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        <PersonNm>JENNIFER THOMPSON</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KENNETH HUFF</PersonNm>
        <TitleTxt>DIRECTOR (SEE SCHEDULE O)</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>150</ReportableCompFromOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH ALLAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN OLSON</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CARRIE JONES</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DENNIS SCHATZ</PersonNm>
        <TitleTxt>DIRECTOR (SEE SCHEDULE O)</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>15445</ReportableCompFromOrgAmt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ERIC BRUNSELL</PersonNm>
        <TitleTxt>DIRECTOR (SEE SCHEDULE O)</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>1588</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL ADAMS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>NATACIA CAMPBELL</PersonNm>
        <TitleTxt>DIRECTOR (SEE SCHEDULE O)</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>230</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>EMILY SCHOERNING</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAVID EVANS</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
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        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>286730</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>47784</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MOIRA FATHY BAKER</PersonNm>
        <TitleTxt>DEPUTY EXEC. DIR., CFO &amp; COO</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>217246</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>43643</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LEROY LEE</PersonNm>
        <TitleTxt>TREASURER (SEE SCHEDULE O)</TitleTxt>
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        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>12300</ReportableCompFromOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAVID BEACOM UNTIL JAN 2018</PersonNm>
        <TitleTxt>PUBLISHER, CHIEF CONTENT OFFICER</TitleTxt>
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        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>187736</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AL BYERS UNTIL JAN 2018</PersonNm>
        <TitleTxt>ASSOCIATE EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>46522</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DELORES HOWARD</PersonNm>
        <TitleTxt>ASSOCIATE EXECUTIVE DIRECTOR</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>32255</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TODD WALLACE</PersonNm>
        <TitleTxt>ASSISTANT EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>131918</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>43057</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JODI PETERSON</PersonNm>
        <TitleTxt>ASSISTANT EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>37238</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KIMBERLY STILWELL</PersonNm>
        <TitleTxt>MANAGER, NEW BUSINESS DEVELOPMENT</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>217361</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>47162</OtherCompensationAmt>
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      <TotalReportableCompFromOrgAmt>1570955</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>326740</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>18</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>MARRIOTT INTERNATIONAL</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 402642</AddressLine1Txt>
            <CityNm>ATLANTA</CityNm>
            <StateAbbreviationCd>GA</StateAbbreviationCd>
            <ZIPCd>30384</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>HOTEL SERVICES - MEETING &amp; CATERING</ServicesDesc>
        <CompensationAmt>733285</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PBD INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 930108</AddressLine1Txt>
            <CityNm>ATLANTA</CityNm>
            <StateAbbreviationCd>GA</StateAbbreviationCd>
            <ZIPCd>30004</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>WAREHOUSE &amp; PUB. FULFILLMENT</ServicesDesc>
        <CompensationAmt>651133</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>WALSWORTH PUBLISHING COMPANY</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2180 MAIDEN LN</AddressLine1Txt>
