August 20, 2009 

 

Placer County APCD 245 − 1 Rules and Regulations

RULE 245 SURFACE COATING OF METAL PARTS AND PRODUCTS

Adopted 12/11/08 

(Amended 8/20/09) 

CONTENTS

100 GENERAL

101 PURPOSE 

102 APPLICABILITY 

103 SEVERABILITY 

104 EXEMPTIONS - LOW MATERIAL USAGE 

105 EXEMPTIONS - SPECIFIC OPERATIONS AND COATINGS

200 DEFINITIONS 

201 ADHESIVE 

202 AEROSOL CONTAINER 

203 AEROSPACE VEHICLE 

204 AIR-DRIED COATING 

205 ALUMINUM COATING FOR WINDOW FRAMES AND DOOR FRAMES 

206 APPLICATION EQUIPMENT 

207 APPURTENANCES 

208 BAKED COATING 

209 CAMOUFLAGE COATING 

210 CLEANUP MATERIAL 

211 CLOSED CONTAINER 

212 CAN COATING 

213 COATING 

214 COATING REMOVER 

215 COILS 

216 CONFORMAL COATING 

217 CURED MATERIAL 

218 DIP COAT 

219 ELECTRICAL INSULATING COATING 

220 ELECTRICAL INSULATING VARNISH 

221 ELECTROCOATING 

222 ELECTROSTATIC APPLICATION 

223 ENCLOSED GUN WASHER 

224 ETCHING FILLER 

225 EXEMPT COMPOUNDS 

226 EXTREME HIGH GLOSS COATING 

227 EXTREME PERFORMANCE COATING 

228 FLOW COAT 

229 HAND COATING 

230 HAND LETTERING 

231 HEAT-RESISTANT COATINGS 

232 HIGH PERFORMANCE ARCHITECTURAL COATING 

233 HIGH TEMPERATURE COATING 

234 HIGH VOLUME, LOW-PRESSURE SYSTEM (HVLP) APPLICATION EQUIPMENT 

235 IRIDESCENT COATING 

236 KEY SYSTEM OPERATING PARAMETER 

237 LOW VOLUME, LOW-PRESSURE SYSTEM (LVLP) APPLICATION EQUIPMENT 

238 MAGNETIC DATA STORAGE DISK 

239 MAINTENANCE CLEANING 

240 METAL PARTS AND PRODUCTS 
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Rules and Regulations 245 − 2 Placer County APCD

