We work with our partners and industry peers to have a positive impact. We use various opportunities, resources and platforms to maintain these contacts. Appendix 20.6.4 includes an explanation of the partnerships and Public-Private Partnerships (PPPs) in which we are active. One example is the initiative that Heijmans has taken together with several other larger construction companies and the Dutch Green Building Council (DGBC) to arrive at an industry standard on the interpretation and classification of CO₂ emissions.