26Against that background, a condition such as at issue in the main proceedings must be regarded as compatible with EU law, despite its restrictive effects on trade, if it is shown that it is necessary and proportionate and capable of safeguarding the quality of the product at issue, guaranteeing its origin or ensuring the control of the specification of that PGI (see, to that effect, judgment of 20 May 2003, Consorzio del Prosciutto di Parma and Salumificio S. Rita, C‑108/01, EU:C:2003:296, paragraph 66).
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