Among the EU Batteries Regulation’s key milestones is the introduction of concrete carbon footprint (CF) requirements for all electric vehicle batteries. Representing the first requirements of this kind globally, the rules will evolve in the coming years from mandatory declaration of the battery’s CF performance class to a maximum CF threshold that the batteries will need to meet to enter the EU market. These requirements will inevitably create new demands for CF data collection and sharing across global electric vehicle battery value chains.