SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-1 RULE 463 WOOD PRODUCTS COATINGS (Adopted 09-05-96) (Amended 12-5-96, 7-23-98, 9-25-08)

INDEX

100 GENERAL 101 PURPOSE 102 APPLICABILITY 103 SEVERABILITY 110 EXEMPTIONS

200 DEFINITIONS 201 AEROSOL-SPRAY CONTAINER 202 AFFECTED POLLUTANT 203 BINDERS 204 CAPTURE EFFICIENCY 205 CLEANUP MATERIAL 206 CLEAR TOPCOAT 207 CLOSED CONTAINER 208 COATING 209 CONTROL EFFICIENCY 210 CONVERSION VARNISH 211 DIP COAT 212 ELECTROSTATIC APPLICATION 213 EMISSIONS UNIT 214 ENCLOSED GUN CLEANER 215 EXEMPT COMPOUND 216 FILLER 217 FLOW COAT 218 HIGH-SOLIDS STAINS 219 HIGH-VOLUME, LOW-PRESSURE (HVLP) 220 HISTORICAL REPRODUCTION COATING 221 INK 222 LOW-SOLIDS STAINS 223 LOW-VOLUME, LOW-PRESSURE (LVLP) EQUIPMENT 224 MAJOR STATIONARY SOURCE OF VOC 225 MOLD-SEAL COATING 226 MULTI-COLORED COATING 227 NEW WOOD PRODUCT 228 PIGMENTED COATINGS 229 REACTIVE DILUENT 230 REFINISHING OPERATION 231 REPAIR COATING 232 ROLL COATER 233 SEALER 234 STENCIL COATING 235 STRIPPER 236 SURFACE PREPARATION MATERIAL 237 TONER 238 TOUCH-UP COATING 239 VOLATILE ORGANIC COMPOUND (VOC) 240 VOLATILE ORGANIC COMPOUND COMPOSITE PARTIAL VAPOR PRESSURE 241 WASH COAT 242 WOOD PANEL 243 WOOD PRODUCTS 244 WOOD PRODUCT COATING APPLICATION OPERATIONSSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-2 September 25, 2008 300 STANDARDS 301 APPLICATION EQUIPMENT REQUIREMENTS 302 VOC CONTENT OF COATINGS FOR NEW WOOD PRODUCTS 303 VOC CONTENT OF COATINGS FOR REFINISHING, REPAIRING, PRESERVING, OR RESTORING WOOD PRODUCTS 304 VOC CONTENT FOR STRIPPERS 305 EMISSION CONTROL EQUIPMENT 306 EMISSIONS AVERAGING PROVISIONS 307 EMISSIONS AVERAGING PLAN 308 REQUIREMENTS FOR SURFACE PREPARATION AND CLEANUP MATERIALS

400 ADMINISTRATIVE REQUIREMENTS 401 LABELING REQUIREMENTS: VOC CONTENT 402 CALCULATION FOR DETERMINING VOLATILE ORGANIC COMPOUND COMPOSITE PARTIAL VAPOR PRESSURE 403 CALCULATION FOR DETERMINING WEIGHT OF VOC PER VOLUME OF COATING, LESS WATER AND LESS EXEMPT COMPOUNDS 404 CALCULATION FOR DETERMINATION OF VOC CONTENT PER VOLUME OF MATERIAL 405 CALCULATION FOR DETERMINATION OF POUNDS OF VOC PER POUND OF SOLIDS 406 OPERATION AND MAINTENANCE PLAN

500 MONITORING AND RECORDS 501 USAGE RECORDS 502 DURATION OF RECORDS 503 TEST METHODSSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-3 100 GENERAL

101 PURPOSE: To establish limits on the emission of volatile organic compounds (VOC) from coatings and strippers used on wood products, and from products used in surface preparation and cleanup.

102 APPLICABILITY: This rule applies to any person who uses, manufactures, blends, sells, repackages, distributes, or specifies the use of wood products coatings, and/or strippers for use within the District. The requirements of Rule 441 - ORGANIC SOLVENTS shall not apply to operation subject to this rule.

