From organic food and green electricity to emission-free vehicles: the ‘Sustainable Procurement’ action plan regulates how and to what quality the public sector makes purchases. Sustainable procurement is the procurement of environmentally friendly products and services that follow the principles of economy, efficiency and expediency and whose production or provision complies with social standards. It also covers other guiding principles of sustainability, such as regionality and innovation, and the strengthening of regional economic cycles, whereby EU legal requirements must be complied with. In the best case scenario, sustainable public procurement is linked to improvements in all three dimensions (environmental, social and economic). If this is not possible, the minimum requirement is that there are positive effects in one dimension and no deterioration in the other two.