RULE 102 DEFINITIONS 

 Adopted 11-12-74 

 (Amended 5-24-77, 12-19-78, 6-19-79, 5-20-85, 2-04-92, 10-19-93, 8-08-96, 6-19-97, 10-12-00) 

CONTENTS

100 GENERAL

101 PURPOSE 

200 DEFINITIONS

201 AGRICULTURAL BURNING 

202 AGRICULTURAL OPERATION 

203 AGRICULTURAL WASTES 

204 AIR CONTAMINANT 

205 AIR POLLUTION CONTROL OFFICER 

206 ALTERATION 

207 APPROVED IGNITION DEVICES 

208 ARB 

209 BOARD 

210 BRUSH TREATED 

211 BULK PLANT 

212 CITRUS HEATER 

213 COMBUSTIBLE WASTE 

214 COMBUSTION CONTAMINANT 

215 CONDENSED FUMES 

216 CONSTRUCTION-DEMOLITION DEBRIS 

217 DESIGNATED AGENCY 

218 DISTRICT 

219 DUST 

220 EMISSION 

221 EMISSION POINT 

222 EXEMPT COMPOUNDS 

223 FLAMMABLE WASTE 

224 FLUE 

225 FOREST MANAGEMENT BURNING 

226 FOSSIL FUEL 

227 FOSSIL FUEL-FIRED STEAM GENERATOR 

228 HEARING BOARD 

229 HYDROCARBON 

230 INCINERATION 

231 INCINERATOR 

232 INSTALLATION 

233 LAKE TAHOE AIR BASIN 

234 NO-BURN DAY 

235 OPEN OUTDOOR FIRE 

236 OPERATOR 

237 ORCHARD HEATER 

238 OWNER 

239 PARTICULATE MATTER 

240 PERMISSIVE BURN DAY 

241 PERSON 

242 POLLUTANT 

October 12, 2000 

Placer County APCD 102 - 1 Rules and Regulations 
243 PROCESS WEIGHT PER HOUR 

244 PUBLIC RECORD 

245 RANGE IMPROVEMENT BURNING 

246 RECORD 

247 RESIDENTIAL ALLOWABLE BURN MATERIALS 

248 SECTION 

249 SILVICULTURAL PRACTICES 

250 SOLID PARTICULATE MATTER 

251 SOLID WASTE DUMP 

252 STANDARD CONDITIONS 

253 STANDARD CUBIC FOOT OF GAS 

254 TIMBER OPERATIONS 

255 VOLATILE ORGANIC COMPOUND (VOC) 

256 WOOD-FIRED BOILER 

300 STANDARDS

(NOT INCLUDED)

400 ADMINISTRATIVE REQUIREMENTS

 (NOT INCLUDED)

500 MONITORING AND RECORDS

 (NOT INCLUDED) 

October 12, 2000 

Rules and Regulations 102 - 2 Placer County APCD 
100 GENERAL

101 PURPOSE: To provide definitions of specific terms used in the Placer County Air 

Pollution Control District Rules and Regulations. 

200 DEFINITIONS

PROVISO: Except as otherwise specifically provided in these Rules, and except where the 

context otherwise indicates, words used in these Rules are used in exactly the same sense as 

the same words are used in the Health and Safety Code of the State of California. 

201 AGRICULTURAL BURNING: Open outdoor fires used in agricultural operations in the 

growing of crops or raising of fowl or animals or open outdoor fires used in forest 

management, range improvement, or the improvement of land for wildlife and game 

habitat or disease or pest prevention or the use of open outdoor fires used in the 

operation or the maintenance of a system for the delivery of water. 

202 AGRICULTURAL OPERATION: The growing and harvesting of crops, raising of fowl or 

animals for the primary purpose of making a profit or providing a livelihood, or the 

conducting of agricultural research or instruction by an educational institution. 

203 AGRICULTURAL WASTES: The unwanted or unsellable materials produced wholly 

from agricultural operations and materials not produced from agricultural operations, but 

which are intimately related to the growing or harvesting of crops. 

