Regulatory Text: 
TX Chapter 101.  General Rules 

§101.1.  Definitions.

As approved by EPA November 28, 2000 (65 FR 70792) effective January 29, 2001, TXd13.

NOTES:
*  Left justified number before each paragraph is 40 CFR 52.2270(c) section where paragraph was last approved by EPA.  Paragraphs with "01" were approved with the May 31, 1972 (37 FR 10895), with the Original Texas SIP.  See Texas SIP Map record for Federal Register approval dates and SIP effective dates. 
*  Revisions approved August 8, 1997 (62 FR 44087) at 52.2270(c)(102) effective October 20, 1977, removed the definition of "De minimis impact" from §101.1 and replaced it with a similar definition in TNRCC Regultion VI, §116.10. 
*  Revisions approved July 17, 2000 (65 FR 43986 to 43994), effective August 16, 2000, revmoved the following definitions from §101.1 and added them to TNRCC Regultion VI, §116.12:  Actual emissions; Allowable emissions; Begin actual construction; Building, structure, facility, or installation; Commence; Construction;  De minimis threshold (replaced by De minimis threshold test (netting)); Lowest achievable emission rate; Major facility/stationary source; Major modification; Necessary preconstruction approvals or permits; Net emissions increase; Potential to emit; Secondary emissions; and Table I--Major Source/Major Modification Emission Thresholds.  The following definitions added to §116.12 were not in SIP-approved §101.1:  Contemporaneous period; Offset ratio; Project net; and Stationary source.
*  Definitions of "Reportable quantity (RQ)" and "Reportable upset" were approved by EPA November 28, 2000 (65 FR 70792) effective January 29, 2001, TXd13.
END NOTES


105O   Unless specifically defined in the Texas Clean Air Act (TCAA) or in the rules of the Texas Natural Resource Conservation Commission (commission), the terms used by the commission have the meanings commonly ascribed to them in the field of air pollution control.  In addition to the terms which are defined by the TCAA, the following terms, when used in this chapter, shall have the following meanings, unless the context clearly indicates otherwise.

01      Act - The Texas Clean Air Act, codified as Article 4477-5.

104D    Alcohol (used in offset lithographic printing) - For the purposes of complying with §§115.442, 115.443, 115.445, 115.446, and 115.449 of this title (relating to Offset Lithographic Printing), an alcohol is any of the hydroxyl-containing organic compounds with a molecular weight equal to or less than 74.12, (which includes  methanol, ethanol, propanol, and butanol).


104A    Alcohol substitutes (used in offset lithographic printing) - Nonalcohol additives that contain volatile organic compounds and are used in the fountain solution.  Some additives are used to reduce the surface tension of water; others (especially in the newspaper industry) are added to prevent piling (ink build-up).

01      Ambient air - That portion of the atmosphere, external to buildings, to which the general public has access.

69B     Architectural coating - Any protective or decorative coating applied to the interior or exterior of a building or structure, including latex paint, alkyd paints, stains, lacquers, varnishes, and urethanes.  Excluded from this definition are paints sold in containers of one quart or less; paints used on roadways, pavement, swimming pools, and similar surfaces; aerosol spray products; and concentrated color additives.

01      Article - When followed by a number, "article" refers to provisions of the law as codified in Vernon's Revised Civil Statutes (V.A.C.S) of Texas, 1925, as amended.

105J    Automotive basecoat/clearcoat system (used in vehicle refinishing (body shops)) - A topcoat system composed of a pigmented basecoat portion and a transparent clearcoat portion.  The volatile organic compound (VOC) content of a basecoat (bc)/clearcoat (cc) system shall be calculated according to the following formula:
         
               VOC_bc + (2 x VOC_cc)
VOC T_bc/cc = ----------------------
                        3
where:
VOC T_bc/cc  is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, in the basecoat/ clearcoat system;
VOC_bc is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, of any given basecoat; and
VOC_cc is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, of any given clearcoat.

105J    Automotive precoat (used in vehicle refinishing (body shops)) - Any coating that is applied to bare metal to deactivate the metal surface for corrosion resistance to a subsequent water-based primer.  This coating is applied to bare metal solely for the prevention of flash rusting.

105J    Automotive pretreatment (used in vehicle refinishing (body shops)) - Any coating which contains a minimum of 0.5% acid by weight that is applied directly to bare metal surfaces to etch the metal surface for corrosion resistance and adhesion.

105J    Automotive primer or primer surfacers (used in vehicle refinishing (body shops)) - Any base coat, sealer, or intermediate coat which is applied prior to colorant or aesthetic coats.

69B     Automotive refinishing - The recoating of individual automobiles and light-duty trucks by a commercial operation other than the manufacturer to repair, restore, or alter the exterior finish, including primer, primer surfacer, alkyd enamel, base coat, clear coat, and lacquer application.

105J    Automotive sealers (used in vehicle refinishing (body shops)) - Coatings that are formulated with resins which, when dried, are not readily soluble in typical solvents.  These coatings act as a shield for surfaces over which they are sprayed by resisting the penetration of solvents which are in the final topcoat.

105J    Automotive specialty coatings (used in vehicle refinishing (body shops)) - Coatings or additives which are necessary due to unusual job performance requirements.  These coatings or additives prevent the occurrence of surface defects and impart or improve desirable coating properties. These products include, but are not limited to, uniform finish blenders, elastomeric materials for coating of flexible plastic parts, coatings for non-metallic parts, jambing clear coatings, gloss flatteners, and anti-glare/safety coatings.

105J    Automotive three-stage system (used in vehicle refinishing (body shops)) - A topcoat system composed of a pigmented basecoat portion, a semitransparent midcoat portion, and a transparent clearcoat portion.  The volatile organic compound (VOC) content of a three-stage system shall be calculated according to the following formula:

                 VOC_bc + VOC_mc + (2 x VOC_cc)
VOC T_3-stage = ------------------------------------
                                4
where:
     VOC T_3-stage is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, in the three-stage system;
     VOC_bc is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, of any given basecoat;
     VOC_mc is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, of any given midcoat; and
     VOC_cc is the VOC content, in pounds of VOC per gallon (less water and exempt solvent) as applied, of any given clearcoat.

105J    Automotive wipe-down solutions (used in vehicle refinishing (body shops)) - Any solution used for cleaning and surface preparation.

01      Background - Background concentration is defined as that level of air contaminants that cannot be reduced by controlling emissions from man-made sources.  It is determined by measuring levels in nonurban areas.

104D    Bakery oven - An oven for baking bread or any other yeast-leavened products.

