STATE OF RHODE ISLANDANDPROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

OFFICE OF AIRRESOURCES 

### RHODE ISLANDAIR POLLUTIONCONTROL GENERAL DEFINITIONS REGULATION

Effective: 19July 2007 LastAmended 9 October 2008

AUTHORITY: These regulations are authorized pursuant to R.I
. Gen
. Laws § 42- 17.1-2(s) and 23-23, as amended, and have been promulgated pursuant to the procedures set forth in the R.I
. Administrative Procedures Act, R.I
. Gen
. Laws Chapter 42-35
.



# RECEIVEED SEP 1 ~a 2nQ~

CF t ; ADMltv(STRAT;?/E RE~C--120sSTATE OF RHODE ISLANDANDPROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

OFFICE OFAIRRESOURCES AIRPOLLUTIONCONTROL GENERAL DEFINITIONS REGULATION Applicability Unless otherwise expressly defined by an individual Air Pollution Control Regulation, theterms, definitions and unit of measure abbreviations contained herein shall be generally applicable to all Rhode Island Air Pollution Control Regulations adopted or amended at the same time as or after the adoption ofthese definitions
. Definitions "Act" or "Clean Air Act" or "CAA" means the Federal CleanAir Act, as amended 42 U .S.C
. 7401, et seq. "Actual heat input" means the gross heat release potential based upon the actual BTUcontent ofthe fossil fuel being burned and the rate atwhich it is burned
. "Administrator" means the Administrator of the United States Environmental Protection Agency or the Administrator's duly authorized representative. "Aerodynamic downwash" means the rapid descent ofa plume to ground level with little dilution and dispersion due to alteration ofbackground air flow characteristics caused by the presenceof buildings or other obstacles in thevicinity ofthe emission point
. "Air contaminant" means soot, cinders, ashes, any dust, fumes, gas, mist, smoke, vapor, odor, toxic or radioactive material, particulate matter, or any combination of these
. "Air pollution" means the presence in the outdoor atmosphere of one or more air contaminants in sufficient quantities which, either alone or in connection with other emissions, by reason of their concentration and duration, may be injurious to human, plant or animal life, or cause damage to property or which unreasonably interferes with the enjoyment of life and property
. "Air pollution control system" means a system, device or equipment designed and installed primarily for the purpose of reducing or eliminating the emission ofair contaminants to the atmosphere
. "Best available control technology" or "BACT" means an emissions limitation (including a visible emissions standard) based on the maximum degree of reduction for each air pollutant which would be emitted fromany proposed stationary source or modification which the Director, on a case-by-case basis, taking into account energy, environmental and economic impacts and other costs, determines is achievable for such stationary source or modification through application of production processes or available methods, systems and techniques,
Page I of I 1including fuel cleaning, clean fuels, or treatment or innovative fuel combustion techniques for

control ofsuch pollutant
. In no event shall application ofbest available control technology result in emissions ofany pollutant which would exceed the emissions allowed by any applicable state or federal air pollution control rule or regulation
. Ifthe Director determines that technological or economic limitations on the application of measurement methodology to a particular emissionsunit would makethe imposition ofair emissions standards infeasible, a design, equipment, workpractice, operational standard or combination thereof, may be prescribed instead to satisfy the requirement of best available control technology

. Such standard shall tothe degree possible set forth the emission reduction achievable by implementation ofsuch design, equipment, work practice or operation and shall provide for compliance by means which achieve equivalent results
. °`Biodiesel" means a fuel for diesel engines derived fromnatural oils, such as soybean oils, and which meets the American Society for Testing and Materials specifications ofASTM D 6751 and is registered with the US EPA as a fuel and a fuel additive under Section 211(b) of the Clean Air Act
. "CFR" means the Code of Federal Regulations

