665The duty of sincere cooperation cannot have a wider scope, in the sense of requiring the EU legislature, in all circumstances, to produce, at the request of a Member State, documents and information that are allegedly missing or to correct information available to it before being able to adopt an act. Such an interpretation could prevent the institutions from exercising their discretion and block the legislative process. While it is true that the duty of sincere cooperation includes the duty of mutual assistance, which entails, among other things, the exchange of relevant information between the institutions and the Member States during the legislative process, that obligation cannot provide a means for one of those States, in the event of disagreement as to the adequacy, relevance or accuracy of the available data, to challenge the lawfulness of the decision-making process on that ground alone (see, to that effect, judgment of 13 March 2019, Poland v Parliament and Council, C‑128/17, EU:C:2019:194, paragraphs 74 and 75).
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