104A    Batch (used in offset lithographic printing) - A supply of fountain solution that is prepared and used without alteration until completely used or removed from the printing process.

88B     Capture efficiency - The amount of volatile organic compounds (VOC) collected by a capture system which is expressed as a percentage derived from the weight per unit time of VOC entering a capture system and delivered to a control device divided by the weight per unit time of total VOC generated by a source of VOC.

88B     Capture system - All equipment (including, but not limited to, hoods, ducts, fans, booths, ovens, dryers, etc.) that contains, collects, and transports an air pollutant to a control device.

88B     Carbon adsorber - An add-on control device which uses  activated carbon to adsorb volatile organic compounds from a gas stream.

88B     Carbon adsorption system - A carbon adsorber with an inlet and outlet for exhaust gases and a system to regenerate the saturated adsorbent.

01      Carbon compounds - Compounds, excluding carbon dioxide, which contain carbon in combination with any other element or elements.  Hydrocarbons, containing hydrogen and carbon, are one category of carbon compounds.

104A    Cleaning solution (used in offset lithographic printing) - Liquids used to remove ink and debris from the operating surfaces of the printing press and its parts.

104D    Clear coat (used in wood parts and products coating) - A coating which lacks opacity or which is transparent and uses the undercoat as a reflectant base or undertone color.

104D    Clear sealers (used in wood parts and products coating) - Liquids applied over stains, toners, and other coatings to protect these coatings from marring during handling and to limit absorption of succeeding coatings.

88B     Coating - A material applied onto or impregnated into a substrate for protective, decorative, or functional purposes. Such materials include, but are not limited to, paints, varnishes,  sealants, adhesives, thinners, diluents, inks, maskants, and temporary protective coatings.

69B     Coating application system - Devices or equipment designed for the purpose of applying a coating material to a surface.  The devices may include, but not be limited to, brushes, sprayers, flow coaters, dip tanks, rollers, knife coaters, and extrusion coaters.

88B     Coating line - An operation consisting of a series of one or more coating application systems and including d flash-off area(s), drying area(s), and oven(s) wherein a surface coating is applied, dried, or cured.

105J    Cold solvent cleaning - A batch process that uses liquid solvent to remove soils from the surfaces of metal parts or to dry the parts by spraying, brushing, flushing, and/or immersion while maintaining the solvent below its boiling point.  Wipe cleaning (hand cleaning) is not included in this definition.

01      Combustion unit - Any boiler plant, furnace, incinerator, flare, engine, or other device or system used to oxidize solid, liquid, or gaseous fuels, but excluding motors and engines used in propelling land, water, and air vehicles.

01      Commercial incinerator - An incinerator used to dispose of waste material from retail and wholesale trade establishments.

105O    Component - A piece of equipment, including, but not limited to, pumps, valves, compressors, and pressure relief valves, which has the potential to leak volatile organic compounds.

07      Condensate - Liquids that result from the cooling and/or pressure changes of produced natural gas.  Once these liquids are processed at gasoline plants or refineries or in any other manner, they are no longer considered condensates.

69B     Consumer-solvent products - Products sold or offered for sale by wholesale or retail outlets for individual, commercial, or industrial use which may contain volatile organic compounds, including household, products, toiletries, aerosol products, rubbing compounds, windshield washer fluid, polishes, and waxes, nonindustrial adhesives, space deodorants, moth control products, or laundry treatments.

88B     Control device - Equipment (such as an incinerator or  carbon adsorber) used to reduce, by destruction or removal, the amount of air pollutant(s) in an air stream prior to discharge to the ambient air.

88B     Control system - A combination of one or more capture  system(s) and control device(s) working in concert to reduce discharges of air pollutants to the ambient air.

105J    Conveyorized degreasing - A solvent cleaning process that uses an automated parts handling system, typically a conveyor, to automatically provide a continuous supply of metal parts to be cleaned or dried using either cold solvent or vaporized solvent.  A conveyorized degreasing process is fully enclosed except for the conveyor inlet and exit portals.

69B     Delivery vessel/tank-truck tank - Any tank-truck or trailer that is equipped with a storage tank having a capacity greater than 1,000 gallons.

01      Domestic wastes - The garbage and rubbish normally resulting from the functions of life within a residence.

01      Downwind level - The concentration of air contaminanats from a source or sources on a property as measured at or beyond the property boundary. 

61      Drum (metal) - Any cylindrical metal shipping container with a nominal capacity equal to or greater than 12 gallons (45.4 liters) but equal to or less than 110 gallons (416 liters).

97O     Emissions unit --- Any part of a stationary source which emits or would have the potential to emit any pollutant subject to regulations under the Federal Clean Air Act.

88B     Exempt solvent - Those carbon compounds or mixtures of carbon compounds used as solvents which have been excluded from the definition of volatile organic compound.

20      External floating roof - A cover or roof in an open top tank which rests upon or is floated upon the liquid being contained and is equipped with a single or double seal to close the space between the roof edge and tank shell.  A double seal consists of two complete and separate closure seals, one above the other, containing an enclosed space between them.

88E     Extreme performance coating - A coating intended for exposure to extreme environmental conditions, such as continuous outdoor exposure; temperatures frequently above 95 degrees C (203 degrees F); detergents; abrasive and scouring agents; solvents; and corrosive solutions, chemicals, or atmospheres.

01      Federal motor vehicle regulation - The Motor Vehicle Air Pollution Standards, Title 45, Subtitle A, Part 85, Code of Federal Regulations.

97O     Federally enforceable --- All limitations and conditions which are enforceable by the Administrator, including those requirements developed pursuant to 40 CFR Parts 60 and 61, requirements within any applicable state implementation plan, any permit requirements  established pursuant to 40 CFR 52.21 or under regulations approved pursuant to 40 CFR Part 51, Subpart I, including operating permits issued under the U.S. Environmental Protection Agency-approved program that is incorporated into the state implementation plan and that expressly requires adherence to any permit issued under such program.

104D    Final repair coat (used in wood parts and products coating) - Liquids applied to correct imperfections or damage to the topcoat.

69B     Flexographic printing process - A method of printing in which the image areas are raised above the non-image areas, and the image carrier is made of an elastomeric material. 

01      Flue - Any duct, stack, chimney, or conduit used to conduct air contaminants into the open air.

01      Forage - Any vegetation which may be consumed by animals.

104A    Fountain solution (used in offset lithographic printing) - A mixture of water, nonvolatile printing chemicals, and an additive (liquid) that reduces the surface tension of the water so that it spreads easily across the printing plate surface.  The fountain solution wets the nonimage areas so that the ink is maintained within the image areas.  Isopropyl alcohol, a volatile organic compound, is the most common additive used to reduce the surface tension of the fountain solution.