241 METALLIC COATING 

242 MILITARY SPECIFICATION 

243 MOLD-SEAL COATING 

244 MOTOR VEHICLE 

245 MULTI-COMPONENT COATING 

246 NON-ABSORBENT CONTAINER 

247 NON-SKID COATING 

248 ONE-COMPONENT COATING 

249 OPTICAL ANTI-REFLECTIVE COATING 

250 PAN BACKING COATING 

251 PERFORMANCE TEST 

252 POLYESTER RESIN MATERIALS 

253 POLYESTER RESIN OPERATIONS 

254 POWDER COATING 

255 PREFABRICATED ARCHITECTURAL COATING 

256 PRETREATMENT WASH PRIMER 

257 REPAIR COATING 

258 ROLL COATER 

259 SAFETY- INDICATING COATING 

260 SILICONE RELEASE COATING 

261 SOLAR-ABSORBENT COATING 

262 SOLID FILM LUBRICANT 

263 STATIONARY SOURCE 

264 STENCIL COATING 

265 STRIPPER (OR COATING REMOVER) 

266 SURFACE PREPARATION 

267 TEXTURED FINISH 

268 TOUCH-UP COATING 

269 TRANSFER EFFICIENCY 

270 VACUUM-METALIZING COMPOUND 

271 VOLATILE ORGANIC COMPOUND (VOC) 

272 VOLATILE ORGANIC COMPOUND (VOC) AS APPLIED 

300 STANDARDS 

301 VOC CONTENT LIMITS OF COATINGS FOR METAL PARTS AND PRODUCTS 

302 APPLICATION METHODS 

303 SURFACE PREPARATION AND CLEAN-UP REQUIREMENTS 

304 WORK PRACTICE REQUIREMENTS 

305 EMISSION CONTROL EQUIPMENT 

400 ADMINISTRATIVE REQUIREMENTS 

401 PROHIBITION OF SPECIFICATION 

402 PRODUCT INFORMATION REQUIREMENTS FOR SELLERS 

403 DETERMINATION OF VOC CONTENT OF COATINGS, LESS WATER AND EXEMPT 

 COMPOUNDS 

404 DETERMINATION OF VOC CONTENT PER LITER OF COATING REMOVERS 

 (STRIPPERS), SURFACE PREPARATION MATERIALS AND CLEANUP MATERIALS 

405 OPERATION AND MAINTENANCE PLAN 

500 MONITORING AND RECORDS 

501 RECORDKEEPING 

502 VOC EMISSION THRESHOLD 

503 TEST METHODS 
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Placer County APCD Rules and Regulations 245 − 3 

100 GENERAL

101 PURPOSE: To limit the emission of volatile organic compounds from the application of 

coatings, coating removers (strippers), surface preparation materials, and cleanup materials 

in metal parts and products coating operations. 

102 APPLICABILITY: The provisions of this rule apply only to facilities located in Placer County. 

103 SEVERABILITY: If any section, subsection, sentence, clause, phrase, or portion of this rule 

is, for any reason, held invalid, unconstitutional or unenforceable by any court of competent 

jurisdiction, that portion shall be deemed as a separate, distinct, and independent provision, 

and the holding shall not affect the validity of the remaining portions of the rule. 

104 EXEMPTIONS, LOW USAGE OF MATERIALS EXCEEDING VOC CONTENT LIMITS: 

104.1 Low Usage of Non-Compliant Coating Materials: The provisions of this rule shall not 

apply to the VOC requirements of Sections 301 if (1) the total volume of such noncompliant coatings is less than 55 gallons per year, and (2) the requirements of 

Sections 401 and 501 are met. 

105 EXEMPTIONS, SPECIFIC OPERATIONS AND COATINGS: Except for recordkeeping 

requirements as specified in Section 501, the requirements of this rule shall not apply to: 

105.1 Coating of prefabricated architectural components or structures not coated in a shop 

environment and which are regulated by Rule 218, Architectural Coatings. 

105.2 Motor vehicles including automotive, truck and heavy equipment which are regulated 

by Rule 234, Automotive Refinishing Operations.

105.3 Coating of metal cans, which is regulated by Rule 223, Metal Container Coating. 

105.4 Adhesives and other materials which are regulated by Rule 235, Adhesives. 

105.5 Polyester resin operations which is regulated by Rule 243, Polyester Resin

Operations. 

105.6 Coatings sold in non-refillable aerosol containers having a capacity of 1 liter (1.1 

quarts), or less. 

105.7 Powder coatings. 

105.8 Partial exemptions: 

105.8.1 Coating operations used for repair and touchup are only exempt from the 

application method requirements of Section 302. 

105.8.2 Coating operations used for stencil, safety indicating, solid film lubricating, 

electric insulating, thermal conduction, and magnetic data storage, are 

only required to meet the recordkeeping requirements of Section 501 and 

work practice requirements of Section 304. 

200 DEFINITIONS

201 ADHESIVE: Any substance that is used to bond one surface to another by attachment. 

202 AEROSOL CONTAINER: A hand-held, nonrefillable container which expels pressurized 

product ingredients by means of a propellant-induced force. 
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Rules and Regulations Placer County APCD 245 − 4 

203 AEROSPACE VEHICLE: The completed unit of any aircraft, helicopter, missile or space 

vehicle. 

204 AIR-DRIED COATING: Any coating which is not heated above 194oF (90oC) for the purpose 

of curing or drying. 

205 ALUMINUM COATING FOR WINDOW FRAMES AND DOOR FRAMES: A coating which is 

applied in a shop environment and is used to protect prefabricated aluminum window frames, 

window walls and door frames, and which is required to meet the specifications of 

Architectural Aluminum Manufacturers Association AAMA 605.2-1980. 

206 APPLICATION EQUIPMENT: A device used to apply coatings or used in preparing a 

coating material, such as stir sticks or funnels. 

207 APPURTENANCES: Accessories to a stationary structure, including, but not limited to: hand 

railings, cabinets, bathroom and kitchen fixtures, fences, rain-gutters and down-spouts, 

window screens, lamp-posts, heating and air conditioning equipment, other mechanical 

equipment, large fixed stationary tools and concrete forms. 

208 BAKED COATING: Any coating which is heated above 194o

F (90oC) for the purpose of 

curing or drying. 

209 CAMOUFLAGE COATING: A coating applied as a topcoat on equipment to conceal such 

equipment from detection. 