. "Cold Cleaning" means an organic solvent cleaning process which cleans and removes contaminants or water fromsurfaces by spraying, brushing, flushing, immersing, or drying parts
. Cleaning machines that use heated, nonboiling solvent to clean the parts are classified as cold cleaning machines
. Wipe cleaning is not included in this definition
. "Department" means the Rhode Island Department of Environmental Management
. "Director" means the Director ofthe Rhode Island Department of Environmental Management or any subordinate or subordinates to whomhe or she has delegated the powers and duties vested in himor her by Title 23, Chapter 23, Section 5 ofthe General Laws of Rhode Island

. "Distillate Oil" means fuel oil that complies with the specifications for fuel oil numbers 1 or 2, as defined by the American Society for Testing and Materials in ASTM D396-78, "Standard Specification for Fuel Oils"
. "Division" means the Rhode Island Department of Environmental Management's Office ofAir Resources or its predecessor agencies, the Division ofAir Resources and the Division ofAir and Hazardous Materials

. "Emissions unit" means any part ofa stationary source which emits or would have the potential to emit any air pollutant (including fugitive emissions)
. This termis not meant to alter or affect the definition of the term"unit" for purposes ofTitle IV ofthe Act

. "Enforceable document" means a major or minor source permit issued pursuant to the requirements ofAir Pollution Control Regulation No
. 9, an operating permit or emissions cap issued pursuant to the requirements ofAir Pollution Control Regulation No
. 29, an air toxics operating permit issued pursuant to the requirements ofAir Pollution Control Regulation No
. 22, a consent agreement or an approval issued pursuant to the requirements ofAir Pollution Control Regulation Nos
. 15, 19, 21, 26, 27, 30or 35
. Page 2of 11"EPA" means the United States Environmental Protection Agency
.

"Facility" or "stationary source" means all air pollutant-emitting activities which belong to the same industrial grouping, are located on one or more contiguous or adjacent properties, and are under the control ofthe same person (or persons under common control)
. Pollutantemitting activities shall be considered as part ofthe same industrial grouping ifthey belong to the same "major group" (i .e. which have the same two-digit code) as described in the Standard Industrial Classification Manual, 1987
. A facility or stationary source may consist of one or more emissions units
. Afacility or stationary source does not include emissions resulting directly froman internal combustion engine for transportation purposes, emissions froma nonroad engine or the activities of any vessel
. "Federally Enforceable" means all limitationsand conditions which are enforceable bythe Administratorofthe U

.S
. Environmental Protection Agency including, but notlimited to,those requirements developed pursuantto 40CFRPart 60 (New Source Performance Standards), 40 CFRPart 61 (National Emission Standards for Hazardous Air Pollutants), 40CFRPart 63 (National Emission Standards for Hazardous Air Pollutants for Source Categories), requirements within the State Implementation Plan,those requirements in operating permits issued pursuant to AirPollution Control Regulation No
. 29or 40 CFRPart 71 (exceptthose listed as 'Not Federally Enforceable"), those requirements in majoror minor source permits issued pursuant to Air Pollution Control Regulation No
. 9, to the extent the regulation is a part ofthe State Implementation Plan and thoserequirements in emissions caps issued pursuant to Air Pollution Control Regulation No
. 29
. "Fossil fuel" means natural gas, petroleum, coal and any formof solid, liquid or gaseous fuel derived fromsuch materials for the purpose ofcreating useful heat
. "Fossil fuel fired steamor hot water generating unit" means a furnace or boiler used in the process of burning fossil fuel for the purpose of producing steamor hot water by heat transfer
. "Fuel oil" means anyvirgin distillate oil, virgin residual oil, biodiesel or a blend ofthese
. "Fugitive emissions" means those emissions which could not reasonably pass through a stack, chimney, vent or other functionally equivalent opening
. "Good engineering practice" or "GEP" means, with respect to stack heights, the height
. necessary to insure that emissions fromthe stack do not result in excessive concentrations of any air pollutant in the immediate vicinity of the source as a result of aerodynamic downwash, eddies and wakes which may be created by the source itself, nearby structures or nearby terrain obstacles as calculated according to the Rhode Island Guideline on Air Quality Modeling "Halogenated Organic Compound" and "HOC" means the following compounds:

