Judgment of the Court (First Chamber) of 4 March 2020.#Telecom Italia SpA v Ministero dello Sviluppo Economico and Ministero dell'Economia e delle Finanze.#Request for a preliminary ruling from the Tribunale Amministrativo Regionale per il Lazio.#Reference for a preliminary ruling — Approximation of laws — Telecommunication services — Implementation of provision of an open telecommunications network — Directive 97/13/EC — Fees and charges for individual licences — Transitional arrangements establishing a charge beyond those authorised by Directive 97/13/EC — Force of res judicata attaching to a higher court judgment considered contrary to EU law.#Case C-34/19.