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    <ReturnTs>2025-03-11T17:24:40-04:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>330489438</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>NATIONAL ASSOCIATION OF LETTER CARRIERS BRANCH 1439</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% Hector M Meneses III</InCareOfNm>
      <BusinessNameControlTxt>NATI</BusinessNameControlTxt>
      <ForeignPhoneNum>9092608095</ForeignPhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 3011</AddressLine1Txt>
        <CityNm>ONTARIO</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>917610902</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Hector M Meneses III</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <SignatureDt>2025-03-12</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
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      <GroupExemptionNum>0685</GroupExemptionNum>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>435 n Laurel ave</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="5">X</Organization501cInd>
      <TypeOfOrganizationAssocInd>X</TypeOfOrganizationAssocInd>
      <GrossReceiptsAmt>104308</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <MembershipDuesAmt>103984</MembershipDuesAmt>
      <InvestmentIncomeAmt>324</InvestmentIncomeAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <SpecialEventsNetIncomeLossAmt>0</SpecialEventsNetIncomeLossAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <TotalRevenueAmt>104308</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>7575</GrantsAndSimilarAmountsPaidAmt>
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      <PrintingPublicationsPostageAmt>2878</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>49479</OtherExpensesTotalAmt>
      <TotalExpensesAmt>129794</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-25486</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>155596</NetAssetsOrFundBalancesBOYAmt>
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      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>153061</BOYAmt>
        <EOYAmt>129428</EOYAmt>
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      <LandAndBuildingsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
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      <OtherAssetsTotalDetail>
        <BOYAmt>5320</BOYAmt>
        <EOYAmt>5755</EOYAmt>
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        <EOYAmt>135183</EOYAmt>
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      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>2785</BOYAmt>
        <EOYAmt>5073</EOYAmt>
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      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>155596</BOYAmt>
        <EOYAmt>130110</EOYAmt>
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      <PrimaryExemptPurposeTxt>REPRESENTING UNION MEMBERS</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>THE ORGANIZATION REPRESENTS 205 UNITED STATES POSTAL EMPLOYEES BY PROTECTINGWORKING CONDITIONS BENIFITS WAGES AND SAFTEY WHILE DEFENDING AGAINST MANAGEMENT ABUSES</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>ANNUAL FOOD DRIVE - PICK UP NON PARASHABLE GOODS EVERY 2ND SATURDAY IN MAY. ALL FOOD COLLECTED GOES DIRECTLY TO LOCAL FOOD BANK. THE UNION PROVIDES FOOD &amp; DRINK TO ALL VOLUNTEERS</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">ROBERET ORTIZ</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>12260</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">MARK LESCH</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>5860</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">CHERYL DURANT</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>7</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>20074</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">HAROLD KELSO</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>110</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">FRANCISCO CURIEL</PersonNm>
        <TitleTxt>STEWART</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>3795</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">CARLOS JAUREGUI</PersonNm>
        <TitleTxt>STEWART AND TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>3708</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">JESSICA I AGUILERA</PersonNm>
        <TitleTxt>STEWART</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>3082</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">JOSE LOPEZ</PersonNm>
        <TitleTxt>STEWART</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>5219</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">JOSE CEJA</PersonNm>
        <TitleTxt>STEWART</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>2653</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">ALLEN LIANG</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>110</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Keith W Mitchell</PersonNm>
        <TitleTxt>STEWART</TitleTxt>
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        <CompensationAmt>3819</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <BusinessName referenceDocumentName="CompensationExplanation">
          <BusinessNameLine1Txt>HECTOR M MENESES III</BusinessNameLine1Txt>
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        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2</AverageHrsPerWkDevotedToPosRt>
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        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentName="IRS990ScheduleC">false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd referenceDocumentName="IRS990ScheduleN BinaryAttachment">false</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
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        <PersonNm>Hector M Meneses III</PersonNm>
        <USAddress>
          <AddressLine1Txt>435 n Laurel ave</AddressLine1Txt>
          <CityNm>Upland</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>91786</ZIPCd>
        </USAddress>
        <PhoneNum>9512022177</PhoneNum>
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      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentName="IRS990ScheduleC">false</PoliticalCampaignActyInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 10</FormAndLineReferenceDesc>
        <ExplanationTxt>| Grants And Similar Amounts Paid:, Amount:| CSALC.ORG SAXSENMEIER SCHOLARSHIP FUND CONTRIBUTION OF $500, $500| CSALC MONTHLY MEETING DRAWING $50 X 12 MONTHS, $600| MONTHLY MEETING DOOR PRIZE $25 X 49 TIMES, $1225| CHRISTMAS MEETING GIFT CARD GIVEAWAY $100 X 50 CARDS FOR AMAZON, $5000| NEW MEMBER SIGNUP $50 X 5, $250|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Expenses:, Amount:| PER CAPITA TAX, $420| OFFICE &amp; ADMINISTRATION EXPENSE, $3662| BOOKS &amp; SUBSCRIPTIONS, $4151| OFFICE SUPPLIES, $2567| INSURANCE, $300| HOTEL EXPENSE, $9782| MILEAGE, $2578| PER DIEM, $7420| FLOWERS, $370| FOOD DRIVE, $1477| REFRESHMENTS, $5373| PAYROLL FEDERAL &amp; STATE TAXES, $4055| TELEPHONE &amp; INTERNET FOR 2 OFFICES RANCHO CUCAMONGA &amp; ONTARIO, $2760| AIR TRAVEL CAR RENTAL &amp; RIDE SHARE SERVICE, $4564|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, line 24</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, BOYAmount:, EOYAmount:| LAPTOP ASSET PURCHASE $435, $5320, $5755|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, line 26</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, BOYAmount:, EOYAmount:| PAYROLL LIABILITIES $4113.45 CA PIT SDI $79.12 FEDERAL TAXES 941 943 944 $881.12, $2785, $5073|</ExplanationTxt>
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