<?xml version="1.0" encoding="utf-8"?>
<Return returnVersion="2023v5.0" xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-04-06T17:49:56-07:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>916000085</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>INTERNATIONAL ASSOCIATION OF SHEET METAL AIR RAIL &amp; TRANSPORTATION</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>0324TD</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>INTE</BusinessNameControlTxt>
      <PhoneNum>2069095667</PhoneNum>
      <USAddress>
        <AddressLine1Txt>14230 113th Ave NE</AddressLine1Txt>
        <CityNm>Kirkland</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>98034</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Benjamin Borm</PersonNm>
      <PersonTitleTxt>Treasurer</PersonTitleTxt>
      <PhoneNum>2069095667</PhoneNum>
      <SignatureDt>2024-04-06</SignatureDt>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>Benjamin</PersonFirstNm>
        <PersonLastNm>Borm</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>1</TrustedCustomerCd>
        <OOBSecurityVerificationCd>11</OOBSecurityVerificationCd>
        <LastSubmissionRqrOOBCd>0</LastSubmissionRqrOOBCd>
        <AuthenticationAssuranceLevelCd>AAL2</AuthenticationAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="2">
    <IRS990EZ documentId="R000001" referenceDocumentId="R000002" softwareId="23018249" softwareVersionNum="v1.00">
      <GroupExemptionNum>6122</GroupExemptionNum>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <Organization501cInd organization501cTypeTxt="5">X</Organization501cInd>
      <TypeOfOrganizationOtherInd>X</TypeOfOrganizationOtherInd>
      <TypeOfOrganizationOtherDesc>Local Union</TypeOfOrganizationOtherDesc>
      <GrossReceiptsAmt>89262</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>0</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>0</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>87411</MembershipDuesAmt>
      <InvestmentIncomeAmt>275</InvestmentIncomeAmt>
      <SaleOfAssetsGrossAmt>0</SaleOfAssetsGrossAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <GamingGrossIncomeAmt>0</GamingGrossIncomeAmt>
      <FundraisingGrossIncomeAmt fndrsngEventContriPrevRptAmt="0">0</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>0</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>0</SpecialEventsNetIncomeLossAmt>
      <GrossSalesOfInventoryAmt>0</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>1576</OtherRevenueTotalAmt>
      <TotalRevenueAmt>89262</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>7800</GrantsAndSimilarAmountsPaidAmt>
      <BenefitsPaidToOrForMembersAmt>0</BenefitsPaidToOrForMembersAmt>
      <SalariesOtherCompEmplBnftAmt>84202</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>0</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>2178</OccupancyRentUtltsAndMaintAmt>
      <PrintingPublicationsPostageAmt>0</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>1571</OtherExpensesTotalAmt>
      <TotalExpensesAmt>95751</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-6489</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>326652</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>320163</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>326652</BOYAmt>
        <EOYAmt>320163</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>326652</BOYAmt>
        <EOYAmt>320163</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>326652</BOYAmt>
        <EOYAmt>320163</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Collectively bargain and represent membership for better work conditions, hours and wages.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Supported Members.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>0</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Troy Shtogren</PersonNm>
        <TitleTxt>Local Chairman</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>15</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>20491</CompensationAmt>
        <ExpenseAccountOtherAllwncAmt>84</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Korey M McDaniel</PersonNm>
        <TitleTxt>Local Chairman</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>15</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>14855</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Benjamin Borm</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>8159</CompensationAmt>
        <ExpenseAccountOtherAllwncAmt>85</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Chris Onnink</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>4200</CompensationAmt>
        <ExpenseAccountOtherAllwncAmt>62</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Richard T Heeley</PersonNm>
        <TitleTxt>Local Chairman</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>15</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>9862</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Nathan P Morris</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>4200</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Mark Molving</PersonNm>
        <TitleTxt>Vice Local Chairperson</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>2495</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Jason Foust</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>1090</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Todd Kester</PersonNm>
        <TitleTxt>LCA Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Scott G Borsheim</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.10</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>315</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Steven J Woods</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.10</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>315</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Eric J Hanson</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.10</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>488</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Derek Wickstrom</PersonNm>
        <TitleTxt>Vice LC</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>1104</CompensationAmt>
        <ExpenseAccountOtherAllwncAmt>2370</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <Form1120PolFiledInd>0</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>Benjamin Borm</PersonNm>
        <USAddress>
          <AddressLine1Txt>14230 113th Ave NE</AddressLine1Txt>
          <CityNm>Kirkland</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>98034</ZIPCd>
        </USAddress>
        <PhoneNum>2069095667</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>0</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
    </IRS990EZ>
    <IRS990ScheduleO documentId="R000002" softwareId="23018249" softwareVersionNum="v1.00">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>Description;Amount^Dues collected through payroll deduction in error;1576^Total;1576^</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 10</FormAndLineReferenceDesc>
        <ExplanationTxt>This amount is for membership approved donations to organizations helping others and members in need of assistance medically. $1,200 holiday doanation to Westside Baby. $1,200 to member Richard Parks in October for assistance. $1,200 to member Sean Ward for assistance. $1,200 to member Scott Borsheim for medical assistance. $1,200 for member Kirk Sides for medical assistance. $1,200 to member Richard Parks in February for assistance. $600 to Local 66 to provide Christmas BBQ meals for families in need.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Refunds to members for dues overpaid.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
