CELEX:62021CJ0404: Judgment of the Court (Fifth Chamber) of 22 December 2022.#WP v Istituto nazionale della previdenza sociale and Repubblica italiana.#Reference for a preliminary ruling – European Central Bank (ECB) staff members – Transfer of pension rights acquired in a national pension scheme to the ECB pension scheme – Article 4(3) TEU – Principle of sincere cooperation – ECB Conditions of Employment – Article 8 of Annex IIIa – No provision of national law or agreement between the Member State concerned and the ECB.#Case C-404/21.