The document discusses sustainability controlling in public transport companies. It notes that while public transport inherently promotes sustainability goals, not all public transport companies see sustainability as a strategic priority. It then outlines some starting points for integrating sustainability into controlling practices, including factoring sustainability impacts into investment decisions, implementing carbon accounting, integrating environmental, economic and social dimensions into reporting, and managing sustainability objectives within the overall management system. The article aims to provide ideas for public transport companies looking to strengthen their sustainability controlling.