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    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0000836249</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>
      <investmentCompanyType>N-6</investmentCompanyType>
    </filerInfo>
    <seriesClass>
      <reportClass>
        <classInfo>
          <classId>C000027250</classId>
          <!--Field: Pseudo-Tag; ID: Class Name; Data: Survivorship VUL GuardSM-->
        </classInfo>
        <classInfo>
          <classId>C000027251</classId>
          <!--Field: Pseudo-Tag; ID: Class Name; Data: Strategic Variable Life(R) Plus-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Strategic Variable Life(R)-->
        </classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Large Case Variable Life(R) Plus-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: VUL GuardSM-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Variable Universal Life II-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Survivorship Variable Universal Life II-->
        </classInfo>
        <classInfo>
          <classId>C000027257</classId>
          <!--Field: Pseudo-Tag; ID: Class Name; Data: Variable Universal Life-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Survivorship Variable Universal Life-->
        </classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Variable Life Select-->
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Variable Life Plus-->
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Strategic Group Variable Universal Life(R)-->
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Variable Universal Life III-->
        </classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Strategic Group Variable Universal Life(R) II-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: MassMutual Electrum (SM)-->
        </classInfo>
        <classInfo>
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          <!--Field: Pseudo-Tag; ID: Class Name; Data: Apex VUL (R)-->
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    <generalInfo reportEndingPeriod="2024-12-31" isReportPeriodLt12="N"/>
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      <investmentCompFileNo>811-08075</investmentCompFileNo>
      <registrantCik>0000836249</registrantCik>
      <registrantLei>549300MHWYLBVPEBU023</registrantLei>
      <registrantstreet1>1295 State Street</registrantstreet1>
      <registrantcity>Springfield</registrantcity>
      <registrantzipCode>01111</registrantzipCode>
      <registrantstate>US-MA</registrantstate>
      <registrantcountry>US</registrantcountry>
      <registrantphoneNumber>413-788-8411</registrantphoneNumber>
      <websites>
        <website webpage="massmutual.com"/>
      </websites>
      <locationBooksRecords>
        <locationBooksRecord>
          <officeName>Yin Wang</officeName>
          <officeAddress1>1295 State Street</officeAddress1>
          <officeCity>Springfield</officeCity>
          <officeStateCountry officeState="US-MA" officeCountry="US"/>
          <officeRecordsZipCode>01111</officeRecordsZipCode>
          <officePhone>413-788-8411</officePhone>
          <booksRecordsDesc>General ledger, accounting records, confirmations and customer records.</booksRecordsDesc>
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      <isRegistrantLastFiling>N</isRegistrantLastFiling>
      <registrantFamilyInvComp isRegistrantFamilyInvComp="Y" familyInvCompFullName="MassMutual Family of VA/VL Registered Separate Accounts"/>
      <registrantClassificationType>N-6</registrantClassificationType>
      <isSecuritiesActRegistration>Y</isSecuritiesActRegistration>
      <chiefComplianceOfficers>
        <chiefComplianceOfficer>
          <ccoName>James Puhala</ccoName>
          <crdNumber>N/A</crdNumber>
          <ccoStreet1>1295 State Street</ccoStreet1>
          <ccoCity>Springfield</ccoCity>
          <ccoStateCountry ccoState="US-MA" ccoCountry="US"/>
          <ccoZipCode>01111</ccoZipCode>
          <ccoPhone>XXXXXX</ccoPhone>
          <isCcoChangedSinceLastFiling>N</isCcoChangedSinceLastFiling>
          <ccoEmployers>
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        </chiefComplianceOfficer>
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      <isRegistrantSubmittedMatter>N</isRegistrantSubmittedMatter>
      <isPreviousLegalProceeding>N</isPreviousLegalProceeding>
      <isPreviousProceedingTerminated>N</isPreviousProceedingTerminated>
      <isFinancialSupportDuringPeriod>N</isFinancialSupportDuringPeriod>
      <isExemptionFromAct>N</isExemptionFromAct>
      <principalUnderwriters>
        <principalUnderwriter>
          <principalUnderwriterName>MML Investors Services, LLC</principalUnderwriterName>
          <principalUnderwriterFileNumber>8-27250</principalUnderwriterFileNumber>
