41It should be noted that the requirement of prior approval attesting to a product's fitness for a given use, like refusal, in that context, to recognise the equivalence of certificates issued by another Member State, restrict access to the market of the importing Member State and must therefore be regarded as a measure having an effect equivalent to a quantitative restriction on imports within the meaning of Article 28 EC (see, to that effect, Case C-14/02 ATRAL [2003] ECR I-4431, paragraphs 62 and 63).
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