COMMISSION STAFF WORKING DOCUMENT EX-POST EVALUATION of Directive 2004/52/EC of the European Parliament and of the Council of 29 April 2004 on the interoperability of electronic road toll systems in the Community and of Commission Decision 2009/750/EC of 6 October 2009 on the definition of the European Electric Toll Service and its technical elements FINAL REPORT Accompanying the document Amended proposal for a Directive of the European Parliament and of the Council on the interoperability of electronic road toll systems and facilitating cross-border exchange of information on the failure to pay road fees in the Union (recast)