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      <NetUnrlzdGainsLossesInvstAmt>11510</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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      <OnlyInHouseLobbyingInd>1</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>0</AgreeCarryoverPriorYearInd>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
      <TotalBookValueLandBuildingsAmt>0</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>886167</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>11510</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>11510</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>874657</RevenueSubtotalAmt>
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      <RevenueNotReportedFinclStmtAmt>1682</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>876339</TotalRevenuePerForm990Amt>
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      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>799759</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>1682</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>1682</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>801441</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY IS EXEMPT FROM THE PAYMENT OF INCOME TAXES ON ITS EXEMPT ACTIVITIES UNDER THE PROVISIONS OF SECTION 501(C)(6) OF THE INTERNAL REVENUE CODE. UNDER THESE PROVISIONS, NO TAX IS IMPOSED ON ANY INCOME RELATED TO THE SOCIETY'S TAX-EXEMPT PURPOSE. THE SOCIETY HAS DETERMINED THAT IT DOES NOT HAVE ANY MATERIAL UNRECOGNIZED TAX BENEFITS OR OBLIGATIONS AS OF SEPTEMBER 30, 2023 AND 2022. THE SOCIETY IS SUBJECT TO ROUTINE AUDITS BY TAXING JURISDICTIONS; HOWEVER, THERE ARE CURRENTLY NO AUDITS FOR ANY TAX PERIODS IN PROGRESS. THE SOCIETY'S FEDERAL AND STATE INCOME TAX RETURNS ARE SUBJECT TO EXAMINATION BY THE INTERNAL REVENUE SERVICE AND STATE TAX AUTHORITIES, GENERALLY FOR A PERIOD OF THREE YEARS AFTER THE RETURNS ARE FILED.</ExplanationTxt>
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    </IRS990ScheduleD>
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      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>990 PAGE 8 LINE 5</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD IS A VOLUNTEER BOARD AND IS NOT COMPENSATED. THE SOCIETY HAS NO EMPLOYEES AND CONTRACTS WITH A THIRD PARTY MANAGEMENT COMPANY TO PERFORM THE ADMINISTRATIVE AND MANAGERIAL FUNCTIONS TRADITIONALLY PERFORMED BY EMPLOYEES. THE EXECUTIVE DIRECTOR IS AN EMPLOYEE OF THE MANAGEMENT COMPANY AND IS ONLY COMPENSATED BY THE MANAGEMENT COMPANY AT ITS FULL DISCRETION. THE SOCIETY HAS NO CONTROL OVER THAT COMPENSATION. THE BOARD EVALUATES THE WORK OF THE MANAGEMENT COMPANY AND REVIEWS THE CONTRACT FEE PAID AT LEAST ANNUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD SELECTED A MANAGEMENT COMPANY TO PROVIDE STAFFING, LEASED SPACE, ETC. TO CONDUCT ITS PROGRAMS AND PERFORM GENERAL DUTIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS MEMBERS WHO ARE INTERESTED IN THE ARBORICULTURAL CONSULTING PROFESSION. THEY PAY A MEMBERSHIP FEE. THE FIVE CLASSES OF MEMBERS ARE MEMBER, REGISTERED MEMBER, PRIVILEGED MEMBER, HONORARY LIFE MEMBER, AND HONORARY MEMBER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS AND REGISTERED MEMBERS VOTE TO ELECT THE BOARD OF DIRECTORS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERSHIP MUST APPROVE SIGNIFICANT CHANGES TO THE ARTICLES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE 990 IS GIVEN TO THE EXECUTIVE DIRECTOR AND THE BOARD OF DIRECTORS FOR REVIEW BEFORE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFLICT OF INTEREST POLICIES AND ISSUES ARE DISCUSSED AT EACH BOARD MEETING AND DOCUMENTED IN THE BOARD MINUTES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS SELECTED A MANAGEMENT COMPANY FOR THE SOCIETY AFTER ISSUING A REQUEST OF PROPOSAL AND CAREFULLY EVALUATING PROPOSALS THAT IT RECEIVES. THE BOARD CONDUCTS AN ANNUAL REVIEW. MANAGEMENT FEES ARE SET DURING THE ANNUAL BUDGETING PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FORM 990 AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>990 PAGE 12 LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS OF THE COMMITTEE HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
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</Return>
