32Secondly, to require danger prevention to have a collective dimension would prevent that concept having any independent content, since it would be systematically confused with either civil protection or civil defence. Where a provision of EU law is open to several interpretations, preference must be given to that interpretation which ensures that the provision retains its effectiveness (judgment of 24 February 2000, Commission v France, C‑434/97, EU:C:2000:98, paragraph 21).
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