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        <PersonNm>MARY ANN GROETSEMA</PersonNm>
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          <USAddress>
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      <ContractorCompensationGrp>
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      <ContractorCompensationGrp>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
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          <USAddress>
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        </ContractorAddress>
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      <ProgramServiceRevenueGrp>
        <Desc>CONFERENCES</Desc>
        <BusinessCd>541800</BusinessCd>
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      <ProgramServiceRevenueGrp>
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        <BusinessCd>519100</BusinessCd>
        <TotalRevenueColumnAmt>1587493</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1587493</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>JOURNAL, PUBLICATIONS</Desc>
        <BusinessCd>541800</BusinessCd>
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        <UnrelatedBusinessRevenueAmt>509983</UnrelatedBusinessRevenueAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>SPONSORSHIPS</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>262670</ExclusionAmt>
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      <TotalOthProgramServiceRevGrp>
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        <RelatedOrExemptFuncIncomeAmt>236995</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>692872</ExclusionAmt>
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        <ExclusionAmt>342840</ExclusionAmt>
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        <ExclusionAmt>84245</ExclusionAmt>
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      <OtherRevenueMiscGrp>
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        <BookValueAmt>373308</BookValueAmt>
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      <OtherLandBuildingsGrp>
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        <Desc>DEFERRED RENT</Desc>
        <Amt>1141460</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED COMPENSATION LIABILITY</Desc>
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      <OtherLiabilitiesOrgGrp>
        <Desc>DUE TO AFFILIATES</Desc>
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      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT HAS CONCLUDED THAT ALL ENTITIES HAVE MAINTAINED THEIR EXEMPT STATUS AND THERE ARE NO SIGNIFICANT UNCERTAIN TAX POSITIONS AS OF DECEMBER 31, 2014.</ExplanationTxt>
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    </IRS990ScheduleD>
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        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>EDUCATIONAL CONFERENCES</SpecificServicesProvidedTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARY ELLEN BRENNAN</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CAROL TOBIN</PersonNm>
        <TitleTxt>DIRECTOR, GLOBAL EDUCATION</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>VICTORIA YOBP</PersonNm>
        <TitleTxt>MANAGING DIRECTOR, PROFESSIONAL COMM</TitleTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION HAS A WRITTEN POLICY RELATED TO FIRST-CLASS TRAVEL WHICH STATES IT IS PERMITTED WHEN FLIGHT TIME IS IN EXCESS OF 8 HOURS. THESE AMOUNTS ARE NOT CONSIDERED TAXABLE TO THE RECIPIENT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>RUSSELL BURNETT SEVERANCE 29,917</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>AIHA HAS PROFESSIONAL AND CORPORATE MEMBERS. PERSONS ENGAGED IN INDUSTRIAL HYGIENE-RELATED ACTIVITIES AND SUCH OTHER PERSONS OR ORGANIZATIONS AS MAY BE PROVIDED IN THE ASSOCIATION'S BYLAWS ARE ELIGIBLE TO APPLY FOR MEMBERSHIP IN THE ASSOCIATION. APPROVAL BY THE BOARD OF DIRECTORS OR ITS DESIGNEE SHALL BE REQUIRED FOR ELECTION TO ALL CLASSES OF MEMBERSHIP. THE