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        <PersonNm>SUSAN TROLIER - MCKINSTRY</PersonNm>
        <TitleTxt>IMMEDIATE PAST PRESIDENT</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL RFITZSIMMONS</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ERIC STACH</PersonNm>
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        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DAVID J PARILLO</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>TODD M OSMAN</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
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      <Form990PartVIISectionAGrp>
        <PersonNm>J ARDIE DILLEN</PersonNm>
        <TitleTxt>DIRECTOR FINANCE AND ADMINISTRATION</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DAMON DOZIER</PersonNm>
        <TitleTxt>DIRECTOR OF GOVERNMENT AFFAIRS</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PATRICIA A HASTINGS</PersonNm>
        <TitleTxt>DIRECTOR OF MEETINGS</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>27165</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>EILEEN KILEY</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>144587</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>12264</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARY KAUFOLD</PersonNm>
        <TitleTxt>ADVERTISING AND EXHIBITS, MANAGER</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>110307</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH FLEISCHER</PersonNm>
        <TitleTxt>PRINCIPAL DEVELOPMENT EDITOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>108656</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>13699</OtherCompensationAmt>
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      <TotalReportableCompFromOrgAmt>1134949</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>159298</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>7</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PRODUCTION RESOURCE GROUP LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 731516</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75373</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>AUDIO VISUAL SUPPORT</ServicesDesc>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>AVENTURA</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>100 NORTH 3RD STREET</AddressLine1Txt>
            <CityNm>PHOENIX</CityNm>
            <StateAbbreviationCd>AZ</StateAbbreviationCd>
            <ZIPCd>85004</ZIPCd>
          </USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>SHERATON BOSTON HOTEL</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>39 DALTON STREET</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02199</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>FALL MEETING HOST</ServicesDesc>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>CLARIVATE ANALYTICS</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>39327 TREASURY CENTER</AddressLine1Txt>
            <CityNm>CHICAGO</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60694</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>UC-REGENTS</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>6607 SOUTH HALL</AddressLine1Txt>
            <CityNm>SANTA BARBARA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>93106</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>DRC/EMC MEETING HOST</ServicesDesc>
        <CompensationAmt>172833</CompensationAmt>
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      <CntrctRcvdGreaterThan100KCnt>9</CntrctRcvdGreaterThan100KCnt>
      <GovernmentGrantsAmt>207528</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>591116</AllOtherContributionsAmt>
      <TotalContributionsAmt>798644</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>REGISTRATION FEES</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>6524846</TotalRevenueColumnAmt>
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        <ExclusionAmt>1090740</ExclusionAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>511120</BusinessCd>
        <TotalRevenueColumnAmt>373347</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>373347</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>CAREER CENTRAL JOB BOARD</Desc>
        <BusinessCd>541800</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>117223</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>SUBSCRIPTIONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>4780</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4780</RelatedOrExemptFuncIncomeAmt>
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      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>238534</TotalRevenueColumnAmt>
        <ExclusionAmt>238534</ExclusionAmt>
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      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>1424896</TotalRevenueColumnAmt>
        <ExclusionAmt>1424896</ExclusionAmt>
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      <GrossSalesOfInventoryAmt>8018</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>8018</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>8018</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
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        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>406820</TotalRevenueColumnAmt>
        <ExclusionAmt>406820</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>ADVERTISING</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>285910</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>285910</UnrelatedBusinessRevenueAmt>
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      <MiscellaneousRevenueGrp>
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        <ExclusionAmt>209613</ExclusionAmt>
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      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>10392631</TotalRevenueColumnAmt>