103 SEVERABILITY: If any section, subsection, sentence, cl ause, phrase, or portion of this rule is, for any reason, held invalid, unconstitutional , or unenforceable by any court of competent jurisdiction, such portion shall be deemed as a separate, distinct, and independent provision, and such holding shall not affect the validity of the remaining portions thereof.

110 EXEMPTIONS: 110.1 Sources using less than 55 gallons per year, (singly or in any combination) of wood products coatings and/or strippers, are exempt from all provisions of this rule with the exception of Section 501 - USAGE RECORDS. 110.2 Wood products coatings that are sold in non-refillable aerosol-spray containers. 110.3 Coating operations for the purpose of manufacturing a fini shed wood panel intended for attachment to the inside walls of buildings, including, but not limited to, homes and office buildings, mobile homes, trailers, prefabricated buildings and similar structures; or a finished exterior wood siding intended for use in construction. 110.4 Coating of architectural components or structures not coated in a shop environment, which are regulated by Rule 442 - Architectural Coatings.

200 DEFINITIONS

201 AEROSOL-SPRAY CONTAINER: Any hand-held, pressurized, non-refillable container of 1 liter (1.1 quarts) or less, where the contents are released when a valve on the container is depressed.

202 AFFECTED POLLUTANT: Volatile organic compounds (VOC), as defined in Section 239.

203 BINDERS: Non-volatile polymeric organic materials (resins) which form the surface film in coating applications.

204 CAPTURE EFFICIENCY: Expressed in percent, capture efficiency is the ratio of the weight of the VOC in the effluent stream entering a control device to the weight of the VOC emitted from wood product coating operations, both measured simultaneously, and can be calculated by the following equation:



### 100 Efficiency Capture × =

e c 

### W W

Where: W c = Weight of VOC entering the control device W e = Weight of VOC emitted

205 CLEANUP MATERIAL: A VOC-containing material used to clean application equipment used in wood products coating operations.

206 CLEAR TOPCOAT: A final coating which contains binders, but not opaque pigments, and is specifically formulated to form a transparent or translucent solid protective film.

207 CLOSED CONTAINER: A container which has a cover where the cover meets with the mainSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-4 September 25, 2008 body of the container without any gaps between the cover and the main body of the container.

208 COATING: A material which is applied to a surface and which forms a film in order to beautify and/or protect such surface. "Coating" includes, but is not limited to, materials such as topcoats, stains, sealers, fillers, conver sion varnish, pigmented coating, multicolored coating, moldseal coating, washcoat, and toner.

209 CONTROL EFFICIENCY: Expressed in percent, control efficiency is the ratio of the weight of the VOC removed by the control device from the effluent stream entering the control device to the weight of VOC in the effluent stream entering the control device, both measured simultaneously. Control efficiency is calculated by the following equation: 

# ( ) 100 Efficiency Control × −

=

c a c 

### W W W

Where: W c = Weight of VOC entering the control device W a = Weight of VOC discharged from the control device

210 CONVERSION VARNISH: A coating comprised of a homogeneous (alkyd-amino resin) liquid which, when acid catalyzed and appli ed, hardens upon exposure to air or heat, by evaporation and polymerization, to form a cont inuous film that imparts protective or decorative properties to wood surfaces. W hen used as a combined sealer/topcoat system, conversion varnish shall not be subject to the VOC limit for sealers, as specified in section 302.

211 DIP COAT: A coating which is applied by dipping an object into a vat of coating material and allowing any excess coating material to drain off.

212 ELECTROSTATIC APPLICATION: The electrical charging of atomized coating droplets for deposition by electrostatic attraction.

213 EMISSIONS UNIT: An identifiable operation or piece of process equipment such as an article, machine, or other contrivance which controls, emits, may emit, or results in the emissions of any affected pollutant directly or as fugitive emissions.

214 ENCLOSED GUN CLEANER: 214.1 A device that is used for the cleaning of spray guns, pots and hoses, that has an enclosed solvent container, is not open to the ambient air when in use, and has a mechanism to force the cleanup material through the gun while the cleaner is in operation; or 214.2 A device that is used for the cleaning of spray guns, pots and hoses, that has an enclosed solvent container, uses non-atom ized solvent flow to flush the spray equipment and collects and returns the discharged solvent to the enclosed container.

