STATE OF RHODE ISLANDANDPROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

OFFICE OF AIRRESOURCES 

### RHODE ISLANDAIRPOLLUTION CONTROL GENERAL DEFINITIONS REGULATION

Effective: 19July 2007 FinalMark-up October 2008Amendments

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
.STATE OF RHODE ISLANDANDPROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

OFFICE OF AIRRESOURCES AIRPOLLUTION CONTROL GENERAL DEFINITIONS REGULATION Applicability Unless otherwise expressly defined by an individual Air Pollution Control Regulation, the terms, 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 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 ofthe fossil fuel beingburned and the rate at which it is burned
. "Administrator" means the Administrator ofthe United States Environmental Protection Agency or the Administrator's duly authorized representative
. "Aerodynamic downwash" means the rapid descent ofaplume to ground level with little dilution and dispersion due to alteration ofbackground air flow characteristics caused by the presence of buildings or other obstacles in the vicinity 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 ofthese
. "Air pollution" means the presence in the outdoor atmosphere ofone 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 ofreducing 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 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 10including fuel cleaning, clean fuels, or treatment or innovative fuel combustion techniques for

control ofsuch pollutant
. In no event shall application of best available control technology result in emissions ofany pollutant whichwould 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 ofmeasurement 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 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 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 of Federal Regulations
. "Cold Cleaning" means an organic solvent cleaning process which cleans and removes contaminants or water fromsurfaces by spra iy~ng, brushing, flushing, immersing, or drying parts. Cleaning machines that use heated, nonboiling solvent to clean theparts 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 him

or herby Title 23, Chapter 23, Section 5ofthe General Laws ofRhode 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 of a stationary source which emits orwould 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 ofAirPollution Control Regulation No
. 29, an airtoxics operating permit issued pursuant to the requirements ofAir PollutionControl Regulation No
. 22, a consent agreement or an approval issued pursuant to the requirements ofAirPollution Control Regulation Nos
. 15, 19, 21, 26, 27, 30 or 35
. Page 2of 10"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 (orpersons under common control)
. Pollutantemitting activities shall be considered as part ofthe 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
. Afacility or stationary source may consist ofone 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 ofanyvessel
. "Federally Enforceable" means all limitations and conditions which are enforceable bythe Administratorofthe U

.S
. Environmental Protection Agency including, but not limitedto, those requirements developed pursuant to 40CFRPart 60 (New Source Performance Standards), 40 CFRPart 61 (National Emission Standards for Hazardous AirPollutants), 40CFRPart 63 (National Emission Standards for Hazardous AirPollutants for Source Categories), requirements within the State Implementation Plan, thoserequirements in operating permits issued pursuant to Air Pollution Control Regulation No
. 29or 40 CFRPart 71 (except those listed as "Not Federally Enforceable"), those requirements in major or minor source permits 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 from

such materials for the purpose ofcreating useful heat
. "Fossil fuel fired steamor hot water generating unit" means a furnace or boiler used in the process ofburning fossil fuel for the purpose of producing steam or hot water by heat transfer
. "Fuel oil" means anyvirgin distillate oil, virgin residual oil , biodiesel or a blend of these
. "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 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-11 (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 10(e) (g) (h) (i) ) (k) (1) (m) (n) (o) ) (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 Air 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 ofany 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 aproposed new or modified stationary source to emit anypollutant in excess ofthe 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 (NOD and any other species of nitrogen oxides, expressed as the molecular weight ofNO2
. "Nonroad engine" means: (a) Except as discussed in paragraph (b) ofthis definition, a nonroad engine is any internal
Page 4 of 10combustion 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 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 on a piece ofequipment, is portable or transportable, meaning designed to be and capable of being 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 anonroad engine if: (1) the engine is used to propel a motor vehicle 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 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. Alocation 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 perform the 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 ofthe seasonal source. Aseasonal source is a stationary source that remains in a single location on apermanent 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 bv cold cleaning or vapor cleaning using Volatile Organic Compounds (VOC) or volatile Hazardous ^ Air Pollutants
. "Owner or operator" means anyperson 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 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 10discharge to a control device and which meets the specifications given in Method 204 or 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 tThe maximum

capacity ofa stationary source to emit a pollutant under its physical or operational design
. Anyphysical 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 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 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 IV of 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
. PTE-=H ; xW ;XSAI ; Where: PTE ; =the potential to emit for solvent cleaning machine i (kilograms of solvent per year)
. _H;=hours ofoperation for solvent cleaning machine i (hours per year) .=8760 hours -per year, unless otherwise restricted by a Federally enf

orceable requirement. _W ; =the working mode uncontrolled emission rate (kilograms per square meterper hour) .=1 .95 kilograms per square meter per hour for batchvapor 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 para -g~raph (2) ofthis section
.

