STATE OF RHODE ISLANDANDPROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT



### OFFICE OF AIRRESOURCES 

### RHODE ISLANDAIR POLLUTION CONTROL GENERAL DEFINITIONS REGULATION

Effective: 19July 2007 LastAmended29September 2010

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 inthe R .I
. Administrative Procedures Act, R.I
. Gen
. Laws Chapter 42-35
.STATE OF RHODE ISLANDANDPROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT



### OFFICE OF AIRRESOURCES AIR POLLUTION CONTROL GENERAL DEFINITIONS REGULATION Applicability Unless otherwise expressly defined by an individual Air Pollution Control Regulation, the terms, definitions and unit ofmeasure abbreviations contained herein shall be generally applicable to all Rhode IslandAir Pollution Control Regulations adopted or amended at the same time as or after the adoption of these definitions
. 

### Definitions "Act" or "Clean Air Act" or "CAA" means the Federal Clean Air Act, as amended 42 U.S.C
. 7401, et seq. "Actual heat input" means the gross heat release potential based upon the actual BTUcontent of the fossil fuel being burned and the rate at which 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 levelwith little dilution and dispersion due toalteration ofbackgroundair flow characteristics caused by the presence of buildings or other obstacles inthe vicinity of the 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 withother 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 oflife and property. "Air pollution control system" means a system, device or equipment designed and installed primarily for the purpose ofreducing or eliminating the emission ofair contaminants to the atmosphere
. "Best available control technology" or " 'BACT" means anemissions limitation (including a visible emissions standard) based on the maximum degree ofreduction 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 ofproduction processes or available methods, systems and techniques, Page 1 of 11including fuel cleaning, cleanfuels, or treatment or innovative fuel combustion techniques for control of such pollutant
. In no event shall application of best available control technology result inemissions of any pollutant which would exceed the emissions allowed by any applicable state or federal air pollution control rule or regulation
. If the Director determines that technological or economic limitations on the application of measurement methodology to a particular emissions unit would make the imposition ofair emissions standards infeasible, a design, equipment, work practice, operational standard or combination thereof, may be prescribed instead to satisfy the requirement of best available control technology
. Such standard shall to the degree possible set forththe emission reduction achievable by implementation of such design, equipment, work practice or operationand shall provide for compliance by means whichachieve equivalent results
. "Biodiesel'° means a fuel for diesel engines derived fromnatural oils, such as soybean oils, and which meets the American Society for Testingand Materials specifications ofASTM D6751 and is registered with the US EPAas a fuel and a fuel additive under Section 211(b) ofthe Clean Air Act
. "CFR" means the Code ofFederal 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 classifiedas cold cleaning machines
. Wipe cleaning is not included in this definition
. "Department" means the Rhode Island Department of Environmental Management
. "Director" means the Director of the Rhode Island Department ofEnvironmental Management or any subordinate or subordinates to whom he or she has delegated the powers and duties vested in himor her by Title 23, Chapter 23, Section 5 of the 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 inASTM 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 minorsource permit issued pursuant tothe requirements ofAir Pollution Control Regulation No
. 9, an operating permit or emissions cap issued pursuant to the requirements ofAir Pollution Control Regulation No
. 29, anair 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 of the same person (or persons under common control)
. Pollutantemitting activities shall be considered as part of the same industrial grouping if they 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 mayconsist of one or more emissions units
. Afacility orstationary source does not include emissions resulting directly froman internal combustion engine for transportation purposes, emissions from a nonroad engine or the activities of any vessel
. "Federally Enforceable" means all limitations and conditionswhichare enforceable bythe Administrator ofthe U.S
. Environmental Protection Agency including, but not limited to, those requirements developed pursuant to 40CFRPart 60 (New Source Performance Standards), 40 CFR Part 61 (National Emission Standards for Hazardous Air Pollutants), 40CFRPart 63 (National Emission Standards for Hazardous Air Pollutants for Source Categories), requirements withinthe State Implementation Plan, those requirements in operating pen-nits issued pursuant to Air Pollution Control Regulation No
. 29or 40CFRPart 71 (except those listed as "Not Federally Enforceable"), those requirements in major or minorsource pen-nits issued pursuant to Air Pollution Control Regulation No
. 9, to the extent the regulation is a part of the State Implementation Plan and those requirements in emissions caps issued pursuant to Air Pollution Control Regulation No
. 29
. "Fossil fuel" means natural gas, petroleum, coal and any formofsolid, liquid or gaseous fuel derived fromsuch materials for the purpose of creating useful heat. "Fossil fuel fired steamor hot water generating unit" means a furnace or boiler used inthe process ofburning fossil fuel for the purpose ofproducing steamor hotwater by heat transfer
. "Fuel oil" means any virgin 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 immediatevicinity ofthe source as a result ofaerodynamic 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-I1 (trichlorofluoromethane) (b) CFC-12 (dichlorodifluoromethane) (c) CFC-113 (1,1,1-trichloro 2,2,2-trifluoroethane) (d) CFC-114 (1,2-dichloro 1,1,2,2-tetrafluoroethane) Page 3 of 11(e) (t) (g) (i) (?) (k) (1) (m) (n) (o) (P) (q) (r) CFC-115 (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 Clean AirAct 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 of emissions based onthe 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 ofthe 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 of this 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 beneaththe 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 molecularweight ofNO2
.