210 CLEANUP MATERIAL: A VOC-containing material used to clean parts and application 

equipment used in miscellaneous metal parts and products coating operations. 

211 CLOSED CONTAINER: A container whose cover meets with the main body of the container 

without any visible gaps between the cover and the main body of the container. 

212 CAN COATING: Any coating containing organic materials and applied or intended for 

application by spray, roller, or other means onto the interior and/or exterior of metal cans, 

drums, pails or lids. 

213 COATING: A material applied to a surface to identify, beautify, protect, convey a message, 

or minimize detection of such surface. Such materials include, but are not limited to paints, 

varnishes, sealers and stains. 

214 COATING REMOVER: (See STRIPPER, Section 265) 

215 COILS: Material sheets or strips which are rolled into coils for further industrial or 

commercial use. 

216 CONFORMAL COATING: A coating applied to electronic circuit boards or the assembled 

components for the purpose of moisture resistance, corrosion resistance, bacteria resistance, 

or fungi resistance. 

217 CURED MATERIAL: An adhesive, coating or ink that is dry to the touch.

218 DIP COAT: A coating method which is applied by dipping an object into a vat of coating 

material, and allowing any excess coating material to drain off. 

219 ELECTRICAL INSULATING COATING: A coating which is applied to electrical components 

expressly for the purpose of electrical insulation. 

220 ELECTRICAL INSULATING VARNISH: A varnish coating which is applied to electrical 

components. 
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Placer County APCD Rules and Regulations 245 − 5 

221 ELECTROCOATING: A process that uses coating concentrates or pastes added to a water 

bath. The coating is applied by using an electrical current in either an anodic or cathodic 

process. 

222 ELECTROSTATIC APPLICATION: A process that applies coating particles or coating 

droplets to a grounded substrate by electrically charging them. 

223 ENCLOSED GUN WASHER: A spray gun washing system that has an enclosed solvent 

container, and which uses non-atomized solvent flow to flush the spray equipment and then 

collects and returns the discharged solvent to the enclosed container. 

224 ETCHING FILLER: A coating that contains less than 23 percent solids, by weight, and at 

least 0.5 percent acid by weight, and which is used instead of applying a pretreatment coating 

followed by a primer. 

225 EXEMPT COMPOUNDS: For a current listing of exempt compounds, see Rule 102, 

Definitions. 

226 EXTREME HIGH GLOSS COATING: A coating which, when tested in accordance with 

ASTM Test Method D-523-1989, has a reflectance of 85 percent or more on a 600

 meter.

227 EXTREME PERFORMANCE COATING: A coating applied to a metal surface where the 

coated surface, in its intended use, is frequently or chronically exposed to any of the 

following: 

227.1 Corrosive, caustic or acidic agents, chemicals, chemical fumes, chemical mixtures 

or solution. 

227.2 Repeated exposure to temperatures in excess of 250o

F (121oC). 

227.3 Repeated heavy abrasion, including mechanical wear and repeated scrubbing with 

industrial grade solvents, cleansers or scouring agents. 

228 FLOW COAT: A coating method which is applied by flowing a stream of coating over an 

object and allowing any excess material to drain.

229 HAND COATING: The application of coatings by manually-held, non-mechanically operated 

equipment. Such equipment includes paint brushes, hand rollers, caulking guns, trowels, 

spatulas, syringe daubers and sponges. 

230 HAND LETTERING: A method utilizing hand application equipment to add letters and/or 

numbers on a substrate: 

231 HEAT-RESISTANT COATINGS: A coating which is applied to a substrate that must 

withstand a temperature of at least 400o

F (204oC) during normal use. 

232 HIGH PERFORMANCE ARCHITECTURAL COATING: A coating used to protect 

architectural subsections and which is required to meet the specifications of the Architectural 

Aluminum Manufacturer Association’s publication number AAMA 605.2-1980. 

233 HIGH TEMPERATURE COATING: A coating applied to a substrate that must withstand a 

temperature of 1000o

F (538oC) during normal use. 

234 HIGH VOLUME, LOW PRESSURE (HVLP) APPLICATION EQUIPMENT: Equipment used 

to apply coatings by means of a gun which is designed to be operated, and which is operated 

between 0.1 and 10 psig air pressure, measured dynamically at the center of the air cap and 

at the air horns. 
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Rules and Regulations Placer County APCD 245 − 6 

235 IRIDESCENT COATING: Any coating which contains more than 0.042 lb/gal (5.0 g/l) of 

iridescent particles, as applied, where such particles are visible in the dried film.

