In this letter, Europe's hauliers association (IRU), European logistics and forwarding associations (CLECAT, European Transport Board, Nordic Logistics Association), EU vehicle leasing and rental organisation (Leaseurope), European Express Association, Green Freight Europe and T&E urge the European Commission to propose a truck and bus CO2 test (known as VECTO) that is transparent, cost-effective and easy to use for third parties, with simulated results than can be verified through a form of testing for real-world compliance. The signatories of the letter also call on the Commission to propose a test that enables small road transport companies (85% of the fleet) to independently consult and compare different vehicle combinations, CO2, fuel consumption and energy use, where possible online. The new test must “remove market barriers by increasing market transparency and vehicle comparability thus stimulating competition among manufacturers and end-user awareness” as the Commission set out to do in its May 2014 truck CO2 strategy.This page also includes a downloadable discussion paper on confidential input date for VECTO.The Commission has developed a test procedure called VECTO to measure CO2 emissions from new trucks and buses. The VECTO test procedure is a simulation tool that aims to provide truck and buses buyers with accurate fuel consumption information. The details of the test procedure are currently being discussed in a DG GROWTH expert committee and the final legislative proposal is expected in mid-2016.