Santa Barbara County APCD Rule 102 102 - 1 March 17, 2011 [date of amended rule adoption] 

RULE 102. DEFINITIONS. (Adopted 10/18/1971, revised 1/12/1976, readopted 10/23/1978, revised 

7/11/1989, 7/10/1990, 7/30/1991, 7/18/1996, 4/17/1997, 1/21/1999, 5/20/1999, 6/19/2003, 

1/20/2005, 6/19/2008, 1/15/2009, 9/20/2010, 1/20/2011, and 3/17/2011, and [date of amended 

rule adoption])

These definitions apply to the entire rulebook. Definitions specific to a given rule are defined in that rule or in the 

first rule of the relevant regulation. Except as otherwise specifically provided in these Rules 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. 

[. . .] 

“Aerosol Product” means a hand-held, non-refillable container that expels pressurized product by means of a 

propellant-induced force.

[. . .] 

“Avionic Equipment” means any electronic system used on any aircraft, aerospace vehicle, satellite, or space 

vehicle.

[. . .] 

“Capture Efficiency” means the percentage by weight of affected pollutants delivered to a control device 

divided by the weight of total affected pollutants generated by the source. 

[. . .] 

“Carbon Adsorber” means a bed of activated carbon into which an air-solvent gas-vapor stream is routed and 

which adsorbs the solvent on the carbon. 

[. . .] 

“Catalytic Incinerator” means any device that burns reactive organic compounds or toxic air contaminants in 

air using a material that increases the rate of combustion without itself undergoing a net chemical change in 

the process. Common catalyst materials include but are not limited to, platinum alloys, chromium, copper 

oxide, and cobalt. 

[. . .] 

“Control Device” means any destruction and/or recovery equipment used to destroy or recover affected 

pollutant emissions generated by a regulated operation. 

“Control Device Efficiency” means the percentage of affected pollutants entering a control device that is not 

present in the exhaust to the atmosphere of that control device. 

[. . .] 

“Electronic Components” means the portions of an assembly, including, but not limited to: circuit card 

assemblies, printed wire assemblies, printed circuit boards, soldered joints, ground wires, bus bars, magnetic 

tapes and tape drive mechanisms, discs and disc drive mechanisms, electro-optical devices (e.g., optical 

filters, sensor assemblies, infrared sensors, charged coupled devices, thermal electric coolers, and vacuum 

assemblies), solid state components, semiconductors (e.g., diodes, zeners, stacks, rectifiers, integrated 

microcircuits, transistors, solar cells, light sensing devices, and light-emitting devices), and other electrical 

fixtures, except for the actual cabinet in which the components are housed.
Santa Barbara County APCD Rule 102 102 - 2 March 17, 2011 [date of amended rule adoption] 

“Electrostatic Spray” means any method of applying a spray coating in which an electrical charge is applied 

to the coating and the substrate is grounded. The coating is attracted to the substrate by the electrostatic 

potential between them. 

[. . .] 

“Enclosed Cleaning System” means any application equipment cleaner (e.g., an enclosed gun washer) that 

totally encloses spray guns, cups, nozzles, bowls, and other parts during solvent washing, rinsing, and 

draining procedures. An enclosed cleaning system for cleaning application equipment is not a solvent 

cleaning machine.

 [. . .] 

“Exempt Compound” means any compound listed as an exempt compound in the definition of “Reactive 

Organic Compound.” Tertiary-butyl acetate (also known as t-butyl acetate or tBAc) shall be considered 

exempt as a reactive organic compound only for purposes of reactive organic compound emissions limitations 

or reactive organic compound content requirements and shall be considered a reactive organic compound for 

purposes of all recordkeeping, emissions reporting, photochemical dispersion modeling, and inventory 

requirements which apply to reactive organic compounds.

[. . .] 

“Fluid System” means a power transmission system that uses the force of flowing liquids and gases to 

transmit power. Fluid systems include hydraulic systems and pneumatic systems. 

“Fluorinated Gases” means a compound that contains fluorine and exists in a gaseous state at 25 degrees 

Celsius and 1 atmosphere of pressure. Fluorinated gases include, but are not limited to: 

1. hexafluoroethane (C2F6), (CFC-116), 

2. octafluoropropane (C3F8), (PFC 218),

3. octafluorocyclopentene (C5F8), (PFC C-1418),

4. tetrafluoromethane (CF4), (CFC-14),

5. trifluoromethane (CHF3), (HFC-23),

6. difluoromethane (CH2F2), (HFC-32),

7. octafluorocyclobutane (c-C4F8), (RC 318),

8. octafuorotetrahydrofuran (C4F8O),

9. hexafluoro-1,3-butadiene (C4F6),

10. carbon fluoride oxide (COF2), 

11. nitrogen trifluoride (NF3), and

12. sulfur hexafluoride (SF6).

[. . .] 

