﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-11-04T11:56:24-06:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>HAN GROUP LLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1020 19TH STREET NW SUITE 800</AddressLine1Txt>
        <CityNm>WASHINGTON</CityNm>
        <StateAbbreviationCd>DC</StateAbbreviationCd>
        <ZIPCd>20036</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>521111284</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>NATIONAL SOCIETY FOR HISTOTECHNOLOGY</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>NATI</BusinessNameControlTxt>
      <PhoneNum>4435354060</PhoneNum>
      <USAddress>
        <AddressLine1Txt>3545 ELLICOTT MILLS DRIVE PMB 204</AddressLine1Txt>
        <CityNm>ELLICOTT CITY</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>21043</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>AUBREY MJ WANNER</PersonNm>
      <PersonTitleTxt>CHIEF EXECUTIVE OFFICER</PersonTitleTxt>
      <PhoneNum>4435354060</PhoneNum>
      <SignatureDt>2024-11-02</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>JENNIFER S HAN</PreparerPersonNm>
      <PTIN>P00633304</PTIN>
      <PhoneNum>2022937000</PhoneNum>
      <PreparationDt>2024-11-02</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="6">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>AUBREY MJ WANNER</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>3545 ELLICOTT MILLS DRIVE PMB 204</AddressLine1Txt>
        <CityNm>ELLICOTT CITY</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>21043</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>2107709</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <WebsiteAddressTxt>WWW.NSH.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1974</FormationYr>
      <LegalDomicileStateCd>MD</LegalDomicileStateCd>
      <ActivityOrMissionDesc>TO EMPOWER THE PROFESSION OF HISTOTECHNOLOGY THROUGH COLLABORATION, EDUCATION, AND INNOVATION.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>14</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>14</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>6</TotalEmployeeCnt>
      <TotalVolunteersCnt>50</TotalVolunteersCnt>
      <TotalGrossUBIAmt>176694</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>15192</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>21019</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>34710</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>1483988</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>1579101</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>46160</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>30907</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>224018</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>231637</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>1775185</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>1876355</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>34583</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>25634</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>514200</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>523862</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>1408792</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>1413844</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>1957575</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>1963340</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-182390</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-86985</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>1551647</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>1342978</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>410142</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>190600</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>1141505</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>1152378</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>TO EMPOWER THE PROFESSION OF HISTOTECHNOLOGY THROUGH COLLABORATION, EDUCATION, AND INNOVATION.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <Desc>SYMPOSIUM: THE NATIONAL SOCIETY FOR HISTOTECHNOLOGY (NSH) ANNUAL SYMPOSIUM/CONVENTION FORMS THE LARGEST EDUCATIONAL EVENT OF ITS KIND, WORKING TO ADVANCE AND PROMOTE THE HISTOLOGY PROFESSION. NSH IS THE PREMIER SOURCE OF LEARNING, KNOWLEDGE, AND FUTURE ORIENTED RESEARCH FOR HISTOLOGY PROFESSIONALS. ATTENDANCE PROVIDES RESOURCES, EDUCATION, IDEAS, AND ADVOCACY TO ENHANCE THE PERFORMANCE IN THE LABORATORY AND ULTIMATELY THE BEST PATIENT CARE.</Desc>
      <ProgSrvcAccomActy2Grp>
        <Desc>EDUCATION: NSH PROVIDES EDUCATIONAL WEBINARS, IN PERSON SEMINARS, AND ONLINE SELF-PACED COURSES (INCLUDING CERTIFICATES OF COMPLETION) TO FURTHER KNOWLEDGE IN HISTOTECHNOLOGY DESIGNED TO IMPROVE COMPETENCE AND EXPAND HISTOTECHNICIANS AND HISTOTECHNOLOGISTS' COMPETENCIES RESULTING IN QUALITY PATIENT OUTCOMES.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <Desc>OUTREACH AND COMMUNICATIONS - NSH SHARES KNOWLEDGE AND RESOURCES WITH ALLIED ORGANIZATIONS, REGULATORY BODIES, A COMMUNITY OF PEERS, ONLINE ON NSH'S MEMBER COMMUNITY THE BLOCK, AND FACE-TO-FACE AT NSH'S EVENTS.</Desc>
      </ProgSrvcAccomActy3Grp>