            <CityNm>ST JOSEPH</CityNm>
            <StateAbbreviationCd>MI</StateAbbreviationCd>
            <ZIPCd>49085</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PUBLISHING &amp; PRINTING SERVICES</ServicesDesc>
        <CompensationAmt>573994</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>NATIONAL INVENTOR'S HALL OF FAME</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>3701 HIGHLAND PARK NW</AddressLine1Txt>
            <CityNm>NORTH CANTON</CityNm>
            <StateAbbreviationCd>OH</StateAbbreviationCd>
            <ZIPCd>44720</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>SUBCONTRACTOR</ServicesDesc>
        <CompensationAmt>359433</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>TECHNOLOGY EXPRESS</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>820 MIDPOINT DR</AddressLine1Txt>
            <CityNm>OFALLON</CityNm>
            <StateAbbreviationCd>MO</StateAbbreviationCd>
            <ZIPCd>63366</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>AUDIO VISUAL SOLUTIONS</ServicesDesc>
        <CompensationAmt>199492</CompensationAmt>
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      <CntrctRcvdGreaterThan100KCnt>27</CntrctRcvdGreaterThan100KCnt>
      <GovernmentGrantsAmt>4603071</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>4646915</AllOtherContributionsAmt>
      <NoncashContributionsAmt>46000</NoncashContributionsAmt>
      <TotalContributionsAmt>9249986</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>CONFERENCES/MEETINGS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>6231979</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4098110</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>134995</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>1998874</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>3012458</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3012458</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>PROF. DEVELOPMENT</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1275622</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1275622</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SPONSORSHIP/ADVERTISING</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>851843</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>261842</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>590001</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SCILINKS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>152938</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>152938</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>11524840</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>193576</TotalRevenueColumnAmt>
        <ExclusionAmt>193576</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>49614</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>13994</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>35620</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <GrossRentsGrp>
        <RealAmt>435038</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>311724</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>123314</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>123314</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>12713</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>110601</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>900138</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>818109</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>82029</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>82029</TotalRevenueColumnAmt>
        <ExclusionAmt>82029</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <GrossSalesOfInventoryAmt>5362435</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>1988710</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>3373725</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3351165</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>22560</ExclusionAmt>
      </NetIncomeOrLossGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>24597084</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12152135</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>751703</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2443260</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>773916</TotalAmt>
        <ProgramServicesAmt>773916</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>2316560</TotalAmt>
