17In this connection, it must be recalled that, although, by virtue of the very nature of regulations and of their function in the system of sources of EU law, the provisions of regulations generally have immediate effect in the national legal systems, without the need for the national authorities to adopt implementing measures, some of their provisions may nevertheless require, for their application, the adoption of implementing measures by the Member States (judgments of 25 October 2012, Ketelä, C‑592/11, EU:C:2012:673, paragraph 35; of 15 May 2014, Szatmári Malom, C‑135/13, EU:C:2014:327, paragraph 54, and of 7 July 2016, Občina Gorje, C‑111/15, EU:C:2016:532, paragraph 34).
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