﻿<?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="2011v1.2">
  <ReturnHeader binaryAttachmentCount="0">
    <Timestamp>2012-11-12T10:52:16-06:00</Timestamp>
    <TaxPeriodEndDate>2011-12-31</TaxPeriodEndDate>
    <PreparerFirm>
      <EIN>320043599</EIN>
      <PreparerFirmBusinessName>
        <BusinessNameLine1>LEGACY PROFESSIONALS LLP</BusinessNameLine1>
      </PreparerFirmBusinessName>
      <PreparerFirmUSAddress>
        <AddressLine1>311 SOUTH WACKER DRIVE SUITE 4000</AddressLine1>
        <City>CHICAGO</City>
        <State>IL</State>
        <ZIPCode>60606</ZIPCode>
      </PreparerFirmUSAddress>
    </PreparerFirm>
    <ReturnType>990</ReturnType>
    <TaxPeriodBeginDate>2011-01-01</TaxPeriodBeginDate>
    <Filer>
      <EIN>362141703</EIN>
      <Name>
        <BusinessNameLine1>PIPE FITTERS' WELFARE FUND LOCAL 597</BusinessNameLine1>
      </Name>
      <NameControl>PIPE</NameControl>
      <Phone>3126330597</Phone>
      <USAddress>
        <AddressLine1>45 NORTH OGDEN AVENUE</AddressLine1>
        <City>CHICAGO</City>
        <State>IL</State>
        <ZIPCode>60607</ZIPCode>
      </USAddress>
    </Filer>
    <Officer>
      <Name>KEVIN MORRISSEY</Name>
      <Title>TRUSTEE</Title>
      <Phone>3126330597</Phone>
      <DateSigned>2012-11-12</DateSigned>
      <AuthorizeThirdParty>1</AuthorizeThirdParty>
    </Officer>
    <Preparer>
      <Name>VICTOR ANCICH JR</Name>
      <PTIN>P00201493</PTIN>
      <Phone>3123680500</Phone>
    </Preparer>
    <TaxYear>2011</TaxYear>
    <BuildTS>2016-02-24 21:20:13Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCount="5">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <NameOfPrincipalOfficerPerson>KEVIN MORRISSEY</NameOfPrincipalOfficerPerson>
      <AddressPrincipalOfficerUS>
        <AddressLine1>45 NORTH OGDEN AVENUE</AddressLine1>
        <City>CHICAGO</City>
        <State>IL</State>
        <ZIPCode>60607</ZIPCode>
      </AddressPrincipalOfficerUS>
      <GrossReceipts>466201737</GrossReceipts>
      <GroupReturnForAffiliates>0</GroupReturnForAffiliates>
      <Organization501c typeOf501cOrganization="9">X</Organization501c>
      <WebSite>WWW.PF597.ORG</WebSite>
      <TypeOfOrganizationTrust>X</TypeOfOrganizationTrust>
      <YearFormation>1949</YearFormation>
      <StateLegalDomicile>IL</StateLegalDomicile>
      <ActivityOrMissionDescription>TO PROVIDE HEALTH BENEFITS</ActivityOrMissionDescription>
      <NbrVotingMembersGoverningBody>8</NbrVotingMembersGoverningBody>
      <NbrIndependentVotingMembers>7</NbrIndependentVotingMembers>
      <TotalNbrEmployees>162</TotalNbrEmployees>
      <TotalNbrVolunteers>0</TotalNbrVolunteers>
      <TotalGrossUBI>0</TotalGrossUBI>
      <NetUnrelatedBusinessTxblIncome>0</NetUnrelatedBusinessTxblIncome>
      <ContributionsGrantsPriorYear>0</ContributionsGrantsPriorYear>
      <ContributionsGrantsCurrentYear>0</ContributionsGrantsCurrentYear>
      <ProgramServiceRevenuePriorYear>92955611</ProgramServiceRevenuePriorYear>
      <ProgramServiceRevenueCY>109019554</ProgramServiceRevenueCY>
      <InvestmentIncomePriorYear>6154109</InvestmentIncomePriorYear>
      <InvestmentIncomeCurrentYear>4803151</InvestmentIncomeCurrentYear>
      <OtherRevenuePriorYear>99091</OtherRevenuePriorYear>
      <OtherRevenueCurrentYear>83892</OtherRevenueCurrentYear>
      <TotalRevenuePriorYear>99208811</TotalRevenuePriorYear>
      <TotalRevenueCurrentYear>113906597</TotalRevenueCurrentYear>
      <GrantsAndSimilarAmntsPriorYear>0</GrantsAndSimilarAmntsPriorYear>
      <GrantsAndSimilarAmntsCY>0</GrantsAndSimilarAmntsCY>
      <BenefitsPaidToMembersPriorYear>89805675</BenefitsPaidToMembersPriorYear>
      <BenefitsPaidToMembersCY>97459509</BenefitsPaidToMembersCY>
      <SalariesEtcPriorYear>1192480</SalariesEtcPriorYear>
      <SalariesEtcCurrentYear>1270346</SalariesEtcCurrentYear>
      <TotalProfFundrsngExpPriorYear>0</TotalProfFundrsngExpPriorYear>
      <TotalProfFundrsngExpCY>0</TotalProfFundrsngExpCY>
      <TotalFundrsngExpCurrentYear>0</TotalFundrsngExpCurrentYear>
      <OtherExpensePriorYear>1372990</OtherExpensePriorYear>
      <OtherExpensesCurrentYear>1592034</OtherExpensesCurrentYear>
