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ìàBACKGROUND€INFORMATION€FORˆÌà@ ìàPROMULGATED€STANDARDSˆÌÌÌÔ‡*XlÿXXLXlÿÔò òDisclaimeró ó:€òòThis€report€is€issued€by€the€Office€of€Air€QualityÐ ð @ ÐPlanning€and€Standards,€U.S.€Environmental€Protection€Agency.€ÏMention€of€trade€names€or€commercial€products€is€not€intended€toÏconstitute€or€endorsement€or€recommendation€for€use.€€Copies€ofÏthis€report€are€available€free€of€charge€as€supplies€permit€fromÏthe€Library€Services€Office€(MD„35),€U.S.€EnvironmentalÏProtection€Agency,€Research€Triangle€Park,€NC€27711,€(919)€541„¼2777,€from€the€National€Technical€Information€Service,€5285€PortÏRoyal€road,€Springfield,€Virginia€22161,€(703)€487„4650,€or€fromÏthe€Ô_ÔinternetÔ_Ô€(http://www.epa.gov/ttn/).óóÔ#†LXlÿXX*Xlÿs#ÔÐ  `° Ðà@¨ ¨ ìàà@@¨ ¨ ìàEnvironmental€Protection€AgencyˆÌÌÌà@ ìàCONSOLIDATED€FEDERAL€AIR€RULEˆÌà@ä ä ìàFOR€SYNTHETIC€ORGANIC€CHEMICALˆÌà@ÄÄìàMANUFACTURING€INDUSTRYˆÌÌÌà@Ô Ô ìàÔ‡*XlÿXXLXlÿÔBACKGROUND€INFORMATION€FORˆÐ ð @ Ðà@ ìàPROMULGATED€STANDARDSÔ#†LXlÿXX*XlÿS #ԈР¸   ÐÌÌÌPrepared€by:ÌÌÌòò€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€óóà0 p àà0Èp(#p(#àòò€€€€€€€€€€€€€€€€€€€óóÐ0€ È(#È(# ÐRick€Colyerà ¸ àà  àà h àà À àà  àà p àà È àà  àà x àDateÐ øH  ÐU.S.€Environmental€Protection€AgencyÌResearch€Triangle€Park,€N.C.€€27711ÌÌÌà  à1.€€The€promulgated€consolidated€Federal€air€rule€provides€aÏcompliance€option€to€several€standards€previously€promulgatedÏunder€Sections€111€and€112€of€the€Clean€Air€Act.€€It€acts€toÏconsolidate€similar€rules€that€apply€to€the€same€types€ofÏemission€points€at€an€industrial€site,€thereby€eliminatingÏdifferences€among€these€rules€and€reducing€burden.€€One€ofÏPresident€Clintonððs€and€Vice€President€Goreððs€reinventingÏenvironmental€regulation€initiatives€directs€EPA€to€consolidateÏFederal€air€rules,€so€that€Federal€air€rules€for€a€singleÏindustry€would€be€incorporated€into€a€single€rule.€€This€ruleÏwould€consist€of€ð ð...one€set€of€emission€limitations,€monitoring,Ïand€recordkeeping€and€reporting€requirements.ððÌÌà  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(#àCAR€OBJECTIVES€AND€BURDEN€REDUCTIONà‚#À!À!H(#.ÈÈ7` (#` (##à2„2݃9!ù # ÝŒˆÐ ð @ ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ù!Ýà0  àà0` (#(#àà  àÝ  Ý2.2à ` àSCOPE€à‚#À!À!H(#.0 0 ` (#` (##à2„7݃9!ù!"!ÝŒˆÐ ¸   ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚á!Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.2.1€Incorporating€or€Allowing€Other€Rules€Ýƒ:›‚á!ü!݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚Á"Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ýà0¸ ¸ (#¸ (#à€in€the€CARà‚#À!À!H(#.àà$¸ (#¸ (##à2„7à‚#@(#(#K(#. ¸ (#¸ (##à݃:›‚Á"Ü"ÝŒˆÐ H ˜  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚Ü#Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.2.2€Miscellaneous€Scope€Commentsà‚#H!H!G(#.PP6¸ (#¸ (##à2„12݃:›‚Ü#÷#ÝŒˆÐ `  ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùØ$Ýà0  àà0` (#(#àà  àÝ  Ý2.3à ` àAPPLICABILITYà‚#H!H!G(#.xx!` (#` (##à2„14݃9!ùØ$ó$ÝŒˆÐ Ø(  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚º%Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.3.1€SOCMI€CAR€Unità‚#H!H!G(#.ÀÀ(¸ (#¸ (##à2„14݃:›‚º%Õ%ÝŒˆÐ  ð  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚¨&Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý2.3.2€Pointer€Paragraphs€in€Referencing€Subpartsà‚#H!H!G(#.ààD¸ (#¸ (##à2„18݃:›‚¨&Ã&ÝŒˆÐ h¸  ÐŒÝ  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(#(#àà  àÝ  Ý3.3à ` àPROCESS€VENTSà‚#H!H!G(#.xx!` (#` (##à3„32݃9!ùû./ÝŒˆÐ 8ˆ ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùÝ/Ýà0  àà0` (#(#àà  àÝ  Ý3.4à ` àTRANSFER€RACKSà‚#H!H!G(#.ðð"` (#` (##à3„40݃9!ùÝ/ø/ÝŒˆÐ P ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùÀ0Ýà0  àà0` (#(#àà  àÝ  Ý3.5à ` àEQUIPMENT€LEAKSà‚#H!H!G(#.hh#` (#` (##à3„43݃9!ùÀ0Û0ÝŒˆÐ È ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚¤1Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.1€€Leak€Detectionà‚#H!H!G(#.88)¸ (#¸ (##à3„43݃:›‚¤1¿1ÝŒˆÐ à ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚“2Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.2€€Leak€Repairà‚#H!H!G(#.ÐÐ&¸ (#¸ (##à3„45݃:›‚“2®2ÝŒˆÐ X¨ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚3Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.3€€Delay€of€Repairà‚#H!H!G(#.°°*¸ (#¸ (##à3„48݃:›‚3š3ÝŒˆÐ  p ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚o4Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.4€€Valves„„Difficult„€and€Unsafe„to„Monitorà‚#H!H!G(#.hhC¸ (#¸ (##à3„48݃:›‚o4Š4ÝŒˆÐ è8 ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚x5Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.5€€Valves„„Subgrouping€and€Monitoring€Ýƒ:›‚x5“5݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚V6Ýà0  àà0` (#(#àà0¸ ` (#` 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ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚O7Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.6€€Valves„„Other€Commentsà‚#H!H!G(#.øø1¸ (#¸ (##à3„52݃:›‚O7j7ÝŒˆÐ @" ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚F8Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.7€€Pumps„„Percent€Leaking€Pumps€Calculationà‚#H!H!G(#.hhC¸ (#¸ (##à3„54݃:›‚F8a8ÝŒˆÐ  X# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚O9Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.8€€Pumps„„Visual€Inspectionsà‚#H!H!G(#.``4¸ (#¸ (##à3„56݃:›‚O9j9ÝŒˆÐ Ð $ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚I:Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.9€€Pumps„„Other€Commentsà‚#H!H!G(#.€€0¸ (#¸ (##à3„58݃:›‚I:d:ÝŒˆÐ ˜!è% ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚?;Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.10€Connectors„„Exemptions€to€the€Connector݃:›‚?;Z;݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚!<Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ýà0¸ ¸ (#¸ (#à€€Standardsà‚#H!H!G(#.àà$¸ (#¸ (##à3„61݃:›‚!<<<ÝŒˆÐ (#x' ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚=Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.11€Connectors„„Other€Commentsà‚#H!H!G(#.ØØ5¸ (#¸ (##à3„64݃:›‚=5=ÝŒˆÐ ð#@( ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚>Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.12€Monitoring€Instrument€Proceduresà‚#H!H!G(#.¨¨;¸ (#¸ (##à3„65݃:›‚>0>ÝŒˆÐ ¸$ ) ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚?Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.13€Compressorsà‚#H!H!G(#.ÐÐ&¸ (#¸ (##à3„67݃:›‚?1?ÝŒˆÐ €%Ð * ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚@Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.14€Sampling€Connection€Systemsà‚#H!H!G(#.PP6¸ (#¸ (##à3„68݃:›‚@@ÝŒˆÐ H&˜!+ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚þ@Ýà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.15€Enclosed„Vented€Process€Unitsà‚#H!H!G(#.@@8¸ (#¸ (##à3„69݃:›‚þ@AÝŒˆÐ '`", ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚üAÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.16€Batch€Product„„Processesà‚#H!H!G(#.èè3¸ (#¸ (##à3„70݃:›‚üABÝŒˆÐ Ø'(#- ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚õBÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.17€Periodic€Report€Contentsà‚#H!H!G(#.èè3¸ (#¸ (##à3„71݃:›‚õBCÝŒˆÐ  (ð#. ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚îCÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.18€Alternatives€and€Exemptionsà‚#H!H!G(#.PP6¸ (#¸ (##à3„73݃:›‚îC DÝŒˆÐ h)¸$/ ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚êDÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.5.19€Other€Equipment€Leak€Commentsà‚#H!H!G(#.@@8¸ (#¸ (##à3„73݃:›‚êDEÝŒˆÐ  0*€%0  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚ìEÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý݃:›‚ìEF݌Р¸ (#¸ (# ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ù FÝà0  àà0` (#(#àà  àÝ  Ý3.6à ` àCLOSED€VENT€SYSTEMS€AND€CONTROL€DEVICESà‚#H!H!G(#.¨¨;` (#` (##à3„75݃9!ù F»FÝŒˆÐ „ È ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚œGÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.6.1€€Performance€Testsà‚#H!H!G(#.  ,¸ (#¸ (##à3„75݃:›‚œG·GÝŒˆÐ L  ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚ŽHÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.6.2€€Control€Requirementsà‚#H!H!G(#./¸ (#¸ (##à3„77݃:›‚ŽH©HÝŒˆÐ  X ÐŒÝ  ÝÝ‚:›‚ÿÝÝ  ÝÝ‚:›‚ƒIÝà0  àà0` (#(#àà0¸ ` (#` (#àà ` àÝ  Ý3.6.3€€Monitoring,€Recordkeeping,€and€Reportingà‚#H!H!G(#.hhC¸ (#¸ (##à3„81݃:›‚ƒIžIÝŒˆÐ Ü  ÐŒÝ  ÝÝ‚8ÿÿÿÝÝ  ÝÝ‚8ÿÿŒJÝÌà0  àà ° àÝ  Ý4.0€IMPLEMENTATION€AND€TITLE€V€à‚#À!À!H(#.88)(#(##à4„1݃8ÿÿŒJ§JÝŒˆÐ l ° ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ù]KÝà0  àà0` (#(#àà  àÝ  Ý4.1€€IMPLEMENTATIONà h àà‚#À!À!H(#.hh#` (#` (##à4„1݃9!ù]KxKÝŒˆÐ 4x ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùALÝà0  àà0` (#(#àà  àÝ  Ý4.2à ` àTITLE€Và‚#À!À!H(#.¨ ¨ ` (#` (##à4„4݃9!ùAL\LÝŒˆÐ ü@ ÐŒÝ  ÝÝ‚8ÿÿÿÝÝ  ÝÝ‚8ÿÿMÝÌà0  àà ° àÝ  Ý5.0€€CHANGES€TO€THE€EQUIPMENT€LEAKS€REFERENCING€SUBPARTSà‚#À!À!H(#.ððB(#(##à5„1݃8ÿÿM7MÝŒˆÐ ŒÐ  ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùNÝà0  àà0` (#(#àà  àÝ  Ý5.1à ` àCLARIFICATION€OF€INTENTà‚#À!À!H(#.((+` (#` (##à5„1݃9!ùN!NÝŒˆÐ T˜  ÐŒÝ  ÝÝ‚9!ùÿÝÝ  ÝÝ‚9!ùñNÝà0  àà0` (#(#àà  àÝ  Ý5.2à ` àCLARIFYING€OR€TYPOGRAPHICAL€EDITSà‚#À!À!H(#.ØØ5` (#` (##à5„6݃9!ùñN OÝŒˆÐ `  ÐŒÝ  ÝÝ‚8ÿÿÿÝÝ  ÝÝ‚8ÿÿæOÝÌà0  àà ° àÝ  Ý6.0€€MISCELLANEOUSà‚#À!À!H(#. (#(##à6„1݃8ÿÿæOPÝŒˆÐ ¬ð  ÐŒÝ  ÝÓ {ÓÐ  t¸  ÐÙÙÑ€<ÑØØÖ€DDÖÓ€Óà@ìì*ìàˆ¹Ó  ÓÌÓ8QÓÓ  ÓÌÌÔ  Ô1.0€€INTRODUCTIONÔ cQÔÌÌÌÓUQÓà  àOn€October€28,€1998,€the€U.S.€Environmental€ProtectionÏAgency€(EPA)€proposed€the€ð ðConsolidated€Federal€Air€Rule€(CAR):ÏSynthetic€Organic€Chemical€Manufacturing€Industryðð€(63€FR€57748).€ÏThe€Consolidated€Federal€Air€Rule€(CAR)€is€a€consolidation€ofÏFederal€air€rules€affecting€the€synthetic€chemical€organicÏmanufacturing€industry€(SOCMI).€€We€selected€the€Federal€airÏrules€applying€to€the€SOCMI€for€a€pilot€project€to€study€theÏfeasibility€and€practical€implications€of€consolidating€andÏstreamlining€existing€rules,€and€to€establish€a€workable€processÏfor€consolidation€that€can€be€applied€to€other€consolidationÏefforts€in€the€future.€€The€CAR€is€one€of€the€initiativesÏannounced€by€President€Clinton€and€Vice€President€AlGore€onÏMarch€16,€1995€to€reinvent€environmental€regulation.Ìà  àWe€solicited€public€comments€on€the€success€of€this€pilotÏproject€as€measured€against€the€10€principles€for€reinventingÏenvironmental€regulation,€which€are€listed€in€the€proposalÏpreamble€(63€FR€57792).€€We€received€comments€on€these€issues€asÏwell€as€other€issues€raised€by€the€commenters.€€We€also€solicitedÏpublic€comments€on€whether€the€CAR€meets€specific€goals,€whichÏare€discussed€in€sections€VI€and€XII€of€the€proposal€preambleÏ(63FR€57759€and€57792).€€A€public€hearing€was€offered,€but€noneÏwas€requested.€€At€the€request€of€several€parties,€we€reopenedÏthe€comment€period€for€30€days€so€that€all€parties€could€haveÏadditional€time€to€prepare€comments€on€the€proposed€rule.€€TheÏEPA€received€written€public€comments€from€the€commenters€listedÏin€table€1.Ìà  àThis€document€summarizes€the€comments€received€and€presentsÏEPAððs€responses.€€The€comments€have€been€grouped€into€sections€byÐ ˆ,Ø'D Ðsubject.€€Section€2.0€contains€comments€of€a€general€nature,€suchÏas€those€addressing€the€scope,€applicability,€structure,€andÏformat€of€the€rule.€€Section€3.0€presents€comments€specific€toÏeach€of€the€subparts€of€the€proposed€rule€(general€provisions,Ïstorage€vessels,€process€vents,€transfer€racks,€equipment€leaks,Ïand€closed€vent€systems€and€control€devices).€€Section€4.0€listsÏcomments€on€implementation€issues€and€title€V€interaction.€ÏSection€5.0€hosts€the€comments€EPA€received€on€the€proposedÏchanges€to€the€equipment€leaks€referencing€subparts.€€Finally,Ïsection€6.0€concludes€by€listing€miscellaneous€comments.ÌÌÐ  ”ä  ÐÓ  ÓÓ€ÓTABLE€1.€€LIST€OF€COMMENTERSÌÌÓøZÓÔ*‹ƒG?Hddd Xdd Xdd X°(#°(#‹ÔÔ,m dd ÔÔ, dd ÔÔ+  ÔÐ $ @ €€„„$ÐDocument€NumberÐ '¤ô „„'ÐCommenterÐ #¤ô  #ÐIV„D„01Ð  (x ÐÔ‡*XlÿXXLXlÿÔB.M.€Higgins,€Chair,€STAPPA€Air€ToxicsÐ (x ÐCommittee,€and€R.H.€Colby,€Chair,ÏALAPCO€Air€Toxics€Committee,€State€andÏTerritorial€Air€Pollution€ProgramÏAdministrators/Association€of€LocalÏAir€Pollution€Control€OfficialsÔ#†LXlÿXX*Xlÿ±\#ÔÔ‡*XlÿXXLXlÿÔÐ  `  Ð(Request€to€extend€comment€period.)Ð  Ø (  ÐIV„D„02Ð  4„  ÐN.L.€Morrow,€Safety€and€EnvironmentalÏAffairs€Division,€Exxon€ChemicalÏAmericas€(ECA),€Houston,€TXÌÔ#†LXlÿXX*XlÿÜ]#ÔÔ‡*XlÿXXLXlÿÔ(Request€to€extend€comment€period.)Ô#†LXlÿXX*Xlÿê^#ÔÔ‡*XlÿXXLXlÿÔÐ  ŒÜ  ÐIV„D„03Ð  è8  ÐComments€of€Millennium€SpecialtyÏChemicals,€Inc.€(MSC)€and€Bush€BoakeÏAllen,€Inc.€(BBA)€(collectively,€theÏTerpene€Processors),€submitted€by€H.T.ÏVinyard,€Jr.,€Counsel,€Smith,€Hulsey€&ÏBusey,€Jacksonville,€FLÐ  Ð  ÐIV„G„01Ð  ,| ÐL.