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        <UnrelatedBusinessRevenueAmt>285910</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>3370603</ExclusionAmt>
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      <GrantsToDomesticOrgsGrp>
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        <ProgramServicesAmt>5350</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>50500</ProgramServicesAmt>
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        <ProgramServicesAmt>21490</ProgramServicesAmt>
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        <ProgramServicesAmt>410305</ProgramServicesAmt>
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        <ProgramServicesAmt>1986782</ProgramServicesAmt>
        <ManagementAndGeneralAmt>665136</ManagementAndGeneralAmt>
        <FundraisingAmt>18191</FundraisingAmt>
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        <ProgramServicesAmt>109054</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58284</ManagementAndGeneralAmt>
        <FundraisingAmt>828</FundraisingAmt>
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        <ProgramServicesAmt>458463</ProgramServicesAmt>
        <ManagementAndGeneralAmt>245026</ManagementAndGeneralAmt>
        <FundraisingAmt>3479</FundraisingAmt>
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        <ProgramServicesAmt>179132</ProgramServicesAmt>
        <ManagementAndGeneralAmt>95737</ManagementAndGeneralAmt>
        <FundraisingAmt>1359</FundraisingAmt>
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        <ManagementAndGeneralAmt>19707</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>19895</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>10065</TotalAmt>
        <ProgramServicesAmt>10065</ProgramServicesAmt>
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      <FeesForServicesOtherGrp>
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        <ProgramServicesAmt>344633</ProgramServicesAmt>
        <ManagementAndGeneralAmt>61284</ManagementAndGeneralAmt>
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      <AdvertisingGrp>
        <TotalAmt>37480</TotalAmt>
        <ProgramServicesAmt>37480</ProgramServicesAmt>
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      <OfficeExpensesGrp>
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        <ProgramServicesAmt>67333</ProgramServicesAmt>
        <ManagementAndGeneralAmt>60485</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>222829</TotalAmt>
        <ProgramServicesAmt>144838</ProgramServicesAmt>
        <ManagementAndGeneralAmt>77991</ManagementAndGeneralAmt>
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      <OccupancyGrp>
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        <ProgramServicesAmt>94360</ProgramServicesAmt>
        <ManagementAndGeneralAmt>50810</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>419249</ProgramServicesAmt>
        <ManagementAndGeneralAmt>89837</ManagementAndGeneralAmt>
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      <ConferencesMeetingsGrp>
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        <ProgramServicesAmt>1820935</ProgramServicesAmt>
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        <ProgramServicesAmt>136757</ProgramServicesAmt>
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        <ProgramServicesAmt>18222</ProgramServicesAmt>
        <ManagementAndGeneralAmt>21150</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>741074</ProgramServicesAmt>
        <ManagementAndGeneralAmt>65066</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <ManagementAndGeneralAmt>428</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>242671</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9787</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>77377</ProgramServicesAmt>
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      <AllOtherExpensesGrp>
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        <ProgramServicesAmt>53167</ProgramServicesAmt>
        <ManagementAndGeneralAmt>50871</ManagementAndGeneralAmt>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>7797147</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2281121</ManagementAndGeneralAmt>
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        <EOYAmt>635383</EOYAmt>
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        <EOYAmt>2666226</EOYAmt>
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        <EOYAmt>835248</EOYAmt>
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        <EOYAmt>378041</EOYAmt>
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        <EOYAmt>1486333</EOYAmt>
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        <EOYAmt>8212422</EOYAmt>
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        <EOYAmt>14213653</EOYAmt>
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        <EOYAmt>545094</EOYAmt>
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        <EOYAmt>0</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>2240611</EOYAmt>
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        <EOYAmt>11185266</EOYAmt>
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        <EOYAmt>82776</EOYAmt>
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        <EOYAmt>705000</EOYAmt>
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        <EOYAmt>11973042</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>14213653</EOYAmt>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
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      <GiftsGrantsContrisRcvd509Grp>