      <TotalExpensesPriorYear>92371145</TotalExpensesPriorYear>
      <TotalExpensesCurrentYear>100321889</TotalExpensesCurrentYear>
      <RevenuesLessExpensesPriorYear>6837666</RevenuesLessExpensesPriorYear>
      <RevenuesLessExpensesCY>13584708</RevenuesLessExpensesCY>
      <TotalAssetsBOY>201341585</TotalAssetsBOY>
      <TotalAssetsEOY>226185346</TotalAssetsEOY>
      <TotalLiabilitiesBOY>1274779</TotalLiabilitiesBOY>
      <TotalLiabilitiesEOY>5777125</TotalLiabilitiesEOY>
      <NetAssetsOrFundBalancesBOY>200066806</NetAssetsOrFundBalancesBOY>
      <NetAssetsOrFundBalancesEOY>220408221</NetAssetsOrFundBalancesEOY>
      <MissionDescription>TO PROVIDE HEALTH BENEFITS TO THE ELIGIBLE PARTICIPANTS AND DEPENDENTS OF PIPE FITTERS' WELFARE FUND, LOCAL 597.</MissionDescription>
      <SignificantNewProgramServices>0</SignificantNewProgramServices>
      <SignificantChange>0</SignificantChange>
      <Description>TO PROVIDE HEALTH CARE, DEATH AND DISABILITY BENEFITS, DENTAL, VISION, PRESCRIPTION DRUG AND ACCIDENTAL DEATH AND DISMEMBERMENT BENEFITS TO ELIGIBLE PARTICIPANTS AND THEIR DEPENDENTS.</Description>
      <DescribedIn501C3>0</DescribedIn501C3>
      <ScheduleBRequired>0</ScheduleBRequired>
      <PoliticalActivities>0</PoliticalActivities>
      <SubjectToProxyTax>0</SubjectToProxyTax>
      <DonorAdvisedFunds referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFunds>
      <ConservationEasements referenceDocumentId="RetDoc1040000001">0</ConservationEasements>
      <CollectionsOfArt referenceDocumentId="RetDoc1040000001">0</CollectionsOfArt>
      <CreditCounseling referenceDocumentId="RetDoc1040000001">0</CreditCounseling>
      <TermOrPermanentEndowments referenceDocumentId="RetDoc1040000001">0</TermOrPermanentEndowments>
      <ReportLandBldgEquip referenceDocumentId="RetDoc1040000001">1</ReportLandBldgEquip>
      <ReportInvestOthSecurities referenceDocumentId="RetDoc1040000001">1</ReportInvestOthSecurities>
      <ReportProgRelInvest referenceDocumentId="RetDoc1040000001">0</ReportProgRelInvest>
      <ReportOtherAssets referenceDocumentId="RetDoc1040000001">0</ReportOtherAssets>
      <ReportOtherLiabilities referenceDocumentId="RetDoc1040000001">1</ReportOtherLiabilities>
      <ReportFin48Footnote referenceDocumentId="RetDoc1040000001">1</ReportFin48Footnote>
      <IndependentAuditFinancialStmt referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinancialStmt>
      <ConsolidatedAuditFinancialStmt referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinancialStmt>
      <School>0</School>
      <ForeignOffice>0</ForeignOffice>
      <ForeignActivities>0</ForeignActivities>
      <MoreThan5000KToOrganizations>0</MoreThan5000KToOrganizations>
      <MoreThan5000KToIndividuals>0</MoreThan5000KToIndividuals>
      <ProfessionalFundraising>0</ProfessionalFundraising>
      <FundraisingActivities>0</FundraisingActivities>
      <Gaming>0</Gaming>
      <Hospital>0</Hospital>
      <GrantsToOrganizations>0</GrantsToOrganizations>
      <GrantsToIndividuals>0</GrantsToIndividuals>
      <ScheduleJRequired referenceDocumentId="RetDoc1042400001">1</ScheduleJRequired>
      <TaxExemptBonds>0</TaxExemptBonds>
      <LoanToOfficerOrDQP>0</LoanToOfficerOrDQP>
      <GrantToRelatedPerson>0</GrantToRelatedPerson>
      <BsnssRltnshpWithOrganization>0</BsnssRltnshpWithOrganization>
      <BsnssRltnshpThruFamilyMember>0</BsnssRltnshpThruFamilyMember>
      <OfficerEntityWithBsnssRltnshp>0</OfficerEntityWithBsnssRltnshp>
      <DeductibleNonCashContributions>0</DeductibleNonCashContributions>
      <DeductibleContributionsOfArt>0</DeductibleContributionsOfArt>
      <Terminated>0</Terminated>
      <PartialLiquidation>0</PartialLiquidation>
      <DisregardedEntity referenceDocumentId="RetDoc1043400001">0</DisregardedEntity>
      <RelatedEntity referenceDocumentId="RetDoc1043400001">1</RelatedEntity>
      <RelatedOrgControlledEntity>0</RelatedOrgControlledEntity>
      <TransactionRelatedEntity referenceDocumentId="RetDoc1043400001">0</TransactionRelatedEntity>
      <ActivitiesConductedPartnership referenceDocumentId="RetDoc1043400001">0</ActivitiesConductedPartnership>
