Chapter NR 422

Vw is the volume of water, in gallons

Vec is the volume of exempt compounds, in gallons

NR 422.095(4)(e) (e) The VOC content for a multi-stage topcoat shall be calculated according to the following formula:

where:

VOCmulti is the VOC content of a multi-stage topcoat, in pounds of VOC per gallon of coating

VOCbc is the VOC content of the basecoat, as determined in par. (d)

VOCmci is the VOC content of midcoat i, as determined in par. (d)

VOCcc is the VOC content of the clearcoat, as determined in par. (d)

M is the number of midcoats.

NR 422.095(5) (5) Application equipment. No owner or operator of an automobile refinishing operation may refinish or allow the refinishing of any motor vehicles or their body parts and components unless one of the following types of application equipment is used in accordance with the manufacturer’s recommendations:

NR 422.095(5)(a) (a) Electrostatic application equipment.

NR 422.095(5)(b) (b) Low-pressure spray method application equipment.

NR 422.095(6m) (6m) Specialty coatings. No owner or operator of an automobile refinishing operation may apply or allow the application of a specialty coating for any reason other than the manufacturer’s intended purposes.

NR 422.095(7) (7) Industrial cleaning operations. Beginning on March 1, 2013, the owner or operator of a facility subject to this subsection shall meet the requirements of this subsection.

NR 422.095(7)(a) (a) Solvent and solvent solution requirements. Except as provided under par. (d), no owner or operator of a facility may cause, allow or permit the use of a solvent or solvent solution for industrial cleaning operations unless the VOC content of the solvent or solvent solution is less than or equal to 0.05 kilograms of VOC per liter (0.42 pounds per gallon). For the purposes of this subsection, VOC content shall be defined as in s. NR 423.02 (11r).

NR 422.095(7)(b) (b) Cleaning devices and methods requirements. Except as provided under par. (d), the owner or operator of a facility shall comply with the following requirements associated with the identified cleaning devices or methods when using solvents or solvent solutions:

NR 422.095(7)(b)1. 1. Physically rub a surface with a porous applicator such as a rag, paper, sponge, or a cotton swab moistened with solvent or solvent solution.

NR 422.095(7)(b)2. 2. Closed containers or hand held spray bottles from which solvents or solvent solutions are applied without a propellant-induced force.

NR 422.095(7)(b)3. 3. Cleaning equipment which has a solvent or solvent solution container that is closed during cleaning operations, except when depositing and removing objects to be cleaned, and is closed during non-operation with the exception of maintenance and repair to the cleaning equipment itself.

NR 422.095(7)(b)4. 4. A remote reservoir cleaner operated in compliance with all of the following requirements:

NR 422.095(7)(b)4.a. a. Solvent vapors are prevented from escaping from the solvent or solvent solution container by using devices such as a cover or a valve when the remote reservoir is not being used, cleaned, or repaired.

NR 422.095(7)(b)4.b. b. Flow is directed in a manner that prevents solvent or solvent solution from splashing outside of the remote reservoir cleaner.

NR 422.095(7)(b)4.c. c. The cleaner is not used for cleaning porous or absorbent materials, such as cloth, leather, wood, or rope.

NR 422.095(7)(b)4.d. d. Only solvent or solvent solution containers free of all liquid leaks are used. Auxiliary equipment, such as pumps, pipelines, or flanges, may not have any liquid leaks, visible tears, or cracks. Any liquid leak, visible tear, or crack detected shall be repaired within one calendar day, or the leaking section of the remote reservoir cleaner shall be drained of all solvents or solvent solutions and shut down until it is replaced or repaired.

NR 422.095(7)(b)5. 5. A non-atomized flow method where the used solvents or solvent solutions are collected in a container or a collection system which is closed, except for the solvent or solvent solution collection openings that may be open when filling or emptying, or the opening caused by use of a pressure relief valve.

NR 422.095(7)(b)6. 6. A flushing method where the used solvents or solvent solutions are discharged into a container which is closed, except for the solvent or solvent solution collection openings that may be open when filling or emptying, or the opening caused by use of a pressure relief valve. The discharged solvents or solvent solutions shall be collected into containers without atomizing into the open air.

NR 422.095(7)(c) (c) Storage and disposal. The owner or operator of a facility shall store all solvents or solvent solutions used in industrial cleaning operations in non-absorbent, non-leaking containers which shall be kept covered except when filling or emptying. Cloth and paper moistened with solvents or solvent solutions shall be stored in covered, non-absorbent, non-leaking containers. Waste paint, spent solvent and sludge from spray gun cleaners or in-house distillation units shall be stored in closed containers until properly disposed. Proper disposal includes releasing wastes to a reclaiming or hazardous waste management facility licensed under ch. NR 670, or recycling with an in-house distillation unit.

NR 422.095(7)(d) (d) Control equipment. In lieu of complying with the requirements in pars. (a) and (b), the owner or operator of a facility may use a VOC emission control system to control VOC emissions from the industrial cleaning operations at the facility provided one of the following requirements is met:

NR 422.095(7)(d)1. 1. The emission control system has a minimum overall emission reduction efficiency of 85% for VOC emissions, as determined in accordance with s. NR 439.06 (3) (am).

