evidence: These changes affected most businesses that generate or handle hazardous waste and wereintended to streamline aspects of the rules while making them more protective of public health and the environment. To the extent possible, the DNR adopted equivalent content and format of the federal regulations. [...] To request an extension, go to Notification of hazardous waste activities. [...] Small and large quantity generators, licensed hazardous waste treatment, storage and disposal facilities and other waste facilities and operators must notify the DNR of their hazardous waste activity and obtain an EPA Identification number.