32It must also be recalled, however, that it is not necessary for a legislative act itself to provide details of a technical nature, and that it is open to the EU legislature to have recourse to a general legal framework which is, if necessary, to be made more precise at a later date (see, to that effect, judgment of 4 May 2016, Pillbox 38, C‑477/14, EU:C:2016:324, paragraphs 78 and 139).
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