215 EXEMPT COMPOUND: For the purposes of this rule, “exempt compound” has the same meaning as in Rule 101-GENERAL PROVISIONS AND DEFINITIONS

216 FILLER: A preparation used to fill in cracks, grains, etc., of wood before applying a coating.

217 FLOW COAT: A coating which is applied by flowi ng a stream of coating over an object and allowing any excess coating material to drain off.

218 HIGH-SOLIDS STAIN: Stains containing more than 454 grams (1 pound) of solids per 3.785 liters (1 gallon), by weight, and can include wiping stains, glazes, and opaque stains.

219 HIGH-VOLUME, LOW-PRESSURE (HVLP): Equipment used to apply coatings by means ofSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-5 a gun which is designed to be operated and whic h is operated between 0.1 and 10 psig air pressure measured dynamically at the center of the air cap and at the air horns.

220 HISTORICAL REPRODUCTION COATING: A coating applied to an antique wood product produced in the nineteenth century or earlier, for the purpose of restoring the product to a historically accurate finish.

221 INK: A fluid that contains dyes and/or colorants and is used to make markings, but not to protect surfaces.

222 LOW-SOLIDS STAINS: Stains containing 454 grams (1 pound) or less of solids per 3.785 liters (1 gallon) or less, by weight.

223 LOW-VOLUME, LOW-PRESSURE (LVLP) EQUIPMENT: Spray coating application equipment with air pressure between 0.1 and 10.0 pounds per square inch gauge (psig) and air volume less than 15.5 cfm per spray gun and which operates at a maximum fluid delivery pressure of 50 psig.

224 MAJOR STATIONARY SOURCE OF VOC : For the purpose of this rule, a major stationary source of VOC is a stationary source with a pot ential to emit exceeding 25 tons per year of volatile organic compounds or with a potential to emit exceeding the major stationary source thresholds that are listed in Title I of the Federal Clean Act for volatile organic compounds which correspond to the nonattainm ent designation of the District. The fugitive emissions of a source shall not be considered in determining w hether it is a major stationary source, unless the source belongs to a category regulated by a standard promulgated under Section 111 or 112 (42 U.S.C. Section 7411 of 7412) of the Federal Clean Air Act, but only with respect to those air pollutants that have been regulated for that category.

225 MOLD-SEAL COATING: The initial coating applied to a new mold or repaired mold to provide a smooth surface which, when coated with a mold release coating, prevents products from sticking to the mold.

226 MULTI-COLORED COATING: A coating which exhibits more than one color when applied, and which is packaged in a single container and applied in a single coat.

227 NEW WOOD PRODUCT: A wood product which has not been previously coated. A wood product from which uncured coatings have been remo ved to repair flaws in initial coatings applications is a new wood product.

228 PIGMENTED COATINGS: Opaque coatings which contain binders and colored pigments which are formulated to hide the wood surface, either as an undercoat or topcoat.

229 REACTIVE DILUENT: A liquid component of a coating which is a VOC during application, and one in which, through chemical or physical reactions, such as polymerization, becomes an integral part of a finished coating.

230 REFINISHING OPERATION: The steps necessary to remove cured coatings and to repair, preserve, or restore a wood product.

231 REPAIR COATING: A coating used to recoat portions of a product which has sustained mechanical damage to the coating following normal coating operations.

232 ROLL COATER: A series of mechanical rollers that forms a thin coating film on the surface of the roller, which is applied to a substrate by moving the substrate underneath the roller.

233 SEALER: A coating, containing binders, which seals the wood prior to application of subsequent coatings.SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-6 September 25, 2008 234 STENCIL COATING: An ink or a pigmented coating which is rolled or brushed onto a template or stamp in order to add identifying letters and/or numbers to wood products.

235 STRIPPER: A liquid used to remove cured coatings, cured inks, and/or cured adhesives.

236 SURFACE PREPARATION MATERIAL: A VOC-containing material applied to the surface of any wood product, prior to the application of coatings, to clean the wood product or to promote the adhesion of subsequent coatings.

