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{{#Wiki_filter:1~ACCELERATEDII+RIBUTI0%DEMONSTTIDYSYSTEM4REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:8903220176DOC.DATE:89/03/14NOTARIZED:NODOCKETPTFACIL:50-315DonaldC.CookNuclearPowerPlant,Unit1,Xndiana&0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316AUTH.NAMEAUTHORAFFILIATIONALEXICH,M.P..IndianaMichiganPowerCo.(formerlyIndiana&MichiganEleRECXP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)
{{#Wiki_filter:1~ACCELERATED II+RIBUTI 0%DEMONSTTIDYSYSTEM4REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:8903220176 DOC.DATE:
89/03/14NOTARIZED:
NODOCKETPTFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,Xndiana&0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316AUTH.NAMEAUTHORAFFILIATION ALEXICH,M.P.
.IndianaMichiganPowerCo.(formerly Indiana&MichiganEleRECXP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)


==SUBJECT:==
==SUBJECT:==
ApplicationforamendstoLicensesDPR-58&DPR-74,allowingpostingofindividualstosubstituteforlockeddoors.DISTRIBUTIONCODE:A001DCOPXESRECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:GeneralDistributionNOTES:RECIPXENTIDCODE/NAMEPD3-1LASTANG,JINTERNAL:ARM/DAF/LFMBNRR/DEST/CEB8HNRR/DEST/MTB9HNRR/DEST/SICBNU~GSABSCTLE01EXTERNALLPDRNSXCCOPIESLTTRENCL10111011111111111111RECIPIENTIDCODE/NAMEPD3-1PDNRR/DEST/ADS7ENRR/DEST/ESB8DNRR/DEST/RSB8ENRR/DOEA/TSB11OGC/HDS1RES/DSIR/EXBNRCPDRCOPIESLTTRENCL2211111111101111DNOTE'IOAXZ-"RZDS"RZCZPIENIS.PIZASEHELPUS1OREDUCEWASTE.'GNI'ACT'IHEDOCUMEMI'GNIROLDESK,ROOMPl-37(EXT.20079)KOEIZMZNATEYOURNAMEFRYDISTIKBVTIGNLISTSFORDOCUMENISYOUDON'TNEED!DSDDSTOTALNUMBEROFCOPIESREQUIRED:LTTR19ENCL16 IndianaMichigan~PowerCompany~P.O.Box16631Columbus,OH43216AEP:NRC:1039DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74T/SCHANGEREQUESTONLOCKINGOFHIGHRADIATIONAREASU.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Attn:T.E.MurleyMarch14,1989
Application foramendstoLicensesDPR-58&DPR-74,allowing postingofindividuals tosubstitute forlockeddoors.DISTRIBUTION CODE:A001DCOPXESRECEIVED:LTR ENCLSIZE:TITLE:ORSubmittal:
GeneralDistribution NOTES:RECIPXENT IDCODE/NAME PD3-1LASTANG,JINTERNAL:
ARM/DAF/LFMB NRR/DEST/CEB 8HNRR/DEST/MTB 9HNRR/DEST/SICB NU~GSABSCTLE01EXTERNALLPDRNSXCCOPIESLTTRENCL10111011111111111111RECIPIENT IDCODE/NAME PD3-1PDNRR/DEST/ADS 7ENRR/DEST/ESB 8DNRR/DEST/RSB 8ENRR/DOEA/TSB 11OGC/HDS1RES/DSIR/EXB NRCPDRCOPIESLTTRENCL2211111111101111DNOTE'IOAXZ-"RZDS"RZCZPIENIS.
PIZASEHELPUS1OREDUCEWASTE.'GNI'ACT
'IHEDOCUMEMI'GNIROL DESK,ROOMPl-37(EXT.20079)KOEIZMZNATE YOURNAMEFRYDISTIKBVTIGN LISTSFORDOCUMENIS YOUDON'TNEED!DSDDSTOTALNUMBEROFCOPIESREQUIRED:
LTTR19ENCL16 IndianaMichigan~PowerCompany~P.O.Box16631Columbus, OH43216AEP:NRC:1039 DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74T/SCHANGEREQUESTONLOCKINGOFHIGHRADIATION AREASU.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyMarch14,1989


