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        <PersonNm>J MATTHEW DAVIDSON</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <PersonNm>PAUL J ELSTON</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <PersonNm>JOHN ERNST</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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        <PersonNm>JOSHUA GINSBERG</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <PersonNm>JEREMY GUTH</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>3.00</AverageHoursPerWeekRltdOrgRt>
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        <PersonNm>HOLLY HEGENER</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <PersonNm>SAMUEL G HUBER</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <PersonNm>SAMUEL W LAMBERT III</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>3.00</AverageHoursPerWeekRltdOrgRt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>YUKI MOORE LAURENTI</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>W BARNABAS MCHENRY</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KATHERINE O ROBERTS</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>3.00</AverageHoursPerWeekRltdOrgRt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>AMELIA SALZMAN</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>HUME R STEYER</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PATRICIA F SULLIVAN</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DOUGLAS BATESON</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH SMITH</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTOPHER ELLIMAN</PersonNm>
        <TitleTxt>PRESIDENT &amp; CEO</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PETER HOWELL</PersonNm>
        <TitleTxt>EXECUTIVE VP, CONSERVATION CAPITAL</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ROBERT K ANDERBERG</PersonNm>
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        <ReportableCompFromRltdOrgAmt>200755</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALICE GLEASON</PersonNm>
        <TitleTxt>SENIOR VP, FINANCE &amp; CFO</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOSEPH HOLLAND</PersonNm>
        <TitleTxt>ASSISTANT TREASURER &amp; CONTROLLER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SAMAYLA DEUTCH</PersonNm>
        <TitleTxt>VP &amp; ASSOCIATE GENERAL COUNSEL</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>TALLY BLUMBERG</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ERIK KULLESEID</PersonNm>
        <TitleTxt>VP, DIR. ALLIANCE FOR NYS PARKS</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>TERRENCE NOLAN</PersonNm>
        <TitleTxt>SENIOR VP, CONSERVATION TRANSACTIONS</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JENNIFER MELVILLE</PersonNm>
        <TitleTxt>VP, CONSERVATION GRANTS &amp; LOANS</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>NATE BERRY</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
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        <PersonNm>JEAN CHEN</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN BARBARISI</PersonNm>
        <TitleTxt>ASST. SECRETARY &amp; DIR. OF ADMIN.</TitleTxt>
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        <BusinessCd>900099</BusinessCd>
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      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
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        <ProgramServicesAmt>302646</ProgramServicesAmt>
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        <ProgramServicesAmt>36686</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11467</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>14418</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>465437</ProgramServicesAmt>
        <ManagementAndGeneralAmt>16930</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>25497</ProgramServicesAmt>
        <ManagementAndGeneralAmt>7235</ManagementAndGeneralAmt>
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        <TotalAmt>33206</TotalAmt>
        <ProgramServicesAmt>21385</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11821</ManagementAndGeneralAmt>
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      <InformationTechnologyGrp>
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        <ProgramServicesAmt>24929</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3622</ManagementAndGeneralAmt>
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        <TotalAmt>5870</TotalAmt>
        <ProgramServicesAmt>5870</ProgramServicesAmt>
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        <ProgramServicesAmt>40895</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6760</ManagementAndGeneralAmt>
        <FundraisingAmt>529</FundraisingAmt>
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      <PreservationOpenSpaceInd>X</PreservationOpenSpaceInd>
