﻿<?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="2015v2.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2016-11-15T17:10:46-06:00</ReturnTs>
    <TaxPeriodEndDt>2015-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>521186096</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>RUBINO &amp; COMPANY CHARTERED</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>6903 ROCKLEDGE DRIVE SUITE 1200</AddressLine1Txt>
        <CityNm>BETHESDA</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>208171818</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2015-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>520749775</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>AMERICAN ASSOCIATION OF PHYSICS TEACHERS</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>AMER</BusinessNameControlTxt>
      <PhoneNum>3012093330</PhoneNum>
      <USAddress>
        <AddressLine1Txt>ONE PHYSICS ELLIPSE</AddressLine1Txt>
        <CityNm>COLLEGE PARK</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>207403845</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>MICHAEL BROSNAN</PersonNm>
      <PersonTitleTxt>CFO</PersonTitleTxt>
      <PhoneNum>3012093330</PhoneNum>
      <SignatureDt>2016-11-15</SignatureDt>
      <DiscussWithPaidPreparerInd>0</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>PATRICIA A O'MALLEY CPA</PreparerPersonNm>
      <PTIN>P00285909</PTIN>
      <PhoneNum>3015643636</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2015</TaxYr>
    <BuildTS>2017-02-10 21:41:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="9">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>DR BETH CUMMINGHAM</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>ONE PHYSICS ELLIPSE</AddressLine1Txt>
        <CityNm>COLLEGE PARK</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>207403845</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>6013398</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.AAPT.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1958</FormationYr>
      <LegalDomicileStateCd>NY</LegalDomicileStateCd>
      <ActivityOrMissionDesc>SUPPORT AND PROMOTE PHYSICS EDUCATORS THROUGH THE USE OF PUBLICATIONS, RESEARCH MATERIALS, MEETINGS AND WORKSHOPS.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>11</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>11</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>36</TotalEmployeeCnt>
      <TotalVolunteersCnt>16</TotalVolunteersCnt>
      <TotalGrossUBIAmt>98085</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>1672167</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>1791373</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>3877242</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>3774292</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>267165</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>310475</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>17385</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>36627</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>5833959</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>5912767</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>31415</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>47727</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>2345132</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>2466447</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>7637</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>2617666</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>2652383</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>4994213</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>5166557</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>839746</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>746210</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>8331464</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>9025865</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>3334667</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>3567165</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>4996797</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>5458700</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>TO IMPROVE THE QUALITY OF PHYSICS INSTRUCTION AND ENHANCE THE APPRECIATION OF PHYSICS IN OUR CULTUR E. TO ENHANCE THE UNDERSTANDING AND APPRECIATION OF PHYSICS THROUGH TEACHING. AAPT IS A PROFESSIONAL MEMBERSHIP ASSOCIATION OF SCIENTISTS DEDICATED TO ENHANCING THE UNDERSTANDING AND APPRECIATION OF PHYSICS THROUGH TEACHING.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>1805847</ExpenseAmt>
      <RevenueAmt>2474775</RevenueAmt>
      <Desc>PUBLICATION AND DISTRIBUTION OF AMERICAN JOURNAL OF PHYSICS, THE PHYSICS TEACHER, THE E-ANNOUNCER AND VARIOUS TEACHING AIDS.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>1433154</ExpenseAmt>
        <RevenueAmt>1207159</RevenueAmt>
        <Desc>MEETINGS &amp; WORKSHOPS DESIGNED TO OFFER INSTRUCTIONAL AID FOR TEACHERS IN THE FIELD OF PHYSICS AND THE SELECTION AND DEVELOPMENT OF THE HIGH SCHOOL PHYSICS TEAM TO REPRESENT THE UNITED STATES IN THE PHYSICS OLYMPIAD.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>901084</ExpenseAmt>
