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        <CurrentTaxYearMinus3YearsAmt>10000</CurrentTaxYearMinus3YearsAmt>
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          <AddressLine2>RESTRICTED</AddressLine2>
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        <EndYearBalanceAmt>124173</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>14254</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>116573</EndYearBalanceAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueSubtotalAmt>1418870</RevenueSubtotalAmt>
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      <RevenueNotReportedFinclStmtAmt>8041</RevenueNotReportedFinclStmtAmt>
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      <ExpensesSubtotalAmt>1311013</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>8041</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>8041</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION WILL USE THE ENDOWMENT FUNDS TO SUPPORT THE NEW INVESTIGATOR (GILETTE) AWARD.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSX BELIEVES THAT IT HAS APPROPRIATE SUPPORT FOR ANY TAX POSITIONS TAKEN, AND AS SUCH, DOES NOT HAVE ANY UNCERTAIN TAX POSITIONS THAT ARE MATERIAL TO THE FINANCIAL STATEMENTS OR THAT WOULD HAVE AN EFFECT ON ITS TAX-EXEMPT STATUS. THERE ARE NO UNRECOGNIZED TAX BENEFITS OR LIABILITIES THAT NEED TO BE RECORDED.</ExplanationTxt>
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        <ExplanationTxt>THE SCIENTIFIC ACHIEVEMENT AWARDS ARE PRESENTED TO AN ISSX MEMBER WHO HAS MADE MAJOR SCIENTIFIC MERITORIOUS CONTRIBUTIONS BY SCIENTISTS THAT HAVE HAD MAJOR IMPACT ON RESEARCH IN THE FIELD WITHIN A SPECIFIC GEOGRAPHIC REGION. TRAVEL GRANTS ARE ISSUED TO INDIVIDUALS TO ASSIST IN THE TRAVEL COSTS TO ATTEND MEETINGS. THE AWARDS ARE MONITORED BY THE STAFF OF ISSX AND IF A RECIPIENT IS FOUND TO NOT HAVE FULLFILLED THE ELIGIBILITY REQUIREMENT, THE AWARD WILL BE CANCELLED.</ExplanationTxt>
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        <GrantTypeTxt>TRAVEL GRANTS TO RECIPIENTS TO ATTEND ANNUAL MEETING.REGIONAL SCIENTIFIC ACHIEVEMENT AWARD - PRESENTED TO A MEMBER THAT MADE MAJOR SCIENTIFIC MERITORIOUS CONTRIBUTIONS AND HAD A MAJOR IMPACT ON RESEARCH IN THE FIELD WITHIN A SPECIFIC REGION.DISTINGUISHED SERVICE AWARD - PRESENTED TO A MEMBER FROM A REGION WHO HAS A RECORD OF IMPORTANT SERVICE TO THE ORGANIZATION AND ITS GOALS.</GrantTypeTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCIENTIFIC ACHIEVEMENT AWARDS ARE PRESENTED TO AN ISSX MEMBER WHO HAS MADE MAJOR SCIENTIFIC MERITORIOUS CONTRIBUTIONS BY SCIENTISTS THAT HAVE HAD MAJOR IMPACT ON RESEARCH IN THE FIELD WITHIN A SPECIFIC GEOGRAPHIC REGION. TRAVEL GRANTS ARE ISSUED TO INDIVIDUALS TO ASSIST IN THE TRAVEL COSTS TO ATTEND MEETINGS. THE AWARDS ARE MONITORED BY THE STAFF OF ISSX AND IF A RECIPIENT IS FOUND TO NOT HAVE FULLFILLED THE ELIGIBILITY REQUIREMENT, THE AWARD WILL BE CANCELLED.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSX HAS AN AGREEMENT WITH SMITHBUCKLIN CORPORATION TO MANAGE ITS OPERATIONS. PER THE AGREEMENT, SMITHBUCKLIN, INC. PROVIDES EXECUTIVE MANAGEMENT SERVICES TOTALING $90,000, MEMBERSHIPS AND OPERATIONS, EVENT SERVICES, SITE SELECTION AND CONTRACTING SERVICES, FINANCIAL MANAGEMENT AND ACCOUNTING SERVICES, SALES AND FULFILLMENT SERVICES, REGISTRATION SERVICES, AND PROMOTIONAL PRODUCTS AND SUPPORT. SMITHBUCKLIN'S PERFORMANCE UNDER THIS AGREEMENT IS MONITORED BY THE BOARD OF ISSX.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSX IS A MEMBERSHIP ORGANIZATION. ANYONE ENGAGED IN RESEARCH IN XENOBIOTICS, OR IN THE ADMINISTRATION AND/OR REGULATIONS OF SUCH RESEARCH, OR ANYONE WHO EXPRESSES A SCIENTIFIC INTEREST IN THE FIELD WILL BE ELIGIBLE FOR MEMBERSHIP. MEMBERSHIP CATEGORIES ARE SET FORTH IN THE BY-LAWS.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>IN CONNECTION WITH ANY ACTUAL OR POSSIBLE CONFLICT OF INTEREST, AN INTERESTED PERSON MUST DISCLOSE THE EXISTENCE OF THE FINANCIAL INTEREST AND BE GIVEN THE OPPORTUNITY TO DISCLOSE ALL MATERIAL FACTS TO THE COUNCIL MEMBERS WITH GOVERNING BOARD DELEGATED POWERS CONSIDERING THE PROPOSED TRANSACTION OR ARRANGEMENT. THE REMAINING COUNCIL MEMBERS SHALL DECIDE IF A CONFLICT OF INTEREST EXISTS. AFTER DISCLOSURE OF THE FINANCIAL INTEREST AND ALL MATERIAL FACTS, AND AFTER ANY DISCUSSION WITH THE INTERESTED PERSON, HE/SHE SHALL LEAVE THE COUNCIL MEETING WHILE THE DETERMINATION OF A CONFLICT OF INTEREST IS DISCUSSED AND VOTED UPON.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS, POLICIES, AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS NOT CHANGED ITS AUDIT OVERSIGHT PROCESS OR SELECTION PROCESS OF AN INDEPENDENT ACCOUNTANT DURING THE TAX YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>