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    <ReturnTs>2026-01-30T21:37:40-05:00</ReturnTs>
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    <Filer>
      <EIN>950865912</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>INTERNATIONAL ASSOCIATION OF MACHINISTS &amp; AEROSPACE WORKERS</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>INTE</BusinessNameControlTxt>
      <ForeignPhoneNum>5054536608</ForeignPhoneNum>
      <USAddress>
        <AddressLine1Txt>5150 KEARNY MESA RD</AddressLine1Txt>
        <CityNm>SAN DIEGO</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>921112001</ZIPCd>
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    <BusinessOfficerGrp>
      <PersonNm>MANNUEL RIVERA</PersonNm>
      <PersonTitleTxt>SECRETARY TREASURER</PersonTitleTxt>
      <PhoneNum>6198846265</PhoneNum>
      <SignatureDt>2026-02-02</SignatureDt>
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    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
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      <WebsiteAddressTxt>NONE</WebsiteAddressTxt>
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      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <MembershipDuesAmt>25606</MembershipDuesAmt>
      <InvestmentIncomeAmt>22972</InvestmentIncomeAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <SpecialEventsNetIncomeLossAmt>0</SpecialEventsNetIncomeLossAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>23000</OtherRevenueTotalAmt>
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      <PrintingPublicationsPostageAmt>7182</PrintingPublicationsPostageAmt>
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      <TotalExpensesAmt>58643</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>12935</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>234096</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>-1077</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>245954</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>230189</BOYAmt>
        <EOYAmt>243123</EOYAmt>
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      <OtherAssetsTotalDetail>
        <BOYAmt>3907</BOYAmt>
        <EOYAmt>2831</EOYAmt>
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      <Form990TotalAssetsGrp>
        <BOYAmt>234096</BOYAmt>
        <EOYAmt>245954</EOYAmt>
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        <BOYAmt>234096</BOYAmt>
        <EOYAmt>245954</EOYAmt>
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      <PrimaryExemptPurposeTxt>For the betterment of wages hours &amp; working conditions</PrimaryExemptPurposeTxt>
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        <DescriptionProgramSrvcAccomTxt>For the betterment of wages hours &amp; working conditions</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
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      <TotalProgramServiceExpensesAmt>58643</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">BRIAN STEINRICHTER</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">JESUS E GARCIA</PersonNm>
        <TitleTxt>RECORDING SECRETARY</TitleTxt>
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        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">MANUEL RIVERA</PersonNm>
        <TitleTxt>SECRETARY TREASURER</TitleTxt>
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        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">RUBEN GONZALEZ</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">JOSE S MARTINEZ</PersonNm>
        <TitleTxt>CONDUCTOR SENTINEL</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">LUCAS VASQUEZ</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">KEITH L HARRELL</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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        <PersonNm referenceDocumentName="CompensationExplanation">JARRETT C PFOST</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <PersonNm>MANNY RIVERA</PersonNm>
        <USAddress>
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          <CityNm>SAN DIEGO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92111</ZIPCd>
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        <PhoneNum>6198846265</PhoneNum>
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      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
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      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentName="IRS990ScheduleC">false</PoliticalCampaignActyInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
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        <FormAndLineReferenceDesc>Doing Business As Names</FormAndLineReferenceDesc>
        <ExplanationTxt>IAMAW LOCAL LODGE 389</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Revenues:, Amount:| Form 990-EZ Part I Line 8 Other Revenue: San Diego Machnists BC Rent, $23000|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Expenses:, Amount:| Form 990-EZ Part I Line 16 Other Expenses: GL PCT &amp; Supplies, $3797| Form 990-EZ Part I Line 16 Other Expenses: Bonds Premiums &amp; Insurance, $105| Form 990-EZ Part I Line 16 Other Expenses: Voluntary Donations, $2015| Form 990-EZ Part I Line 16 Other Expenses: Social, $2017| Form 990-EZ Part I Line 16 Other Expenses: Loss on Investment, $3652| Form 990-EZ Part I Line 16 Other Expenses: Printing &amp; Publication, $647| Form 990-EZ Part I Line 16 Other Expenses: DL-947 Payroll Reimbursement, $31144| Form 990-EZ Part I Line 16 Other Expenses: Scholarship disbursement, $1500|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, Amount:| Form 990-EZ Part I Line 20 Net Assets: Change in Value of Office Equipment, $-1076| Form 990-EZ Part I Line 20 Fund Balances: Fractions of Cents Adjustment, $-1|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, line 24</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, BOYAmount:, EOYAmount:| Other assets, $3907, $2831|</ExplanationTxt>
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