Order of the Court (Sixth Chamber) of 18 May 2022.#UC v Ministero dell'istruzione.#Reference for a preliminary ruling – Article 99 of the Rules of Procedure of the Court of Justice – Social policy – Directive 1999/70/EC – Framework agreement on fixed-term work concluded by ETUC, UNICE and CEEP – Clause 4(1) – Principle of non-discrimination – Concept of ‘employment conditions’ – Allowance to support the in-service training of teachers and to enhance their professional skills.#Case C-450/21.