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      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>true</FederalGrantAuditRequiredInd>
      <FederalGrantAuditPerformedInd>true</FederalGrantAuditPerformedInd>
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        <CurrentTaxYearMinus4YearsAmt>7956835</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8603764</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10066602</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10583725</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>13697018</CurrentTaxYearAmt>
        <TotalAmt>50907944</TotalAmt>
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      <TaxRevLeviedOrgnztnlBnft170Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft170Grp>
      <GovtFurnSrvcFcltsVl170Grp>
        <TotalAmt>0</TotalAmt>
      </GovtFurnSrvcFcltsVl170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>7956835</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8603764</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10066602</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10583725</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>13697018</CurrentTaxYearAmt>
        <TotalAmt>50907944</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>12832132</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>38075812</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>243314</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>195200</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>169327</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>294763</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>274147</CurrentTaxYearAmt>
        <TotalAmt>1176751</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <TotalAmt>0</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
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        <CurrentTaxYearMinus4YearsAmt>1627</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>1627</TotalAmt>
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      <TotalSupportAmt>52086322</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>282996</GrossReceiptsRltdActivitiesAmt>
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      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
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        <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>
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    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD">
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      <HeldWorksArtGrp />
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>56880</BeginningYearBalanceAmt>
        <ContributionsAmt>1200000</ContributionsAmt>
        <EndYearBalanceAmt>1256880</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>56880</BeginningYearBalanceAmt>
        <EndYearBalanceAmt>56880</EndYearBalanceAmt>
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      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>56880</BeginningYearBalanceAmt>
        <EndYearBalanceAmt>56880</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>56880</BeginningYearBalanceAmt>
        <EndYearBalanceAmt>56880</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>56880</BeginningYearBalanceAmt>
        <EndYearBalanceAmt>56880</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <PrmnntEndowmentBalanceEOYPct>1.00000</PrmnntEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <LandGrp />
      <BuildingsGrp />
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>854637</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>705177</DepreciationAmt>
        <BookValueAmt>149460</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>1165511</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>879234</DepreciationAmt>
        <BookValueAmt>286277</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp />
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      <FederalIncomeTaxLiabilityAmt>0</FederalIncomeTaxLiabilityAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED RENT</Desc>
        <Amt>565955</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>565955</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>14616567</TotalRevEtcAuditedFinclStmtAmt>
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      <RevenueSubtotalAmt>13789106</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>61548</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>61548</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>13850654</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>13143841</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>13143841</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>61548</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>61548</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>13205389</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>NET ASSETS WITH DONOR RESTRICTIONS CONSIST OF CONTRIBUTIONS RECEIVED IN WHICH THE DONORS STIPULATED THE FUNDS BE MAINTAINED IN PERPETUITY FOR THE OVERALL MISSION AND PURPOSE OF PRB. THE INCOME EARNED ON THE INVESTMENTS IS DONOR RESTRICTED UNTIL APPROPRIATED AND GENERALLY USED IN THE PERIOD IT IS EARNED.