CLASSES OF MEMBERSHIP ARE FULL (FULL MEMBERS MAY SERVE ON COMMITTEES, VOTE, AND BE ELECTED TO THE BOARD OF DIRECTORS OF THE ASSOCIATION), ASSOCIATE (AN ASSOCIATE MEMBER MAY SERVE ON COMMITTEES AND VOTE BUT MAY NOT BE ELECTED TO THE BOARD OF DIRECTORS), RETIRED (A RETIRED MEMBER NEITHER VOTES NOR MAY BE ELECTED TO THE BOARD OF DIRECTORS, BUT MAY SERVE ON COMMITTEES), AFFILATE (AN AFFILIATE MEMBER MAY NOT VOTE ON ASSOCIATION ISSUES OR BE ELECTED TO THE BOARD OF DIRECTORS, BUT MAY SERVE ON COMMITTEES), STUDENT (A STUDENT MEMBER MAY NOT VOTE OR SERVE ON THE BOARD OF DIRECTORS, BUT MAY SERVE AS A NON-VOTING MEMBER OF A COMMITTEE OF AIHA), HONORARY (AN HONORARY MEMBER MAY NOT VOTE, BE ELECTED TO THE BOARD OF DIRECTORS, OR SERVE ON COMMITTEES), AND ORGANIZATIONAL (AN ORGANIZATIONAL MEMBER MAY NOT VOTE, SERVE ON COMMITTEES, OR BE ELECTED TO THE BOARD OF DIRECTORS).</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING BODY IS ELECTED BY THE AIHA VOTING MEMBERSHIP CLASSES THROUGH A MAJORITY VOTE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE ARE SOME DECISIONS RECOMMENDED BY THE GOVERNING BODY, SUCH AS BY LAW CHANGES, THAT MUST BE PRESENTED TO THE AIHA VOTING MEMBERSHIP CLASSES FOR APPROVAL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION'S FORM 990 IS REVIEWED BY THE DIRECTOR OF FINANCE &amp; ADMINISTRATION AND THE GOVERNING BODY BEFORE FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>AN INDIVIDUAL IS REQUIRED BY OUR CONFLICT OF INTEREST POLICY TO REPORT ANY POTENTIAL CONFLICT OF INTEREST AND RECUSE HIM/HERSELF IF HE/SHE FEELS THERE IS A CONFLICT. ANYONE CAN REPORT A SUSPECTED VIOLATION AND AIHA WILL INVESTIGATE IF NEEDED. VOLUNTEERS AND STAFF ARE REQUIRED TO COMPLETE A CONFLICT OF INTEREST REPORT EACH YEAR.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS FOR DETERMINING EXECUTIVE DIRECTOR COMPENSATION INCLUDED THE CONSIDERATION OF COMPARABILITY DATA. THE EXECUTIVE DIRECTOR'S SALARY WAS SET BY MEMBERS OF THE EXECUTIVE COMMITTEE AND BASED ON THE COMPARABILITY DATA. THE PROCESS FOR DETERMINING OFFICER AND KEY EMPLOYEE COMPENSATION INCLUDED THE CONSIDERATION OF COMPARABILITY DATA. THE EXECUTIVE DIRECTOR, IN CONSULTATION WITH THE DIRECTOR OF HUMAN RESOURCES, SET THE SALARY BASED ON THE COMPARABILITY DATA. THE EXECUTIVE DIRECTOR'S COMPENSATION WAS LAST REVIEWED IN JANUARY OF 2015. IN 2013, AN INDEPENDENT COMPENSATION CONSULTANT WAS UTILIZED TO GATHER COMPARABILITY DATA AND REVIEW THE EXECUTIVE DIRECTOR'S COMPENSATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE MADE AVAILABLE UPON WRITTEN REQUEST. GOVERNING DOCUMENTS AND THE CONFLICT OF INTEREST POLICY ARE ALSO AVAILABLE FOR REVIEW ON THE PUBLIC SECTION OF THE AIHA WEBSITE.</ExplanationTxt>
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        <LegalDomicileStateCd>VA</LegalDomicileStateCd>
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        <ShareOfEOYAssetsAmt>35584</ShareOfEOYAssetsAmt>
        <DisproportionateAllocationsInd>0</DisproportionateAllocationsInd>
        <GeneralOrManagingPartnerInd>0</GeneralOrManagingPartnerInd>
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      <GiftGrntOrCapContriToOthOrgInd>1</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>1</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>1</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>1</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
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      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>JOEH LLC</BusinessNameLine1Txt>
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        <TransactionTypeTxt>Q</TransactionTypeTxt>
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        <MethodOfAmountDeterminationTxt>ACCRUAL</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>JOEH LLC</BusinessNameLine1Txt>
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        <MethodOfAmountDeterminationTxt>ACCRUAL</MethodOfAmountDeterminationTxt>
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</Return>