237 TONER: A wash coat which contains binders and dyes or pigments to add tint to a coated surface.

238 TOUCH-UP COATING: A coating used to cover minor coating imperfections appearing after the main coating operation.

239 VOLATILE ORGANIC COMPOUND (VOC): For the purposes of this rule, “volatile organic compound” has the same meaning as in Rule 101- GENERAL PROVISIONS AND DEFINITIONS.

240 VOLATILE ORGANIC COMPOUND COMPOSITE PARTIAL VAPOR PRESSURE: The sum of the partial pressures of compounds defined as VOCs.

241 WASH COAT: A coating that is used to seal w ood surfaces, preventing undesired staining,and control penetration. For the purpose of this rule, washcoats shall be considered lowsolids coatings and shall contain less than 454 grams (1 pound) of solids per 3.785 liters (1 gallon), by weight. Wash coats with greater than 454 grams (1 pound) of solids per 3.785 liters (1 gallon), by weight, shall be considered sealers.

242 WOOD PANEL: Any piece of wood or wood composition, which is solid or laminated, and which is larger than 10 square feet in size, and which is not subsequently cut into smaller pieces.

243 WOOD PRODUCTS: Surface-coated products which include cabinets (kitchen, bath, and vanity), tables, chairs, beds, sofas, shutters , art objects, and any other coated objects made of solid wood, and/or wood composition.

244 WOOD PRODUCT COATING APPLICATION OPERATIONS: A combination of coating application steps which may include use of sp ray guns, flash-off areas, spray booths, ovens, conveyors, and/or other equipment operated for the purpose of applying coating materials.

300 STANDARDS

301 APPLICATION EQUIPMENT REQUIREMENTS: A person subject to the provisions of this rule shall not apply any wood product coati ng to any wood products, unless one of the following application methods is used: 301.1 Electrostatic application equipment 301.2 High Volume Low Pressure spray equipment 301.3 Dip coat 301.4 Flowcoat 301.5 Hand application methods, such as brush or roller 301.6 Roll coater 301.7 Low Volume Low Pressure spray equipment 301.8 Air assisted airless, for touch-up and repair only 301.9 Any other equivalent method which has been approved in writing by the Air Pollution Control Officer and the U.S. Environmental Protection AgencySACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-7 302 VOC CONTENT OF COATINGS FOR NEW WOOD PRODUCTS: Except as provided in Sections 110, 305, and 306 no person shall apply any coating, to a new wood product, which has a volatile organic compound (VOC) content as applied exceeding the applicable limits specified below. The VOC content of coatings, except low-solid stains, toners, and washcoats, shall be determined in accordance with Sections 403 and 503.1. The VOC content of low-solid stains, toners and washcoats shall be determined in accordance with Sections 404 and 503.1. 302.1 If emission averaging is not used to achi eve compliance with this section, VOC limits expressed in grams per liter shall be used. 302.2 If emission averaging is used to achieve compliance with this section, VOC limits expressed in pounds of VOC per pound of solids shall be used, except for low-solids stains, toners, and washcoats, for which VOC limits expressed in grams per liter shall be used.

COATING VOC LIMITSGrams Per Liter of Coating (lbs-VOC/lbssolids) Less water and Less Exempt Compounds Clear Topcoats 275 (0.35) Conversion Varnish (when used as a combined sealer/topcoat system) 550 (1.20)

Filler 275 (0.18) High-Solid Stain 350 (0.42) Inks 500 (0.96) Mold-Seal Coating 750 (4.20) Multi-Colored Coating 275 (0.33) Pigmented Coating 275 (0.25) Sealer 275 (0.36)

COATING VOC LIMITS Grams Per Liter (lbs/gal) of Material Low-Solid Stains, Toners, Washcoats 120 (1.00)