€Platt,€EH&S€Regulatory€ManagementÏExpertise€Center,€Dow€ChemicalÏCompany,€Freeport,€TXÐ  ¼  ÐIV„G„02Ð  h ÐSupplemental€comments€by€L.€Platt,ÏEH&S€Regulatory€Management€ExpertiseÏCenter,€Dow€Chemical€Company,ÏFreeport,€TX€(duplicate)Ð  pÀ! ÐVI„D„01Ð  Ì" ÐB.€Mathur,€Chief,€Bureau€of€Air,ÏIllinois€Environmental€ProtectionÏAgency,€Springfield,€ILÐ  \¬% ÐVI„D„02Ð  ¸ & ÐN.L.€Morrow,€Exxon€Chemical€AmericasÏ(ECA),€Houston,€TXÐ  €!Ð( ÐVI„D„03Ð  Ü",) ÐR.I.€Zvaners,€Senior€Manager,ÏEnvironmental€Policy,€ChemicalÏManufacturers€Association€(CMA),ÏArlington,€VAÐ  4%„ - ÐVI„D„04Ð  &à!. ÐJ.L.€Woolbert,€Technical€Associate,ÏEastman€Chemical€Company,€Longview,€TXÐ  X'¨"0 ÐVI„D„05Ð  ´($1 ÐN.€Dee,€Director,€EnvironmentalÏAffairs,€National€Petrochemical€&ÏRefiners€Association€(NPRA),ÏWashington,€DCâ âÐ   +\&5 ÐVI„D„06Ð  ˜d Ðâ âB.M.€Higgins,€Chair,€STAPPA€Air€ToxicsÏCommittee,€and€R.H.€Colby,€Chair,ÏALAPCO€Air€Toxics€Committee,€State€andÏTerritorial€Air€Pollution€ProgramÏAdministrators/Association€of€LocalÏAir€Pollution€Control€OfficialsÐ  € L ÐVI„G„01Ð  Ü ¨ ÐComments€of€Stepan€Company,€submittedÏby€P.F.€Sharkey,€Attorney,€Mayer,ÏBrown,€&€Platt,€Chicago,€ILÐ  l 8  ÐVI„G„02Ð  È”  ÐJ.S.€Pew,€Attorney,€Earthjustice€LegalÏDefense€Fund,€Washington,€DCÐ  \  ÐVI„G„03Ð  ì¸  ÐJ.€Marsh,€Regulatory€Affairs€Director,ÏChemical€Industry€Council€of€IllinoisÏ(CICI),€Rosemont,€ILÐ  |H  ÐVI„G„04Ð  ؤ  ÐSupplemental€comments€of€StepanÏCompany,€submitted€by€P.F.€Sharkey,ÏAttorney,€Mayer,€Brown,€&€Platt,ÏChicago,€IL€(duplicate)Ð  0ü ÐVI„G„05Ð  ŒX ÐN.€Carlson€Manager,€EnvironmentalÏPrograms,€Elf€Atochem€North€America,ÏInc.,€Philadelphia,€PAÔ#†LXlÿXX*XlÿO_#ÔÔ‡*XlÿXXLXlÿÔÐ è  ÐÔ#†LXlÿXX*Xlÿbh#ÔÐ  à ÐØØÑ€=<ÑÓ€ÓÌÌÌÌÓ  ÓÔ  Ô2.0€€GENERALÔ iÔÌÌÌÓiÓòòà  àCommentóó:€€Several€commenters€(VI-D-02,€VI-D-03,€VI-D-04,Ð ä 4 ÐVI-D-06)€commended€our€efforts€in€developing€the€CAR.€€OneÏcommenter€(VI-D-03)€praised€the€process€we€used€to€achieve€thisÏproposed€rule€and€encouraged€using€the€CAR€development€process€asÏa€model€in€other€rulemaking€activities.€Ìà  àòòResponseóó:€€We€appreciate€this€supporting€comment€and€agreeÐ À Ðthat€lessons€learned€from€the€CAR€development€process€will€beÏapplied€in€any€future€consolidation€efforts.€€Ìà  àòòCommentóó:€Several€commenters€(IV-G-01,€VI-G-03,€VI-D-03,Ð D” ÐVI-D-06,€VI-D-01)€support€our€proposal€of€making€the€CAR€anÏoptional€compliance€method.€€One€commenter€(IV-G-01)€citedÏseveral€examples,€some€from€the€preamble€of€the€proposed€rule,€ofÏwhy€the€CAR€should€be€optional.€€Another€commenter€(VI-D-03)Ïindicated€that€the€CAR€will€neither€benefit€all€facilities€norÏbenefit€all€facilities€equally,€therefore€facilities€will€need€toÏdetermine€the€benefit€of€the€CAR€on€a€case-by-case€basis.€€OneÏcommenter€(VI-D-06)€pointed€out€that€by€making€the€CAR€optional,Ïthe€CAR€affords€industry€a€reasonable€amount€of€flexibility€whileÏmaintaining€current€stringency€levels€and€avoiding€an€excessivelyÏcomplex€rule.Ìà  àòòResponseóó:€€We€appreciate€this€supporting€comment€and€noteÐ T$¤6 Ðthat€the€final€rule€retains€the€CAR€as€an€optional€complianceÏmethod.€€We€also€agree€that€the€CAR€would€not€necessarily€benefitÏevery€source€and€that€your€decisions€will€be€made€on€a€case„by„¼case€basis.Ìà  àòòCommentóó:€€One€commenter€(VI-D-06)€encouraged€us€to€developÐ 0*€%@ Ðconsolidated€air€rules€for€other€industry€sectors€in€the€future.€ÏThe€commenter€(VI-D-06)€suggested€that€rules€applying€to€surfaceÐ ˆ,Ø'D Ðcoating€operations€would€be€amendable€to€this€more€efficientÏcompliance€mechanism.Ìà  àòòResponseóó:€€We€will€monitor€how€this€pilot€consolidated€ruleÐ X Ðfor€the€SOCMI€is€received.€€Depending€on€its€popularity€andÏeffectiveness,€we€may€expand€the€current€rule€or€develop€otherÏconsolidated€rules,€given€available€resources.€ÌÌÔ  Ô2.1€CAR€OBJECTIVES€AND€BURDEN€REDUCTIONÔ ÐqÔÌà  àòòCommentóó:€€Two€commenters€(VI-D-02,€VI„D„03)€agree€that€theÐ `  ÐCAR€contains€explicit€solutions€for€many€troublesome€overlapÏissues€among€existing€regulations.€€Specifically,€the€commenterÏ(VI-D-03)€believes€the€CAR:€€(1)facilitates€implementation€andÏcompliance€by€clarifying€requirements,€(2)explicitly€describesÏhow€to€determine€applicability€and€rule€overlap€using€a€detailedÏlevel€of€analysis€rather€than€a€generic€level,€and€(3)addressesÏmany€overlap€issues€that€had€not€been€resolved€before€thisÏproposal€using€a€logical,€consistent,€and€rational€approach.Ìà  àòòResponseóó:€€We€thank€the€commenters€for€their€support€of€theÐ œì" Ðapproach€taken€by€the€CAR€to€reduce€confusion€regarding€overlapÏof€existing€regulations.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€agrees€that€the€CAR€meetsÐ  p( Ðthe€President's€objectives€for€rule€consolidation.€€Specifically,Ïthe€commenter€stated€that€the€CAR€incorporates€the€burdenÏreduction€options€allowed€in€earlier€rules€and€extends€theÏbenefits€to€other€compliance€areas.€€The€commenter€stated€thatÏthe€CAR€also€accomplishes€the€reinvention€objective€by€providingÏa€more€user„friendly€structure€and€format€and€throughÏclarification€and€simplification.€€Another€commenter€(IV-G-01)Ïstated€that€the€CAR€goes€a€long€way€in€reducing€conflicting€andÏoverlapping€requirements,€but€does€not€eliminate€them€which€isÏone€of€the€Presidentððs€objectives:€€to€"eliminate€conflicting€andÏoverlapping€Federal€air€compliance€requirements."Ìà  àòòResponseóó:€€We€appreciate€feedback€from€the€commenterÐ 0*€%@ Ðregarding€meeting€the€Presidentððs€objectives€for€ruleÏconsolidation.€€We€maintain,€however,€that€all€overlap€issuesÐ ˆ,Ø'D Ðhave€been€eliminated€for€the€rules€that€are€consolidated€in€theÏCAR.€€Not€all€rules€have€been€included€and€further€discussion€onÏthe€decisions€made€regarding€the€rules€to€include€in€the€CAR€isÏin€section2.2,€Scope.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€agreed€that€the€CARÐ ` ° Ðprovides€a€single€set€of€recordkeeping,€reporting,€and€monitoringÏrequirements€by€consolidating€the€requirements€of€several€rulesÏinto€one€rule.€€This€consolidation€provides€a€significantÏreduction€in€burden;€for€example,€the€consolidated€provisionsÏrequire€periodic€reporting€only€twice€annually.€€Two€commentersÏ(VI-D-02€and€VI-D-06)€asserted€that€the€consolidation€ofÏmonitoring,€reporting€and€recordkeeping€requirements€will€resultÏin€simplifying€regulatory€requirements,€encouraging€sourceÏcompliance€with€the€regulations,€and€providing€a€clearerÏoversight€role€for€the€implementing€agencies.€€Ìà  àòòResponseóó:€€We€thank€the€commenters€for€this€feedbackÐ D” Ðregarding€the€CARððs€consolidated€recordkeeping,€reporting,€andÏmonitoring€requirements.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€indicated€that,€asÐ È$ Ðcurrently€proposed,€the€CAR€does€not€eliminate€all€instances€ofÏoverlapping€requirements.€€The€commenter€(VI„G„03)€gave€anÏexample€when€a€product€accumulator€vessel€(either€distillate€orÏbottoms)€is€also€used€to€store€material,€it€is€subject€to€bothÏsubpartsV€and€FF€of€40CFRpart61.€€SubpartV€requires€productÏaccumulator€vessels€to€be€equipped€with€closed€vents€and€controlÏdevices,€but€subpartFF€does€not€limit€controls€to€closed€ventsÏand€control€devices.€€The€commenter€further€stated€that€subpartVÏrequired€leaks€in€the€closed€vent€system€to€be€repaired€withinÏ5days,€whereas€subpartFF€allows€these€units€to€leak€for€up€toÏ45days€before€repairs€are€required.€€The€commenter€(VI-G-03)Ïrecommended€that€the€CAR€should€directly€address€issues€such€asÏthe€multiple€uses€of€a€product€accumulator€vessel€and€shouldÏâ âeliminate€persistent€conflicts€under€existing€regulations.Ð 0*€%@ ÐÔ& ¸ Ôâ âà  àòòResponseóó:€The€provisions€of€40CFR€part61,€subpartFF€applyÐ ° Ðto€waste€management€units.€€The€provisions€of€40CFR€part61,ÏsubpartV€apply€to€surge€control€vessels€and€bottoms€receivers.€ÏThe€decision€as€to€which€rule€applies€would€have€already€beenÏmade€prior€to€using€the€CAR.€€The€commenter€did€not€elaborate€onÏthe€situation€where€one€vessel€could€be€subject€to€both€rules€andÏwe€can€not€identify€a€situation€where€this€might€happen.€€Also,ÏsubpartFF€is€not€within€the€scope€of€the€CAR;€all€overlappingÏprovisions€have€been€eliminated€among€the€rules€consolidated€inÏthe€CAR.€€Ô'¸ °AÔÌà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€that€the€degreeÐ h¸  Ðof€burden€reduction€from€using€the€CAR€has€not€beenÏsubstantiated.€€The€commenter€(IV-G-01)€further€asserted€thatÏburden€reductions€from€the€CAR€will€vary€from€facility€toÏfacility€and€that,€even€if€the€overall€average€burden€reductionÏis€significant,€the€reduction€to€any€one€facility€may€be€so€smallÏthat€it€would€not€offset€the€additional€time,€effort,€and€expenseÏnecessary€to€train€personnel€to€use€the€CAR.€€Such€facilities€mayÏchoose€not€to€use€the€CAR.Ìà  àòòResponseóó:€€We€agree€with€the€comment€that€burden€reductionsÐ ôD& Ðfrom€using€the€CAR€will€vary€among€facilities€and€the€burdenÏreduction€to€any€one€facility€may€not€offset€the€time,€effort,Ïand€expense€of€training€personnel€to€use€the€CAR.€€SuchÏfacilities€may€choose€not€to€use€the€CAR.€€However,€we€point€outÏthat€not€all€facilities€will€fall€into€this€category.€€ManyÏfacilities€will€incur€a€benefit€from€using€the€CAR,€especiallyÏthose€subject€to€several€of€the€referencing€subparts.€€While€theÏtrue€burden€reduction€of€any€proposed€rule€cannot€be€known€priorÏto€the€rule's€promulgation€and€implementation,€we€have€made€everyÏeffort€to€reasonably€estimate€the€burden€reduction€attributableÏto€the€CAR.€€We€maintain€that€several€benefits€can€be€obtained€byÏsources€complying€with€the€CAR€as€described€in€the€proposalÏpreamble€at€63FR57790.€€Each€source€can€assess€its€benefits€andÏdecide€whether€to€use€the€CAR€as€a€compliance€option.€€TheseÏbenefits€were€not€questioned€by€the€commenter.Ð ˆ,Ø'D Ðà  àòòCommentóó:€€One€commenter€(IV-G-01)€indicated€that€switchingÐ ° Ðfrom€compliance€with€one€rule€to€compliance€with€another€ruleÏrequires€a€steep€learning€curve€on€the€part€of€company€andÏfacility€personnel.€€The€commenter€(IV-G-01)€suggested€that€anyÏtime€such€a€switch€occurs€there€is€increased€potential€forÏnoncompliance€until€the€facility€becomes€sufficiently€experiencedÏwith€the€new€rule.€€The€commenter€(IV-G-01)€suggested€that€thisÏwould€be€a€particular€concern€with€the€CAR,€because€it€is€moreÏdetailed€in€some€respects€than€the€rules€it€would€replace.Ìà  àòòResponseóó:€€We€concur€with€the€commenter's€assertion€that€theÐ <Œ  ÐCAR€will€require€a€learning€curve€on€the€part€of€company€andÏfacility€personnel.€€However,€the€provisions€in€the€CAR€are€basedÏon€provisions€in€the€referencing€subparts€with€which€sources€mustÏalready€comply.€€Therefore,€company€and€facility€personnel€shouldÏfind€that€they€are€familiar€with€most€of€the€provisions€in€theÏCAR.€€Where€these€provisions€differ€is€usually€a€reduction€inÏburden€or€an€increase€in€flexibility,€or€a€limited€increase€inÏburden,€such€as€with€the€requirements€for€halogen€scrubbers.€€AnyÏsource€believing€that€the€learning€curve€is€too€steep€canÏcontinue€to€comply€with€the€existing€subparts€with€which€they€areÏfamiliar.€€Additionally,€a€source€considering€using€the€CAR€canÏtake€any€amount€of€time€necessary€before€making€the€decision€toÏdo€so.€€Therefore,€we€do€not€concur€that€there€will€be€anÏincrease€in€misunderstanding€of€compliance€obligations.€€It€isÏimportant€to€remember€that,€at€all€times,€facilities€must€be€inÏcompliance€either€with€the€referencing€subparts€or€the€CAR.€€WhenÏchoosing€to€comply€with€the€CAR,€facilities€are€obligated€toÏcomply€with€the€applicable€referencing€subparts€until€the€CAR€isÏimplemented.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€alleged€that€the€CAR'sÐ ¬&ü!: Ðimposition€of€more€stringent€control€requirements€is€aÏsubstantial€disincentive€to€using€the€CAR.€€The€commenterÏ(VI-G-03)€contended€that€we€should€reconsider€whether€theÏâ âconsolidation€of€procedural€requirements€such€as€monitoring€andÐ \+¬&B Ðreporting€necessarily€requires€application€of€the€most€stringentÏlevel€of€control€at€any€given€SOCMI€CAR€unit(SCU).€€Ìâ âà  àOne€commenter€(VI-D-03)€accepts€the€imposition€of€a€halogenÏscrubber€requirement€for€some€new€source€performance€standardÏ(NSPS)€process€vents,€because€it€is€acceptable€to€have€occasionalÏincreased€stringency€as€a€trade„off€for€the€rule€simplicityÏprovided€by€the€CAR,€particularly€since€the€CAR€is€an€optionalÏrule.Ìà  àòòResponseóó:€€The€commenter€(VI-G-03)€did€not€specify€theÐ `  Ðincreases€in€stringency€that€are€substantial€disincentives€toÏusing€the€CAR.€€However,€we€assume€the€commenter€is€referring€toÏthe€proposed€increase€in€control€stringency€due€to€controlledÏfittings€being€applied€to€40CFR€part60,€subparts€Ka€and€KbÏtanks;€halogen€vent€stream€control€applied€to€40CFRpart60,ÏsubpartsIII,€NNN,€and€RRR€process€vents€and€40CFR€part61,ÏsubpartBB€transfer€racks;€and€instrument€monitoring€forÏconnectors€applied€to€connectors€subject€to€40CFR€part60,ÏsubpartVV€and€40CFR€part61,€subpartV.