(a) CFC-11 (trichlorofluoromethane) (b) CFC-12 (dichlorodifluoromethane) (c) CFC-113 (1,1,1-trichloro2,2,2-trifluoroethane) (d) CFC-114 (1,2-dichloro 1,1,2,2-tetrafluoroethane)
Page 3 of 1 1(e) (f) (g) (h) (i) (1) (k) (1) (m) (n) (o) (p) (q) (r) CFC-l15 (chloropentafluoroethane) HCFC-22 (chlorodifluoromethane) HCFC-31 (chlorofluoromethane) HCFC-123 (1,1,1-trifluoro 2,2-dichloroethane) HCFC 123a (1,2-dichloro-1,1,2-trifluoroethane) HCFC-124 (2-chloro 1,1,1,2-tetrafluoroethane) HCFC-141b (1,1-dichloro 1-fluoroethane) HCFC-142b (1-chloro 1,1-difluoroethane) HCFC-151a (1-chloro-l-fluoroethane) HCFC-225ca (3,3-dichloro-1,1,1,2,2-pentafluoropropane) HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane) methyl chloroform(1,1,1-trichloroethane) methylene chloride (dichloromethane) perchloroethylene "Hazardous Air Pollutant" and "HAP" means an air pollutant which has been listed pursuant to Section 112(b) ofthe CleanAir Act Amendments of 1990
. "Heat input capacity" means the manufacturer's or designer's guaranteed maximum rate of heat input, whichever is greater
. "Lowest achievable emission rate" or "LAER" means, for any stationary source, the more stringent rate ofemissions based on the following: (1) The most stringent emission limitation which is contained in the implementation plan of any state for such class or category ofstationary source, unless the owner or operator of the proposed stationary source demonstrates that such limitations are not achievable; or (2) The most stringent emission limitation which is achieved in practice by such class or category ofstationary source. This limitation, when applied to a modification, means the lowest achievable emission rate for the new or modified installation within the stationary source. In no event shall the application ofthis termpermit a proposed new or modified stationary source to emit any pollutant in excess of the amount allowable under applicable new

source performance standards
. "Natural gas" means a naturally occurring mixture of hydrocarbon and non hydrocarbon gases found in geologic formations beneath the earth's surface, ofwhich the principal constituent is methane
. "Nitrogen oxides" means nitric oxide (NO), nitrogen dioxide (NOZ) and any other species of nitrogen oxides, expressed as the molecular weight ofN02- "Nonroad engine" means: (a) Except as discussed in paragraph (b) ofthis definition, a nonroad engine is any internal
Page 4of 11combustion engine: (1) In or on a piece ofequipment that is self-propelled or serves a dual purpose by both propelling itself and performing another function (such as garden tractors, off-highway mobile cranes and bulldozers) ; or (2) In or on a piece ofequipment that is intended to be propelled while performing its function (such as lawnmowers and string trimmers) ; or (3) That, by itself or in or on a piece ofequipment, is portable or transportable, meaning designed to be and capable ofbeing carried or moved fromone location to another
. Indicia oftransportability include, but are not limited to, wheels, skids, carrying handles, dolly, trailer, or platform
. (b) An internal combustion engine is not a nonroad engine if : (1) the engine is used to propel a motorvehicle or a vehicle used solely for competition, or is subject to standards promulgated under section 202 ofthe Act; or (2) the engine is regulated by a federal New Source Performance Standard promulgated under section 111 oftheAct; or (3) the engine otherwise included in paragraph (a) (3) of this definition remains or will remain at a location for more than 12 consecutive months or a shorter period of time for an engine located at a seasonal source. A location is any single site at a building, structure, facility, or installation
. Any engine (or engines) that replace an engine at a location and that is intended to performthe same or similar function as the engine replaced will be included in calculating the consecutive time period
. An engine located at a seasonal source is an engine that remains at a seasonal source during the full annual operating period of the seasonal source. A seasonal source is a stationary source that remains in a single location on a permanent basis (i .e., at least two years) and that operates at that single location approximately three months (or more) each year. This paragraph does not apply to an engine after the engine is removed fromthe location
. "Opacity" means the degree to which air contaminants reduce the transmission of light and obscure a contrasting background
. "Organic Solvent Cleaning" means the process ofcleaning contaminants or water from surfaces by cold cleaning or vapor cleaning using Volatile Organic Compounds (VOC) or volatile Hazardous Air Pollutants. "Owner or operator" means any person who owns, leases, operates, controls orsupervises any building, structure, facility, installation or emissions unit which directly or indirectly results or may result in emission of any air contaminant
. "Particulate matter" means any material, other than uncombined water, that is or has been airborne and exists as a liquid or solid at ambient conditions
. "Permanent total enclosure" means a permanently installed enclosure that completely surrounds a source ofemissions such that all VOCemissions are captured and contained for
Page 5 of l 1discharge to a control device andwhich meets the specifications given in Method 204or 40