303 VOC CONTENT OF COATINGS FOR REFINISHING, REPAIRING, PRESERVING, OR RESTORING WOOD PRODUCTS: Except as provided in Sections 110, 305, and 306 no person shall apply any coating, to refinish, r epair, preserve, or rest ore a wood product, which has a volatile organic compound (VOC) content exceeding the applicable limits specified below. The VOC content of coatings, except low-solid stains, toners, and washcoats, shall be determined in accordance with Sections 403 and 503.1. The VOC content of low-solid stains, toners and washcoats shall be determined in accordance with Sections 404 and 503.1. 303.1 If emission averaging is not used to achiev e compliance with this section, VOC limits expressed in grams per liter shall be used. 303.2 If emission averaging is used to achieve compliance with this section, VOC limits expressed in pounds of VOC per pound of solids shall be used, except for low-solids stains, toners, and washcoats, for which VOC limits expressed in grams per liter shall be used.SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-8 September 25, 2008 COATING VOC LIMITS Grams Per Liter of Coating (lbs-VOC/lbs-solids) Less water and Less Exempt Compounds Clear Topcoats 680 (2.5) Conversion Varnish 550 (1.20) Filler 500 (0.96) High-Solid Stain 700 (2.57) Inks 500 (0.96) Mold-Seal Coating 750 (4.20) Multi-Colored Coating 680 (2.60) Pigmented Coating 600 (1.60) Sealer 680 (2.5)

COATING VOC LIMITS Grams Per Liter (lbs/gal) of Material Low-Solid Stains, Toners, Washcoats 480 (4.00)

304 VOC CONTENT FOR STRIPPERS: A person shall not use a stripper on wood products unless: 304.1 it contains less than 350 grams of VOC per liter of material; or 304.2 the VOC composite partial vapor pressure is 2 mm Hg (0.04 psia) or less at 20 o C (68 o F), as calculated pursuant to Section 402.

305 EMISSION CONTROL EQUIPMENT: 305.1 As an alternative, a person may comply with the VOC limits specified in Sections 302, 303, and 304, by using an approved air po llution control system consisting of capture and control devices, which reduces VOC emissions from the application of wood products coatings or strippers by an equivalent or greater amount than the limits specified in Sections 302, 303, and 304, with the written approval of the Air Pollution Control Officer. The minimum required overall capture and control efficiency of an emission system at which an equivalent or greater level of VOC reduction will be achieved, shall be calculated by the following equation:



### 100

1 1

1

. . × ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

− ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

−

×

− =

c LWc nMax

WnMax

LWnMax

LWc



### D VOC

D VOC

VOC

VOC E C

Where: C.E. = Overall Control Efficiency, percent. VOC LWc = VOC Limit of Rule 463, less water and less exempt compounds, pursuant to Sections 302, 303, and/or 304. VOC LWn,Max = Maximum VOC content of non-compliant coating used in conjunction with a control device, less water and less exempt compounds. D n,Max = Density of solvent, reducer, or thinner contained in the non-compliant coating, containing the maximum VOC content of the multicomponent coating.SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-9 D c = Density of corresponding solvent, reducer, or thinner used in the compliant coating system = 880 g/L. 305.2 The capture system shall vent all dryi ng oven exhaust to the c ontrol device and shall have one or more inlets for collection of fugitive emissions; and 305.3 During any period of operation of a thermal incinerator, combustion temperature shall be continuously monitored; and 305.4 During any period of operation of a catalytic incinerator, exhaust gas temperature shall be continuously monitored; and 305.5 Written approval for the use of such equipment is obtained from the Air Pollution Control Officer prior to installation or use of the equipment.

306 EMISSIONS AVERAGING PROVISIONS: 306.1 For historical reproduction coatings only, and not at a major stationary source of VOC, a person may comply with the provisions of Section 303 by using an averaging approach for a maximum of 20 gallons per y ear of historical reproduction coatings used at the facility, provided that all requirements of this Section are met. a. A person using the provisions of this Section for compliance shall demonstrate that emissions from t he coatings being averaged, on pounds of VOC per pounds of solids basis, on a rolling 30-day basis, are less than or equal to the allowable emissions, based on the following:



