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        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>9375</ExclusionAmt>
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      <OtherRevenueTotalAmt>9375</OtherRevenueTotalAmt>
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        <TotalRevenueColumnAmt>999626</TotalRevenueColumnAmt>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>34687</ExclusionAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>40960</ProgramServicesAmt>
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        <TotalAmt>13420</TotalAmt>
        <ProgramServicesAmt>13420</ProgramServicesAmt>
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        <ProgramServicesAmt>187644</ProgramServicesAmt>
        <ManagementAndGeneralAmt>125096</ManagementAndGeneralAmt>
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      <FeesForServicesLegalGrp>
        <TotalAmt>1631</TotalAmt>
        <ManagementAndGeneralAmt>1631</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
        <TotalAmt>7140</TotalAmt>
        <ManagementAndGeneralAmt>7140</ManagementAndGeneralAmt>
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        <TotalAmt>696</TotalAmt>
        <ProgramServicesAmt>696</ProgramServicesAmt>
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      <AdvertisingGrp>
        <TotalAmt>19308</TotalAmt>
        <ProgramServicesAmt>19308</ProgramServicesAmt>
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        <TotalAmt>11603</TotalAmt>
        <ProgramServicesAmt>5838</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5765</ManagementAndGeneralAmt>
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      <InformationTechnologyGrp>
        <TotalAmt>9305</TotalAmt>
        <ManagementAndGeneralAmt>9305</ManagementAndGeneralAmt>
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      <TravelGrp>
        <TotalAmt>13523</TotalAmt>
        <ProgramServicesAmt>8836</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4687</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>365974</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3121</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>1592</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2085</ManagementAndGeneralAmt>
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        <Desc>HONORARIUM</Desc>
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        <ProgramServicesAmt>37541</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>3330</ManagementAndGeneralAmt>
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        <EOYAmt>6463</EOYAmt>
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        <EOYAmt>574753</EOYAmt>
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        <BOYAmt>527401</BOYAmt>
        <EOYAmt>581216</EOYAmt>
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      <NoDonorRestrictionNetAssetsGrp>
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      <DonorRestrictionNetAssetsGrp>
        <EOYAmt>10480</EOYAmt>
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        <BOYAmt>1239828</BOYAmt>
        <EOYAmt>1499364</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1767229</BOYAmt>
        <EOYAmt>2080580</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>121570</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>137966</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
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        <CurrentTaxYearMinus2YearsAmt>50000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>87447</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>89340</CurrentTaxYearAmt>
        <TotalAmt>279287</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>140622</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>887550</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>806577</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>865762</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>875599</CurrentTaxYearAmt>
        <TotalAmt>3576110</TotalAmt>
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      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>140622</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>940050</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>856577</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>953209</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>964939</CurrentTaxYearAmt>
        <TotalAmt>3855397</TotalAmt>
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      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
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        <TotalAmt>0</TotalAmt>
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      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>3855397</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>2182</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4549</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>18005</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>33853</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25312</CurrentTaxYearAmt>
        <TotalAmt>83901</TotalAmt>
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      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>2182</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4549</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>18005</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>33853</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25312</CurrentTaxYearAmt>
        <TotalAmt>83901</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus3YearsAmt>5311</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>14370</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>14602</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9375</CurrentTaxYearAmt>