        <Desc>MEMBERSHIP PROGRAMS ARE RESPONSIBLE FOR THE ADVANCEMENT OF THE TEACHING OF PHYSICS AND THE FURTHERANCE OF APPRECIATION OF THE ROLE OF PHYSICS IN TODAY'S CULTURE.</Desc>
      </ProgSrvcAccomActy3Grp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>770244</ExpenseAmt>
        <GrantAmt>47727</GrantAmt>
        <RevenueAmt>13141</RevenueAmt>
        <Desc>OTHER PROGRAM SERVICES:PROGRAMS THAT PROVIDE OPPORTUNITIES FOR PROFESSIONAL GROWTH OF TEACHERS, INCLUDING ONLINE COLLECTION OF RESOURCES TO SUPPORT THE PHYSICS AND ASTRONOMY COMMUNITY, NEW FACULTY DEVELOPMENT, AND THE ANALYSIS AND INVESTIGATION OF THE ROLE OF UNDERGRADUATE PHYSICSINSTRUCTION AT TWO-YEAR COLLEGES.</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcExpenseAmt>770244</TotalOtherProgSrvcExpenseAmt>
      <TotalOtherProgSrvcGrantAmt>47727</TotalOtherProgSrvcGrantAmt>
      <TotalOtherProgSrvcRevenueAmt>13141</TotalOtherProgSrvcRevenueAmt>
      <TotalProgramServiceExpensesAmt>4910329</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd referenceDocumentId="RetDoc1040000001">1</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">1</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">1</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 referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>0</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd referenceDocumentId="RetDoc1042900001">1</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd referenceDocumentId="RetDoc1042900001">0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="RetDoc1043400001">0</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="RetDoc1043400001">1</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="RetDoc1043400001">0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="RetDoc1043400001">0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>54</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>36</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>1</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>1</Form990TFiledInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>11</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>11</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>1</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</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>
      <StatesWhereCopyOfReturnIsFldCd>NY</StatesWhereCopyOfReturnIsFldCd>
      <OwnWebsiteInd>X</OwnWebsiteInd>
      <OtherWebsiteInd>X</OtherWebsiteInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>MICHAEL BROSNAN</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>3012093301</PhoneNum>
        <USAddress>
          <AddressLine1Txt>1 PHYSICS ELLIPSE</AddressLine1Txt>
          <CityNm>COLLEGE PARK</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>20740</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVEN IONA</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARY ELIZABETH MOGGE</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>JANELLE M BAILEY</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>WOLFGANG CHRISTIAN</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>R STEVEN TURLEY</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>GAY B STEWART</PersonNm>
        <TitleTxt>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>GREGORY PUSKAR</PersonNm>
        <TitleTxt>CHAIR, SECTION REP</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ELAINE GWINN</PersonNm>
        <TitleTxt>VICE CHAIR, SECTION REP</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAN LANDIS MADER</PersonNm>
        <TitleTxt>MEMBER-AT-LARGE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AARON P TITUS</PersonNm>
        <TitleTxt>MEMBER-AT-LARGE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL WILLIAMS</PersonNm>
        <TitleTxt>MEMBER-AT-LARGE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR BETH A CUNNINGHAM</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>202034</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>39461</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL BROSNAN</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>109776</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>30950</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR ROBERT C HILBORN</PersonNm>
        <TitleTxt>ASSOCIATE EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>116442</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>26900</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TERRENCE HUNT</PersonNm>
        <TitleTxt>WEB DEVELOPER</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>100373</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>9880</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ERWIN CAMPBELL</PersonNm>
        <TitleTxt>IT DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>101417</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>9775</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>630042</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>116966</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>5</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>AMER INST OF PHYSICS PUBLISHING LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1305 WALT WHITMAN RD</AddressLine1Txt>
