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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>T1D EXCHANGE AND THE FOUNDATION ARE BOTH NONPROFIT ORGANIZATIONS AS DESCRIBED IN SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND EACH IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES. AS A RESULT, NO PROVISION FOR INCOME TAXES IS PRESENTED IN THESE CONSOLIDATED FINANCIAL STATEMENTS. HOWEVER, IN CERTAIN CIRCUMSTANCES, THE ORGANIZATION MAY BE SUBJECT TO FEDERAL AND STATE INCOME TAXES FOR PROFITS GENERATED FROM UNRELATED TRADE OR BUSINESS INCOME. AS DECEMBER 31, 2018 AND 2017, MANAGEMENT'S POSITION IS THAT THE ORGANIZATION DOES NOT HAVE ANY LIABILITIES ASSOCIATED WITH UNRELATED TRADE OR BUSINESS INCOME. THE ORGANIZATION ASSESSES THE RECORDING OF UNCERTAIN TAX POSITIONS BY EVALUATING THE MINIMUM RECOGNITION THRESHOLD AND MEASUREMENT REQUIREMENTS A TAX POSITION MUST MEET BEFORE BEING RECOGNIZED AS A BENEFIT IN THE CONSOLIDATED FINANCIAL STATEMENTS. THE ORGANIZATION'S POLICY IS TO RECOGNIZE INTEREST AND PENALTIES ACCRUED ON UNCERTAIN TAX POSITIONS AS A COMPONENT OF INCOME TAX EXPENSES, IF ANY, IN ITS CONSOLIDATED STATEMENTS OF ACTIVITIES.</ExplanationTxt>
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        <PersonNm>DANA BALL CEO UNTIL 718</PersonNm>
        <TitleTxt>DIR., PRESIDENT, SEC. OF BD. 2018</TitleTxt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>320505</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DARA SHUSTER AS OF 718</PersonNm>
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        <PersonNm>REBECCA PARKES</PersonNm>
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        <TotalCompensationFilingOrgAmt>191033</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JAYA PLMANABHAN</PersonNm>
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        <PersonNm>WENDY WOLF</PersonNm>
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        <PersonNm>ALICIA MCAULIFFE-FOGARTY</PersonNm>
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        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>A DISCRETIONARY BONUS WAS PAID TO AN OFFICER OF THE ORGANIZATION.</ExplanationTxt>
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    </IRS990ScheduleJ>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>T1D EXCHANGE IS A NONPROFIT, RESEARCH ORGANIZATION DEDICATED TO ACCELERATING THERAPIES AND IMPROVING CARE FOR PEOPLE AFFECTED BY TYPE 1 DIABETES. T1D EXCHANGE ACTIVELY SUPPORTS DISCOVERY AND INNOVATION THROUGH ITS BIOBANK AND PATIENT DATA. AT THE SAME TIME, THE ORGANIZATION UNDERSTANDS THAT EVIDENCE GATHERED IN THE "REAL WORLD" CAN HELP BRIDGE THE GAP BETWEEN DISCOVERY IN RESEARCH SETTINGS AND IMPACT IN PEOPLE'S LIVES. T1D EXCHANGE MODEL USES CUTTING-EDGE TOOLS, RESEARCH METHODS, AND A ROBUST IT PLATFORM TO GATHER EVIDENCE FROM THE REAL-WORLD AND CLINICAL EXPERIENCES OF PEOPLE LIVING WITH TYPE 1 DIABETES. THE GOAL IS TO CONNECT BIOLOGICAL SAMPLES, MEDICAL DATA, AND PATIENT INSIGHTS TO ALL STAGES OF RESEARCH AND DEVELOPMENT, EXPEDITING THE DEVELOPMENT OF THERAPIES AND BETTER CARE FOR EVERYONE AFFECTED BY TYPE 1 DIABETES. T1D EXCHANGE IS SUPPORTED BY 2 KEY PROGRAMS, THE T1D EXCHANGE REGISTRY AND THE QUALITY IMPROVEMENT COLLABORATIVE AND MAINTAINS A DATA SET OF OVER 30,000 INDIVIDUALS WITH TYPE 1 DIABETES INCLUDING SELF-REPORTED, EHR, AND BIOLOGICAL DATA. THE T1D EXCHANGE HAS A STRONG TRACK RECORD IN SUPPORTING CLINICAL RESEARCH AND PATIENT-REPORTED OUTCOMES RESEARCH FOCUSING ON TYPE 1 DIABETES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBER IS THOSE PERSONS SERVING FROM TIME TO TIME AS THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>T1D EXCHANGE IS A MEMBERSHIP CORPORATION. THE MEMBER IS THOSE PERSONS SERVING FROM TIME TO TIME AS THE BOARD OF DIRECTORS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>PRIOR TO FILING FROM 990 THE COMPLETED FORM 990 IS DISTRIBUTED TO THE BOARD OF DIRECTORS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION CONTINUALLY MONITORS AND ENFORCES THE CONFLICT OF INTEREST POLICY BY (1) REQUIRING ALL NEW BOARD MEMBERS TO SIGN THE POLICY AND IDENTIFY ANY CONFLICTS THAT MAY EXIST, AND (2) ANNUALLY RE-AFFIRM WITH ALL MEMBERS OF THE BOARD OF DIRECTORS AND IDENTIFY AND CONFLICTS OF INTEREST THAT MAY HAVE OCCURED IN THE PRIOR YEAR.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS IS REPONSIBLE FOR THE YEARLY PERFORMANCE EVALUATION AND SALARY REVIEW OF THE EXECUTIVE DIRECTOR AND ANY EMPLOYEES EARNING $200,000 OR MORE. THE BOARD USES SALARY SURVEY'S AS A BENCHMARK FOR EACH POSITION, UTILIZING COMPARABLES FROM OTHER SIMILAR ORGANIZATIONS AND OTHER AVAILABLE DATA.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 18</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS FORM 1023, AND 990S AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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          <AddressLine1Txt>11 AVENUE DE LAFAYETTE 5TH FLOOR</AddressLine1Txt>
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        <PrimaryActivitiesTxt>BENEFITING AND SUPPORTING THE CHARITABLE ACTIVITIES OF T1D EXCHANGE, INC.</PrimaryActivitiesTxt>
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