CFRPart 51, Appendix M
. "Person" means an individual, trust, firm,joint stock company, corporation (including a quasigovernmental corporation), partnership, limited liability company (LLC), association, syndicate, municipality, municipal or state agency, fire district, club, non-profit agency or any subdivision, commission, department, bureau, or agency ofstate or federal government (including a quasi-governmental corporation) or ofany interstate body
. "Potential to emit" or "potential emissions" means: (a) The maximum

capacity ofa stationary source to emit a pollutant under its physical or operational design
. Any physical or operational limitation on the capacity ofa source to emit a pollutant, including air pollution control equipment and restrictions on the hours ofoperation or on the type or amount of material combusted, stored or processed, shall be treated as part of its design only ifthe limitation or the effect it would have on emissions is federally enforceable

. Secondary emissions do not count in determining the potential to emit ofa stationary source. This termdoes not alter or affect the use ofthis termfor any other purposes under the Act, or the term"capacity factor" as used in Title IVof the Act or the regulations promulgated thereunder

. (b) "Potential emissions" fromorganic solvent cleaning operations at a stationary source are calculated as follows: (1) Determine the potential to emit for each individual solvent cleaning using the following equation
. PTEi=H ; W i SAI ; Where: PTE ;--the potential to emit for solvent cleaning machine i (kilograms of solvent per year)
. Hi=hours of operation for solvent cleaning machine i (hours per year) .=8760 hours per year, unless otherwise restricted by a Federally enforceable requirement

. W ;--the working mode uncontrolled emission rate (kilograms per square meter per hour) .=1 .95 kilograms per square meter per hour for batch vapor and cold cleaning machines.=1 .12 kilograms per square meter per hour for in-line cleaning machines
. SAI ;= solvent/air interface area ofsolvent cleaning machine i (square meters)
. Cleaning machines that do not have a solvent/air interface shall calculate a solvent/air interface area using the procedure in paragraph (2) of this section
.

