299.47(1)(c)(c) “Owner” means a person who owns, or has possession or control of, a dry cleaning facility, or who receives direct or indirect consideration from the operation of a dry cleaning facility.

299.47(2)(2) A supplier of dry cleaning solvent may not sell or deliver to the owner or operator of a dry cleaning facility any dry cleaning solvent unless the dry cleaning facility is licensed under s. 77.9961 (2).

299.48(1)(a)(a) “Class B fire fighting foam” means a foam designed for use on a flammable liquid fire, and may include a dual action Class A and B foam.

299.48(1)(b)(b) “PFAS” means a perfluoroalkyl or polyfluoroalkyl substance.

299.48(1)(c)(c) “Testing” includes testing of a fire fighting foam to evaluate its effectiveness and testing of a fire fighting foam delivery system or equipment.

299.48(1)(d)(d) “Training” means providing first-hand field experience to a person who may use a fire fighting foam as part of an emergency fire fighting or fire prevention operation.

299.48(2)(2) Prohibition. Except as provided under sub. (3), no person may use or otherwise discharge, including for training purposes, a class B fire fighting foam that contains intentionally added PFAS.

299.48(3)(a)(a) The use or discharge of a class B fire fighting foam that contains intentionally added PFAS as part of an emergency fire fighting or fire prevention operation.

299.48(3)(b)(b) The use of class B fire fighting foam that contains intentionally added PFAS for testing purposes, including calibration testing, conformance testing, or fixed system testing, if the testing facility has implemented appropriate containment, treatment, and disposal or storage measures to prevent discharges of the foam to the environment. Appropriate containment, treatment, and disposal or storage measures may not include flushing, draining, or otherwise discharging the foam into a storm or sanitary sewer.

299.48(3m)(a)(a) A person who uses or discharges a fire fighting foam under the exemption in sub. (3) (a) shall notify the department of the use or discharge immediately or as soon as practicable without hindering fire fighting or fire prevention operations. A person who possesses a fire fighting foam that may be used under the exemption in sub. (3) (a) shall request and retain any safety data sheets relating to the fire fighting foam and shall make them available to the department for examination after providing the notice under this paragraph.

299.48(3m)(b)(b) A person who uses a fire fighting foam under the exemption in sub. (3) (b) shall notify the department immediately of any discharge of the foam to the environment.

299.48(4)(4) Construction. Nothing in this section shall be construed as prohibiting the manufacture, sale, or distribution of a class B fire fighting foam that contains intentionally added PFAS.

299.48(5)(5) Rules. The department shall promulgate rules to implement and administer this section, including to determine appropriate containment, treatment, and disposal or storage measures for testing facilities under sub. (3) (b).

299.49(1)(a)(a) “Mercury-added product” means a product to which mercury is intentionally added during formulation or manufacture, or a product containing one or more components to which mercury is intentionally added during formulation or manufacture.

299.49(1)(b)(b) “Mercury-added thermostat” means a product or device that uses a mercury switch to sense and control room temperature through communication with heating, ventilating, or air-conditioning equipment. “Mercury-added thermostat” includes thermostats used to sense and control room temperature in residential, commercial, industrial, and other buildings, but does not include a thermostat used to sense and control temperature as part of a manufacturing process or in the generating, transmission, or distributing facilities for electric energy, gas, or water.

299.49(1)(c)(c) “Mercury relay” means a mercury-added product or device that opens or closes electrical contacts to effect the operation of other devices in the same or another electrical circuit. “Mercury relay” includes mercury displacement relays, mercury wetted reed relays, and mercury contact relays.