Tenn. Comp. R. & Regs. 1200-03-18-.20 - COATING OF MISCELLANEOUS METAL PARTS

(1) Applicability of this rule is as follows:

(a) This rule applies to any miscellaneous metal parts and products coating line.

(b) This rule does not apply:

1. To the coating of the following metal parts and products that are covered by other rules of this chapter:

(i) Automobiles and light-duty trucks;

(ii) Metal cans;

(iii) Flat metal sheets and strips in the form of rolls or coils;

(iv) Magnet wire for use in electrical machinery;

(v) Metal furniture; and

(vi) Large appliances.

2. To the coating operations in the following:

(i) Coating the exterior of completely assembled aircraft;

(ii) Coating the exterior of major aircraft subassemblies, if approved as revisions to the State Implementation Plan;

(iii) Automobile and truck refinishing;

(iv) Customized top coating of automobiles and trucks, if production is less than 35 vehicles per day;

(v) Coating the exterior of completely assembled marine vessels;

(vi) Coating the exterior of major marine vessel subassemblies if approved as revisions to the state implementation plan; and

(vii)

(Repealed)

3. With respect to the emission limits in this rule to any coating line within a facility:

(i) In Davidson, Rutherford, Sumner, Williamson, or Wilson County whose actual emissions without control devices from all miscellaneous metal parts and products coating lines within the facility are less than 6.8 kilograms (kg) (15 pounds [lb]) of volatile organic compounds (VOC's) per day or whose maximum theoretical emissions from all miscellaneous metal parts and products coating lines within the facility are less than 10 tons of volatile organic compounds (VOC's) per year;

(ii) In Hamilton or Shelby County whose potential VOC emissions from all miscellaneous metal parts and products coating lines within the facility are less than 25 tons of volatile organic compounds (VOC's) per year; or

(iii) In any other county whose potential VOC emissions from all miscellaneous metal parts and products coating lines within the facility are less than 100 tons of volatile organic compounds (VOC's) per year.

(c) In lieu of satisfying the standards and requirements of this rule, the owner or operator of a heavy-duty truck electrodeposition prime coat operation shall satisfy the standards and requirements of Rule .11 of this chapter for that operation.

(2) For the purpose of this rule, the following definitions apply:

(a) "Air-dried coating" means a coating that is dried by the use of air or forced warm air at temperatures up to 90°C (194°F).

(b) "Clear coating" means a coating that:

1. Either lacks color and opacity or is transparent; and

2. Uses the surface to which it is applied as a reflective base or undertone color.

(c) "Drum" means any cylindrical metal shipping container of 13- to 110-gallon capacity.

(d) "Extreme environmental conditions" means any of the following: the weather all of the time, temperatures frequently above 95°C (203°F), detergents, abrasive and scouring agents, solvents, corrosive atmospheres, or similar environmental conditions.

(e) "Extreme performance coatings" means coatings intended for exposure to extreme environmental conditions.

(f) "Heavy-duty truck touch-up" means air-dried coatings used to repair scratches and/or blemishes in the coating of newly manufactured heavy-duty trucks.

(g) "High performance architectural coating" means a coating:

1. Applied to extruded aluminum architectural subsections intended for use on exteriors of buildings of more than one story;

2. Satisfying the Architectural Aluminum Manufacturer's Association publication number AAMA 605.2-1980; and

3.

(Repealed).

(h) "Miscellaneous metal parts and products coating line" means a coating line in which a coating is applied to any miscellaneous metal parts and products.