            <CityNm>MELLVILLE</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>11747</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PUBLISHING SERVICES</ServicesDesc>
        <CompensationAmt>352861</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>AMERICAN INSTITUTE OF PHYSICS</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1 PHYSICS ELLIPSE</AddressLine1Txt>
            <CityNm>COLLEGE PARK</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>20740</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>TECHNICAL AND OFFICE SERVICES</ServicesDesc>
        <CompensationAmt>289043</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ALLEN PRESS</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1041 NEW HAMPSHIRE</AddressLine1Txt>
            <CityNm>LAWRENCE</CityNm>
            <StateAbbreviationCd>KS</StateAbbreviationCd>
            <ZIPCd>66044</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PUBLICATION SERVICES</ServicesDesc>
        <CompensationAmt>149845</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DICKINSON COLLEGE</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>COLLEGE LOUTHER ST</AddressLine1Txt>
            <CityNm>CARLISLE</CityNm>
            <StateAbbreviationCd>PA</StateAbbreviationCd>
            <ZIPCd>17013</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>EDITORIAL SERVICES</ServicesDesc>
        <CompensationAmt>108109</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>WEBER STATE UNIVERSITY</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1101 UNIVERSITY CIRCLE</AddressLine1Txt>
            <CityNm>OGDEN</CityNm>
            <StateAbbreviationCd>UT</StateAbbreviationCd>
            <ZIPCd>844081101</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>EDITORIAL SERVICES</ServicesDesc>
        <CompensationAmt>101336</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>5</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>1006974</MembershipDuesAmt>
      <GovernmentGrantsAmt>651579</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>132820</AllOtherContributionsAmt>
      <NoncashContributionsAmt>40018</NoncashContributionsAmt>
      <TotalContributionsAmt>1791373</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>PERIODICALS</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>2555466</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2474775</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>80691</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEETINGS</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>1218826</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1207159</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>11667</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>3774292</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>198766</TotalRevenueColumnAmt>
        <ExclusionAmt>198766</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>7480</TotalRevenueColumnAmt>
        <ExclusionAmt>7480</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>111709</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>0</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>111709</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>111709</TotalRevenueColumnAmt>
        <ExclusionAmt>111709</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <GrossSalesOfInventoryAmt>110910</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>100631</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>10279</TotalRevenueColumnAmt>
        <ExclusionAmt>10279</ExclusionAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>INVESTMENT EARNINGS IN</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>13141</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>13141</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>JOB BANK-CAREER CENTER</Desc>
        <BusinessCd>900004</BusinessCd>
        <TotalRevenueColumnAmt>5727</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>5727</UnrelatedBusinessRevenueAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>18868</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>5912767</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3695075</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>98085</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>328234</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>47727</TotalAmt>
        <ProgramServicesAmt>47727</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>382220</TotalAmt>
        <ProgramServicesAmt>4086</ProgramServicesAmt>
        <ManagementAndGeneralAmt>378134</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>1436539</TotalAmt>
        <ProgramServicesAmt>1004745</ProgramServicesAmt>
        <ManagementAndGeneralAmt>428808</ManagementAndGeneralAmt>
        <FundraisingAmt>2986</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>113724</TotalAmt>
        <ProgramServicesAmt>82168</ProgramServicesAmt>
