Judgment of the Court (Fifth Chamber) of 6 October 2021.#Confederación Nacional de Centros Especiales de Empleo (Conacee) v Diputación Foral de Guipúzcoa and Federación Empresarial Española de Asociaciones de Centros Especiales de Empleo (Feacem).#Request for a preliminary ruling from the Tribunal Superior de Justicia del País Vasco.#Reference for a preliminary ruling – Public procurement – Directive 2014/24/EU – Article 20 – Reserved contracts – National legislation reserving the right to participate in certain public procurement procedures to Social initiative special employment centres – Additional conditions not provided for by the directive – Principles of equal treatment and proportionality.#Case C-598/19.