Each year the Netherlands delivers a National Inventory Report (NIR) to the UNFCCC to report its national greenhouse gas emissions. CE Delft was commissioned to carry out a quality check on the transport chapter of the 2012 NIR, focusing on reproducibility of the calculations, documentation quality and use of ICT, internal documentation and version management. The UNFCCC keeps systematic records of global CO2 emissions, as agreed under the Kyoto protocol.