        <ManagementAndGeneralAmt>31556</ManagementAndGeneralAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>383539</TotalAmt>
        <ProgramServicesAmt>315665</ProgramServicesAmt>
        <ManagementAndGeneralAmt>66698</ManagementAndGeneralAmt>
        <FundraisingAmt>1176</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>150425</TotalAmt>
        <ProgramServicesAmt>86889</ProgramServicesAmt>
        <ManagementAndGeneralAmt>63536</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>25008</TotalAmt>
        <ManagementAndGeneralAmt>25008</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>39718</TotalAmt>
        <ManagementAndGeneralAmt>39718</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>30143</TotalAmt>
        <ManagementAndGeneralAmt>30143</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>300406</TotalAmt>
        <ProgramServicesAmt>284919</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15487</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>25141</TotalAmt>
        <ProgramServicesAmt>21981</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3160</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>389010</TotalAmt>
        <ProgramServicesAmt>291507</ProgramServicesAmt>
        <ManagementAndGeneralAmt>96885</ManagementAndGeneralAmt>
        <FundraisingAmt>618</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>113328</TotalAmt>
        <ProgramServicesAmt>11366</ProgramServicesAmt>
        <ManagementAndGeneralAmt>101962</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>443469</TotalAmt>
        <ProgramServicesAmt>40925</ProgramServicesAmt>
        <ManagementAndGeneralAmt>402544</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>314941</TotalAmt>
        <ProgramServicesAmt>228622</ProgramServicesAmt>
        <ManagementAndGeneralAmt>86319</ManagementAndGeneralAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>457695</TotalAmt>
        <ProgramServicesAmt>443217</ProgramServicesAmt>
        <ManagementAndGeneralAmt>14478</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>24004</TotalAmt>
        <ManagementAndGeneralAmt>24004</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>19321</TotalAmt>
        <ProgramServicesAmt>2238</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17083</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>PUBLICATIONS</Desc>
        <TotalAmt>470199</TotalAmt>
        <ProgramServicesAmt>470199</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>INDIRECT COSTS</Desc>
        <TotalAmt>0</TotalAmt>
        <ProgramServicesAmt>1574075</ProgramServicesAmt>
        <ManagementAndGeneralAmt>-1576932</ManagementAndGeneralAmt>
        <FundraisingAmt>2857</FundraisingAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>5166557</TotalAmt>
        <ProgramServicesAmt>4910329</ProgramServicesAmt>
        <ManagementAndGeneralAmt>248591</ManagementAndGeneralAmt>
        <FundraisingAmt>7637</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>590291</BOYAmt>
        <EOYAmt>2150692</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>414125</BOYAmt>
        <EOYAmt>865881</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>596678</BOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>1001238</BOYAmt>
        <EOYAmt>745101</EOYAmt>
      </AccountsReceivableGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>99446</BOYAmt>
        <EOYAmt>107547</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>175694</BOYAmt>
        <EOYAmt>59498</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>188105</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>129323</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>29399</BOYAmt>
        <EOYAmt>58782</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>2927970</BOYAmt>
        <EOYAmt>4501296</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>2496623</BOYAmt>
        <EOYAmt>523196</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>13872</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>8331464</BOYAmt>
        <EOYAmt>9025865</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>442820</BOYAmt>
        <EOYAmt>613944</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>2413952</BOYAmt>
        <EOYAmt>2595922</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>477895</BOYAmt>
        <EOYAmt>357299</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>3334667</BOYAmt>
        <EOYAmt>3567165</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>3999365</BOYAmt>
        <EOYAmt>4471772</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>509197</BOYAmt>
        <EOYAmt>498693</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <PermanentlyRstrNetAssetsGrp>
        <BOYAmt>488235</BOYAmt>
        <EOYAmt>488235</EOYAmt>
      </PermanentlyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>4996797</BOYAmt>
        <EOYAmt>5458700</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>8331464</BOYAmt>
