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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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        <CurrentTaxYearAmt>16894</CurrentTaxYearAmt>
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        <ExplanationTxt>THE ORGANIZATION CHANGED ITS FISCAL YEAR-END FROM AUGUST 31 TO DECEMBER 31 DURING 2024. SCHEDULE A, PART II, COLUMNS 2021-2023 ARE FOR THE YEARS ENDED AUGUST 31, 2022 THROUGH AUGUST 31, 2024. SCHEDULE A, PART II, COLUMN 2024 IS FOR THE SHORT PERIOD SEPTEMBER 1, 2024 THROUGH DECEMBER 31, 2024.</ExplanationTxt>
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      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>2067478</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>CURRENCY TRANSLATION GAIN/LOSS 2,051.</ExplanationTxt>
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        <EmployeeCnt>5</EmployeeCnt>
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      <ForeignCorpOwnershipInd>1</ForeignCorpOwnershipInd>
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      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
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        <ExplanationTxt>THE DRAFT FORM 990 IS PREPARED BY EXTERNAL CONSULTANTS AND REVIEWED BY THE EXECUTIVE DIRECTOR AND THE BOARD FINANCIAL COMMITTEE FOR ACCURACY BEFORE FORMAL SUBMISSION. FORM 990 IS SHARED WITH THE BOARD PRIOR TO FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>AS PER THE CONFLICT OF INTEREST POLICY, ALL PERSONS OF INTEREST ANNUALLY COMPLETE A DISCLOSURE STATEMENT. THESE DISCLOSURES ARE SUMMARIZED AND REVIEWED BY THE BOARD, WHICH DETERMINES WHETHER BOARD DIRECTORS ARE FREE OF CONFLICTS OF INTEREST AND ELIGIBLE TO SERVE AS VOTING MEMBERS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS CONDUCTS AN ANNUAL REVIEW OF COMPENSATION FOR ALL OFFICERS. THIS PROCESS INVOLVES THE USE OF INDEPENDENT COMPARABILITY DATA FROM SIMILAR NON-PROFIT RESEARCH AND EDUCATIONAL INSTITUTES WITHIN THE WASHINGTON, D.C. AND INTERNATIONAL SECTORS. THE DELIBERATION IS DOCUMENTED IN MEETING MINUTES TO ENSURE CONTEMPORANEOUS SUBSTANTIATION OF THE DECISION. THIS PROCESS WAS LAST UNDERTAKEN IN 2025.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>THE NEGOTIATION STRATEGIES INSTITUTE MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON WRITTEN REQUEST AT ITS PRIMARY ADMINISTRATIVE OFFICE IN WASHINGTON, DC, OR VIA ELECTRONIC DELIVERY UPON VERIFIED INQUIRY.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
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          <CityNm>JERUSALEM</CityNm>
          <CountryCd>IS</CountryCd>
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