DIRECTIVE (EU) 2016/797 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 11 May 2016 on the interoperability of the rail system within the European Union (recast) ANNEX I ELEMENTS OF THE UNION RAIL SYSTEM ANNEX II SUBSYSTEMS ANNEX III ESSENTIAL REQUIREMENTS ANNEX IV ‘EC’ VERIFICATION PROCEDURE FOR SUBSYSTEMS ANNEX V ANNEX VI Statement by the Commission on explanatory documents