236 KEY SYSTEM OPERATING PARAMETER: A variable that is critical to the operation of an 

emission control system and that ensures both operation of the system within the system 

manufacturer’s specifications, and compliance with the overall system efficiency standard 

required by Section 304. Such variables may include, but are not limited to, hours of 

operation, temperature, flow rate and pressure. 

237 LOW VOLUME, LOW PRESSURE (LVLP) APPLICATION EQUIPMENT: Equipment used 

to apply coatings by means of a gun which is designed to be operated, and which is operated 

between 0.1 and 10 psig air pressure, with air volume less than 15.5 cfm per spray gun, and 

which operates at a maximum fluid delivery pressure of 50 psig. 

238 MAGNETIC DATA STORAGE DISC: A flat film or plate with a magnetic coating on which 

digital information can be stored by selective magnetization of portions of the flat surface. 

239 MAINTENANCE CLEANING: The cleaning of tools, forms, molds, jigs, machinery and 

equipment, and the cleaning of work areas where maintenance or manufacturing occurs. 

240 METAL PARTS AND PRODUCTS: Any components or complete units fabricated from 

metal, except those subject to the provisions of other District source-specific rules. 

241 METALLIC COATING: A coating which contains more than 0.042 lb/gal (5.0 g/l) of metal 

particles, as applied, where such particles are visible in the dried film. 

242 MILITARY SPECIFICATION: A coating which has a formulation approved by a United 

States Military Agency for use on military equipment.

243 MOLD-SEAL COATING: The initial coating applied to a new mold or repaired mold and 

associated tooling to provide a smooth surface which, when coated with a mold release 

material, prevents products from sticking to the mold or to the tooling. 

244 MOTOR VEHICLE: A passenger car, light duty truck, medium-duty vehicle, or heavy-duty 

vehicle as defined in Section 1902, Title 13, of the California Administrative Code. 

245 MULTI-COMPONENT COATING: A coating requiring the addition of a separate reactive 

resin, commonly known as a catalyst or hardener, before application to form an acceptable 

dry film. 

246 NON-ABSORBENT CONTAINER: A container made of non-porous material that does not 

allow the migration of solvents through the container. 

247 NON-SKID COATING: Any coating which has, as its primary purpose, the creation of 

traction to prevent slippage. 

248 ONE-COMPONENT COATING: A coating that is ready for application as it comes out of its 

container to form an acceptable dry film. 

249 OPTICAL ANTI-REFLECTIVE COATING: A coating with a low reflectance in the infrared 

and visible wavelength range, and is used for anti-reflection on or near optical and laser 

hardware. 

250 PAN BACKING COATING: A coating applied to the surfaces of pots or other cooking 

implements that are exposed directly to a flame or other heating elements. 
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Placer County APCD Rules and Regulations 245 − 7 

251 PERFORMANCE TEST: The application of coatings and the use of cleaning solvents at 

paint manufacturing facilities, while conducting tests on the materials to verify performance 

with the requirements of this rule. 

252 POLYESTER RESIN MATERIALS: Materials including, but not limited to, unsaturated 

polyester resins such as isophthalic, orthophthalic, halogenated, biphenol A, vinyl ester, furan 

resins, cross-linking agents, catalysts, gel coats, inhibitors, accelerators, promoters, and any 

other VOC-containing materials in polyester resin coating operations. 

253 POLYESTER RESIN OPERATIONS: All mixing, pouring, forming, spraying and other 

production operations, including rework and cleanup activities. 

254 POWDER COATING: Any coating applied as a dry (without solvent or other carrier) finely 

divided solid, which when melted and fused, adheres to the substrate as a paint film. 

255 PREFABRICATED ARCHITECTURAL COMPONENT: Prefabricated metal parts and 

products which are to be used as architectural appurtenances or structures and which are 

coated in a shop environment, not including window frames and door frames. 

256 PRETREATMENT WASH PRIMER: A coating which contains no more than 12 percent 

solids (by weight) and at least 0.5 percent acid (by weight), and which is used to provide 

surface etching, and is applied directly to metal surfaces to provide corrosion resistance, 

adhesion and ease of stripping. 

257 REPAIR COATING: A coating used to recoat portions of a product which has sustained 

mechanical damage to the coating following normal painting operations.

