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        <TitleTxt>ASSOCIATE GENERAL COUNSEL</TitleTxt>
        <AverageHoursPerWeekRt>45.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>130091</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>28421</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>2354763</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>326628</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>11</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>GOOGLE INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1600 AMPITHEATRE PARKWAY</AddressLine1Txt>
            <CityNm>MOUNTAIN VIEW</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>94043</ZIPCd>
          </USAddress>
        </ContractorAddress>
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        <CompensationAmt>3112755</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FACEBOOK</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1 HACKER WAY</AddressLine1Txt>
            <CityNm>MENLO PARK</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>94025</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>SOCIAL MEDIA</ServicesDesc>
        <CompensationAmt>3062585</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FREEMAN AUDIO VISUAL AND FREEMAN DECORAT</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2800 TEAKWOOD LANE</AddressLine1Txt>
            <CityNm>PLANO</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75075</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>AUDIO VISUAL</ServicesDesc>
        <CompensationAmt>1708118</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>SNAP INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2772 DONALD DOUGLAS LOOP NORTH</AddressLine1Txt>
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            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>90406</ZIPCd>
          </USAddress>
        </ContractorAddress>
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        <CompensationAmt>672967</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BUZZFEED INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>111 E 18TH STREET 15TH FLOOR</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10003</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>SOCIAL MEDIA</ServicesDesc>
        <CompensationAmt>600000</CompensationAmt>
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      <CntrctRcvdGreaterThan100KCnt>22</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>2973</AllOtherContributionsAmt>
      <TotalContributionsAmt>2973</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES AND FEES</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>12534171</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12534171</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL MEETING</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>6746355</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6746355</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>EDUCATIONAL PROGRAMS</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>1324232</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1324232</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>PUBLICATIONS</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>227830</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>227830</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>AAO BULLETIN</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>118092</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>118092</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>20950680</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>874078</TotalRevenueColumnAmt>
        <ExclusionAmt>874078</ExclusionAmt>
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      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>851928</TotalRevenueColumnAmt>
        <ExclusionAmt>851928</ExclusionAmt>
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        <RealAmt>237825</RealAmt>
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      <LessRentalExpensesGrp>
        <RealAmt>258798</RealAmt>
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      <RentalIncomeOrLossGrp>
        <RealAmt>-20973</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>-20973</TotalRevenueColumnAmt>
        <ExclusionAmt>-20973</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>10985030</SecuritiesAmt>
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        <SecuritiesAmt>11047816</SecuritiesAmt>
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        <SecuritiesAmt>-62786</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-62786</TotalRevenueColumnAmt>
        <ExclusionAmt>-62786</ExclusionAmt>
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      <GrossSalesOfInventoryAmt>344649</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>185382</CostOfGoodsSoldAmt>
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        <TotalRevenueColumnAmt>159267</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>159267</UnrelatedBusinessRevenueAmt>
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        <Desc>MISCELLANEOUS INCOME</Desc>
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        <TotalRevenueColumnAmt>63449</TotalRevenueColumnAmt>
        <ExclusionAmt>63449</ExclusionAmt>
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      <OtherRevenueTotalAmt>63449</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>22818616</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>20832588</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>277359</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>1705696</ExclusionAmt>
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      <GrantsToDomesticOrgsGrp>