        <ProgramServicesAmt>2316560</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>1087966</TotalAmt>
        <ProgramServicesAmt>359737</ProgramServicesAmt>
        <ManagementAndGeneralAmt>721342</ManagementAndGeneralAmt>
        <FundraisingAmt>6887</FundraisingAmt>
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        <TotalAmt>7266561</TotalAmt>
        <ProgramServicesAmt>5125520</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2002804</ManagementAndGeneralAmt>
        <FundraisingAmt>138237</FundraisingAmt>
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      <PensionPlanContributionsGrp>
        <TotalAmt>691225</TotalAmt>
        <ProgramServicesAmt>520877</ProgramServicesAmt>
        <ManagementAndGeneralAmt>156578</ManagementAndGeneralAmt>
        <FundraisingAmt>13770</FundraisingAmt>
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      <OtherEmployeeBenefitsGrp>
        <TotalAmt>1797699</TotalAmt>
        <ProgramServicesAmt>1025267</ProgramServicesAmt>
        <ManagementAndGeneralAmt>744990</ManagementAndGeneralAmt>
        <FundraisingAmt>27442</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>597489</TotalAmt>
        <ProgramServicesAmt>420449</ProgramServicesAmt>
        <ManagementAndGeneralAmt>165730</ManagementAndGeneralAmt>
        <FundraisingAmt>11310</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>46658</TotalAmt>
        <ProgramServicesAmt>18792</ProgramServicesAmt>
        <ManagementAndGeneralAmt>27866</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>76430</TotalAmt>
        <ManagementAndGeneralAmt>76430</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>138</TotalAmt>
        <ManagementAndGeneralAmt>138</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>2316028</TotalAmt>
        <ProgramServicesAmt>2061539</ProgramServicesAmt>
        <ManagementAndGeneralAmt>234989</ManagementAndGeneralAmt>
        <FundraisingAmt>19500</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>763877</TotalAmt>
        <ProgramServicesAmt>745233</ProgramServicesAmt>
        <ManagementAndGeneralAmt>18644</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>1483998</TotalAmt>
        <ProgramServicesAmt>1367266</ProgramServicesAmt>
        <ManagementAndGeneralAmt>113995</ManagementAndGeneralAmt>
        <FundraisingAmt>2737</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>390003</TotalAmt>
        <ProgramServicesAmt>139587</ProgramServicesAmt>
        <ManagementAndGeneralAmt>250416</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>427550</TotalAmt>
        <ProgramServicesAmt>503298</ProgramServicesAmt>
        <ManagementAndGeneralAmt>-89532</ManagementAndGeneralAmt>
        <FundraisingAmt>13784</FundraisingAmt>
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      <TravelGrp>
        <TotalAmt>1263199</TotalAmt>
        <ProgramServicesAmt>798513</ProgramServicesAmt>
        <ManagementAndGeneralAmt>451213</ManagementAndGeneralAmt>
        <FundraisingAmt>13473</FundraisingAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>2076986</TotalAmt>
        <ProgramServicesAmt>2038643</ProgramServicesAmt>
        <ManagementAndGeneralAmt>31422</ManagementAndGeneralAmt>
        <FundraisingAmt>6921</FundraisingAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>26301</TotalAmt>
        <ManagementAndGeneralAmt>26301</ManagementAndGeneralAmt>
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      <DepreciationDepletionGrp>
        <TotalAmt>297416</TotalAmt>
        <ProgramServicesAmt>75091</ProgramServicesAmt>
        <ManagementAndGeneralAmt>222325</ManagementAndGeneralAmt>
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      <InsuranceGrp>
        <TotalAmt>120354</TotalAmt>
        <ProgramServicesAmt>74291</ProgramServicesAmt>
        <ManagementAndGeneralAmt>46063</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>UBI TAXES</Desc>
        <TotalAmt>14252</TotalAmt>
        <ManagementAndGeneralAmt>14252</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>EQUIP. RENTAL &amp; MAINT.</Desc>
        <TotalAmt>959594</TotalAmt>
        <ProgramServicesAmt>886879</ProgramServicesAmt>
        <ManagementAndGeneralAmt>45665</ManagementAndGeneralAmt>
        <FundraisingAmt>27050</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PRINTING &amp; PUBLICATIONS</Desc>
        <TotalAmt>777321</TotalAmt>
        <ProgramServicesAmt>773321</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4000</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MERCHANT FEES</Desc>
