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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT HAS EVALUATED SIGNIFICANT TAX POSITIONS AGAINST THE CRITERIA ESTABLISHED BY PROFESSIONAL STANDARDS AND BELIEVES THERE ARE NO SUCH TAX POSITIONS REQUIRING ACCOUNTING RECOGNITION IN THE FINANCIAL STATEMENTS. MANAGEMENT DOES NOT BELIEVE ITS EVALUATION OF TAX POSITIONS WILL SIGNIFICANTLY CHANGE WITHIN 12 MONTHS OF DECEMBER 31, 2021. ANY CHANGES IN TAX POSITIONS WILL BE RECORDED WHEN THE ULTIMATE OUTCOME BECOMES KNOWN. DISCOVERY MUSEUM, INC.'S INCOME TAX RETURNS ARE SUBJECT TO EXAMINATION BY TAXING AUTHORITIES GENERALLY FOR THE YEARS ENDED DECEMBER 31, 2019, 2020, AND 2021.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>ENDOWMENT FUNDS ARE USED TO FURTHER THE EXEMPT PURPOSE OF THE ORGANIZATION.</ExplanationTxt>
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        <TitleTxt>CHIEF EXECUTIVE OFFICER</TitleTxt>
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        <TotalCompensationFilingOrgAmt>216051</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CEO RECEIVES AN ANNUAL STIPEND BASED ON A PERCENTAGE OF HIS BASE SALARY. THIS STIPEND IS INCLUDED IN HIS REPORTED WAGES AS WELL AS ON SCHEDULE J, PART II, COLUMN (B)(II).</ExplanationTxt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY MANAGEMENT PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS A WRITTEN CONFLICT OF INTEREST POLICY THAT REQUIRES ANNUAL REVIEW AND SIGN-OFF BY ALL BOARD MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS AND HIRING COMMITTEE REVIEW AND APPROVE THE CEO'S COMPENSATION ON AN ANNUAL BASIS. EMPLOYEE SALARY RAISES ARE REVIEWED BY THE CEO AND MEMBERS OF THE BOARD BEFORE IMPLEMENTATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <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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</Return>
