Order of the Court (Sixth Chamber) of 28 May 2020.#ES v Wallonische Region.#Request for a preliminary ruling from the Gericht Erster Instanz Eupen.#Reference for a preliminary ruling – Article 99 of the Rules of Procedure of the Court of Justice – Article 49 TFEU – Freedom of establishment – Road traffic – Registration of motor vehicles – Driver resident in one Member State – Vehicle registered in another Member State – Vehicle made available to the managing partner of a commercial company established in that other Member State – Obligation permanently to have on board the vehicle evidence of the lawful use of that vehicle – Proportionality.#Case C-757/19.