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          <principalUnderwriterLei>00000000000000000000</principalUnderwriterLei>
          <principalUnderWriterStateCountry principalUnderWriterState="US-MA" principalUnderWriterCountry="US"/>
          <isPrincipalUnderwriterAffiliatedWithRegistrant>Y</isPrincipalUnderwriterAffiliatedWithRegistrant>
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        <principalUnderwriter>
          <principalUnderwriterName>MML Distributors, LLC</principalUnderwriterName>
          <principalUnderwriterFileNumber>8-48203</principalUnderwriterFileNumber>
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          <principalUnderwriterLei>00000000000000000000</principalUnderwriterLei>
          <principalUnderWriterStateCountry principalUnderWriterState="US-MA" principalUnderWriterCountry="US"/>
          <isPrincipalUnderwriterAffiliatedWithRegistrant>Y</isPrincipalUnderwriterAffiliatedWithRegistrant>
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        <principalUnderwriter>
          <principalUnderwriterName>MML Strategic Distributors, LLC</principalUnderwriterName>
          <principalUnderwriterFileNumber>8-69322</principalUnderwriterFileNumber>
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          <principalUnderwriterLei>00000000000000000000</principalUnderwriterLei>
          <principalUnderWriterStateCountry principalUnderWriterState="US-MA" principalUnderWriterCountry="US"/>
          <isPrincipalUnderwriterAffiliatedWithRegistrant>Y</isPrincipalUnderwriterAffiliatedWithRegistrant>
        </principalUnderwriter>
      </principalUnderwriters>
      <isUnderwriterHiredOrTerminated>N</isUnderwriterHiredOrTerminated>
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        <publicAccountant>
          <publicAccountantName>KPMG LLP</publicAccountantName>
          <pcaobNumber>185</pcaobNumber>
          <publicAccountantLei>5493003PVCIGA21K0K42</publicAccountantLei>
          <publicAccountantStateCountry publicAccountantState="US-MA" publicAccountantCountry="US"/>
        </publicAccountant>
      </publicAccountants>
      <isPublicAccountantChanged>N</isPublicAccountantChanged>
      <isOpinionOffered>N</isOpinionOffered>
      <isMaterialChange>N</isMaterialChange>
      <isAccountingPrincipleChange>N</isAccountingPrincipleChange>
    </registrantInfo>
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          <depositorCrdNo>N/A</depositorCrdNo>
          <depositorLei>R6ZXK5P01NP6HXSY1S07</depositorLei>
          <depositorStateCountry depositorState="US-MA" depositorCountry="US"/>
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          <uitAdminStateCountry uitAdminState="US-MA" uitAdminCountry="US"/>
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          <isUitAdminSubAdmin>N</isUitAdminSubAdmin>
        </uitAdmin>
      </uitAdmins>
      <isUitAdminHiredTerminated>N</isUitAdminHiredTerminated>
      <registrantSeparateInsuranceAccount isRegistrantSeparateInsuranceAccount="Y" separateAccountSeriesId="S000009841"/>
      <numOfContracts>38613</numOfContracts>
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        <contractSecurity separateAccountSecurityName="Variable Universal Life" separateAccountContractId="C000027257" separateAccountTotalAsset="156048441.06" numContractsSold="0" grossPremiumReceived="3989859.80" grossPremiumReceivedSection1035="0.00" numContractsAffected="0" contractValueRedeemed="14794538.00" contractValueRedeemedSection1035="2449930" numContractsAffectedRedeemed="16"/>
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        <contractSecurity separateAccountSecurityName="Variable Life Select" separateAccountContractId="C000027259" separateAccountTotalAsset="121685298.87" numContractsSold="0" grossPremiumReceived="2233472.48" grossPremiumReceivedSection1035="0.00" numContractsAffected="0" contractValueRedeemed="10996773.00" contractValueRedeemedSection1035="1348724" numContractsAffectedRedeemed="6"/>
        <contractSecurity separateAccountSecurityName="Variable Life Plus" separateAccountContractId="C000027260" separateAccountTotalAsset="29568289.38" numContractsSold="0" grossPremiumReceived="852796.60" grossPremiumReceivedSection1035="0.00" numContractsAffected="0" contractValueRedeemed="2459289.00" contractValueRedeemedSection1035="0.00" numContractsAffectedRedeemed="0"/>
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      </contractSecurities>
      <isRule6C7Reliance>N</isRule6C7Reliance>
      <isRule11A2Reliance>N</isRule11A2Reliance>
      <isRule12D1Dash4Reliance>N</isRule12D1Dash4Reliance>
      <isRule12D1GReliance>N</isRule12D1GReliance>
    </unitInvestmentTrust>
    <signature registrantSignedName="Massachusetts Mutual Variable Life Separate Account I" signedDate="2025-03-14" signature="/s/ Yasmin Aligan" title="Head of Financial Close and External Reporting"/>
  </formData>
</edgarSubmission>