        <TotalAmt>82000</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>90000</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>2779542</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>1731923</TotalAmt>
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      <PensionPlanContributionsGrp>
        <TotalAmt>302849</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>510341</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>292073</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>290151</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>6506</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>279902</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>65068</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>589971</TotalAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>611289</TotalAmt>
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      <InformationTechnologyGrp>
        <TotalAmt>364826</TotalAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>181542</TotalAmt>
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      <TravelGrp>
        <TotalAmt>147147</TotalAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>4209055</TotalAmt>
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      <InterestGrp>
        <TotalAmt>13147</TotalAmt>
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      <DepreciationDepletionGrp>
        <TotalAmt>297658</TotalAmt>
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      <InsuranceGrp>
        <TotalAmt>180094</TotalAmt>
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      <OtherExpensesGrp>
        <Desc>CONSUMER ED. CAMPAIGN</Desc>
        <TotalAmt>6826378</TotalAmt>
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      <OtherExpensesGrp>
        <Desc>BOARD PROJ/COMMITTEES</Desc>
        <TotalAmt>2269681</TotalAmt>
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      <OtherExpensesGrp>
        <Desc>MEMBER COMMUNICATIONS</Desc>
        <TotalAmt>1000010</TotalAmt>
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      <OtherExpensesGrp>
        <Desc>COUNCIL ADMIN/PROJECTS</Desc>
        <TotalAmt>906091</TotalAmt>
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      <AllOtherExpensesGrp>
        <TotalAmt>72608</TotalAmt>
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      <TotalFunctionalExpensesGrp>
        <TotalAmt>24099852</TotalAmt>
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        <BOYAmt>874771</BOYAmt>
        <EOYAmt>1356757</EOYAmt>
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        <EOYAmt>83852</EOYAmt>
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        <EOYAmt>237644</EOYAmt>
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        <EOYAmt>111148</EOYAmt>
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        <EOYAmt>37789965</EOYAmt>
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        <EOYAmt>1161149</EOYAmt>
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      <MortgNotesPyblScrdInvstPropGrp>
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        <EOYAmt>0</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>8052223</BOYAmt>
        <EOYAmt>5363712</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>33975290</BOYAmt>
        <EOYAmt>32343266</EOYAmt>
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      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>14364</BOYAmt>
        <EOYAmt>82987</EOYAmt>
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      <PermanentlyRstrNetAssetsGrp>
        <BOYAmt>67993</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </PermanentlyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>34057647</BOYAmt>
        <EOYAmt>32426253</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>42109870</BOYAmt>
        <EOYAmt>37789965</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-1281236</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-350158</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleC documentId="RetDoc1039700001">
      <SubstantiallyAllDuesNondedInd>0</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>0</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>0</AgreeCarryoverPriorYearInd>
      <DuesAssessmentsAmt>12534171</DuesAssessmentsAmt>
      <NonDeductibleLbbyngPltclCYAmt>420836</NonDeductibleLbbyngPltclCYAmt>
      <NonDedLbbyngPltclCyovAmt>73841</NonDedLbbyngPltclCyovAmt>
      <NonDeductibleLbbyngPltclTotAmt>494677</NonDeductibleLbbyngPltclTotAmt>
      <AggregateReportedDuesNtcAmt>204945</AggregateReportedDuesNtcAmt>
      <CarriedOverAmt>289732</CarriedOverAmt>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CYEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>4190</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>3560</OtherExpendituresAmt>
        <EndYearBalanceAmt>82987</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>261</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>4000</OtherExpendituresAmt>
        <EndYearBalanceAmt>82357</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>86398</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>4191</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>4493</OtherExpendituresAmt>
        <EndYearBalanceAmt>86096</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>1964</InvestmentEarningsOrLossesAmt>
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        <EndYearBalanceAmt>86398</EndYearBalanceAmt>
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        <EndYearBalanceAmt>88740</EndYearBalanceAmt>
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      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
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        <BookValueAmt>684000</BookValueAmt>