204 AIR CONTAMINANT: Any discharge, release or other propagation directly into the 

atmosphere. It includes, but is not limited to, smoke, dust, charred paper, soot, grime, 

carbon, noxious acids, fumes, gases, odors, particulate matter, or any combination 

thereof. 

205 AIR POLLUTION CONTROL OFFICER: The Air Pollution Control Officer of the Placer 

County Air Pollution Control District, or designee. 

206 ALTERATION: Any addition to, enlargement of, replacement of, or any major 

modification or change of the design, capacity, process, or arrangement, or any increase 

in the connected loading of equipment or control apparatus, which will significantly 

increase or affect the kind and/or amount of air contaminants emitted. 

207 APPROVED IGNITION DEVICES: Those instruments or materials that will ignite open 

fires without the production of black smoke by the ignition device. This would include 

such items as liquid petroleum gas, butane, propane, or diesel oil burners, flares, or other 

similar material as approved by the Air Pollution Control Officer. This does not include 

tires, tar, tar paper, oil and other similar materials. 

208 ARB: The California State Air Resources Board, or any person authorized to act on its 

behalf. 

209 BOARD: The Board of Directors of the Placer County Air Pollution Control District. 

210 BRUSH TREATED: Material which has been felled, crushed or up-rooted with 

mechanical equipment, or which has been desiccated with herbicides. 

 211 BULK PLANT: A distribution plant which receives organic liquids; stores them in 

stationary tanks; and loads them into tank trucks for delivery to other bulk plants, service 

stations or storage tanks. 

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Placer County APCD 102 - 3 Rules and Regulations 
212 CITRUS HEATER: Any article, machine, equipment, or other contrivance, burning any 

type of fuel or material capable of emitting air contaminants, used or capable of being 

used for the purpose of giving protection from frost damage. 

213 COMBUSTIBLE WASTE: Any garbage, rubbish, trash, rags, paper, boxes, crates, 

excelsior, ashes, offal, carcass of a dead animal, petroleum product waste or any other 

combustible or flammable refuse material. 

214 COMBUSTION CONTAMINANT: Any particulate matter discharged into the atmosphere 

from the burning of any material which contains carbon in either the free or the combined 

state. 

215 CONDENSED FUMES: Minute solid particles generated by the condensation of vapors 

from solid matter after volatilization from the molten state, or may be generated by 

sublimation, distillation, calcination, or chemical reaction, when these processes create 

airborne particles. 

216 CONSTRUCTION-DEMOLITION DEBRIS: Any material associated with the 

construction or demolition of any building, dwelling, or other man-made structures, 

including but not limited to lumber, tar paper, roofing material, wiring, flooring material, 

insulation, and plywood. 

217 DESIGNATED AGENCY: Any agency designated by the ARB and Placer County Air 

Pollution Control District as having authority to issue Agricultural Burn Permits. 

218 DISTRICT: The Placer County Air Pollution Control District. 

219 DUST: The minute solid particles released into the air by natural forces or by mechanical 

processes such as crushing, grinding, milling, drilling, demolishing, shoveling, conveying, 

covering, bagging, sweeping, or other similar process. 

220 EMISSION: The act of releasing or discharging air contaminants into the atmosphere 

from any source. 

221 EMISSION POINT: The place, located in a horizontal plane and vertical elevation, at 

which an emission enters the atmosphere. 

