Opinion of Advocate General Kokott delivered on 23 January 2020.

UX v Governo della Repubblica italiana.#Request for a preliminary ruling from the Giudice di pace di Bologna.#Reference for a preliminary ruling — Admissibility — Article 267 TFEU — Definition of ‘court or tribunal of a Member State’ — Criteria — Social policy — Directive 2003/88/EC — Scope — Article 7 — Paid annual leave — Directive 1999/70/EC — Framework agreement on fixed-term work concluded by ETUC, UNICE and CEEP — Clauses 2 and 3 — Concept of ‘fixed-term worker’ — Magistrates and ordinary judges — Difference in treatment — Clause 4 — Principle of non-discrimination — Concept of ‘objective grounds’.#Case C-658/18.