Judgment of the Court (First Chamber) of 16 June 2022.#Proceedings brought by A.#Request for a preliminary ruling from the Korkein hallinto-oikeus.#Reference for a preliminary ruling – Recognition of professional qualifications – Directive 2005/36/EC – Article 2 – Scope – Article 13(2) – Regulated professions – Conditions for pursuing the profession of psychotherapist in a Member State on the basis of a diploma in psychotherapy issued by a university established in another Member State – Articles 45 and 49 TFEU – Freedom of movement and freedom of establishment – Assessment of the equivalence of the relevant training – Article 4(3) TEU – Principle of sincere cooperation between Member States – Conditions on the basis of which the host Member State may challenge the level of knowledge and qualifications attested to by a diploma issued in another Member State.#Case C-577/20.