97O     Fugitive emission - Any gaseous or particulate contaminant entering the atmosphere which could not reasonably pass through a stack, chimney, vent, or other functionally equivalent opening designed to direct or control its flow.

01      Garbage - Solid waste consisting of putrescible animal and vegetable waste materials resulting from the handling, preparation, cooking, and consumption of food, including waste materials from markets, storage facilities, and handling and sale of produce and other food products.

20      Gasoline - Any petroleum distillate having a Reid Vapor Pressure (RVP) of four pounds per square inch (27.6 kPa) or greater which is produced for use as a motor fuel and is commonly called gasoline.

105J    Gasoline bulk plant - A gasoline loading and/or unloading facility, excluding marine terminals, having a gasoline throughput less than 20,000 gallons (75,708 liters) per day, averaged over any consecutive 30-day period.  A motor vehicle fuel dispensing facility is not a gasoline bulk plant.

105J    Gasoline terminal - A gasoline loading and/or unloading facility, excluding marine terminals, having a gasoline throughput equal to or greater than 20,000 gallons (75,708 liters) per day, averaged over any consecutive 30-day period.

104A    Hand-held lawn and garden and utility equipment - Equipment that requires its full weight to be supported by the operator to perform its function and requires multi-positional operation. 

104A    Heatset (used in offset lithographic printing) - Any operation where heat is required to evaporate ink oil from the printing ink.  Hot air dryers are used to deliver the heat.

105J    High-bake coatings - Coatings designed to cure at temperatures above 194 degrees Fahrenheit.

104A    HVLP spray guns [high-volume low-pressure spray guns] - Equipment used to apply coatings by means of a spray gun which operates between 0.1 and 10.0 pounds per square inch gauge air pressure.

01      Incinerator - An enclosed combustion apparatus and appurtenances thereto which is used in the process of burning wastes for the primary purpose of reducing its volume and weight by removing the combustibles of the waste, and which is equipped with a flue for conducting products of combustion to the atmosphere.  An open-trench type (with closed ends) combustion unit may be considered an incinerator when approved by the Executive Director.

104A    Industrial solid waste - Solid waste resulting from, or incidental to, any process of industry or manufacturing, or mining or agricultural operations, classified as follows:
104A    (A) Class I industrial solid waste or Class I waste is any industrial solid waste designated as Class I by the Executive Director as any industrial solid waste or mixture of industrial solid wastes that because of its concentration or physical or chemical characteristics is toxic, corrosive, flammable, a strong sensitizer or irritant, a generator of sudden pressure by decomposition, heat, or other means, and may pose a substantial present or potential danger to human health or the environment when improperly processed, stored, transported, or otherwise managed, including hazardous industrial waste, as defined in §335.1 of this title (relating to Definitions) and §335.505 of this title (relating to  Class I Waste Determination). 
104A    (B) Class II industrial solid waste is any individual solid waste or combination of industrial solid wastes that cannot be described as Class I or Class III, as defined in §335.506 of this title (relating to Class II Waste Determination).
104A    (C) Class III industrial solid waste is any inert and  essentially insoluble industrial solid waste, including materials such as rock, brick, glass, dirt, and certain plastics and rubber, etc., that are not readily decomposable as defined in §335.507 of this title (relating to Class III Waste Determination).

01      Inorganic fluoride compounds - All inorganic chemicals having an atom or atoms of fluorine in their chemical structure.

105O    Leak - A volatile organic compound concentration greater than 10,000 parts per million by volume (ppmv) or the amount specified by applicable rule, whichever is lower; or the dripping or exuding of process fluid based on sight, smell, or sound.

34      Liquid-mounted seal - A primary seal mounted in continuous contact with the liquid between the tank wall and the floating roof around the circumference of the tank.

104A    Lithogography (used in offset lithographic printing) - A printing process where the image and nonimage areas are chemically differentiated; the image area is oil receptive, and the nonimage area is water receptive.  This method differs from other printing methods, where the image is a raised or recessed surface.

105J    Low-bake coatings - Coatings designed to cure at temperatures of 194 degrees Fahrenheit or less.

01      Major upset - An unscheduled occurrence or excursion of a process or operation that results in an emission of air contaminants that contravenes the Texas Natural Resource Conservation Commission Regulations and/or the intent of the Texas Clean Air Act and is beyond immediate control, or a release that is initiated to protect life in the immediate or adjacent areas.

104A    Marine terminal - Any facility which receives volatile organic compound (VOC) from a marine vessel or loads VOC into a marine vessel.

104A    Marine vessel - Any watercraft used, or capable of being used, as a means of transportation on water, and that is constructed or adapted to carry, or that carries, oil, gasoline, or other volatile organic liquid in bulk as a cargo or cargo residue.

105J    Mechanical shoe seal - A metal sheet which is held vertically against the storage tank wall by springs or weighted levers and is connected by braces to the floating roof.  A flexible coated fabric (envelope) spans the annular space between the metal sheet and the floating roof.

01      Motor vehicle - A self-propelled vehicle designed for transporting persons or property on a street or highway.

104A    Municipal solid waste facility - All contiguous land, structures, other appurtenances, and improvements on the land used for processing, storing, or disposing of solid waste.  A facility may be publicly or privately owned and may consist of several processing, storage, or disposal operational units, e.g., one or more landfills, surface impoundments, or combinations of them.

104A    Municipal solid waste landfill - A discrete area of land or an excavation that receives household waste and that is not a land application unit, surface impoundment, injection well, or waste pile, as those terms are defined under 257.2 of 40 CFR, Part 257.  A municipal solid waste landfill (MSWLF) unit also may receive other types of Resource Conservation and Recovery Act (RCRA) Subtitle D wastes, such as commercial solid waste, nonhazardous sludge, conditionally exempt small-quantity generator waste, and industrial solid waste.  Such a landfill may be publicly or privately owned.  A MSWLF unit may be a new MSWLF unit, an existing MSWLF unit, or a lateral expansion.

104A    Municipal solid waste landfill emissions - Any gas derived from a natural process through the decomposition of organic waste deposited in a municipal solid waste disposal site or from the volatile organic compounds in the waste.

01      Net ground-level concentration - The upwind ground level subtracted from the downwind level.

01      New source - Any stationary source, the construction or modification of which is commenced after the date of adoption of these regulations.
69B     Non-flat architectural coating - Any coating which registers a gloss of 15 or greater on an 85 degree gloss meter or 5 or greater on a 60 degree gloss meter, and which is identified on the label as gloss, semi-gloss, or eggshell enamel coating.

