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        <InvestmentEarningsOrLossesAmt>420865</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>4951749</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>1.00000</BoardDesignatedBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>24895</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>550</DepreciationAmt>
        <BookValueAmt>24345</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>94360</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>94360</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>48684</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>48684</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>24345</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>LEASE LIABILITY</Desc>
        <Amt>71989</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>PENSION LIABILITY</Desc>
        <Amt>3539</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>75528</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>2935497</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>302740</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>302740</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>2632757</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>32878</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>32878</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>2665635</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>2541439</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>2541439</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>32878</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>32878</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>2574317</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FUND WAS ESTABLISHED FOR THE PURPOSE OF GENERATING A STEADY SOURCE OF INCOME FOR THE SUPPORT OF NCSHPO'S OPERATIONS TO ENABLE IT TO MAINTAIN ITS CURRENT LEVEL OF SERVICE TO STATE HISTORIC PRESERVATION OFFICERS WITHOUT INCREASING THE MEMBER STATES AND TERRITORIES' CURRENT DUES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>NCSHPO PERFORMED AN EVALUATION OF UNCERTAINTY IN INCOME TAXES FOR THE YEARS ENDED DECEMBER 31, 2025 AND 2024, AND DETERMINED THAT THERE WERE NO MATTERS THAT WOULD REQUIRE RECOGNITION IN THE FINANCIAL STATEMENTS OR THAT MAY HAVE ANY EFFECT ON ITS TAX-EXEMPT STATUS, AND THERE ARE CURRENTLY NO EXAMINATIONS PENDING OR IN PROGRESS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>PRESERVATION ACTION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>2020 PENNSYLVANIA AVENUE NW 313</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20006</ZIPCd>
        </USAddress>
        <RecipientEIN>237437445</RecipientEIN>
        <IRCSectionDesc>501(C)(4)</IRCSectionDesc>
        <CashGrantAmt>20000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>SUPPORT TOWARD EDUCATIONAL OUTREACH MATERIALS</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>0</Total501c3OrgCnt>
      <TotalOtherOrgCnt>1</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>NCSHPO PROVIDES SUPPORT TO PRESERVATION ACTION FOR VARIOUS EDUCATIONAL OUTREACH MATERIALS AND ACTIVITIES THAT EXPLAIN THE WORK OF STATE HISTORIC PRESERVATION OFFICERS, THE MECHANICS OF THE FEDERAL HISTORIC PRESERVATION PROGRAM, AND THE FUNCTION OF THE HISTORIC PRESERVATION FUND (HPF). WE WORK CLOSELY WITH PRESERVATION ACTION ON THE DEVELOPMENT OF THOSE MATERIALS AND EVENTS, PROVIDING ONGOING FEEDBACK ON THEIR PERFORMANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ERIK HEIN</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>142658</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>259</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14357</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>16923</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>174197</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERSHIP OF THE NATIONAL CONFERENCE SHALL BE (1) THE OFFICIALLY DESIGNATED STATE HISTORIC PRESERVATION OFFICER IN EACH OF THE QUALIFIED STATES, DISTRICTS, COMMONWEALTHS AND TERRITORIES OF THE UNITED STATES AND (2) AN OFFICER OR EMPLOYEE DESIGNATED BY THE STATE HISTORIC PRESERVATION OFFICER FOR EACH.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS IN GOOD STANDING ARE STATES WHO HAVE PAID THEIR DUES AND ARE ENTITLED TO ONE VOTE ON EACH MATTER SUBMITTED TO THE MEMBERSHIP. ONLY MEMBERS IN GOOD STANDING MAY VOTE, HOLD OFFICE OR MEMBERSHIP ON THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>NCSHPO HIRES AN INDEPENDENT ACCOUNTING FIRM TO PREPARE THE FEDERAL FORM 990. AFTER THE DRAFT IS PROVIDED, THE EXECUTIVE DIRECTOR REVIEWS THE COPY BEFORE IT IS DISTRIBUTED TO THE EXECUTIVE COMMITTEE. A COPY OF THE FEDERAL FORM 990 IS ALSO DISTRIBUTED TO THE BOARD OF DIRECTORS FOR REVIEW PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY IS APPLICABLE TO STAFF, OFFICERS AND BOARD OF DIRECTORS. EVERY OFFICER, BOARD OF DIRECTOR AND EMPLOYEE AGREES TO THE POLICY. EVERYONE IS RESPONSIBLE TO REPORT A CONFLICT. OFFICERS, BOARD OF DIRECTORS, AND THE EXECUTIVE DIRECTOR REPORT TO THE PRESIDENT; STAFF REPORT TO THE EXECUTIVE DIRECTOR. ANY INDIVIDUAL WITH A POTENTIAL CONFLICT OF INTEREST SHALL TAKE APPROPRIATE ACTION INCLUDING RECUSAL FROM THE DECISION MAKING PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE USED COMPENSATION STUDIES TO DETERMINE THE COMPENSATION OF THE EXECUTIVE DIRECTOR. THE LAST COMPENSATION STUDY WAS REVIEWED IN 2013. IT WAS ALSO DETERMINED THAT ALL STAFF SALARIES WERE WITHIN THE NORMS FOR THIS REGION. ON AN ANNUAL BASIS THE BOARD OF DIRECTORS MEET TO DISCUSS EACH YEARS' BUDGET WHICH IS DOCUMENTED IN THE BOARD MINUTES; THIS MEETING INCLUDES THE REVIEW OF COMPENSATION FOR EACH EMPLOYEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>CERTAIN ORGANIZATIONAL DOCUMENTS ARE AVAILABLE AT THE PRESERVATION ARCHIVES AT THE UNIVERSITY OF MARYLAND. OTHER DOCUMENTS, SUCH AS THE FINANCIAL RECORDS, ARE AVAILABLE IN NCSHPO'S OFFICE. NCSHPO'S BYLAWS, CONFLICT OF INTEREST POLICY, THE FEDERAL FORM 990, AND AUDITED FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTANTS: PROGRAM SERVICE EXPENSES 1,109,417. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 1,109,417.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>