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      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>6811847</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>3772906</DepreciationAmt>
        <BookValueAmt>3038941</BookValueAmt>
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      <LeaseholdImprovementsGrp>
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        <DepreciationAmt>57888</DepreciationAmt>
        <BookValueAmt>31399</BookValueAmt>
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      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>700040</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>609908</DepreciationAmt>
        <BookValueAmt>90132</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>987346</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>584632</DepreciationAmt>
        <BookValueAmt>402714</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>4247186</TotalBookValueLandBuildingsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>22847570</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-350158</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>-350158</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>23197728</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>65068</InvestmentExpensesNotIncldAmt>
      <OtherRevenuesNotIncludedAmt>-444180</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>-379112</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>22818616</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>24478964</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>444180</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>444180</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>24034784</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>65068</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>65068</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>24099852</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>INCOME IS APPLIED TOWARD THE EXPENSES AND HONORARIUM FOR THE MERSHON LECTURE PRESENTED AT THE ANNUAL SESSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>RENTAL EXPENSES -258,798. COST OF GOODS SOLD -185,382.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>RENTAL EXPENSES 258,798. COST OF GOODS SOLD 185,382.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>AMERICAN DENTAL EDUCATION ASSOCIATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>28094 NETWORK PLACE</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60673</ZIPCd>
        </USAddress>
        <RecipientEIN>360724690</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>7000</CashGrantAmt>
        <PurposeOfGrantTxt>GENERAL SUPPORT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF MICHIGAN</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1011 N UNIVERSITY AVENUE</AddressLine1Txt>
          <CityNm>ANN ARBOR</CityNm>
          <StateAbbreviationCd>MI</StateAbbreviationCd>
          <ZIPCd>48109</ZIPCd>
        </USAddress>
        <RecipientEIN>386006309</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>75000</CashGrantAmt>
        <PurposeOfGrantTxt>GENERAL SUPPORT</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>2</Total501c3OrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FACULTY FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>90000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AMERICAN ASSOCIATION OF ORTHODONTISTS PROVIDES SPONSORSHIPS AND SIMILAR FUNDING TO ESTABLISHED PROGRAMS AND ORGANIZATIONS. ANNUAL CONTRIBUTIONS TO THE GRADUATE ORTHODONTICS RESIDENTS PROGRAM (GORP) SPONSOR A 3 DAY EVENT WHICH INTRODUCES RESIDENTS TO THE PROGRAMS AND SERVICES OF THE AAO AND BUILDS RELATIONSHIPS BETWEEN THE VARIOUS ORTHODONTIC PROGRAMS AND THE STUDENTS IN THEM. THE CONTRIBUTION IS USED TO FUND SPACE RENTAL FOR THE MEETING, MEALS AND SOCIAL EVENTS FOR ATTENDEES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
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      <TravelForCompanionsInd>X</TravelForCompanionsInd>
      <ClubDuesOrFeesInd>X</ClubDuesOrFeesInd>
      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
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        <PersonNm>LYNNE THOMAS GORDON</PersonNm>
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        <OtherCompensationFilingOrgAmt>10528</OtherCompensationFilingOrgAmt>
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        <DeferredCompensationFlngOrgAmt>16500</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CASANDRA SCALES</PersonNm>
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        <PersonNm>JULIE SUTTER</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KATIE MASSEN</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KEVIN DILLARD</PersonNm>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SCOTT CANT</PersonNm>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ERIC MUTRUX</PersonNm>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>176820</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SEAN MURPHY</PersonNm>
