NR 422.03(1)(1) Any surface coating process line which meets the specific applicability requirements of s. NR 422.07, 422.10, 422.11, 422.12, or 422.13, within a facility when actual emissions of VOCs from all surface coating process lines meeting the same applicability requirements within the facility are never greater than 6.8 kilograms (15 pounds) in any one day with all emission control equipment inoperative. NR 422.03(3)(3) Surface coating facilities as described under s. NR 422.07, 422.10, 422.11, 422.12, or 422.13 which are located outside the counties of Brown, Calumet, Dane, Dodge, Door, Fond du Lac, Jefferson, Kenosha, Kewaunee, Manitowoc, Milwaukee, Outagamie, Ozaukee, Racine, Rock, Sheboygan, Walworth, Washington, Waukesha, and Winnebago and which have total emissions of VOCs from the facility, with all emission control equipment inoperative, of less than 100 tons per year. NR 422.03(5)(5) Surface coating process sources used exclusively for chemical or physical analysis or determination of product quality and commercial acceptance where all of the following conditions are met: NR 422.03(5)(a)(a) The operation of the source is not an integral part of the production process. NR 422.03(5)(b)(b) The emissions from the source do not exceed 363 kilograms (800 pounds) in any calendar month. NR 422.03(7)(7) Coatings and inks that are subject to an emission limitation under ss. NR 422.05 to 422.083, 422.085, 422.09, or 422.10 to 422.17, but that do not comply with the applicable emission limitation, if the aggregate use of these noncompliant coatings and inks at the facility does not exceed 55 gallons during any 12 consecutive months. NR 422.03 HistoryHistory: Renum. from NR 154.13 (4) (a) and am. Register, September, 1986, No. 369, eff. 10-1-86; am. (3) and cr. (6), Register, January, 1987, No. 373, eff. 2-1-87; am. (intro.), (2) and (3), Register, August, 1989, No. 404, eff. 9-1-89; am. (intro.), (1) to (4) and (6) (b), Register, February, 1990, No. 410, eff. 3-1-90; am. (intro.) and (2), Register, May, 1992, No. 437, eff. 6-1-92; am. (1) to (4), (6) (a) and (b), Register, December, 1993, No. 456, eff. 1-1-94; cr. (4m), Register, June, 1994, No. 462, eff. 7-1-94; am. (intro.), cr. (8) and (9), Register, August, 1994, No. 464, eff. 9-1-94; am. (1), (3), Register, August, 1995, No. 476, eff. 9-1-95; am. (intro.), (2), (3), (4), (4m) (b) and (c), cr. (7), Register, December, 1995, No. 480, eff. 1-1-96; r. and recr. (7), Register, October, 1999, No. 526, eff. 11-1-99; CR 11-005: am. (1), (3), r. (2), (4), (4m), (6), (8), (9) Register January 2012 No. 673, eff. 2-1-12; CR 20-088: am. (intro.), (7) Register May 2022 No. 797, eff. 6-1-22. NR 422.04(1)(1) In-line averaging. Compliance with the emission limitations of this chapter may be achieved through a daily volume-weighted average of all coatings or inks applied by emission units in a process line subject to the same numerical emission limitation. Any owner or operator achieving compliance by means of this subsection shall comply with the reporting requirements of s. NR 439.03 (7) and the recordkeeping requirements of s. NR 439.04 (5) (g). NR 422.04(1)(a)(a) No owner or operator of a coating line subject to an emission limitation contained in ss. NR 422.05 to 422.084, 422.09 to 422.12, 422.132, 422.135, 422.15, 422.151, or 422.155 and complying with the emission limitation by means of this subsection may cause, allow or permit the daily volume-weighted average VOC content to exceed the emission limitation to which the coatings are subject. For purposes of this paragraph, daily volume-weighted average VOC content shall be calculated by using the following equation: where:
VOCA is the volume-weighted average VOC content of 2 or more coatings applied on a coating line during any day in kilograms per liter (pounds per gallon) of coating, excluding water
i is the subscript denoting an individual coating
n is the number of different coatings subject to the same numerical emission limitation applied during any day on a coating line
Ci is the VOC content of each coating (i) as applied during any day on the coating line in kilograms per liter (pounds per gallon) of coating, excluding water
Vi is the volume of each coating (i), excluding water, as applied during any day on the coating line in liters (gallons)
VT is the total volume of all n coatings subject to the same emission limitation, excluding water, applied during any day on the coating line in liters (gallons)
NR 422.04(1)(b)(b) No owner or operator of a printing line subject to an emission limitation contained in s. NR 422.14 (2) (a) or (b) and complying with the emission limitation by means of this subsection may cause, allow or permit the daily volume-weighted average VOC content to exceed the emission limitation to which the inks are subject: where:
VOCB is the volume-weighted average VOC content of 2 or more inks applied on a printing line during any day in percent VOC by volume of the volatile fraction
i is the subscript denoting an individual ink
n is the number of different inks subject to the same emission limitation applied during any day on a printing line
Ci is the VOC content in percent VOC by volume of the volatile fraction in each ink (i) as applied
Li is the volume of each ink (i) as applied in liters (gallons)
VVFi is the volume fraction volatile content in each ink (i) as applied
where:
VOCC is the volume-weighted average VOC content of 2 or more inks applied on a printing line during any day in percent VOC by volume, excluding water
