CALIFORNIA AIR RESOURCES BOARD 

SIP COMPLETENESS CHECKLIST 

(Electronic Format) 

*** TO BE COMPLETED BY DISTRICT AND RETURNED TO ARB *** 

All rules submitted to the EPA as State Implementation Plan (SIP) revisions must be supported by certain information 

and documentation for the rule packages to be deemed complete for review by the EPA. Rules will not be evaluated for 

approvability by the EPA unless the submittal packages are complete. To assist you in determining that all necessary 

materials are included in rules packages sent to the ARB for submittal to the EPA, please fill out the following form and 

include it with the rule package you send ARB. See the ARB's Guidelines on the Implementation of the 40 CFR 51, 

Appendix V, for a more detailed explanation than is provided here. Adopted rules and rule amendments should be 

checked against U.S. EPA's Guidance Document for Correcting Common VOC & Other Rule Deficiencies (Little Blue 

Book, August 21, 2001) to ensure that they contain no elements which will result in disapproval by EPA. 

District: San Diego County Air Pollution Control District

Rule No: 2

Rule Title: Definitions

Date Adopted or Amended: n/a

ADMINISTRATIVE MATERIALS 

Note: All documents should be in electronic format. Items that have signatures, initials, or stamps may be scanned. 

 Not 

Attached Attached N/A

 COMPLETE COPY OF THE RULE: Provide an unmarked copy of the entire 

rule as adopted or amended by your District Board. 

 UNDERLINE AND STRIKEOUT COPY OF THE RULE: If an amended rule, 

provide a complete copy of the rule indicating in underline and strikeout 

format all language which has been added, deleted, or changed since the rule 

was last adopted or amended. 

 COMPLETE COPY OF THE REFERENCED RULE(S): For any rule which 

includes language specifically referencing another rule, a copy of that other 

rule must also be submitted, unless it has already been submitted to EPA as 

part of a previous SIP submittal. 

 PUBLIC NOTICE EVIDENCE: Include a copy of the local newspaper clipping 

certification(s), stating the date of publication, which must be at least 30 days 

before the hearing. As an alternative, include a copy of the actual published 

notice of the public hearing as it appeared in the local newspaper(s). In this 

case, however, enough of the newspaper page must be included to show the 

date of publication. The notice must specifically identify by title and number 

each rule adopted or amended. 

 RESOLUTION/MINUTE ORDER: Provide the Board Clerk certified resolution 

or minute order. This document must include certification that the hearing 

was held in accordance with the information in the public notice. It must also 

list the rules that were adopted or amended, the date of the public hearing, 

and a statement of compliance with California Health and Safety Code 

Sections 40725-40728 (Administrative Procedures Act). 

 PUBLIC COMMENTS AND RESPONSES: Submit copies of written public 

comments made during the notice period and at the public hearing. Also 

submit any written responses prepared by the District staff or presented to the 

District Board at the public hearing. A summary of the public comments and 

responses is adequate. If there were no comments made during the notice 

period or at the hearing, please indicate N/A to the left. 
 

5/1/2002 

CALIFORNIA AIR RESOURCES BOARD 

SIP COMPLETENESS CHECKLIST 

(Electronic Format)

TECHNICAL MATERIALS 

 Not 

Attached Attached N/A

 RULE EVALUATION FORM: See instructions for completing the Rule 

Evaluation Form and the accompanying sample form. 

 NON-EPA TEST METHODS: Attach all test methods that are referenced in 

your rule that do not appear in 40 CFR 51, 60, 61, 63, or have not been 

previously submitted to EPA. EPA methods used in other media such as 

SW846 for solid waste are not automatically approved for air pollution 

applications. Submittal of test methods that are not EPA-approved should 

include the information and follow the procedure described in Region 9’s 

“Test Method Review & Evaluation Process.” 