        <TotalAmt>235448</TotalAmt>
        <ProgramServicesAmt>55</ProgramServicesAmt>
        <ManagementAndGeneralAmt>235393</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
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      <GrossInvestmentIncome170Grp>
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        <CurrentTaxYearAmt>622557</CurrentTaxYearAmt>
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        <CurrentYearMinus2Amt>1000000</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>1000000</CurrentYearMinus1Amt>
        <CurrentYearAmt>1000000</CurrentYearAmt>
        <TotalAmt>4000000</TotalAmt>
      </AvgLobbyingNontaxableAmountGrp>
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      <AvgTotalLobbyingExpendGrp>
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        <CurrentYearMinus1Amt>184109</CurrentYearMinus1Amt>
        <CurrentYearAmt>178190</CurrentYearAmt>
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      <AvgGrassrootsNontaxableGrp>
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        <CurrentYearMinus2Amt>250000</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>250000</CurrentYearMinus1Amt>
        <CurrentYearAmt>250000</CurrentYearAmt>
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      <OtherLiabilitiesOrgGrp>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <NetUnrealizedGainsInvstAmt>353781</NetUnrealizedGainsInvstAmt>
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      <RevenueSubtotalAmt>24596946</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>138</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>138</RevenueNotReportedFinclStmtAmt>
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      <InvestmentExpensesNotIncld2Amt>138</InvestmentExpensesNotIncld2Amt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>FOR THE YEAR ENDED MAY 31, 2018, THE ASSOCIATION HAS DOCUMENTED ITS CONSIDERATION OF FASB ASC 740-10, INCOME TAXES, THAT PROVIDES GUIDANCE FOR REPORTING UNCERTAINTY IN INCOME TAXES AND HAS DETERMINED THAT NO MATERIAL UNCERTAIN TAX POSITIONS QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
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        <CashGrantAmt>50100</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SHUGRUE AWARDS</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MAITLAND P. SIMMONS AWARDS</GrantTypeTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <ValuationMethodUsedDesc>PURCHASE AMOUNT</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>SAVINGS BONDS, COMPUTERS</NonCashAssistanceDesc>
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      <GrantsOtherAsstToIndivInUSGrp>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <ValuationMethodUsedDesc>PURCHASE AMOUNT</ValuationMethodUsedDesc>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <ValuationMethodUsedDesc>PURCHASE AMOUNT</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>TRAVEL EXPENSES, STIPENDS</NonCashAssistanceDesc>
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      <GrantsOtherAsstToIndivInUSGrp>
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      <GrantsOtherAsstToIndivInUSGrp>
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        <NonCashAssistanceDesc>AIRLINE TICKET VOUCHERS</NonCashAssistanceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>NSTA GRANTEES ARE SELECTED BASED ON A VARIETY OF CRITERION DEPENDING ON INDIVIDUAL PROGRAM REQUIREMENTS. ALL RECIPIENTS OF NSTA GRANT FUNDS MUST SUBMIT A PROPOSAL AND/OR BUDGET TO SUPPORT AND EXPLAIN THE NEED AND USE OF FUNDS. GRANTEE SUBMISSIONS ARE REVIEWED AND EVALUATED BY THE APPROPRIATE PROGRAM DIRECTOR, DESIGNEE OR COMMITTEE. FOR THOSE PROGRAMS THAT OFFER AWARDS, EACH PROGRAM HAS A SET OF CRITERIA FOR DETERMINING THE AWARD WINNER APPROPRIATE TO THEIR AWARD PROGRAM. NSTA BUSINESS OFFICE STAFF IS RESPONSIBLE FOR MONITORING THE FOLLOWING GRANTEE ACTIVITIES -VERIFY THE DEVELOPMENT OF THE SUBGRANT DOCUMENTS TO ENSURE INCLUSION OF ALL APPROPRIATE REGULATIONS, REQUIREMENTS, AND DISCLOSURES - REVIEW ALL CERTIFICATIONS, REPORTS AND CORRESPONDENCE CONCERNING AUDIT COMPLIANCE - MONITOR PERIODIC PROGRESS REPORTS AND INVOICES (IF APPLICABLE) FROM SUBGRANTEES FOR COMPLIANCE WITH THE TERMS OF THE AGREEMENT - DISSATISFACTION WITH SUBGRANTEE PROGRESS OR INVOICING METHODS IS REPORTED TO APPROPRIATE NSTA ASSOCIATE DIRECTOR FOR DISCIPLINARY ACTION - MONITORING SUBGRANTEE BUDGETS, WHICH INCLUDES REQUESTING SUPPORTING DOCUMENTATION TO DETERMINE WHETHER EXPENSES ARE ALLOWABLE AND WITHIN THE SCOPE OF THE PROJECT.</ExplanationTxt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>216815</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>AL BYERS UNTIL JAN 2018</PersonNm>
