Sustainability and the circular economy, including the associated decision-making criteria, are already a relevant topic today and are likely to become even more important in the near future. In this context, the topic of sustainability is fraught with great uncertainty, as the details and possible implementations in this area are not clear and can hardly be outlined. For example, the declaration of the Product Carbon Footprint (PCF) will become one of many new regulatory requirements of the European Union under the Ecodesign for Sustainable Products Regulation (ESPR) and the Green Deal. Following on from this, industry in all sectors will probably be required to provide certain product information in the form of a Digital Product Passport (DPP).