        <TotalAmt>43658</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>142804</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>949910</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>888952</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1001664</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>999626</CurrentTaxYearAmt>
        <TotalAmt>3982956</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.96800</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.97440</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.02110</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.01650</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME - 2016 AMOUNT: $ 5,311. 2017 AMOUNT: $ 14,370. LATE FEES - 2018 AMOUNT: $ 7,375. 2019 AMOUNT: $ 9,375. RECOVERY OF BAD DEBT - 2018 AMOUNT: $ 7,227.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <TotalBookValueLandBuildingsAmt>0</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1137592</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>137966</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>137966</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>999626</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>999626</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>878056</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>878056</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>878056</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES UNDER THE PROVISIONS OF SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND APPLICABLE STATE TAX STATUES. THE ASSOCIATION'S INCOME TAX RETURNS ARE SUBJECT TO REVIEW AND EXAMINATION BY FEDERAL AND STATE AUTHORITIES. THE ASSOCIATION IS NOT AWARE OF ANY ACTIVITIES THAT WOULD JEOPARDIZE ITS TAX-EXEMPT STATUS. THE ASSOCIATION IS NOT AWARE OF ANY UNCERTAIN TAX POSITIONS IN THE ACCOMPANYING FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS LOCATED IN REGION</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>10460</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS LOCATED IN REGION</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>2960</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>13420</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>13420</TotalSpentAmt>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>ASSISTANCE FOR MEMBERS' COSTS TO TRAVEL TO THE ANNUAL CONFERENCE</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <RecipientCnt>20</RecipientCnt>
        <CashGrantAmt>10460</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>ASSISTANCE FOR MEMBERS' COSTS TO TRAVEL TO THE ANNUAL CONFERENCE</TypeOfAssistanceTxt>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>2960</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL APPLICANTS MUST BE A CURRENT ARO MEMBER AT THE TIME OF APPLICATION AND AT THE TIME OF THE CONFERENCE. ARO MONITORS THE USE OF GRANT FUNDS BY VERIFYING GRANTEES' ATTENDANCE AND TRAVEL COSTS FOR THE MEETING. THE BOARD OF DIRECTORS APPROVES THE SELECTION OF GRANT RECIPIENTS AND DISBURSEMENT OF GRANT FUNDS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENDITURES ARE ACCOUNTED FOR USING THE ACCRUAL METHOD OF ACCOUNTING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III ACCOUNTING METHOD:</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ASSISTANCE FOR MEMBERS' COSTS TO TRAVEL TO THE ANNUAL CONFERENCE</GrantTypeTxt>
        <RecipientCnt>78</RecipientCnt>
        <CashGrantAmt>40960</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL APPLICANTS MUST BE A CURRENT ARO MEMBER AT THE TIME OF APPLICATION AND AT THE TIME OF THE CONFERENCE. ARO MONITORS THE USE OF GRANT FUNDS BY VERIFYING GRANTEES' ATTENDANCE AND TRAVEL COSTS FOR THE MEETING. THE BOARD OF DIRECTORS APPROVES THE SELECTION OF GRANT RECIPIENTS AND DISBURSEMENT OF GRANT FUNDS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ARO CONTRACTED WITH TALLEY MANAGEMENT GROUP, INC. TO PERFORM MANAGEMENT DUTIES. MANAGEMENT SERVICES INCLUDE, BUT ARE NOT LIMITED TO, PLANNING AND EXECUTING BUDGETS, FINANCIAL OPERATIONS, MEMBERSHIP SERVICES AND COORDINATING EVENTS. TALLEY MANAGEMENT GROUP, INC. WAS PAID $312,740 IN 2019 FOR THESE SERVICES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ARO SHALL HAVE ONE CLASS OF VOTING MEMBER: REGULAR MEMBER. REGULAR MEMBERS HAVE THE RIGHT TO VOTE AND HOLD OFFICE. REGULAR MEMBERS ARE ANY PERSON WITH ESTABLISHED COMPETENCE IN RESEARCH IN THE CLINICAL AND/OR BASIC SCIENCES AS THEY RELATE TO OTOLARYNGOLOGY, WHO EXHIBITS AN INTEREST IN SUPPORTING THE GOALS OF ARO, AND WHO HAS DEMONSTRATED THESE QUALITIES BY HIS/HER ACTIONS AND SCIENTIFIC PUBLICATIONS, IS ELIGIBLE FOR REGULAR MEMBERSHIP. TO BECOME A REGULAR MEMBER, A CANDIDATE MUST BE PROPOSED FOR MEMBERSHIP BY TWO MEMBERS IN GOOD STANDING. THE MEMBERSHIP COMMITTEE SHALL BE FURNISHED WITH THE CANDIDATE'S APPLICATION, AND CURRICULUM VITAE (OR OTHER EVIDENCE OF RESEARCH INTEREST AND COMPETENCE). THERE SHALL BE NO SPECIFIC REQUIREMENTS REGARDING MEDICAL BOARD CERTIFICATION OR ACADEMIC DEGREES. ARO HAS THREE CLASSES OF MEMBERS THAT ARE NOT ELIGIBLE TO VOTE OR HOLD OFFICE: (1) ASSOCIATE MEMBER, (2) SENIOR MEMBER, (3) HONORARY MEMBER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COUNCIL MEMBERS (BOARD MEMBERS) ARE ELECTED BY A MAJORITY OF VOTES RETURNED FROM REGULAR MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGES TO BYLAWS MUST BE APPROVED BY A MAJORITY OF VOTES RETURNED FROM REGULAR MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM. THE EXECUTIVE DIRECTOR AND THE MANAGEMENT COMPANY ACCOUNTING DEPARTMENT WILL REVIEW AND APPROVE THE FORM 990 BEFORE IT IS FILED WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST. AT THIS TIME NO FORMAL CONFLICT OF INTEREST POLICY IS IN PLACE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>