€€In€these€cases,€weÏproposed€an€increase€in€control€stringency€because€maintainingÏthe€differences€in€stringency€would€have€made€for€a€veryÏcomplicated€rule€that€was€not€actually€a€consolidation.€€Also,Ïthe€stringency€could€not€be€decreased€for€the€most€stringent€ruleÏbecause€this€would€cause€less€emissions€to€be€controlled€thanÏrequired€by€the€most€stringent€rule.€€Ìà  àWe€agree€with€the€commenter€(VI-D-03)€that€the€optionalÏnature€of€the€CAR€alleviates€concern€with€the€rare€increases€inÏstringency.€€We€also€maintain€that€the€level€of€burden€associatedÏwith€the€control€of€additional€fittings€and€control€ofÏhalogenated€vent€streams€is€small€when€considering€that€theÏnumber€of€SOCMI€tanks€and€halogenated€vent€streams€that€would€notÏbe€subject€to€the€hazardous€organic€NESHAP€(HON)€is€small.€€ThereÏare€few€SOCMI€sources€that€would€experience€this€increase€inÏstringency.€€Also,€if€an€individual€source€would€not€experience€aÏnet€benefit€from€using€the€CAR,€there€is€no€requirement€forcingÏthe€source€into€the€CAR.€€With€the€change€in€the€final€ruleÐ ˆ,Ø'D Ðeliminating€the€SCU€concept€(see€section2.3.1)€and€allowing€anyÏsource€or€affected€facility€subject€to€a€referencing€subpart€toÏopt€into€the€CAR,€there€is€even€more€flexibility€for€a€facilityÏto€use€the€CAR€only€where€it€benefits€the€facility.Ìà  àFor€connectors,€however,€we€have€been€persuaded€that€theÏincrease€in€burden€of€instrument€connector€monitoring€for€sourcesÏnot€subject€to€the€HON€but€subject€to€40CFR€part60,€subpartVVÏor€40CFR€part61,€subpartV€could€be€a€substantial€disincentiveÏto€using€the€CAR€for€these€sources.€€We€have€provided€alternativeÏprovisions€to€the€proposed€instrument€connector€monitoring€thatÏfollow€the€inspection€requirements€for€connectors€in€subpartsVÏand€VV.€€These€alternative€provisions€are€an€option€forÏconnectors€subject€to€subpartsV€or€VV€but€not€the€HON.€€SeeÏsection3.5.10€for€further€discussion€on€the€change€to€theÏconnector€provisions.€€ÌÔ  ÔÌ2.2à  àSCOPE€Ô »žÔÐ pÀ  ÐÔ  Ô2.2.1€€òòIncorporating€or€Allowing€Other€Rules€in€the€CARóóÔ ŸÔÐ œì" Ðà  àòòCommentóó:€€Several€commenters€(IV-G-01,€VI-D-02,€VI-D-03,Ð È$ ÐVI-D-04,€VI-D-05)€support€increasing€the€scope€of€the€CAR€so€thatÏit€completely€incorporates€other€rules€applicable€to€SOCMIÏsources.€€All€of€these€commenters€(IV-G-01,€VI-D-02,€VI-D-03,ÏVI-D-04,€VI-D-05)€specifically€mentioned€the€HON€wastewaterÏprovisions€(40CFR€part63,€subpartG);€four€of€the€commentersÏ(VI-D-02,€VI-D-03,€VI-D-04,€VI-D-05)€specifically€mentioned€theÏBenzene€Waste€NESHAP€provisions€(40€CFR€part61,€subpartFF);€andÏthree€commenters€(IV-G-01,€VI-D-02,€VI-D-04)€specificallyÏmentioned€the€SOCMI€wastewater€NSPS€(40CFR€part60,ÏsubpartYYY).€€One€commenter€(IV-G-01)€requested€consolidation€ofÏseveral€other€rules€affecting€SOCMI€including€HON€Group2Ïtransfer€racks€and€storage€vessels,€emission€points€not€requiringÏcontrol€under€the€non„HON€referencing€subparts,€marine€loadingÏunder€40CFR€part61,€subpartBB,€and€equipment€leak€provisionsÏunder€resource€conservation€and€recovery€act€(RCRA)€rulesÏsubpartBB.€€One€commenter€(IV-G-01)€argued€that,€withoutÐ ˆ,Ø'D Ðincluding€additional€regulations€in€the€consolidation,€the€CARÏcannot€achieve€its€goals€of€(1)having€a€single€set€ofÏconsolidated€requirements€for€the€SOCMI,€and€(2)reducing€theÏcomplexities€of€overlapping€regulations€among€different€FederalÏair€programs.€€The€commenter€(IV-G-01)€alleges€that€sources,€inÏmost€cases,€have€no€incentive€to€use€the€CAR€and€concludes€thatÏthe€CAR€must€consolidate€several€additional€rules€in€order€toÏprovide€this€incentive.€€Ìà  àFour€commenters€(VI-D-01,€VI-D-02,€VI-D-03,€VI-D-05)€wereÏspecifically€interested€in€consolidating€all€rules€that€may€applyÏto€a€facility€that€has€a€SOCMI€process€unit€on€site.€€All€fourÏcommenters€requested€that€sources€subject€to€the€PetroleumÏRefinery€NESHAP,€40CFR€part63,€subpartCC€be€allowed€to€use€theÏCAR€to€comply€with€subpartCC.€€Two€commenters€(VI-D-02,€VI-D-03)Ïalso€referred€to€the€following€40CFR€part63€subparts€as€rulesÏthat€should€use€the€CAR€as€a€compliance€option:€€I,€U,€W,€DD,€TT,ÏOO,€UU,€WW,€and€JJJ.€€The€commenter€(VI-D-03)€encouraged€us€toÏdefine€CAR€requirements€as€acceptable€for€requirements€in€non„¼consolidated€rules€that€are€likely€to€overlap€with€the€CAR€atÏSOCMI€sites.€€The€commenter€(VI-D-03)€noted€that€one€goal€of€theÏCAR€is€to€allow€similar€and€shared€systems€at€SOCMI€facilities€toÏuse€one€set€of€compliance€requirements.€€Therefore,€the€commenterÏ(VI„D-03)€concluded€it€is€important€to€assure€that€all€rules€thatÏcould€impact€those€facilities€are€considered€in€theÏconsolidation.€€Until€these€relevant€rules€are€added€to€the€CAR,Ïthe€commenter€(VI-D-03)€argued,€the€critical€overlaps€must€beÏaddressed€because€this€is,€perhaps,€the€single€largest€impedimentÏto€facilities€adopting€the€CAR.€€The€commenter€(VI-D-03)€assertedÏthat€maximizing€the€use€of€the€CAR€will€provide€the€most€burdenÏreduction€and€compliance€assurance€for€States€and€facilities.€ÏThe€commenter€(VI-D-03)€provided€examples€of€language€from€otherÏrules€that€address€overlap€as€well€as€recommended€changes€to€theÏlanguage€of€the€CAR€at€ñüñððñüññüñððñüñ65.1(c)€and€addition€of€new€language€atÏâ âñýñððñýññýñððñýñ65.1(n).Ð \+¬&B Ðà  àòòResponseóó:€€We€agree€that€the€CAR€does€not€consolidate€allÐ ° Ðâ ârules€applicable€to€the€SOCMI€or€to€sources€with€SOCMI€processesÏon€site.€€However,€as€stated€in€the€preamble€(63FR57750),€theÏscope€of€the€CAR,€as€a€pilot€project,€was€limited€to€FederalÏClean€Air€Act€(Act)€rules€that€apply€to€SOCMI,€because€theseÏrules€would€provide€benefit€to€affected€sources,€yet€the€scopeÏwas€defined€well€enough€to€ensure€a€reasonable€chance€of€success.€ÏOther€rules€were€considered€in€this€consolidation,€but€theirÏincorporation€would€have€made€the€process€unmanageable€in€aÏreasonable€amount€of€time.€€Some€rules€considered€forÏconsolidation€were€subject€to€substantial€changes€in€litigationÏwhen€the€CAR€process€started€and€others€are€currently€inÏlitigation.€€To€include€additional€rules€in€the€consolidationÏeffort€at€this€point€would€require€a€supplemental€proposal.€€WeÏconsider€our€efforts€better€spent€finishing€this€proposal.€€WeÏmaintain€that€there€can€be€significant€burden€reduction€with€theÏrules€that€are€currently€consolidated€and€that€reduction€willÏpersuade€sources€to€use€the€CAR.€€We€do€not€agree€that€sourcesÏhave€no€incentive€to€use€the€CAR.Ìà  àòòCommentóó:€€Four€commenters€(VI-D-01,€VI-D-02,€VI-D-06,Ð ôD& ÐVI-G-03)€requested€that€we€consider€using€the€CAR€as€a€complianceÏoption€for€new€regulations.€€Two€commenters€(VI-D-01,€VI-D-02)Ïspecifically€mentioned€the€Miscellaneous€Organic€NESHAP;€oneÏcommenter€(VI-D-06)€mentioned€the€Generic€Maximum€AchievableÏControl€Technology€(MACT);€and€one€commenter€(VI-D-02)€mentionedÏthe€Ethylene€MACT.€€One€commenter€(VI-D-01)€recommended€that€anyÏnew€regulations€applicable€to€the€SOCMI€that€may€be€promulgatedÏshould€be€incorporated€into€the€CAR€for€use€by€affected€sourcesÏthat€have€opted€to€use€the€CAR.€€The€commenter€(VI-D-01)€statedÏthat€in€this€case,€additional€incorporated€rules€would€followÏpart70€on€opting€new€rules€into€a€title€V€permit€as€they€areÏpromulgated.Ìà  àòòResponseóó:€€We€may€consider€using€the€CAR€in€futureÐ 0*€%@ Ðrulemakings.€€Because€of€the€timing€of€the€generic€MACTððsÏpromulgation,€it€was€not€possible€to€consolidate€that€rule€intoÐ ˆ,Ø'D Ðthe€CAR.€€However,€the€generic€MACT€employs€similar€structure,Ïconcept,€and€provisions€as€the€CAR.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€noted€that€the€proposedÐ X Ðlanguage€in€ñýñððñýññýñððñýñ60.560(j)€and€(k)€would€not€allow€polystyreneÏprocess€vents€subject€to€40CFRpart60,€subpartDDD,€to€use€theÏCAR.€€The€commenter€pointed€out€that€similar€polyethylene€processÏvents€subject€to€subpartDDD€are€allowed€to€use€the€CAR.€€TheÏcommenter€suggested€that€this€exclusion€resulted€from€a€draftingÏproblem€and€provided€revised€language€to€allow€polyethylene€andÏpolystyrene€process€vents€the€option€of€complying€with€the€CAR.€Ìà  àòòResponseóó:€€We€agree€that€the€polystyrene€process€ventsÐ h¸  Ðsubject€to€subpartDDD€that€choose€the€control€device€or€flareÏcompliance€option€should€be€allowed€to€opt€into€the€CAR.€€We€haveÏedited€the€final€rule€to€allow€this€option.Ìà  àòòCommentóó:€€Some€commenters€(IV-G-01,€VI-D-02,€VI-D-03,Ð h ÐVI-D-04,€VI-D-06)€requested€that€rules€that€refer€to€referencingÏsubparts€should€be€allowed€to€use€the€CAR€as€a€compliance€option.€ÏThree€commenters€(IV-G-01,€VI-D-02,€VI-D-03)€specificallyÏmentioned€40CFR€part63,€subpartI€and€the€polymers€and€resinsÏMACT€standards.€€Two€commenters€(VI-D-04,€VI-D-06)€requested€anyÏMACT€standard€that€points€to€the€HON€be€allowed€the€option€toÏcomply€with€the€CAR.€€Two€commenters€(IV-D-02,€VI-D-03)€statedÏthat€subpartDDD€requires€compliance€with€subpartVV€forÏequipment€leaks.€€The€commenters€(VI-D„02,€VI-D-03)€indicatedÏthat€a€change€is€needed€in€ñýñððñýññýñððñýñ60.560€of€subpartDDD€to€make€clearÏthat€compliance€with€the€CAR€subpartF€for€equipment€leaks€isÏallowed€as€an€alternate€to€complying€with€40CFRpart60,ÏsubpartVV.€€The€commenter€(VI-D-02)€stated€that€the€CAR,€inÏgeneral,€is€unclear€on€the€situation€in€which€a€process€unit€isÏsubject€to€a€referencing€subpart€(in€this€case€subpartVV)€byÏreference€from€another€rule€(subpartDDD).€€The€commenterÏsuggested€that€we€amend€the€applicability€of€the€CAR€to€clearlyÏstate€the€options€for€these€types€of€units.€Ìà  àThe€commenter€(VI-D„03)€stated€that€additionally,€becauseÏ40CFRpart60,€subpartDDD€is€applicable€only€on€a€processÐ ˆ,Ø'D ÐÔ_Ôsection€by€process€section€basis,€a€preamble€discussion€is€neededÏrelative€to€Ô_Ôñýñððñýññýñððñýñ60.560(j)Ô_Ô€and€(k)€to€clarify€that€process€sectionsÏnot€triggering€the€applicability€of€40CFRpart60,€subpartDDDÏwill€not€become€subject€to€the€CAR€if€the€CAR€is€adopted.€TheÏcommenter€(VI-D-03)€provided€suggested€language€for€theseÏrecommended€revisions.ÌÔ& ì Ôà  àòòResponseóó:€We€have€not€expanded€the€scope€of€the€final€ruleÐ ¸   Ðto€include€other€regulations€that€refer€to€referencing€subparts.€ÏThe€details,€approach,€and€ramifications€of€allowing€the€CAR€forÏthese€other€rules€have€not€been€investigated.€€Many€of€the€rulesÏthat€point€to€the€CAR's€referencing€subparts€for€requirementsÏgenerally€have€complex€references,€with€conditions€and€exceptionsÏto€the€referencing€subparts.€€To€allow€these€rules€to€comply€withÏthe€CAR€would€require€us€to€study€the€conditions€and€exceptionsÏand€possibly€develop€detailed€references€for€compliance€with€theÏCAR.€€We€consider€our€efforts€better€spent€finishing€this€rule€soÏthat€the€burden€reductions€associated€with€it€can€be€used€as€soonÏas€possible.€€Furthermore,€expanding€the€scope€of€the€CAR€toÏother€rules€at€this€point€would€entail€additional€proposals.Ìà  àThe€proposal€preamble€contained€discussion€that€no€equipmentÏwould€become€subject€to€a€rule€just€because€the€CAR€was€used€forÏcompliance€[63€FR€57751].Ìà  àòòCommentóó:€€One€Ô'ì¸ ‡¿Ôcommenter€(VI-D-05)€requested€allowingÐ xÈ, Ðequipment€at€petroleum€refineries€subject€to€a€referencingÏsubpart€to€opt€into€the€CAR€on€the€basis€of€ease€of€complianceÏdetermination€by€all€parties,€a€reduction€in€paperwork€andÏadministrative€cost,€and€flexibility.€Ìà  àòòResponseóó:€€Under€the€proposed€CAR,€equipment€at€refineryÐ T$¤6 Ðprocesses€subject€to€referencing€subparts€that€were€on€the€sameÏplant€site€as€a€SCU€complying€with€the€CAR€could€opt€into€theÏCAR.€€However,€with€the€increase€in€flexibility€in€theÏapplicability€of€the€final€CAR€any€equipment€subject€to€aÏreferencing€subpart€can€use€the€CAR€as€a€compliance€option.€€SeeÏsection2.3€for€further€discussion€on€the€change€inÏapplicability.Ð ˆ,Ø'D ÐÔ  ÔÔ& X Ô2.2.2€€òòMiscellaneous€Scope€CommentsóóÔ ÍÆÔÐ ° Ðà  àÔ'X°ÚÆÔòòCommentóó:€€One€commenter€(VI-G-03)€asked€that€the€CAR€allowÐ Ü, Ðowners€or€operators€to€obtain€emission€reduction€credits€for€anyÏadditional€controls€required€under€the€CAR€that€are€moreÏstringent€than€the€controls€required€by€the€referencing€subparts.€ÏThe€commenter€stated€that€these€credits€would€be€in€addition€toÏthe€credits€the€unit€has€already€earned€according€to€a€voluntaryÏprogram.€€The€commenter€asserted€that€this€would€encourage€theÏuse€of€the€CAR.€€Ìà  àThe€commenter€(VI-G-03)€noted€that€SOCMI€sources€in€manyÏStates€voluntarily€apply€controls€in€excess€of€existingÏregulations€to€obtain€usable€and€marketable€emission€reductionÏcredits.