i is the subscript denoting an individual ink
n is the number of different inks subject to the same emission limitation applied during any day on a printing line
Ci is the VOC content of each ink (i) applied during any day on the printing line in percent VOC by volume, excluding water
Vi is the volume of each ink (i), excluding water, applied during any day on the printing line in liters (gallons)
VT is the total volume of all n inks subject to the same emission limitation, excluding water, applied during any day on the printing line in liters (gallons)
NR 422.04(1)(c)(c) An owner or operator of a coating or printing line subject to an emission limitation in this chapter not specified in par. (a) or (b) may comply by means of this subsection only by obtaining prior department approval through an order issued under s. 285.13 (2), Stats., or through a permit. Any approval granted by the department under this paragraph shall be submitted to, and will not become effective for federal purposes until approved by, the administrator or designee as a source-specific revision to the department’s state implementation plan for ozone. NR 422.04(2)(2) General methods. The surface coating or printing emission limitations shall be achieved by one of the following: NR 422.04(2)(a)(a) The application of low solvent content coating or ink technology. NR 422.04(2)(b)(b) A vapor recovery system which recovers the solvent for reuse. NR 422.04(2)(c)(c) Incineration or catalytic oxidation, provided that 90% of the nonmethane VOCs (VOC measured as total combustible carbon) which enter the incinerator or oxidation unit are oxidized to non-organic compounds. NR 422.04(2)(d)(d) An equivalent system or approach demonstrated to reliably control emissions to a level at or below the applicable emission limit and approved by the department. Any approval granted by the department under this paragraph shall be submitted to, and will not become effective for federal purposes until approved by, the administrator or designee as a source-specific revision to the department’s state implementation plan for ozone. NR 422.04(3)(3) High transfer efficiency coating application. NR 422.04(3)(a)(a) Surface coating operations covered under ss. NR 422.09 to 422.11 and 422.15 have the added option of achieving compliance with the emission limitation through the use of an alternative control method or system involving a high transfer efficiency coating application system, either when used alone or in conjunction with low solvent content coating technology. NR 422.04(3)(b)(b) Compliance under the option provided in this subsection must be approved by the department. This requires that all of the following conditions are met: NR 422.04(3)(b)1.1. The design, operation and efficiency of the application system must be certified in writing by the owner or operator and submitted to the department for approval. NR 422.04(3)(b)2.2. The solvent usage per coated part for application system must be less than or equal to the solvent usage per coated part at the applicable emission limitation using baseline transfer efficiency. NR 422.04(3)(c)(c) Each alternative control method or system approval granted by the department under this subsection shall be submitted to, and will not become effective for federal purposes until approved by, the administrator or designee as a source-specific revision to the department’s state implementation plan for ozone. NR 422.04(4)(4) Capture systems. The design, operation and efficiency of any capture system used in conjunction with sub. (2) (b), (c) or (d) shall be certified in writing by the owner or operator. The efficiency of the capture system is subject to approval by the department. For sources subject to an emission limitation under this chapter which is expressed in units of pounds VOC per gallon of coating or ink, excluding water, the efficiency of the capture system shall be great enough to insure that for any day either 95% overall control is achieved or the emissions from the controlled line are less than or equal to the amount determined using the following equation: where:
E is the total allowable daily emissions of VOCs in kilograms (pounds) from all coatings or inks subject to the same numerical emission limitation and applied on the controlled line
i is the subscript denoting an individual coating or ink
n is the number of different coatings or inks applied
Ai is the allowable emission rate for the coatings or inks pursuant to the requirements of this chapter in kilograms per liter (pounds per gallon) of coating or ink, excluding water, delivered to the applicator
Bi is the amount of coating material or ink in liters (gallons), delivered to the applicator during the actual production day
Ci is the volume fraction of solids in the coating or ink, delivered to the applicator during the actual production day
Di is the theoretical volume fraction of solids in the coating or ink necessary to meet the allowable emission rate pursuant to the requirements of this chapter calculated from:
where:
Pi is the density of the VOC used in the coating or ink delivered to the applicator during the actual production day in kilograms per liter (pounds per gallon). If the coating or ink does not contain any VOCs, or if the actual VOC density cannot be demonstrated by the owner or operator, a value of 0.88 kilograms per liter (7.36 pounds per gallon) shall be used for P.
