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      <AuditCommitteeInd>true</AuditCommitteeInd>
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        <CurrentTaxYearMinus2YearsAmt>194</CurrentTaxYearMinus2YearsAmt>
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        <ContributorBusinessName>
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        <InvestmentEarningsOrLossesAmt>178</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>5000</GrantsOrScholarshipsAmt>
        <OtherExpendituresAmt>1251780</OtherExpendituresAmt>
        <EndYearBalanceAmt>599174</EndYearBalanceAmt>
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      <RevenueSubtotalAmt>1024432</RevenueSubtotalAmt>
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      <ExpensesSubtotalAmt>560350</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>560350</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt X, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE, IUCN-US IS EXEMPT FROM FEDERAL TAXES ON INCOME OTHER THAN ON UNRELATED BUSINESS INCOME. AT DECEMBER 31, 2018, NO PROVISION WAS MADE AS IUCN-US HAD NO NET UNRELATED BUSINESS INCOME. MANAGEMENT ANNUALLY REVIEWS ITS TAX POSITIONS AND HAS DETERMINED THAT THERE ARE NO MATERIAL UNCERTAIN TAX POSITIONS THAT REQUIRE RECOGNITION ON THE FINANCIAL STATEMENTS.</ExplanationTxt>
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        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>CONSERVATION</SpecificServicesProvidedTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>CONSERVATION</SpecificServicesProvidedTxt>
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      </AccountActivitiesOutsideUSGrp>
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      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
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      <TotalSpentAmt>484279</TotalSpentAmt>
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        <RegionTxt>Europe</RegionTxt>
        <PurposeOfGrantTxt>CONSERVATION</PurposeOfGrantTxt>
        <CashGrantAmt>233350</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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        <RegionTxt>East Asia and Pacific</RegionTxt>
        <PurposeOfGrantTxt>CONSERVATION</PurposeOfGrantTxt>
        <CashGrantAmt>250929</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
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      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
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        <FormAndLineReferenceDesc>Pt I Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>IUCN-US ENTERS INTO A GRANT AGREEMENT WITH EACH GRANTEE. THAT AGREEMENT SPECIFIES THE OBLIGATIONS OF THE GRANTEE AS TO THE USE OF THE GRANT, ESTABLISHMENT OF A PERFORMANCE SCHEDULE, NOTIFICATIONS OF DEVIATION FROM THE PERFORMANCE SCHEDULE, FINANCIAL ACCOUNTING, FINANCIAL AND SUBSTANTIVE REPORTING, ACTIVITIES FOR WHICH THE GRANTEE MAY NOT USE THE FUNDS, DEFAULT AND REMEDIES, ETC. IUCN-US RECEIVES BOTH FINANCIAL AND SUBSTANTIVE REPORTS AS SET FORTH IN THE GRANT AGREEMENT, AND IS IN PERIODIC COMMUNICATION PERSONALLY WITH THE DESIGNATED CONTACT FOR THE GRANTEE ORGANIZATION CONCERNING THE IMPLEMENTATION OF THE PROJECT AND ANY ISSUES.</ExplanationTxt>
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      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
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        <CompensationBasedOnRltdOrgsAmt>157632</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
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        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>22295</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>179927</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="18007482">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>CEO FORWARDS EMAIL OF FORM 990 TO ENTIRE BOARD OF DIRECTORS AFTER RECEIVED FROM ACCOUNTANT, PRIOR TO SIGNING AND MAILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL CANDIDATES AND CURRENT MEMBERS OF THE BOARD OF DIRECTORS ARE REQUIRED TO DISCLOSE ANY POTENTIAL CONFLICTS OF INTERESTS AT ITS ANNUAL MEETING OF THE BOARD OF DIRECTORS. THIS INFORMATION IS RECORDED IN THE MINUTES OF THE MEETINGS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL AVAILABLE UPON REQUEST.</ExplanationTxt>
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          <CityNm>WASHINGTON</CityNm>
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        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
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      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>true</GiftGrntOrCapContriToOthOrgInd>
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      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
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      <PerformOfServicesByOtherOrgInd>true</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
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</Return>