      <DescribedInSection501c3Ind>0</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc1039700001">0</PoliticalCampaignActyInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc1039700001">1</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc1041900001">1</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>3</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>6</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>1</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>1</Form990TFiledInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>1</NondeductibleContributionsInd>
      <NondeductibleContriDisclInd>1</NondeductibleContriDisclInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>14</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>14</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>1</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>1</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>1</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MD</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>AUBREY MJ WANNER</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>4435354060</PhoneNum>
        <USAddress>
          <AddressLine1Txt>3545 ELLICOTT MILLS DRIVE PMB 204</AddressLine1Txt>
          <CityNm>ELLICOTT CITY</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21043</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>JERRY SANTIAGO</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>8.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOANNA BARTON</PersonNm>
        <TitleTxt>PRESIDENT-ELECT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HECTOR HERNANDEZ</PersonNm>
        <TitleTxt>IMMEDIATE PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHELLE BELL</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH CHLIPALA</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KONSTANCE ZEITNER</PersonNm>
        <TitleTxt>SPEAKER OF THE HOUSE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LUIS CHIRIBOGA</PersonNm>
        <TitleTxt>REGION I DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHELLE HART</PersonNm>
        <TitleTxt>REGION II DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN CLARK</PersonNm>
        <TitleTxt>REGION III DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAWN SCHNEIDER</PersonNm>
        <TitleTxt>REGION IV DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>COLLEEN FORSTER</PersonNm>
        <TitleTxt>REGION V DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SHAMEIKA WINFREY</PersonNm>
        <TitleTxt>REGION VI DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JEREMY JOHNSTON</PersonNm>
        <TitleTxt>REGION VIII DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NADIA GALE</PersonNm>
        <TitleTxt>REGION IX DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AUBREY MJ WANNER</PersonNm>
        <TitleTxt>CHIEF EXECUTIVE OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>130000</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>15301</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>130000</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>15301</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>1</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>34710</AllOtherContributionsAmt>
      <TotalContributionsAmt>34710</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>SEMINARS</Desc>
        <BusinessCd>611430</BusinessCd>
        <TotalRevenueColumnAmt>402579</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>402579</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>EXHIBITOR BOOTH RENTAL</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>389200</TotalRevenueColumnAmt>
        <ExclusionAmt>389200</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>CONVENTION FEES</Desc>
        <BusinessCd>611430</BusinessCd>
        <TotalRevenueColumnAmt>388640</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>306040</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>82600</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>JOURNAL &amp; DIGITAL AD</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>256834</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>80140</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>176694</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>121828</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>121828</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>20020</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>20020</RelatedOrExemptFuncIncomeAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>1579101</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>37261</TotalRevenueColumnAmt>
        <ExclusionAmt>37261</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>224188</TotalRevenueColumnAmt>
        <ExclusionAmt>224188</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>225000</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>231354</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-6354</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-6354</TotalRevenueColumnAmt>
        <ExclusionAmt>-6354</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>7449</TotalRevenueColumnAmt>
