Article 5.2.3bis.1.5. The operator establishes the mass of each waste category per load, and if possible the category in accordance with the waste materials list specified in appendix 2.1 of the order of the Government of Flanders of 17 February 2012 adopting the Flemish regulations on the sustainable management of material cycles and waste materials before the waste is received by the incineration or co-incineration installation.