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    <ReturnTs>2026-04-13T12:03:42-07:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>476000670</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>INTERNATIONAL ASSOCIATION OF MACHINISTS &amp; AEROSPACE WORKERS</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>INTE</BusinessNameControlTxt>
      <PhoneNum>4024409311</PhoneNum>
      <USAddress>
        <AddressLine1Txt>801 W Montgomery St</AddressLine1Txt>
        <CityNm>Creston</CityNm>
        <StateAbbreviationCd>IA</StateAbbreviationCd>
        <ZIPCd>50801</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Andrew Lewandowski</PersonNm>
      <PersonTitleTxt>Secretary Treasurer</PersonTitleTxt>
      <PhoneNum>4024409311</PhoneNum>
      <SignatureDt>2026-04-07</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
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      <PrimaryExemptPurposeTxt>For the betterment of wages, hours &amp; working conditions.</PrimaryExemptPurposeTxt>
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        <PersonNm>Billy Anderson</PersonNm>
        <TitleTxt>Trustee(Former)</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1</AverageHrsPerWkDevotedToPosRt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Brooks Rushman</PersonNm>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Patrick A Frederick</PersonNm>
        <TitleTxt>President</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Erin Shriner</PersonNm>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Mike Nichols</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JoAnna Peters</PersonNm>
        <TitleTxt>Conductor Sentinel</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Andrew M Lewandowski</PersonNm>
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        <PersonNm>Ted Galvin</PersonNm>
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        <PersonNm>Michael Ferrell</PersonNm>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Nic Fulton</PersonNm>
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        <PersonNm>Andrew M Lewandowski</PersonNm>
        <USAddress>
          <AddressLine1Txt>801 W Montgomery St</AddressLine1Txt>
          <CityNm>Creston</CityNm>
          <StateAbbreviationCd>IA</StateAbbreviationCd>
          <ZIPCd>50801</ZIPCd>
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        <PhoneNum>4024409311</PhoneNum>
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      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
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      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>0</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>Form 990-EZ, Part I, Line 8, Other Revenue: Redeposit-Protested Checks: 276.66</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>Form 990-EZ, Part I, Line 16, Other Expenses: Other PCT: 7,293.50 Form 990-EZ, Part I, Line 16, Other Expenses: Voluntary Donations: 4,056.00 Form 990-EZ, Part I, Line 16, Other Expenses: Registration fees, AFL-CIO legislative conference : 160.00</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part II, Line 24</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990-EZ, Part II, Line 24, Other Assets: Other Assets and Union Apparel: Beginning of year: 4686, End of year: 4686</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part V, Line 34</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990-EZ, Part V, Line 34 Local By-laws, and Organization's constitution were updated during the reporting period. There were not any name or structural changes.</ExplanationTxt>
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