      <ScheduleORequired>1</ScheduleORequired>
      <NumberFormsTransmittedWith1096>3216</NumberFormsTransmittedWith1096>
      <NumberW2GIncluded>0</NumberW2GIncluded>
      <ComplianceWithBackupWitholding>1</ComplianceWithBackupWitholding>
      <NumberOfEmployees>162</NumberOfEmployees>
      <EmploymentTaxReturnsFiled>1</EmploymentTaxReturnsFiled>
      <UnrelatedBusinessIncome>0</UnrelatedBusinessIncome>
      <ForeignFinancialAccount>0</ForeignFinancialAccount>
      <ProhibitedTaxShelterTrans>0</ProhibitedTaxShelterTrans>
      <TaxablePartyNotification>0</TaxablePartyNotification>
      <NonDeductibleContributions>0</NonDeductibleContributions>
      <QuidProQuoContributions>0</QuidProQuoContributions>
      <Form8282PropertyDisposedOf>0</Form8282PropertyDisposedOf>
      <IndoorTanningServices>0</IndoorTanningServices>
      <InfoInScheduleOPartVI>X</InfoInScheduleOPartVI>
      <NbrVotingGoverningBodyMembers>8</NbrVotingGoverningBodyMembers>
      <NumberIndependentVotingMembers>7</NumberIndependentVotingMembers>
      <FamilyOrBusinessRelationship>0</FamilyOrBusinessRelationship>
      <DelegationOfManagementDuties>0</DelegationOfManagementDuties>
      <ChangesToOrganizingDocs>0</ChangesToOrganizingDocs>
      <MaterialDiversionOrMisuse>0</MaterialDiversionOrMisuse>
      <MembersOrStockholders>0</MembersOrStockholders>
      <ElectionOfBoardMembers>0</ElectionOfBoardMembers>
      <DecisionsSubjectToApproval>0</DecisionsSubjectToApproval>
      <MinutesOfGoverningBody>1</MinutesOfGoverningBody>
      <MinutesOfCommittees>0</MinutesOfCommittees>
      <OfficerMailingAddress>0</OfficerMailingAddress>
      <LocalChapters>0</LocalChapters>
      <Form990ProvidedToGoverningBody>1</Form990ProvidedToGoverningBody>
      <ConflictOfInterestPolicy>0</ConflictOfInterestPolicy>
      <WhistleblowerPolicy>0</WhistleblowerPolicy>
      <DocumentRetentionPolicy>1</DocumentRetentionPolicy>
      <CompensationProcessCEO>0</CompensationProcessCEO>
      <CompensationProcessOther>1</CompensationProcessOther>
      <InvestmentInJointVenture>0</InvestmentInJointVenture>
      <UponRequest>X</UponRequest>
      <TheBooksAreInCareOf>
        <NameBusiness>
          <BusinessNameLine1>PETER DRISCOLL</BusinessNameLine1>
        </NameBusiness>
        <TelephoneNumber>3126330597</TelephoneNumber>
        <AddressUS>
          <AddressLine1>45 NORTH OGDEN AVENUE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60607</ZIPCode>
        </AddressUS>
      </TheBooksAreInCareOf>
      <InfoInScheduleOPartVII>X</InfoInScheduleOPartVII>
      <Form990PartVIISectionA>
        <NamePerson>GREGORY WATSON</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>10.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>318686</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>51402</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>JAMES BUCHANAN</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>THOMAS KOTEL</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>JOHN CURRAN</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>MARC PITTAS</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>STEPHEN LAMB</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>FREDERICK OYER</NamePerson>
        <Title>TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>KEVIN MORRISSEY</NamePerson>
        <Title>TRUSTEE - NEW</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>JOHN KUSZYNSKI</NamePerson>
        <Title>TRUSTEE - PAST</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>PETER DRISCOLL</NamePerson>
        <Title>ADMINISTRATOR</Title>
        <AverageHoursPerWeek>20.00</AverageHoursPerWeek>
        <KeyEmployee>X</KeyEmployee>
        <ReportableCompFromOrganization>245195</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>35203</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>JOSEPH BARRETT</NamePerson>
        <Title>IT MANAGER</Title>
        <AverageHoursPerWeek>6.00</AverageHoursPerWeek>
        <HighestCompensatedEmployee>X</HighestCompensatedEmployee>