      <HistoricLandAreaInd>X</HistoricLandAreaInd>
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        <ExplanationTxt>THE ORGANIZATION HAD NO UNCERTAIN TAX POSITIONS AS OF DECEMBER 31, 2014 AND 2013 IN ACCORDANCE WITH ACCOUNTING STANDARDS CODIFICATION ("ASC") TOPIC 740, "INCOME TAXES," WHICH PROVIDES STANDARDS FOR ESTABLISHING AND CLASSIFYING ANY TAX PROVISIONS FOR UNCERTAIN TAX POSITIONS. WITH FEW EXCEPTIONS, THE ORGANIZATION IS NO LONGER SUBJECT TO FEDERAL OR STATE AND LOCAL INCOME TAX EXAMINATIONS BY TAX AUTHORITIES FOR THE YEAR ENDED DECEMBER 31, 2011 AND PRIOR YEARS.</ExplanationTxt>
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          <StateAbbreviationCd>NY</StateAbbreviationCd>
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        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>MALCOLM GORDON CHARITABLE FUND - ENVIRONMENTAL EDUCATION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CORBIN HILL FOOD PROJECT</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>119 WEST 120TH ST</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10027</ZIPCd>
        </USAddress>
        <RecipientEIN>461206478</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>108674</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>CITIZEN ACTION GROUP SUPPORT GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>EARTH MATTER NY INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>179 RIVINGTON STREET 4A</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10002</ZIPCd>
        </USAddress>
        <RecipientEIN>270625845</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>8384</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>CITIZEN ACTION GROUP SUPPORT GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>NEW YORK CITY ENERGY EFFICIENCY CORPORATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1359 BROADWAY 19TH FLOOR</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10018</ZIPCd>
        </USAddress>
        <RecipientEIN>273731338</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>CITIZEN ACTION GROUP SUPPORT GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>ESSEX FARM INSTITUTE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>2503 NY 22</AddressLine1Txt>
          <CityNm>ESSEX</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>12936</ZIPCd>
        </USAddress>
        <RecipientEIN>471368012</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>57836</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>CITIZEN ACTION GROUP SUPPORT GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>FRIENDS OF FAHNESTOCK &amp; HUDSON HIGHLANDS STATE PARKS</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 194</AddressLine1Txt>
          <CityNm>COLD SPRING</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10516</ZIPCd>
        </USAddress>
        <RecipientEIN>260792530</RecipientEIN>
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        <CashGrantAmt>12000</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>MALCOLM GORDON CHARITABLE FUND - ENVIRONMENTAL EDUCATION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>HUDSON HIGHLANDS NATURE MUSEUM</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>120 MUSER DR</AddressLine1Txt>
          <CityNm>CORNWALL</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>12518</ZIPCd>
        </USAddress>
        <RecipientEIN>141470087</RecipientEIN>
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        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>MALCOLM GORDON CHARITABLE FUND - ENVIRONMENTAL EDUCATION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>LICAN</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>NEW YORK AVE LOWNDES AVE</AddressLine1Txt>
          <CityNm>HUNTINGTON STATION</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11746</ZIPCd>
        </USAddress>
        <RecipientEIN>112687442</RecipientEIN>
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        <CashGrantAmt>23864</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>CITIZEN ACTION GROUP SUPPORT GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MOHONK PRESERVE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>3197 ROUTE 44 55</AddressLine1Txt>
          <CityNm>GARDINER</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>12525</ZIPCd>
        </USAddress>
        <RecipientEIN>141609484</RecipientEIN>
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        <CashGrantAmt>7000</CashGrantAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>MALCOLM GORDON CHARITABLE FUND - ENVIRONMENTAL EDUCATION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>PRESERVATION LEAGUE OF NYS</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>44 CENTRAL AVE</AddressLine1Txt>
