121In that regard, it should be noted that, in reviewing the legality of acts under Article 263 TFEU, the Court has jurisdiction in actions brought on grounds of lack of competence, infringement of an essential procedural requirement, infringement of the Treaty or of any rule of law relating to its application, or misuse of powers. Article 264 TFEU provides that, if the action is well founded, the act concerned must be declared void. The Court cannot therefore, under any circumstances, substitute its own reasoning for that of the author of the contested act (see judgment of 28 February 2013 in Portugal v Commission, C‑246/11 P, EU:C:2013:118, paragraph 85 and the case-law cited).