104A    Non-heatset (used in offset lithographic printing) - Any operation where the printing inks are set without the use of heat.  For the purposes of this rule, ultraviolet-cured and electron beam-cured inks are considered non-heatset. 

97O     Nonattainment area - An area which is designated "nonattainment" with respect to any air pollutant within the meaning of the Federal Clean Air Act Section 107(d). 

104A    Offset lithography - A printing process that transfers the ink film from the lithographic plate to an intermediary surface (blanket) which, in turn, transfers the ink film to the substrate.

01      Opacity - The degree to which an emission of air contaminants obstructs the transmission of light expressed as the percentage to which the light is obstructed as measured by an optical instrument or trained observer.

104D    Opaque ground coats and enamels (used in wood parts and products coating) - Colored, opaque liquids applied to wood or wood composition substrates which completely hide the color of the substrate in a single coat. 

105J    Open-top vapor degreasing - A batch solvent cleaning process that is open to the air and which uses boiling solvent to create solvent vapor used to clean or dry metal parts through condensation of the hot solvent vapors on the colder metal parts.

01      Outdoor burning - Any fire or smoke-producing process which is not conducted in a combustion unit.

69B     Packaging rotogravure printing - Any rotogravure printing upon paper, paper board, metal foil, plastic film, or any other substrate which is, in subsequent operations, formed into packaging products or labels.

61      Pail (metal) - Any cylindrical metal shipping container with a nominal capacity equal to or greater than one gallon (3.8 liters) but less than 12 gallons (45.4 liters) and constructed of 29 gauge or heavier material.

75A     Particulate matter - Any material, except uncombined water, that exists as a solid or liquid in the atmosphere or in a gas stream at standard conditions.

75A     Particulate matter emissions - All finely-divided solid or liquid material, other than uncombined water, emitted to the ambient air as measured by EPA Reference Method 5, as specified at Part 60, Appendix A of 40 CFR, modified to include particulate caught by impinger train; by an equivalent or alternative method, as specified at Part 51 of 40 CFR; or by a test method specified in an approved State Implementation Plan.

20      Petroleum refinery - Any facility engaged in producing gasoline, kerosene, distillate fuel oils, residual fuel oils,  lubricants, or other products through distillation of crude oil, or through the redistillation, cracking, extraction or reforming of unfinished petroleum derivatives.

75A     PM-10 or PM10 or PM10 or PM_10 - Particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers as measured by a reference method based on Appendix J of Part 50 of 40 CFR and designated in accordance with Part 53 of 40 CFR, or by an equivalent method  designated with that Part 53.

75A     PM10 emissions - Finely-divided solid or liquid material with an aerodynamic diameter less than or equal to a nominal 10 micrometers emitted to the ambient air as measured by an applicable reference method, or an equivalent or alternative method specified in Part 51 of 40 CFR, or by a test method specified in an approved State  Implementation Plan.

61      Polymer and resin manufacturing process - A process that produces any of the following polymers or resins: polyethylene, polypropylene, polystyrene, and styrene-butadiene latex.

20      Population equivalent - The hypothetical population which would generate an amount of solid waste equivalent to that actually being processed or disposed of based on a generation rate of five pounds per capita per day and applied to situations involving solid waste not necessarily generated by individuals.

88B     Pounds of volatile organic compounds (VOC) per gallon of coating (minus water and exempt solvents) - Basis for emission limits for surface coating processes.  Can be calculated by the following equation:

Pounds of VOC per gallon of coating (minus water and 
     exempt solvents) =   (W_v)/(V_m - V_w - V_cs)

Where:
     W_v = weight of VOC, in pounds, contained in Vm gallons of coating
     V_m = volume of coating, generally assumed to be one gallon Vw = volume of water, in gallons, contained in Vm gallons of coating
     V_cs = volume of exempt solvents, in gallons, contained in Vm gallons of coating 

88B     Pounds of volatile organic compounds (VOC) per gallon of solids - Basis for emission limits for surface coating processes.  Can be calculated by the following equation:

Pounds of VOC per gallon of 
     solids = (W_v)/(V_m - V_v - V_w - V_cs)

Where:
     W_v = weight of VOC, in pounds, contained in Vm gallons of coating
     V_m = volume of coating, generally assumed to be one gallon
     V_v = volume of VOC, in gallons, contained in Vm gallons of coating
     V_w = volume of water, in gallons, contained in Vm gallons of coating
     V_cs = volume of exempt solvents, in gallons, contained in Vm gallons of coating 

88B     Printing line - An operation consisting of a series of one or more printing processes and including associated drying areas.

01      Process or processes - Any action, operation, or treatment embracing chemical, commercial, industrial, or manufacturing factors such as combustion units, kilns, stills, dryers, roasters, and equipment used in connection therewith, and all other methods or forms of manufacturing or processing that may emit smoke, particulate matter, gaseous matter, or visible emissions.

07      Process weight per hour - "Process weight" is the total weight of all materials introduced or recirculated into any specific process which process may cause any discharge into the atmosphere.  Solid fuels charged into the process 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 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 used to conduct the process is idle.  For continuous operation, the "Process Weight Per Hour" will be derived by dividing the process weight for a 24-hour period by twenty-four.

01      Property - All land under common control or ownership on which any source or combination of sources is located, coupled with all improvements on such land, and all fixed or movable objects on such land, or any vessel on the waters of this State which may constitute a source.

69B     Publication rotogravure printing - Any rotogravure printing upon paper which is subsequently formed into books, magazines, catalogues, brochures, directories, newspaper supplements, or other types of printed materials. 

97O     Reconstruction --- (applies only to nonattainment area, new source review rules pursuant to Federal Clean Air Act provisions) - Will be presumed to have taken place where the fixed capital costs of the new component (as cumulated from December 21, 1976) exceeds 50 percent of the fixed capital cost of a comparable entirely new source.

105J    Remote reservoir cold solvent cleaning - Any cold solvent cleaning operation in which liquid solvent is pumped to a sink-like work area that drains solvent back into an enclosed container while parts are being cleaned, allowing no solvent to pool in the work area.