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        <CurrentTaxYearMinus3YearsAmt>939004</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1127166</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>897451</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>798644</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>5736924</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus3YearsAmt>1708393</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1702255</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1587019</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1566072</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>1587019</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1566072</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus4YearsAmt>902706</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>605544</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>754258</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>876211</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>679538</CurrentTaxYearAmt>
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      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>9748040</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8783669</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>9710597</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>9097605</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8864505</CurrentTaxYearAmt>
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      <PublicSupportCY509Pct>0.73670</PublicSupportCY509Pct>
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      <InvestmentIncomeCYPct>0.18070</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.17990</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MAILING LIST RENTAL - 2014 AMOUNT: $ 216,250. 2015 AMOUNT: $ 116,509. 2016 AMOUNT: $ 124,691. 2017 AMOUNT: $ 93,390. 2018 AMOUNT: $ 80,207. OTHER REVENUE - 2014 AMOUNT: $ 214,260. 2015 AMOUNT: $ 177,504. 2016 AMOUNT: $ 101,424. 2017 AMOUNT: $ 140,462. 2018 AMOUNT: $ 207,363. ROYALTIES - HOTEL REIMBURSEMENT - 2014 AMOUNT: $ 274,491. 2015 AMOUNT: $ 299,771. 2016 AMOUNT: $ 461,345. 2017 AMOUNT: $ 429,848. 2018 AMOUNT: $ 406,820. REALIZED GAINS ON INVESTMENTS - 2014 AMOUNT: $ 197,705. 2015 AMOUNT: $ 11,760. 2016 AMOUNT: $ 66,798. 2017 AMOUNT: $ 212,511. 2018 AMOUNT: $ -14,852.</ExplanationTxt>
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        <FilingOrganizationsTotalAmt>31961</FilingOrganizationsTotalAmt>
      </TotalGrassrootsLobbyingGrp>
      <TotalDirectLobbyingGrp>
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      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>71011</FilingOrganizationsTotalAmt>
      </TotalLobbyingExpendGrp>
      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>10021048</FilingOrganizationsTotalAmt>
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      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>10092059</FilingOrganizationsTotalAmt>
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      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>654603</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>163651</FilingOrganizationsTotalAmt>
      </GrassrootsNontaxableGrp>
      <TotLbbyngGrassrootMnsNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyngGrassrootMnsNonTxGrp>
      <TotLbbyExpendMnsLbbyngNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyExpendMnsLbbyngNonTxGrp>
      <AvgLobbyingNontaxableAmountGrp>
        <CurrentYearMinus3Amt>663487</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>697842</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>672900</CurrentYearMinus1Amt>
        <CurrentYearAmt>654603</CurrentYearAmt>
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      <LobbyingCeilingAmt>4033248</LobbyingCeilingAmt>
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        <CurrentYearMinus3Amt>203222</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>208018</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>76989</CurrentYearMinus1Amt>
        <CurrentYearAmt>71012</CurrentYearAmt>
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      <AvgGrassrootsNontaxableGrp>
        <CurrentYearMinus3Amt>165872</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>174461</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>168225</CurrentYearMinus1Amt>
        <CurrentYearAmt>163651</CurrentYearAmt>
        <TotalAmt>672209</TotalAmt>
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      <GrassrootsCeilingAmt>1008314</GrassrootsCeilingAmt>
      <AvgGrassrootsLobbyingExpendGrp>
        <CurrentYearMinus3Amt>48892</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>50454</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>35625</CurrentYearMinus1Amt>
        <CurrentYearAmt>31961</CurrentYearAmt>
        <TotalAmt>166932</TotalAmt>
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        <BeginningYearBalanceAmt>705000</BeginningYearBalanceAmt>
        <EndYearBalanceAmt>705000</EndYearBalanceAmt>
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      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>550000</BeginningYearBalanceAmt>
        <ContributionsAmt>155000</ContributionsAmt>
        <EndYearBalanceAmt>705000</EndYearBalanceAmt>
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        <BeginningYearBalanceAmt>450000</BeginningYearBalanceAmt>
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        <EndYearBalanceAmt>450000</EndYearBalanceAmt>
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        <EndYearBalanceAmt>425000</EndYearBalanceAmt>
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      <TotalRevEtcAuditedFinclStmtAmt>9775602</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-606964</NetUnrealizedGainsInvstAmt>
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      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotReportedAmt>-10065</ExpensesNotReportedAmt>
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      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
