Some Exempt Wastes

Some businesses may generate wastes that are exempt or conditionally exempt from regulation as hazardous waste. Please review the following list of materials and refer to the specific code citations to determine if your waste is eligible for an exemption from the hazardous waste rules, or reduced regulation.

Exempt or Conditionally Exempt

Empty containers that previously held non-acute hazardous waste. See s. NR 661.07 [PDF exit DNR], Wis. Adm. Code.
Wastes that are discharged directly to a publicly owned treatment works (POTW) without being stored or accumulated first. The POTW must be notified of this discharge and the requirements of the POTW must be complied with. Wastes which are trucked to a POTW are not excluded. See s. NR 661.04(1) [PDF exit DNR], Wis. Adm. Code.
Non-terne-plated used oil filters that have been gravity hot-drained. See s. NR 661.04(2)(m) [PDF exit DNR], Wis. Adm. Code.

Reduced Regulations

Scrap metal that is legitimately recycled or reclaimed. See s. NR 661.06(1)(c)2. [PDF exit DNR], Wis. Adm. Code.
Waste lead-acid batteries that will be sent off-site for recycling. See NR 660, Subchapter G [PDF exit DNR].
Used oil that is recycled and regulated under Ch. NR 679, Wis. Adm. Code. See s. NR 661.06(1)(d) [PDF exit DNR], Wis. Adm. Code.
PCBs that are regulated under Chapter NR 157, Wis. Adm. Code and EPAs Toxic Substances Control Act. See s. NR 661.08 [PDF exit DNR], Wis. Adm. Code.
Batteries, pesticides, thermostats, lamps, anti-freeze and mercury containing devices managed under the Universal Waste Rule. See ch. NR 673 [PDF exit DNR], Wis. Adm. Code or WA-742 02 [PDF].