61That conclusion cannot be brought into question by the Belgian Government’s argument that, in essence, the effects of those rules are negligible, on the ground that only the disclosure of a limited amount of information is requested, that the obligation to make the declaration at issue is purely declaratory and that it comes into play only as an alternative. In that regard, it should be noted that, in any event, a restriction on a fundamental freedom is, in principle, prohibited by the Treaty even if it is of limited scope or minor importance (judgments in Corsica Ferries (France), C‑49/89, EU:C:1989:649, paragraph 8, and in Strojírny Prostějov and ACO Industries Tábor, EU:C:2014:2011, paragraph 42).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.