Guard Industrie has just taken part in the Défi 3D program created by the Seine‐Saint‐ Denis chamber of commerce in partnership with the ADEME (Environment and Control of Energy Agency, the DRIRE (Regional Direction of Industry, Research and Environment), the Seine‐Saint‐Denis council, the Ile de France Region, Paris airports, French railways company, Orange and La Poste. Défi 3D helps small businesses identify their own issues regarding sustainable development and put in place an appropriate action plan thanks to the help of experts.