REPORT FROM THE COMMISSION TO THE EUROPEAN PARLIAMENT AND THE COUNCIL on the implementation in 2019-2020 of Regulation (EC) No 561/2006 on the harmonisation of certain social legislation relating to road transport and of Directive 2002/15/EC on the organisation of the working time of persons performing mobile road transport activities (31st report from the Commission on the implementation of the social legislation relating to road transport), and on controls preformed under Council Directive 96/53/EC laying down for heavy-duty vehicles the maximum authorized dimensions and the maximum authorized weights