        <EOYAmt>9025865</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>746210</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-284307</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>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>1751353</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1729285</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1681288</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1672167</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1791373</CurrentTaxYearAmt>
        <TotalAmt>8625466</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>3194928</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3611677</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4698459</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3734847</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3885202</CurrentTaxYearAmt>
        <TotalAmt>19125113</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>4946281</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5340962</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>6379747</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5407014</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>5676575</CurrentTaxYearAmt>
        <TotalAmt>27750579</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus3YearsAmt>10300</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>20000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>20000</CurrentTaxYearAmt>
        <TotalAmt>60300</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus3YearsAmt>10300</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>20000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>20000</CurrentTaxYearAmt>
        <TotalAmt>60300</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>27690279</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>85957</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>86062</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>84024</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>95333</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>206246</CurrentTaxYearAmt>
        <TotalAmt>557622</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>85957</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>86062</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>84024</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>95333</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>206246</CurrentTaxYearAmt>
        <TotalAmt>557622</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus2YearsAmt>7654</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7953</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>102920</CurrentTaxYearAmt>
        <TotalAmt>118527</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>5032238</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5427024</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>6471425</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5510300</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>5985741</CurrentTaxYearAmt>
        <TotalAmt>28426728</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.97410</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.97870</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.01960</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.01600</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Schedule A, Part III, Line 12, Explanation of Other Income:</FormAndLineReferenceDesc>
        <ExplanationTxt>MISCELLANEOUS INCOME</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <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>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>1191233</BeginningYearBalanceAmt>
        <ContributionsAmt>43427</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-22898</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>246991</OtherExpendituresAmt>
        <EndYearBalanceAmt>964771</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1146489</BeginningYearBalanceAmt>
        <ContributionsAmt>681</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>71002</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>26939</OtherExpendituresAmt>
        <EndYearBalanceAmt>1191233</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1014719</BeginningYearBalanceAmt>
        <ContributionsAmt>2187</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>160745</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>31162</OtherExpendituresAmt>
        <EndYearBalanceAmt>1146489</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>920295</BeginningYearBalanceAmt>
        <ContributionsAmt>2345</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>110834</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>18755</OtherExpendituresAmt>
        <EndYearBalanceAmt>1014719</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>873328</BeginningYearBalanceAmt>
        <ContributionsAmt>55834</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>1194</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>10061</OtherExpendituresAmt>
        <EndYearBalanceAmt>920295</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>0.53680</BoardDesignatedBalanceEOYPct>