          <CityNm>ALBANY</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>12206</ZIPCd>
        </USAddress>
        <RecipientEIN>237379938</RecipientEIN>
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        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>MCHENRY HUDSON RIVER VALLEY AWARD</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>RONDOUT VALLEY GROWERS ASSOCIATION</BusinessNameLine1Txt>
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          <AddressLine1Txt>PO BOX 867</AddressLine1Txt>
          <CityNm>STONE RIDGE</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
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        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>MCHENRY HUDSON RIVER VALLEY AWARD</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
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          <BusinessNameLine1Txt>SHAKER HERITAGE SOCIETY</BusinessNameLine1Txt>
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        <USAddress>
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          <CityNm>ALBANY</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
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      <RecipientTable>
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        <PurposeOfGrantTxt>CITIZEN ACTION GROUP SUPPORT GRANT</PurposeOfGrantTxt>
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      <RecipientTable>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTEES EXECUTE A WRITTEN AGREEMENT WHICH REQUIRES THEM TO SUBMIT WRITTEN REPORTS TO OSI FOR THE PERIOD OF THE AGREEMENT.</ExplanationTxt>
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    </IRS990ScheduleI>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>TERRENCE NOLAN</PersonNm>
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        <DeferredCompensationFlngOrgAmt>52</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>1770</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>803</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>27168</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>4747</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>160552</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <PersonNm>STEPHEN CLEARMAN</PersonNm>
        </NameOfInterested>
        <RelationshipDescriptionTxt>SEE PART V</RelationshipDescriptionTxt>
        <TransactionAmt>208750</TransactionAmt>
        <TransactionDesc>SEE PART V</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE L, PART IV:</FormAndLineReferenceDesc>
        <ExplanationTxt>STEPHEN CLEARMAN, AN OSI/OSILT BOARD MEMBER, IS ALSO A MANAGING PARTNER OF KINDERHOOK, L.P. IN WHICH OSI/OSILT IS AN INVESTOR. MANAGEMENT FEES PAID BY OSI/OSILT TO KINDERHOOK, L.P. DURING THE YEAR ENDED DECEMBER 31, 2014 AMOUNTED TO $208,750.</ExplanationTxt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING 2013, SEVERAL OVERLAPPING PROGRAMS OF THE OPEN SPACE INSTITUTE, INC. ("OSI") WERE TRANSFERRED TO THE OPEN SPACE INSTITUTE LAND TRUST, INC. ("OSILT") A SUPPORTING ORGANIZATION OF OSI, TO CONSOLIDATE SIMILAR PROGRAMS INTO ONE ENTITY WHICH RESULTED IN THE TRANSFER OF $3,356,855 OF NET ASSETS FROM ONE ORGANIZATION TO THE OTHER. THE CORRESPONDING REVENUE AND EXPENSES RELATE TO THOSE TRANSFERRED PROGRAMS ARE NOW BEING REPORTED ON THE FORM 990 OF OSILT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>OUR 990 IS PREPARED BY AN OUTSIDE INDEPENDENT ACCOUNTING FIRM. THE DRAFT FORM 990 IS REVIEWED BY THE CONTROLLER, CHIEF FINANCIAL OFFICER &amp; GENERAL COUNSEL. AFTER THE STAFF REVIEW THE RETURN, IT IS THEN REVIEWED BY THE AUDIT COMMITTEE. THE REVIEWED AND CORRECTED 990 FORM IS THEN SENT OUT TO ALL THE BOARD MEMBERS OF THE ORGANIZATION FOR THEIR REVIEW AND COMMENTS. THE RETURN IS FILED ONCE ALL PARTIES HAVE COMPLETED THEIR REVIEW AND REQUIRED EDITS HAVE BEEN MADE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>OPEN SPACE INSTITUTE, INC. HAS A CONFLICT OF INTEREST POLICY WHICH REQUIRES ALL INTERESTED PERSONS TO DISCLOSE CONFLICTS AND POTENTIAL CONFLICTS AS SOON AS THEY ARISE. ONCE A CONFLICT OR POTENTIAL CONFLICT HAS BEEN DISCLOSED, THE INTERESTED PERSON MAY NOT DISCUSS THE TRANSACTION THAT IS THE BASIS OF SUCH CONFLICT, AND MUST RECUSE HIMSELF OR HERSELF FROM ANY VOTE ON SUCH TRANSACTION. THE PRESIDENT EACH YEAR REPORTS TO THE BOARD OF TRUSTEES ALL CONFLICT TRANSACTIONS AND HOW THEY WERE HANDLED. THE BOARD OF OPEN SPACE INSTITUTE, INC. HAS THE POWER TO TAKE REMEDIAL ACTION IF THE CONFLICT POLICY IS VIOLATED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS OF DETERMINING COMPENSATION FOR TOP MANAGEMENT AND KEY EMPLOYEES INVOLVES OUR COMPENSATION COMMITTEE WORKING WITH AN INDEPENDENT COMPENSATION CONSULTANT. THE COMMITTEE PERFORMS AN ANNUAL ASSESSMENT OF THE RESPONSIBILITIES AND PERFORMANCE OF THE CEO/PRESIDENT (OTHER TOP MANAGEMENT AND KEY