 MODELING SUPPORT: Provide if appropriate. In general, modeling support 

is not required for VOC and NOx rules to determine their impacts on ozone 

levels. Modeling is required where a rule is a relaxation that affects large 

sources (> 100 TPY) in an attainment area for SO2, directly emitted PM10, 

CO, or NOx (for NO2 purposes). In cases where EPA is concerned with the 

impact on air quality of rule revisions which relax limits or cause a shift in 

emission patterns in a nonattainment area, a reference back to the approved 

SIP will be sufficient provided the approved SIP accounts for the relaxation 

and provided the approved SIP used the current EPA modeling guidelines. If 

current EPA modeling guidelines were not used, then new modeling may be 

required. 

 ECONOMIC AND TECHNICAL JUSTIFICATION FOR DEVIATIONS FROM 

EPA POLICIES: The District staff report or other information included with 

the submittal should discuss all potential relaxations or deviations from RACT, 

RACM, BACT, BACM, enforceability, attainment, RFP, or other relevant EPA 

requirements. This includes, for example, demonstrating that exemptions or 

emission limits less stringent than the presumptive RACT (e.g., a CTG) meet 

EPA’s 5 percent policy, and demonstrating that all source categories 

exempted from a RACM/BACM rule are de minimus according to EPA’s 

RACM/BACM policy. 

 ADDITIONAL MATERIALS: Provide District staff reports and any other 

supporting information concerning development of the rule or rule changes. 

This information should explain the basis for all limits and thresholds 

contained in the rule. 
CALIFORNIA AIR RESOURCES BOARD 

APCD/AQMD RULE EVALUATION FORM -- Page 1

(Electronic Format) 

I. GENERAL INFORMATION

District: San Diego County Air Pollution Control District

Rule No(s): 2 Date adopted/Amended/Rescinded: 6/30/99

Rule Title(s): Definitions

Date Submitted to ARB: 9/23/09

If an Amended Rule, Date Last Amended (or Adopted): N/A

Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? Yes No (If No, do not complete remainder of form)

District Contact: Rob Reider Phone Number: (858) 286-2640 E-mail Address: Rob.Reider @sdcounty.ca.gov

Narrative Summary of New Rule or Rule Changes: New Rule Amended Rule 

Rule 2 is administrative in nature. It provides definitions of terms used in Rules and Regulatins of San Diego 

County. The rule is not formally amended. The only revised part of the rule is Table 1 - Exempt Compounds. 

The table has been updated according to Rule 2 provision specified in Section (b) (21) - Exempt Compounds.

Pollutant(s) Regulated by the Rule (Check): ROG (NOx) SO2 

 (CO) PM TAC (name): 

II. EFFECT ON EMISSIONS

Complete this section ONLY for rules that, when implemented, will result in quantifiable changes in emissions. Attach reference(s) for emission factor(s) 

and other information. Attach calculation sheet showing how the emission information provided below was determined. 

Net Effect on Emissions: Increase Decrease N/A 

Emission Reduction Commitment in SIP for this Source Category: 

Inventory Year Used to Calculate Changes in Emissions: Area Affected: 

Future Year Control Profile Estimate (Provide information on as many years as possible): 

 
CALIFORNIA AIR RESOURCES BOARD 

APCD/AQMD RULE EVALUATION FORM -- Page 2

(Electronic Format) 

Baseline Inventory in the SIP for the Control Measure: 

Emissions Reduction Commitment in the SIP for the Control Measure: 

Revised Baseline Inventory (if any): 

Revised Emission Reduction Estimate (if developed): 

Note that the district’s input to the Rule Evaluation Form will not be used as input to the ARB’s emission forecasting and 

planning. 

III. SOURCES/ATTAINMENT STATUS

District is: Attainment Nonattainment Split 

Approximate Total Number of Small (<100 TPY) Sources Affected by this Amendment: N/A

Percent in Nonattainment Area: N/A% 

Number of Large (> 100 TPY) Sources Controlled: N/A Percent in Nonattainment Area: % 

Name(s) and Location(s) (city and county) of Large (> 100 TPY) Sources Controlled by Rule (Attach additional sheets as 

necessary): 

IV. EMISSION REDUCTION TECHNOLOGY

Does the Rule Include Emission Limits that are Continuous? Yes No 

If Yes, Those Limits are in Section(s) of the Rule. 

