49Under the third paragraph of Article 288 TFEU, the Member States are required, when transposing a directive, to ensure that it is fully effective, but they retain a broad discretion as to the choice of ways and means of ensuring that it is implemented. That freedom of choice does not affect the obligation imposed on all Member States to which the directive is addressed to adopt all the measures necessary to ensure that the directive concerned is fully effective in accordance with the objective which it seeks to attain (judgments of 6 October 2010, Base and Others, C‑389/08, EU:C:2010:584, paragraphs 24 and 25, and of 22 February 2018, Porras Guisado, C‑103/16, EU:C:2018:99, paragraph 57).
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