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        <EOYAmt>0</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
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      <ReconcilationRevenueExpnssAmt>2855</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>50232</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="990A">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>4864</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3898</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4150</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>15441</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>15931</CurrentTaxYearAmt>
        <TotalAmt>44284</TotalAmt>
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      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>4864</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3898</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4150</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>15441</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>15931</CurrentTaxYearAmt>
        <TotalAmt>44284</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>44284</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>23722</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>9205</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>17236</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>12997</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>13137</CurrentTaxYearAmt>
        <TotalAmt>76297</TotalAmt>
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        <TotalAmt>8746</TotalAmt>
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      <GrossReceiptsRltdActivitiesAmt>18206</GrossReceiptsRltdActivitiesAmt>
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      <PublicSupportPY170Pct>0.25440</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Other income Part II line 10 or Part III line 12</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS EXPLANATION IS FOR THE YEARS PRIOR TO 2020. THE AMOUNTS IN THOSE YEARS WERE CALCULATED BY A FORMER TAX PREPARER. THE CURRENT TAX PREPARER HAS NO COMMENT ON THE ACCURACY OF THOSE CALCULATIONS.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Officer directors etc family relationship Part VI line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>MICHAEL WEINSTOCK &amp; JANET WEINSTOCK, FAMILY RELATIONSHIP</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Organizational document changes Part VI line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING THE 20232024 YEAR, MDSC PROPOSED 55 AMENDMENTS TO ITS BYLAWS. OF THESE, 30 CONTAINED SUBSTANTIVE CHANGES, WHILE THE REMAINING 25 WERE NON-SUBSTANTIVE, INCLUDING GRAMMAR, SPELLING, AND CLARIFICATIONS, WITH NO IMPACT ON THE GOALS OR MEANING OF THE BYLAWS. SIGNIFICANT SUBSTANTIVE CHANGES INCLUDED:* ESTABLISHING A SUPPORTING MEMBERSHIP CATEGORY OPEN TO INDIVIDUALS WHO DO NOT MEET THE REGULAR MEMBERSHIP CRITERIA DESCRIBED IN SECTION 3.1.1. SUPPORTING MEMBERS PAY DUES BUT HAVE NO VOTING RIGHTS AND CANNOT RUN FOR OFFICE.* ENSURING THAT THE ENTIRE BOARD IS COVERED BY DIRECTORS AND OFFICERS (D&amp;O) LIABILITY INSURANCE.* REQUIRING THAT ALL PROPOSED AMENDMENTS BE DISTRIBUTED TO REGULAR MEMBERS AT LEAST THIRTY (30) DAYS PRIOR TO THE GENERAL MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Members or stockholder classes and rights Part VI line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>MDSC IS A MEMBERSHIP ORGANIZATION OPEN TO ALL INDIVIDUALS WHO ARE DEAF OR DEAFBLIND, ARE 50 YEARS OF AGE OR OLDER, RESIDE IN THE STATE OF MARYLAND, AND HAVE PAID THEIR APPLICABLE YEARLY DUES. MEMBERS ELECT OFFICERS WHO SERVE ON THE BOARD, THE GOVERNING BODY OF MDSC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Member election for additional members Part VI line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS ELECT OFFICERS WHO SERVE AS VOTING TRUSTEES ON THE BOARD, THE GOVERNING BODY OF MDSC. THE PRESIDENT OF MDSC DURING THE PRECEDING YEAR ALSO SERVES ON THE BOARD, AS A NONVOTING MEMBER. MDSC WOULD LIKE TO RECOGNIZE THE DEDICATED VOLUNTEER SERVICE OF LESLIE ZINZA WHO SERVED IN THIS CAPACITY AND WHO PASSED AWAY IN MARCH 2024. SHE IS DEARLY MISSED BY THE BOARD AND MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing body decisions Part VI line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>IF THERE IS A MAJOR NEW LONG-TERM STRATEGIC PLAN, BYLAWS REVISION, OR A NEW FISCAL YEARS BUDGET, FOR EXAMPLE, IT WOULD GO OUT TO THE GENERAL MEMBERSHIP TO APPROVE. OTHERWISE, APPROVALS OF EXPENSES AND THE LIKE CAN BE DECIDED WITHIN THE GOVERNING BODY ITSELF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Committee meeting documentation Part VI line 8b</FormAndLineReferenceDesc>
        <ExplanationTxt>MINUTES ARE KEPT FOR ALL BOARD COMMITTEES, AND GENERALLY NOT FOR THE COMMITTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>MDSC HAS A PRACTICE OF SHARING A COPY OF THE FORM 990 PACKAGE WITH MEMBERS OF THE GOVERNING BODY BY EMAIL, PERSONAL CONTACT, AND OTHER SIMILAR METHODS. ASIDE FROM THIS, THE PRESIDENT AND TREASURER GO OVER THE FORM 990 ANSWERS WITH THE CPA WHO PREPARED IT BEFORE SIGNING AND FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Conflict of interest policy compliance Part VI line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>MDSC HAS A SEMI-FORMAL PROCESS OF CHECKING IN WITH MEMBERS OF THE BOARD ABOUT POTENTIAL CONFLICTS OF INTEREST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 availability to public Part VI line 18</FormAndLineReferenceDesc>
        <ExplanationTxt>MDSC BYLAWS ARE AVAILABLE ON ITS WEBSITE. COPIES OF FORMS 990 ARE AVAILABLE THROUGH IRSFORM 990 SEARCH AS WELL AS UPON REQUEST. OTHER ORGANIZATIONAL DOCUMENTS ARE AVAILABLE UPONREQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>MDSC BYLAWS ARE AVAILABLE ON ITS WEBSITE. COPIES OF FORMS 990 ARE AVAILABLE THROUGH IRS FORM 990 SEARCH AS WELL AS UPON REQUEST. OTHER ORGANIZATIONAL DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>