Other Methods in the Rule for Achieving Emission Reductions are: 

V. OTHER REQUIREMENTS

The Rule Contains: 

Emission Limits in Section(s): Work Practice Standards in Section(s): 

Recordkeeping Requirements in Section(s): Reporting Requirements in Section(s): 
CALIFORNIA AIR RESOURCES BOARD 

APCD/AQMD RULE EVALUATION FORM -- Page 3

(Electronic Format) 

5/1/2002 

3

VI. IMPACT ON AIR QUALITY PLAN

 No Impact Impacts RFP Impacts attainment 

Discussion: 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

SDAPCD Regulation I Rules 1 & 2 

7/26/99 -1- 

REGULATION I GENERAL PROVISIONS (Effective 1/1/69, Rev. Adopted & 

Effective 5/15/96; Rev. Adopted & Effective 5/21/97; Rev. Adopted & 

Effective 6/30/99) 

RULE 1. TITLE

 These rules and regulations shall be known as the Rules and Regulations of the Air 

Pollution Control District of San Diego County. 

RULE 2. DEFINITIONS (Rev. Adopted & Effective 5/15/96) 

(Rev. Adopted & Effective 6/30/99) 

(a) APPLICABILITY 

(1) The definitions listed in Section (b) of this rule shall be applicable to all Rules 

and Regulations of the Air Pollution Control District of San Diego County, unless the same 

term is specifically defined in any other applicable Rule or Regulation. 

(2) Except as otherwise specifically provided in these Rules or where the context 

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

same words are used in Division 26 of the Health and Safety Code. 

(b) DEFINITIONS 

(1) "12-Month Period" means any 12 consecutive calendar months. 

(2) "Abrasive Blasting Cabinet" means an enclosure used to contain abrasive 

media and which can only be entered through ports for gloved arms and hands when 

abrasive blasting is conducted. 

 (3) "Air Contaminant" or "Air Pollutant" means any substance discharged, 

released, or otherwise propagated into the atmosphere and includes, but is not limited to, 

any of the following: volatile organic compounds, exempt compounds, oxides of nitrogen, 

particulate matter, gaseous sulfur compounds, carbon monoxide, toxic air contaminants, 

smoke, dust, soot, carbon, noxious acids and gases, fumes, odors, or any combination 

thereof. 

 (4) "Air Pollution Control Board of San Diego County" is a board whose 

members are the Supervisors of the County of San Diego. 

 (5) "Air Pollution Control Officer (APCO)" means the Air Pollution Control 

Officer of the San Diego County Air Pollution Control District. 

 (6) "Application Station" means a booth, a room, a designated area, a location, or 

a location on a process line where, at any given time, a material is applied. 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -2- Rule 2 

 (7) "Atmosphere" means the air that surrounds the earth. Where air pollutants are 

emitted into a building not designed specifically as a piece of air pollution control 

equipment, such emissions into the building shall be considered emissions into the 

atmosphere. 

 (8) "Calendar Day" means the 24-hour period starting at 12 midnight and 

continuing through to the subsequent 12-midnight hour. 

 (9) "Calendar Quarter" means any of the following three month periods: January 

1 through March 31, April 1 through June 30, July 1 through September 30, or October 1 

through December 31. 

 (10) "Calendar Year" means the consecutive 12-month period beginning January 1 

and ending December 31. 