Page 4of 11"Nonroad engine" means:

(a) Except as discussed in paragraph (b) ofthis definition, a nonroad engine is any internal combustion engine: (1)

) In or on a piece of equipment 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 of equipment that is intended to be propelled while performing its function (such as lawnmowers and string trimmers) ; or (3) That, by itself or in or ona piece of equipment, is portable or transportable, meaning designed to be and capable of being carried or movedfromone location to another
. Indicia oftransportability include, but are not limited to, wheels, skids, carrying handles, dolly, trailer, or platform
. 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 bya federal New Source Performance Standard promulgated under section 111 ofthe Act; or 

### (3) the engine otherwise included in paragraph (a) (3) ofthis definition remains or will remain at a location for more than 12 consecutive months or a shorter period oftime 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 toperformthe same or similar function as the engine replaced will be included incalculating 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. Aseasonal 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 compound" means any carbon-containing compound with the exception of carbon monoxide, carbon dioxide, carbonic acid, metallic carbides, metallic carbonates and ammonium

carbonate
. "Organic Solvent Cleaning" means the process of cleaning contaminants or water fromsurfaces by cold cleaning or vapor cleaning usingVolatile Organic Compounds (VOC) or volatile Hazardous Air Pollutants
.

Page 5of I 1"Owner or operator" means any person who owns, leases, operates, controls or supervises any building, structure, facility, installation or emissions unit which directly or indirectly results or may result in emission ofany air contaminant
. "Particulate matter" means any material, other than uncombined water, that is or has been airborne and exists as a liquid orsolid at ambient conditions
. "Permanent total enclosure" means a permanently installed enclosure that completely surrounds a source of emissions such that all VOCemissions are captured and contained for discharge to a control device and which meets the specifications given in Method 204 or 40 CFR Part 51, Appendix M
. "Person" means an individual, trust, firm, joint stock company, corporation (includinga 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 of any interstate body
. "Potential to emit" or "potential emissions" means: (a) The maximum

capacity of a stationary source to emit a pollutant under its physical or operational design
. Any physical or operational limitation on the capacity of a source to emit a pollutant, including air pollution control equipment and restrictions onthe hours of operation or on the type or amount of material combusted, stored or processed, shall be treated as part ofits 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 of a stationary source. This termdoes not alter or affect the use of this termfor any other purposes under the Act, or the term"capacity factor" as used in Title IV of the Act or the regulations promulgated thereunder
. ) "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
. PTE;HixW1xSAI ; 

### Where: PTEi=the potential to emit for solvent cleaning machine i (kilograms ofsolvent per year)
. Hi=hours of operation for solvent cleaning machine i (hours per year) .=8760 hours per year, unless otherwise restricted bya Federally enforceable requirement
.

Page 6of 11Wi=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
. SAIi= 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
. (2) Cleaning machines that do not have asolvent/air interface shall calculate asolvent/air interface area using the following equation
. 

## SAI=2.za * (Vol)0.6 Where: SAI=the solvent/air interface area (square meters)
. Vol=the cleaning capacity of the solvent cleaning machine (cubic meters)
. (3) Sum the PTE;for all solvent cleaning operations to obtain the total potential to emit for solvent cleaning operations at the facility
. "Reasonably Available Control Technology" and "RACT" means the lowest emission limitation that a particular piece of equipment or pollutant emitting activity is capable of meeting by using measures that are reasonably available in terms oftechnological 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 of the products of combustion and/or other air contaminants into the atmosphere
. "Secondary emissions" means emissions which occur as a result ofthe construction or operationof a 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 facilitywhich would not be constructed or increase its emissions except as a result ofthe construction or operation of the major stationary source or major modification. Secondary emissions do not include emissions fromany mobile source regulated under Title II of the CleanAirAct
. "Vapor Cleaning" means an organic solvent cleaning process in which contaminants or water are cleaned and removed fromsurfaces by condensing hot solvent vapor on the colder pieces
. This definition includesvapor degreasing and drying
.

Page 7of 11"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-I1 (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) 

### (g) 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)ZCFCFZOCH3) (h) dimethyl carbonate (i) ethane 

### (j) 2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)ZCFCFZOC2H5) (k) HCFC-22 (chlorodifluoromethane) (I) HCFC-31 (chlorofluoromethane) (m) HCFC-123 (1,1,1-trifluoro 2,2-dichloroethane) (n) HCFC 123a (1,2-dichloro-1,1,2-trifluoroethane) (o) HCFC-124 (2-chloro 1,1,1,2-tetrafluoroethane) (p) HCFC-141b (1,1-dichloro 1-fluoroethane) (q) HCFC-142b (1-chloro 1,1-difluoroethane) (r) HCFC-151a (1-chloro-l-fluoroethane) (s) HCFC-225ca(3,3-dichloro-1,1,1,2,2-pentafluoropropane) (t) HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane (u) HFC-23 (trifluoromethane) 

