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      <OnlyInHouseLobbyingInd>1</OnlyInHouseLobbyingInd>
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        <BookValueAmt>1079657</BookValueAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>PART X, LINE 2: THE LOCAL BELIEVES THAT ALL SIGNIFICANT TAX POSITIONS UTILIZED BY THE LOCAL WILL MORE LIKELY THAN NOT BE SUSTAINED UPON EXAMINATION. AS OF DECEMBER, 31, 2024 THE TAX YEARS THAT REMAIN SUBJECT TO EXAMINATION BY THE MAJOR TAX JURISDICTIONS UNDER THE STATUTE OF LIMITATIONS ARE FROM THE 2021 FORWARD (WITH LIMITED EXCEPTIONS). TAX PENALTIES AND INTEREST, IF ANY,WOULD BE ACCRUED AS INCURRED AND WOULD BE CLASSIFIED AS TAX EXPENSE IN THE STATEMENT OF ACTIVITIES.</ExplanationTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARK MAHER JR</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
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        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>IUOE 450 MEMBERS PAY DUES TO THE ORGANIZATION AND ARE WORKING FOR A LIVELIHOOD WITHIN THE TRADE AUTONOMY OF THE INTERNATIONAL UNION. THE REGULAR MEMBERS HAVE FULL VOTING RIGHTS REGARDING THE ELECTION OF OFFICERS, DUES RATES, AND OTHER ITEMS PER THE LOCAL'S CONSTITUTION AND BY-LAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICER ELECTIONS ARE HELD EVERY THREE YEARS. THE REGULAR MEMBERS WHO HAVE FULL VOTING RIGHTS FOR THE LOCAL'S ELECTION OF OFFICERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>CERTAIN ACTION ITEMS ARE BROUGHT BEFORE THE MEMBERSHIP FOR REVIEW, VOTE OR APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE FORM 990 IS PROVIDED TO THE LOCAL'S GOVERNING BODY PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>THE LOCAL'S POLICIES AND PROCEDURES ARE MONITORED AND REVIEWED ON AN ANNUAL BASIS AT UNION MEETINGS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR OFFICERS AND EMPLOYEES IS NEGOTIATED IN THE COLLECTIVE BARGAINING AGREEMENT AND THE UNION CONSTITUTION AND BYLAWS. ALL COMPENSATION IS APPROVED BY THE BOARD OF TRUSTEES AND THE LOCAL AND IS REVIEWED ON AN ANNUAL BASIS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL DOCUMENTS ARE AVAILABLE FOR INSPECTION AT THE LOCAL'S BUSINESS OFFICE. TAX RETURNS, THE OLMS FORM LM-2, AND GOVERNING DOCUMENTS, ARE AVAILABLE FOR INSPECTION UPON REQUEST DURING NORMAL BUSINESS HOURS AT THE BUSINESS OFFICE OF THE LOCAL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII LINE 1C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF TRUSTEES ASSUMES RESPONSIBILITY FOR THE SELECTION OF THE AUDITING FIRM, OVERSIGHT OF THE ANNUAL AUIDT AND APPROVAL OF THE AUDIT REPORT.</ExplanationTxt>
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          <ZIPCd>77535</ZIPCd>
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      <IdRelatedTaxExemptOrgGrp>
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          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20036</ZIPCd>
        </USAddress>
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        <LegalDomicileStateCd>DC</LegalDomicileStateCd>
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      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
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      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
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          <BusinessNameLine1Txt>INTERNATIONAL UNION OF OPERATING ENGINEERS</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>R</TransactionTypeTxt>
        <InvolvedAmt>301153</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>MONTHLY PER CAPITA PAYMENTS</MethodOfAmountDeterminationTxt>
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      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>INTERNATIONAL UNION OF OPERATING ENGINEERS</BusinessNameLine1Txt>
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        <MethodOfAmountDeterminationTxt>LOAN TO THE IUOE</MethodOfAmountDeterminationTxt>
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</Return>