 (11) "California Coastal Waters " means the area described in California 

Government Code Section 170. The area of water lying west of the San Diego County 

coastline and bounded by the following line, excluding the islands of Santa Barbara, San 

Clemente, San Nicolas, and Santa Catalina and the area within three miles from each of the 

islands’ coastlines, generally describes the California Coastal Waters off San Diego 

County: 

 (i) Beginning at the intersection of the coastline and the San Diego-Orange 

County boundary, N 33° 23' 10", W 117° 35' 40"; 

 (ii) thence southwesterly to N 33° 20' 10", W 117° 37' 00"; 

 (iii) thence southeasterly to N 32° 53' 30", W 117° 18' 30"; 

 (iv) thence southwesterly, southerly, southeasterly, southerly, easterly and 

northeasterly to N 32° 37' 30", W 117° 11' 40"; 

 (v) thence southerly to N 32° 31' 30", W 117° 10' 20"; 

 (vi) thence easterly to N 32° 32' 00", W 117° 07' 30", which is the intersection 

of the coastline and the United States-Mexico International boundary. 

 (12) "Combustion Particulates" means particulate matter discharged into the 

atmosphere from the burning of any kind of material containing carbon in a free or 

combined state. 

 (13) "Combustible Refuse" means any solid or liquid combustible waste material 

containing carbon in a free or combined state. 

 (14) "Contiguous Property" means two or more parcels of land with a common 

boundary or separated solely by a public or private roadway or other public or private rightof-way. Non-adjoining parcels of land which are connected by a process line, conveyors, 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -3- Rule 2 

or other equipment shall be considered to be contiguous property. Non-adjoining parcels 

of land separated by bodies of water designated “navigable” by the U.S. Coast Guard, shall 

not be considered contiguous properties. 

 (15) "Control Equipment" means an air pollution control device which reduces or 

eliminates the release of a specified air contaminant to the atmosphere. 

 (16) "Desert Portion" means that part of San Diego County, State of California, 

lying east of the following described line: 

 (i) Beginning at the United States-Mexico International boundary and 

running north along the range line common to Range 7 East and Range 6 East (San 

Bernardino Base and Meridian); to the point of intersection with the township line 

common to Township 16 South and Township 17 South; 

 (ii) thence east along the township line common to Township 16 South and 

Township 17 South to the point of intersection with the range line common to Range 

7 East and Range 6 East; 

 (iii) thence north along the range line common to Range 7 East and Range 6 

East to the point of intersection with the township line common to Township 16 

South and Township 17 South; 

 (iv) thence west along the township line common to Township 16 South and 

Township 17 South to the point of intersection with the range line common to Range 

6 East and Range 5 East; 

 (v) thence north along the range line common to Range 6 East and Range 5 

East to the point of intersection with the township line common to Township 14 

South and Township 15 South; 

 (vi) thence west along the township line common to Township 14 South and 

Township 15 South to the point of intersection with the boundary of the Rancho 

Cuyamaca Land Grant; 

 (vii) thence north along the east boundary of the Rancho Cuyamaca Land Grant 

to the point of intersection with the range line common to Range 5 East and Range 4 

East; 

 (viii) thence north along the range line common to Range 5 East and Range 4 

East to the point of intersection with the south boundary of the Rancho San Felipe 

Land Grant; 

 (ix) thence beginning east and continuing along the land grant boundary to the 

point of intersection with the range line common to Range 5 East and Range 4 East; 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -4- Rule 2 

 (x) thence north along the range line common to Range 5 East and Range 4 

East to the point of intersection with the township line common to Township 10 

South and Township 9 South; 

 (xi) thence west along the township line common to Township 10 South and 

Township 9 South to the point of intersection with the range line common to Range 4 

East and Range 3 East; 

 (xii) thence north along the range line common to Range 4 East and Range 3 

East to the San Diego-Riverside County boundary. 

 (17) "District" means the San Diego County Air Pollution Control District. 

 (18) "Dust" means minute solid particles released into the air by natural forces or by 

mechanical processes including, but not limited to: crushing, grinding, milling, drilling, 

demolishing, shoveling, conveying, covering, bagging, and sweeping. 