€€The€commenter€(VI-G-03)€wanted€to€know€if€participantsÏin€the€State€programs€or€the€Federal€Early€Reduction€Program€willÏstill€get€credit€for€these€programs€if€they€opt€to€use€the€CAR.€ÏThe€commenter€was€concerned€that€the€CAR€would€require€an€ownerÏor€operator€to€give€up€existing€credits€or€the€ability€to€obtainÏfuture€credits€when€opting€into€the€CAR.€Ìà  àOne€commenter€(VI-G-03)€noted€that€the€monitoring€andÏrecordkeeping€requirements€for€units€subject€to€the€EarlyÏReduction€Program€in€part63,€subpartD€are€specified€in€theÏtitleV€permit€rather€than€in€the€rules€themselves.€€TheÏcommenter€stated€that€this€makes€it€unclear€whether€facilitiesÏwith€Early€Reduction€Units€can€opt€into€the€CAR.€€The€commenterÏ(VI-G-03)€supports€allowing€owners€and€operators€with€EarlyÏReduction€Units€to€opt€into€the€CAR€for€the€benefit€of€consistentÏregulation€of€storage€vessels€and€other€units.€€In€such€cases,Ïthe€commenter€stated€that€the€owner€or€operator€would€retain€theÏbenefit€of€early€reduction.Ìà  àòòResponseóó:€€The€CAR€does€not€have€an€emissions€averaging€orÐ ¬&ü!: Ðtrading€program€specifically€associated€with€it.€€Therefore,Ïthere€is€no€basis€to€establish€credits€or€debits€for€complianceÏwith€the€CAR.€€If€a€State€would€like€to€incorporate€the€CAR€intoÏtheir€voluntary€emissions€credit€program€and€the€program€does€notÏviolate€the€state€implementation€plan€(SIP)€this€is€within€theÐ ˆ,Ø'D ÐStates€purview€to€establish.€€Whether€a€State€gives€credits€forÏcompliance€with€the€CAR€depends€on€the€Stateððs€plan€and€theÏspecific€site.€€Whether€a€State€allows€sources€to€retain€existingÏcredits€or€generate€additional€credits€for€compliance€with€theÏCAR€may€affect€the€sourcesðð€decisions€to€use€the€CAR.€€It€shouldÏbe€noted,€however,€that€the€added€flexibility€of€opting€into€theÏCAR€on€an€equipment€basis€rather€than€an€SCU€(see€section2.3,ÏApplicability,€for€more€discussion€on€this)€has€given€theÏfacility€the€option€to€choose€the€equipment€complying€with€theÏCAR€that€will€give€the€most€benefit.Ìà  àThere€is€nothing€in€the€CAR€that€prohibits€all€or€part€of€anÏEarly€Reduction€Source€to€opt€into€the€CAR.€€However,€the€earlyÏreduction€limits€for€the€source€would€still€have€to€be€met€unlessÏthe€source€chooses€to€give€up€its€compliance€extension.€€Ìòòà  àCommentóó:€€One€commenter€(VI-D-04)€asserted€that€one€of€theÐ h Ðsubstantial€transition€costs€to€implement€the€CAR€at€existingÏfacilities€is€the€cost€related€to€incorporating€the€CAR€as€anÏalternative€compliance€approach€in€Part70€Operating€Permits.€ÏThe€commenter€pointed€out€that€if€the€rule€is€promulgated€veryÏsoon,€there€could€be€an€opportunity€in€the€State€of€Texas€forÏsome€SOCMI€sources€to€minimize€this€transition€cost€by€being€ableÏto€implement€the€CAR€into€their€initial€part70€permitÏapplications.€€The€commenter€recommended€that€the€rule€beÏfinalized€quickly.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€getting€the€CARÐ Ð 0 Ðout€in€a€reasonably€timely€manner€is€preferred,€not€only€so€thatÏthe€implementation€is€coordinated€with€the€Texas€TitleV€permitÏprogram,€but€also€to€allow€the€burden€reduction€opportunitiesÏprovided€to€the€Industry€to€be€used.€€We€have€processed€theÏcomments€received,€responded€to€the€comments€and€made€theÏappropriate€changes€to€the€regulation€in€a€reasonably€timelyÏmanner€given€the€complexity€of€the€rule.€€Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€praised€the€adoption€ofÐ 0*€%@ Ðthe€CAR€styles,€structures,€and€language€models€into€the€genericÏMACT€and€other€recent€rulemaking€actions€and€encouraged€us€toÐ ˆ,Ø'D Ðcontinue€this€approach€because€it€provides€significantÏopportunity€for€burden€reductions€in€regulatory€development.Ìà  àòòResponseóó:€We€thank€the€commenter€for€their€support.€Ð X ÐÔ  ÔÌÔ& „ Ô2.3à  àAPPLICABILITYÔ )ÙÔÐ ` ° ÐÔ  Ô2.3.1€òòSOCMI€CAR€UnitóóÔ …ÙÔÐ Œ Ü  Ðà  àòòÔ'„` 7ÙÔCommentóó:€€Several€commenters€(VI-D-01,€VI-D-03,€VI-D-06,Ð ¸   ÐVI-G-03)€commented€on€the€complexity€and€the€confusion€of€eitherÏthe€SCU€definition€or€the€assignment€procedures€or€both.€€ThreeÏcommenters€(VI-D-01,€VI-D-06,€VI-G-03)€stated€that€SCU€and€whatÏconstitutes€an€SCU€are€not€clearly€defined€in€the€rule.€€Two€ofÏthe€commenters€(VI-D-01,€VI-D-06)€suggested€that€the€CAR€includeÏsome€"real€world"€examples,€as€we€did€in€the€Early€ReductionÏrules.€€Ìà  àOne€commenter€(VI-G-03)€supports€the€proposal€to€allow€theÏoption€of€using€the€CAR€on€the€basis€of€individual€SCUððs€but€saidÏfurther€clarification€was€needed.€€The€commenter€(VI-D-03)Ïsuggested€describing€an€SCU€determination€in€the€following€way:€Ï(1)as€per€the€SCU€definition,€identify€all€equipment€associatedÏwith€the€process€that€is€impacted€or€could€be€impacted€by€theÏHON,€subpartIII,€NNN,€RRR,€and/or€VV€rule€requirements,Ï(2)subject€the€identified€equipment€to€a€review€of€theÏapplicable€underlying€rules€to€determine€the€"affected"Ïequipment,€and€(3)apply€the€CAR€only€to€the€"affected"Ïequipment.Ìà  àAnother€commenter€(VI-D-01)€noted€that€the€flexibility€ofÏthe€CAR€is€manifested€in€the€ability€of€an€affected€source€toÏdefine€the€affected€chemical€manufacturing€process€unit€(CMPU)Ïand€to€be€able€to€subgroup€the€CMPU,€which€will€clearly€defineÏthe€SCU's€affected€by€the€CAR.€€The€commenter€(VI-D-01)Ïrecommended€that€the€CAR€should€encourage€this€subcategorization.Ìà  àAnother€commenter€(VI-D-06)€believes€that€the€applicabilityÏprocedures€may€prohibit€implementation€at€the€State€and€localÏlevels.€€The€commenter€(VI-D-06)€specifically€cited€theÏassignment€procedures€in€Ô_Ôñýñððñýññýñððñýñ65.1(j)Ô_Ô€and€(k)€of€the€CAR€(emissionÐ ˆ,Ø'D Ðpoints€commonly€shared€between€process€units)€as€excessivelyÏcomplicated.€€The€commenter€(VI-D-06)€suggested€that€we€considerÏa€provision€that€would€allow€groups€of€like€equipment€subject€toÏone€of€the€referencing€subparts€(such€as€transfer€racks€orÏstorage€tanks)€to€implement€the€CAR,€while€other€portions€of€theÏSCU€may€continue€to€comply€with€applicable€referencing€subparts.Ìà  àAnother€commenter€(VI-D-01)€expressed€concern€that€the€CARÏmay€be€applicable€to€only€a€fraction€of€the€tanks€at€a€facility.€ÏThe€commenter€(VI-D-01)€recommended€that€if€more€than€50percentÏof€the€storage€vessels€at€a€source€are€subject€to€the€CAR,€thenÏthe€CAR€should€cover€all€storage€vessels€at€that€source.€€TheÏcommenter€(VI-D-01)€contends€that€this€approach€will€simplifyÏapplicability,€recordkeeping,€and€reporting.€Ìà  àòòResponseóó:€€The€proposed€CAR€required€facilities€to€opt€intoÐ ì< Ðthe€CAR€on€a€SCU€basis€because€we€thought€this€would€reduceÏpotential€complexity€of€implementing€the€CAR€for€regulatoryÏauthorities.€€During€development€of€the€proposed€CAR,€StateÏrepresentatives€expressed€a€desire€to€allow€larger€portions€ofÏsources€to€opt€in€as€opposed€to€a€more€piecemeal€approach,Ïindicating€that€it€would€be€easier€for€them€to€enforce€the€rule.€ÏThey€felt€that€opting€in€on€an€SCU€basis€would€provide€a€smallÏenough€collection€of€emission€points€and€equipment€to€provideÏoperational€flexibility€to€the€facility,€but€a€large€enoughÏcollection€to€avoid€possible€confusion€and€additional€burden€forÏregulatory€authorities.Ìà  àHowever,€after€reviewing€the€comments€regarding€the€SCU€andÏassignment€procedures,€we€have€concluded€that€the€perceivedÏconfusion€and€complexity€added€by€the€SCU€assignment€proceduresÏoutweigh€the€reduction€in€burden€and€complexity€to€StateÏinspectors€by€requiring€facilities€to€opt€in€on€a€SCU€(largeÏcollection€of€equipment)€basis.€€Keeping€track€of€which€equipmentÏis€in€or€out€of€a€SCU€and€which€SCU€is€complying€with€the€CARÏappears€to€be€more€burdensome€than€keeping€track€of€whichÏemission€point€is€complying€with€what€rule€which€must€be€doneÏanyway.€€We€have€simplified€the€applicability€provisions€of€theÐ ˆ,Ø'D ÐCAR€by€allowing€in€the€final€CAR€any€affected€source€subject€to€aÏreferencing€subpart€to€use€the€CAR€as€a€compliance€option€Ô‡*XlÿXXLXlÿÔwithÐ Ü, ÐÔ_Ôñ ñò òoneó óò òñ ñtwoñ ñó óñ ñÔ_Ô€Ô_Ôexceptionñ ñò òñ ñsñ ñó óñ ñÔ_Ô€described€below.€€This€means€that€a€facility€mayÏchoose€to€opt€in,€for€example,€one€subpart€Kb€tank€or€allÏequipment€at€the€facility€that€is€subject€to€a€referencingÏsubpart.€€For€both€regulator€and€industry€personnel,€thisÏeliminates€the€assignment€procedures€that€determine€whatÏequipment€constitutes€a€SCU.€€With€this€change,€it€is€notÏnecessary€to€keep€track€of€new€regulated€sources€and€whether€theyÏare€part€of€a€SCU€or€not.Ìà  àThere€Ô_Ôñ ñò òisó óò òñ ñareñ ñó óñ ñÔ_Ô€Ô_Ôñ ñò òoneó óò òñ ñtwoñ ñó óñ ñÔ_Ô€Ô_Ôsituationñ ñò òñ ñsñ ñó óñ ñÔ_Ô€where€the€regulated€source€in€theÏCAR€does€not€match€the€affected€source€of€the€referencingÏÔ_Ôsubpart.ñ ñò òÔ_Ô€€This€is€the€case€of€40€CFR€part€61,€subpart€Ô_ÔV.ó óÔ_Ôñ ñ€Ô_Ô€Ô_Ôñ ñò òñ ñInÔ_Ô€one€situation,€Ô_Ôtñ ñó óò òTó óñ ñheÔ_Ô€affected€source€Ô_Ôforñ ñò òñ ñÔ_Ô€40€CFR€partÏÔ_Ô61,ñ ñó óñ ñÔ_Ô€subpart€V€is€an€individual€piece€of€equipment€like€a€pump€orÏa€valve.€€We€determined€that€allowing€owners€or€operators€to€optÏin€to€the€CAR€on€an€individual€piece€of€equipment€would€not€beÏworkable.€€Therefore,€owners€or€operators€must€opt€in€the€groupÏof€affected€equipment€at€a€process€unit.€€This€does€not€alter€theÏapplicability€of€subpart€V€to€a€facility;€it€only€affects€the€setÏof€equipment€that€can€comply€with€the€Ô_ÔCAR.ñ ñò òñ ñÔ_ÔÌà  àThe€second€situation€where€the€regulated€source€in€the€CARÏdoes€not€match€the€affected€source€of€the€referencing€subpart€isÏin€the€HON.€€Under€the€HON,€the€affected€source€is€the€total€ofÏall€applicable€emission€points€at€the€plant€site€that€are€subjectÏto€the€HON.€€Thus,€a€HON€facility€that€contains€more€than€oneÏCMPU,€would€consist€of€only€one€affected€source,€which€would€beÏthe€collection€of€all€subject€CMPUððs.€€However,€under€the€CAR€theÏregulated€source€is€collection€of€emission€points€within€eachÏCMPU€(as€proposed€under€the€original€concept€in€the€CAR€of€theÏSCU).€€Thus,€a€HON€facility€can€choose€to€opt€into€the€CAR€on€aÏCMPU€basis,€and€not€the€entire€collection€of€CMPUððs€that€compriseÏthe€HON€affected€Ô_Ôsource.ñ ñó óñ ñÔ_ÔÌÔ#†LXlÿXX*Xlÿê#Ôà  àAlthough€we€believe€that€in€most€cases€facilities€will€optÐ 0*€%@ Ðin€larger€groups€of€equipment€(e.g.,€most€or€all€subpartKbÏtanks),€the€States€and€owners€or€operators€have€the€opportunityÐ ˆ,Ø'D Ðto€work€together€to€determine€the€basis€on€which€facilities€canÏopt€in€their€equipment€that€will€provide€the€"best€fit"€for€bothÏregulators€and€industry.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€theÐ 4„ Ðproposal€preamble€discussion€at€63FR57757€and€57758€regardingÏthe€SCUððs€and€the€definition€of€regulated€source€carries€aÏmisleading€implication.€€The€commenter€(IV-G-01)€stated€that€theÏdiscussion€implies€that€if€one€SCU€within€a€plant€site€elects€toÏcomply€with€the€CAR,€then€all€new€and€existing€sources,Ïregardless€of€their€relation€to€the€SCU,€must€comply€with€the€CARÏif€they€are€part€of€the€same€plant€site€and€subject€to€one€of€theÏreferencing€subparts.€€The€commenter€(IV-G-01)€suggested€an€editÏto€clarify€this€issue.Ìà  àòòResponseóó:€€Because€of€the€change€in€the€applicabilityÐ ì< Ðprovisions,€the€clarification€suggested€by€the€commenter€is€noÏlonger€necessary.€€Ìà  àòòCommentóó:€€The€commenter€(VI-D-03)€asserted€thatÐ pÀ  Ðpolyethylene,€polypropylene,€and€polystyrene€units€should€beÏdefined€as€SCU's,€by€adding€40CFRpart60,€subpartDDD€to€theÏlist€of€rules€in€the€SCU€definition.€€The€commenter€argued€thatÏthis€would€clarify€the€pointers€in€subpartDDD€and€theÏrequirements€that€apply€to€these€units.€€The€commenter€statedÏthat€it€would€also€allow€stand„alone€polyethylene,€polypropylene,Ïand€polystyrene€units€to€take€advantage€of€the€CAR's€burdenÏreductions.€€The€commenter€pointed€out€that€additionally,€someÏfacilities€operate€a€number€of€stand„alone€polyethylene,Ïpolypropylene,€and€polystyrene€sites€at€sites€where€SCU's€areÏpresent.€€The€commenter€asserted€that€if€subpartDDD€units€wereÏincluded€in€the€SCU€definition,€facilities€with€these€units€couldÏuse€the€CAR€for€the€entire€site.€€The€commenter€stated€that€theÏfacility€would€not€have€to€maintain€compliance€systems€for€bothÏrules,€thereby€removing€an€impediment€to€using€the€CAR.€€WhileÏthis€would€expand€the€scope€of€the€CAR,€the€commenter€reasoned€itÏwould€allow€more€of€the€SOCMI€industry€to€take€advantage€of€theÏCAR.Ð ˆ,Ø'D Ðà  àòòResponseóó:€€Because€of€the€change€in€the€applicabilityÐ ° Ðprovisions€there€is€no€longer€a€need€to€define€the€SCU.€€AÏfacility€can€choose€to€opt€any€affected€source€or€facilityÏsubject€to€a€referencing€subpart€into€the€CAR€regardless€of€itsÏaffiliation€to€a€SCU.€€The€SCU€definition€has€been€deleted€in€theÏfinal€CAR.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€questioned€why€Ô_Ôñýñððñýññýñððñýñ65.1(i)(2)Ô_ÔÐ ¸   Ðrefers€to€subpartsVV,€III,€NNN,€and€RRR.