MichaelA.Nash3MLegalAffairsP.O.Box33428AssociateGeneralCounsel,OfficeofGeneralCounselSt.Paul,MN55133-3428USAU.S.BusinessOperationsPhone:(651)733.-0134Fax:(651)732-7002Email:manash@mmm.com3MJanuary28,20IITheHonorableLisaP.Jackson,AdministratorU.S.EnvironmentalProtectionAgencyArielRiosBuilding1200PennsylvaniaAvenue,WMailCode:1l0lAWashington,D.C.20460Re:RequestforAdministrativeReconsiderationofSubpal1IoftheMandatoryReportingofOreenhouseGasesRule:AdditionalSourcesofFluorinatedOHOsDearAdministratorJackson:3MCompany("3M'')herebyrequests thattheU.S.EnvironmentalProtectionAgency("EPA"orthe"Agency")reconsiderthereportingrequirementsforfluorinatedgreenhousegases("OHO")usedasheattransferfluidsunderSubpartIoftheMandatoryReportingofGreenhouseGases;AdditionalSourcesofFluorinatedGHGs;FinalRule,publishedat75Fed.Reg.74774(Dec.I.2010).Pursuantto§307(d)(7)(B)oftheCleanAirAct("CAA"),42U.s.c.§7607(d)(7)(B),whereitisimpracticabletoraiseanobjectionduringtheperiodofpubliccommentorifthegroundsforsuchanobjectionariseafterthepubliccommentperiod(butwithinthetimespecifiedforjudicialreview),andifsuchobjectionsareofcentralrelevancetotheoutcomeoftherule,EPAisauthorized10reconsiderarule.3Misaglobal,diversifiedmanufacturingcompanyheadquarteredinSt.Paul,Minnesota,manufacturingover55,000differentproductswithoperationsinmorethan60countries.Thoseproduclsarcmanufacturedbymorethan35businessunits,organizedin10sixmajormarketsConsumcrandOffice;DisplayandGraphics;ElectroandCommunications;HealthCare;IndustrialandTransportation;andSafetySecurityandProtectionServices.Wehave4Stechnologyplatformsincludingadhesives,abrasives.lightmanagcment,microreplication,nonwovenmaterials,andsurfacemodification.3MisrequestingreconsiderationofthereportingrcquirementsforfluorinatedGHGsusedasheattransferfluidsunderSubpartI.Asdiscusscdmorefullybelow,ascurrentlywTittenthereportingrequirementsforheattransferfluidswillexcludeasignificantportionoffluorinatedGI-IGsusedasheattransferfluids.Thus,theGHOemissionsassociatedwithheattransferfluidswillnotbeaccuratelyreportedundertherule.Thisisanoutcomethatcouldnotreasonablybeanticipatcdatthetimetherulewasproposedandclearlyisofcentralrelevancetotherule.TheHonorableLisaP.Jackson,AdministratorJanuary28,2011Page2UnderSubpartI,§98.92requiresthereportingof"tluorinatedOHGs(asdefinedin§98.6)andN20.,,175Fed.Reg.at74819.Thisincludes"[f]luorinatedGHGsemittedfromheattransferfluiduse."Id.BytyingthereponingrequirementsforheattransferfluidstothedefinitionofafluorinatedGHGunder§98.6inSubpartA,thescopeofSubpartI'sreportingrequirementsarelimitedtothoseheattransferfluidsthathavevaporpressuresof>1mmHgat25degreesC.Although3MunderstandsthereasonsbehindthevaporpressurethresholdinthegeneraldefinitionofafluorinatedGHG,thissamerationaleshouldnotapplytoheattransferfluids.Heattransferfluidsareusedatelevatedtemperaturesandpressures,andasaresultthevaporpressureofthesematerialsatImmHgabsoluteat25degreesCisnotpredictiveofemissions.Heattransferfluidsareusedthroughabroadrangeofboilingpointsandareroutinelylostfromsystemsprimarilythroughmechanicalleaksbutalsofromevaporativeloss.Onceemittedfromasystem,thefateofheattransferfluidsisprimarilytheatmosphere.Asitiscurrentlywritten,SubpartIwillhaveseveralconsequencesthatareofcentralrelevancetotheoutcomeoftherule.First,therulewillresultindramaticunderreportingofheattransfertluiduseandemissions.Ofpanicularconcernisthat,althoughalltheheattransferfluidsthathaverelativelylowglobalwarmingpotentialswillberequiredtobereportedasGHGs,asubstantialpercentageofheattransferfluidsthathaveglobalwarmingpotentialsintherangeof10,000timesthatofCO2willbeexemptfromreportingrequirements.Therefore,therulewilllikelyleadtoamigrationtowarduseofexemptcompoundsandanincreaseinGHGemissionsfromthesector.3MbelievesthatthisproblemcanbecorrectedbygrantingthisrequestforreconsiderationandamendingSubpartItospecifythat,forreportingrequirementsunderSubpartI,thevaporpressurecutolfinthegeneraldefinitionoffluorinatedGHGdoesnotapplytoheattransferfluidscoveredbythisSubpart.Thankyouforyourconsiderationoftheseconcerns.Pleasedonothesitatetocontactmeifyouhaveanyquestions.Sincerely,MichaelA.NashIInSubpartA(§98.6),afluorinatedGHGisdefinedas"sulfurhexafluoride(SF6),nitrogentrifluoride(NF,),andanynuorocarbonexceptforcontrolledsubstancesasdefinedat40eFRpart82,subpartAandsubstanceswilhvaporpressuresoflessthan1mmofHgabsoluteal25degreesC....."74Fed.Reg.56374,56387(Oct.30,2009).