 (19) "Eastern Section of the Air Pollution Control District of San Diego 

County" means all of that portion of San Diego County, State of California, lying east of 

the line described in Subsections (53)(i) through (53)(v) of this rule. 

 (20) "Emission Unit" means any article, machine, equipment, contrivance, process, 

or process line which emit(s) or reduce(s), or may emit or reduce, the emissions of any air 

contaminant, except motor vehicles. 

 (21) "Exempt Compounds" means any compound listed in Table 1. 

The Air Pollution Control Officer may revise Table 1 upon the Environmental 

Protection Agency (EPA) decision to add new negligibly photochemically reactive 

compounds duly noticed in the Federal Register and codified in Part 51 of Title 40 of the 

Code of Federal Regulations (CFR). Such a revision may not be made earlier than 30 days 

after public notice of the proposed revision is published in a newspaper of general 

circulation in the District, after consideration of any comments received thereupon and 

after consultation with the California Air Resources Board (ARB). The revised list of 

exempt compounds will subsequently be included in Table 1 of this rule. 

 (22) "Facility" means the same as stationary source. 

 (23) "Hearing Board" means the Hearing Board of the San Diego County Air 

Pollution Control District. 

 (24) "ISO Standard Day Conditions" means atmospheric conditions at a 

temperature of 59°F (15°C), 60 percent relative humidity, and an atmospheric pressure of 

14.70 pounds per square inch, absolute (760 mm Hg). 

 (25) "Low-Solids Stain" means a stain containing one pound of solids per gallon, or 

less. The VOC content of such stains shall be calculated on a "VOC Content per Volume 

of Material" basis as defined in Subsection (b)(52). 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -5- Rule 2 

 (26) "Major Stationary Source" means a stationary source which has or will have, 

after issuance of a permit, an aggregate potential to emit one or more air contaminants in 

amounts equal to or greater than any of the following emission rates: 

Air Contaminant Emission Rate 

 (tons/year)

 Particulate Matter (PM10) 100 

Oxides of Nitrogen(NOx) 50 

Volatile Organic Compounds (VOC) 50 

Oxides of Sulfur (SOx) 100 

Carbon Monoxide (CO) 100 

 Lead (Pb) 100 

 (27) "Military Tactical Support Equipment" means any equipment owned by the 

U.S. Department of Defense or the National Guard and used in combat, combat support, 

combat service support, tactical or relief operations, or training for such operations. 

 (28) "Motor Vehicle" means a vehicle which is self-propelled. 

 (29) "Multiple-Chamber Incinerator" means any article machine, equipment, 

contrivance, structure or part of structure used to dispose of combustible refuse by burning, 

consisting of three or more refractory lined combustion furnaces in series, physically 

separated by refractory walls, interconnected by gas passage ports or ducts and employing 

adequate design parameters necessary for maximum combustion of the material to be 

burned. The refractories shall have a Pyrometric Cone Equivalent of at least 17 when 

tested according to ASTM Method C-24. 

 (30) "Non-Desert Portion" means all of that portion of San Diego County, State of 

California, lying west of the line described in Subsections (15)(i) through (15)(xii). 

 (31) "NOx" means the sum of all oxides of nitrogen, except for nitrous oxide, 

collectively expressed as nitrogen dioxide. 

 (32) "Orchard or Citrus Grove Heater" means any article, machine, bowl burner 

or contrivance, which is designed for, used, maintained or capable of being used for 

burning any kind of fuel for frost protection of orchards, citrus groves or plant nurseries in 

areas that are not completely enclosed. 

 (33) "Particulate Matter" means any finely divided material which exists as a solid 

or liquid at standard conditions, excluding uncombined water. 

 (34) "PM2.5" means suspended fine particulate matter with an aerodynamic 

diameter less than or equal to a nominal 2.5 micrometers (microns). For non-fugitive 

emissions, test methods specified in 40 CFR 50, Appendix L, shall be used to measure 

PM2.5. 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -6- Rule 2 

 (35) "PM10" means suspended particulate matter with an aerodynamic diameter 

less than or equal to a nominal 10 micrometers (microns). For non-fugitive emissions, test 

methods specified in Title 17, California Code of Regulations, Section 94100 et seq., or 

any applicable test method approved by the Air Pollution Control Officer and EPA shall be 

used to measure PM10. 