EMPLOYEES ARE REVIEWED AT LEAST ANNUALLY BY THE CEO/PRESIDENT). THE COMMITTEE ALSO UTILIZES COMPENSATION SURVEYS AND INFORMATION GLEANED FROM FORM 990S OF COMPARABLE ORGANIZATIONS TO DETERMINE APPLICABLE COMPENSATION RATES. ONCE REASONABLE AND COMPETITIVE COMPENSATION RATES ARE ESTABLISHED, THEY ARE APPROVED BY THE COMPENSATION COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>OPEN SPACE INSTITUTE, INC. MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, WHISTLEBLOWER POLICY, DOCUMENT RETENTION AND DESTRUCTION POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE GENERAL PUBLIC. THESE DOCUMENTS ARE SENT TO ANYONE WHO CONTACTS OUR ORGANIZATION AND REQUESTS SUCH INFORMATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CITAC CONSULTANT FEES: PROGRAM SERVICE EXPENSES 442,904. MANAGEMENT AND GENERAL EXPENSES 16,930. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 459,834. CITAC EDUCATIONAL FEES: PROGRAM SERVICE EXPENSES 22,533. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 22,533.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION OF THE ORGANIZATION'S AUDIT COMMITTEE: THE AUDIT COMMITTEE OF THE OPEN SPACE INSTITUTE, INC. IS RESPONSIBLE FOR THE OVERSIGHT OF OSI'S FINANCIAL STATEMENTS AND SELECTION OF OSI'S INDEPENDENT ACCOUNTANT. THE COMMITTEE MEETS QUARTERLY TO REVIEW COMPLEX TRANSACTIONS AND INTERIM FINANCIAL STATEMENTS TO OBTAIN A BETTER UNDERSTANDING OF THE CURRENT FINANCIAL CONDITION OF THE ORGANIZATION. ON AN ANNUAL BASIS OSI'S AUDIT COMMITTEE REVIEWS THE REPORT TO THE AUDIT COMMITTEE PREPARED BY OSI'S OUTSIDE AUDITORS AND THE CONSOLIDATED FINANCIAL STATEMENTS OF OUR ORGANIZATION. THE AUDIT COMMITTEE PERIODICALLY REVIEWS, NOT LESS THAN EVERY FIVE YEARS, THE NEED TO REPLACE OSI'S INDEPENDENT ACCOUNTANT BASED ON CERTAIN CRITERIA. THE CRITERIA CONSIDERED INCLUDE DETERMINING IF THE INDEPENDENT ACCOUNTANT POSSESSES A HIGH LEVEL OF KNOWLEDGE OF ACCOUNTING STANDARDS AND PRINCIPLES, GENERALLY, AND NOT FOR PROFIT ACCOUNTING KNOWLEDGE, SPECIFICALLY, AND IF THEY CAN COMPLETE THE REQUIRED WORK IN A TIMELY MANNER AT A COMPETITIVE PRICE.</ExplanationTxt>
      </SupplementalInformationDetail>
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          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10018</ZIPCd>
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          <BusinessNameLine1Txt>BEAVERKILL VALLEY LAND TRUST INC</BusinessNameLine1Txt>
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          <CityNm>NEW YORK</CityNm>
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      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
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      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
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      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
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      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
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          <BusinessNameLine1Txt>OPEN SPACE INSTITUTE LAND TRUST INC</BusinessNameLine1Txt>
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        <TransactionTypeTxt>N</TransactionTypeTxt>
        <InvolvedAmt>918788</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ALLOCATED EXPENSES</MethodOfAmountDeterminationTxt>
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          <BusinessNameLine1Txt>OPEN SPACE INSTITUTE LAND TRUST INC</BusinessNameLine1Txt>
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        <TransactionTypeTxt>O</TransactionTypeTxt>
        <InvolvedAmt>5565475</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ALLOCATED EXPENSES</MethodOfAmountDeterminationTxt>
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      <MeduimExplanationTxt>PURSUANT TO REGULATIONS SECTION 56.4911-8(B) AND IRC SECTION 4911(F), AN AFFILIATED GROUP OF ORGANIZATIONS IS TREATED AS A SINGLE ORGANIZATION FOR THE PURPOSES OF THE TAX IMPOSED BY IRC SECTION 4911(A). THEREFORE, SINCE THE AFFILIATED GROUP DID NOT HAVE ANY EXCESS LOBBYING EXPENDITURES OR EXCESS GRASSROOTS LOBBYING EXPENDITURES, THE FILING ORGANIZATION IS DEEMED TO NOT HAVE EXCESS LOBBYING EXPENDITURES OR EXCESS GRASSROOTS LOBBYING EXPENDITURES FOR THE PURPOSES OF THE DISCLOSURE ON PART II-A, LINE 1(H) AND 1(I), COLUMN A.AFFILIATED GROUP MEMBER:OPEN SPACE INSTITUTE LAND TRUST, INC. (EIN 13-3028060)1350 BROADWAY, SUITE 201NEW YORK, NY 10018</MeduimExplanationTxt>
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          <CityNm>NEW YORK</CityNm>
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        <TotalExemptPurposeExpendAmt>311195</TotalExemptPurposeExpendAmt>
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        <GrassrootsNontxAmt>15560</GrassrootsNontxAmt>
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