258 ROLL COATER: A coating device that contains a series of mechanical rollers that apply a 

thin coating film onto the surface of a roller, which is then applied to a substrate by moving 

the substrate beneath the roller. 

259 SAFETY- INDICATING COATING: A coating which is formulated to produce a color change 

when it is exposed to an unsafe condition, such as a high temperature or an unsafe 

concentration of gas. 

260 SILICONE RELEASE COATING: A coating which contains silicone resin, and which is 

intended to prevent food from sticking to metal surfaces such as baking pans. 

261 SOLAR-ABSORBENT COATING: A coating which has as its prime purpose the absorption 

of solar radiation. 

262 SOLID FILM LUBRICANT: A very thin coating consisting of a binder system containing as 

its chief pigment material one or more of the following materials: molybdenum disulfide, 

graphite, polytetrafluoroethylene (PTFE), or other solid that acts as a dry lubricant between 

closely-fitting surfaces. 

263 STATIONARY SOURCE: Any building, structure, facility, or emissions unit which emits or 

may emit any affected pollutant directly or as a fugitive emission. 

263.1 “Building, structure, facility, or emission unit” includes all pollutant emitting activities 

which: 

263.1.1 Belong to the same industrial grouping, and 

263.1.2 Are located on one property or two or more contiguous properties, and 

263.1.3 Are under the same common ownership, operation, or control, or which are 

owned or operated by entities which are under common control. 
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Rules and Regulations Placer County APCD 245 − 8 

263.2 Pollutant emitting activities shall be considered as part of the same industrial 

grouping if: 

263.2.1 They belong to the same two-digit Standard Industrial Classification (SIC) 

code, or 

263.2.2 They are part of a common production process, which includes industrial 

processes, manufacturing processes and any connected processes 

involving a common material. 

264 STENCIL COATING: A coating which is applied by a template or stamp in order to add 

designs, letters and/or numbers to the product. 

265 STRIPPER (OR COATING REMOVER): A material applied to the surface of any metal part 

or product to completely remove maskants, coatings or coating residues. A stripper is not a 

surface preparation material or cleanup material. Material used for the removal of overspray 

is not considered a coating remover. 

266 SURFACE PREPARATION: A process where a VOC-containing material is applied to the 

surface of any miscellaneous metal part or product to clean the substrate or to promote 

adhesion of subsequent coatings, prior to the application of those coatings. 

267 TEXTURED FINISH: A rough surface produced by spraying and splattering large drops of 

coating onto a previously applied coating. The coatings used to form the appearance of the 

textured finish are referred to as “textured coatings”. 

268 TOUCH-UP COATING: A coating used to cover minor coating imperfections appearing after 

the main coating operation. 

269 TRANSFER EFFICIENCY: The ratio of the weight or volume of coating solids adhering to an 

object, to the total weight or volume, respectively, of coating solids used in the application 

process, expressed as a percentage. 

270 VACUUM-METALIZING COMPOUND: The undercoat applied to the substrate on which the 

metal is deposited, or the overcoat applied directly to the metal film. 

271 VOLATILE ORGANIC COMPOUND (VOC): For the purposes of this rule, “volatile organic 

compound” has the same meaning as in Rule 102, Definitions. 

272 VOLATILE ORGANIC COMPOUND (VOC) AS APPLIED: For the purposes of this rule, 

“volatile organic compound as applied” means the VOC content including thinners, reducers, 

hardeners, retarders, catalysts and additives, calculated pursuant to Sections 403 or 404, as 

applicable. 

300 STANDARDS

301 LIMITS: VOC CONTENT OF COATINGS FOR METAL PARTS AND PRODUCTS: Except 

for materials and processes listed in Sections 104 or 105, no person shall apply any coatings 

to a metal part or product, or use VOC-containing solvents, if such materials have a VOC 

content exceeding the applicable limits specified in the following Table 1. The VOC content of 

coating materials shall be determined in accordance with Sections 403. The VOC content of 

solvents, strippers and cleanup materials, shall be determined in accordance with Sections 

404. 
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Placer County APCD Rules and Regulations 245 − 9 

Table 1 - VOC Content Limits for Coatings and Materials Used to Coat Metal Parts and Products

VOC Limit, grams/liter (lb/gal), 

(Less water and exempt compounds)

Coating or Material Type

Baked Air-Dried 

General (One Component) 275 (2.3) 275 (2.3) 

General (Multi-Component) 275 (2.3) 340 (2.8) 

