Operational waste simplifies the registration of hazardous waste and reporting to the Swedish Environmental Protection Agency's waste register. Companies that are to dispose of hazardous waste create delivery certificates that are issued by El-Kretsen. The delivery certificate contains a QR code that you can show to the recipient, who will then receive all information about the hazardous waste. El-Kretsen reports the registration of the hazardous waste to the Swedish Environmental Protection Agency's waste register.