==DearDr.Murley:==
==DearDr.Murley:==
ThisletterconstitutesanapplicationforamendmenttotheTechnicalSpecifications(T/Ss)fortheDonaldC.CookNuclearPlantUnits1and2.Specifically,weareproposingtoallowthepostingofdesignatedindividualstosubstituteforthelockeddoorsforhighradiationareasrequiredbyT/S6.12.2~AdetaileddescriptionoftheproposedchangeandouranalysisconcerningsignificanthazardsconsiderationsarecontainedinAttachment1.TheproposedrevisedT/SpagesarecontainedinAttachment2.Webelievethattheproposedchangewillnotresultin(1)asignificantchangeinthetypesofeffluentsorasignificantincreaseintheamountofanyeffluentthatmaybereleasedoffsite,or(2)asignificantincreaseinindividualorcumulativeoccupationalradiationexposure.TheseproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommitteeandwillbereviewedbytheNuclearSafetyandDesignReviewCommitteeattheirnextregularlyscheduledmeeting.Incompliancewiththerequirementsof10CFR50.91(b)(1),copiesofthisletteranditsattachmentshavebeentransmittedtoMr.R.C.CallenoftheMichiganPublicServiceCommissionandMr.G.BruchmannoftheMichiganDepartmentofPublicHealth.489'0322017685'0314PDRADOCK05'000325PDCgoo Dr.T.E.Murley-2-AEP:NRC:1039ThisdocumenthasbeenpreparedfollowingCorporateproceduresthatincorporateareasonablesetofcontrolstoensureitsaccuracyandcompletenesspriortosignaturebytheundersigned.Sincerely,MP.AlxichVicePresidentCEM/ehAttachmentscc:D.H.Williams,Jr.W.G.Smith,Jr.-BridgmanR.C.CallenG.BruchmannG.CharnoffNRCResidentInspector-BridgmanA.B.Davis-RegionIII  
Thisletterconstitutes anapplication foramendment totheTechnical Specifications (T/Ss)fortheDonaldC.CookNuclearPlantUnits1and2.Specifically, weareproposing toallowthepostingofdesignated individuals tosubstitute forthelockeddoorsforhighradiation areasrequiredbyT/S6.12.2~Adetaileddescription oftheproposedchangeandouranalysisconcerning significant hazardsconsiderations arecontained inAttachment 1.TheproposedrevisedT/Spagesarecontained inAttachment 2.Webelievethattheproposedchangewillnotresultin(1)asignificant changeinthetypesofeffluents orasignificant increaseintheamountofanyeffluentthatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.
TheseproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommittee andwillbereviewedbytheNuclearSafetyandDesignReviewCommittee attheirnextregularly scheduled meeting.Incompliance withtherequirements of10CFR50.91(b)(1),
copiesofthisletteranditsattachments havebeentransmitted toMr.R.C.CallenoftheMichiganPublicServiceCommission andMr.G.Bruchmann oftheMichiganDepartment ofPublicHealth.489'03220176 85'0314PDRADOCK05'000325 PDCgoo Dr.T.E.Murley-2-AEP:NRC:1039 Thisdocumenthasbeenpreparedfollowing Corporate procedures thatincorporate areasonable setofcontrolstoensureitsaccuracyandcompleteness priortosignature bytheundersigned.
Sincerely, MP.AlxichVicePresident CEM/ehAttachments cc:D.H.Williams, Jr.W.G.Smith,Jr.-BridgmanR.C.CallenG.Bruchmann G.CharnoffNRCResidentInspector
-BridgmanA.B.Davis-RegionIII  