        <TitleTxt>ASSOCIATE EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>166913</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>18756</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>27766</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>213435</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DELORES HOWARD</PersonNm>
        <TitleTxt>ASSOCIATE EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>141224</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15708</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>16547</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>173479</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>TODD WALLACE</PersonNm>
        <TitleTxt>ASSISTANT EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>131918</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14930</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>28127</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>174975</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JODI PETERSON</PersonNm>
        <TitleTxt>ASSISTANT EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>128686</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14525</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22713</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>165924</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KIMBERLY STILWELL</PersonNm>
        <TitleTxt>MANAGER, NEW BUSINESS DEVELOPMENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>66228</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>151133</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>20777</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>26385</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>264523</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>BONUS COMPENSATION IS REFLECTED IN PART II, COLUMN (B)(II).</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <ClothingAndHouseholdGoodsGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <NoncashContributionsRptF990Amt>3000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </ClothingAndHouseholdGoodsGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>AIRLINE TKTS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>28000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>BADGE HOLDERS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>15000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <Form8283ReceivedCnt>0</Form8283ReceivedCnt>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>1</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS COLUMN REPRESENTS THE NUMBER OF CONTRIBUTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 32B:</FormAndLineReferenceDesc>
        <ExplanationTxt>NSTA HAS A GIFT ACCEPTANCE POLICY FOR ANY NON-CASH DONATIONS OVER $75.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>NSTA HAS INDIVIDUAL, INSTITUTIONAL, AND OTHER DESIGNATED MEMBERSHIP CATEGORIES. ALL INDIVIDUAL MEMBERS IN GOOD STANDING IN ANY ESTABLISHED CATEGORY ARE ELIGIBLE TO VOTE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECTORS ARE ELECTED BY ELECTRONIC BALLOTS. BALLOTS ARE EMAILED TO EACH VOTING MEMBER OF NSTA AT LEAST THIRTY DAYS PRIOR TO THE LAST DATE FOR RETURN OF BALLOTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>BYLAW CHANGES MUST BE APPROVED BY THE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DIRECTOR OF ACCOUNTING/CONTROLLER COMPILED THE NECESSARY DATA TO PREPARE THE FEDERAL FORM 990 WHICH WAS REVIEWED BY THE COO/CFO. NSTA THEN ENGAGED AN INDEPENDENT CPA FIRM TO PREPARE THE 990. THE DRAFT FORM 990 WAS FIRST REVIEWED BY THE DIRECTOR OF ACCOUNTING/CONTROLLER AND THE COO/CFO. THE NEXT LEVEL OF REVIEW CONTINUED TO NSTA'S AUDIT COMMITTEE. THE FINAL 990 WAS PROVIDED TO THE BOARD. ONCE REVIEWED AND APPROVED, THE 990 WAS SENT BACK TO THE CPA FIRM IN ORDER TO BE FINALIZED AND SUBMITTED TO TO THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>FOR NSTA EMPLOYEES ALL NEW EMPLOYEES AND EXISTING EMPLOYEES ARE ASKED TO READ THE POLICY AND SIGN AN ACKNOWLEDGMENT THAT THEY HAVE READ THE POLICY AND AGREE TO ABIDE BY ITS TERMS, AND TO FILL OUT A DISCLOSURE STATEMENT EITHER AFFIRMING NO CONFLICTS OR LISTING CONFLICTS OF INTEREST. THESE TASKS ARE