        <ExclusionAmt>7449</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>7449</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1876355</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>930607</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>176694</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>734344</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>4149</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>21485</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>145301</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>300508</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>14296</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>30593</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>33164</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>16800</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>66965</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>10647</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>403453</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>70848</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>151935</TotalAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>192108</TotalAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>2477</TotalAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>103663</TotalAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>314766</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>791</TotalAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>17713</TotalAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>31679</TotalAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>UBIT TAXES</Desc>
        <TotalAmt>15412</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MEMBERSHIP DUES/SUBS.</Desc>
        <TotalAmt>14467</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>LICENSES</Desc>
        <TotalAmt>120</TotalAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>1963340</TotalAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>114816</BOYAmt>
        <EOYAmt>77477</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>66393</BOYAmt>
        <EOYAmt>26742</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>172811</BOYAmt>
        <EOYAmt>155410</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>131192</BOYAmt>
        <EOYAmt>103356</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>118982</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>98026</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>40169</BOYAmt>
        <EOYAmt>20956</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>1025206</BOYAmt>
        <EOYAmt>957977</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>1060</BOYAmt>
        <EOYAmt>1060</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>1551647</BOYAmt>
        <EOYAmt>1342978</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>262972</BOYAmt>
        <EOYAmt>79618</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>147170</BOYAmt>
        <EOYAmt>110982</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>410142</BOYAmt>
        <EOYAmt>190600</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>1122536</BOYAmt>
        <EOYAmt>1131699</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>18969</BOYAmt>
        <EOYAmt>20679</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>1141505</BOYAmt>
        <EOYAmt>1152378</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1551647</BOYAmt>
        <EOYAmt>1342978</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-86985</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>97858</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <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>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="RetDoc1039700001">
      <SubstantiallyAllDuesNondedInd>0</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>1</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>0</AgreeCarryoverPriorYearInd>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>2271</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2271</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>116711</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>95755</DepreciationAmt>
        <BookValueAmt>20956</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>20956</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1963566</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>97858</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>97858</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1865708</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>10647</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>10647</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1876355</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1952693</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1952693</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>10647</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>10647</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>1963340</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION FOLLOWS THE AUTHORITATIVE GUIDANCE RELATING TO ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES INCLUDED IN ACCOUNTING STANDARDS CODIFICATION TOPIC 740-10, INCOME TAXES. THESE PROVISIONS PROVIDE CONSISTENT GUIDANCE FOR THE ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES RECOGNIZED ON AN ENTITY'S FINANCIAL STATEMENTS AND PRESCRIBE A THRESHOLD OF "MORE LIKELY THAN NOT" FOR RECOGNITION AND DERECOGNITION OF TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN. IT IS THE ORGANIZATION'S POLICY TO RECOGNIZE INTEREST AND/OR PENALTIES RELATED TO UNCERTAIN TAX POSITIONS, IF ANY, IN INCOME TAX EXPENSES. THE ORGANIZATION PERFORMED AN EVALUATION OF UNCERTAIN TAX POSITIONS FOR THE YEAR ENDED DECEMBER 31, 2023 AND DETERMINED THAT THERE WERE NO MATTERS THAT WOULD REQUIRE RECOGNITION ON THE FINANCIAL STATEMENTS OR THAT MAY HAVE ANY EFFECT ON ITS TAX-EXEMPT STATUS. THE STATUTE OF LIMITATIONS GENERALLY REMAINS OPEN FOR THREE TAX YEARS WITH THE U.S. FEDERAL JURISDICTION OR THE VARIOUS STATES AND LOCAL JURISDICTIONS IN WHICH THE ORGANIZATION FILES TAX RETURNS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>AWARDS &amp; SCHOLARSHIPS</GrantTypeTxt>
