The EU Taxonomy, is the first global effort to address environmental sustainability and to provide a robust framework for classifying economic activities based on their environmental impact. However, the application of an activity-based green taxonomy for categorising infrastructure companies as sustainable or not presents its own set of challenges. The first challenge involves identifying the activities of a given company and subsequently mapping them to determine which are eligible to be screened for alignment against the taxonomy. The second challenge entails a rigorous assessment of the actual impact of these activities, measuring them to ascertain if they fall within the thresholds deemed sustainable by the taxonomy and outlining a road map to alignment if they don’t.

This paper addresses one of the most significant problems in this context: mapping the infrastructure asset class to the activities of the EU Taxonomy. This mapping process not only tackles a crucial hurdle but also contributes to a deeper understanding of how green taxonomies can be effectively applied to the infrastructure asset class. Additionally, the paper puts forth key recommendations aimed at improving the practical application of such green taxonomies within the infrastructure asset class, thereby bridging the gap between theoretical frameworks and real-world implementation.