 (36) "Permit to Operate" means a written authorization issued by the Air Pollution 

Control Officer pursuant to Rule 10 or Rule 24 for the operation of any product line, 

process, process line, article, machine, equipment or other contrivance, the use of which 

may cause the issuance, reduction, control, or elimination of air contaminants. 

 (37) "Person" means any individual, firm, association, organization, partnership, 

business trust, corporation, company, contractor, supplier, installer, user or owner, or any 

state or local government agency or public district and any officer or employee thereof, or 

the federal government and any officers or employees thereof to the extent authorized by 

federal law, or any other entity whatsoever which is recognized by law as the subject of 

rights and duties. 

 (38) "Portable Equipment" means any article, machine, equipment or other 

contrivance that is routinely moved from one location to another in order to perform its 

function. 

 (39) "Process" means any method, reaction, or operation wherein materials are 

handled or whereby materials undergo physical change (i.e., the size, shape, appearance, 

temperature, state or other physical property of the materials is altered) or chemical change 

(i.e., a substance or substances with different chemical composition or properties are 

formed or created). A process includes all of the equipment and facilities necessary for the 

handling of materials or the completion of the transformation of the materials to produce a 

physical or chemical change. There may be several processes in series or in parallel 

necessary to manufacture a product. 

 (40) "Process Line" means one or more pieces of equipment linked by the process 

flow and producing a product or performing a service such that the product cannot be 

produced or the service cannot be performed if any piece of equipment is removed or not 

functioning. 

(41) "Registration" means the process of obtaining a Certificate of Registration for 

an emission unit. Registration is the same as "permit" as used in Division 26 of the 

California Health and Safety Code, Part 3, Chapter 8 and Part 4, Chapter 4, Articles 2 and 

4, respectively entitled Hearing Board, Variances, and Orders of Abatement. The Air 

Pollution Control Officer and the Hearing Board shall have the same authority concerning 

registration as with permits, and the owner or operator of registered equipment shall be 

entitled to the same privileges and rights granted to a permittee. 

 (42) "Regulation" means one of the major subdivisions contained within the Rules 

and Regulations of the Air Pollution Control District of San Diego County. 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -7- Rule 2 

 (43) "Rule" means any rule contained within the Rules and Regulations of the Air 

Pollution Control District of San Diego County. 

 (44) "SOx" means the sum of all oxides of sulfur, collectively expressed as sulfur 

dioxide. 

 (45) "Standard Conditions" means a temperature of 68°F (20°C) and a pressure of 

14.70 pounds per square inch, absolute (760 mm Hg). 

 (46) "State Implementation Plan (SIP)" means the State prepared plan, approved 

by the United States Environmental Protection Agency (EPA), detailing how National 

Ambient Air Quality Standards will be achieved and maintained. 

 (47) "Stationary Source" or "Source" means an emission unit or aggregation of 

emission units which are located on the same or contiguous properties and which units are 

under common ownership or entitlement to use. Stationary sources also include those 

emission units or aggregation of emission units located in the California Coastal Waters. 

 (48) "Touch-up Operation" means the portion of a coating operation which is 

incidental to the main coating process but necessary to achieve coverage as required or to 

cover minor imperfections, or a coating operation which is necessary to repair minor 

mechanical damage incurred prior to intended use. 

 (49) "Toxic Air Contaminant" means an air contaminant which may cause or 

contribute to an increase in mortality or an increase in serious illness, or which may pose a 

present or potential hazard to human health, including air contaminants listed as such in the 

California Code of Regulations Title 17 Section 93000, and hazardous air pollutants 

identified pursuant to the federal Clean Air Act, Title I, Section 112(b). 