        <ReportableCompFromOrganization>145702</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>35203</OtherCompensation>
      </Form990PartVIISectionA>
      <TotalReportableCompFromOrg>709583</TotalReportableCompFromOrg>
      <TotalReportableCompFrmRltdOrgs>0</TotalReportableCompFrmRltdOrgs>
      <TotalOtherCompensation>121808</TotalOtherCompensation>
      <NumberIndividualsGT100K>3</NumberIndividualsGT100K>
      <FormersListed>0</FormersListed>
      <TotalCompGT150K>1</TotalCompGT150K>
      <CompensationFromOtherSources>0</CompensationFromOtherSources>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>BLUE CROSS BLUE SHIELD OF ILLINOIS</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>300 EAST RANDOLPH ST</AddressLine1>
            <City>CHICAGO</City>
            <State>IL</State>
            <ZIPCode>60601</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>PPO ACCESS PROVIDER</DescriptionOfServices>
        <Compensation>2741050</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>EXPRESS SCRIPTS</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>ONE EXPRESS WAY</AddressLine1>
            <City>ST LOUIS</City>
            <State>MO</State>
            <ZIPCode>63121</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>DRUG CLAIM PROCESSING</DescriptionOfServices>
        <Compensation>870321</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>JOHNSON &amp; KROL LLC</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>300 S WACKER DRIVE STE 1313</AddressLine1>
            <City>CHICAGO</City>
            <State>IL</State>
            <ZIPCode>60606</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>LEGAL</DescriptionOfServices>
        <Compensation>303293</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>NATIONAL INVESTMENT SERVICES</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>777 EAST WISCONSIN AVE STE 2350</AddressLine1>
            <City>MILWAUKEE</City>
            <State>WI</State>
            <ZIPCode>53202</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>INVESTMENT MANAGEMENT</DescriptionOfServices>
        <Compensation>230730</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>HINES &amp; ASSOCIATES</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>115 EAST HIGHLAND AVENUE</AddressLine1>
            <City>ELGIN</City>
            <State>IL</State>
            <ZIPCode>60120</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>CASE MANAGEMENT</DescriptionOfServices>
        <Compensation>151257</Compensation>
      </ContractorCompensation>
      <NumberOfContractorsGT100K>7</NumberOfContractorsGT100K>
      <ProgramServiceRevenue>
        <Description>EMPLOYER CONTRIBUTIONS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>98832733</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>98832733</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>SELF PAYMENTS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>7922239</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>7922239</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>MEDICARE PART D SUBSID</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>2135357</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>2135357</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>LIQUIDATED DAMAGES</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>129225</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>129225</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <TotalProgramServiceRevenue>109019554</TotalProgramServiceRevenue>
      <InvestmentIncome>
        <TotalRevenueColumn>4775795</TotalRevenueColumn>
        <ExclusionAmount>4775795</ExclusionAmount>
      </InvestmentIncome>
      <GrossAmountSalesAssets>
        <Securities>352322496</Securities>
      </GrossAmountSalesAssets>
      <LessCostOthBasisSalesExpenses>
        <Securities>352295140</Securities>
      </LessCostOthBasisSalesExpenses>
      <GainOrLoss>
        <Securities>27356</Securities>
      </GainOrLoss>
      <NetGainOrLossInvestments>
        <TotalRevenueColumn>27356</TotalRevenueColumn>
        <ExclusionAmount>27356</ExclusionAmount>
      </NetGainOrLossInvestments>
      <OtherRevenueMisc>