        <TitleTxt>ASSOCIATE GENERAL COUNSEL</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <DeferredCompensationFlngOrgAmt>18475</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>9946</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>158512</TotalCompensationFilingOrgAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>BOARD MEMBERS AND OFFICERS MAY BE REIMBURSED FOR THE TRAVEL OF A SPOUSE OR GUEST TO MEETINGS SPECIFIED IN THE POLICY. GENERALLY, BOARD AND COMMITTEE MEETINGS ARE NOT ELIGIBLE FOR REIMBURSEMENT OF COMPANION TRAVEL. FOR SPECIFIED MEETINGS INVOLVING FLIGHTS OVER 2 HOURS, OFFICERS MAY BE REIMBURSED FOR THE NEXT CLASS ABOVE COACH SUBJECT TO THE WRITTEN TRAVEL POLICY.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE IS COMPOSED OF FIVE MEMBERS: THE PRESIDENT, THE PRESIDENT-ELECT, THE SECRETARY-TREASURER AND THE TWO MOST SENIOR TRUSTEES. THIS COMMITTEE SHALL HAVE THE POWER TO ACT FOR THE FULL BOARD OF TRUSTEES IN THE INTERIM BETWEEN SESSIONS OF THE BOARD, AND IT SHALL REPORT SUCH ACTIONS TO THE BOARD AT ITS NEXT MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>AAO HAS A TOTAL OF 19,332 MEMBERS (INCLUDING APPROXIMATELY 4,700 INTERNATIONAL MEMBERS.)</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE HOUSE OF DELEGATES AND THE BOARD OF TRUSTEES ARE CHOSEN BY MEMBERS OF THE AAO CONSTITUENT ORGANIZATIONS. MEMBERS OF THE CONSTITUENT ORGANIZATIONS ARE ALSO MEMBERS OF THE AAO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS PREPARED BY OUTSIDE ACCOUNTANTS, BASED UPON INFORMATION PROVIDED BY AAO. THE FORM 990 IS REVIEWED BY THE ACCOUNTING MANAGER AND THE VP OF FINANCE. THE 990 IS PROVIDED TO THE BOARD OF TRUSTEES BEFORE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ANNUALLY, ALL BOARD MEMBERS SIGN A CONFLICT OF INTEREST POLICY ACKNOWLEDGEMENT, WHICH ASKS THEM TO LIST ANY POTENTIAL CONFLICT. ALL DISCLOSED CONFLICTS ARE EXAMINED BY THE APPROPRIATE PERSON. IN ADDITION, EACH BOARD MEETING INCLUDES INQUIRY AS TO WHETHER THERE ARE ANY POTENTIAL CONFLICTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>COAC (CENTRAL OFFICE ADVISORY COMMITTEE) MADE UP OF VOTING MEMBERS OF THE BOT (BOARD OF TRUSTEES) DETERMINES THE CHIEF EXECUTIVE OFFICER'S COMPENSATION. THEY DO A WRITTEN EVALUATION BASED ON A BOARD SOURCE EXECUTIVE DIRECTOR/CHIEF STAFF FORM. INFORMATION FROM SALARY SURVEYS BY ASAE, ASSOCIATION FORUM, CEO UPDATE AND NON PROFIT SALARY SURVEY INDEPENDENT OF THE ASAE AND ASSOCIATION FORUM ARE PROVIDED TO THE COAC. FOR COMPENSATION OTHER THAN THE CHIEF EXECUTIVE OFFICER, THE INDEPENDENT SOURCE (AAIMS) IS USED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>SUMMARY FINANCIAL STATEMENTS ARE PUBLISHED ON THE AAO MEMBERS' WEBSITE. BYLAWS AND ALL POLICIES ARE AVAILABLE UPON REQUEST AND ARE POSTED ON THE AAO MEMBERS' WEBSITE. FINANCIAL INFORMATION IS UPDATED WITH D&amp;B ANNUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, SECTION A, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>THROUGH ITS WHOLLY-OWNED SUBSIDIARY, AAO SERVICES, INC., THE AAO PROVIDES ASSOCIATION MANAGEMENT SERVICES TO TWO RELATED ENTITIES. THESE SERVICES ARE PROVIDED ON A SHARED STAFF MODEL WITH AAO STAFF MEMBERS FILLING KEY ROLES IN THE ASSOCIATION MANAGEMENT SERVICES. A PORTION OF THE SALARY AND BENEFITS REPORTED FOR SOME HIGHLY COMPENSATED EMPLOYEES ARE PAID BY AAO SERVICES, INC. AS COMPENSATION FOR ASSOCIATION MANAGEMENT DUTIES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>AAO DISASTER RELIEF FUND</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>401 N LINDBERGH BOULEVARD</AddressLine1Txt>
          <CityNm>ST LOUIS</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63141</ZIPCd>
        </USAddress>
        <EIN>134305408</EIN>
        <PrimaryActivitiesTxt>AWARD GRANTS</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MO</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AAO DONATED ORTHODONTIC SERVICES</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>401 N LINDBERGH BOULEVARD</AddressLine1Txt>
          <CityNm>ST LOUIS</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63141</ZIPCd>
        </USAddress>
        <EIN>465292569</EIN>
        <PrimaryActivitiesTxt>PROVIDE PRO BONO ORTHODONTIC TREATMENT FOR LOW-INCOME CHILDREN</PrimaryActivitiesTxt>
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        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
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          <CityNm>ST LOUIS</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63141</ZIPCd>
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        <EIN>431689930</EIN>
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          <CityNm>ST LOUIS</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63141</ZIPCd>
        </USAddress>
        <EIN>431709728</EIN>
        <PrimaryActivitiesTxt>INSURANCE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MO</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>AAO</BusinessNameLine1Txt>
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        <EntityTypeTxt>C</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>1887242</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>993935</ShareOfEOYAssetsAmt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>1</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>1</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>1</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AAO SERVICES INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>A</TransactionTypeTxt>
        <InvolvedAmt>82500</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>CASH</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AAO DONATED ORTHODONTIC SERVICES</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>B</TransactionTypeTxt>
        <InvolvedAmt>3455</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>IN-KIND (COST)</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AAO SERVICES INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>N</TransactionTypeTxt>
        <InvolvedAmt>141210</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>CASH</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AAO SERVICES INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>O</TransactionTypeTxt>
        <InvolvedAmt>257436</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>CASH</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AAO SERVICES INC AAO DONATED ORTHODONTIC SERVICES</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>Q</TransactionTypeTxt>
        <InvolvedAmt>1710559</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>CASH</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>