NR 440.74(1)(a)(a) The affected facility to which the provisions of this section apply is each coating operation and any onsite coating mix preparation equipment used to prepare coatings for the polymeric coating of supporting substrates.

NR 440.74(1)(b)(b) Any affected facility for which the amount of VOC used is less than 95 Mg per 12-month period is subject only to the requirements of subs. (5) (b), (8) (b) and (c). If the amount of VOC used is 95 Mg or greater per 12-month period, the facility is subject to all the requirements of this section. Once a facility has become subject to the requirements of this section it will remain subject to those requirements regardless of changes in annual VOC use.

NR 440.74(1)(c)(c) This section applies to any affected facility for which construction, modification or reconstruction begins after April 30, 1987, except for the facilities specified in par. (d).

NR 440.74(1)(d)(d) This section does not apply to the following:

NR 440.74(1)(d)1.1. Coating mix preparation equipment used to manufacture coatings at one plant for shipment to another plant for use in an affected facility or for sale to another company for use in an affected facility;

NR 440.74(1)(d)2.2. Coating mix preparation equipment or coating operations during those times they are used to prepare or apply waterborne coatings so long as the VOC content of the coating does not exceed 9% by weight of the volatile fraction;

NR 440.74(1)(d)3.3. Web coating operations that print an image on the surface of the substrate or any coating applied on the same printing line that applies the image.

NR 440.74(2)(a)(a) All terms used in this section not defined as follows have the meaning given to them in s. NR 440.02.

NR 440.74(2)(a)1.1. “Coating applicator” means any apparatus used to apply a coating to a continuous substrate.

NR 440.74(2)(a)2.2. “Coating mix preparation equipment” means all mixing vessels in which solvent and mixing vessels in which solvent and other materials are blended to prepare polymeric coatings.

NR 440.74(2)(a)3.3. “Coating operation” means any coating applicators, flashoff areas and drying ovens located between a substrate unwind station and a rewind station that coats a continuous web to produce a substrate with a polymeric coating. If the coating process does not employ a rewind station, the end of the coating operation is after the last drying oven in the process.

NR 440.74(2)(a)4.4. “Common emission control device” means a device controlling emissions from an affected coating operation as well as from any other emission source.

NR 440.74(2)(a)5.5. “Concurrent” means the period of time in which construction of an emission control device serving an affected facility is commenced or completed, beginning 6 months prior to the date that construction of the affected facility commences and ending 2 years after the date that construction of the affected facility is completed.

NR 440.74(2)(a)6.6. “Control device” means any apparatus that reduces the quantity of a pollutant emitted to the air.

NR 440.74(2)(a)7.7. “Cover” means, with respect to coating mix preparation equipment, a device that fits over the equipment opening to prevent emission of volatile organic compounds from escaping.

NR 440.74(2)(a)8.8. “Drying oven” means a chamber within which heat is used to dry a surface coating; drying may be the only process or one of multiple processes performed in the chamber.

NR 440.74(2)(a)9.9. “Equivalent diameter” means 4 times the area of an opening divided by its perimeter.

NR 440.74(2)(a)10.10. “Flashoff area” means the portion of a coating operation between the coating applicator and the drying oven where VOC begins to evaporate from the coated substrate.

NR 440.74(2)(a)11.11. “Natural draft opening” means any opening in a room, building or total enclosure that remains open during operation of the facility and that is not connected to a duct in which a fan is installed. The rate and direction of the natural draft across such an opening is a consequence of the difference in pressure on either side of the wall or barrier containing the opening.

NR 440.74(2)(a)12.12. “Nominal 1-month period” means a calendar month or, if established prior to the performance test, a similar monthly time period, for example, 30-day month or accounting month.

NR 440.74(2)(a)13.13. “Onsite coating mix preparation equipment” means those pieces of coating mix preparation equipment located at the same plant as the coating operation they serve.

NR 440.74(2)(a)14.14. “Polymeric coating of supporting substrates” means a web coating process that applies elastomers, polymers or prepolymers to a supporting web other than paper, plastic film, metallic foil or metal coil.

NR 440.74(2)(a)16.16. ‘Temporary enclosure‘ means a total enclosure that is constructed for the sole purpose of measuring the fugitive VOC emissions from an affected facility.

NR 440.74(2)(a)17.17. “Total enclosure” means a structure that is constructed around a source of emissions and operated so that all VOC emissions are collected and exhausted through a stack or duct. With a total enclosure, there will be no fugitive emission, only stack emissions. The drying oven itself may be part of the total enclosure.

NR 440.74(2)(a)18.18. “Vapor capture system” means any device or combination of devices designed to contain, collect and route solvent vapors released from the coating mix preparation equipment or coating operation.

NR 440.74(2)(a)19.19. “VOC in the applied coating” means the product of Method 24 VOC analyses or formulation data, if those data are demonstrated to be equivalent to Method 24 results, and the total volume of coating fed to the coating applicator.