In May 2015 the Joint Research Centre (JRC) of the European Commission and Koen Overmars Consultancy published a report on ILUC (indirect land use change) effects of biofuel cropping: Estimates of indirect land use change from biofuels based on historical data. This report is an further expansion of the work presented in Overmars et al. 2011, which presents ILUC factors based on historical data on expansion of agricultural land and yield increase. The new report presents ILUC factors for individual feedstock including both 1st and 2nd generation biofuels and narrows the uncertainty ranges of the ILUC factors relative to those presented in Overmars et al. 2011.