      <PrmnntEndowmentBalanceEOYPct>0.22910</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.23400</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>188105</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>129323</DepreciationAmt>
        <BookValueAmt>58782</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>58782</TotalBookValueLandBuildingsAmt>
      <CloselyHeldEquityInterestsGrp>
        <BookValueAmt>523196</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </CloselyHeldEquityInterestsGrp>
      <TotalBookValueSecuritiesAmt>523196</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>CAPITAL LEASE OBLIGATION</Desc>
        <Amt>10490</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>ACCRUED POSTRETIREMENT BENEFIT</Desc>
        <Amt>346809</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>357299</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>5729091</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-284307</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>100631</OtherRevenueAmt>
      <RevenueNotReportedAmt>-183676</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>5912767</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>5912767</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>5267188</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>100631</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>100631</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>5166557</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>5166557</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION CLASSIFIES AS PERMANENTLY RESTRICTED NET ASSETS (A) THE ORIGINAL VALUE OF GIFTS DONATED TO THE PERMANENT ENDOWMENT, (B) THE ORIGINAL VALUE OF SUBSEQUENT GIFTS TO THE PERMANENT ENDOWMENT, AND (C) ACCUMULATIONS TO THE PERMANENT ENDOWMENT MADE IN ACCORDANCE WITH THE DIRECTION OF THE APPLICABLE DONOR GIFT INSTRUMENT AT THE TIME THE ACCUMULATION IS ADDED TO THE FUND. THE REMAINING PORTION OF THE DONOR-RESTRICTED ENDOWMENT FUND THAT IS NOT CLASSIFIED IN PERMANENTLY RESTRICTED NET ASSETS IS CLASSIFIED AS TEMPORARILY RESTRICTED NET ASSETS, UNTIL THOSE AMOUNTS ARE APPROPRIATED FOR EXPENDITURES BY THE ASSOCIATION IN A MANNER CONSISTENT WITH THE STANDARD OF PRUDENCE PRESCRIBED BY UPMIFA. BOARD DESIGNATED NET ASSETS AT DECEMBER 31, 2013 ANF 2012, WITH EXECUTIVE BOARD APPROVAL, ARE AVAILABLE FOR THE FOLLOWING PURPOSES: TO SUPPORT SPECIAL ACTIVITIES IN THE AREA OF PHYSICS TEACHING, TO SUPPORT THE ADVANCEMENT OF PHYSICS EDUCATION AND OTHER PURPOSE RESTRICTION PROGRAMS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION IS GENERALLY EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. AS SUCH, IT IS EXEMPT FROM FEDERAL INCOME TAXES ON ALL BUT UNRELATED BUSINESS INCOME. UNDER THE CURRENT INTERNAL REVENUE SERVICE (IRS) REGULATIONS, ADVERTISING AND OTHER NON-EXEMPT REVENUE EARNED IS SUBJECT TO UNRELATED BUSINESS INCOME TAX. FOR THE YEARS ENDED DECEMBER 31, 2015 AND 2014, THE ASSOCIATION HAD NO NET UNRELATED BUSINESS INCOME. HOWEVER, TAX YEARS ENDED DECEMBER 31, 2012 THROUGH 2014 REMAIN OPEN TO EXAMINATION BY THE TAXING JURISDICTIONS TO WHICH THE ASSOCIATION IS SUBJECT, AND THEY HAVE NOT BEEN EXTENDED BEYOND THE APPLICABLE STATUTE OF LIMITATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF GOODS SOLD 100,631.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF GOODS SOLD 100,631.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 MELBA NEWELL PHILLIPS AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>5000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 KLOPSTEG AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 EXCELL IN PRE COLLEGE PAUL ZITZEWITZ AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 EXCELLENCE IN PHYSICS EDUCATION AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 MILIKAN AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 ORESTED AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>NEW TEACHER FUND MEMBERSHIPS</GrantTypeTxt>
        <RecipientCnt>22</RecipientCnt>
        <CashGrantAmt>1056</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STUDENT FUND AND OTHER</GrantTypeTxt>
        <RecipientCnt>306</RecipientCnt>
        <CashGrantAmt>14688</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MEMBER SPONSORSHIP - MEMBERSHIP</GrantTypeTxt>
        <RecipientCnt>27</RecipientCnt>
        <CashGrantAmt>1295</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2015 HIGH SCHOOL PHOTO CONTEST 2ND PLACE</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>450</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FULLER FUND MEMBERSHIPS</GrantTypeTxt>
        <RecipientCnt>12</RecipientCnt>
        <CashGrantAmt>3168</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>YAMANI FUND INTERNATIONAL MEMBERSHIPS</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>546</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>PHYSICS EDUCATION RESEARCH GRANT</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>WINTER MEETING CHILD CARE GRANT</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>1890</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SUMMER MEETING CHILD CARE GRANT</GrantTypeTxt>