        <Description>MISCELLANEOUS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>80294</TotalRevenueColumn>
        <ExclusionAmount>80294</ExclusionAmount>
      </OtherRevenueMisc>
      <OtherRevenueMisc>
        <Description>SECURITIES LITIGATION</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>3598</TotalRevenueColumn>
        <ExclusionAmount>3598</ExclusionAmount>
      </OtherRevenueMisc>
      <TotalOtherRevenue>83892</TotalOtherRevenue>
      <TotalRevenue>
        <TotalRevenueColumn>113906597</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>109019554</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>0</UnrelatedBusinessRevenue>
        <ExclusionAmount>4887043</ExclusionAmount>
      </TotalRevenue>
      <BenefitsToMembers>
        <Total>97459509</Total>
      </BenefitsToMembers>
      <CompCurrentOfficersDirectors>
        <Total>176430</Total>
      </CompCurrentOfficersDirectors>
      <OtherSalariesAndWages>
        <Total>710002</Total>
      </OtherSalariesAndWages>
      <PensionPlanContributions>
        <Total>137960</Total>
      </PensionPlanContributions>
      <OtherEmployeeBenefits>
        <Total>140693</Total>
      </OtherEmployeeBenefits>
      <PayrollTaxes>
        <Total>105261</Total>
      </PayrollTaxes>
      <FeesForServicesManagement>
        <Total>33912</Total>
      </FeesForServicesManagement>
      <FeesForServicesLegal>
        <Total>315513</Total>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
        <Total>139432</Total>
      </FeesForServicesAccounting>
      <FeesForServicesInvstMgmntFees>
        <Total>275483</Total>
      </FeesForServicesInvstMgmntFees>
      <FeesForServicesOther>
        <Total>138287</Total>
      </FeesForServicesOther>
      <OfficeExpenses>
        <Total>250555</Total>
      </OfficeExpenses>
      <InformationTechnology>
        <Total>154549</Total>
      </InformationTechnology>
      <Occupancy>
        <Total>71536</Total>
      </Occupancy>
      <Travel>
        <Total>4246</Total>
      </Travel>
      <ConferencesMeetings>
        <Total>4287</Total>
      </ConferencesMeetings>
      <DepreciationDepletion>
        <Total>28015</Total>
      </DepreciationDepletion>
      <Insurance>
        <Total>49754</Total>
      </Insurance>
      <OtherExpenses>
        <Description>EARLY RETIREE REINSURAN</Description>
        <Total>78243</Total>
      </OtherExpenses>
      <OtherExpenses>
        <Description>SUPPLIES &amp; MAINTENANCE</Description>
        <Total>33533</Total>
      </OtherExpenses>
      <OtherExpenses>
        <Description>EQUIPMENT RENTALS</Description>
        <Total>7950</Total>
      </OtherExpenses>
      <OtherExpenses>
        <Description>DUES &amp; SUBSCRIPTIONS</Description>
        <Total>6739</Total>
      </OtherExpenses>
      <TotalFunctionalExpenses>
        <Total>100321889</Total>
      </TotalFunctionalExpenses>
      <CashNonInterestBearing>
        <BOY>-169386</BOY>
        <EOY>-149770</EOY>
      </CashNonInterestBearing>
      <SavingsAndTempCashInvestments>
        <BOY>13310687</BOY>
        <EOY>16961810</EOY>
      </SavingsAndTempCashInvestments>
      <AccountsReceivable>
        <BOY>8609508</BOY>
        <EOY>10736848</EOY>
      </AccountsReceivable>
      <PrepaidExpensesDeferredCharges>
        <BOY>59264</BOY>
        <EOY>52424</EOY>
      </PrepaidExpensesDeferredCharges>
      <LandBuildingsEquipmentBasis>1057706</LandBuildingsEquipmentBasis>
      <LandBldgEquipmentAccumDeprec>928499</LandBldgEquipmentAccumDeprec>
      <LandBuildingsEquipmentBasisNet>
        <BOY>166558</BOY>
        <EOY>129207</EOY>
      </LandBuildingsEquipmentBasisNet>
      <InvestmentsPubTradedSecurities>
        <BOY>109340804</BOY>
        <EOY>120923996</EOY>
      </InvestmentsPubTradedSecurities>
      <InvestmentsOtherSecurities>
        <BOY>67542786</BOY>
        <EOY>74639388</EOY>
      </InvestmentsOtherSecurities>
      <OtherAssetsTotal>
        <BOY>2481364</BOY>
        <EOY>2891443</EOY>
      </OtherAssetsTotal>
      <TotalAssets>
        <BOY>201341585</BOY>
        <EOY>226185346</EOY>
      </TotalAssets>