### (v) HFC-32 (difluoromethane) (w) HFC-43-lOmee (1,1,1,2,3,4,4,5,5,5-decafluoropentane) (x) HFC-125 (pentafluoroethane) (y) HFC-134 (1,1,2,2-tetrafluoroethane) (z) HFC-134a (1,1,1,2-tetrafluoroethane) (aa) HFC-143a (1,1,1-trifluoroethane) (bb) HFC-152a (1,1-difluoroethane) 

### (cc) HFC-161 (ethylfluoride) (dd) HFC-227ea (1,1,1,2,3,3,3-heptafluoropropane) (ee) HFC-236ea (1,1,1,2,3,3-hexafluoropropane) (ff) HFC-236fa (1,1,1,3,3,3-hexafluoropropane) (gg) HFC-245ca (1,1,2,2,3-pentafluoropropane) (hh) HFC-245ea (1,1,2,3,3-pentafluoropropane) (ii) HFC-245eb (1,1,1,2,3-pentafluoropropane) (jj) HFC-245fa (1,1,1,3,3-pentafluoropropane) (kk) HFC-365mfc (1,1,1,3,3-pentafluorobutane) (11) HFE-7000 (1,i,1,2,2,3,3-heptafluoro-3-methoxypropane or n-C3F7OCH3) (mm) HFE-7100 (1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane Or C4F90CH3) (nn) HFE-7200 (1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane or C4Fy0C2H5) (oo) 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 ) Page 8of 11(pp) HFE-7500 (3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2- (trifluoromethyl) hexane) (qq) methane (rr) methyl acetate (ss) methyl chloroform(1,1,1-trachloroethane) (tt) methyl formate (HCOOCH3) (uu) methylene chloride (dichloromethane) (vv) parachlorobenzotrifluoride (PCBTF) (ww) perchloroethylene (tetrachloroethylene) (xx) propylene carbonate (yy) cyclic, branched, or linear completely methylated siloxanes (zz) The perfluorocarbon compounds which fall into these classes: 

### (1) Cyclic,branched, or linear, completely fluorinated alkanes; (2) Cyclic, branched, or linear, completely fluorinated ethers with no unsaturations; (3) Cyclic, branched, or linear, completelyfluorinated 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 of determining compliance with emission limits, VOC will be measured by the approved test methods
. Where such a method also inadvertently measures compounds with negligible photochemical reactivity, as defined above, an owner or operator may exclude these negligible photochemical reactive compoundswhen determining compliance with an emissions standard. Exempt solvents will be treated as water in "pounds ofVOCper gallon of coating minus water" calculations
. Classification of methylene chloride and perchloroethylene as exempt compounds does not relieve the facility ofthe requirements inAir Pollution Control Regulation No
. 22
. The compound t-butyl acetate is considered a VOC for purposes ofall recordkeeping, emissions reporting, photochemical dispersion modeling and inventory requirements which apply to VOCand shall be uniquely identified in emission reports, but is not a VOC for purposes ofVOC emissions limitations or VOCcontent requirements
.

Page 9of 11Abbreviations and Symbols - Units of Measure

Abbreviations and Sym bols Definition 

### Btu British thermal unit °C Degree Celsius (centi grade ) cm Centimeter dscf D cubic feet atstandard conditions dscm D cubic meter at standardconditions °F Degree Fahrenheit ft Feet Gram al Gallon 

### r Grain hr Hour k Kilo gram lb Pound lbs Pounds m Meter rn Cubic meter 

### m g Milli gram( 10" gram ) mm Millimeter 10" meter m Parts per million 

### si Pounds er square inch tpy Tons p er ear Microgram(10"° gram) vol Volume 

### wt Wei g ht ~ % Percent

Page 10 of I1General Provisions Purpose The purpose of this regulation is to provide a consistent set ofdefinitions and abbreviations for terms used in more than one of the Rhode IslandAir 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 inthe Rhode Island Administrative Procedures Act, Rhode Island General Laws Chapter 42-35
. Application The terms and provisions of this regulation shall be liberally construed topermit the Department to effectuatethe purposes ofstate law, goals and policies
. 

### Severability If any provision of this regulation or the application thereofto any person or circumstance, is held invalid by a court of competentjurisdiction, the validity of the remainder ofthe regulation shall not be affected thereby
. Effective Date The foregoing regulation, "Rhode Island Air Pollution Control General Definitions Regulation", as amended, after due notice, is hereby adopted and filed with the Secretary of State this 9`h day of September, 2010to become effective twenty (20) days thereafter, in accordance withthe provisions of Chapters 23-23, 42-35, 42-17.1, 42-17.6, ofthe General Laws of Rhode Island of 1956, as amended
. 

### A 

# oO W
. Michael Sullivan, PhD ., Director Department of Environmental Management Notice Given on: July 21, 2010 Public Comment Period Ended: August 23, 2010 Filing Date: September 9, 2010 Effective Date: September 29, 2010

Page 11 of 11