COMPLETED BY EACH EMPLOYEE INITIALLY AT THE TIME OF HIRE. WHEN OTHER DOCUMENTS ARE COMPLETED IN THE FALL EACH YEAR, HUMAN RESOURCES (HR) SENDS OUT THE POLICY AND STATEMENT AGAIN TO EACH EMPLOYEE REQUESTING THAT THEY UPDATE THEIR FILES BY LISTING ON THE STATEMENT ANY NEW POTENTIAL CONFLICTS OR TO AFFIRM THEY HAVE NO CONFLICTS AND ALSO BY RESIGNING THE ACKNOWLEDGMENT AND RETURNING TO HR. HR FORWARDS ANY COMPLETED DISCLOSURE STATEMENTS WHICH LIST CONFLICTS TO THE EXECUTIVE DIRECTOR FOR HIS REVIEW AND APPROPRIATE ACTION. FOR NSTA BOARD AND RELEVANT COMMITTEE MEMBERS, THE BOARD MEMBERS ARE GIVEN THE CONFLICT OF INTEREST POLICY DURING THE SUMMER BOARD MEETING. THEY ARE ASKED TO READ AND PRINT THE SIGNATURE PAGE AND RETURN THE FORM DURING THE MEETING. THIS MEETING IS THE FIRST OPPORTUNITY FOR THE ENTIRE GROUP TO VIEW, SIGN AND THEN RETURN IT. THE SIGNED FORMS ARE FILED IN THE EXECUTIVE OFFICE. COMMITTEES ARE PROVIDED THE POLICY AT THEIR FIRST MEETING OF EACH FISCAL YEAR OR AT THE BEGINNING OF THE FISCAL YEAR BY MAIL OR E-MAIL. IF A CONFLICT ARISES, THE INTERESTED PERSON HAVING A CONFLICT OR POTENTIAL CONFLICT OF INTEREST DISCLOSES ALL FACTS MATERIAL TO THE CONFLICT OF INTEREST. THE INTERESTED PERSON DOES NOT PARTICIPATE IN OR HEAR THE BOARD OF DIRECTORS OR COMMITTEE'S DISCUSSION OF THE MATTER EXCEPT TO DISCLOSE THE MATERIAL FACTS AND TO RESPOND TO QUESTIONS. THE BOARD OF DIRECTORS OR COMMITTEE, IF APPLICABLE, DETERMINES WHETHER THE DISCLOSED INTEREST IS SUCH THAT NSTA (I) SHOULD NOT PROCEED WITH THE PROPOSED CONTRACT, TRANSACTION OR ARRANGEMENT, (II) SHOULD MODIFY THE PROPOSED CONTRACT, TRANSACTION OR ARRANGEMENT TO ELIMINATE THE CONFLICT, (III) SHOULD SEEK ANOTHER EQUALLY ADVANTAGEOUS CONTRACT, TRANSACTION OR ARRANGEMENT THAT DOES NOT PRESENT A CONFLICT OF INTEREST, OR (IV) SHOULD TAKE SUCH OTHER MEASURES DEEMED TO BE IN THE INTEREST OF NSTA.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>FOR EQUITABLE SALARY ADJUSTMENTS AT HIGHER TIER LEVELS OF MANAGEMENT, THE HR DIRECTOR PROVIDES SALARY COMPARISONS OF SIMILAR POSITIONS, USUALLY DRAWN FROM THE MOST RECENTLY PUBLISHED NON-PROFIT SURVEYS, AND/OR COMPARISONS WITH SIMILAR EXECUTIVE POSITIONS' COMPENSATION INFORMATION AS DRAWN FROM PUBLICLY ACCESSIBLE 990 FORMS FILED BY SIMILAR NONPROFITS. THESE COMPARISONS ARE PRODUCED IN SPREADSHEET FORM AND ARE PROVIDED TO THE EXECUTIVE DIRECTOR AND EXECUTIVE STAFF AT NSTA FOR INTERNAL SALARY DECISIONS AND TO THE BOARD FOR EXECUTIVE DIRECTOR SALARY DECISIONS. CURRENTLY THE BOARD ONLY APPROVES THE EXECUTIVE DIRECTOR SALARY, IN CLOSED SESSION. THE PRESIDENT THEN PROVIDES THE HR DIRECTOR WITH A LETTER AUTHORIZING ANY CHANGE TO THE EXECUTIVE DIRECTOR SALARY. THE EXECUTIVE DIRECTOR HAS APPROVED THE SALARIES OF THE CFO AND OTHER EXECUTIVE STAFF. THE SALARY COMPARISONS FOR THE CFO AND THE OTHER ASSOCIATE EXECUTIVE DIRECTOR POSITIONS ARE PROVIDED TO THE EXECUTIVE DIRECTOR FOR REVIEW PRIOR TO ANY COMPENSATION REVISIONS OTHER THAN ORGANIZATION-WIDE COST OF LIVING ADJUSTMENTS. THE LAST SALARY REVIEW TOOK PLACE IN JUNE 2018.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NSTA'S BYLAWS, OPERATING CONFLICT OF INTEREST, AND WHISTLEBLOWER POLICIES ARE AVAILABLE TO THE PUBLIC ON ITS MAIN WEBSITE. ALL GOVERNING DOCUMENTS AND POLICIES ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTUARIAL GAIN ON POSTRETIREMENT BENEFITS 148,035.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, SECTION A:</FormAndLineReferenceDesc>
        <ExplanationTxt>SOME BOARD MEMBERS RECEIVE STIPENDS FROM NSTA FOR THEIR WORK RELATED TO STUDENT COMPETITIONS. THIS COMPENSATION IS NOT RELATED TO EITHER INDIVIDUAL'S POSITION ON THE BOARD. THE PRESIDENT, PRESIDENT-ELECT, AND RETIRING PRESIDENT, HOWEVER, DO RECEIVE COMPENSATION RELATED TO HIS/HER POSITION ON THE BOARD. THIS COMPENSATION HAS BEEN REFLECTED ON PART VII, SECTION A.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>1836 WILSON LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1836 WILSON BLVD</AddressLine1Txt>
          <CityNm>ARLINGTON</CityNm>
          <StateAbbreviationCd>VA</StateAbbreviationCd>
          <ZIPCd>22201</ZIPCd>
        </USAddress>
        <EIN>526055229</EIN>
        <PrimaryActivitiesTxt>MANAGING THE CONSTRUCTION OF A POTENTIAL NEW OFFICE BUILDING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>VA</LegalDomicileStateCd>
        <TotalIncomeAmt>0</TotalIncomeAmt>
        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NSTA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>