TXd13   (82)  Reportable quantity (RQ) - Is as follows:
               (A)  for individual air contaminant compounds and specifically listed mixtures, either:
                    (i)  the lowest of the quantities:
                         (I)  listed in 40 CFR §302, Table 302.4, the column “final RQ;”
                         (II)  listed in 40 CFR §355, Appendix A, the column “Reportable Quantity;” or
                         (III)  listed as follows:
                              (-a-)  butanes (any isomer) - 5,000 pounds;
                              (-b-) butenes (any isomer, except 1,3-butadiene) - 5,000 pounds;
                              (-c-)  ethylene - 5,000 pounds;
                              (-d-)  carbon monoxide - 5,000 pounds;
                              (-e-)  pentanes (any isomer) - 5,000 pounds;
                              (-f-)  propane - 5,000 pounds;
                              (-g-)  propylene - 5,000 pounds;
                              (-h-)  ethanol - 5,000 pounds;
                              (-i-)  isopropyl alcohol - 5,000 pounds;
                              (-j-)  mineral spirits - 5,000 pounds;
                              (-k-)  hexanes (any isomer) - 5,000 pounds;
                              (-l-)  octanes (any isomer) - 5,000 pounds; 
                              (-m-)  decanes (any isomer) - 5,000 pounds; or
                    (ii)  if not listed in clause (i) of this subparagraph, 100 pounds;
               (B)  for mixtures of air contaminant compounds:
                    (i)  where the relative amount of individual air contaminant compounds is known through common process knowledge or prior engineering analysis or testing, any amount of an individual air contaminant compound which equals or exceeds the amount specified in subparagraph (A) of this paragraph;
                    (ii)  where the relative amount of individual air contaminant compounds in subparagraph (A)(i) of this paragraph is not known, any amount of the mixture which equals or exceeds the amount for any single air contaminant compound that is present in the mixture and listed in subparagraph (A)(i) of this paragraph;
                    (iii)  where each of the individual air contaminant compounds listed in subparagraph (A)(i) of this paragraph are known to be less than 0.02% by weight of the mixture, and each of the other individual air contaminant compounds covered by subparagraph (A)(ii) of this paragraph are known to be less than 2.0% by weight of the mixture, any total amount of the mixture of air contaminant compounds greater than or equal to 5,000 pounds; or
                    (iv)  where natural gas excluding methane and ethane, or air emissions from crude oil are known to be in an amount greater than or equal to 5,000 pounds or associated hydrogen sulfide and mercaptans in a total amount greater than 100 pounds, whichever occurs first;
               (C)  for opacity, an opacity which is equal to or exceeds 15 additional percentage points above the applicable limit, averaged over a six-minute period.  Opacity is the only reportable quantity applicable to boilers or combustion turbines fueled by natural gas, coal, lignite, wood, or fuel oil containing hazardous air pollutants at a concentration of less than 0.02% by weight;
               (D)  for facilities where air contaminant compounds are measured directly by a continuous emission monitoring system providing updated readings at a minimum 15-minute interval an amount, approved by the executive director based on any relevant conditions and a screening model, that would be reported prior to ground level concentrations reaching at any distance beyond the closest facility property line:
                    (i)  less than one half of any applicable ambient air standards; and
                    (ii)  less than two times the concentration of applicable air emission limitations.
(As adopted by TNRCC June 29, 2000, effective July 23, 2000.)


TXd13   (83)  Reportable upset - Any upset which, in any 24-hour period, results in an unauthorized emission of air contaminants equal to or in excess of the reportable quantity as defined in this section.  (As adopted by TNRCC June 29, 2000, effective July 23, 2000.)

69B     Rotogravure printing - The application of words, designs, and/or pictures to any substrate by means of a roll printing technique which involves a recessed image area.  The recessed area is loaded with ink and pressed directly to the substrate for image transfer.

01      Rubbish - Nonputrescible solid waste, consisting of both combustible and noncombustible waste materials; combustible rubbish includes paper, rags, cartons, wood, excelsior, furniture, rubber, plastics, yard trimmings, leaves, and similar materials; noncombustible rubbish includes glass, crockery, tin cans, aluminum cans, metal furniture, and like materials which will not burn at ordinary incinerator temperatures (1,600 degrees F to 1,800 degrees F).

104D    Semitransparent spray stains and toners (used in wood parts and products coating) - Colored liquids applied to wood to change or enhance the surface without concealing the surface, including but not limited to, toners and nongrain-raising stains.

104D    Semitransparent wiping and glazing stains (used in wood parts and products coating) - Colored liquids applied to wood that require multiple wiping steps to enhance the grain character and to partially fill the porous surface of the wood.

104D    Shellacs (used in wood parts and products coating) - Clear or pigmented coatings formulated solely with the resinous secretions of the lac beetle (laccifer lacca), thinned with alcohol, and formulated to dry by evaporation without a chemical reaction.

104A    Sludge - Any solid or semi-solid, or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant; water supply treatment plant, exclusive of the treated effluent from a wastewater treatment plant; or air pollution control equipment.

01      Smoke - Small gas-born particles resulting from incomplete combustion consisting predominately of carbon and other combustible material and present in sufficient quantity to be visible.

104A    Solid waste - Garbage, rubbish, refuse, sludge from a waste water treatment plant, water supply treatment plant, or air pollution control equipment, and other discarded material, including solid, liquid, semisolid, or containerized gaseous material resulting from industrial, municipal, commercial, mining, and agricultural operations and from community and institutional activities.  The term does not include:
104A    (A)  solid or dissolved material in domestic sewage, or solid or dissolved material in irrigation return flows, or industrial discharges subject to regulation by permit issued under the Water Code, Chapter 26;
104A    (B)  soil, dirt, rock, sand, and other natural or man-made inert solid materials used to fill land, if the object of the fill is to make the land suitable for the construction of surface improvements; or
104A    (C)  waste materials that result from activities associated with the exploration, development, or production of oil or gas or geothermal resources, and other substance or material regulated by the Railroad Commission of Texas under the Natural Resources Code, 91.101, unless the waste, substance, or material results from activities associated with gasoline plants, natural gas liquids processing plants, pressure maintenance plants, or repressurizing plants and is hazardous waste as defined by the Administrator of the United States Environmental Protection Agency under the federal Solid Waste Disposal Act, as amended by Resource Conservation and Recovery Act, as amended (42 USC, 6901 et seq).

01      Sour gas - Any natural gas containing more than one and one-half (1 1/2) grains of hydrogen sulfide per one hundred (100) cubic feet, or more than thirty (30) grains of total sulfur per one hundred (100) cubic feet.

01      Sour crude - A crude oil which will emit a sour gas when in equilibrium at atmospheric pressure.

01      Source - A point of origin of air contaminants, whether privately or publicly owned or operated.  Upon request of a source owner, the Executive Director shall determine whether multiple processes emitting air contaminants from a single point of emission will be treated as a single source or as multiple sources.

