35It is settled case-law that national measures liable to hinder the exercise of fundamental freedoms guaranteed by the FEU Treaty or make it less attractive may be allowed only if they pursue an objective in the public interest, are appropriate for ensuring the attainment of that objective and do not go beyond what is necessary to attain that objective (judgment of 20 December 2017, Simma Federspiel, C‑419/16, EU:C:2017:997, paragraph 38 and the case-law cited).
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