66As regards the principle of proportionality, it requires that the duplication of proceedings and penalties provided for by the national legislation does not exceed what is appropriate and necessary in order to attain the objectives legitimately pursued by that legislation, it being understood that, when there is a choice between several appropriate measures, recourse must be had to the least onerous and the disadvantages caused must not be disproportionate to the aims pursued (judgment of 22 March 2022, bpost, C‑117/20, EU:C:2022:202, paragraph 48).
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