€€The€commenter€statedÏthat€the€purpose€of€Ô_Ôñýñððñýññýñððñýñ65.1(i)(2)Ô_Ô€is€to€identify€process€unitsÏwhere€equipment€assignment€procedures€are€unnecessary,€becauseÏthe€referencing€rule€has€already€defined€the€SCU.€€The€commenterÏstated€that€the€definitions€of€process€units€contained€inÏsubpartsVV,€III,€NNN,€and€RRR€are€not€specific€enough€toÏidentify€all€of€the€equipment€that€is€part€of€the€process€unit.€ÏThe€commenter€(VI-D-02)€requested€a€revision€of€Ô_Ôñýñððñýññýñððñýñ65.1(i)Ô_Ô€toÏrequire€that€the€equipment€included€in€an€SCU€is€the€equipmentÏdefined€as€part€of€the€process€unit€in€the€referencing€subparts,Ïas€applicable,€as€well€as€any€other€equipment€that€is€part€of€theÏSCU€as€determined€by€the€assignment€rules€in€Ô_Ôñýñððñýññýñððñýñ65.1(j)Ô_Ô€throughÏ(m).Ìà  àAnother€commenter€(IV-G-01)€stated€that€the€proposalÏpreamble€(63FR57756)€contains€a€discussion€about€assignmentÏprocedures€for€assigning€transfer€operations€to€process€units.€ÏThe€commenter€(IV-G-01)€advised€that€this€discussion€should€notÏrefer€to€thermoplastic€product€process€units€(TPPUs)€andÏpetroleum€refinery€process€units€(PRPUs)€because€subpartsU€andÏJJJ€do€not€regulate€transfer€operations.Ìà  àòòResponseóó:€€Because€of€the€changes€in€the€applicabilityÐ T$¤6 Ðprovisions,€the€assignment€procedures€have€been€deleted.€ÏTherefore,€the€suggestions€made€by€the€commenters€no€longer€needÏto€be€addressed.€€ÌÔ  Ô2.3.2€òòPointer€Paragraphs€in€Referencing€SubpartsÔ ÝÔÐ )T$> Ðóóà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€thatÐ 0*€%@ ÐÔ_ÔÔ‡*XlÿXXLXlÿÔððÔ#†LXlÿXX*Xlÿ­#Ôñýñððñýññýñððñýñ60.110a(e)Ô_Ô€and€60.110b(g)€should€not€state€that€Ô_Ôñýñððñýññýñððñýñ60.16Ô_Ô€ofÐ \+¬&B ÐsubpartA€still€applies.€€The€commenter€pointed€out€that€Ô_Ôñýñððñýññýñððñýñ60.16Ô_ÔÐ ˆ,Ø'D Ðof€subpartA€is€a€list€of€prioritized€major€source€categories€andÏis€not€necessary€for€sources€complying€with€the€CAR.Ìà  àòòResponseóó:€€We€have€left€the€reference€to€Ô_Ôñýñððñýññýñððñýñ60.16Ô_Ô€of€40CFRÐ X Ðpart60,€subpartA,€in€the€list€of€provisions€that€still€apply€toÏsources€complying€with€the€CAR.€€Although€it€is€just€the€list€ofÏsource€categories,€we€consider€it€important€to€provide€a€completeÏlist€of€applicability€provisions€that€have€not€been€incorporatedÏinto€the€CAR,€but€that€still€apply€to€sources€complying€with€theÏCAR.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€advised€that€table4€inÐ <Œ  Ð40CFRpart63,€subpartH€is€duplicative€to€table1A€being€addedÏto€40CFR€part63,€subpartG.€€The€commenter€also€noted€thatÏtable1A€of€subpartG€is€missing€a€reference€to€63.5(f)(1)€thatÏis€in€table4€of€subpartH.Ìà  àòòResponseóó:€€Table€1A€and€table4€both€list€the€40CFR€part63Ð h Ðgeneral€provisions€(subpartA)€requirements€that€apply€to€ownersÏor€operators€choosing€to€comply€with€the€CAR.€€Both€tables€areÏnecessary,€one€for€subpartG€of€the€HON€(which€applies€to€processÏvents,€storage€vessels,€and€transfer€operations)€and€one€forÏsubpartH€of€the€HON€(which€applies€to€equipment€leaks).€€We€haveÏadded€the€missing€reference€to€Ô_Ôñýñððñýññýñððñýñ63.5(f)(1)Ô_Ô€to€table1A€ofÏsubpartG.€€Also,€there€are€some€additional€general€provisionsÏthat€apply€to€sources€referenced€to€the€CAR€from€40€CFR€part63,ÏsubpartG€that€were€inadvertently€left€off€of€table1A€ofÏsubpartG€in€the€proposed€rule.€€These€were€identified€in€table1Ïof€subpartA€of€part65€but€were€not€included€in€the€subpartGÏtable.€€These€provisions€have€been€added€in€the€final€CAR.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€indicated€that€theÐ T$¤6 Ðproposed€Ô_Ôððñýñððñýññýñððñýñ60.110a(c)Ô_Ô€and€60.110b(e)€pointer€paragraph€wordingÏsuggests€that€all€subject€storage€vessels€in€all€SCU's€at€a€siteÏmust€opt€into€the€CAR€together,€rather€than€all€subject€storageÏvessels€within€an€individual€SCU€opting€in€together.€€TheÏcommenter€(VI-D-03)€suggested€the€following€language€as€a€change:€Ï"...for€€storage€vessels€that...and€that€is€part€of€òòan€individualóóÐ \+¬&B ÐSCU."Ð ˆ,Ø'D Ðà  àThe€commenter€noted€that€Ô_Ôððñýñððñýññýñððñýñ60.110a(f)Ô_Ô€and€60.110b(h)€makeÏclear€that€all€subject€storage€vessels€within€an€SCU€must€optÏinto€the€CAR€together,€so€leaving€the€word€"all"€out€of€theseÏparagraphs€does€not€change€the€requirement,€but€does€clarify€thatÏall€subpartKa€and€Kb€storage€vessels€in€all€SCU's€at€a€site€needÏnot€opt€into€the€CAR€at€once.Ìà  àòòResponseóó:€€Because€of€the€changes€in€applicability,€theÐ ¸   Ðpointer€paragraphs€in€subpartsKa€and€Kb€have€been€revised€to€notÏinclude€the€reference€to€SCU.€€We€believe€that€thisÏsimplification€has€taken€care€of€the€clarification€suggested€byÏthe€commenter.Ìà  àòòCommentóó:€€One€commenter€(VI-D-03)€noted€that€for€subpartDDDÐ ”ä  Ðprocess€vents€opting€into€the€CAR,€the€proposed€language€atÏÔ_Ôñýñððñýññýñððñýñ60.560(m)Ô_Ô€requires€the€vents€to€comply€with€the€CAR€subpartD.€ÏThe€commenter€pointed€out€that€the€total€resource€effectivenessÏ(TRE)€approach€in€the€CAR€subpartD,€however,€is€not€the€approachÏused€under€subpartDDD€to€define€covered€vents.€€Therefore,€theÏcommenter€concluded€only€subpartG€of€the€CAR€is€appropriate€forÏsubpartDDD€process€vent€provisions.€€The€commenter€(VI-D-03)Ïproposed€changes€to€the€language€of€Ô_Ôñýñððñýññýñððñýñ60.560(m)Ô_Ô€to€address€thisÏproblem.€€The€commenter€(VI-D-03)€also€suggested€thatÏclarification€may€be€needed€in€all€referencing€subparts€thatÏsubpartDDD€vents€are€not€subject€to€the€CAR€subpartD.Ìà  àòòResponseóó:€€For€owners€and€operators€choosing€to€comply€withÐ ¤ô. Ðthe€CAR,€Ô_Ôðð60.560(j)Ô_Ô€requires€subpartDDD€process€vents€to€complyÏwith€subpartG€of€the€CAR€(not€subpartD€of€the€CAR).€€TheÏproposed€Ô_Ôðð60.560(m)Ô_Ô€requires€other€process€vents€subject€to€otherÏreferencing€subparts€(40CFR€part60,€subpartsIII,€NNN,€RRR,€andÏthe€HON)€to€also€comply€with€the€CAR€if€the€process€vents€areÏlocated€in€the€same€SCU.€€However,€because€of€the€changes€toÏapplicability€in€the€final€CAR,€Ô_Ôðð60.560(m)Ô_Ô€has€been€deleted.Ìà  àòòCommentóó:€€One€commenter€(VI-D-02)€requested€that€the€ongoingÐ )T$> Ðrecordkeeping€requirements€of€Ô_Ôðð60.116Ô_Ô€be€duplicated€in€the€CARÏsubpartC,€so€the€owner/operator€of€a€storage€vessel€complyingÏwith€the€CAR€need€not€refer€back€to€part60,€subpartKb.€Ð ˆ,Ø'D Ðà  àòòResponseóó:€€We€have€not€included€the€recordkeepingÐ ° Ðrequirements€of€Ô_Ôðð60.116bÔ_Ô€in€the€final€CAR.€€This€record€isÏrequired€in€both€subpartKa€and€Kb€of€part60.€€It€is€anÏapplicability€record€of€the€material€stored€and€its€vaporÏpressure.€€Because€this€record€is€required€in€only€two€of€theÏrules€consolidated,€and€it€is€an€applicability€record,€we€decidedÏnot€to€include€it€in€the€CAR.€€In€general,€all€applicabilityÏrequirements€remain€in€the€referencing€subparts.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommends€changes€to€theÐ `  Ðproposed€text€of€40CFRpart60,€subpartsIII,€NNN,€and€RRR€toÏclarify€specifically€which€affected€facilities€may€elect€toÏcomply€with€the€CAR.€€The€commenter€(IV-G-01)€asserts€that€theÏproposed€text€does€not€clearly€indicate€which€affected€facilitiesÏmay€choose€to€comply€with€the€CAR,€but€rather€implies€by€sequenceÏof€the€wording€that€only€specific€exempt€facilities€may€choose€toÏcomply€with€the€CAR.€€Using€subpartIII€at€Ô_Ôðð60.610(d)Ô_Ô€as€anÏexample,€the€commenter€(IV-G-01)€stated€that,€as€it€was€written,Ïonly€sources€subject€to€paragraph(c)€could€use€the€CAR:€€"OwnersÏor€operators€of€process€vents€that€are€subject€to€this€subpartÏmay€choose€to€comply€with€the€provisions€of€40€CFR€part65,ÏsubpartD€to€satisfy€the€requirements€of€paragraph(c)€of€thisÏsection€and€Ô_Ôðððð60.612Ô_Ô€through€60.615€of€this€subpart,€exceptÏÔ_Ôðð60.615(a),Ô_Ô€as€provided€in€paragraphs(d)(1),€(d)(2)€and€(e)€ofÏthis€section."€€The€commenter€(IV-G-01)€proposed€language€forÏclarification,€with€an€example€from€subpartIII€as€follows:€Ï"...Owners€and€operators€of€process€vents€that€are€subject€to€Ï60.610(a),€(b)€and€(c)€€may€choose€to€comply€with€the€provisionsÏof€40€CFR€Part65,€subpartD€to€satisfy€the€requirements€ofÏ60.612€through€60.615€of€this€subpart,€except€60.615(a),€asÏprovided...".Ìà  àòòResponseóó:€€We€have€clarified€which€facilities€subject€toÐ Ø'(#< ÐsubpartsIII,€NNN,€or€RRR€may€choose€to€comply€with€the€CAR,€butÏhave€used€different€wording€than€what€was€suggested.€€The€CARÏcontains€the€exemptions€from€control€for€process€vents€with€lowÏflow,€low€concentrations,€and€TRE€values€greater€than4.0.€Ð ˆ,Ø'D ÐTherefore€it€is€appropriate€to€state€that€the€CAR€satisfies€theÏrequirements€for€process€vents€exempt€from€control.€€The€text€ofÏsubpartsIII,€NNN,€and€RRR€has€been€modified€to€clarify€this.€ÏFor€example,€the€following€text€from€subpartIII€at€Ô_Ôðð60.610(d)Ô_ÔÏwas€modified:€€"Owners€or€operators€of€process€vents€that€areÏsubject€to€this€subpart€may€choose€to€comply€with€the€provisionsÏof€40CFRpart65,€subpartD€to€satisfy€the€requirements€ofÏÔ_Ôðððð60.612Ô_Ô€through€60.615€of€this€subpart,€except€Ô_Ôðð60.615(a),Ô_Ô€asÏprovided€in€paragraphs(d)(1),€(d)(2)€and€(e)€of€this€section.€ÏThe€provisions€of€40CFRpart65€also€satisfy€the€requirements€ofÏparagraph(c)€of€this€section.€€Other€provisions..."ÌÔ  ÔÌÔ& X Ô2.4à  àSTRUCTURE€AND€FORMATÔ 4(ÔÐ À Ðà  àÔ'XÀB(ÔòòCommentóó:€€One€commenter€(IV-G-01)€asserts€that€the€CAR€doesÐ ì< Ðnot€provide€a€single€set€of€provisions€by€which€sources€may€meetÏall€regulatory€requirements,€because€process€units€will€have€toÏcomply€with€the€CAR€and€with€certain€paragraphs€of€theÏreferencing€subparts.€€Two€commenters€(IV-G-01,€VI-D-01)€claimedÏthat€the€CAR€does€not€completely€simplify€the€set€of€regulationsÏbeing€consolidated€and€thereby€may€cause€more€instances€ofÏconfusion€and€noncompliance.€€As€an€example,€the€commenterÏ(IV-G-01)€pointed€out€that€each€of€the€referencing€subpartsÏrequire€the€owner€or€operator€to€follow€the€general€provisions€ofÏsubpartA€of€the€CAR€and€some€specific€general€provisionÏrequirements€from€40CFRparts60,€61,€or€63.€€Ìà  àAnother€commenter€(VI-D-01)€noted€that€the€attempt€toÏprovide€a€modular,€stand„alone€applicability€section€for€the€CARÏhas€resulted€in€a€very€complex€structure€and€still€requires€theÏimplementing€agencies€and€affected€sources€to€rely€upon€theÏindividual€rules€that€are€consolidated€in€the€CAR.€€Ìà  àOne€commenter€(IV-G-01)€claimed€that€the€CAR€will€have€noÏbenefit€to€sources€that€have€any€group2€or€non„regulated€ventÏstreams,€or€are€subject€to€any€State€requirements.€€The€commenterÏ(IV-G-01)€reasoned€that€most€sources€eligible€to€use€the€CAR€willÏhave€streams€subject€to€rules,€or€portions€of€rules,€that€are€notÐ ˆ,Ø'D Ðbeing€consolidated.€€The€commenter€(IV-G-01)€maintained€that€theÏCAR€will€be€beneficial€only€to€sources€that€have€only€group1€orÏregulated€process€vents,€storage€tanks,€transfer€operations,Ïand/or€equipment€subject€to€federal€leak€standards.Ìà  àòòResponseóó:€€We€agree€with€the€commenter€that€there€areÐ ` ° Ðapplicable€provisions€in€the€referencing€subparts€and€referencingÏgeneral€provisions€that€require€familiarity€and€awareness€on€theÏpart€of€sources€complying€with€the€CAR.€€However,€theseÏprovisions€pertain€to€applicability€and€are€used€to€determineÏwhether€the€rule€applies€to€the€source€or€equipment€and€whetherÏcontrol€is€required.€€We€maintain€that€once€an€owner€or€operatorÏof€a€facility€complying€with€the€CAR€determines€the€applicabilityÏof€control,€then€the€owner€or€operator€will€rarely€have€to€referÏto€the€referencing€subparts€and€referencing€general€provisions.€ÏA€change€affecting€applicability€will€require€referring€to€theÏreferencing€subpart.Ìà  àWe€disagree€with€the€commenter's€assertion€that€the€CAR€willÏnot€benefit€facilities€that€have€group1€and€group2€storageÏvessels€and€transfer€racks.€€Group€1€storage€vessels€and€transferÏracks€are€emission€points€which€must€be€controlled.€€Group2Ïincludes€emission€points€where€control€is€not€required.€€InÏgeneral,€requirements€for€group€2€emission€points€include€recordsÏand€reports€that€confirm€the€group€status€of€the€emission€points.ÏOnce€the€group€2€reports€are€submitted,€there€are€few€additionalÏrequirements€in€the€referencing€subparts€with€which€a€facilityÏmust€comply,€and€the€CAR€requirements€are€not€relevant€to€group2Ïstorage€vessel€and€transfer€rack€emission€points.€€We€believeÏsignificant€benefits€can€accrue€to€sources€subject€to€multipleÏreferencing€subparts€with€group€1€points.€€Ìà  àòòCommentóó:€€Two€commenters€(IV-G-01,€VI-D-03)€recommended€thatÐ ¬&ü!: Ðwe€incorporate€tables€listing€the€provisions€of€the€referencingÏsubparts€that€are€still€applicable€when€using€the€CAR,€in€orderÏto€reduce€the€amount€of€regulatory€information€that€stakeholdersÏmust€review€to€determine€applicable€requirements.