Council Decision (EU) 2020/2072 of 7 December 2020 on the position to be taken on behalf of the European Union within the Stabilisation and Association Council established by the Stabilisation and Association Agreement between the European Communities and their Member States, of the one part, and the Republic of Serbia, of the other part, as regards the amendment of that Agreement by replacing Protocol 3 thereto concerning the definition of the concept of ‘originating products’ and methods of administrative cooperation