In recent years, significant improvements in the assessment methodologies have been made in an effort mostly co-ordinated by the UNEP/ SETAC initiative (de Haes, 2002, UNEP, 2003, Jolliet et al., The EU Joint Research Centre has also made an important input in the determination of effective practice in impact assessment, which has resulted in the adoption of 14 default impact categories for the EU footprinting initiative (Product Environmental Footprint (PEF)/ Organisational Environmental Footprint (OEF), European Commission, 2013a, European Commission, 2013b).