﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2018v3.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2019-07-22T11:48:18-00:00</ReturnTs>
    <TaxPeriodEndDt>2018-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2018-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>136149681</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Steamfitters' Industry Security Benefit Fund</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>STEA</BusinessNameControlTxt>
      <PhoneNum>2124658888</PhoneNum>
      <USAddress>
        <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
        <CityNm>Long Island City</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>111013725</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Patrick Dolan Jr</PersonNm>
      <PersonTitleTxt>Employee Trustee</PersonTitleTxt>
      <SignatureDt>2019-07-22</SignatureDt>
      <DiscussWithPaidPreparerInd>false</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <FilingSecurityInformation>
      <IPAddress>
        <IPv4AddressTxt>207.223.46.196</IPv4AddressTxt>
      </IPAddress>
      <IPDt>2019-07-22</IPDt>
      <IPTm>15:31:56</IPTm>
      <IPTimezoneCd>ED</IPTimezoneCd>
      <FilingLicenseTypeCd>P</FilingLicenseTypeCd>
      <AtSubmissionCreationDeviceId>AE7A48F608629DE6206D439144C333981208DB22</AtSubmissionCreationDeviceId>
      <AtSubmissionFilingDeviceId>433E12344F328F3CAC2B899CE7CEFA07B0CC3FC7</AtSubmissionFilingDeviceId>
    </FilingSecurityInformation>
    <TaxYr>2018</TaxYr>
    <BuildTS>2019-02-21 02:37:17Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="990" softwareId="18007340" softwareVersionNum="19.1.1.0">
      <PrincipalOfcrBusinessName>
        <BusinessNameLine1Txt>Kevin J Driscoll Executive Administrator</BusinessNameLine1Txt>
      </PrincipalOfcrBusinessName>
      <USAddress>
        <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
        <CityNm>Long Island City</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>111013725</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>456883069</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501cInd organization501cTypeTxt="5">X</Organization501cInd>
      <WebsiteAddressTxt>www.steamfitters.com</WebsiteAddressTxt>
      <TypeOfOrganizationTrustInd>X</TypeOfOrganizationTrustInd>
      <FormationYr>1961</FormationYr>
      <LegalDomicileStateCd>NY</LegalDomicileStateCd>
      <ActivityOrMissionDesc>The Fund was established to accumulate funds to provide supplemental benefits to partic. They become eligible to part in the Plan beg with the first day in which they work in covered employ for a signed contractor.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>6</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>6</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <CYContributionsGrantsAmt>0</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>47159019</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>48635987</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>15705566</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>13897423</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>100026</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>87077</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>62964611</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>62620487</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>35646112</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>35756871</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>379270</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>393772</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>1326473</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>1502055</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>37351855</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>37652698</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>25612756</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>24967789</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>268904337</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>271200452</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>3279704</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>4618473</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>265624633</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>266581979</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>The Fund was established to accumulate funds to pay or provide supplemental benefits to participants. The Fund is a multi- employer plan and is funded by employer contributions determined in accordance with the collective bargaining agreement.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>35756871</ExpenseAmt>
      <Desc>Benefits paid to or for participants</Desc>
      <TotalProgramServiceExpensesAmt>35756871</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind>false</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>false</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
      <ConservationEasementsInd>false</ConservationEasementsInd>
      <CollectionsOfArtInd>false</CollectionsOfArtInd>
      <CreditCounselingInd>false</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd>false</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd>false</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="990D">true</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd>false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd>false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="990D">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd>false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="990D">true</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd>false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="990J">true</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>false</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="990R">true</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>6</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>6</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>NY</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>Kevin J Driscoll Executive Administ</PersonNm>
        <PhoneNum>2124658888</PhoneNum>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>111013725</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>Patrick Dolan Jr</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Robert Egan</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Christopher Kraft</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Anthony Saporito</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Ralph Montuoro Jr</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peter C Vrankovic</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Shane McMorrow</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>002.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Kevin J Driscoll</PersonNm>
        <TitleTxt>Executive Administrator</TitleTxt>
        <AverageHoursPerWeekRt>001.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>034.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>4382</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>433741</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>22440</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>William J Turnbull</PersonNm>
        <TitleTxt>Controller</TitleTxt>
        <AverageHoursPerWeekRt>001.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>034.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>1423</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>283208</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>22856</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peter J Ruffner</PersonNm>
        <TitleTxt>Assistant Administrator</TitleTxt>
        <AverageHoursPerWeekRltdOrgRt>035.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>250255</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>21028</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Thomas Goodwin</PersonNm>
        <TitleTxt>Education Director</TitleTxt>
        <AverageHoursPerWeekRltdOrgRt>040.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>203895</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>61143</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Sean Driscoll</PersonNm>
        <TitleTxt>IT Director</TitleTxt>
