27Those cumulative requirements concerning the content of a request for a preliminary ruling are expressly set out in Article 94 of the Rules of Procedure, which the referring court is bound to observe scrupulously (order of 3 July 2014, Talasca, C‑19/14, EU:C:2014:2049, paragraph 21, and judgment of 9 September 2021, Toplofikatsia Sofia and Others, C‑208/20 and C‑256/20, EU:C:2021:719, paragraph 20 and the case-law cited). They are also recalled in paragraphs 13, 15 and 16 of the Recommendations of the Court of Justice of the European Union to national courts and tribunals in relation to the initiation of preliminary ruling proceedings (OJ 2019 C 380, p. 1).
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