222 EXEMPT COMPOUNDS: Organic compounds which are exempt from the definition of 

Volatile Organic Compounds (VOC). Notwithstanding definitions of Exempt Compounds 

that may be included in specific rules in Regulation II, the following compounds are 

exempt: 

222.1 carbon monoxide 

222.2 carbon dioxide 

222.3 carbonic acid 

222.4 metallic carbides or carbonates 

222.5 ammonium carbonate 

222.6 methane 

222.7 methylene chloride (dichloromethane) 

222.8 perchloroethylene (tetrachloroethylene) 

222.9 1,1,1-trichloroethane (methyl chloroform) 

222.10 trichlorofluoromethane (CFC-11) 

222.11 dichlorodifluoromethane (CFC-12) 

222.12 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) 

222.13 1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114) 

222.14 chloropentafluoroethane (CFC-115) 

(definition continued on following page) 

October 12, 2000 

Rules and Regulations 102 - 4 Placer County APCD 
222.15 chlorodifluoromethane (HCFC-22) 

222.16 1,1,1-trifluloro-2,2-dichloroethane (HCFC-123) 

222.17 1,1-dichloro-1-fluoroethane (HCFC-141b) 

222.18 1-chloro-1,1-difluoroethane (HCFC-142b) 

222.19 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124) 

222.20 trifluoromethane (HFC-23) 

222.21 1,1,2,2-tetrafluoroethane (HFC-134) 

222.22 1,1,1,2-tetrafluoroethane (HFC-134a) 

222.23 pentafluoroethane (HFC-125) 

222.24 1,1,1-trifluoroethane (HFC-143a) 

222.25 1,1-difluoroethane (HFC-152a) 

222.26 cyclic, branched, or linear, completely methylated siloxanes 

222.27 The following classes of perfluorocarbons: 

 a cyclic, branched, or linear, completely fluorinated alkanes. 

 b cyclic, branched or linear, completely fluorinated ethers with no 

unsaturations. 

 c cyclic, branched, or linear, completely fluorinated tertiary amines with no 

unsaturations. 

 d sulfur-containing perfluorocarbons with no unsaturations and with the 

sulfur bonds to carbon and fluorine. 

222.28 The following low-reactive organic compounds which have been exempted by 

the U. S. EPA: 

 a acetone 

 b ethane 

 c parachlorobenzotrifluoride 

223 FLAMMABLE WASTE: Any garbage, rubbish, trash, rags, paper, boxes, crates, 

excelsior, ashes, offal, carcass of a dead animal, petroleum product waste or any other 

combustible or flammable refuse material. 

224 FLUE: Any duct or passage for air or other gases, including but not limited to a stack or 

a chimney. 

225 FOREST MANAGEMENT BURNING: The use of open fires, as part of a forest 

management practice, to remove forest debris. Forest management practices include 

timber operations, silvicultural practices and forest production practices. 

226 FOSSIL FUEL: Natural gas, petroleum, coal and any form of solid, liquid, or gaseous 

fuel derived from such materials. 

227 FOSSIL FUEL-FIRED STEAM GENERATOR: A furnace or boiler used in the process of 

burning fossil fuel for the primary purpose of producing steam by heat transfer. 

228 HEARING BOARD: The Hearing Board of the Air Pollution Control District of Placer 

County. 

229 HYDROCARBON: Any compound of carbon containing hydrogen. 

230 INCINERATION: An operation in which combustion is carried on for the principal 

purpose, or with the principal result of oxidizing a waste material to reduce its bulk or 

facilitate its disposal. 

231 INCINERATOR: Any furnace or other closed fire chamber used to dispose of 

combustible waste by burning, and from which the products of combustion are directed 

through a flue or chimney. 

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Placer County APCD 102 - 5 Rules and Regulations 
232 INSTALLATION: The placement, assemblage, or construction of equipment or control 

apparatus at the premises where the equipment or control apparatus will be used, 

including all preparatory work at such premises. 

233 LAKE TAHOE AIR BASIN: That area as defined by Section 60113, Title 17, California 

Administrative Code. 

234 NO-BURN DAY: Any day on which agricultural burning is prohibited by the ARB. 

235 OPEN OUTDOOR FIRE: Combustion of any combustible material of any type, outdoors 

in the open air, where the products of combustion are not directed through a flue. 

236 OPERATOR: Person who owns, operates, controls or supervises an affected facility, or 

a stationary source of which an affected facility is a part. 

