This report explains the design of an information tool, created to help shippers inform themselves on the emission reducing actions available to reduce road freight transport emissions. Different emission reducing actions for road freight transport are researched and compared based on emission reducing potential and cost. These different solutions, together with a calculation method to determine emissions per trip form the basis for an informational tool for shippers. As shippers buy road freight transport from logistic service providers, third-party logistics or directly from the carrier, they do not have a direct influence on the amount of emissions emitted during transport. However, by making use of collaboration, shippers can influence emission reduction by working together on implementing emission reducing solutions and influencing the corresponding decrease or increase in the price of transport.