Page 6of 11(2) Cleaning machines that do not have a solvent/air interface shall calculate a solvent/air interface area using the following equation
. SAI=2.2Q * (Vol)o_6 Where: SAI=thesolvent/air interface area (square meters)
. Vol-the cleaning capacity ofthe solvent cleaning machine (cubic meters)
. (3) Sum the PTEi for all solvent cleaning operations to obtain the total potential to emit for solvent cleaning operations at the facility
. "ReasonablyAvailable Control Technology" and "RACT" means the lowest emission limitation that a particular piece ofequipment or pollutant emitting activity is capable of meeting by using measures that are reasonably available in terms of technological and economic feasibility
. "Residual oil" means No
. 4, No
. 5, or No
. 6fuel oil
. "Stack" means a flue, conduit or opening to provide for the emission ofthe products of combustion and/or other air contaminants into the atmosphere. "Secondary emissions" means emissions which occur as a result of the construction or operation ofa major stationary source or major modification, but do not come fromthe major stationary source or major modification itself
. Secondary emissions must be specific, well defined, quantifiable and impact the same general areas as the stationary source or modification. Secondary emissions include emissions fromany off-site support facility which would not be constructed or increase its emissions except as a result ofthe construction or operation ofthe major stationary source or major modification
. Secondary emissions do not include emissions fromany mobile source regulated under Title 11 of the Clean Air Act
. "Vapor Cleaning" means an organic solvent cleaning process in which contaminants or water are cleaned and removed from surfaces by condensing hot solvent vapor on the colder pieces

. This definition includes vapor degreasing and drying
. "Volatile organic compound" and "VOC" means any organic compound which participates in atmospheric photochemical reactions
. This includes any organic compound other than the following compounds:

(a) acetone (b) CFC-11 (trichlorofluoromethane) (c) CFC-12 (dichlorodifluoromethane) (d) CFC-113 (1,1,2-trichloro 1,2,2-trifluoroethane) (e) CFC-114 (1,2-dichloro 1,1,2,2-tetrafluoroethane) (f) CFC-115 (chloropentafluoroethane)
Page 7 of I 1(g) 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCFZOCH3) (h) ethane (i) ) (k) (1) (m) (n) (o) (p) (q) (r) (s) (t) (u) (v) 

## (w) (x) (Y) (z) (aa) (bb) (cc) (dd) (ee) (ff) (gg) (hh) (ii) 

### GJ) (kk) (11) 2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCFzOC2H5) HCFC-22 (chlorodifluoromethane) HCFC-31 (chlorofluoromethane) HCFC-123 (1,l, l-trifluoro 2,2-dichloroethane) HCFC 123a (1,2-dichloro-1,1,2-trifluoroethane) HCFC-124 (2-chloro 1,1,1,2-tetrafluoroethane) HCFC-141b (1,1-dichloro 1-fluoroethane) HCFC-142b (1-chloro 1,1-difluoroethane) HCFC-151a (1-chloro-l-fluoroethane) HCFC-225ca (3,3-dichloro-1,1,1,2,2-pentafluoropropane) HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane HFC-23 (trifluoromethane) HFC-32 (difluoromethane) HFC-43-10mee (1,1,1,2,3,4,4,5,5,5-decafluoropentane) HFC-125 (pentafluoroethane) HFC-134 (1,1,2,2-tetrafluoroethane) HFC-134a (1,1,1,2-tetrafluoroethane) HFC-143a (1,1,1-trifluoroethane) HFC-152a (l,l-difluoroethane) HFC-161 (ethylfluoride) HFC-227ea (1,1,1,2,3,3,3-heptafluoropropane) HFC-236ea (1,1,1,2,3,3-hexafluoropropane) HFC-236fa (1,1,1,3,3,3-hexafluoropropane) HFC-245ca (1,1,2,2,3-pentafluoropropane) HFC-245ea (1,1,2,3,3-pentafluoropropane) HFC-245eb (1,1,1,2,3-pentafluoropropane) HFC-245fa (1,1,1,3,3-pentafluoropropane) HFC-365mfc (1,1,1,3,3-pentafluorobutane) HFE-7000 (1,1,1,2,2,3,3-heptafluoro-3-methoxypropane or n-C3F7OCH3) HFE-7100 (1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane or C4FsOCH ; ) (mm) HFE-7200 (1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane or C4F90CIH5) (nn) HFE-7300 (1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4- trifluoromethylpentane or L-14787 or CZFSCF(OCH3)CF(CF3)2) (oo) HFE-7500 (3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2- (trifluoromethyl) hexane) (pp) methane (qq) methyl acetate (rr) methyl chloroform(1,1,1-trichloroethane) (ss) methyl formate (HCOOCH3) (tt) methylene chloride (dichloromethane) (uu) parachlorobenzotrifluoride (PCBTF) (vv) perchloroethylene (tetrachloroethylene) (ww) cyclic, branched, or linear completely methylated siloxanes (xx) The perfluorocarbon compounds whichfall into these classes:
Page 8 of I 1(1) Cyclic, branched, or linear, completely fluorinated alkanes; (2) Cyclic, branched, or linear, completely fluorinated ethers with no unsaturations; (3) Cyclic, branched, or linear, completely fluorinated tertiary amines with no unsaturations; and (4) Sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine
. These compounds have been determined to have negligible photochemical reactivity
. For purposes ofdetermining compliance with emission limits, VOC will be measured by the approved test methods
. Wheresuch a method also inadvertently measures compounds with negligible photochemical reactivity, as defined above, an owner or operator may exclude these negligible photochemical reactive compounds when determining compliance with an emissions standard
. Exempt solvents will be treated as water in "pounds ofVOCper gallon ofcoating minus water" calculations
. Classification ofmethyiene chloride and perchloroethylene as exempt compounds does not relieve the facility ofthe requirements in Air Pollution Control Regulation No
. 22
. The compound t-butyl acetate is considered a VOCfor purposes ofall recordkeeping, emissions reporting, photochemical dispersion modeling and inventory requirements which apply to VOC and shall be uniquely identified in emission reports, but is not a VOC for purposes ofVOCemissions limitations or VOC content requirements.

