35Furthermore, it should also be recalled that, if, by virtue of the very nature of regulations and of their function in the system of sources of European Union law, the provisions of regulations generally have immediate effect in the national legal systems without its being necessary for the national authorities to adopt measures of application, however, some of their provisions may necessitate, for their implementation, the adoption of measures of application by the Member States (see, in particular, Case C-316/10 Danske Svineproducenter [2011] ECR I-13721, paragraphs 39 and 40 and the case-law cited).
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