ATTACHMENT1TOAEP:NRC:1039REASONSAND10CFR50.92ANALYSISFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITNO.1ANDUNITNO.2TECHNICALSPECIFICATIONS 1
ATTACHMENT 1TOAEP:NRC:1039 REASONSAND10CFR50.92ANALYSISFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITNO.1ANDUNITNO.2TECHNICAL SPECIFICATIONS 1
Attachment1toAEP:NRC:1039Page1DESCRIPTIONOFCHANGETechnicalSpecification(T/S)6.12.2requiresthatlockeddoorsbeprovidedtopreventunauthorizedentryintohighradiationareasinwhichtheintensityofradiationisgreaterthan1000mrem/hr.Weareproposingtoallowthepostingofadesignatedindividualtoserveasasubstituteforalockeddoorinthoseinstancesinwhichprovidingalockeddoorisnotpossibleornotpracticalduetoareasizeorconfiguration.WehavenotedtheconcernsraisedinNRCInformationNotice88-79,"MisuseofFlashingLightsForHighRadiationAreaControls."Themajorityoftheexamplesofmisusecitedinthisinformationnoticeinvolvedusingtheflashinglights(1)whenconstructingalockableenclosurewasareasonablealternativeor(2)whenlockinganexistingenclosurewaspossible.Asnotedabove,weintendtousetheproposedalternativeofpostingadesignatedindividualonlywhenitisnotpossibleornotpracticaltoprovidelockeddoors.AsexplainedintheT/Ss,theintentofthelockeddoorsistopreventunauthorizedentryintothesubjectarea.Webelievethat'postingadesignatedindividualprovidesalevelofprotectionforpreventingunauthorizedentrythatisequivalenttoorbetterthantheprotectionprovidedbytheflashinglightsallowedbythecurrentWestinghousestandardT/SsandtheT/Ssofsomeothernuclearplants.Per10CFR50.92,aproposedamendmentwillnotinvolveasignificanthazardsconsiderationiftheproposedamendmentdoesnot:(1)involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated,(2)createthepossibilityofanewordifferentkindofaccidentEromanyaccidentpreviouslyanalyzedorevaluated,or(3)involveasignificantreductioninamarginofsafety.Criterion1Changingtheaccesscontrolrequirementsforhighradiationareasdoesnotimpactanyofthepreviouslyanalyzedaccidents.Therefore,webeli<":echatthischangewillnotinvolveasignificantincreas'ntheprobabilityorconsequencesofanaccidentpreviouslyvaluated.  
Attachment 1toAEP:NRC:1039 Page1DESCRIPTION OFCHANGETechnical Specification (T/S)6.12.2requiresthatlockeddoorsbeprovidedtopreventunauthorized entryintohighradiation areasinwhichtheintensity ofradiation isgreaterthan1000mrem/hr.Weareproposing toallowthepostingofadesignated individual toserveasasubstitute foralockeddoorinthoseinstances inwhichproviding alockeddoorisnotpossibleornotpractical duetoareasizeorconfiguration.
WehavenotedtheconcernsraisedinNRCInformation Notice88-79,"MisuseofFlashingLightsForHighRadiation AreaControls."
Themajorityoftheexamplesofmisusecitedinthisinformation noticeinvolvedusingtheflashinglights(1)whenconstructing alockableenclosure wasareasonable alternative or(2)whenlockinganexistingenclosure waspossible.
Asnotedabove,weintendtousetheproposedalternative ofpostingadesignated individual onlywhenitisnotpossibleornotpractical toprovidelockeddoors.Asexplained intheT/Ss,theintentofthelockeddoorsistopreventunauthorized entryintothesubjectarea.Webelievethat'postingadesignated individual providesalevelofprotection forpreventing unauthorized entrythatisequivalent toorbetterthantheprotection providedbytheflashinglightsallowedbythecurrentWestinghouse standardT/SsandtheT/Ssofsomeothernuclearplants.Per10CFR50.92,aproposedamendment willnotinvolveasignificant hazardsconsideration iftheproposedamendment doesnot:(1)involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated, (2)createthepossibility ofanewordifferent kindofaccidentEromanyaccidentpreviously analyzedorevaluated, or(3)involveasignificant reduction inamarginofsafety.Criterion 1Changingtheaccesscontrolrequirements forhighradiation areasdoesnotimpactanyofthepreviously analyzedaccidents.
Therefore, webeli<":echatthischangewillnotinvolveasignificant increas'n theprobability orconsequences ofanaccidentpreviously valuated.  