Page 6of 10(2) Cleaning machines that do not have a solvent/air interface shall _calculate a solvent/air interface area using the following equation
. SAI=2.20 * (Vol) o.6 Where: SAI=the solvent/air interface area (square meters) Vol=the cleaning capacity ofthe solvent cleaning machine (cubic meters)
. (3) Sum the PTEifor 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 ofequipment or pollutant emitting activity is capable of meeting byusing measures that are reasonably available in terms of technological and economic feasibility

. "Residual oil" means No
. 4, No
. 5, or No
. 6 fuel 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 ofthe construction or operation ofa major stationary source or major modification, but do not come fromthe major stationary source or majormodification 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 II ofthe Clean Air Act
.

" 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 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) (fl CFC-115 (chloropentafluoroethane)
Page 7 of 10(g) 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)ZCFCFZOCH3) (h) ethane (i) 2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)ZCFCFZOCZH5) (j) HCFC-22 (chlorodifluoromethane) (k) HCFC-31 (chlorofluoromethane) (1) HCFC-123 (1,1,1-trifluoro 2,2-dichloroethane) (m) HCFC 123a (1,2-dichloro-1,1,2-trifluoroethane) (n) HCFC-124 (2-chloro 1,1,1,2-tetrafluoroethane) (o) HCFC-141b (1,1-dichloro 1-fluoroethane) (p) HCFC-142b (1-chloro 1,1-difluoroethane) (q) HCFC-151a (1-chloro-l-fluoroethane) (r) HCFC-225ca (3,3-dichloro-1,1,1,2,2-pentafluoropropane) (s) HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane (t) HFC-23 (trifluoromethane) (u) HFC-32 (difluoromethane) (v) HFC-43-10mee (1,1,1,2,3,4,4,5,5,5-decafluoropentane) (w) HFC-125 (pentafluoroethane) (x) HFC-134(1,1,2,2-tetrafluoroethane) (y) HFC-134a (1,1,1,2-tetrafluoroethane) (z) HFC-143a (1,1,1-trifluoroethane) (aa) HFC-152a (l,l-difluoroethane) (bb) HFC-161 (ethylfluoride) (cc) HFC-227ea (1,1,1,2,3,3,3-heptafluoropropane) (dd) HFC-236ea (1,1,1,2,3,3-hexafluoropropane) (ee) HFC-236fa (1,1,1,3,3,3-hexafluoropropane) (ff) HFC-245ca (1,1,2,2,3-pentafluoropropane) (gg) HFC-245ea (1,1,2,3,3-pentafluoropropane) (hh) HFC-245

eb (1,1,1,2,3-pentafluoropropane) (ii) HFC-245fa (1,1,1,3,3-pentafluoropropane) (jj) HFC-365mfc (1,1,1,3,3-pentafluorobutane) (kk) HFE-7000 (1,1,1,2,2,3,3-heptafluoro-3-methoxypropane or n-C3F7OCH3) (11) HFE-7100 (1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane or C4F90CH3 ) (mm) HFE-7200 (1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane or C4F90CzH5) (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)Z ) (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 which fall into these classes:
Page 8of 10(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 andwith 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
. 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 compounds when determining compliance with an emissions standard
. Exempt solvents will be treated as water in "pounds ofVOCper gallon ofcoating minus water" calculations
. Classification ofmethylene 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 VOCforpurposes of all recordkeeping, emissions reporting, photochemical dispersion modeling and inventory requirements which apply to VOCand shall be uniquely identified in emission reports, but is not a VOCforpurposes ofVOCemissions limitations or VOCcontent requirements
.

Page 9of 10Abbreviations and Symbols - Units of Measure

Abbreviations and S

ymbols Definition Btu British thermal unit °C Degree Celsius (centigrade) cm Centimeter dscf Dry cubic feet at standard conditions dscm Dry cubic meter at standard conditions °F Degree Fahrenheit $ Feet g Gram gal Gallon gr Grain Hour kg Kilogram lb Pound lbs Pounds m Meter m Cubic meter mg Milligram(10- gram) Millimeter (10- meter) ppm Parts per million psi Pounds per square inch tpy Tons per year Microgram

(10- gram) vol Volume Wt Weight % ~ Percent I

Page 10 of 10General Provisions

Purpose The purpose ofthis regulation is to provide a consistent set ofdefinitions and abbreviations for terms used in more than 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 If any 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 Regulation", after due notice, is hereby adopted and filed with the Secretary ofState this 29th day of June , 2007 to become effective twenty (20) days thereafter, in accordance with the provisions of Chapters 23-23, 42-35, 42-17.1, 42-17.6, ofthe General Laws of Rhode Island of 1956, as amended
.
W
. Michael Sullivan, PhD ., Director Department of Environmental Management

Notice Given on: February 21, 2007 Public Hearing held: March 23, 2007 Filing Date: June 29, 2007 Effective Date: July 19, 2007

Page 11 of 10