 (50) "Volatile Organic Compound (VOC)" means any volatile compound 

containing at least one atom of carbon excluding carbon monoxide, carbon dioxide, 

carbonic acid, metallic carbides or carbonates, ammonium carbonates, and exempt 

compounds. 

 (51) "VOC Content Per Volume of Coatings, Less Water and Exempt 

Compounds" means the weight of VOC per combined volume of VOC and coating solids 

and is calculated by the following equation: 

 Ccvoc = ((Ws - Ww - Wes)/(Vm - Vw - Ves)) 

 where: 

Ccvoc = VOC content per volume of coating, less water and exempt compounds 

Ws = weight of volatile compounds including water and exempt compounds 

Ww = weight of water 

Wes = weight of exempt compounds 

Vm = volume of material including water and exempt compounds 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -8- Rule 2 

Vw = volume of water 

Ves = volume of exempt compounds 

 (52) "VOC Content Per Volume of Material" means the weight of VOC per 

volume of material and is calculated by the following equation: 

 Cmvoc = (Ws - Ww - Wes)/Vm

 where: 

Cmvoc = VOC content per volume of material 

Ws = weight of volatile compounds including water and exempt compounds 

Ww = weight of water 

Wes = weight of exempt compounds 

Vm = volume of material including water and exempt compounds 

 (53) "Western Section of the Air Pollution Control District of San Diego 

County" means all of that portion of San Diego County, State of California, lying west of 

the following described line: 

 (i) Beginning at the San Diego-Riverside County boundary and running south 

along the range line common to Range 2 West and Range 1 West (San Bernardino 

Base and Meridian); to the point of intersection with the township line common to 

Township 9 South and Township 10 South; 

 (ii) thence east along the township line common to Township 9 South and 

Township 10 South to the point of intersection with the range line common to 

Range 1 West and Range 1 East; 

 (iii) thence south along the range line common to Range 1 West and Range 1 

East to the point of intersection with the township line common to Township 11 

South and Township 12 South; 

 (iv) thence east along the township line common to Township 11 South and 

Township 12 South to the point of intersection with the range line common to 

Range 1 East and Range 2 East; 

 (v) thence south along the range line common to Range 1 East and Range 2 

East to the point of intersection with the United States-Mexico International 

boundary. 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -9- Rule 2 

TABLE 1 EXEMPT COMPOUNDS (Revised 11/04/09) 

I. Negligibly Photochemically-Reactive Organic Compounds

methane 

methylene chloride (dichloromethane) 

1,1,1-trichloroethane(methyl chloroform) 

trichlorofluoromethane (CFC-11) 

dichlorodifluoromethane (CFC-12) 

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

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

chloropentafluoroethane (CFC-115) 

chlorodifluoromethane (HCFC-22) 

chlorofluoromethane (HCFC-31) 

1,1,1-trifluoro-2,2-dichloroethane (HCFC-123) 

1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) 

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

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

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

1-chloro-1-fluoroethane (HCFC-151a) 

3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca) 

1,3-dichloro-1,1,2,2,3-pentafluoropropane (HCFC-225cb) 

difluoromethane (HFC-32) 

trifluoromethane (HFC-23) 

fluoroethane (ethyl fluoride, HFC-161) 

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

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

pentafluoroethane (HFC-125) 

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

1,1-difluoroethane (HFC-152a) 

1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) 

1,1,1,2,3,3-hexafluoropropane (HFC-236ea) 

1,1,1,3,3,3-hexafluoropropane (HFC-236fa) 

1,1,2,2,3-pentafluoropropane (HFC-245ca) 

1,1,2,3,3-pentafluoropropane (HFC-245ea) 

1,1,1,2,3-pentafluoropropane (HFC-245eb) 

1,1,1,3,3-pentafluoropropane( HFC-245fa) 

1,1,1,3,3-pentafluorobutane (HFC-365mfc) 