# () () 

# ∑ ∑

=

= 

### ≥ n

i i i n

i i i 

### U ER U VOC

1 1

Where: VOC i = VOC content limit of coating “I” (grams of VOC per liter of material for low solids coatings and pounds of VOC per pound of solids for all other coat ings, as required in Section 303). U i = Usage of coating “I” (liters of material for low-solids coatings, and pounds of solids for all other coatings), and Er i = Actual VOC content of coating “I”, as applied (grams per liter for low-solids materials and pounds of VOC per pounds of solids for all other coatings). b. Any wood product coating not included in the emissions averaging shall comply with the VOC limits in Sections 302, 303, or 304. 306.2 If a stationary source does not satisfy the demonstration requirement in Section 306.1(a) at any time during a rolling 30-day period, the stationary source has exceeded Section 306.1(a) on every day of the rolling 30-day period.

307 EMISSIONS AVERAGING PLAN: 307.1 A person wanting to use emissions aver aging to achieve compliance with this rule shall submit an Emissions Averaging Plan (“P lan”) for approval by the Air Pollution Control Officer. The Plan may not be implemented until it is approved, in writing, by the Air Pollution Control Officer. Submitta l of a Plan does not provide an exemption from the requirements of this rule. The Plan must be resubmitted, for approval by the Air Pollution Control Officer on an annual basis. If the Plan is not approved, emissions averaging will not be permitted. 307.2 The Plan shall include, at a minimum: a. A description of the wood product coatings to be included in the averaging program, and b. A description of the quantification and record keeping for coating usage, coating VOC and solids content, VOC emissions, and calculations to show compliance with Section 306.

308 REQUIREMENTS FOR SURFACE PREPARATION AND CLEANUP MATERIALS: Any person subject to this rule shall comply with the following requirements:SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-10 September 25, 2008 308.1 Until September 25, 2009, spray gun nozzl es only, may be soaked in solvent-based materials for cleaning, provided the container (not to exceed five (5) gallons in size) is kept tightly covered at all times except when accessing the container. 308.2 Closed containers shall be used for the di sposal of cloth or paper used for surface preparation, cleanup, and coating removal. 308.3 VOC-containing materials shall be stored in containers, which are closed when not in use, and shall be disposed of in a manner that the VOC are not emitted into the atmosphere. 308.4 Until September 25, 2009, a person shall not use solvent-based VOC-containing materials for the cleanup of spray equi pment used in wood products coating application operations, unless the spray equipment is disassembled and cleaned in an enclosed gun cleaner. 308.5 Prior to September 25, 2009, a person shall not perform surface preparation or cleanup with a material containing VOC in excess of 200 grams per liter (1.67 pounds per gallon). 308.6 Effective September 25, 2009, a person shall not perform surface preparation or cleanup with a material containing VOC in excess of 25 grams per liter (0.21 pounds per gallon).

400 ADMINISTRATIVE REQUIREMENTS

401 LABELING REQUIREMENTS: VOC CONTENT: Each container of any coating, surface preparation material, or cleanup material, or st ripper shall display its maximum VOC content of the coating, as applied, and after any th inning as recommended by the manufacturer, or shall have this information provided in a product data sheet supplied with the container. VOC content shall be displayed as grams of VOC per liter of coating (less water and less exempt solvent, and excluding any colorant added to tint bases), surface preparation and cleanup material, or stripper. VOC content displa yed may be calculated using product formulation data, or may be determined using the test method in Section 503.1. Alternatively, containers for strippers subject to the provisions of Section 304 may display only the partial vapor

pressure.

402 CALCULATION FOR DETERMINING VOLATILE ORGANIC COMPOUND COMPOSITE PARTIAL VAPOR PRESSURE . VOC composite partial vapor pressure for Determination of compliance with Section 304 shall be calculated by the following equation:



# ( )( )



# ∑ ∑

=

=



### +

+ = n

i i i

e e

w w n

i i i i

c



### MW W

MW

W

MW

W MW VP W

PP

1 1

Where: Pp c = VOC composite partial pressure at 20 o C, in mm Hg. W i = Weight of the "I" th VOC compound, in grams. W w = Weight of water, in grams. W e = Weight of exempt compounds, in grams. Mw i = Molecular weight of the "I" th VOC compound, in (g/gmole). Mw w = Molecular weight of water, in (g/g-mole). Mw e = Molecular weight of exempt compound, in (g/g-mole). Vp i = Vapor pressure of the "I" th VOC compound at 20 o C, in mm Hg.

