirement, infringement of the Treaty on the Functioning of the European Union or of any rule of law relating to its application, or of misuse of powers. Article 264 TFEU provides that, if the action is well founded, the act concerned must be declared void. The Court of Justice and the General Court cannot, therefore, under any circumstances substitute their own reasoning for that of the author of the contested act (see Case C-164/98 P DIR International Film and Others v Commission [2000] ECR I-447, paragraph 38, and Case C-487/06 P British Aggregates v Commission [2008] ECR I-10515, paragraph 141).
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