Extranet is a private part of the VRN website on which collection points can log in and where they can order to have a container placed or to change their full container for a new one. VRN created the CO2 certification. Collection points can also download on Extranet a certificate with the collected tonnage during a certain period on which is indicate how much CO2 reduction they achieved by doing this. With this a company can show that they support the CO2 reduction with their sheet glass waste management .