49It is settled case-law that Directive 98/34 is designed to protect, by means of preventive control, the free movement of goods, which is one of the foundations of the European Union, and that this control serves a useful purpose in that technical regulations falling within the scope of that directive may constitute obstacles to trade in goods between Member States, such obstacles being permissible only if they are necessary to satisfy compelling requirements relating to the public interest (see Case C-303/04 Lidl Italia [2005] ECR I-7865, paragraph 22, Case C-433/05 Sandström [2010] ECR I-2885, paragraph 42, and Case C-361/10 Intercommunale Intermosane and Fédération de l’industrie et du gaz [2011] ECR I-5079, paragraph 10).
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