237 ORCHARD HEATER: Any article, machine, equipment, or other contrivance, burning 

any type of fuel or material capable of emitting air contaminants, used or capable of being 

used for the purpose of giving protection from frost damage. 

238 OWNER: Person who owns, operates, controls or supervises an affected facility, or a 

stationary source of which an affected facility is a part. 

239 PARTICULATE MATTER: Any material except uncombined water, which can exist in a 

finely divided form as a liquid or solid at standard conditions. 

240 PERMISSIVE BURN DAY: Any day on which agricultural burning is not prohibited by the 

ARB. 

241 PERSON: Any person, firm, association, organization, partnership, business trust, 

corporation, company, contractor, supplier, installer, operator, user, owner, any 

government agency, public district or any officer or employee thereof. 

242 POLLUTANT: Any discharge, release or other propagation directly into the atmosphere. 

It includes, but is not limited to, smoke, dust, charred paper, soot, grime, carbon, noxious 

acids, fumes, gases, odors, particulate matter, or any combination thereof. 

243 PROCESS WEIGHT PER HOUR: The total weight, including contained moisture, of all 

materials introduced into any specific process, which process may cause any discharge 

into the atmosphere. Solid fuels charged will be considered as part of the process 

weight, but liquid and gaseous fuels and combustion air will not. (The process weight per 

hour will be derived by dividing the total process weight introduced, by the number of 

hours in one complete operation, from the beginning of any given process to the 

completion thereof, excluding any time during which the equipment is idle.) 

244 PUBLIC RECORD: Any record made available to the public by law, containing 

information relating to the conduct of the public's business that is prepared, owned, used 

or retained by the District, except trade secrets. 

245 RANGE IMPROVEMENT BURNING: The use of open fires to remove vegetation for a 

wildlife, game or livestock habitat, or for the initial establishment of an agricultural 

practice on previously uncultivated land. 

246 RECORD: Handwriting, typewriting, printing, photostating, photographing, and every 

other means of recording upon any form of communication or representation, including 

letters, words, pictures, sounds, or symbols, or any combination thereof, and all papers, 

October 12, 2000 

Rules and Regulations 102 - 6 Placer County APCD 
maps, magnetic or paper tapes, photographed films and prints, magnetic or punched 

cards, magnetic disks, drums, and other documents. 

247 RESIDENTIAL ALLOWABLE BURN MATERIALS: Materials originating from a single 

or two family dwelling on its premises, limited to the following items: dry paper, dry 

cardboard, dry tree trimmings, dry leaves and pine needles, dry plants and dry weeds. 

248 SECTION: A Section of the Health and Safety Code of the State of California, unless 

some other statute is specifically mentioned. 

249 SILVICULTURAL PRACTICES: The establishment, development, care and 

reproduction of stands of timber. 

250 SOLID PARTICULATE MATTER: Any material except uncombined water, which can 

exist in a finely divided form as a solid at standard conditions. 

251 SOLID WASTE DUMP: Any accumulation for the purpose of disposal of any solid waste. 

252 STANDARD CONDITIONS: A gas temperature of 60 degrees Fahrenheit and a gas 

pressure of 14.7 pounds per square inch absolute. Results of all analyses and tests shall 

be calculated and reported at this gas temperature and pressure. 

253 STANDARD CUBIC FOOT OF GAS: The amount of gas that would occupy a volume of 

one (1) cubic foot, if free of water vapor, at standard conditions. 

254 TIMBER OPERATIONS: Cutting or removal of timber or other forest vegetation. 

255 VOLATILE ORGANIC COMPOUND (VOC): Any chemical compound containing at least 

one atom of carbon except for those listed as "Exempt Compounds" 

256 WOOD-FIRED BOILER: Any boiler used for steam generation, from which the products 

of combustion are directed through a flue or chimney and which derives at least 80 

percent of its fuel input heat content from wood, or wood-associated waste. 

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Rules and Regulations 102 - 8 Placer County APCD