(j) For purposes of this subsection, special purpose commercial hazardous waste facilities include: a facility that manages limited quantities of hazardous waste; a facility that limits its hazardous waste management activities to reclamation or recycling, including energy or materials recovery or a facility that stores hazardous waste primarily for use at such facilities; or a facility that is determined to be low risk under rules adopted by the Commission pursuant to this subsection. The Commission shall adopt rules to determine whether a commercial hazardous waste facility is a special purpose commercial hazardous waste facility and to establish classifications of special purpose commercial hazardous waste facilities. The rules to determine whether a commercial hazardous waste facility is a special purpose commercial hazardous waste facility and to establish classifications of special purpose commercial hazardous waste facilities shall be based on factors including, but not limited to, the size of the facility, the type of treatment or storage being performed, the nature and volume of waste being treated or stored, the uniformity, similarity, or lack of diversity of the waste streams, the predictability of the nature of the waste streams and their treatability, whether the facility utilizes automated monitoring or safety devices that adequately perform functions that would otherwise be performed by a resident inspector, the fact that reclamation or recycling is being performed at the facility, and the compliance history of the facility and its operator. Based on the foregoing factors and any increase or decrease in the number of sensitive land uses over time or in estimated population density over time reported pursuant to G.S. 130A-295.01(f), rules adopted pursuant to this subsection shall establish times and frequencies for the presence of a resident inspector on less than a full-time basis at special purpose commercial hazardous waste facilities and specify a minimum number of additional inspections at special purpose hazardous waste facilities. Special purpose commercial hazardous waste facilities that utilize hazardous waste as a fuel source shall be inspected a minimum of 40 hours per week, unless compliance data for these facilities can be electronically monitored and recorded off-site by the Department. The Department, considering the benefits provided by electronic monitoring, shall determine the number of hours of on-site inspection required at these facilities. The Department shall maintain records of all inspections at special purpose commercial hazardous waste facilities. Such records shall contain sufficient detail and shall be arranged in a readily understandable format so as to facilitate determination at any time as to whether the special purpose commercial hazardous waste facility is in compliance with the requirements of this subsection and of rules adopted pursuant to this subsection. Notwithstanding any other provision of this section, special purpose commercial hazardous waste facilities shall be subject to inspection at all times during which the facility is in operation, undergoing any maintenance or repair, or undergoing any test or calibration.