Attachment1toAEP:NRC:1039Page2Criterion2Theproposedchangedoesnotinvolveachangeinplant'configurationoroperationandwillnotplacetheplantinanunanalyzedcondition;therefore,webelievethechangewillnot.createthepossibilityofanewordifferentkindofaccidentfromanypreviouslyanalyzedorevaluated.Criterion3Webelievethatpostingadesignatedindividualisequivalenttoorbetterthanthealternative(flashinglights)allowedbytheWestinghousestandardT/SsandtheT/Ssofsomeothernuclearplants.Basedonthisandsincewebelievethatthedesignatedindividualswillprovideadequateprotectionagainstunauthorizedentry,webelievethechangewillnotinvolveasignificantreductioninamarginofsafety.TheCommissionhasprovidedguidanceconcerningthedeterminationofsignificanthazardsbyprovidingcertainexamples(48FR14780)ofamendmentsconsiderednot,likelytoinvolvesignificanthazardsconsiderations.Webelievetheproposedchangeislesslikelythanthesixthexampleintheaboveguidancetoinvolveasignificanthazardsconsideration.Specifically,webelievetheproposedchangewillnotresultinanincreaseintheprobabilityorconsequencesofapreviouslyanalyzedaccidentorreduceamarginofsafety,sincewebelievethatpostingadesignatedindividualwillprovideadequateprotectionagainstunauthorizedentryforthoseinstancesforwhichprovidingalockedenclosureisnotpossibleornotpractical.Therefore,webelievethischangedoesnotinvolveasignificanthazardsconsiderationasdefinedin10CFR50.92.}}
Attachment 1toAEP:NRC:1039 Page2Criterion 2Theproposedchangedoesnotinvolveachangeinplant'configuration oroperation andwillnotplacetheplantinanunanalyzed condition; therefore, webelievethechangewillnot.create thepossibility ofanewordifferent kindofaccidentfromanypreviously analyzedorevaluated.
Criterion 3Webelievethatpostingadesignated individual isequivalent toorbetterthanthealternative (flashing lights)allowedbytheWestinghouse standardT/SsandtheT/Ssofsomeothernuclearplants.Basedonthisandsincewebelievethatthedesignated individuals willprovideadequateprotection againstunauthorized entry,webelievethechangewillnotinvolveasignificant reduction inamarginofsafety.TheCommission hasprovidedguidanceconcerning thedetermination ofsignificant hazardsbyproviding certainexamples(48FR14780)ofamendments considered not,likelytoinvolvesignificant hazardsconsiderations.
Webelievetheproposedchangeislesslikelythanthesixthexampleintheaboveguidancetoinvolveasignificant hazardsconsideration.
Specifically, webelievetheproposedchangewillnotresultinanincreaseintheprobability orconsequences ofapreviously analyzedaccidentorreduceamarginofsafety,sincewebelievethatpostingadesignated individual willprovideadequateprotection againstunauthorized entryforthoseinstances forwhichproviding alockedenclosure isnotpossibleornotpractical.
Therefore, webelievethischangedoesnotinvolveasignificant hazardsconsideration asdefinedin10CFR50.92.}}

Revision as of 06:27, 29 June 2018

Application for Amends to Licenses DPR-58 & DPR-74,allowing Posting of Designated Individuals to Substitute for Locked Doors for High Radiation Areas Required by Tech Spec 6.12.2. Justification & Analysis Encl
ML17334B300
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 03/14/1989
From: ALEXICH M P
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: MURLEY T E
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17334B301 List:
References
AEP:NRC:1039, NUDOCS 8903220176
Download: ML17334B300 (9)


Text

1~ACCELERATED II+RIBUTI 0%DEMONSTTIDYSYSTEM4REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:8903220176 DOC.DATE:

89/03/14NOTARIZED:

NODOCKETPTFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,Xndiana&0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316AUTH.NAMEAUTHORAFFILIATION ALEXICH,M.P.

