Editorial; Public Health Emergency: National, European and International Law Responses; Anniversary: Commemorating the 90th Birthday of Ferenc Mádl, President of the Republic (2000-2005); Developments in European Law; Developments in International Law; Hungarian State Practice; Case Notes; Conference Reports; Review of Hungarian Scholarly LiteratureArticles written mainly by Hungarian authors, covering developments in the field of international law and EU law, and progress in the domestic implementation and application of these fields of law.The Hungarian Yearbook of International Law and European Law comprises a collection of articles written mainly by Hungarian authors, covering developments in the field of international law and EU law, and progress in the domestic implementation and application of these fields of law. The thematic chapter of Vol. 9 (2021), entitled ‘Public Health Emergency: National, European and International Law Responses’, tackles different legal aspects related to dealing with the consequences of COVID-19, while the Anniversary section is dedicated to the commemoration of the 90th birthday of Ferenc Mádl, professor of private international law and President of the Republic (2000-2005). The Yearbook also contains numerous articles on new developments in European law and international law, Hungarian state practice, case notes and book reviews. The Yearbook offers a comprehensive picture of the state of application and implementation of international law and EU law in Hungary