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRB IS EXEMPT FROM FEDERAL INCOME TAXES UNDER PROVISIONS OF SECTION 50(C)(3) OF THE INTERNAL REVENUE CODE. IN ADDITION, PRB HAS BEEN CLASSIFIED BY THE INTERNAL REVENUE SERVICE AS A PUBLICLY SUPPORTED ORGANIZATION UNDER SECTION 509(A)(1) OF THE INTERNAL REVENUE CODE. PRB FOLLOWS THE PROVISIONS OF THE FINANCIAL ACCOUNTING STANDARDS BOARD (FASB) ACCOUNTING STANDARDS CODIFICATION (ASC) 740-10, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES. INCOME TAX BENEFITS ARE RECOGNIZED FOR INCOME TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN ONLY WHEN IT IS DETERMINED THAT THE INCOME TAX POSITION WILL MORE-LIKELY-THAN-NOT BE SUSTAINED UPON EXAMINATION BY TAXING AUTHORITIES. PRB HAS ANALYZED TAX POSITIONS TAKEN FOR FILING WITH THE INTERNAL REVENUE SERVICE AND ALL STATE JURISDICTIONS WHERE IT OPERATES. PRB BELIEVES THAT INCOME TAX FILING POSITIONS WILL BE SUSTAINED UPON EXAMINATION AND DOES NOT ANTICIPATE ANY ADJUSTMENTS THAT WOULD RESULT IN A MATERIAL ADVERSE EFFECT ON PRB'S FINANCIAL POSITION, RESULTS OF ACTIVITIES OR CASH FLOWS. ACCORDINGLY, PRB HAS NOT RECORDED ANY RESERVES OR RELATED ACCRUALS FOR TAXES, INTEREST AND PENALTIES FOR UNCERTAIN INCOME TAX POSITIONS AT SEPTEMBER 30, 2020 AND 2019. PRB IS OPEN TO EXAMINATION BY TAXING AUTHORITIES FROM 2017 FORWARD.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Grantmaking</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>N/A</SpecificServicesProvidedTxt>
        <RegionTotalExpendituresAmt>223146</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Grantmaking</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>N/A</SpecificServicesProvidedTxt>
        <RegionTotalExpendituresAmt>38918</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>262064</SubtotalSpentAmt>
      <TotalSpentAmt>262064</TotalSpentAmt>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>ADVOCACY</PurposeOfGrantTxt>
        <CashGrantAmt>63254</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>East Asia and the Pacific</RegionTxt>
        <PurposeOfGrantTxt>ADVOCACY</PurposeOfGrantTxt>
        <CashGrantAmt>6118</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>16335</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>20000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>11893</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>ADVOCACY</PurposeOfGrantTxt>
        <CashGrantAmt>33000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <GrantsToOrgOutsideUSGrp>
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        <PurposeOfGrantTxt>ADVOCACY</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>ADVOCACY</PurposeOfGrantTxt>
        <CashGrantAmt>32000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>ADVOCACY</PurposeOfGrantTxt>
        <CashGrantAmt>5500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>6164</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>15000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>East Asia and the Pacific</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>6500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>East Asia and the Pacific</RegionTxt>
        <PurposeOfGrantTxt>SEE PART V</PurposeOfGrantTxt>
        <CashGrantAmt>26300</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>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRB ISSUES A REQUEST FOR PROPOSALS, WHICH ARE CAREFULLY REVIEWED BY BOTH INTERNAL AND EXTERNAL REVIEWERS. ONCE THE SUCCESSFUL APPLICANTS ARE CHOSEN, A PRB PROGRAM MANAGER AND A PRB FINANCIAL ADMINISTRATOR MANAGE THE PROJECT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I and II:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ACCRUAL BASIS OF ACCOUNTING IS USED TO REPORT AMOUNTS LISTED IN PARTS I AND II.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II:</FormAndLineReferenceDesc>
        <ExplanationTxt>COLUMN (D) - PURPOSE OF GRANT OR ASSISTANCE: 3) COMMUNICATION &amp; DISSEMINATION 4) COMMUNICATION &amp; DISSEMINATION 5)COMMUNICATION &amp; DISSEMINATION 10) COMMUNICATION &amp; DISSEMINATION 11) MULTIMEDIA TRAINING 12) MULTIMEDIA TRAINING 13) DATA ANALYSIS &amp; PUBLICATION</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
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        </RecipientBusinessName>
        <USAddress>
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          <CityNm>Boston</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02210</ZIPCd>
        </USAddress>
        <RecipientEIN>042679824</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>826171</CashGrantAmt>
        <PurposeOfGrantTxt>See Part IV</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
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          <BusinessNameLine1Txt>INTERNATIONAL YOUTH ALLIANCE FOR FAMILY PLANNING</BusinessNameLine1Txt>
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          <AddressLine1Txt>1750 HARVARD ST NW</AddressLine1Txt>
          <AddressLine2Txt>3B</AddressLine2Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20009</ZIPCd>
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        <PurposeOfGrantTxt>See Part IV</PurposeOfGrantTxt>
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      <RecipientTable>
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          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20006</ZIPCd>
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        <PurposeOfGrantTxt>See Part IV</PurposeOfGrantTxt>
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      <Total501c3OrgCnt>3</Total501c3OrgCnt>
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        <ExplanationTxt>PRB FOLLOWS OMB'S UNIFORM GUIDANCE REGULATIONS BEFORE PROCURING ANY GOODS AND SERVICES. PRB ISSUES A REQUEST FOR PROPOSALS, WHICH ARE CAREFULLY REVIEWED BY BOTH INTERNAL AND EXTERNAL REVIEWERS. ONCE THE SUCCESSFUL APPLICANTS ARE CHOSEN, A PRB PROGRAM MANAGER AND A PRB FINANCIAL ADMINISTRATOR MANAGE THE PROJECT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II:</FormAndLineReferenceDesc>
        <ExplanationTxt>COLUMN (H) - PURPOSE OF GRANT OR ASSISTANCE 1)SUBAWARD FOR LEARNING, MONITORING AND EVALUATION SERVICES UNDER MOMENTUM PROJECT. 2) SUB-GRANT FOR YOUTH POLICY ADVOCACY. 3) SUB-GRANT FOR COMMUNITY RADIO STATIONS AND YOUTH JOURNALISTS ENGAGEMENT IN MALAWI.</ExplanationTxt>