      <AccountsPayableAccruedExpenses>
        <BOY>372008</BOY>
        <EOY>2632405</EOY>
      </AccountsPayableAccruedExpenses>
      <OtherLiabilities>
        <BOY>902771</BOY>
        <EOY>3144720</EOY>
      </OtherLiabilities>
      <TotalLiabilities>
        <BOY>1274779</BOY>
        <EOY>5777125</EOY>
      </TotalLiabilities>
      <DoNotFollowSFAS117>X</DoNotFollowSFAS117>
      <CapStckTrstPrinCurrentFunds>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </CapStckTrstPrinCurrentFunds>
      <PaidInCapSrplsLandBldgEqpFund>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </PaidInCapSrplsLandBldgEqpFund>
      <RetainedEarningsEndowmentEtc>
        <BOY>200066806</BOY>
        <EOY>220408221</EOY>
      </RetainedEarningsEndowmentEtc>
      <TotalNetAssetsFundBalances>
        <BOY>200066806</BOY>
        <EOY>220408221</EOY>
      </TotalNetAssetsFundBalances>
      <TotalLiabNetAssetsFundBalances>
        <BOY>201341585</BOY>
        <EOY>226185346</EOY>
      </TotalLiabNetAssetsFundBalances>
      <InfoInScheduleOPartXI>X</InfoInScheduleOPartXI>
      <ReconcilationRevenueExpenses>13584708</ReconcilationRevenueExpenses>
      <ReconcilationOtherChanges>6756707</ReconcilationOtherChanges>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>0</AccountantCompileOrReview>
      <FSAudited>1</FSAudited>
      <AuditCommittee>1</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>0</FederalGrantAuditRequired>
    </IRS990>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LeaseholdImprovements>
        <OtherCostOrOtherBasis>226357</OtherCostOrOtherBasis>
        <Depreciation>208184</Depreciation>
        <BookValue>18173</BookValue>
      </LeaseholdImprovements>
      <Equipment>
        <OtherCostOrOtherBasis>783126</OtherCostOrOtherBasis>
        <Depreciation>703496</Depreciation>
        <BookValue>79630</BookValue>
      </Equipment>
      <OtherLandBuildings>
        <OtherCostOrOtherBasis>48223</OtherCostOrOtherBasis>
        <Depreciation>16819</Depreciation>
        <BookValue>31404</BookValue>
      </OtherLandBuildings>
      <TotalOfBookValueLandBuildings>129207</TotalOfBookValueLandBuildings>
      <OtherSecurities>
        <Description>COMMON COLLECTIVE TRUST</Description>
        <BookValue>74639388</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <TotalOfBookValueSecurities>74639388</TotalOfBookValueSecurities>
      <OtherLiabilities>
        <Description>DUE TO BROKER</Description>
        <Amount>3130000</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>DUE TO OTHER FUNDS</Description>
        <Amount>14720</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>3144720</TotalOfAmounts>
      <TotalRevenue>113906597</TotalRevenue>
      <TotalExpenses>100321889</TotalExpenses>
      <ExcessOrDeficitForYear>13584708</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>-598232</NetUnrealizedGLOnInvestments>
      <OtherAmount>7354939</OtherAmount>
      <TotalAdjustments>6756707</TotalAdjustments>
      <ExcessOrDeficitPerFS>20341415</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>112954639</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>-598232</NetUnrealizedGainsInvestments>
      <OtherRevenues>-78243</OtherRevenues>
      <RevenueNotRptdF990>-676475</RevenueNotRptdF990>
      <RevenueSubtotal>113631114</RevenueSubtotal>
      <InvestmentExpensesNotIncluded>275483</InvestmentExpensesNotIncluded>
      <RevenueNotRptdOnFinStmt>275483</RevenueNotRptdOnFinStmt>
      <TotalRevenuePerForm990>113906597</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>99968163</TotExpensesEtcAuditedFinclStmt>
      <ExpensesNotRptdF990>0</ExpensesNotRptdF990>
      <ExpensesSubtotal>99968163</ExpensesSubtotal>
      <InvestmentExpensesNotIncluded2>275483</InvestmentExpensesNotIncluded2>
      <OtherExpensesNotIncluded>78243</OtherExpensesNotIncluded>
      <ExpensesNotRptdOnFinStmt>353726</ExpensesNotRptdOnFinStmt>
      <TotalExpensesPerForm990>100321889</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF UNCERTAIN TAX POSITIONS UNDER FIN 48:</Identifier>
        <ReturnReference>PART X:</ReturnReference>
