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CC______TECHNICALSUPPORTDOCUMENTAmendmentstoCOMAR26.11.19.06DepartmentoftheEnvironmentLargeApplianceCoatingPurposeofAmendmentsTheseamendmentsadopttherequirementsoftheEPA’sControlTechniquesGuidelines(CTG)forlargeappliancecoating.EPAdevelopsCTGsasguidanceoncontrolrequirementsforsourcecategories.StatescanfollowtheCTGsoradoptmorerestrictivestandards.MDEproposestoadoptanewstandardforlargeappliancecoating.Applicationmethodandworkpracticerequirementswillalsobeadopted.Theseamendmentsaffectcoatersoflargeappliances.BackgroundEPApublishedaCTGforlargeappliancecoating,entitled“ControlofVolatileOrganicEmissionsfromExistingStationarySources,VolumeV:SurfaceCoatingofLargeAppliances,”EPA-450/2-77-034(1977CTG).InOctober1982,EPApromulgatedtheNationalStandardsofPerfonrianceforNewStationarySources(NSPS):StandardsofPerformanceforIndustrialSurfaceCoating:LargeAppliances,40CFRpart60,subpartSS(1982NSPS).In2002,EPApromulgatedtheNationalEmissionStandardsforHazardousAirPollutants:SurfaceCoatingofLargeAppliances,40CFRpart63,subpartNNNN(2002NESHAP).The1977CTGrecommendsandthe1982NSPSrequiresVOCemissionslimitsbasedonVOCcontentoflowVOCcoatingmaterials.The2002NESHAPestablishesorganichazardousairpollutants(HAP)emissionslimitsbasedontheorganicHAPcontentofloworganicHAPcoatingmaterials.Largeappliancecoatingsinclude,butarenotlimitedto,materialsreferredtoaspaint,topcoats,basecoats,primers,enamels,andadhesivesusedinthemanufactureoflargeappliancepartsorproducts.Alargeappliancepartisdefinedasanyorganicsurface-coatedmetallid,door,casing,panel,orotherinteriororexteriormetalpartoraccessorythatisassembledtoformalargeapplianceproduct.Alargeapplianceproductisalsodefinedasanyorganicsurface-coatedmetalrange,oven,microwaveoven,refrigerator,freezer,washer,dryer,dishwasher,waterheater,ortrashcompactormanufacturedforhousehold,commercial,orrecreationaluse.Severaldifferenttypesofapplicationtechnologiesareusedtoapplyliquidcoatings,andtheselectionoftheapplicationtechnologycanhaveasignificanteffectontheamountofcoatingusedandtheresultingVOCemissionsfromtheoperation.TheCTGrequiresthatcoatingscanonlybeappliedbycoatingapplicatorssuchas:airatomizedspraycoating,electrostaticspraycoating,highvolume/lowpressure(HVLP)spraycoating,dipcoating,flowcoating,rollcoating,electrocoating,andautophoreticcoating.Powdercoatingscanbeappliedthroughelectrostaticsprayingordipping.Cleaningactivitiesotherthansurfacepreparationalsooccuratlargeappliancecoatingfacilities.Cleaningmaterialsareusedduringtheseactivitiestoremovecoatingresidueorotherunwanted1Cmaterialsfromequipmentrelatedtocoatingoperations,aswellasthecleaningofsprayguns,transferlines(e.g.,tubingorpiping),tanks,andtheinteriorofspraybooths.ThesecleaningmaterialsaretypicallymixturesofVOCcontainingsolvents.EmissioncontrolrequirementsforcleaningmaterialsareintheCTG.AffectedSourcesTheamendmentsaffectsourcesthatcoatdoors,cases,lids,panels,andinteriorsupportparts,orotherinteriororexteriorpartoraccessoryofresidentialandcommercialwashers,dryers,ranges,refrigerators,freezers,waterheaters,dishwashers,trashcompactors,airconditioners,ovens,microwaveovensandothersimilarproducts.RegulationAmendmentCOMAR26.11.19.06isamendedtosettheVOCcoatingstandardof2.3poundspergallonofcoatingapplied(minuswater)/0.275kilogramlliterofcoatingapplied(minuswater).Applicationofcoatingsonlargeappliancescanbeconductedusingoneofthefollowingmethods:1.Electrostaticapplication;2.HVLPspray;3.Flowcoat;4.Rollercoat;5.Dipcoatincludingelectrodeposition;6.Brushcoat;or7.OthercoatingapplicationmethodcapableofachievingatransferefficiencyequivalentorbetterthanthatachievedbyHVLPspraying.TherequirementsoftheregulationcanbemetbycomplyingwiththestandardforVOCcontentofcoatingorachievinganoverallcaptureandcontrolofVOCemissionsfromthelargeappliancecoatinginstallationattheaffectedpremisesby90%.TheworkpracticestandardsapplytotheusageofallVOCcontainingmaterials.ControlTechnologyandStandardsTheCTGrecommendsthreeoptionsforcontrolofVOCemissions:(1)Emissionlimitsbasedontheuseoflow-VOCcoatings;(2)Equivalentemissionlimitsthatcanbeachievedthroughtheuseoflow-VOCcoatingsoracombinationofcoatingsandadd-oncontrols;and(3)Overallcontrolefficiencyof90percentforadd-oncontrols.Thelow-VOCcoatingsstandardsconsistofemissionlimitsintermsofmassofVOCpervolumeofcoatingandtheuseofspecifiedapplicationmethods.Forcleaningmaterials,theCTGestablishesworkpracticestandardstoreduceVOCemissions.DuetolackofinformationavailableregardingcurrentVOCcontent,thereisnospecificlimitforcleaningmaterialsusedinlargeappliancesurfacecoatingoperations.ExpectedEmissionsReductionsEPA’sCTGforlargeappliancecoatingoperationswillresultinminimalVOCemissionreductionsinMaryland.However,emissionsofVOCsfromlargeappliancecoating28/2/2010flC:operationsareexpectedtobereducedby18percentnationally.ThemaximumbenefitwillbeprovidedduringtheozoneseasonwhenVOCsreadilycombinewithNOxtoformthepollutantgroundlevelozone.HealthEffectsandGround-LevelOzoneThemaximumbenefitfromtheseamendmentswillbeprovidedduringtheozoneseasonwhenVOCsreadilycombinewithNOxtoformthepollutantgroundlevelozone.EconomicImpactTheeconomicimpactoftheseamendmentshasbeenestimatedbyEPAonanationallevel.Costeffectivenessisapproximately$500/tonofVOCcontrolled.RevisiontoMaryland’sSIPThisactionwillbesubmittedtotheU.S.EPAforapprovalasarevisiontoMaryland’sStateImplementationPlan.OtherStateorFederalRequirementsTherearenootherstateorfederalreasonablyavailablecontroltechnologystandardsforthiscategory.MultiplefacilitiesarecoveredunderthisCTGandeachmaybesubjecttoadditionalfederalrequirements.ComparisontoFederalStandardsThereisacorrespondingfederalstandardtothisproposedaction,buttheproposedactionisnotmorerestrictiveorstringent.ReferencesControlTechniquesGuidelines:LargeApplianceCoatingsEPA453/R-07-004September200738/2/2010C]CI..,pC:L