Specialty Coatings 

Camouflage 360 (3.0) 420 (3.5) 

Electric Insulating Varnish 420 (3.5) 420 (3.5) 

Etching Filler 420 (3.5) 420 (3.5) 

Extreme Performance 360 (3.0) 420 (3.5) 

Extreme High Gloss 360 (3.0) 340 (2.8) 

Heat Resistant 360 (3.0) 420 (3.5) 

High Performance Architectural 420 (3.5) 420 (3.5) 

High Temperature 420 (3.5) 420 (3.5) 

Metallic and Iridescent Coating 360 (3.0) 420 (3.5) 

Military Specification 275 (2.3) 340 (2.8) 

Mold Seal Coating 420 (3.5) 420 (3.5) 

Pan Backing Coating 420 (3.5) 420 (3.5) 

Pretreatment Wash Primer 275 (2.3) 340 (2.8) 

Prefabricated Architectural 275 (2.3) 420 (3.5) 

Repair Coating 360 (3.0) 420 (3.5) 

Silicone Release Coating 420 (3.5) 420 (3.5) 

Solar Absorbent Coating 360 (3.0) 420 (3.5) 

Touch-Up Coating 360 (3.0) 420 (3.5) 

Vacuum Metalizing 420 (3.5) 420 (3.5) 

302 APPLICATION METHODS: A person shall not apply coatings to metal parts and products 

subject to the provisions of this rule unless the coatings are applied using properly operated 

equipment, and by using either: one of the following application methods or any other high 

transfer efficiency application method which has been approved in advance, in writing, by the 

Air Pollution Control Officer and United States Environmental Protection Agency:

 302.1 Electrostatic attraction, operated in accordance with manufacturer’s 

 recommendations. 

 302.2 High-Volume, Low-Pressure (HVLP) spray system operated in accordance with 

 manufacturer’s recommendations. 

 302.3 Low-Volume, Low-Pressure (LVLP) spray system operated in accordance with 

 manufacturer’s recommendations. 

 302.4 Flow Coat 

 302.5 Dip Coat 

 302.6 Hand Coat 

 302.7 Roll Coat 

303 SURFACE PREPARATION AND CLEAN-UP REQUIREMENTS: 

 303.1 A person shall not use materials which have a VOC content in excess of 200 grams 

per liter (1.67 pounds/gallon) of material for stripping any coating governed by this 

rule. 
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Rules and Regulations Placer County APCD 245 − 10 

303.2 Before August 20, 2010, a person shall not perform product cleaning with any 

material containing VOC in excess of 72 grams per liter (0.6 pounds per gallon). 

303.3 Before August 20, 2010, except for electrostatic spray guns, a person shall not use 

VOC-containing materials for the clean-up of equipment used in coating operations 

unless (1) the equipment is disassembled and cleaned in an enclosed gun washer, 

or (2) the VOC content of the cleaning material used does not exceed 72 grams per 

liter (0.6 pounds per gallon). 

303.4 After August 20, 2010, a person shall not perform cleanup of application equipment 

(including spray gun nozzles), product cleaning, or surface preparation, with a 

material containing VOC in excess of 25 grams per liter (0.21 pounds per gallon). 

304 WORK PRACTICE REQUIREMENTS:

304.1 Spillage of VOC-containing materials shall be minimized. 

304.2 VOC-containing materials and used shop towels or sponges shall be stored and 

disposed of in closed containers. Storage and disposal containers must be kept 

closed, except when depositing or removing the materials. Disposal shall be 

conducted in a manner that the VOC are not emitted to the atmosphere. 

304.3 VOC-containing materials shall be conveyed in closed containers or pipes. 

305 EMISSION CONTROL EQUIPMENT: As an alternative to using materials that meet the VOC 

limits in Sections 301, a person may comply with the VOC provisions of this rule by using a 

District-approved emission control equipment system. Such compliance may be 

demonstrated by a system to capture and control emissions, which will reduce VOC 

emissions by at least 95% by weight. 

400 ADMINISTRATIVE REQUIREMENTS

401 PROHIBITION OF SPECIFICATION: No person shall require for use or specify the 

application of any coating subject to the provisions of this rule that does not meet the limits 

and requirements of this rule. The prohibition of this Section shall apply to all written or oral 

contracts under the terms of which any coating is to be applied to any metal parts or product 

at any physical location within the District. 

