These Regulations apply to waste incineration plants and waste co-incineration plants which incinerate or co-incinerate solid or liquid waste. For the purposes of these regulations, waste incineration plants and waste co-incineration plants shall include all incineration lines or co-incineration lines, waste reception, storage, on site pretreatment facilities, waste, fuel and air supply systems, boilers, facilities for the treatment of waste gases, on-site facilities for treatment or storage of