403 CALCULATION FOR DETERMINING WEIGHT OF VOC PER VOLUME OF COATING, LESS WATER AND LESS EXEMPT COMPOUNDS : The weight of VOC per combined volume of VOC and coating solids shall be calculated by the following equation:SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-11 ec w m ec w v 

### V V V W W W G

− − − −

= 1

Where: G1 = Weight of VOC per volume of coating, less water and less exempt compounds. W v = Weight of volatile compounds, in grams. W w = Weight of water, in grams. W ec = Weight of exempt compounds, in grams. V m = Volume of coating material, in liters. V w = Volume of water, in liters. V ec = Volume of exempt compounds, in liters.

404 CALCULATION FOR DETERMINATION OF VOC CONTENT PER VOLUME OF MATERIAL: The volume of material is defined as the volume of the original material, plus any VOC-containing material added to the original material. The original material is the material before any VOC-containing material such as solvent is added for purposes of mixing or thinning. The VOC content shall exclude any colorant added to a tintbase. The weight of VOC per total volume of material shall be calculated by the following equation: 

# ( )

m ec w v 

### V W W W

− −

Where: W v = Weight of all volatile compounds. W w = Weight of water. W ec = Weight of compounds listed as exempt in Section 215 from the definition of VOC. V m = Volume of material.

405 CALCULATION FOR DETERMINATION OF POUNDS OF VOC PER POUND OF SOLIDS: 405.1 Pounds of VOC per pound of solids is the weight of VOC per weight of coating solids within any given volume of coating, and can be calculated by the test method found in Section 503.2 and the following equation:

r es w s 

### W W W W

− −

= 

### Solids of Pound per VOC of Pounds

Where: W s = Weight of Volatile compounds in pounds W w = Weight of water in pounds W es = Weight of exempt compounds in pounds W r = Weight of coating solids in pounds 405.2 For coatings that contain reactive d iluents, the VOC content of the coating is determined after curing. The pounds of VOC per pound of coating solids shall be calculated by the test method found in Section 503.7 and the following equation:

r es w s 

### W W W W

− −

= 

### Solids of Pound per VOC of Pounds

Where: W s = Weight of Volatile compounds in pounds, emitted into the atmosphere during curing W w = Weight of water in pounds, emitted into the atmosphere during curing W es = Weight of exempt compounds in pounds, emitted into the atmosphere during curing W r = Weight of coating solids in pounds, prior to reactionSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-12 September 25, 2008 406 OPERATION AND MAINTENANCE PLAN (“O&M Plan”): Any person using an approved emission control device pursuant to Section 305 as a means of complying with this rule must submit, with the application for Authority to Construct, pursuant to Rule 201 - GENERAL PERMIT REQUIREMENTS, an O&M Plan for the em ission control device to the Air Pollution Control Officer for approval. O&M Plans for emissi on control devices installed as of prior to the adoption of this rule, if not previously s ubmitted, must be submitted by 7-1-97 and receive approval of the Air Pollution Control Officer. Each O&M Plan shall specify operation and maintenance procedures which will demonstrate continuous operation of the emission control device during periods of emissions-producing oper ations. Each O&M Plan shall also specify which records must be kept to document these operations and maintenance procedures. These records shall comply with the requirements of Section 501. An O&M Plan shall be implemented upon approval of the Air Pollution Control Officer.