50      Standard conditions - A condition at a temperature of 68 degrees F (20 degrees C) and a pressure of 14.7 pounds per square inch absolute (101.3 kPa).  Pollutant concentrations from an incinerator will be corrected to a condition of 50% excess air if the incinerator is operating at greater than 50% excess air.

01      Standard metropolitan statistical area - An area consisting of a county or one or more contiguous counties which is officially so designated by the U.S. Bureau of the Budget.

50      Submerged fill pipe - A fill pipe that extends from the top of a tank to have a maximum clearance of six inches (15.2 cm) from the bottom or, when applied to a tank which is loaded from the side, that has a discharge opening entirely submerged when the pipe used to withdraw liquid from the tank can no longer withdraw liquid in normal operation.

01      Sulfur compounds - All inorganic or organic chemicals having an atom or atoms of sulfur in their chemical structure.

69B     Surface coating processes - Operations which utilize a coating application system.
20      (A) Large appliance coating - The coating of doors, cases, lids, panels, and interior support parts of residential and commercial washers, dryers, ranges, refrigerators, freezers, water heaters, dishwashers, trash compactors, air conditioners, and other large appliances.
20      (B) Metal furniture coating - The coating of metal furniture (tables, chairs, waste baskets, beds, disks, lockers, benches, shelves, file cabinets, lamps, and other metal furniture products) or the coating of any metal part which will be a part of a nonmetal furniture product. 
20      (C) Coil coating - The coating of any flat metal sheet or strip supplied in rolls or coils.
50      (D) Paper coating - The coating of paper and pressure-sensitive tapes (regardless of substrate and including paper, fabric, and plastic film) and related web coating processes on plastic film (including typewriter ribbons, photographic film, and magnetic tape) and metal foil (including decorative, gift wrap, and packaging).
20      (E) Fabric coating - The application of coatings to fabric, which includes rubber application (rainwear, tents, and industrial products such as gaskets and diaphragms). 
20      (F) Vinyl coating - The use of printing or any decorative or protective topcoat applied over vinyl sheets or  vinyl-coated fabric.
20      (G) Can coating - The coating of cans for beverages (including beer), edible products (including meats, fruit, vegetables, and others), tennis balls, motor oil, paints, and other mas-produced cans.
20      (H) Automobile coating - The assembly-line coating of passenger cars, or passenger car derivatives, capable of seating 12 or fewer passengers.
50      (I) Light-duty truck coating - The assembly-line coating of motor vehicles rated at 8,500 pounds (3,855.5 kg) gross vehicle weight or less and designed primarily for the transportation of property, or derivatives such as pickups, vans, and window vans.
34      (J) Miscellaneous metal parts and products coating - The coating of miscellaneous metal parts and products in the following categories:
34          (i) Large farm machinery (harvesting, fertilizing, and planting machines, tractors, combines, etc.);
34          (ii) Small farm machinery (lawn and garden tractors, lawn mowers, rototillers, etc.);
34          (iii) Small appliances (fans, mixers, blenders, crock pots, dehumidifiers, vacuum cleaners, etc.);
34          (iv) Commercial machinery (computers and auxiliary equipment, typewriters, calculators, vending machines, etc.); 
34          (v) Industrial machinery (pumps, compressors, conveyor components, fans, blowers, transformers, etc.);
34          (vi) Fabricated metal products (metal-covered doors, frames, etc.); and
88E         (vii) Any other category of coated metal products, except the specified list in subparagraphs (A)-(I) of surface  coating processes, including, but not limited to, those which are included in the Standard Industrial Classification Code
major group 33 (primary metal industries),
major group 34 (fabricated metal products), 
major group 35 (nonelectrical machinery),
major group 36 (electrical machinery),
major group 37 (transportation equipment),
major group 38 (miscellaneous instruments), and
major group 39 (miscellaneous manufacturing industries).
34      (K) Factory surface coating of flat wood paneling - Coating of flat wood paneling products, including hardboard, hardwood plywood, particle board, printed interior paneling, and tileboard.
88E     (L) Mirror backing coating - The application of coatings to the silvered surface of a mirror.
104D    (M) Wood parts and products coating - The coating of wood parts and products, excluding factory surface coating of flat wood paneling.

01      Sweet crude oil and gas - Those crude petroleum hydrocarbons that are not "sour" as defined.

105O    Synthetic Organic Chemical Manufacturing Industry (SOCMI) batch distillation operation - A SOCMI noncontinuous distillation operation in which a discrete quantity or batch of liquid feed is charged into a distillation unit and distilled at one time.  After the initial charging of the liquid feed, no additional liquid is added during the distillation operation.

105O    Synthetic Organic Chemical Manufacturing Industry (SOCMI) batch process - Any SOCMI noncontinuous reactor process which is not characterized by steady-state conditions, and in which reactants are not added and products are not removed simultaneously.

105O    Synthetic Organic Chemical Manufacturing Industry (SOCMI) distillation operation - A SOCMI operation separating one or more feed stream(s) into two or more exit streams, each exit stream having component concentrations different from those in the feed stream(s).  The separation is achieved by the redistribution of the components between the liquid and vapor-phase as they approach equilibrium within the distillation unit.

105O    Synthetic Organic Chemical Manufacturing Industry (SOCMI) distillation unit - A SOCMI device or vessel in which distillation operations occur, including all associated internals (including, but not limited to, trays and packing), accessories (including, but not limited to, reboilers, condensers, vacuum pumps, and steam jets), and recovery devices (such as absorbers, carbon adsorbers, and condensers) which are capable of, and used for, recovering chemicals for use, reuse, or sale.

105O    Synthetic Organic Chemical Manufacturing Industry (SOCMI) reactor process - A SOCMI unit operation in which one or more chemicals, or reactants other than air, are combined or decomposed in such a way, that their molecular structures are altered and one or more new organic compounds are formed.

61      Synthetic organic chemical manufacturing process - A process that produces, as intermediates or final products, one or more of the chemicals listed in Table II of this section.

Table II cited above is at the end of this document.

01      System or device - Any article, chemical, machine, equipment, or other contrivance, the use of which may eliminate, reduce, or control the emission of air contaminants to the atmosphere.

105O    Tank-truck tank - Any storage tank having a capacity greater than 1,000 gallons, mounted on a tank-truck or trailer.  Vacuum trucks used exclusively for maintenance and spill response are not considered to be tank-truck tanks.

104D    Topcoat (used in wood parts and products coating) - A clear liquid which provides the final protective and aesthetic properties to wood finishes.