        <AverageHoursPerWeekRt>006.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>029.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>21780</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>136042</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>21028</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Steven Cuadra</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <AverageHoursPerWeekRltdOrgRt>035.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>154133</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>50505</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Daniel Knights</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <AverageHoursPerWeekRltdOrgRt>035.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>152987</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>50505</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Paul Hopkins</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <AverageHoursPerWeekRltdOrgRt>035.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>149326</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>50505</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>James Coffey</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <AverageHoursPerWeekRltdOrgRt>035.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>137982</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>50505</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>27585</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>1901569</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>350515</TotalOtherCompensationAmt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ProgramServiceRevenueGrp>
        <Desc>Employer contributions</Desc>
        <BusinessCd>525100</BusinessCd>
        <TotalRevenueColumnAmt>48635987</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>48635987</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>48635987</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>6455266</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6455266</RelatedOrExemptFuncIncomeAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>401704739</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>394262582</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>7442157</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>7442157</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>7442157</RelatedOrExemptFuncIncomeAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>Miscellaneous Income</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>87077</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>87077</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>87077</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>62620487</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>62620487</RelatedOrExemptFuncIncomeAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>35756871</TotalAmt>
        <ProgramServicesAmt>35756871</ProgramServicesAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>5804</TotalAmt>
        <ManagementAndGeneralAmt>5804</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>246539</TotalAmt>
        <ManagementAndGeneralAmt>246539</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>71447</TotalAmt>
        <ManagementAndGeneralAmt>71447</ManagementAndGeneralAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>53368</TotalAmt>
        <ManagementAndGeneralAmt>53368</ManagementAndGeneralAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>16614</TotalAmt>
        <ManagementAndGeneralAmt>16614</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>9009</TotalAmt>
        <ManagementAndGeneralAmt>9009</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>19116</TotalAmt>
        <ManagementAndGeneralAmt>19116</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising></FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>1260330</TotalAmt>
        <ManagementAndGeneralAmt>1260330</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>0</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>158008</TotalAmt>
        <ManagementAndGeneralAmt>158008</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>10613</TotalAmt>
        <ManagementAndGeneralAmt>10613</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>16400</TotalAmt>
        <ManagementAndGeneralAmt>16400</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>1359</TotalAmt>
        <ManagementAndGeneralAmt>1359</ManagementAndGeneralAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>1755</TotalAmt>
        <ManagementAndGeneralAmt>1755</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>0</TotalAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>0</TotalAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>25465</TotalAmt>
        <ManagementAndGeneralAmt>25465</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>0</TotalAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>37652698</TotalAmt>
        <ProgramServicesAmt>35756871</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1895827</ManagementAndGeneralAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>1139211</BOYAmt>
        <EOYAmt>1760405</EOYAmt>
      </CashNonInterestBearingGrp>
      <AccountsReceivableGrp>
        <BOYAmt>3650274</BOYAmt>
        <EOYAmt>3099431</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>22586</BOYAmt>
        <EOYAmt>23237</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>190105331</BOYAmt>
        <EOYAmt>153454627</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>73986935</BOYAmt>
        <EOYAmt>112862752</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <TotalAssetsGrp>
        <BOYAmt>268904337</BOYAmt>
        <EOYAmt>271200452</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>220462</BOYAmt>
        <EOYAmt>198299</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>3059242</BOYAmt>
        <EOYAmt>4420174</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>3279704</BOYAmt>
        <EOYAmt>4618473</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>265624633</BOYAmt>
        <EOYAmt>266581979</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>265624633</BOYAmt>
        <EOYAmt>266581979</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>268904337</BOYAmt>
        <EOYAmt>271200452</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>24967789</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-24010443</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="990D" softwareId="18007340" softwareVersionNum="19.1.1.0">
      <InclEscrowCustodialAcctLiabInd>false</InclEscrowCustodialAcctLiabInd>
      <OtherSecuritiesGrp>
        <Desc>Financial derivatives and other financial products</Desc>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Closely-held equity interests</Desc>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Lord Abbett International Core Fixed Income</Desc>
        <BookValueAmt>39458402</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Janus Institutional Intl Equity Fund</Desc>
        <BookValueAmt>31140638</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>ULLICO Infrastructure Fund LP</Desc>
        <BookValueAmt>30000000</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Kennedy Wilson Real Estate Fund VI, LP</Desc>
        <BookValueAmt>12263712</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>112862752</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Federal income taxes</Desc>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Due to/from other funds</Desc>
        <Amt>34759</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Securities Purchases</Desc>