500 MONITORING AND RECORDS:

501 USAGE RECORDS: In addition to any applicable record keeping requirements of either Rule 202 - NEW SOURCE REVIEW, Rule 207 - TITLE V - FEDERAL OPERATING PERMIT PROGRAM, and Rule 209 - LIMITING POTENTIAL TO EMIT, or any other District rule which may be applicable, persons subject to this rule sh all maintain the following records in order to evaluate compliance: 501.1 a. A data sheet, material list, or invoice giving material name, manufacturer identification, material application, and VOC content; and b. Any catalysts, reducers, or other components used, and the mix ratio; and c. The applicable VOC limit from Section 302 or 303, and the actual VOC content of the wood product coating as applied. 501.2 a. For persons using coatings or materials which comply with the VOC limits specified in Sections 302, 303, and 304, records shall be maintained on a monthly basis, showing the type and volume of coatings, strippers and surface preparation and cleanup materials used. Coating type shall be designated according to the coating categories as listed in Sections 302, 303, and 304. b. For coatings used in emissions averaging pursuant to Section 306, daily records shall be maintained, showing the type and volume of coatings, strippers and surface preparation and cleanup materials used. c. If at any time a person uses coatings or materials exceeding the VOC limits specified in Sections 302, 303, and 304, records shall be maintained on a daily basis showing the type and volume of materials used. d. For persons using a collection and control system pursuant to Section 305, records shall be maintained on a daily basis, showing the type and volume of coatings and solvents used. 501.3 Any person using an emission control system pursuant to the provisions of Section 305, as a means of compliance with this rule, shall maintain daily records of key system operating and maintenance procedures which will demonstrate continuous operation and compliance of the emission c ontrol device during periods of emissionproducing activities. Key system operat ing parameters are those necessary to ensure compliance with the requirements of Section 305.

502 DURATION OF RECORDS: 502.1 Prior to September 25, 2010, all records required by this rule shall be maintained for at least three years, and shall be made available to the Air Pollution Control Officer upon request. 502.2 Effective September 25, 2010, all records required by this rule shall be maintained for at least five years, and shall be made av ailable to the Air Pollution Control Officer upon request.SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

September 25, 2008 463-13 503 TEST METHODS 503.1 DETERMINATION OF VOC CONTENT: VOC content of wood product coatings, strippers, and surface preparation and cleanup mate rials, subject to this rule, shall be determined in accordance with EPA Method 24 and Section 403 or 404 of this rule, as applicable. 503.2 DETERMINATION OF COMPOSITION OF VOC: The composition of VOC shall be as specified on the manufacturer's label or data sheet, or as determined by ASTM Method E260-96(2006), Standard Practice for Packed Column Gas Chromatography. 503.3 DETERMINATION OF COMPOUNDS EXEMPT FROM VOC DEFINITION: Compounds exempted from VOC definition, as listed in Section 215 of this rule, shall be determined in accordance with ASTM D-4457-02 (2008), or ARB Method 432. If any of the perfluorocarbons or volatile cyclic and linear methyl siloxanes are being claimed as exempt compounds, the person making the claim must state in advance which compounds are present, and the EPA-approved test method used to make the determination of these compounds. 503.4 DETERMINATION OF CAPTURE EFFICIENCY: Collection efficiency shall be determined in accordance with the U.S. EPA technical guideline document, “Guidelines for Determining Capture Effi ciency,” dated January 9, 1995. Individual capture efficiency test runs subject to U.S. EPA technical guidelines shall be determined by: a. Applicable U.S. EPA methods 204, 204A, 204B, 204C, 204E, and/or 204F;

or b. The South Coast Air Quality Management District “Protocol for Determination of Volatile Organic Compound (VOC) Capture Efficiency”; or c. Any other method approved by the U.S. EPA, the California Air Resources Board, and the Air Pollution Control Officer. 503.5 DETERMINATION OF CONTROL EFFICIENCY: Efficiency of control equipment shall be determined in accordance with EPA Method 18, 25, 25A, EPA Method 2 or 2C (whichever is applicable). 503.6 VAPOR PRESSURE: Vapor pressures may be obtained from standard reference texts or may be determined by ASTM D 2879-97 (2007). 503.7 VOLATILE CONTENT OF RADIATION CURABLE MATERIALS: Volatile content of radiation curable materials shall be obtained in accordance with ASTM Method D 5403-93 (2007). 503.8 MULTIPLE TEST METHODS: When more than one test method or set of test methods is specified for any testing, a vi olation of any requirement of this rule established by any one of the specified test methods or set of test methods shall constitute a violation of this rule.SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

463-14 September 25, 2008 

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