€€One€commenterÏ(IV-G-01)€asserted€that€such€a€table€would€not€only€clarify€theÐ ˆ,Ø'D Ðmore€subtle€requirements€of€the€CAR,€but€would€also€highlight€theÏremaining€requirements€from€the€referencing€subparts€thatÏotherwise€would€be€easy€to€overlook.€€Another€commenter€(VI-G-03)Ïsuggested€adding€a€"road€map"€table€which€gives€a€section„¼by-section€comparison€of€the€existing€requirements€in€theÏreferencing€subparts€and€the€alternative€CAR€provisions.Ìà  àòòResponseóó:€€As€suggested€by€the€commenters,€we€haveÐ ¸   Ðincorporated€a€table€that€lists€the€provisions€of€the€referencingÏsubparts€that€still€apply€to€sources€complying€with€the€CAR€as€anÏaid€to€the€user.€€We€have€also€developed€tables€that€give€aÏparagraph„by„paragraph€comparison€of€each€referencing€subpart€andÏits€corresponding€CAR€paragraph€in€the€proposed€rule.€€These€areÏreferred€to€as€"correlation€tables"€and€can€be€found€on€the€EPAÏTechnology€Transfer€Internet€siteÏ(www.epa.gov/ttn/uatw/car/car_rdpg.html).€Ìà  àòòCommentóó:€€Another€commenter€suggested€that€the€CAR€should€beÐ D” Ðrevised€as€a€"stand€alone"€part€so€that€sources€subject€to€theÏreferencing€subparts€could€simply€opt€to€comply€with€the€CAR,Ïthereby€eliminating€the€need€for€cross-referencing€theÏreferencing€subparts.€€Ìà  àòòResponseóó:€€We€have€made€every€effort€to€make€the€CAR€a€standÐ  p( Ðalone€part€that€sources€can€be€referred€to€with€very€littleÏlooking€back€at€the€original€referencing€subpart.€€It€has€beenÏnecessary€to€maintain€the€provisions€in€the€referencing€subpartsÏpertaining€to€applicability,€however.€€Significant€complexityÏwould€have€been€added€to€the€CAR€if€incorporation€of€theÏreferencing€subpart€applicability€had€been€attempted.€€Also,Ïthere€are€a€few€recordkeeping€or€reporting€provisions€of€someÏreferencing€subparts€that€needed€to€remain€applicable.€€These€areÏcases€where€we€have€determined€that€the€provisions€are€necessaryÏfor€implementing€and€enforcing€the€referencing€subpart.Ìà  àBy€adding€the€tables€of€referencing€subpart€provisions€thatÏstill€apply€to€sources€complying€with€the€CAR,€we€contend€that€Ïconfusion€has€been€eliminated€and€the€final€CAR€and€referencingÏsubparts€are€clear€and€easily€implemented.Ð ˆ,Ø'D Ðà  àòòCommentóó:€€One€commenter€(VI-D-03)€expressed€appreciation€forÐ ° Ðthe€CAR's€new€formatting€features.€€The€commenter€stated€that€theÏsignificant€reorganization€of€regulatory€requirements€by€end„userÏneed,€by€implementation€step,€by€specific€regulatory€topic,€andÏby€applicability€is€a€key€component€to€making€the€regulation€lessÏconfusing.€€The€commenter€stated€that€the€frequent€use€of€labelsÏto€facilitate€quick€recognition€of€the€organizational€structureÏprovides€clarity.€€The€commenter€(VI-D-03)€indicated€that€the€useÏof€direct€language€and€translation€of€appropriate€regulatoryÏrequirements€in€step„wise€procedures€will€help€reduce€theÏlearning€time€and€disputes€regarding€desired€regulatoryÏobjectives.Ìà  àòòResponseóó:€€We€appreciate€the€commenters€support€for€theÐ À Ðformatting€features€found€in€the€CAR.ÌÐ  h ÐØØÓ€ÓÑ€=ÑÌÌÌÌÌÌà@0 0 ìàÔ  Ô3.0€€SPECIFIC€COMMENTS€BY€SUBPARTÔ aCÔˆÌÌÌÓ€ÓÔ  Ô3.1à  àGENERAL€PROVISIONSÔ ¶CÔÐ ¸   Ðà  àòòCommentóó:€€One€commenter€(VI-D-02)€noted€that€Ô_Ôðð65.1(f)Ô_ÔÐ ä 4  Ðrequires€an€implementation€schedule€for€sources€opting€to€use€theÏCAR.€€The€commenter€stated€that€it€is€not€clear€whether€thisÏschedule€must€be€approved.€€The€commenter€(VI-D-02)€argues€thatÏthe€schedule€should€not€be€subject€to€review€and€approval,Ïbecause€the€CAR€is€voluntary€and€at€least€as€stringent€as€theÏreferencing€subparts.€€The€commenter€(VI-D-02)€requests€that€weÏclarify,€through€rewording€of€the€regulatory€text€and€theÏpreamble,€that€the€implementation€plan€is€submitted€for€planningÏpurposes€only€and€that€review€and€approval€by€the€permittingÏauthority€are€not€required.Ìà  àòòResponseóó:€€The€implementation€date€is€to€be€established€inÐ È! Ðcoordination€with€the€Administrator€or€delegated€authority.€€WeÏconsider€this€step€to€be€important€so€that€the€regulator€can€beÏaware€of€the€process€being€used€to€convert€the€facility€fromÏcomplying€with€the€referencing€subparts€to€complying€with€theÏCAR.€€It€provides€an€opportunity€to€the€regulator€to€ensure€thatÏthere€will€be€no€compliance€gaps,€and€the€benefits€of€CARÏimplementation€for€the€regulator€can€be€balanced€with€theÏbenefits€to€the€source€of€using€the€CAR.€€The€regulator€also€hasÏworkload€and€resource€constraints€to€consider€and€may€prefer€toÏmodify€permits€at€a€more€opportune€time€than€envisioned€by€theÏsource.€€In€addition,€the€regulator€must€have€some€comfort€levelÏwith€respect€to€implementation€and€enforcement€and€the€emissionÏsources€the€facility€wants€to€opt€in.€€We€have€clarified€in€theÏfinal€CAR€that€the€implementation€date€must€be€established€byÏâ âmutual€agreement€between€the€facility€and€regulator.Ð \+¬&? ÐÔ& X Ôâ âÔ  Ô3.1.1€€òòDefinitionsÔ KÔóóÐ ° Ðà  àÔ'X°øJÔòòCommentóó:€€One€commenter€(IV-G-01)€indicated€that€manyÐ Ü, Ðdefinitions€in€the€underlying€subparts€were€not€included€in€theÏCAR€and€that€this€forces€the€user€to€rely€on€the€definitionÏsections€in€the€referencing€subparts,€which€is€not€explicitlyÏallowed€in€the€CAR.€€The€commenter€(IV-G-01)€recommends€that€theÏCAR€clearly€state€that€definitions€in€the€referencing€subpartsÏshould€be€used€for€terms€that€are€used€in€the€CAR€and€that€areÏnot€defined€in€the€Act€or€in€subpartA€of€the€CAR.Ìà  àòòResponseóó:€€We€have€clarified€in€the€CAR€that€the€definitionsÐ <Œ  Ðin€the€referencing€subparts€should€be€used€for€terms€used€in€theÏCAR€and€not€defined€in€either€the€Act€or€subpartA€of€the€CAR.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€that€Ô_Ôðð65.2Ô_Ô€ofÐ À Ðthe€CAR€needs€to€define€the€term€"excess€emissions."€€TheÏcommenter€(IV-G-01)€pointed€out€that€"excess€emissions"€isÏexplained€in€Ô_Ôðð65.3(a)(4)Ô_Ô€of€the€CAR€but€is€not€defined€in€Ô_Ôðð65.2.Ô_Ô€ÏThe€commenter€(IV-G-01)€requested€that€Ô_Ôðð65.2Ô_Ô€should€be€consistentÏwith€Ô_Ôðð65.3(a)(4),Ô_Ô€if€this€section€actually€contains€theÏdefinition€of€excess€emissions.Ìà  àòòResponseóó:€€The€term€"excess€emissions"€is€defined€forÐ ôD& Ðpurposes€of€the€CAR€where€it€is€first€used,€in€Ô_Ôðð65.3(a)(4).Ô_Ô€€TheÏterm€is€used€in€the€following€locations€in€the€CAR:ÌÝ‚)ÿÝÝ  ÝÓ€ÓÝ‚)«QÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.6(b)(1)(i),Ô_Ô݃)«QØQÝŒÐxÈ,` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚)RÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.6(b)(4)(iv),Ô_Ô݃)RªRÝŒÐ@-` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚)bSÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.6(c),Ô_Ô݃)bS}S݌РX.` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚).TÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.162(a)(2)(iv),Ô_Ô€and݃).TITÝŒÐÐ /` (#` (# ÐŒÝ  ÝÝ‚)ÿÝÝ  ÝÝ‚)UÝà0  àð"ðà0` (#(#àÝ  ÝÔ_Ôðð65.163(c).Ô_Ô݃)U"U݌И!è0` (#` (# ÐŒÝ  ÝÓ€ÓÌÓ€€ÓWe€have€edited€each€of€these€sections€to€include€a€reference€toÏÔ_Ôðð65.3(a)(4),Ô_Ô€where€the€term€"excess€emissions"€is€defined.€€AÏdefinition€has€not€been€added€for€"excess€emissions"€in€Ô_Ôðð65.2Ô_ÔÏbecause€the€term€has€different€connotations€throughout€theÏparts60,€61,€and€63regulations.€€Since€the€CAR€affects€rules€inÏall€three€parts,€we€have€decided€not€to€put€a€definition€in€theÏdefinition€section€to€avoid€confusion.€€Instead€the€term€will€beÏclarified€when€it€is€used€in€the€CAR€by€cross€references€toÏÔ_Ôñýñððñýññýñððñýñ65.3(a)(4).Ô_ÔÐ $,t'B Ðà  àòòCommentóó:€€One€commenter€(VI-D-06)€requested€clarification€ofÐ ° Ðterms€that€contain€subjective€adjectives€either€in€theÏdefinitions€section€or€in€the€sections€where€the€terms€occur.€ÏTwo€commenters€(VI-D-01,€VI-D-06)€specifically€mentioned€theÏdefinitions€of€"excused€excursion"€and€"reasonable€intervals."€ÏAnother€commenter€(VI-G-03)€pointed€out€that€"excused€excursion"Ïis€not€defined.€Ìà  àòòResponseóó:€€It€is€inevitable€that€some€terms€will€be€used€inÐ ä 4 Ða€regulation€that€are€not€immediately€obvious€to€everyone.€€ForÏtechnical€terms€and€terms€where€confusion€is€possible,€we€provideÏdefinitions.€€For€many€other€terms,€we€rely€on€the€meaning€givenÏthe€terms€in€common€language.€€The€term€"reasonable€intervals"€isÏused€one€time€in€the€CAR€at€Ô_Ôñýñððñýññýñððñýñ65.3(d)(3).Ô_Ô€€The€language€used€inÏthis€paragraph€is€consistent€with€the€language€ofÏÔ_Ôñýñððñýññýñððñýñ65.100(k)(9)(iii).Ô_Ô€€We€consider€this€term€sufficiently€clear.€ÏThe€term€excused€excursions€has€been€clarified€in€the€sectionsÏwhere€it€is€used.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€suggested€that€theÐ œì" Ðdefinition€of€"repaired"€be€modified€to€require€monitoring€"asÏappropriate"€to€verify€repair€because€visual€leakers€may€notÏrequire€remonitoring.Ìà  àThe€commenter(IV-G„01)€also€concluded€that€the€phraseÏ"definition€of€repair"€found€in€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2)Ô_Ô€should€be€changedÏto€"definition€of€repaired€or€first€attempt€at€repair"€in€orderÏto€parallel€the€definition€of€"repaired"€in€Ô_Ôñýñððñýññýñððñýñ65.2Ô_Ô€of€subpartAÏand€because€monitoring€is€also€required€after€the€first€attemptÏat€repair.Ìà  àòòResponseóó:€€"Visual€leakers"€requirements€in€the€CARÐ T$¤6 Ðtypically€include€language€to€the€effect€of€"repaired€in€thisÏinstance€means€that€the€visual€indications€of€a€leak€have€beenÏeliminated."€€Therefore,€the€standard€definition€of€"repaired"€inÏÔ_Ôñýñððñýññýñððñýñ65.2Ô_Ô€would€not€apply,€and€adding€the€phrase€"as€appropriate"€toÏthe€definition€of€"repaired"€is€confusing€and€is€not€necessary.€ÏWe€maintain€that€it€is€not€appropriate€to€add€the€suggestedÏlanguage€to€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2).Ô_ÔÐ ˆ,Ø'D Ðà  àAlso,€in€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2),Ô_Ô€the€CAR€requires€follow„upÏmonitoring€after€a€leaking€valve€has€been€repaired.€€TheÏrequirement€is€equally€applicable€whether€"repair"€was€successfulÏon€the€first,€second,€third,€or€any€subsequent€attempt€at€repair.€ÏIf€the€required€"first€attempt€at€repair"€is€successful€(andÏproven€through€monitoring€to€be€"repaired"),€then€Ô_Ôñýñððñýññýñððñýñ65.106(d)(2)Ô_ÔÏrequires€a€follow„up€monitoring€within€3months.€Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€expressed€the€opinion€thatÐ ä 4 Ðthe€term€"high€throughput€transfer€rack"€should€be€defined€in€theÏCAR€subpartA€in€Ô_Ôñýñððñýññýñððñýñ65.2.Ô_Ô€€The€commenter€also€noted€thatÏÔ_Ôñýñððñýññýñððñýñ65.145(b)(1)(iii)Ô_Ô€has€a€reference€to€a€"non€low„throughputÏtransfer€rack"€and€recommended€that€the€term€"high€throughputÏtransfer€rack"€be€used€for€consistency.Ìà  àòòResponseóó:€€We€agree€that€using€the€term€"high€throughputÐ ì< Ðtransfer€rack"€would€be€beneficial.€€We€have€edited€the€CAR€toÏincorporate€the€term€where€appropriate€and€have€added€aÏdefinition€for€high€throughput€transfer€rack.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€reasoned€that€theÐ œì" Ðdefinition€of€"relief€device€or€valve"€found€in€the€CARÏsubpartA,€Ô_Ôñýñððñýññýñððñýñ65.2Ô_Ô€should€be€revised€to€include€relief€valves€thatÏallow€passage€of€nitrogen€to€prevent€vacuums.€€The€commenterÏsuggested€that€without€such€a€change,€the€CAR€definition€ofÏ"relief€device€or€valve"€would€be€inconsistent€with€the€changeÏthat€is€proposed€to€the€HON€definition€of€"pressure€reliefÏvalves"€as€discussed€at€63FR57762.Ìà  àòòResponseóó:€€The€definition€in€the€CAR€for€"pressure€reliefÐ ü!L2 Ðdevice€or€valve"€specifically€notes€that€"devices€activated...€byÏa€vacuum€are€not€pressure€relief€devices."€€A€"relief€device€orÏvalve"€under€the€CAR€means€a€"device€or€valve€used€only€toÏrelease€an€unplanned,€nonroutine€discharge,"€not€necessarilyÏrelieving€pressure.€€Pressure€relief€devices€are€a€subset€ofÏrelief€devices.€€There€are€specific€equipment€leak€requirementsÏfor€pressure€relief€devices€in€subpartF€of€the€CAR,€but€the€CARÏâ âdoes€not€have€requirements€for€relief€devices€in€general.Ð \+¬&B Ðà  àThe€change€noted€by€the€commenter€(and€discussed€at€63FRÏâ â57762)€is€regarding€the€definition€of€"open„ended€valve€or€line."€ÏThis€term€is€defined€differently€in€the€referencing€subparts,€butÏthe€intent€is€the€same:€€relief€devices,€the€broader€category€ofÏdevices€needed€for€safety€purposes€or€equipment€protection,€areÏnot€considered€open„ended€valves.€€The€CAR€language€thereforeÏspecifically€exempts€"relief€valves"€in€the€definition€ofÏ"open-ended€valve€or€line"€instead€of€exempting€"pressure€reliefÏvalves,"€as€was€done€in€the€HON€and€40CFR€part61,€subpartV.€Ï(No€change€has€been€proposed€to€the€HON€definition€of€"pressureÏrelief€device€or€valve"€or€"open„ended€valve€or€line.")Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€the€termsÐ ”ä  Ð"alternative€test€method"€and€"equivalent€test€method"€found€inÏthe€CAR€subpartA,€Ô_Ôñýñððñýññýñððñýñ65.2Ô_Ô€should€be€combined€into€one€term€andÏused€consistently,€because€they€seem€to€mean€the€same€thing.