Proposal for a COUNCIL DECISION on the position to be taken on behalf of the European Union at the 13th session of the Committee of Technical Experts of the Intergovernmental Organisation for International Carriage by Rail (OTIF) for the adoption of modifications to UTP rolling stock noise, UTP freight wagons, UTP vehicle marking, and for the adoption of full revision of the rules for the certification and auditing of entities in charge of maintenance (ECM) and the specifications concerning vehicle registers