Page 9of 11Abbreviations and Symbols - Units of Measure

Abbreviations and S

ymbols Definition Btu British thermal unit °C Deg ree Celsius (centi g

rade) cm Centimeter dscf D cubic feet at standard conditions dscm D cubic meter at standard conditions °F Deg ree Fahrenheit ft Feet Gram al Gallon r Grain hr Hour k Kilogram lb Pound lbs Pounds m Meter m Cubic meter m g Milli gram ( 10-3gram

) mm Millimeter 10' meter m Parts p er million si Pounds per square inch t Tons p er ear 49 Microgram(10' gram) vol Volume wt Wei ght % Percent

Page 10 of 11General Provisions Purpose The purpose ofthis regulation is to provide a consistent set ofdefinitions and abbreviations forterms used in morethan one ofthe Rhode Island Air Pollution Control Regulations
. Authority These regulations are authorized pursuant to Rhode Island General Laws § 42-17.1-2(s) and 23-23, as amended, and have been promulgated pursuant to the procedures set forth in the Rhode Island Administrative Procedures Act, Rhode Island General Laws Chapter 42-35
. Application The terms and provisions ofthis regulation shall be liberally construed to permit the Department to effectuate the purposes ofstate law, goals and policies
. Severability Ifany provision ofthis regulation or the application thereofto any person or circumstance, is held invalid by a court ofcompetentjurisdiction, the validity ofthe remainder ofthe regulation shall not be affected thereby
. Effective Date The foregoing regulation, "Rhode Island Air Pollution Control General Definitions Replation", after due notice, is hereby adopted and filed with the Secretary ofState this 19` day of September, 2008 to become effective twenty (20) days thereafter, in accordance with the provisions of Chapters 23-23, 42-35, 42-17.1, 42-17.6, of the General Laws of Rhode Island of 1956, as amended
. 

# ~~ li~J`~,~~ W

. Michael Sullivan, PhD ., Director Department of Environmental Management

Notice Given on: July 8, 2008 Public Hearing held: August 8, 2008 Filing Date: September 19, 2008 Effective Date: October 9, 2008 

# RECEIVED SEP 1 9 Mn? Rf SECaETA

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