Ì€à  àAnother€commenter€(VI-D-02)€asserted€that€there€is€no€reasonÐ D” Ðfor€the€CAR€to€require€a€Method301€demonstration€for€alternateÏtest€methods,€if€the€Administrator€has€approved€an€alternate€as€aÏgeneral€matter€and€thereby€determined€the€alternate€to€beÏgenerally€applicable.€€The€commenter€(VI-D-02)€recommendedÏdeleting€this€condition€from€the€definition€of€"alternative€testÏmethods."Ìà  àòòResponseóó:€The€definitions€and€requirements€for€alternativeÐ xÈ, Ðtest€methods€and€for€equivalent€methods€are€not€the€same.€€TheÏtwo€terms€are€used€in€different€circumstances.€€EquivalentÏmethods€are€demonstrated€to€show€ð ða€consistent€and€quantitativelyÏknown€relationshipðð€to€the€required€test€method€for€the€specificÏcondition€under€which€that€test€method€would€be€run.€€AnÏalternative€method€provides€results€adequate€for€theÏAdministratorððs€determination€of€compliance.€Ìà  àWe€have€provided€more€detail€on€the€types€of€changes€thatÏconstitute€alternatives€to€test€methods€by€adding€definitions€andÏexamples€for€minor,€intermediate,€and€major€changes.€€TheseÏdefinitions€have€obviated€the€need€for€the€proposed€definition€ofÏð ðalternative€test€method.ðð€€As€indicated€in€these€definitions,Ð ˆ,Ø'D Ðonly€major€and€intermediate€changes€to€test€methods€must€undergoÏa€Method€301€demonstration.€€Further,€in€those€limited€situationsÏwhere€we€determine€that€a€Method€301€demonstration€isÏrepresentative€of€an€entire€source€category,€we€may€approve€aÏmajor€alternative€for€application€Ô_Ôtoñ ñò òñ ñÔ_Ô€Ô_Ôñ ñó óñ ñtheÔ_Ô€entire€source€category,Ïsuch€that€only€the€initial€application€of€the€change€wouldÏundergo€a€Method€301€demonstration.€€€Ìà  àThere€is€a€need€to€maintain€the€requirement€to€performÏMethod€301€for€changes€to€test€methods€that€have€not€beenÏapproved€by€the€Administrator.€€By€specifying€that€Method€301€beÏused,€we€ensure€that€we€will€receive€the€necessary€data€toÏevaluate€an€alternative€to€a€test€method.€€Also,€companiesÏsubmitting€alternative€test€methods€for€approval€will€know€whatÏinformation€is€expected.Ìà  àòòCommentóó:€€Two€commenters€(VI-G-03,€VI-G-04)€commented€onÐ h Ðconfusion€in€the€definitions€for€recapture,€recovery,€and€controlÏdevices.€€One€commenter€(VI-G„03)€supported€the€comments€ofÏVI-G-04€on€this€issue.€€One€commenter€(VI-G„04)€contended€thatÏthe€goals€of€"regulatory€reinvention"€mandate€that€we€use€the€CARÏas€an€opportunity€to€eliminate€the€artificial€distinction€betweenÏrecapture,€recovery,€and€control€devices€and€articulate€a€simple,Ïstraightforward€principle€applicable€to€any€device€that€controlsÏemissions.€€The€commenter€(VI„G„04)€stated€that,€as€proposed,€theÏCAR€definitions€are€overly€complex€and€penalize€the€use€ofÏ"recovery€devices"€to€achieve€emission€control.€€The€commenterÏ(VI-G-04)€further€stated€that€this€approach€not€only€results€inÏconfusion€in€permitting,€compliance,€and€enforcement€of€the€CAR,Ïbut€also€creates€a€regulatory€disincentive€for€the€recycling€ofÏrecovered€chemical€materials.€€The€commenter€(VI-G-04)€added€thatÏthese€results€are€contrary€to€the€goals€of€the€White€House€paperÏ"Reinventing€Environmental€Regulation"€which€emphasizes€deletingÏ"conflicting",€"overlapping",€"duplicative",€and€"confusing"Ïrequirements€in€favor€of€regulations€that€are€"understandable€toÏâ âthose€who€are€affected€by€them."Ð \+¬&B Ðà  àThe€commenter€(VI-G-04)€referenced€the€definitions€forÏâ â"control,€recovery,€and€recapture€devices"€as€confusing€andÏspecifically€called€attention€to€the€exclusion€of€recoveryÏdevices€as€control€devices€(in€the€control€device€definition)€andÏthe€exception€to€this€exclusion€in€Ô_Ôñýñððñýññýñððñýñ65.63(a)(2)(ii).Ô_Ô€€TheÏcommenter€(VI„G„04)€stated€that€this€exception€was€confusing,Ïdifficult€to€apply,€and€unjustified€from€an€environmentalÏstandpoint.€€The€commenter€(VI-G-04)€elaborated€on€why€theÏconditions€of€the€exception€are€unjustified€from€an€environmentalÏstandpoint.€€The€commenter€(VI-G-04)€also€contended€that€theÏproposed€CAR€creates€a€recycling€penalty€and€encourages€the€useÏof€recapture€devices€where€a€waste€is€formed.€€The€commenterÏ(VI-G„04)€stated€that€this€is€a€practice€that€should€beÏdiscouraged.€€The€commenter€(VI-G-04)€stated€that€if€we€areÏconcerned€that€a€recovery€device€may€actually€be€a€part€of€theÏprocess,€that€this€concern€should€be€addressed€by€a€simple,Ïstraightforward€statement€in€the€rule€(i.e.,€that€a€recoveryÏdevice€may€not€be€relied€upon€as€a€control€device€if€it€isÏnecessary€to€the€operation€of€the€emission€source).€€TheÏcommenters€(VI-G-03,€VI-G-04)€suggested€that€recapture€andÏrecovery€devices€should€be€considered€control€devices€to€theÏextent€that€they€are€relied€upon€by€the€owner€or€operator€toÏreduce€emissions.€€The€commenter€(VI-G-04)€stated€that€this€canÏbe€accomplished€by€shortening€the€definition€of€"control€device"Ïto€just€the€first€two€sentences€in€the€proposed€definition€andÏthe€exclusion€and€exceptions€in€Ô_Ôñýñððñýññýñððñýñ65.63(a)(2)Ô_Ô€should€be€deleted.Ìà  àòòResponseóó:€€The€recapture€device€concept€was€added€to€the€HONÐ (#x4 Ðin€recent€changes€to€that€rule.€€This€change€was€discussed€in€theÏHON€amendment€proposal€preamble€on€August€26,€1996€(61FR43704);Ïthe€change€was€promulgated€in€January17,€1997.€€In€the€proposalÏpreamble,€we€explain€that€this€change€fills€a€"regulatory€voidÏfor€non-combustion/non-recovery€devices€while€preserving€theÏapproach€used€in€this€rule€(and€earlier€rules)€to€differentiateÏbetween€process€and€control€in€this€industry."€€We€point€out€inÏthis€discussion,€the€NSPS€process€vent€provisions€(40CFR60,Ð ˆ,Ø'D ÐÔ_ÔsubpartsIII,€NNN,€and€RRR)€and€the€HON€provisions,€prior€to€thisÏchange,€treated€all€carbon€absorbers,€condensers,€adsorbers,€andÏscrubbers€as€"recovery€devices"€and€never€considered€theseÏdevices€to€be€used€in€situations€where€the€material€was€capturedÏand€disposed€of.€€Therefore,€the€recapture€provisions€were€addedÏto€the€HON€to€include€these€devices€as€a€compliance€option€inÏsituations€when€they€are€not€used€as€recovery€devices€(i.e.,€whenÏthey€are€used€as€recapture€devices).€€Ìà  àIn€the€final€CAR,€an€additional€change€was€made€to€provideÏclarity€and€reduce€the€complexity€of€these€provisions.€€The€CARÏhas€eliminated€the€term€"recapture€device"€and€now€relies€on€theÏterm€"control€device"€in€the€situation€where€this€term€has€beenÏused.€€Even€under€the€proposed€CAR€all€recapture€devices€wereÏcontrol€devices.€€We€have€used€this€fact€in€the€final€rule€toÏsimplify€the€language.€€Elements€of€the€recapture€deviceÏdefinition€have€been€incorporated€into€the€control€deviceÏdefinition.€€This€is€in€order€to€make€it€clear€that,€for€processÏvents,€control€devices€include€non„combustion/non„recoveryÏdevices€(devices€that€capture€material€that€is€not€used,€reused,Ïor€sold),€but€do€not€include€recovery€devices€(devices€thatÏrecover€material€that€is€used,€reused,€or€sold).Ìà  àThe€CAR€does€not€penalize€the€use€of€recovery€devices€as€theÏcommenter€suggests.€€This€change€has€not€changed€the€fact€thatÏrecovery€devices€are€allowed€to€be€used€to€comply€with€the€ruleÏby€raising€the€TRE€index€value.€€Under€the€NSPS,€HON,€and€CARÏprocess€vent€provisions,€equipment€is€considered€to€be€part€ofÏthe€process€if€the€recovered€materials€are€used,€reused,€or€soldÏfor€use€as€the€chemical€or€for€fuel.€€This€provision€is€stated€inÏthe€rule€by€specifying€that€all€applicability€determinations€takeÏplace€after€the€final€recovery€device.€€If€the€process€vent€meetsÏthe€criteria€for€TRE,€flow,€and€concentration€then€control€isÏrequired.€€In€the€process€vent€rules,€three€options€are€given€forÏcompliance:€€(1)a€flare€can€be€installed;€(2)a€control€deviceÏ(not€a€recovery€device)€meeting€98percent€emissions€reduction€orÏa€20ppmv€outlet€concentration€can€be€installed;€or€(3)aÐ ˆ,Ø'D Ðrecovery€device€can€be€installed€that€increases€the€TRE€toÏgreater€than€1.0€„„€this€option,€therefore€extends€the€processÏout€to€the€end€of€the€new€recovery€device.€€Although€the€ruleÏdoes€not€consider€a€recovery€device€to€be€a€control€device€forÏprocess€vents€(because€recovery€devices€are€part€of€the€process),Ïthis€third€option€encourages€the€use€of€recovery€devices€(orÏprocess€changes)€to€prevent€pollution.€€By€recovering€and€reusingÏchemicals,€emissions€can€be€reduced€such€that€the€TRE€isÏincreased€to€greater€than€1.0€and€a€control€device€does€not€needÏto€be€applied.€€The€recovery€device€does€not€need€to€meet€theÏ98percent€reduction€or€20ppmv€criteria,€it€only€needs€toÏincrease€the€TRE€to€greater€than1.0.€€(In€many€cases,€less€thanÏ98percent€reduction€can€increase€the€TRE€to€greater€than1.0.)€ÏBy€making€the€distinction€between€recovery€devices€and€non„¼combustion/non„recovery€devices€that€capture€material€not€used,Ïreused,€or€sold,€we€have€expanded€the€list€of€control€devicesÏthat€can€be€used€to€meet€option(2)(the€98percent€emissionsÏreduction€or€20ppmv€outlet€concentration)€to€include€non„¼combustion/non„recovery€devices€as€well€as€combustion€controlÏdevices.€Ìà  àRecovery€devices€are€part€of€the€process€and€are€thereforeÏnot€control€devices.€€Non„combustion/non„recovery€devices€thatÏcapture€material€that€is€not€used,€reused,€or€sold€are€not€partÏof€the€process€and€are€therefore€control€devices.€€TheÏdistinction€between€these€devices€is€necessary€to€maintain€theÏdistinction€between€process€and€control€equipment.€€TheÏdistinction€between€process€and€control€equipment€was€an€integralÏpart€of€the€data€analysis€used€to€support€the€process€vent€rules.€ÏWe€do€not€consider€this€an€arbitrary€distinction.Ìà  àIt€would€not€provide€adequate€guidance€to€simply€state€inÏthe€rule€that€a€recovery€device€can€not€be€relied€upon€as€aÏcontrol€device€if€it€is€necessary€to€the€operation€of€theÏemission€source,€as€suggested€by€the€commenter.€€There€would€beÏseveral€possible€interpretations€on€whether€a€recovery€device€isÏintegral€to€a€process,€for€instance:Ð ˆ,Ø'D ÐÓ€Óà0  àð"ðà0` (#(#àis€a€recovery€device€that€provides€an€increase€inÐ ° Ðproduction€efficiency€greater€than€10percent€integralÏto€a€process?€what€about€a€5percent€increase?;Ð ` (#` (# ÐÌà0  àð"ðà0` (#(#àis€a€recovery€device€that€decreases€the€use€of€rawÐ Ð  Ðmaterials€by€5percent€integral?€€what€about€aÏ2percent€decrease?€€Ð ` (#` (# ÐÓ€ÓÌÓ€€ÓThe€convention€that€the€last€recovery€device€is€considered€partÏof€a€process€has€been€used€since€40CFR60,subpartIII€wasÏproposed€in€October1983€and€in€three€other€rules€since.€€WeÏconsider€this€convention€fair,€understandable,€and€easilyÏapplied.€Ìà  àThe€exception€to€the€exclusion€of€recovery€devices€used€toÏmeet€the€98percent€control€requirement€specified€inÏñýñððñýññýñððñýñ65.63(a)(2)(ii)€was€added€to€the€HON€and€incorporated€into€theÏCAR€to€provide€for€a€specific€situation.€€Industry€brought€to€ourÏattention€the€situation€where€a€control€device€exists€after€theÏfinal€recovery€device€and€the€control€device€can€not€meet€theÏ98percent€control€requirement€and€can€not€meet€the€20ppmvÏoutlet€concentration€requirement€consistently.€€In€this€situationÏthe€facility€is€faced€with€the€decision€to€stop€reusing€theÏmaterial€recovered€in€the€recovery€device€or€add€an€additionalÏdevice.€€(By€no€longer€using€the€material€recovered€in€theÏrecovery€device,€the€recovery€device€can€be€considered€a€controlÏdevice€and€be€used€to€help€meet€the€98percent€controlÏrequirement.)€€Because€of€the€costs,€the€facility€would€be€moreÏlikely€to€stop€reusing€the€recovery€material,€thereby€creating€anÏadditional€solid€waste€stream€and€not€reducing€emissions€anyÏfurther.€€We€decided€to€avoid€the€creation€of€additional€solidÏwaste€streams,€especially€with€no€further€reduction€of€emissions,Ïand€to€allow€these€recovery€devices€to€be€considered€controlÏdevices.€€There€are€several€conditions€required€to€be€met€beforeÏthis€exception€can€be€used.€€These€conditions€are€necessary€toÏmake€sure€that€the€exception€is€only€available€for€these€specificÏsituations.Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€requested€a€deletion€ofÐ \+¬&@ Ðthe€sentence€within€the€definition€of€"malfunction"€that€reads,Ð ˆ,Ø'B Ð"Failures€that€are€caused€in€part€by€poor€maintenance€or€carelessÏoperation€are€not€malfunctions."€€The€commenter€noted€that€theÏterms€"poor€maintenance"€and€"careless€operation"€are€notÏdefined.€€The€commenter€believes€the€standard€for€identifying€aÏmalfunction€is€already€articulated€in€the€definition€by€the€termsÏ"sudden,€infrequent€and€not€reasonably€preventable,"€and€theÏcommenter€therefore€maintains€that€the€terms€"poor€maintenance"Ïand€"careless€operation"€are€ambiguous,€unenforceable,Ïunnecessary,€and€likely€to€lead€to€litigation.ÌÔ& ¸ Ôà  àòòResponseóó:€€The€language€in€the€CAR€definition€ofÐ <Œ  Ð"malfunction"€regarding€"poor€maintenance€or€careless€operation"Ïis€identical€to€the€language€in€the€definition€sections€of€theÏ40CFR€part60€and€part63€general€provisions.