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        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>A QUASI-ENDOWMENT FOR THE PURPOSE OF ESTABLISHING A GRADUATE STUDENT, MATERIALS CHARACTERIZATION, MATERIALS THEORY, MID CAREER RESEARCHER, AND MRS MEDAL AWARDS. A PORTION OF THE FUNDS ALSO RELATE TO THE DAVID TURNBULL LECTURESHIP FUND WHICH WAS ESTABLISHED TO RECOGNIZE THE CAREER OF A SCIENTIST WHO MADE OUTSTANDING CONTRIBUTIONS IN THE AREA OF MATERIALS RESEARCH AND THE ROBINSON SCIENCE &amp; TECHNOLOGY AWARD ESTABLISHED TO RECOGNIZE A STUDENT/POST DOC/YOUNG PROFESSIONAL IN THE AREA OF RENEWABLE SOURCES OF ENERGY.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
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      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>0</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>0</TotalSpentAmt>
      <ForeignIndividualsGrantsGrp>
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        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>10500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
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      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>AWARDS</TypeOfAssistanceTxt>
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        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>5,000 CHECK AND 5,000 WIRE</MannerOfCashDisbursementTxt>
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      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THESE REPRESENT EITHER AWARD GRANTS FOR NOTABLE SERVICES AND ACCOMPLISHMENTS IN THE MATERIALS SCIENCE FIELD OR ARE HONORARIA FOR LECTURES AND ARE MADE WITHOUT RESTRICTION</ExplanationTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MEDALS AWARD</GrantTypeTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>NOWICK AWARD</GrantTypeTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <GrantTypeTxt>NELSON "BUCK" ROBINSON SCIENCE AND TECHNOLOGY HONORARIUM</GrantTypeTxt>
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        <CashGrantAmt>5000</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MID CAREER AWARD</GrantTypeTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>INNOVATION IN MATERIALS CHARACTERIZATION AWARD</GrantTypeTxt>
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        <CashGrantAmt>5000</CashGrantAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANT RECIPIENTS ARE SELECTED BASED ON PROJECT EVALUATION/SELECTION OR PAST NOTABLE SERVICES AND ACCOMPLISHMENTS TO THE MATERIALS RESEARCH FIELD. GRANT RECIPIENTS ARE SELECTED BY SPECIFIED COMMITTEES AND OFTEN ARE SUBJECT TO BOARD APPROVAL.</ExplanationTxt>
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        <DeferredCompensationFlngOrgAmt>7608</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19557</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>189215</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>EILEEN KILEY</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>134500</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>10087</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>6725</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>5539</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>156851</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>EMPLOYER CONTRIBUTION TO 457(F) NON-QUALIFIED DEFERRED COMPENSATION AGREEMENT FOR THE YEAR ENDED 12/31/18 -TODD M OSMAN: $11,648.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY'S MEMBERS ELECT THE MEMBERS OF THE GOVERNING BODY AND APPROVE SIGNIFICANT DECISIONS OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>SOCIETY CONSISTS OF MORE THAN 14,000 MEMBERS FROM THE UNITED STATES OF AMERICA AND MORE THAN 90 OTHER COUNTRIES. MEMBERS AND THE HEADQUARTERS STAFF WORK TOGETHER ENCOURAGING INTERDISCIPLINARY COMMUNICATION AND TECHNICAL INFORMATION EXCHANGE ACROSS THE VARIOUS FIELDS OF SCIENCE AFFECTING MATERIALS OF TECHNOLOGICAL IMPORTANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF THE SOCIETY ARE ENTITLED TO VOTE: (A) FOR DIRECTORS; (B) FOR THE VICE PRESIDENT AND SECRETARY; (C) ON AMENDMENTS TO THE CONSTITUTION; (D) ON MEMBER-INITIATED REFERENDUMS RELATED TO BYLAWS ADOPTED OR CHANGED BY THE BOARD OF DIRECTORS; AND (E) ON PROPOSALS SUBMITTED BY MEMBERS TO REMOVE OFFICERS OR DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS VOTE TO ELECT THE BOARD OF DIRECTORS AND ON SELECTED MATTERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD HAS APPOINTED THE OPERATIONAL OVERSIGHT/AUDIT COMMITTEE TO REVIEW THE 990 BEFORE SUBMISSION. THE 990 IS MADE AVAILABLE TO THE ENTIRE BOARD BEFORE SUBMISSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH YEAR, DURING THE FALL BOARD MEETING EACH BOARD MEMBER IS REQUIRED TO COMPLETE A CONFLICT OF INTEREST POLICY ACKNOWLEDGMENT. THE EMPLOYEE CONFLICT OF INTEREST POLICY IS INCLUDED IN THE EMPLOYEE HANDBOOK, AND REQUIRES A SIGNATURE OF ACKNOWLEDGMENT ON AN ANNUAL BASIS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>ANNUAL COMPENSATION ADJUSTMENTS ARE BASED ON INDIVIDUAL PERFORMANCE, MARKET INFLUENCES AND THE FINANCIAL PERFORMANCE OF THE SOCIETY. MARKET INFLUENCES INCLUDE, CPI INFORMATION, COMPARABILITY DATA FROM CONSULTANTS AND/OR BENCHMARK SURVEYS, INFORMATION FROM INDUSTRY WHERE, APPLICABLE, AND COMPA RATIO METHOD ESTABLISHED IN PRIOR YEARS BY COMPENSATION CONSULTANTS. ALL COMPENSATION ADJUSTMENTS FOR STAFF ARE APPROVED BY THE EXECUTIVE DIRECTOR WITH COMPARABILITY DATA AND COMPENSATION FOR TOP MANAGEMENT STAFF BEING REVIEWED BY THE GOVERNANCE COMMITTEE. THE EXECUTIVE DIRECTOR'S COMPENSATION ADJUSTMENT IS SET BY THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS ARE AVAILABLE ON THE MRS WEBSITE. FINANCIAL STATEMENTS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE UPON REQUEST. FINANCIAL STATEMENT SUMMARY IS ON WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>