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      <IndependentConsultantInd>X</IndependentConsultantInd>
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      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
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      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
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      <InitialContractExceptionInd>false</InitialContractExceptionInd>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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        <PersonNm>Barbara Seligman</PersonNm>
        <TitleTxt>VP-International Programs</TitleTxt>
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        <BonusFilingOrganizationAmount>5000</BonusFilingOrganizationAmount>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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        <PersonNm>Viresh Desai</PersonNm>
        <TitleTxt>CFO</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>2500</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15921</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22646</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>252920</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Linda A Jacobsen</PersonNm>
        <TitleTxt>VP-U.S. PROGRAMS</TitleTxt>
        <BaseCompensationFilingOrgAmt>200316</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>2000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14674</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24533</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>241523</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Laura Wedeen</PersonNm>
        <TitleTxt>Associate VP - INTL. PROGRAMS</TitleTxt>
        <BaseCompensationFilingOrgAmt>158687</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>2000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>10329</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>14806</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>185822</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Leslie M Aun</PersonNm>
        <TitleTxt>VP-COMMUNICATION &amp; MARKETING</TitleTxt>
        <BaseCompensationFilingOrgAmt>152221</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>9399</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>18365</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>179985</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Mark Mather</PersonNm>
        <TitleTxt>ASSOCIATE VP-U.S. PROGRAMS</TitleTxt>
        <BaseCompensationFilingOrgAmt>154033</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>1200</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>2360</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>167802</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRB ANALYZES AND DISSEMINATES INFORMATION ABOUT POPULATIONS AND THEIR HEALTH AND WELL-BEING SO IT CAN BE USED TO INFORM DECISIONS THAT IMPROVE LIVES AROUND THE WORLD. PRB DEVELOPS COMMUNICATIONS TOOLS AND STRATEGIES THAT DRIVE POLICY, PROGRAMMING, AND FUNDING DECISIONS. PRB IS A TRUSTED SOURCE, EMPLOYING A VARIETY OF APPROACHES TO CONNECT DATA USERS WITH DATA PRODUCERS. PRB SEEKS TO MAGNIFY ITS IMPACT BY TRAINING OTHERS TO USE INFORMATION IN SUPPORT OF DECISION-MAKING TO ADVANCE OUR VISION AND VALUES FOR GENERATIONS TO COME.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRB'S EXECUTIVE COMMITTEE MEETS EVERY TWO MONTHS AND IS EMPOWERED TO ACT ON BEHALF OF THE FULL BOARD OF TRUSTEES. THE FULL BOARD OF TRUSTEES MEETS TWICE A YEAR IN PERSON AND ONCE VIA TELECONFERENCE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S FORM 990 UNDERGOES A NUMBER OF INTERNAL AND EXTERNAL REVIEWS BEFORE IT IS FILED WITH THE IRS. THE RETURN IS PREPARED BY THE ORGANIZATION'S PUBLIC ACCOUNTING FIRM, BDO USA AND IS REVIEWED BY THE ORGANIZATION'S CHIEF FINANCIAL OFFICER. A FINAL DRAFT OF THE FORM 990 IS PROVIDED TO EACH MEMBER OF THE ORGANIZATION'S BOARD OF TRUSTEES FOR FINAL REVIEW. BDO WALKS THROUGH VARIOUS SCHEDULES OF THE FORM 990 WITH FULL BOARD AND ANSWERS ANY QUESTIONS. AFTER A BOARD QUORUM APPROVES THE FORM 990, THE PRESIDENT/CEO SIGNS THE RETURN AND BDO FILES IT ELECTRONICALLY WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C:</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH TRUSTEE, DIRECTOR, OFFICER, AND KEY EMPLOYEE COMPLETES A CONFLICT OF INTEREST QUESTIONNAIRE WHICH IS REVIEWED BY THE CFO AND THE CHAIR OF THE AUDIT COMMITTEE. ANY QUESTIONS ARE FOLLOWED UP THE AUDIT COMMITTEE CHAIR AND A FULL REPORT IS GIVEN TO THE BOARD OF TRUSTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRESIDENT/CEO COMPENSATION IS DETERMINED BY THE PRB EXECUTIVE COMMITTEE AND APPROVED BY THE FULL BOARD OF TRUSTEES. THE CEO AND CFO REVIEW PERFORMANCE AND COMPENSATION FOR DEPARTMENT VPS AND SENIOR STAFF. DEPARTMENT VPS REVIEW PERFORMANCE AND COMPENSATION FOR THEIR DEPARTMENT EMPLOYEES. THE VPS MEET TOGETHER TO REVIEW COMPENSATION RECOMMENDATIONS TO ENSURE EQUITY ACROSS DEPARTMENTS. KEY EMPLOYEE AND VP COMPENSATION IS DETERMINED BY THE CEO AND CFO, IN CONJUNCTION WITH A REVIEW BY THE HR DIRECTOR. COMPARABILITY DATA FROM SIMILAR ORGANIZATIONS IS USED TO COMPARE BOTH BASE SALARIES AND INCREASES.</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 FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST AND BY WAY OF GUIDESTAR. ADDITIONALLY, FINANCIAL STATEMENTS ARE AVAILABLE IN THE ORGANIZATION'S ANNUAL REPORT AND ON PRB WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE HAVE BEEN NO CHANGES DURING THE YEAR IN THE PROCESS FOR OVERSIGHT OF THE AUDIT OF THE FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 PART IX LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION:CONTRACTUAL SERVICES TOTAL FEES:2038130</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>