Judgment_paragraph 67 · European Parliament v European Commission (C-286/14)

67The Court has held in this regard that, on grounds of legal certainty, the effects of such an act may be maintained, in particular where the immediate effects of its annulment would give rise to serious negative consequences for the persons concerned and where the lawfulness of the act in question is contested, not because of its aim or content, but on grounds of lack of competence or infringement of an essential procedural requirement (judgment in Parliament and Commission v Council, C‑103/12 and C‑165/12, EU:C:2014:2400, paragraph 90 and the case-law cited).