(i) "Miscellaneous metal parts and products" means any metal part or metal product, even if attached to or combined with a nonmetal part or product. Miscellaneous metal parts and products include, but are not limited to:

1. Large farm machinery (harvesting, fertilizing and planting machines, tractors, combines, etc);

2. Small farm machinery (lawn and garden tractors, lawn mowers, rototillers, etc.);

3. Small appliances (fans, mixers, blenders, crock pots, dehumidifiers, vacuum cleaners, etc.);

4. Commercial machinery (office equipment, computers and auxiliary equipment, typewriters, calculators, vending machines, etc.);

5. Industrial machinery (pumps, compressors, conveyor components, fans, blowers, transformers, etc.);

6. Fabricated metal products (metal covered doors, frames, etc.);

7. Any other industrial category that coats metal parts or products under the Standard Industrial Classification Codes of Major Group 33 (primary metal industries), Major Group 34 (fabricated metal products), Major Group 35 (nonelectric machinery), Major Group 36 (electrical machinery), Major Group 37 (transportation equipment), Major Group 38 (miscellaneous instruments), and Major Group 39 (miscellaneous manufacturing industries); and

8. Application of underbody antichip materials (e.g., underbody plastisol) and coating application operations other than prime, primer surface, topcoat, and final repair operations at automobile and light-duty truck assembly plants.

(j) "Pail" means any cylindrical metal shipping container of 1- to 12-gallon capacity and constructed of 29-gauge and heavier material.

(k) "Refinishing" means the repainting of used equipment.

(3) Standards as follow apply:

(a) No owner or operator of a miscellaneous metal parts and products coating line subject to this rule may cause or allow the application of any coating with VOC content in excess of the emission limits in Subparagraph (b) of this paragraph.

(b) If more than one emission limit in this subparagraph applies to a specific coating, then the least stringent emission limit shall be applied.

	a kg/L	a lb/gal
1. High performance architectural coating	0.75	6.2
2. Heavy-duty truck touch-up	0.58	4.8
3. Clear coating	0.52	4.3
4. Steel pail and drum interior	0.52	4.3
5. Air-dried coating	0.42	3.5
6. Extreme performance coating	0.42	3.5
7 All other coatings	0.36	3.0

a VOC content values are expressed in units of mass of VOC (kg, lb) per volume of coating (liter [L], gallon [gal]), excluding water and/or exempt compounds, as applied.

(c) As an alternative to compliance with the emission limits in Subparagraph (b) of this paragraph, an owner or operator of a miscellaneous metal parts and products coating line may meet the requirements of Paragraphs (4) or (5) of this rule.

(4) No owner or operator of a miscellaneous metal parts and products coating line that applies multiple coatings during the same day shall apply coatings on that line during any day whose weighted average VOC content exceeds the weighted average VOC content limit calculated using VOC content factors from Subparagraph (3)(b) of this rule.

(5) Control device requirements as follow apply:

(a) An owner or operator of a miscellaneous metal parts and products coating line subject to this rule may comply with this rule by:

1. Installing and operating a capture system and a control device on that line;

2. Determining for each day the overall emission reduction efficiency needed to demonstrate compliance. The overall emission reduction needed is the lesser of the value calculated according to the procedure in this chapter or 95 percent; and

3. Demonstrating each day that the overall emission reduction efficiency achieved is greater than or equal to the overall emission reduction efficiency required.

(b) An owner or operator of a miscellaneous metal parts and products coating line subject to this rule shall ensure that:

1. A capture system and control device are operated at all times that the line is in operation, and the owner or operator demonstrates compliance with this rule through the applicable coating analysis and capture system and control device efficiency test methods specified in this chapter, and;

2. The control device is equipped with the applicable monitoring equipment specified in this chapter, and the monitoring equipment is installed, calibrated, operated, and maintained according to the vendor's specifications at all times the control device is in use.

Notes

Tenn. Comp. R. & Regs. 1200-03-18-.20

Original rule filed May 15, 1979; effective July 10, 1979. Amendment filed March 23, 19891; effective May 7, 1981. Amendment filed April 23, 1992; effective June 7, 1992. Repeal and new rule filed March 8, 1993; effective April 22, 1993. Amendment filed July 27, 1995; effective October 9, 1995. Amendment filed November 12, 1998; effective January 26, 1999.

Authority: T.C.A. §§ 4-5-201 et.seq. and 68-201-105.