“Grams of Reactive Organic Compound Per Liter of Material” means the weight of reactive organic 

compound per volume of material and can be calculated by the following equation: 

 Ws - Ww - We 

Grams of reactive organic compounds per liter of material = 

 Vm

Where: Ws = Weight of volatile compounds in grams 

 Ww = Weight of water in grams 

 We = Weight of exempt compounds in grams 

 Vm = Volume of material in liters 

[. . .] 
Santa Barbara County APCD Rule 102 102 - 3 March 17, 2011 [date of amended rule adoption] 

“High-Precision Optics” means any optical element used in an electro-optical device that is designed to 

sense, detect, or transmit light energy, including specific wavelengths of light energy and changes in light 

energy levels. 

[. . .] 

“Natural Draft Opening” means any opening in a room, building, or total enclosure that remains open during 

operation of the facility and that is not connected to a duct in which a fan is installed. The rate and direction 

of the natural draft through such an opening is a consequence of the difference in pressures on either side of 

the wall containing the opening. 

[. . .] 

“Operating Parameter Value” means any minimum or maximum value established for a control equipment 

or process parameter which, if achieved by itself or in combination with one or more other operating 

parameter values, determines that an owner or operator has continued to comply with an applicable emission 

limitation.

[. . .] 

“Overall Efficiency” means the emission reduction, expressed as a percentage that results from the combined 

effect of capture and control of affected pollutants (capture efficiency multiplied by control efficiency).

[. . .] 

“Photoresist Coating” means any coating applied directly to a substrate to protect surface areas when 

chemical milling, etching, or other chemical surface operations are performed on the substrate. 

[. . .] 

“Reactive Organic Compound” means any compound containing at least one (1) atom of carbon, except for 

the following exempt compounds: 

1. acetone 

2. ammonium carbonate 

3. carbon dioxide 

4. carbon monoxide 

5. carbonic acid 

6. dimethyl carbonate 

7. ethane 

8. metallic carbides or carbonates 

9. methane 

10. methyl acetate 

11. methyl chloroform (1,1,1-trichloroethane) 

12. methyl formate; HCOOCH3

13. cyclic, branched, or linear completely methylated siloxane compounds 

14. methylene chloride 

15. parachlorobenzotrifluoride 

16. perchloroethylene (tetrachloroethylene) 

17. the following four classes of perfluorocarbon (PFC) compounds: 

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

b. cyclic, branched, or linear, completely fluorinated ethers with no unsaturations, 
Santa Barbara County APCD Rule 102 102 - 4 March 17, 2011 [date of amended rule adoption] 

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

and 

d. sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to 

carbon and fluorine. 

18. propylene carbonate 

19. tertiary-butyl acetate; C6H12O2 (“acetic acid, 1,1-dimethylethyl ester”)

Tertiary-butyl acetate (also known as t-butyl acetate or tBAc) shall be considered exempt as a 

reactive organic compound only for purposes of reactive organic compound emissions limitations 

or reactive organic compound content requirements and will continue to shall be considered a 

reactive organic compound for purposes of all recordkeeping, emissions reporting, photochemical 

dispersion modeling, and inventory requirements which apply to reactive organic compounds. 

20. CFC-11 (trichlorofluoromethane) 

21. CFC-12 (dichlorodifluoromethane) 

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

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

24. CFC-115 (chloropentafluoroethane) 

25. HCFC-22 (chlorodifluoromethane) 

26. HCFC-31 (chlorofluoromethane) 

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

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

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

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

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

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

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

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

35. HFC-23 (trifluoromethane) 

36. HFC-32 (difluoromethane) 

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

38. HFC-125 (pentafluoroethane) 

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

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

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

42. HFC-152a (1,1-difluoroethane) 

43. HFC-161 (ethylfluoride) 

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

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

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

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

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

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

4950. HFC-245fa (1,1,1,3,3-pentafluoropropane) 

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

52. HFE-7000; n-C3F7OCH3; (1,1,1,2,2,3,3-heptafluoro-3-methoxy-propane) 

513. HFE-7100; (CF3)2CFCF2OCH3; (2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane) or 

C4F9OCH3; (1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-butane) 

524. HFE-7200; (CF3)2CFCF2OC2H5; (2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane) or 

C4F9OC2H5; (1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane) 
Santa Barbara County APCD Rule 102 102 - 5 March 17, 2011 [date of amended rule adoption] 

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

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

Rule 202.D.10.l.1 requires an Authority to Construct and Permit to Operate when using more than one gallon 

per year per stationary source of any one of the following exempt compounds: 

 (6) dimethyl carbonate, (37) HFC-43-10mee, 

(12) methyl formate, (50) HFC-245fa, 

(33) HCFC-225ca, (51) HFC-365mfc, or 

(34) HCFC-225cb, (53) HFE-7100 [(CF3)2CFCF2OCH3 or C4F9OC2H5] 

Rule 202.D.10.l.2 requires an Authority to Construct and Permit to Operate when using more than one gallon 

per year per stationary source of: (19) tertiary-butyl acetate. 