NR 422.095(7)(d)2. 2. The emission control system has a minimum VOC capture efficiency of 90% and an output of VOC emissions of less than 50 ppm calculated as carbon, not including methane and ethane, with no dilution, as determined in accordance with s. NR 439.06 (3) (a).

NR 422.095(7)(e) (e) General prohibitions. The owner or operator of a facility may not atomize any solvent or solvent solution unless the resulting VOC emissions are controlled by an air pollution control system that meets one of the requirements of par. (d).

NR 422.095(7)(f) (f) Alternative compliance option. In lieu of complying with the requirements in par. (a), the owner or operator of a facility may use solvents or solvent solutions for industrial cleaning operations which have a VOC composite partial vapor pressure of less than or equal to 8 mm of Hg at 20°C.

NR 422.095(8) (8) Recordkeeping. In addition to the applicable recordkeeping requirements in s. NR 439.04, the owner or operator of any automobile refinishing operation shall collect and record the applicable information specified in this subsection. The information shall be maintained at the facility for a minimum of 5 years and shall be made available to a department representative at any time during normal working hours. The information required is:

NR 422.095(8)(a) (a) For each operation that is exempt under sub. (2) (f), the daily quantity in fluid ounces of VOC-containing aerosol product used for industrial cleaning operations.

NR 422.095(8)(b) (b) For each operation that is subject to sub. (7), the following information as appropriate:

NR 422.095(8)(b)1. 1. The name and identification of each cleaning material and the associated solvent cleaning activity.

NR 422.095(8)(b)2. 2. The VOC content of each cleaning material, in pounds per gallon of material, as employed or the VOC composite partial vapor pressure of the solvents or solvent solutions used in industrial cleaning operations.

NR 422.095(8)(b)3. 3. For any operation subject to sub. (7) (d), the results of any testing conducted as required under sub. (7) (d).

NR 422.095 History History: Cr. Register, August, 1995, No. 476, eff. 9-1-95; am. (1), (2) (a), (3) (a) (intro.), (b), (5) (intro.), (6) (intro.) and (7), r. (2) (c), (6) (a), (b) and (8), r. and recr. (4), renum. (6) (c) to (f) to be (6) (a) to (d) and am. (6) (d), Register, January, 2001, No. 541, eff. 2-1-01; CR 00-174: am. (4) (a) to (d), renum. Table 1 to be Table 2, Register August 2001 No. 548, eff. 9-1-01; correction in (6) (b) made under s. 13.92 (4) (b) 7., Stats., Register July 2009 No. 643; CR 11-005: renum. (1) to be (1) (a) and am., r. (6), cr. (1) (b), (2) (c) to (i), (7), (8), am. (2) (a) Register January 2012 No. 673, eff. 2-1-12, correction in numbering made to (6m) renum. from (7) made under s. 13.92 (4) (b) 7., Register January 2012 No. 673.

NR 422.10 NR 422.10 Furniture metal coating — part 1.

NR 422.10(1) (1) Applicability. This section applies, subject to the provisions of s. NR 425.03, to the application areas, flashoff areas and ovens of furniture metal coating lines involved in prime and topcoat or single coating operations. This section does not apply to sources exempted under s. NR 422.03.

NR 422.10(2) (2) Emission limitations. No owner or operator of a furniture metal coating line may cause, allow or permit the emission of any VOCs in excess of 0.36 kilograms per liter of coating (3.0 pounds per gallon), excluding water, delivered to each coating applicator from prime and topcoat or single coat operations.

NR 422.10 History History: Renum. from NR 154.13 (4) (h) and am. Register, September, 1986, No. 369, eff. 10-1-86; am. (2), Register, February, 1990, No. 410, eff. 3-1-90; CR 08-102: am. (title) Register July 2009 No. 643, eff. 8-1-09.

NR 422.105 NR 422.105 Furniture metal coating — part 2.

NR 422.105(1) (1) Applicability. This section applies to facilities which are located in the county of Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington, or Waukesha and have VOC emissions, before consideration of controls, equal to or exceeding 3 tons on a 12 consecutive month rolling basis from the application of coatings, including any related cleaning activities, to metal furniture. For purposes of this section, coatings include paints, sealants, caulks, inks, adhesives or maskants, but do not include metal protection oils, acids and bases.

NR 422.105(2) (2) Exemptions. The following coating types are exempt from the emission limitations in sub. (3):

NR 422.105(2)(a) (a) Stencil coatings.

NR 422.105(2)(b) (b) Safety-indicating coatings.

NR 422.105(2)(c) (c) Solid-film lubricants.

NR 422.105(2)(d) (d) Electric-insulating and thermal-conducting coatings.

NR 422.105(2)(e) (e) Touch-up and repair coatings.

NR 422.105(2)(f) (f) Hand-held aerosol can coatings.

NR 422.105(3) (3) Emission limitations. On and after May 1, 2010, no owner or operator may cause, allow or permit the emission of any VOCs in excess of limits listed in Table 2A. Notwithstanding s. NR 422.04 (4), an owner or operator using a control device to achieve compliance with this subsection as allowed under s. NR 422.04 (2) (c), shall achieve a minimum overall VOC control efficiency of 90%.