        <RecipientCnt>23</RecipientCnt>
        <CashGrantAmt>21485</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>AWARDS AND SCHOLARSHIPS ARE GIVEN TO STUDENTS WHO ARE SELECTED FROM AN APPLICATION PROCESS. MEMBERS CAN NOMINATE CANDIDATES OR SELF-NOMINATE. THE AWARDS AND SCHOLARSHIPS RECOGNIZE THE ACHIEVEMENTS AND ENCOURAGE FUTURE PROGRESS IN THE FIELD OF HISTOTECHNOLOGY.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>NSH AMENDED ITS BYLAWS DURING 2023 AS THERE WAS A LARGE-SCALE STRUCTURE OF NSH'S OVERALL GOVERNANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>PROFESSIONAL MEMBERS INDIVIDUALS ACTIVELY ENGAGED AND/OR INTERESTED IN HISTOTECHNOLOGY OR AN ALLIED PROFESSION THAT DO NOT QUALIFY FOR "STUDENT", "RETIRED", OR "INTERNATIONAL" STATUS. PREMIUM MEMBERS SHALL BE THOSE ACTIVE, STUDENT, OR RETIRED MEMBERS WHO CHOOSE TO PAY A FEE AND RECEIVE ADDITIONAL EDUCATIONAL BENEFITS AS DETERMINED BY THE BOARD OF DIRECTORS. STUDENT MEMBERS ANY INDIVIDUAL IN A COURSE OF TRAINING IN HISTOTECHNOLOGY WITH DOCUMENTATION FROM THE PROGRAM DIRECTOR AND/OR PATHOLOGISTS ATTESTING TO THEIR STUDENT TRAINING STATUS. INDIVIDUALS MAY HOLD STUDENT MEMBERSHIP FOR A MAXIMUM OF TWO YEARS. STUDENTS WITH APPROPRIATE VERIFICATION THAT THEY ARE ENROLLED IN A NACCLS APPROVED, OR CANADIAN PROGRAM ARE ELIGIBLE FOR A TWO-YEAR MEMBERSHIP FROM NSH. RETIRED MEMBERS RETIRED FROM THE PROFESSION. THE MEMBER MUST BE AN ACTIVE MEMBER IN GOOD STANDING FOR AT LEAST FIVE YEARS PRIOR TO RETIREMENT. ORGANIZATION SUSTAINING MEMBER COMPANIES WISHING TO HELP SUPPORT THE SOCIETY BY PAYING A FEE, SET BY THE BOARD. INTERNATIONAL INDIVIDUALS RESIDING OUTSIDE THE UNITED STATES, CANADA, AND US. POSSESSIONS WHO ARE GAINFULLY EMPLOYED AND ACTIVELY ENGAGED IN AND/OR INTERESTED IN HISTOTECHNOLOGY OR AN ALLIED PROFESSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>ONLY CHARTER, CORE, RETIRED, STUDENT, AND ENHANCED MEMBERS SHALL HAVE THE FULL PRIVILEGES OF MEMBERSHIP, BE ENTITLED TO VOTE, HOLD OFFICE, OR SERVE ON ANY BOARD, COMMITTEE, OR BY APPOINTMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>ONLY CHARTER, CORE, RETIRED, STUDENT, AND ENHANCED MEMBERS SHALL HAVE THE FULL PRIVILEGES OF MEMBERSHIP, BE ENTITLED TO VOTE, HOLD OFFICE, OR SERVE ON ANY BOARD, COMMITTEE, OR BY APPOINTMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FEDERAL FORM 990 IS PREPARED BY AN ACCOUNTING FIRM AND A DRAFT OF THE FEDERAL FORM 990 IS REVIEWED BY MANAGEMENT. THE DRAFT FORM 990 IS THEN DISTRIBUTED BY E-MAIL TO NSH'S FULL BOARD OF DIRECTORS FOR THEIR REVIEW PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>IN CONNECTION WITH ANY ACTUAL OR POSSIBLE CONFLICTS OF INTEREST, AN OFFICER, DIRECTOR, OR EMPLOYEE MUST DISCLOSE THE EXISTENCE OF HIS OR HER FINANCIAL INTERESTS IN NSH, INCLUDING BUSINESS AND FAMILY RELATIONSHIPS IN THE ORGANIZATION. EACH OFFICER, DIRECTOR OF EMPLOYEE IS REQUIRED TO COMPLETE A CONFLICT-OF INTEREST DISCLOSURE QUESTIONNAIRE ON AN ANNUAL BASIS. ANY POSSIBLE DISCLOSED FINANCIAL INTEREST, OR BUSINESS AND FAMILY RELATIONSHIPS, IS REVIEWED BY THE NSH EXECUTIVE DIRECTOR TO DETERMINE IF A CONFLICT OF INTEREST EXISTS. (NOTE THAT A FINANCIAL INTEREST OR BUSINESS AND FAMILY RELATIONSHIP DOES NOT NECESSARILY CONSTITUTE A CONFLICT OF INTEREST.) IF THE PERSON DISCLOSING THE FINANCIAL INTEREST OR EXISTING BUSINESS AND FAMILY RELATIONSHIPS IS A CURRENT MEMBER OF THE EXECUTIVE COMMITTEE, SAID MEMBER SHALL LEAVE THE MEETING ROOM DURING THE DISCUSSION OF, AND THE VOTE ON, WHETHER A CONFLICT OF INTEREST EXISTS. IF THE EXECUTIVE COMMITTEE DETERMINES A CONFLICT OF INTEREST EXISTS, THE EXECUTIVE COMMITTEE SHALL TAKE APPROPRIATE CORRECTIVE OR DISCIPLINARY ACTIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS' EXECUTIVE COMMITTEE IS CHARGED WITH OVERSIGHT OF EXECUTIVE COMPENSATION. THE EXECUTIVE COMMITTEE, IN CONSULTATION WITH THE BOARD PRESIDENT, ESTABLISHES PERFORMANCE METRICS FOR THE CHIEF EXECUTIVE OFFICER (CEO). FOLLOWING THE CLOSE OF THE YEAR, THE EXECUTIVE COMMITTEE REVIEWS THE RESULT TO DETERMINE THE OVERALL LEVEL OF PERFORMANCE. THE EXECUTIVE COMMITTEE PROPOSES CHANGES IN COMPENSATION FOR THE CEO BASED ON PERFORMANCE OUTCOMES TO THE BOARD FOR APPROVAL. ANY INCREASES IN COMPENSATION FOR KEY MANAGEMENT STAFF ARE PROPOSED BY THE CEO AND APPROVED BY THE BOARD OF DIRECTORS. THE PROCESS WAS LAST CONDUCTED IN JULY 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ANNUAL REPORT, WHICH INCLUDES YEAR-END FINANCIAL INFORMATION, IS SENT TO ALL MEMBERS. ADDITIONALLY, THE ANNUAL REPORT IS AVAILABLE IN THE MEMBERS ONLY AREA OF THE WEBSITE. THE BYLAWS AND POLICY MANUAL ARE AVAILABLE IN THE MEMBER ONLY AREA OF THE WEBSITE, AND GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTING SERVICES 225,567. AUDIO VISUAL 167,075. PAYROLL SERVICES 8,783. 401K PLAN FEES 2,028.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AUDIT COMMITTEE IS RESPONSIBLE FOR THE OVERSIGHT OF THE AUDIT OF THE FINANCIAL STATEMENTS AND SELECTION OF THE INDEPENDENT AUDITORS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>