NR 422.02(104)(104) “Transfer efficiency” means the portion of coating solids which adheres to the surface being coated during the application process, expressed as a percentage of the total volume of coating solids delivered to the applicator. NR 422.02(104m)(104m) “Translucent coating” means a coating that contains binders and pigment and is formulated to form a colored, but not opaque, film. NR 422.02(105)(105) “Two-piece can exterior end coating” means a coating applied by roller coating or spraying to the exterior end of a can to provide protection to the metal. NR 422.02(105g)(105g) “Two-stage topcoat” means a topcoat consisting of a pigmented basecoat and a transparent clearcoat. NR 422.02(105r)(105r) “Underbody coating” means a coating designed for protection and sound deadening that is typically applied to the wheel wells and underbody of an automobile. NR 422.02(106)(106) “Uniform finish blender” means a thinner or low solids clear solution which is used to blend overspray from a repaired area into the unrepaired color. NR 422.02(106m)(106m) “Vacuum metallizing” means a process whereby metal is vaporized and deposited on a substrate in a vacuum chamber. NR 422.02(106s)(106s) “Vacuum metalizing coating” means the undercoat applied to the substrate on which the metal is deposited or the overcoat applied directly to the metal film. NR 422.02(107)(107) “Vinyl coating” means printing on or applying a decorative or protective topcoat, other than vinyl plastisols or organisols, to vinyl or urethane coated fabric or vinyl or urethane sheets. NR 422.02(108)(108) “Washcoat” means, for the purpose of wood furniture coating, a transparent coating having a solids content, by weight, of 12.0% or less applied over initial stains to protect and control color and prepare the wood for sanding. NR 422.02(109)(109) “Washoff operation” means, for the purpose of wood furniture coating, the process of using an organic solvent to remove coating from a substrate. NR 422.02(109m)(109m) “Water hold-out coating” means a coating applied to the interior cavity areas of doors, quarter panels and rocker panels for the purpose of corrosion resistance to prolonged water exposure. NR 422.02(109s)(109s) “Waterproof resorcinol glue” means a 2-part resorcinol-resin-based adhesive designed for applications in which the bond line must be resistant to conditions of continuous immersion in fresh or salt water. NR 422.02(110)(110) “Web” means a substrate onto which inks or coatings are applied after the substrate is unwound from a continuous roll and prior to the substrate being rewound or cut. NR 422.02(110m)(110m) “Weld-through primer” means a primer that is applied to an area before welding is performed and that provides corrosion resistance to the surface after welding has been performed. NR 422.02(111)(111) “White pigmented coating” means a pigmented coating which contains 99.5% or more by weight white prime pigment as a percentage of all prime pigments. NR 422.02(112)(112) “Wood furniture” means any wood product that is within one of the following standard industrial classification codes, as described in the Standard Industrial Classification Manual, 1987, incorporated by reference in s. NR 484.05 (1): NR 422.02(112)(d)(d) 2517—wood television, radio, phonograph and sewing machine cabinets. NR 422.02(112)(h)(h) 2541—wood office and store fixtures, partitions, shelving and lockers. NR 422.02 HistoryHistory: Renum. from NR 154.01, Register, September, 1986, No. 369, eff. 10-1-86; cr. (24m), Register, January, 1987, No. 373, eff. 2-1-87; cr. (21m), Register, July, 1988, No. 391, eff. 