- See PDF for table

NR 422.105(4) (4) Application equipment and methods. No owner or operator of a furniture metal coating line subject to sub. (3) may apply coatings unless one of the following types of high transfer efficiency application equipment is used in accordance with the manufacturer’s recommendations:

NR 422.105(4)(a) (a) Electrostatic application.

NR 422.105(4)(b) (b) Low-pressure spray method.

NR 422.105(4)(c) (c) Flow coating.

NR 422.105(4)(d) (d) Roll coating.

NR 422.105(4)(e) (e) Dip coating, including electrodeposition.

NR 422.105(4)(f) (f) A coating application method demonstrated to the department to be capable of achieving a transfer efficiency equivalent to or better than that achieved by low-pressure spray method, and for which written approval of the department has been obtained.

NR 422.105(5) (5) Work practices. On and after November 1, 2009, the owner or operator of a furniture metal surface coating facility shall employ work practices to minimize VOC emissions from mixing operations, storage tanks and other containers, and handling operations for coatings, thinners, cleaning materials, and waste materials. Work practices shall include all of the following, at a minimum:

NR 422.105(5)(a) (a) Store all VOC-containing coatings, thinners, coating related waste materials, cleaning materials, and shop towels used for cleaning in closed containers.

NR 422.105(5)(b) (b) Close mixing and storage vessels used for VOC-containing coatings and other materials except when depositing or removing these materials.

NR 422.105(5)(c) (c) Convey VOC-containing coatings, thinners, and cleaning materials in closed containers or pipes.

NR 422.105(5)(d) (d) Minimize spills of VOC-containing coating, thinners, and cleaning materials.

NR 422.105(5)(e) (e) Minimize emissions of VOC during cleaning of coating application, storage, mixing, and conveying equipment.

NR 422.105(5)(f) (f) Clean-up spills of any VOC-containing material immediately.

NR 422.105 History History: CR 08-102: cr. Register July 2009 No. 643, eff. 8-1-09; CR 11-005: am. (5) (b) Register January 2012 No. 673, eff. 2-1-12.

NR 422.11 NR 422.11 Surface coating of large appliances — part 1.

NR 422.11(1) (1) Applicability. This section applies, subject to the provisions of s. NR 425.03, to application areas, flashoff areas and ovens of large appliance coating lines involved in single, prime or topcoat coating operations. This section does not apply to:

NR 422.11(1)(a) (a) Sources exempted under s. NR 422.03.

NR 422.11(1)(b) (b) The use of quick-drying lacquers for repair of scratches and nicks that occur during assembly, provided that the volume of coating does not exceed 0.95 liters (1 quart) in any one 8-hour period for any appliance coating line.

NR 422.11(2) (2) Emission limitations. No owner or operator of a large appliance coating line may cause, allow or permit the emission of any VOCs in excess of 0.34 kilograms per liter of coating (2.8 pounds per gallon), excluding water, delivered to each coating applicator from single, prime or topcoat coating operations.

NR 422.11 History History: Renum. from NR 154.13 (4) (i) and am. Register, September, 1986, No. 369, eff. 10-1-86; am. (2), Register, February, 1990, No. 410, eff. 3-1-90; CR 08-102: am. (title) Register July 2009 No. 643, eff. 8-1-09.

NR 422.115 NR 422.115 Surface coating of large appliance — part 2.

NR 422.115(1) (1) Applicability. This section applies to facilities which are located in the county of Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington or Waukesha and have VOC emissions, before consideration of controls, equal to or exceeding 3 tons on a 12 consecutive month rolling basis from large appliance surface coating, including any related cleaning activities. For purposes of this section, coatings include paints, sealants, caulks, inks, adhesives, and maskants, but do not include metal protection oils, acids and bases.

NR 422.115(2) (2) Exemptions. The following coating types are exempt from the emission limitations in sub. (3):

NR 422.115(2)(a) (a) Stencil coatings.

NR 422.115(2)(b) (b) Safety-indicating coatings.

NR 422.115(2)(c) (c) Solid-film lubricants.

NR 422.115(2)(d) (d) Electric-insulating and thermal-conducting coatings.

NR 422.115(2)(e) (e) Touch-up and repair coatings.

NR 422.115(2)(f) (f) Hand-held aerosol can coatings.

NR 422.115(3) (3) Emission limitations. On and after May 1, 2010, no owner or operator may cause, allow or permit the emission of any VOCs in excess of limits listed in Table 2B. Notwithstanding s. NR 422.04 (4), an owner or operator using a control device to achieve compliance with this subsection as allowed under s. NR 422.04 (2) (c), shall achieve a minimum overall VOC control efficiency of 90%.

- See PDF for table

NR 422.115(4) (4) Application equipment and methods. No owner or operator of a large appliance surface coating line subject to sub. (3) may apply coatings unless one of the following types of high transfer efficiency application equipment is used in accordance with the manufacturer’s recommendations:

NR 422.115(4)(a) (a) Electrostatic application equipment.