        <Explanation>THE PLAN FILES FORM 990, RETURN OF ORGANIZATION EXEMPT FROM INCOME TAX, AND FORM 5500, ANNUAL RETURN/REPORT OF EMPLOYEE BENEFIT PLAN. THE PLAN'S RETURNS ARE SUBJECT TO EXAMINATION BY THE INTERNAL REVENUE SERVICE UNTIL THE APPLICABLE STATUTE OF LIMITATION EXPIRES.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XI, LINE 8 - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>ASSETS TRANSFERRED INTO PLAN DUE TO MERGER 7,354,939.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XII, LINE 2D - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>EARLY RETIREE REINSURANCE PROGRAM REFUND</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XIII, LINE 4B - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>EARLY RETIREE REINSURANCE PROGRAM REFUND</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <SeverancePayment>0</SeverancePayment>
      <SupplementalNonqualRetirePlan>1</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>0</EquityBasedCompArrangement>
      <Form990ScheduleJPartII>
        <NamePerson>GREGORY WATSON</NamePerson>
        <BaseCompensationFilingOrg>185151</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>133535</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>31910</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>19492</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>370088</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>PETER DRISCOLL</NamePerson>
        <BaseCompensationFilingOrg>237000</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>8195</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>20685</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>14518</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>280398</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>JOSEPH BARRETT</NamePerson>
        <BaseCompensationFilingOrg>145702</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>20685</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>14518</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>180905</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 8B</ReturnReference>
        <Explanation>THE ORGANIZATION HAS NO COMMITTEES TO WHICH IT HAS DELEGATED THE AUTHORITY TO ACT ON BEHALF OF THE GOVERNING BODY.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM AND PROVIDED TO THE ADMINISTRATOR OF THE PLAN. THE ADMINISTRATOR HAS BEEN GIVEN THE AUTHORITY BY THE BOARD OF TRUSTEES TO REVIEW THE FORM 990 PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE. SUBSEQUENTLY A COPY OF THE FORM IS PROVIDED TO THE BOARD.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15B</ReturnReference>
        <Explanation>SALARIES ARE REVIEWED ANNUALLY AND APPROVED BY THE BOARD OF TRUSTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>THE GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST AT THE OFFICE OF THE FUND.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Explanation>FORM 990, PART VII, SECTION A, LINE 1A: THE ADMINISTRATOR, I.T. MANAGER AND ONE TRUSTEE ALSO PROVIDE SERVICES TO OTHER FUNDS AFFILIATED WITH THE REPORTING ORGANIZATION. THE REPORTING ORGANIZATION IS REIMBURSED BY THE AFFILIATED FUNDS FOR THEIR SHARE OF THESE SALARIES AND RELATED EXPENSES. THE AVERAGE HOURS REPORTED ON LINE 1A IS THE WEEKLY HOURS DEDICATED TO THE REPORTING ORGANIZATION. THE TOTAL COMPENSATION REPORTED ON LINE 1A IS THE TOTAL COMPENSATION PAID TO THESE INDIVIDUALS BY THE REPORTING ORGANIZATION AND REPORTED ON FORM W-2 PREPARED BY THE REPORTING ORGANIZATION.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED LOSSES ON INVESTMENTS: -598,232. ASSETS TRANSFERRED INTO PLAN DUE TO MERGER 7,354,939. TOTAL TO FORM 990, PART XI, LINE 5: 6,756,707.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Explanation>EFFECTIVE JANUARY 1, 2011, THE BOARD OF TRUSTEES OF THE PIPE FITTERS' WELFARE FUND, LOCAL 597 AND THE BOARD OF TRUSTEES OF THE PLUMBERS AND STEAMFITTERS LOCAL 422 HEALTH AND WELFARE PLAN EIN 36-2307077 AGREED TO MERGE INTO PIPE FITTERS' WELFARE FUND, LOCAL 597 THAT PORTION OF THE LOCAL 422 HEALTH AND WELFARE PLAN ATTRIBUTABLE TO FORMER ELIGIBLE MEMBERS WHO HAD BEEN TRANSFERRED INTO THE PIPE FITTERS' ASSOCIATION, LOCAL UNION 597, U.A. ON OCTOBER 1, 2009. DURING 2011 PIPE FITTERS' WELFARE FUND, LOCAL 597 RECEIVED $7,354,939 AS A RESULT OF THE MERGER.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>SCHEDULES R AND J AND PART VII:</ReturnReference>