€€This€languageÏexists€in€the€definition€to€add€clarity€to€the€"sudden,Ïinfrequent€and€not€reasonably€preventable"€language.€€ItÏspecifies€that€any€event€that€was€caused€in€part€by€poorÏmaintenance,€for€instance,€is€not€a€malfunction.€€We€contend€thisÏclarification€is€necessary€and€that€its€meaning€is€clear.€€Ìà  àòòCommentóó:€€One€commenter€(VI-G-03)€suggested€Ô'¸ <:£Ôthat€theÐ È$ Ðdefinition€of€"permit€program"€should€include€State€permittingÏprograms€that€are€not€part€of€the€title€V€program€and€FederallyÏEnforceable€State€Operating€Permits€programs€for€minor€andÏsynthetic€minor€sources.Ìà  àòòResponseóó:€€In€the€context€of€the€CAR,€"permit€program"Ð ¤ô. Ðrefers€to€titleV€permits€established€pursuant€to€part70€or€71;Ïit€does€not€refer€to€other€types€of€permit€programs.€€ChangingÏthe€definition€as€the€commenter€has€suggested€would€only€addÏconfusion€where€this€term€is€used.€€Ìà  àòòCommentóó:€€A€commenter€(IV-G„01)€pointed€out€that€theÐ €%Ð 8 Ðdefinition€of€regulated€source€in€subpartA€of€the€CAR€does€notÏmatch€the€definition€in€the€proposal€preamble.Ìà  àòòResponseóó:€€There€is€no€definitions€section€in€the€proposalÐ )T$> Ðpreamble,€therefore,€we€assume€the€commenter€is€referring€to€theÏtext€in€sectionV.A,€Amendments€to€the€Referencing€Subparts:€ÏGeneral€Concepts€(63€FR57758).€€In€this€section,€"regulatedÐ ˆ,Ø'D Ðsource"€is€described.€€The€words€used€in€this€description€areÏdifferent€than€those€used€to€define€it.€€However,€the€meaning€isÏthe€same.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€indicated€that€"maximumÐ 4„ Ðtrue€vapor€pressure"€as€used€in€subpartC,€ñýñððñýññýñððñýñ65.41(b)€of€the€CARÏshould€be€defined.Ìà  àòòResponseóó:€€Maximum€true€vapor€pressure€is€a€term€necessaryÐ ¸   Ðfor€determining€the€applicability€of€control€for€storage€vesselÏrules.€€Therefore,€it€is€defined€with€the€applicabilityÏprovisions€in€the€referencing€subparts.€€The€definition€from€theÏapplicable€referencing€subpart€should€be€used€when€that€term€isÏencountered€in€the€CAR.Ìà  àòòCommentóó:€€One€commenter€(IV„G„01)€noted€that€the€termÐ À Ð"referencing€subpart"€does€not€include€HON€subpartF.Ìà  àòòResponseóó:€€The€commenter€is€correct.€€40€CFR€part63,Ð h ÐsubpartF€is€not€listed€as€a€referencing€subpart€in€theÏdefinition€of€referencing€subpart.€€SubpartF€is€not€aÏreferencing€subpart€because€there€is€no€reference€to€the€CAR€fromÏsubpartF.€€The€references€from€the€HON€to€the€CAR€are€in€40CFRÏpart63,€subpartG€for€storage€vessels,€process€vents,€andÏtransfer€racks,€and€in€40CFR€part63,€subpartH€for€equipmentÏleaks.Ìà  àòòCommentóó:€€Two€commenters€(IV-G-01,€VI„D„03)€pointed€outÐ xÈ, Ðthat,€in€subpartA€of€the€CAR,€the€definition€of€a€closed€loopÏsystem€contradicts€the€definition€of€a€closed€vent€system.€€OneÏcommenter€(IV-G-01)€stated€that€the€definition€of€a€closed€ventÏsystem€intentionally€excludes€piping€going€back€to€the€processÏfrom€the€scope€of€a€closed€vent€system.€€The€commenters€(IV-G-01Ïand€VI-D-03)€recommended€that€"except€through€a€closed€ventÏsystem"€be€removed€from€the€definition€of€a€closed€loop€system.Ì€à  àòòResponseóó:€€We€agree€with€the€commenter€that€there€isÐ Ø'(#< Ðpotential€for€confusion€regarding€the€definitions€of€a€closedÏvent€system€and€a€closed€loop€system.€€Therefore,€we€have€revisedÏâ âthe€definition€of€a€closed€loop€system€in€subpartA€of€the€CAR€toÐ \+¬&B Ðstate€that€a€"closed€loop€system€means€an€enclosed€system€thatÏreturns€process€fluid€to€a€process."Ìâ âà  àòòCommentóó:€€One€commenter€(VI-D-03)€asserts€that€the€firstÐ X Ðsentence€of€the€CAR€control€device€definition€implies€that€aÏcombustion€device€fueled€from€a€fuel€gas€system€is€a€controlÏdevice.€€The€proposed€definition€is€inconsistent€with€theÏtreatment€of€fuel€gas€systems€by€the€CAR.€€The€commenterÏsuggested€a€revision€of€the€control€device€definition€to€clarifyÏthat€combustion€devices€that€only€burn€fuel€as€a€primary€fuel€areÏexcluded€from€the€definition,€as€follows:€€"Control€device€meansÏany€combustion€device€òòcombusting€a€regulated€material€as€aÐ h¸  Ðsecondary€fuel,óó€recovery€device,€recapture€device,€or€anyÐ ”ä  Ðcombination€of€these€devices€used€to€comply€with€this€part...."€Ï(Suggested€language€is€underlined.)€€The€commenter€(VI-D-03)Ïasserted€that€this€change€would€allow€simplification€of€theÏboiler€and€process€heater€language€in€the€CAR€subpartG,€becauseÏthe€exceptions€for€primary€fuel€could€be€eliminated.€€ForÏexample,€the€commenter€said€ñýñððñýññýñððñýñ65.149(b)(2)(ii)€could€be€deletedÏand€paragraph(c)(1)€of€the€same€section€could€be€greatlyÏsimplified.Ìà  àòòResponseóó:€€The€commenter€is€correct€when€pointing€out€thatÐ  p( Ðthe€first€sentence€of€the€CAR€control€device€definition€does€seemÏto€imply€that€a€fuel€gas€system€could€be€considered€a€controlÏdevice.€€However,€the€fourth€sentence€clearly€states€"A€fuel€gasÏsystem€is€not€a€control€device."€€We€consider€this€clarificationÏto€be€sufficient€to€avoid€the€confusion€suggested€by€theÏcommenter.€€Also,€the€change€suggested€by€the€commenter€would€notÏbe€appropriate€in€situations€where€the€regulated€stream€is€theÏprimary€fuel,€such€as€in€the€case€of€some€flares.ÌÔ  Ô3.1.2€€òòStartup,€Shutdown,€and€MalfunctionÔ ĹÔóóÐ ¬&ü!: Ðà  àòòCommentóó:€€Three€commenters€(IV-G-01,€VI-D-02,€VI-D-03)Ð Ø'(#< Ðpointed€out€that€the€requirement€in€ñýñððñýññýñððñýñ65.6(c)(2)€of€the€CAR€isÏinconsistent€with€the€preamble€of€the€CAR€which€states€thatÏprovisions€in€the€part63€general€provisions€regarding€immediateÏreporting€of€periods€of€startup,€shutdown,€and€malfunction€haveÐ ˆ,Ø'D Ðnot€been€included€in€the€CAR.€€One€commenter€(IV-G-01)€advisedÏthat€the€startup,€shutdown,€and€malfunction€immediate€reportingÏrequirement€in€ñýñððñýññýñððñýñ65.6(c)(2)€of€the€CAR€should€be€removed€becauseÏit€is€inconsistent€with€the€provisions€from€subpartG€of€the€HON.€ÏThe€commenter€noted€that€the€HON€requires€sources€to€report€suchÏactions€in€the€periodic€report€instead€of€an€immediate€report.€Ìà  àòòResponseóó:€€We€intended€to€be€consistent€with€HONÐ ¸   Ðrequirements€and€therefore€did€not€intend€to€require€immediateÏreporting€of€periods€of€startup,€shutdown,€and€malfunction€underÏthe€CAR.€€This€inadvertent€error€has€been€corrected€by€removingÏthis€requirement€from€ñýñððñýññýñððñýñ65.6(c).€€As€noted€in€the€proposalÏpreamble,€requiring€these€reports€with€the€periodic€reportsÏinstead€of€as€immediate€reports€not€only€sufficiently€ensuresÏcompliance€but€also€provides€for€report€consolidation.Ìà  àòòCommentóó:€€One€commenter€(IV-G-01)€recommended€that€we€removeÐ h Ðthe€criteria€under€ñýñððñýññýñððñýñ65.6(c)(1)(ii)€of€the€CAR,€which€require€thatÏthe€periodic€startup,€shutdown,€and€malfunction€reports€includeÏthe€number€of€startup,€shutdown,€and€malfunction€events€and€theÏtotal€duration€of€all€periods€of€startup,€shutdown,€andÏmalfunction€for€the€reporting€period.€€The€commenter€claimed€thatÏthis€section€only€requires€reporting€if€the€total€durationÏexceeds€either€of€the€durations€specified€in€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(A)Ïor€(c)(1)(ii)(B)€and€the€commenter€(IV-G-01)€objects€to€theÏcriteria€because€they€add€calculation€burdens€that€are€notÏrequired€by€the€referencing€subparts.Ìà  àThe€commenter€(IV-G-01)€suggested€that,€if€we€retain€theÏprovisions€in€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(A)€and€(c)(1)(ii)(B)€of€the€CAR,€weÏshould€clarify€specifically€what€startup,€shutdown,€andÏmalfunction€information€sources€must€include€in€their€periodicÏstartup,€shutdown,€and€malfunction€reports.€€The€commenterÏ(IV-G-01)€indicated€that€it€is€often€easier€to€report€allÏstartup,€shutdown,€and€malfunction€periods€that€caused€excessÏemissions€rather€than€determining€the€percentage€of€time€aÏâ âContinuous€Parameter€Monitoring€System€(CPMS)€is€not€operating€orÐ \+¬&B Ðis€malfunctioning,€or€the€percentage€of€time€in€which€startup,Ïshutdown,€and€malfunction€events€caused€excess€emissions.Ìâ âà  àRegarding€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(A),€the€commenter€(IV-G-01)Ïspecifically€requested€clarification€of€the€assumption€that€aÏseparate€downtime€percentage€should€be€calculated€for€eachÏindividual€CPMS€and€that€only€startup,€shutdown,€and€malfunctionÏevent€durations€need€to€be€reported€on€CPMS€for€which€the€periodÏof€inoperation€or€malfunction€is€equal€to€or€greater€thanÏ5percent.€€The€commenter€(IV-G-01)€also€requested€clarificationÏof€whether€to€include€or€exclude€periods€of€CPMS€inoperation€orÏmalfunction€when€the€actions€taken€by€an€owner€or€operator€areÏconsistent€with€the€procedures€specified€in€the€source's€startup,Ïshutdown,€and€malfunction€(SSM)€€plan.€€The€commenter€(IV-G-01)Ïalso€asked€that€we€clarify€which€periods€of€CPMS€inoperation€orÏmalfunction€should€be€included€in€the€startup,€shutdown,€andÏmalfunction€report€and€requested€that€only€the€periods€of€CPMSÏinoperation€or€malfunction€for€which€actions€are€inconsistentÏwith€the€SSM€plan€be€included.Ìà  àRegarding€ñýñððñýññýñððñýñ65.6(c)(1)(ii)(B)€of€the€CAR,€the€commenterÏ(IV-G-01)€requested€that€we€clarify€how€to€calculate€theÏpercentage€of€startup,€shutdown,€and€malfunction€time€duringÏwhich€excess€emissions€occur€because€of€inconsistency€in€theÏdefinition€of€"regulated€source."€€The€commenter€(IV-G-01)Ïrequests€that€the€percentage€should€be€calculated€on€an€emissionÏpoint€by€emission€point€basis€considering€the€operating€time€ofÏeach€emission€point.€€The€commenter€(IV-G-01)€assumes€that€whenÏone€emission€point€exceeds€1percent€of€that€regulated€source'sÏoperating€time,€the€information€in€ñýñððñýññýñððñýñ65.6(c)(1)(ii)€of€the€CARÏneeds€to€be€reported€only€for€that€emission€point.€€The€commenterÏ(IV-G-01)€requested€clarification€regarding€which€periods€ofÏstartup,€shutdown,€and€malfunction€should€be€included€in€theÏpercentage€calculation.€€The€commenter€(IV-G-01)€requested€thatÏonly€the€periods€of€startup,€shutdown,€and€malfunction€for€whichÏâ âactions€are€inconsistent€with€the€SSM€plan€be€included€in€theÐ \+¬&B Ðpercentage€calculation€and€the€periodic€startup,€shutdown,€andÏmalfunction€report.Ìâ âà  àòòResponseóó:€€A€semi„annual€summary€report€of€the€occurrencesÐ X Ðand€durations€of€each€startup,€shutdown,€and€malfunction€duringÏwhich€excess€emissions€occur€is€required€by€the€CAR€generalÏprovisions.€€We€consider€the€semi„annual€summary€report€anÏimportant€addition€to€the€startup,€shutdown,€and€malfunctionÏprovisions,€because€it€would€highlight€when€startup,€shutdown,Ïand€malfunction€conditions€exist€for€a€significant€amount€ofÏtime,€and€it€would€indicate€conditions€that€happen€frequentlyÏduring€a€semi„annual€period.€€The€purpose€of€reporting€only€aboveÏcertain€thresholds€was€to€reduce€burden,€primarily€if€occurrencesÏare€rare€or€infrequent.Ìà  àNevertheless,€we€agree€with€the€commenter's€assertion€thatÏit€may€be€easier€to€report€all€startup,€shutdown,€and€malfunctionÏperiods€that€caused€excess€emissions,€rather€than€reporting€theÏpercentage€of€time€a€CPMS€is€malfunctioning€or€not€operating,€orÏthe€percentage€of€operating€time€in€which€regulated€sourceÏstartup,€shutdown,€and€malfunction€events€occurred€that€causedÏexcess€emissions.€€We€consider€the€determination€of€the€operatingÏtime€for€the€various€regulated€sources€to€be€burdensome€andÏdifficult€to€keep€track€of,€making€the€calculation€of€theÏpercentages€difficult.€€Therefore,€we€have€eliminated€theÏrequirement€to€calculate€the€percentage€of€time€an€SSM€eventÏoccurs€and€the€reporting€exemption€associated€with€it.€€TheÏfacilities€that€would€have€benefitted€from€this€exemption,€thoseÏwith€infrequent€SSM€events,€will€have€very€little€to€report€and,Ïtherefore,€will€only€see€a€small€increase€in€burden.€€The€finalÏrule€requires€the€owner€or€operator€to€report€all€startup,Ïshutdown,€and€malfunction€periods.€€Ìà  àWe€have€clarified€the€information€that€must€be€included€inÏthe€periodic€startup,€shutdown,€and€malfunction€report€asÏrequested€by€the€commenter.€€The€report€must€include€the€numberÏâ âof€discrete€startup,€shutdown,€and€malfunction€events€and€howÐ \+¬&B Ðlong€these€events€lasted€for€each€regulated€source€and€CPMSÏregardless€of€whether€the€SSM€plan€was€followed€or€not.€€Ìâ âà  àòòCommentóó:€€One€commenter€(IV-G„01)€noted€that€the€lastÐ X Ðsentence€of€the€reporting€discussion€in€the€proposal€preambleÏ(63FR€57767)€should€use€the€terms€"greater€than€or€equal€to"€inÏreference€to€total€duration€of€excess€emissions€and€CPMS€downtimeÏinstead€of€"less€than."Ìà  àòòResponseóó:€€The€commenter€is€correct€in€that€the€preambleÐ ä 4 Ðshould€have€read€"greater€than€or€equal€to"€in€the€sentenceÏreferenced€by€the€commenter.€€However,€the€par