153In the third place, as regards the conformity of the derogation set out in Article 7(4a) of Directive 91/477, as amended by the contested directive, with the principle of the protection of legitimate expectations, it must be recalled that the right to rely on the principle of the protection of legitimate expectations extends, as a corollary of the principle of legal certainty recalled in paragraph 148 of the present judgment, to any individual in a situation where European Union authorities have caused him to entertain legitimate expectations. In whatever form it is given, information which is precise, unconditional and consistent and comes from authorised and reliable sources constitutes assurances capable of giving rise to such expectations. However, a person may not plead breach of the principle unless he or she has been given precise assurances by the administration. Similarly, if a prudent and alert economic operator can foresee that the adoption of an EU measure is likely to affect his or her interests, he or she cannot plead that principle if the measure is adopted (judgment of 30 April 2019, Italy v Council (Mediterranean swordfish fishing quota), C‑611/17, EU:C:2019:332, paragraph 112 and the case-law cited).
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