42In the second place, it should be recalled that, in accordance with settled case-law, Directive 98/34 is designed to protect, by means of preventive monitoring, 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, to that effect, judgments of 30 April 1996, CIA Security International, C‑194/94, EU:C:1996:172, paragraph 40, and of 19 July 2012, Fortuna and Others, C‑213/11, C‑214/11 and C‑217/11, EU:C:2012:495, paragraph 26 and the case-law cited).
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