75A     Total suspended particulate - Particulate matter as measured by the method described in Appendix B of Part 50 of 40 CFR.

69B     Transfer efficiency - The amount of coating solids deposited onto the surface of a part or product divided by the total amount of coating solids delivered to the coating application system.

104A    Transport vessel - Any land-based mode of transportation (truck or rail) that is equipped with a storage tank having a capacity greater than 1,000 gallons which is used primarily to transport oil, gasoline, or other volatile organic liquid bulk cargo.  Vacuum trucks used exclusively for maintenance and spill response are not considered to be transport vessels.

01      Upwind level - The representative concentration of air contaminants flowing onto or across a property as measured at any point.

104A    Utility engines - Small four-stroke and two-stroke, air or liquid cooled, gasoline, diesel, or alternative fuel powered engines under 25 horsepower.  They are designed for powering lawn, garden, and turf maintenance implements, timber operations, generating electricity, and pumping fluids.

69B     Vapor balance system - A system which provides for containment of hydrocarbon vapors by returning displaced vapors from the receiving vessel back to the originating vessel.

31      Vapor-mounted seal - A primary seal mounted so there is an annular space underneath the seal.  The annular vapor space is bounded by the bottom of the primary seal, the tank wall, the liquid surface, and the floating roof or cover.

104A    Vapor recovery system - Any control system which utilizes vapor collection equipment to route volatile organic compound (VOC) to a control device that reduces VOC emissions.

34      Vapor tight - Not capable of allowing the passage of gases at the pressures encountered except where other acceptable leak-tight conditions are prescribed in the Regulations.

104D    Varnishes (used in wood parts and products coating) - Clear wood finishes formulated with various resins to dry by chemical reaction on exposure to air.

105O    Vehicle refinishing (body shops) - The repair and recoating of vehicles, including, but not limited to, motorcycles, passenger cars, vans, light-duty trucks, medium-duty trucks, heavy-duty trucks, buses, and other vehicle body parts, bodies, and cabs by a commercial operation other than the original manufacturer.  The repair and recoating of trailers and construction equipment are not included.

01      Visible emissions - Particulate or gaseous matter which can be detected by the human eye.  The radiant energy from an open flame shall not be considered a visible emission under this definition.

105O    Volatile organic compound - Any compound of carbon or mixture of carbon compounds excluding 
methane, 
ethane, 
1,1,1-trichloroethane (methyl chloroform), 
methylene chloride (dichloromethane), 
perchloroethylene (tetrachloroethylene), 
trichlorofluoromethane (CFC-11), 
dichlorodifluoromethane (CFC-12), 
chlorodifluoromethane (HCFC-22), 
trifluoromethane (HFC-23), 
1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113), 
1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114), 
chloropentafluoroethane (CFC-115), 
1,1,1-trifluoro-2,2-dichloroethane (HCFC-123), 
2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 
pentafluoroethane (HFC-125), 
1,1,2,2-tetrafluoroethane (HFC-134), 
1,1,1,2-tetrafluoroethane (HFC-134a), 
1,1-dichloro-1-fluoroethane (HCFC-141b), 
1-chloro-1,1-difluoroethane (HCFC-142b), 
1,1,1-trifluoroethane (HFC-143a), 
1,1-difluoroethane (HFC-152a), 
parachlorobenzotrifluoride (PCBTF), 
cyclic, branched, or linear completely methylated siloxanes, 
acetone, 
3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca), 
1,3-dichloro-1,1,2,2,3-pentafluoropropane (HCFC-225cb), 
1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC 43-10mee), 
carbon monoxide, 
carbon dioxide, 
carbonic acid, 
metallic carbides or carbonates, 
ammonium carbonate, and 
perfluorocarbon compounds which fall into these classes:
105J    (A)  cyclic, branched, or linear, completely fluorinated alkanes;
105J    (B)  cyclic, branched, or linear, completely fluorinated ethers with no unsaturations;
105J    (C)  cyclic, branched, or linear, completely fluorinated tertiary amines with no unsaturations; and
105J    (D)  sulfur-containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine.

20      Volatile Organic Compound-effluent water separator - Any tank, box, sump, or other container in which any volatile organic compound, floating on or contained in water entering such tank, box, sump, or other container, is physically separated and removed from water prior to outfall, drainage, or recovery of such water.

104D    Wash coat (used in wood parts and products coating) - A low-solids clear liquid applied over semitransparent stains and toners to protect the color coats and to set the fibers for subsequent sanding or to separate spray stains from wiping stains to enhance color depth.

34      Waxy, high pour point crude oil - A crude oil with a pour point of 50 degrees F (10 degrees C) or higher as determined by the American Society for Testing and Materials Standard D97-66, "Test for Pour Point of Petroleum Oils."


61 TABLE II--SYNTHETIC ORGANIC CHEMICALS
(As approved by EPA 06/26/85 (50 FR 26362) at 52.2270(c)(61) effective 07/26/85. The revision to the definition of Syntentic organic chemical manufacturing process approved at 40 CFR 52.2270(c)(97)(i)(O) did not change the definition or list of chemicals but only changed the table number from Table I to Table II.)