402 PRODUCT INFORMATION REQUIREMENTS FOR SELLERS: Any person who sells any 

coating, coating remover (stripper), surface preparation or cleanup material subject to this 

rule, shall provide the following information on material data sheets made available to the 

purchaser at the time of sale: 

402.1 The material type by name/code/manufacturer. 

402.2 For coating materials, the maximum VOC content of the material, as applied, after 

any mixing or thinning as recommended by the manufacturer: VOC content shall be 

displayed as grams per liter (pounds per gallon) of coating, excluding water and 

exempt compounds, pursuant to Section 403. 

402.3 For coating removers (strippers), surface preparation and cleanup materials, the 

maximum VOC content of the material, as applied, after any mixing or thinning as 

recommended by the manufacturer: VOC content shall be displayed as grams per 

liter (pounds per gallon) of material, including water and exempt compounds, 

pursuant to Section 404. 

402.4 For all materials, recommendations regarding thinning, reducing, or mixing with any 

VOC-containing material, as defined in Section 270. 
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Placer County APCD Rules and Regulations 245 − 11 

402.5 For all materials, VOC content may be calculated using product formulation data, or 

may be determined using the test method in Section 503.1. 

403 DETERMINATION OF VOC CONTENT OF COATINGS, LESS WATER AND EXEMPT 

COMPOUNDS: The weight of VOC per combined volume of VOC and coating solids shall be 

calculated by the following equation: 

 Wv – Ww - Wec

G = ------------------------ 

 Vm – Vw - Vec

Where: G = Weight of VOC per liter of coating, less water and exempt 

compounds 

 Wv = Weight of volatile compounds, in grams 

 Ww = Weight of water, in grams 

 Wec = Weight of exempt compounds, in grams 

 Vm = Volume of coating material, in liters

 Vw = Volume of water in liters 

 Vec = Volume of exempt compounds, in liters. 

404 DETERMINATION OF VOC CONTENT PER LITER OF COATING REMOVERS 

(STRIPPERS), SURFACE PREPARATION MATERIALS, AND CLEANUP MATERIALS: 

The weight (in grams) of VOC per liter of coating materials shall be calculated by the 

following equation: 

 Wv – Ww - Wec

G = ------------------------ 

 Vm

Where: G = Weight of VOC per total volume of material, in grams per liter. 

 Wv = Weight of all volatile compounds, in grams 

 Ww = Weight of water, in grams 

 Wec = Weight of exempt compounds, in grams 

 Vm = Volume of coating material, including any added VOC-containing 

 solvents or reducers, but excluding any colorants added to tint the 

 base, in liters. 

405 OPERATION AND MAINTENANCE PLAN: A person using an emission control system 

pursuant to Section 304, as a means of alternate compliance with this rule, must submit an 

Operation and Maintenance Plan for the emission control system to the Air Pollution Control 

Officer for approval. A person proposing to install a new emission control as a means of 

alternate compliance with this rule shall submit in addition to an Operation and Maintenance 

Plan, an application for Authority to Construct, pursuant to Rule 501, General Permit

Requirements. The plan shall specify operating and maintenance procedures which will 

demonstrate continuous operation of the emission control system during periods of emissionproducing operations. The Plan shall also specify which records must be kept to document 

these operating and maintenance procedures. These records shall comply with the 

requirements of Sections 501. The plan shall be implemented upon approval of the Air 

Pollution Control Officer. 

500 MONITORING AND RECORDS 

501 RECORDKEEPING: In addition to any applicable record-keeping requirements of either Rule 

502, New Source Review, Rule 507, Federal Operating Permit Program, Rule 511, Potential
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Rules and Regulations Placer County APCD 245 − 12 

To Emit, or any other District Rule which might be applicable, any person applying coating 

products, surface preparation solvents, cleanup solvents, or strippers subject to any provision 

of this rule shall maintain the following records for non-exempt materials in order to evaluate 

compliance: 

501.1 Product Data: A list of currently used coating products, surface preparation solvents, 

cleanup solvents or strippers subject to this rule. This list shall include all of the 

following data for each material used: 

501.1.1 The material’s manufacturer, product name and product number or code. 

501.1.2 Classification according to the terminology used in Sections 301, 302 and 

303. (e.g.” Extreme-Performance Coating”, “Mold-Seal Coating”, “Stripper”, 

etc.). 

501.1.3 The material’s VOC content as applied, determined according to Sections 

403 and 404, when used in the mixing ratios recommended by the 

manufacturer. 