1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane (C4F9OCH3 or HFE-7100) 
SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

Regulation 1 -10- Rule 2 

Table 1 

Exempt Compounds - Continued 

2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OCH3) 

1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (C4F9OC2H5 or HFE-7200) 

2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OC2H5) 

cyclic, branched, or linear completely methylated siloxanes (VMS) 

1,1,1,2,2,3,3-heptafluoro-3-methoxypropane (n-C3 F7 OCH3 , or HFE-7000) 

3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-(trifluoromethyl)hexane (HFE-7500) 

1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) 

methylformate (HCOOCH3) 

1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-trifluoromethyl-pentane (HFE-7300) 

propylene carbonate 

dimethyl carbonate 

Four classes of perfluorocarbon (PFC) compounds: 

cyclic, branched, or linear, completely fluorinated alkanes 

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

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

unsaturations 

sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only 

to carbon and fluorine 

II. Low Photochemically-Reactive Organic Compounds

acetone 

ethane 

1-chloro-4-trifluoromethyl benzene (parachlorobenzotrifluoride, PCBTF) 

methyl acetate 

perchloroethylene (tetrachloroethylene) 
TABLE 1 EXEMPT COMPOUNDS (Revised [date of adoption])

I. Negligibly Photochemically-Reactive Organic Compounds

methane 

methylene chloride (dichloromethane) 

1,1,1-trichloroethane(methyl chloroform) 

trichlorofluoromethane (CFC-11) 

dichlorodifluoromethane (CFC-12) 

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

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

chloropentafluoroethane (CFC-115) 

chlorodifluoromethane (HCFC-22) 

chlorofluoromethane (HCFC-31) 

1,1,1-trifluoro-2,2-dichloroethane (HCFC-123) 

1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) 

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

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

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

1-chloro-1-fluoroethane (HCFC-151a) 

3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca) 

1,3-dichloro-1,1,2,2,3-pentafluoropropane (HCFC-225cb) 

difluoromethane (HFC-32) 

trifluoromethane (HFC-23) 

fluoroethane (ethyl fluoride, HFC-161) 

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

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

pentafluoroethane (HFC-125) 

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

1,1-difluoroethane (HFC-152a) 

1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) 

1,1,1,2,3,3-hexafluoropropane (HFC-236ea) 

1,1,1,3,3,3-hexafluoropropane (HFC-236fa) 

1,1,2,2,3-pentafluoropropane (HFC-245ca) 

1,1,2,3,3-pentafluoropropane (HFC-245ea) 

1,1,1,2,3-pentafluoropropane (HFC-245eb) 

1,1,1,3,3-pentafluoropropane( HFC-245fa) 

1,1,1,3,3-pentafluorobutane (HFC-365mfc) 

1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane (C4F9OCH3) or HFE-7100)

2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OCH3) 

1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (C4F9OC2H5) or HFE-7200)

2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OC2H5)

cyclic, branched, or linear completely methylated siloxanes (VMS) 

Draft – 09/24/09 

Regulation 1 -1- Rule 2 
Table 1 

Exempt Compounds - Continued 

1,1,1,2,2,3,3-heptafluoro-3-methoxypropane (n-C3 F7 OCH3 , or HFE-7000)

3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-(trifluoromethyl)hexane (HFE-7500)

1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea)

methylformate (HCOOCH3)

1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-trifluoromethyl-pentane (HFE-7300)

propylene carbonate

dimethyl carbonate

Four classes of perfluorocarbon (PFC) compounds: 

cyclic, branched, or linear, completely fluorinated alkanes 

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

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

sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon 

and fluorine 

II. Low Photochemically-Reactive Organic Compounds

acetone 

ethane 

1-chloro-4-trifluoromethyl benzene (parachlorobenzotrifluoride, PCBTF) 

methyl acetate 

perchloroethylene (tetrachloroethylene) 

Draft – 09/24/09 

Regulation 1 -2- Rule 2