        <Explanation>THE INFORMATION NECESSARY TO DETERMINE AND PROPERLY REPORT RELATED ORGANIZATIONS POTENTIALLY REPORTABLE ON SCHEDULES R AND J AND PART VII OF THIS FORM IS NOT DETERMINABLE USING CURRENT FUND RECORDS. THE INFORMATION IS BEING OBTAINED. ONCE THE APPROPRIATE RECORDS ARE AVAILABLE AND REVIEWED, AN AMENDED RETURN MAY BE SUBMITTED TO COMPLY WITH ANY REQUIRED REPORTING.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>PIPE FITTERS' RETIREMENT FUND LOCAL 597</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>45 NORTH OGDEN AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60607</ZIPCode>
        </AddressUS>
        <EIN>626105084</EIN>
        <PrimaryActivities>PROVIDES RETIREMENT BENEFITS</PrimaryActivities>
        <LegalDomicileState>IL</LegalDomicileState>
        <ExemptCodeSection>401(A)</ExemptCodeSection>
        <DirectControllingEntityName>
          <BusinessNameLine1>NOT APPLICABLE</BusinessNameLine1>
        </DirectControllingEntityName>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>PIPE FITTERS' ASSOCIATION LOCAL 597 401(K) PLAN</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>45 NORTH OGDEN AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60607</ZIPCode>
        </AddressUS>
        <EIN>361820310</EIN>
        <PrimaryActivities>PROVIDES RETIREMENT BENEFITS</PrimaryActivities>
        <LegalDomicileState>IL</LegalDomicileState>
        <ExemptCodeSection>401(A)</ExemptCodeSection>
        <DirectControllingEntityName>
          <BusinessNameLine1>NOT APPLICABLE</BusinessNameLine1>
        </DirectControllingEntityName>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>PIPE FITTERS' TRAINING FUND LOCAL 597</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>10850 W 187TH STREET</AddressLine1>
          <City>MOKENA</City>
          <State>IL</State>
          <ZIPCode>60448</ZIPCode>
        </AddressUS>
        <EIN>362536349</EIN>
        <PrimaryActivities>PROVIDES TRAINING TO PARTICIPANTS</PrimaryActivities>
        <LegalDomicileState>IL</LegalDomicileState>
        <ExemptCodeSection>501(C)5</ExemptCodeSection>
        <DirectControllingEntityName>
          <BusinessNameLine1>NOT APPLICABLE</BusinessNameLine1>
        </DirectControllingEntityName>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <ReceiptOfIntAnnRentsRoyalties>0</ReceiptOfIntAnnRentsRoyalties>
      <GiftGrantOrCapContrToOtherOrg>0</GiftGrantOrCapContrToOtherOrg>
      <GiftGrantOrCapContrFrOtherOrg>0</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>0</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>0</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>0</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>0</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>0</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>0</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>0</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>0</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>0</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>1</SharingOfFacilities>
      <SharingOfPaidEmployees>1</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>0</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>1</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>0</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>0</OtherTransferFromOtherOrg>
      <Form990ScheduleRPartVII>
        <Explanation>THE INFORMATION NECESSARY TO DETERMINE AND PROPERLY REPORT RELATED ORGANIZATIONS POTENTIALLY REPORTABLE ON SCHEDULES R AND J AND PART VII OF THIS FORM IS NOT DETERMINABLE USING CURRENT FUND RECORDS. THE INFORMATION IS BEING OBTAINED. ONCE THE APPROPRIATE RECORDS ARE AVAILABLE AND REVIEWED, AN AMENDED RETURN MAY BE SUBMITTED TO COMPLY WITH ANY REQUIRED REPORTING.</Explanation>
      </Form990ScheduleRPartVII>
    </IRS990ScheduleR>
  </ReturnData>
</Return>