501.1.4 The actual mixing ratio, if different from the manufacturer’s recommendation, 

used in applying the material. 

501.2 Product Usage and Frequency: Any person using materials regulated by this rule 

shall record and maintain records of the volume used per month of each individual 

material as listed pursuant to Section 501.1. 

501.3 Emission Control Equipment Records: 

501.3.1 A person using emission control equipment as a means of alternate 

compliance pursuant to Section 304, shall maintain records on a daily basis, 

showing the type and volume of coatings and solvents used. 

501.3.2 A person using emission control equipment as a means of alternate 

compliance with this rule pursuant to Section 304, shall maintain daily 

records of key system operating and maintenance procedures which will 

demonstrate continuous operation and compliance of the emission control 

system during periods of emission-producing activities. Key system 

operating parameters are those necessary to ensure compliance with the 

requirements of Section 304, and as defined in Section 235. 

501.4 Retention of Records: All records required by this rule shall be retained for at least 

three years, except for sources subject to Rule 507, Federal Operating Permit

Program, which shall be retained for at least five years. Such records shall be made 

available to the Air Pollution Control Officer, upon request. 

502 VOC EMISSION THRESHOLD: If VOC emissions for any calendar year exceed 10,000 

pounds, additional recordkeeping documentation will be required per Rule 511, Potential To

Emit.

503 TEST METHODS:

503.1 Determintation of VOC Content: VOC content of coatings, solvents, strippers and 

surface preparation materials shall be determined in accordance with United States 

Environmental Protection Agency (USEPA) Method 24 or Method 24A. 

503.2 Determination of Compounds Exempt From VOC Definition: Exempt compounds 

referenced in Section 224 and listed in Rule 102, Definitions, shall be determined in 

accordance with ASTM D 4457-85 “Standard Test Method for Determination of 
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Placer County APCD Rules and Regulations 245 − 13 

Dichloromethane and 1,1,1-Tricholorethane in Paints and Coatings by Direct 

Injection into a Gas Chromatograph” or California Air Resources Board Method 432 

“Determination of Dichloromethane and 1,1,1-Tricholorethane in Paints and 

Coatings”. If any 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 USEPA-approved test method used 

to make the determination of these compounds. 

503.3 Determination of Control Efficiency: Control efficiency of emissions control 

equipment referenced in Section 304, shall be determined in accordance with 

USEPA Method 25 or 25A: and USEPA Method 2 or 2C (whichever is applicable). 

USEPA Method 18 or CARB Method 422 “Determination of Volatile Organic 

Compounds in Emissions from Stationary Sources” may be used to determine 

emissions of exempt compounds. 

503.4 Determination of Collection Efficiency: Collection efficiency of the control equipment 

referenced in Section 304 shall be determined in accordance with U.S.EPA’s 

“Guidelines for Determining Capture Efficiency, January 9, 1995”. Individual 

collection efficiency test runs subject to the U.S.EPA’s technical guidelines shall be 

determined by: 

503.4.1 40 CFR 51, Appendix M, Methods 204-204F; or 

503.4.2 The South Coast AQMD “Protocol for Determination of Volatile Organic 

Compound (VOC) Capture Efficiency”; or 

503.4.3 Any other method approved by the USEPA, the California Air Resources 

Board, and the Air Pollution Control Officer. 

503.5 Metallic/Iridescent Topcoat: The determination of a coating as metallic/iridescent 

shall be made using the South Coast Air Quality Management District 

“Spectrographic Method for the Analysis of Carbon Dust and Carbon Laminates, 

December 1985”. 

503.6 Acid Content: The acid content of pretreatment wash primers shall be measured and 

reported in accordance with South Coast Air Quality Management District 

“Laboratory Methods for Analysis for Enforcement Samples”, and ASTM D1613-06 

“Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates 

Used in Paint, Varnish, Lacquer, and Related Products”. 

503.7 Emissions From Spray Gun Cleaning Systems: Determination of emissions of VOC 

from spray gun cleaning systems shall be made using South Coast Air Quality 

Management District “General Method for Determining Solvent Losses From Spray 

Gun Cleaning Systems”, October 1989. 

503.8 Transfer Efficiency: Determination of transfer efficiency shall be made using South 

Coast Air Quality Management District Test Method “Spray Equipment Transfer 

Efficiency Test Procedure for Equipment Users”, May 24, 1989. 

503.9 Multiple Test Methods: When more than one test method or a set of test methods is 

specified for any testing, a violation 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. 
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