Order of the Court (Sixth Chamber) of 16 March 2021.#Criminal proceedings against DS.#Reference for a preliminary ruling – Article 53(2) of the Rules of Procedure of the Court of Justice – National legislation reserving the activity of a farriery solely to those with a diploma in farriery – Compatibility with Articles 101 to 106 TFEU – Insufficient information on the factual and legislative context of the main proceedings and on the reasons why the answer to the question referred for a preliminary ruling is necessary – Manifest inadmissibility.#Case C-557/20.