.IndianaMichiganPowerCo.(formerly Indiana&MichiganEleRECXP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

Application foramendstoLicensesDPR-58&DPR-74,allowing postingofindividuals tosubstitute forlockeddoors.DISTRIBUTION CODE:A001DCOPXESRECEIVED:LTR ENCLSIZE:TITLE:ORSubmittal:

GeneralDistribution NOTES:RECIPXENT IDCODE/NAME PD3-1LASTANG,JINTERNAL:

ARM/DAF/LFMB NRR/DEST/CEB 8HNRR/DEST/MTB 9HNRR/DEST/SICB NU~GSABSCTLE01EXTERNALLPDRNSXCCOPIESLTTRENCL10111011111111111111RECIPIENT IDCODE/NAME PD3-1PDNRR/DEST/ADS 7ENRR/DEST/ESB 8DNRR/DEST/RSB 8ENRR/DOEA/TSB 11OGC/HDS1RES/DSIR/EXB NRCPDRCOPIESLTTRENCL2211111111101111DNOTE'IOAXZ-"RZDS"RZCZPIENIS.

PIZASEHELPUS1OREDUCEWASTE.'GNI'ACT

'IHEDOCUMEMI'GNIROL DESK,ROOMPl-37(EXT.20079)KOEIZMZNATE YOURNAMEFRYDISTIKBVTIGN LISTSFORDOCUMENIS YOUDON'TNEED!DSDDSTOTALNUMBEROFCOPIESREQUIRED:

LTTR19ENCL16 IndianaMichigan~PowerCompany~P.O.Box16631Columbus, OH43216AEP:NRC:1039 DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74T/SCHANGEREQUESTONLOCKINGOFHIGHRADIATION AREASU.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyMarch14,1989

DearDr.Murley:

Thisletterconstitutes anapplication foramendment totheTechnical Specifications (T/Ss)fortheDonaldC.CookNuclearPlantUnits1and2.Specifically, weareproposing toallowthepostingofdesignated individuals tosubstitute forthelockeddoorsforhighradiation areasrequiredbyT/S6.12.2~Adetaileddescription oftheproposedchangeandouranalysisconcerning significant hazardsconsiderations arecontained inAttachment 1.TheproposedrevisedT/Spagesarecontained inAttachment 2.Webelievethattheproposedchangewillnotresultin(1)asignificant changeinthetypesofeffluents orasignificant increaseintheamountofanyeffluentthatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.

TheseproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommittee andwillbereviewedbytheNuclearSafetyandDesignReviewCommittee attheirnextregularly scheduled meeting.Incompliance withtherequirements of10CFR50.91(b)(1),

copiesofthisletteranditsattachments havebeentransmitted toMr.R.C.CallenoftheMichiganPublicServiceCommission andMr.G.Bruchmann oftheMichiganDepartment ofPublicHealth.489'03220176 85'0314PDRADOCK05'000325 PDCgoo Dr.T.E.Murley-2-AEP:NRC:1039 Thisdocumenthasbeenpreparedfollowing Corporate procedures thatincorporate areasonable setofcontrolstoensureitsaccuracyandcompleteness priortosignature bytheundersigned.