The one gallon per year per stationary source limit is a per compound limit for each compound in aggregate 

for the entire stationary source and includes any amounts of the compound used in mixed or diluted product. 

“Reactive Organic Compound Composite Partial Pressure” means the sum of the partial pressures of 

compounds defined as reactive organic compounds. Reactive organic compound composite pressure shall be 

calculated as follows: 

  

¦ ¦

¦

 

 

 

 n

e

n

i 1

w w e e i i

i

n

i

i i

c

W MW W MW W MW

 W VP MW

PP

1

1

/ / /

/

Where: Wi = Weight of the “i”th reactive organic compound, in grams 

 Ww = Weight of water, in grams 

 We = Weight of the “e”th exempt compound, in grams 

 MWi = Molecular weight of the “i”th reactive organic compound, in grams per grams-mole 

 MWw = Molecular weight of water, in grams per grams-mole 

 MWe = Molecular weight of the “e”th exempt compound, in grams per grams-mole 

 PPc = Reactive organic compound composite partial pressure at 20 degrees Celsius, in 

 millimeters of mercury 

 VPi = Vapor pressure of the “i”th reactive organic compound at 20 degrees Celsius, in 

millimeters of mercury 

 [. . .] 

“Scientific Instrument” means an instrument, including the components, assemblies, and subassemblies used 

in their manufacture, and associated accessories and reagents, that is used for the detection, measurement, 

analysis, separation, synthesis, or sequencing of various compounds. 

[. . .] 

“South Coast Air Quality Management District Method 303-91, “Determination of Exempt 

Compounds,” August 1996,” means the test method adopted by and in effect by the South Coast Air Quality 

Management District on [date of amended rule adoption]. 

“South Coast Air Quality Management District Method 313-91, “Determination of Volatile Organic 

Compounds by Gas Chromatography-Mass Spectrometry,” June 1993,” means the test method adopted 

by and in effect by the South Coast Air Quality Management District on [date of amended rule adoption].

“Space Vehicle” means any man-made device, either manned or unmanned, designed for operation beyond 

earth's atmosphere. This definition includes integral equipment such as models, mock-ups, prototypes, 

molds, jigs, tooling, hardware jackets, and test coupons. Also included is auxiliary equipment associated with 

test, transport, and storage, which through contamination can compromise the space vehicle performance. 
Santa Barbara County APCD Rule 102 102 - 6 March 17, 2011 [date of amended rule adoption] 

[. . .] 

“Temporary Total Enclosure” means any total enclosure that is constructed for the sole purpose of 

measuring the emissions from an affected source that are not delivered to an emission control device. A 

temporary total enclosure must be constructed and ventilated (through stacks suitable for testing) so that it has 

minimal impact on the performance of the permanent emission capture system. A temporary total enclosure 

will be assumed to achieve total capture of fugitive emissions if it meets the requirements found in 40 CFR 

Section 63.750(g)(4) and if all natural draft openings are at least four duct or hood equivalent diameters away 

from each exhaust duct or hood. Alternatively, the owner or operator may apply to the Control Officer for 

approval of a temporary enclosure on a case-by-case basis.

“Thermal Incinerator” means any device that burns reactive organic compounds or toxic air contaminants in 

air by direct application of heat. Thermal incinerators are usually equipped with burners, refractory lined 

chambers, heat recovery equipment, and process controllers. 

“Total Enclosure” means any permanent structure that is constructed around a gaseous emission source so 

that all gaseous pollutants emitted from the source are collected and ducted through a control device, such 

that 100 percent capture efficiency is achieved. There are no fugitive emissions from a total enclosure. The 

only openings in a total enclosure are forced makeup air and exhaust ducts and any natural draft openings 

such as those that allow raw materials to enter and exit the enclosure for processing. All access doors or 

windows are closed during routine operation of the enclosed source. Brief, occasional openings of such doors 

or windows to accommodate process equipment adjustments are acceptable, but if such openings are routine 

or if an access door remains open during the entire operation, the access door must be considered a natural 

draft opening. The average inward face velocity across the natural draft openings of the enclosure shall be 

calculated including the area of such access doors. The drying oven itself may be part of the total enclosure. 

An enclosure that meets the requirements found in 40 CFR Section 63.750(g)(4) is a permanent total 

enclosure. 

[. . .] 

“Transfer Efficiency” means the ratio of the weight of coating solids adhering to the object being coated to 

the weight of coating solids used in the application process, expressed as a percentage. 

“Waste Solvent Residue” means sludge that may contain dirt, oil, metal particles, and/or other undesirable 

waste products concentrated after heat distillation of solvent either in a solvent cleaning machine itself or 

after distillation in a separate still. 

[. . .] 

 APPROVED AS TO FORM: 

 

 DENNIS A. MARSHALL 

 SANTA BARBARA COUNTY COUNSEL 

 By____________________________ 

 Deputy 

 Attorneys for the Santa Barbara County 

 Air Pollution Control District