OCPDB
No.* Chemical
______________________________________________
20 Acetalnoethyl ether
1340 Diethylene glycol monoethyl ether acetate
1360 Diethylene glycol monomethyl ether
1420 Diethyl sulfate
1430 Difluoroethane
1440 Diisobutylene 
1442 Diisodecyl phthalate
1444 Diisooctyl phthalate
1450 Dikethene
1460 Dimethylamine 
1470 N,N-dimethylaniline
1480 N,N-dimethyl ether
1490 N,N-dimethylformamide
1495 Dimethylhydrazine
1500 Dimethyl sulfate
1510 Dimethyl sulfide
1520 Dimethyl sulfoxide
1530 Dimethyl terephthalate 
1540 3,5-dinitrobenzoic acid
1545 Dinitrophenol 
1550 Dinitrotoluene
1560 Dioxane
1570 Dioxolane
1580 Diphenylamine 
1590 Diphenyl oxide
1600 Diphenyl thiourea
1610 Dipropylene glycol
1620 Dodecene
1630 Dodecylaniline
1640 Dodecylphenol 
1650 Epichlorohydrin
1660 Ethanol
1661 Ethanolamines 
1670 Ethyl acetate 
1680 Ethyl acetoacetate
1690 Ethyl acrylate
1700 Ethylamine
1710 Ethylbenzene
1720 Ethyl bromide 
1730 Ethylcellulose
1740 Ethyl chloride
1750 Ethyl chloroacetate
1760 Ethylcyanoacetate
1770 Ethylene
1780 Ethylene carbonate
1790 Ethylene chlorohydrin
1800 Ethylenediamine
1810 Ethylene dibromide
1830 Ethylene glycol
1840 Ethylene glycol diacetate
1870 Ethylene glycol dimethyl ether
1890 Ethylene glycol monobutyl ether
1900 Ethylene glycol monobutyl ether acetate
1910 Ethylene glycol monoethyl ether
1920 Ethylene glycol monoethyl ether acetate
1930 Ethylene glycol monomethyl ether
1940 Ethylene glycol monomethyl ether acetate
1960 Ethylene glycol monophenyl ether
1970 Ethylene glycol monopropyl ether
1980 Ethylene oxide
1990 Ethyl ether
2000 2-ethylhexanol
2010 Ethyl orthoformate
2020 Ethyl oxalate 
2030 Ethyl sodium oxalacetate
2040 Formaldehyde
2050 Formamide
2060 Formic acid
2070 Fumaric acid
2073 Furfural
2090 Glycerol (Synthetic)
2091 Glycerol dichlorohydrin
2100 Glycerol triether
2110 Glycine
2120 Glyoxal
2145 Hexachlorobenzene
2150 Hexachloroethane
2160 Hexadecyl alcohol
2165 Hexamethylenediamine
2170 Hexamethylene glycol
2180 Hexamethylenetetramine 
2190 Hydrogen cyanide
2200 Hydroquinone
2210 p-hydroxybenzoic acid
2240 Isoamylene
2250 Isobutanol
2260 Isobutyl acetate
2261 Isobutylene
2270 Isobutyraldehyde
2280 Isobutyric acid
2300 Isodecanol
2320 Isooctyl alcohol
2321 Isopentane
2330 Isophorone
2340 Isophthalic acid
2350 Isoprene
2360 Isopropanol
2370 Isopropyl acetate
2380 Isopropylamine
2390 Isopropyl chloride
2400 Isopropylphenol
2410 Ketene
2414 Linear alkyl sulfonate 
2417 Linear alkylbenzene
2420 Maleic acid
2430 Maleic anhydride
2440 Malic acid
2450 Mesityl oxide 
2455 Metanilic acid
2460 Methacrylic acid
2490 Methallyl chloride
2500 Methanol
2510 Methyl acetate
2520 Methyl acetoacetate
2530 Methylamine
2540 n-methylaniline
2545 Methyl bromide
2550 Methyl butynol
2560 Methyl chloride
2570 Methyl cyclohexane
2590 Methyl cyclohexanone
2620 Methylene chloride
2630 Methylene dianiline
2635 Methylene diphenyl diisocyanate
2640 Methyl ethyl ketone
2645 Methyl formate
2650 Methyl isobutyl carbinol
2660 Methyl isobutyl ketone 
2665 Methyl methacrylate
2670 Methyl pentynol
2690 a-methylstyrene
2700 Morpholine
2710 a-naphthalene sulfonic acid
2720 B-naphthalene sulfonic acid
2730 a-naphthol
2740 B-naphthol
2750 Neopentanoic acid
2756 o-nitroaniline
2757 p-nitroaniline
2760 o-nitroanisole
2762 p-nitroanisole
2770 Nitrobenzene
2780 Nitrobenzoic acid (o, m, and p)
2790 Nitroethane
2791 Nitromethane
2792 Nitrophenol
2795 Nitropropane
2800 Nitrotoluene
2810 Nonene
2820 Nonyl phenol
2830 Octyl phenol
2840 Paraldehyde
2850 Pentaerythritol
2851 n-pentane
2855 l-pentene
2860 Perchloroethylene
2882 Perchloromethyl mercaptan
2890 O-phenetidine 
2900 p-phenetidine 
2910 Phenol
2920 Phenolsulfonic acids
2930 Phenyl anthranilic acid
2940 Phenylenediamine
2950 Phosgene
2960 Phthalic anhydride
2970 Phthalimide
2973 B-picoline
2976 Piperazine
3000 Polybutenes
3010 Polyethylene glycol
3025 Polypropylene glycol
3063 Propionaldehyde
3066 Propionic acid
3070 n-propyl alcohol
3075 Propylamine
3080 Propyl chloride
3090 Propylene
3100 Propylene chlorohydrin 
3110 Propylene dichloride
3111 Propylene glycol
3120 Propylene oxide
3130 Pyridine
3140 Quinone
3150 Resorcinol
3160 Resorcylic acid
3170 Salicylic acid
3180 Sodium acetate
3181 Sodium benzoate
3190 Sodium carboxymethyl cellulose
3191 Sodium chloracetate
3200 Sodium formate
3210 Sodium phenate
3220 Sorbic acid
3230 Styrene
3240 Succinic acid 
3250 Succinonitrile
3251 Sulfanilic acid
3260 Sulfolane
3270 Tannic acid
3280 Terephthalic acid
3290 and 3291 Tetrachloroethanes
3300 Tetrachlorophthalic anhydride
3310 Tetraethyllead
3320 Tetrahydronaphthalene
3330 Tetrahydrophthalic anhydride
3335 Tetramethyllead
3340 Tetramethylenediamine
3341 Tetramethylethylenediamine
3349 Toluene
3350 Toluene-2,4-diamine
3354 Toluene-2,4-diisocyanate
3355 Toluene diisocyanates (mixture)
3360 Toluene sulfonamide
3370 Toluene sulfonic acids 
3380 Toluene sulfonyl chloride
3381 Toluidines
3390, 3391, and 3393 Trichlorobenzenes
3395 1,1,1-trichloroethane
3400 1,1,2-trichloroethane
3410 Trichloroethylene
3411 Trichlorofluoromethane 
3420 1,2,3-trichloropropane 
3430 1,1,2-trichloro-1,2,2-trifluoroethane
3450 Triethylamine 
3460 Triethylene glycol
3470 Triethylene glycol dimethyl ether
3480 Triisobutylene
3490 Trimethylamine
3500 Urea 
3510 Vinyl acetate 
3520 Vinyl chloride
3530 Vinylidene chloride
3540 Vinyl toluene 
3541 Xylenes (mixed)
3560 o-xylene
3570 p-xylene
3580 Xylenol
3590 Xylidine
_______________________________________

*The OCPDB Numbers are reference in indices assigned to the various chemicals in the Organic Chemicals Producers Data Base developed by EPA.


*********** end tx 101.1 as approved by epa 11/28/2000 ****TXd13*****dzb**