Sincerely, MP.AlxichVicePresident CEM/ehAttachments cc:D.H.Williams, Jr.W.G.Smith,Jr.-BridgmanR.C.CallenG.Bruchmann G.CharnoffNRCResidentInspector

-BridgmanA.B.Davis-RegionIII

ATTACHMENT 1TOAEP:NRC:1039 REASONSAND10CFR50.92ANALYSISFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITNO.1ANDUNITNO.2TECHNICAL SPECIFICATIONS 1

Attachment 1toAEP:NRC:1039 Page1DESCRIPTION OFCHANGETechnical Specification (T/S)6.12.2requiresthatlockeddoorsbeprovidedtopreventunauthorized entryintohighradiation areasinwhichtheintensity ofradiation isgreaterthan1000mrem/hr.Weareproposing toallowthepostingofadesignated individual toserveasasubstitute foralockeddoorinthoseinstances inwhichproviding alockeddoorisnotpossibleornotpractical duetoareasizeorconfiguration.

WehavenotedtheconcernsraisedinNRCInformation Notice88-79,"MisuseofFlashingLightsForHighRadiation AreaControls."

Themajorityoftheexamplesofmisusecitedinthisinformation noticeinvolvedusingtheflashinglights(1)whenconstructing alockableenclosure wasareasonable alternative or(2)whenlockinganexistingenclosure waspossible.

Asnotedabove,weintendtousetheproposedalternative ofpostingadesignated individual onlywhenitisnotpossibleornotpractical toprovidelockeddoors.Asexplained intheT/Ss,theintentofthelockeddoorsistopreventunauthorized entryintothesubjectarea.Webelievethat'postingadesignated individual providesalevelofprotection forpreventing unauthorized entrythatisequivalent toorbetterthantheprotection providedbytheflashinglightsallowedbythecurrentWestinghouse standardT/SsandtheT/Ssofsomeothernuclearplants.Per10CFR50.92,aproposedamendment willnotinvolveasignificant hazardsconsideration iftheproposedamendment doesnot:(1)involveasignificant increaseintheprobability orconsequences ofanaccidentpreviously evaluated, (2)createthepossibility ofanewordifferent kindofaccidentEromanyaccidentpreviously analyzedorevaluated, or(3)involveasignificant reduction inamarginofsafety.Criterion 1Changingtheaccesscontrolrequirements forhighradiation areasdoesnotimpactanyofthepreviously analyzedaccidents.

Therefore, webeli<":echatthischangewillnotinvolveasignificant increas'n theprobability orconsequences ofanaccidentpreviously valuated.

Attachment 1toAEP:NRC:1039 Page2Criterion 2Theproposedchangedoesnotinvolveachangeinplant'configuration oroperation andwillnotplacetheplantinanunanalyzed condition; therefore, webelievethechangewillnot.create thepossibility ofanewordifferent kindofaccidentfromanypreviously analyzedorevaluated.

Criterion 3Webelievethatpostingadesignated individual isequivalent toorbetterthanthealternative (flashing lights)allowedbytheWestinghouse standardT/SsandtheT/Ssofsomeothernuclearplants.Basedonthisandsincewebelievethatthedesignated individuals willprovideadequateprotection againstunauthorized entry,webelievethechangewillnotinvolveasignificant reduction inamarginofsafety.TheCommission hasprovidedguidanceconcerning thedetermination ofsignificant hazardsbyproviding certainexamples(48FR14780)ofamendments considered not,likelytoinvolvesignificant hazardsconsiderations.

Webelievetheproposedchangeislesslikelythanthesixthexampleintheaboveguidancetoinvolveasignificant hazardsconsideration.

Specifically, webelievetheproposedchangewillnotresultinanincreaseintheprobability orconsequences ofapreviously analyzedaccidentorreduceamarginofsafety,sincewebelievethatpostingadesignated individual willprovideadequateprotection againstunauthorized entryforthoseinstances forwhichproviding alockedenclosure isnotpossibleornotpractical.

Therefore, webelievethischangedoesnotinvolveasignificant hazardsconsideration asdefinedin10CFR50.92.