        <Amt>4385415</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>4420174</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>37349714</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-24010443</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>-24010443</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>61360157</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>1260330</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>1260330</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>62620487</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>36392368</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>36392368</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>1260330</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>1260330</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>37652698</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>X 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The Trustees have evaluated the tax positions taken by the Fund and have concluded that as of December 31, 2018, there was no uncertain positions taken or expected to be taken, that would require the recognition of a liability or asset or disclosure in the financial statements. The Fund is subject to routine audits by taxing jurisdictions until the applicable statue of limitations expires however, there are currently no audits for any tax periods in progress.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="990J" softwareId="18007340" softwareVersionNum="19.1.1.0">
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kevin J Driscoll</PersonNm>
        <TitleTxt>Executive Administrator</TitleTxt>
        <BaseCompensationFilingOrgAmt>4381</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>402540</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>31202</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>22440</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>4381</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>456182</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>William J Turnbull</PersonNm>
        <TitleTxt>Controller</TitleTxt>
        <BaseCompensationFilingOrgAmt>1423</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>246494</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>36714</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>22856</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>1423</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>306064</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Peter J Ruffner</PersonNm>
        <TitleTxt>Assistant Administrator</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>237539</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>12716</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>21028</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>271283</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Thomas Goodwin</PersonNm>
        <TitleTxt>Education Director</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>194915</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>8980</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>61143</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>265038</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Sean Driscoll</PersonNm>
        <TitleTxt>IT Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>21779</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>127695</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>8348</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>21028</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>21779</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>157071</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Steven Cuadra</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>154133</CompensationBasedOnRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>50505</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>204638</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Daniel Knights</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>152987</CompensationBasedOnRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>50505</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>203492</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Paul Hopkins</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>149326</CompensationBasedOnRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>50505</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>199831</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>James Coffey</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>137982</CompensationBasedOnRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>50505</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>188487</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="990O" softwareId="18007340" softwareVersionNum="19.1.1.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11A</FormAndLineReferenceDesc>
        <ExplanationTxt>This tax return was prepared by staff and reviewed by the Funds Controller, who is a CPA. Then, it was provided to the Funds auditors for review and approval. Lastly, it is provided to a member of the Board of Directors for review and signature.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15AB</FormAndLineReferenceDesc>
        <ExplanationTxt>The Administrator of the Trust Funds negotiates with the Chairman and Co-Chairman of each Fund and agree to an increase in wages for all staff within the parameters set by the collective bargaining agreement.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>The Fund is subject to ERISA and the Trustees conform to its regulations. Each year, Trustees sign a statement which affirms that such person has received a copy of the Conflict of Interest Policy and has read and understands the Policy. Also, the Trustees agree to comply with the Policy and understand that the Plan is a tax exempt organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>As required by ERISA, the Funds governing documents, policies, financial statements and tax returns are available upon request by writing to the Fund Office and requesting a copy. This return was not filed on time and granted an extension because more time was needed to acquire all information needed to file and complete an accurate return.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="990R" softwareId="18007340" softwareVersionNum="19.1.1.0">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Welfare Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>131545680</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 c5</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Pension Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>136149680</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>401 a</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters Industry Vacation Plan</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>136149682</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 c 9</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Educational Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>131919703</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 c5</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Supplemental Retirement Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>133917806</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>401 a</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Metal Trades Branch Local 638 Welfare Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>136211854</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 c 9</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Metal Trades Branch Local 638 Pension Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>132541630</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>401 a</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Service Fitters' Industry Educational Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>112892696</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 c 3</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Steamfitting Industry Labor Management Coop Committee</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>367498676</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501 c 5</ExemptCodeSectionTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Not applicable</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Steamfitters' Industry Welfare Fund</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>n</TransactionTypeTxt>
        <InvolvedAmt>174106</InvolvedAmt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Steamfitters' Industry Welfare Fund</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>o</TransactionTypeTxt>
        <InvolvedAmt>393772</InvolvedAmt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Steamfitters' Industry Welfare Fund</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>p</TransactionTypeTxt>
        <InvolvedAmt>67619</InvolvedAmt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>