This subchapter applies to owners or operators of facilities that thermally treat hazardous waste in devices other than enclosed devices using controlled flame combustion, except as s. NR 665.0001 provides otherwise. Thermal treatment in enclosed devices using controlled flame combustion is subject to the requirements of subch. O if the unit is an incinerator, and subch. H of ch. NR 666, if the unit is a boiler or an industrial furnace as defined in s. NR 660.10.
Wis. Admin. Code Department of Natural Resources NR 665.0370