NR 422.04 HistoryHistory: Renum. from NR 154.13 (4) (b) and am. Register, September, 1986, No. 369, eff. 10-1-86; renum. (1) to (3) to be (2) to (4) and am. (3) (a), (b) (intro.) and 1. and (4), cr. (1) and (3) (c), Register, February, 1990, No. 410, eff. 3-1-90; renum. (1) to be (1) (intro.) and am., cr. (1) (a) to (c), am. (2) (d) and (3) (c), r. and recr. (4), Register, December, 1993, No. 456, eff. 1-1-94; am. (1) (a) Register, August, 1994, No. 464, eff. 9-1-94; am. (4) Register, June, 1995, No. 474, eff. 7-1-95; am. (1) (a), (c), (2) (intro.), (d), and (3) (b) (intro.), (c), Register, December, 1996, No. 492, eff. 1-1-97; am. (4), Register, October, 1999, No. 526, eff. 11-1-99; CR 00-174: am. (1) (a), Register August 2001 No. 548, eff. 9-1-01; CR. 02-146: am. (2) (intro.) and (a) Register October 2003 No. 574, eff. 11-1-03; CR 20-088: am. (1) (a) Register May 2022 No. 797, eff. 6-1-22. NR 422.05(1)(a)(a) Subsections (2) and (4) apply to coating applicators and ovens of sheet, can or end coating lines involved in sheet basecoat (exterior and interior) and overvarnish; 2-piece can exterior (basecoat and overvarnish); 2- and 3-piece can interior body spray; 2-piece can exterior end (spray or roll coat); 3-piece can side-seam spray and end sealing compound operations at a facility that is either of the following: NR 422.05(1)(a)1.1. Located in the county of Brown, Calumet, Dane, Dodge, Door, Fond du Lac, Jefferson, Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Outagamie, Racine, Rock, Sheboygan, Walworth, Washington, Waukesha, or Winnebago and which has VOC emissions from all can coating lines at the facility, before consideration of controls, exceeding 6.8 kilograms (15 pounds) in any one day. NR 422.05(1)(a)2.2. Located outside of the counties of Brown, Calumet, Dane, Dodge, Door, Fond du Lac, Jefferson, Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Outagamie, Racine, Rock, Sheboygan, Walworth, Washington, Waukesha, and Winnebago and which has total VOC emissions from the facility, before consideration of controls, equal to or exceeding 100 tpy. NR 422.05(1)(b)(b) Except as provided in sub. (1m), subs. (3) and (4) apply to a facility with coating operations as described in par. (a) and which is located in the county of Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington, or Waukesha if VOC emissions from all industrial cleaning operations, before consideration of controls, equal or exceed 3 tons per year on a 12 consecutive month rolling basis. NR 422.05(1m)(1m) Exemptions. The following exemptions are applicable to various provisions of this section: NR 422.05(1m)(a)(a) Subsection (3) does not apply to the stripping of cured coatings or cured inks. NR 422.05(1m)(b)(b) Subsection (3) (a) 4. in Table 1 does not apply to facilities using less than a total of 1.5 gallons per day of VOC-containing solvents and solvent solutions to clean sterilization indicating ink application equipment. NR 422.05(1m)(c)(c) Subsection (3) (a) does not apply to cleaning conducted in conjunction with performance testing on coatings or inks, research and development programs, and quality assurance testing. This exemption is limited to the use of up to a total of 110 gallons of solvents and solvent solutions per year on a 12 consecutive month rolling basis. NR 422.05(1m)(d)(d) Subsection (3) (a) and (e) do not apply to cleaning with aerosol products if 160 fluid ounces or less of VOC-containing aerosol products are used per day for industrial cleaning operations per facility. NR 422.05(1m)(g)(g) Subsection (3) (e) does not apply to the cleaning of the nozzle tips of automated spray equipment systems, except for robotic systems that are programmed to spray into a closed container. NR 422.05(2)(2) Emission limitations. No owner or operator of a can coating line may cause, allow or permit the emission of any VOCs in excess of: NR 422.05(2)(a)(a) 0.34 kilograms per liter of coating (2.8 pounds per gallon), excluding water, delivered to each coating applicator from sheet basecoat (exterior and interior) and overvarnish or 2-piece can exterior (basecoat and overvarnish) operations. NR 422.05(2)(b)(b) 0.51 kilograms per liter of coating (4.2 pounds per gallon), excluding water, delivered to each coating applicator from 2- and 3-piece can interior body spray and 2-piece can exterior end (spray or roll coat) operations. NR 422.05(2)(c)(c) 0.66 kilograms per liter of coating (5.5 pounds per gallon), excluding water, delivered to each coating applicator from 3-piece can side-seam spray operations. NR 422.05(2)(d)(d) 0.44 kilograms per liter of coating (3.7 pounds per gallon), excluding water, delivered to each coating applicator from end sealing compound operations. NR 422.05(3)(3) 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 422.05(3)(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 the applicable VOC content listed in Table 1 for the respective cleaning operation. For the purposes of this subsection, VOC content shall have the meaning given in s. NR 423.02 (11r). NR 422.05(3)(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 422.05(3)(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 422.05(3)(b)2.2. Closed containers or hand held spray bottles from which solvents or solvent solutions are applied without a propellant-induced force.