        <RecipientCnt>9</RecipientCnt>
        <CashGrantAmt>3134</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>IT IS THE GOAL OF THE AAPT TO ENCOURAGE HIGH SCHOOL TEACHERS TO EXPERIMENT AND IMPROVE ON THEIR TEACHING PRACTICES. IT IS OUR BELIEF THAT AS TEACHING PRACTICE IMPROVES, THEN PHYSICS ENROLLMENT AND EXCITEMENT AMONG STUDENTS INCREASE AS A RESULT, WE OFFER THE HIGH SCHOOL PHYSIC TEACHER GRANT. WE HOPE THAT THIS GRANT CAN PROVIDE THE FUNDS TO KICK START THE IMPLEMENTATION OF THESE PRACTICES. THE GRANT(S) ARE GIVEN EACH YEAR TO THE TEACHERS WHOSE PROPOSAL MEETS THE GOAL OF THE GRANT THAT IS, THE PROCEDURE SHOULD RESULT IN BETTER TEACHING PRACTICE, STUDENT UNDERSTANDING AND INTEREST, AND/OR INCREASED ENROLLMENT. ALSO, THE PROPOSAL SHOULD CONTAIN SOME INNOVATIVE IDEAS. FOR EXAMPLE, THE PROPOSAL MAY USE A NEW TEACHING METHOD OR AN ADAPTATION OF AN EXISTING IDEA. THE AAPT EXECUTIVE BOARD OFFERS SCHOLARSHIPS FOR FUTURE HIGH SCHOOL PHYSICS TEACHERS. THESE SCHOLARSHIPS, SUPPORTED BY AN ENDOWMENT FUNDED BY BARBARA LOTZE, ARE AVAILABLE ONLY TO US CITIZENS ATTENDING US SCHOOLS, UNDERGRADUATE STUDENTS ENROLLED, OR PLANNING TO ENROLL, IN PHYSICS TEACHER PREPARATION CURRICULA AND HIGH SCHOOL SENIORS ENTERING SUCH PROGRAMS ARE ELIGIBLE. SUCCESSFUL APPLICANTS RECEIVE A STIPEND OF UP TO $2,000. THE SCHOLARSHIP MAY BE GRANTED TO AN INDIVIDUAL FOR EACH OF FOUR YEARS. APPLICATIONS WILL BE ACCEPTED AT ANY TIME AND WILL BE CONSIDERED FOR RECOMMENDATION TO THE EXECUTIVE BOARD AT EACH AAPT WINTER MEETING. ALL APPLICATIONS IN WHICH ALL MATERIALS, INCLUDING LETTERS OF RECOMMENDATION, ARE RECEIVED BY DECEMBER 1 WILL BE CONSIDERED FOR RECOMMENDATION AT THE WINTER MEETING OF THE AAPT EXECUTIVE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <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>DR BETH A CUNNINGHAM</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>202034</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>18630</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>20831</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>241495</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <IntellectualPropertyGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>40018</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </IntellectualPropertyGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>ORGANIZATION BYLAWS WERE UPDATED TO COMPLY WITH NEW YORK STATE NON-PROFIT LAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERSHIP OF THE ASSOCIATION IS MADE UP OF FOUR YEAR UNIVERSITY/COLLEGE AND TWO YEAR COLLEGE PROFESSORS AND EDUCATORS OF THE PHYSICS SCIENCES IN THE UNITED STATES AND INTERNATIONALLY. THE MEMBERSHIP ALSO INCLUDES HIGH SCHOOL EDUCATORS, STUDENTS OF PHYSICS/SCIENCES AND RETIRED MEMBERS IN THE UNITED STATES AND INTERNATIONALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>THE NOMINATION COMMITTEE WILL NOMINATE MEMBERS OF THE GOVERNING BODY WHO THEN ARE ELECTED BY THE GENERAL MEMBERSHIP BY BALLOT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 WILL BE POSTED ON THE BOARD WEBSITE AND INFORMED BY EMAIL. THE BOARD MEMBER IS ASKED TO INQUIRE, REVIEW AND ASK QUESTIONS RELATED TO THE TAX RETURN. AFTER ALL BOARD ISSUES HAVE BEEN RESPONDED TO, THE 990 TAX RETURN WILL BE FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING BODY IS REQUIRED TO RESPOND ELECTRONICALLY TO THE CONFLICT OF INTEREST QUESTIONAIRE ON A YEARLY BASIS. ALL NEW EXECUTIVE BOARD MEMBERS MUST SUBMIT A CONFLICT OF INTEREST STATEMENT PRIOR TO THE MEMBER START DATE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE REVIEWS COMPENSATION OF THE EXECUTIVE OFFICER AND KEY EMPLOYEES USING COMPARABILITY DATA OF SIMILAR SIZE NONPROFIT ORGANIZATIONS, USING PUBLISHED SALARY GUIDES. THE COMPENSATION DISCUSSIONS ARE ALSO HELD BY THE ENTIRE BOARD. THEY ARE RECORDED IN EXECUTIVE SESSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DOCUMENTS ARE POSTED ON THE ORGANIZATION'S WEBSITE AND COPIES PROVIDED ON REQUEST. INSPECTIONS ARE AVAILABLE AT THE ASSOCIATION'S NATIONAL OFFICE BY APPOINTMENT. THE DOCUMENTS ARE AVAILABLE FOR THE SAME PERIOD OF DISCLOSURE AS SET FORTH IN SECTION 6104(D).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS DID NOT CHANGE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AMERICAN CENTER FOR PHYSICS</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1 PHYSICS ELLIPSE</AddressLine1Txt>
          <CityNm>COLLEGE PARK</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>20740</ZIPCd>
        </USAddress>
        <EIN>520172905</EIN>
        <PrimaryActivitiesTxt>OPERATION OF FACILITY- AMERICAN CENTER OF PHYSICS</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MD</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 11b, II</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>1</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>1</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AMERICAN CENTER FOR PHYSICS INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>K</TransactionTypeTxt>
        <InvolvedAmt>460567</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FAIR MARKET VALUE</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>