8-1-88; cr. (12m), (16m) and (33m), am. (34) and (47), Register, August, 1989, No. 404, eff. 9-1-89; renum. (6) to be NR 400.02 (21m), am. (16), (32) (33m) and (50), cr. (28m), (33g) and (41m), (12s) renum. from NR 400.02 (36), Register, February, 1990, No. 410, eff. 3-1-90; am. (7), Register, May, 1992, No. 437, eff. 6-1-92; am. (50), Register, December, 1993, No. 456, eff. 1-1-94; cr. (11m), (21s), (41p), (41s), (41v) and (42m), am. (32), Register, June, 1994, No. 462, eff. 7-1-94; cr. (16e), (42q), (42s) and (47m), Register, July, 1994, No. 463, eff. 8-1-94; am. (7) and (34), cr. (12e), (18m), (24s), (27m), (33d), (34m), (46m) and (51), Register, August, 1994, No. 464, eff. 9-1-94; cr. (6), (18s), (21e), (24p), (24q), (28g), (37v), (41y) and (50v), Register, June, 1995, No. 474, eff. 7-1-95; am. (intro.) and (47), renum. (1) to be (1s), cr. (1), (1e), (1m), (1x), (3e), (3m), (7m),(12d), (16g), (16i), (16k), (28j), (33j), (34s), (34v), (37s), (41w), (42n), (42o), (42u), (43m), (44m), (47e), (49m), (50e), (50m) and (52), Register, August, 1995, No. 476, eff. 9-1-95; correction in (22) and (23) made under s. 13.93 (2m) (b) 1., Stats., Register, August, 1995, No. 475; renum. (1e) to (52) to be (2) to (112) and am. (13), (20) and (42), Register, December, 1995, No. 480, eff. 1-1-96; r. (24), am. (89), Register, December, 1996, No. 492, eff. 1-1-97; am. (42), Register, October, 1999, No. 526, eff. 11-1-99; am. (1), (68), (70), (89) and (102), cr. (7e), (7m), (7s), (19m), (20m), (39m), (42m), (45m), (49m), (53m), (54m), (67m), (87m), (96m), (105g), (105r), (109m) and (110m), Register, January, 2001, No. 541, eff. 2-1-01; CR 00-160: cr. (19s); CR 00-174: am. (5), (8), and (89), cr. (7v), (7y), (12m), (21m), (22m), (53e), (53s), (61m), (64m), (75g), (75r), (85m), (87s), (90m), (95m), and (106m), Register August 2001 No. 548, eff. 9-1-01; corrections in (49m) and (67m) made under s. 13.93 (2m) (b) 7., Stats., Register August 2001 No. 548; CR. 02-146: am. (67m) Register October 2003 No. 574, eff. 11-1-03; correction in (13), (49m) and (112), made under s. 13.93 (2m) (b) 7., Stats., Register October 2003 No. 574; CR 08-102: am. (12), (13), (77), (90m) and (102), cr. (12s), (21g), (26m), (34g), (34r), (37m), (40m), (53i), (54s), (57m), (80m), (87v), (87x) and (107m) Register July 2009 No. 643, eff. 8-1-09; CR 11-005: am. (12), (34g), (34r), (83), r. (84), cr. (90r) Register January 2012 No. 673, eff. 2-1-12; CR 18-067: cr. (7c), (14m), (45e) Register June 2019 No. 762, eff. 7-1-19; CR 20-088: am. (intro.), renum. (1) to (1m), cr. (1d), (1h), (3g), (3r), (4g), (4r), (10m), (12o), (12q), (15m), (19f), (19v), (19x), (20q), (20u), (20y), (21d), (21j), (25g), (25r), (32m), (34d), (34v), (36m), (38m), (41e), (41m), (41s), (42d), (42h), (42s), (45s), (53j), (53k), (54a), (54b), (54c), (54d), (54e), (54f), (54g), (54h), (54i), (54j), (54k), (54L), renum. (54m) to (54p), cr. (54o), (54y), (57s), (58m), (61s), (63m), (64g), (64q), (64u), (65e), (65m), (65s), (66m), (74m), (75m), (80f), (86e), (86m), (86s), (87d), (87h), (87L), (93m), (95s), (100m), (104m), (106s), (109s) Register May 2022 No. 797, eff. 6-1-22; correction in (54g) (a) made under s. 35.17, Stats., Register May 2022 No. 797. NR 422.03NR 422.03 Exemptions. Sections NR 422.04 to 422.155 apply to any facility that contains one or more of the surface coating or printing process lines described in ss. NR 422.05 to 422.155, except as specified in this section. Exempt facilities are subject to the recordkeeping requirements of s. NR 439.04 (4). Exemptions include any of the following: 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:
