This study investigates the inclusion of environmental performance in transport contracts, and studies if differencesin inclusion can be explained by intra-organizational involvement. Findings from a survey study targeting logisticsservice providers and shippers suggest that those who include environmental performance in contracts, not necessarilyconsider how to measure the environmental performance and how to handle non-compliance. A higher degree ofintra-organizational involvement is related to larger inclusion of environmental performance in contracts. Findingsalso indicate that transportation managers play a more important role for inclusion of environmental performance incontracts, as compared to top management and environmental managers.