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        <ExplanationTxt>THE INTERNAL REVENUE SERVICE HAS MADE A DETERMINATION ON MARCH 3, 1988 THAT THE TRUST IS EXEMPT FROM FEDERAL INCOME TAX UNDER THE PROVISIONS OF SECTION 501(C)(9) OF THE INTERNAL REVENUE CODE ("IRC"). THE PLAN ADMINISTRATOR BELIEVES THAT THE TRUST AND THE PLAN, AS AMENDED, REMAIN IN COMPLIANCE WITH THE APPLICABLE REQUIREMENTS OF THE IRC. GAAP REQUIRES THE PLAN'S MANAGEMENT TO EVALUATE TAX POSITIONS TAKEN BY THE PLAN AND RECOGNIZES A TAX LIABILITY (OR ASSET) IF THE PLAN HAS TAKEN AN UNCERTAIN POSITION THAT MORE THAN LIKELY THAN NOT WOULD NOT BE SUSTAINED UPON EXAMINATION BY THE APPLICABLE AUTHORITIES. THE COMPANY HAS ANALYZED THE TAX POSITIONS TAKEN BY THE PLAN AND HAS CONCLUDED THAT AS OF DECEMBER 31, 2022, THERE WERE NO UNCERTAIN TAX POSITIONS TAKEN. THE PLAN IS SUBJECT TO ROUTINE AUDITS BY TAXING JURISDICTIONS; HOWEVER, THERE ARE CURRENTLY NO AUDITS FOR ANY TAX PERIODS IN PROGRESS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>SCHEDULE N, PART II:</FormAndLineReferenceDesc>
        <ExplanationTxt>EXELON COMPLETED THE SPINOFF OF ITS GENERATION BUSINESS ON FEBRUARY 1, 2022, CREATING CONSTELLATION ENERGY CORPORATION ("CONSTELLATION"), A NEW AND SEPARATE PUBLICLY-TRADED COMPANY. AS A RESULT OF THE SEPARATION, EMPLOYEES OF CONSTELLATION AND ITS AFFILIATES CEASED PARTICIPATING IN THE PLAN AND ENTERED INTO A NEWLY CREATED PLAN, THE CONSTELLATION DISABILITY BENEFIT PLAN, SPONSORED BY CONSTELLATION ENERGY GENERATION, LLC, A SUBSIDIARY OF CONSTELLATION.THE CONSTELLATION MUTUAL BENEFIT ASSOCIATION TRUST IS A VEBA TRUST ESTABLISHED AS OF FEBRUARY 1, 2022 TO HOLD AND DISTRIBUTE FUNDS FOR THE PURPOSE OF PAYING BENEFITS GRANTED UNDER THE CONSTELLATION DISABILITY BENEFIT PLAN.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS PARTICIPATE IN THE SPONSOR HEALTH BENEFIT PLANS AND RECEIVE DISABILITY BENEFITS FROM THE FUNDED VEBA.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION USES A CPA FIRM TO PREPARE FORM 990. THE RETURN IS REVIEWED BY EXELON ACCOUNTING, CORPORATE BENEFITS AND LEGAL DEPARTMENTS. THE RETURN IS REVIEWED BY THE PARTIES WHO ADMINISTER THE DISABILITY PLANS THAT ARE FUNDED BY THE ORGANIZATION AND MANAGE THE ASSETS OF THE ORGANIZATION. AS SUCH ALL RESPONSIBLE GOVERNING BODIES REVIEW AND APPROVE THE RETURN PRIOR TO FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL PARTIES RESPONSIBLE FOR PLAN ASSETS ARE SUBJECT TO THE EXELON CORPORATION CONFLICT OF INTEREST POLICY. EXELON REGULARLY MONITORS COMPLIANCE WITH ITS CONFLICT OF INTEREST POLICY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION DOES NOT PAY ANY COMPENSATION. CONSEQUENTLY LINES 15A AND 15B ARE NOT APPLICABLE TO THIS ORGANIZATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS FORM 1024, FORM 990, GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>NET LIABILITIES DUE FOR BENEFITS TRANSFERRED TO OTHER PLANS 902,111.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART X, LINE 6:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AMOUNT REPORTED ON FORM 990, PART X, LINE 6 CONSISTS OF RECEIVABLES OF $3,191 DUE FROM CONTRIBUTING EMPLOYERS AND SPONSORING ORGANIZATIONS OF SECTION 501(C)(9) VOLUNTARY EMPLOYEES' BENEFICIARY ORGANIZATIONS. PER IRS 990 INSTRUCTIONS, SCHEDULE L, PART II IS NOT REQUIRED TO BE COMPLETED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI:</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS ORGANIZATION IS A VOLUNTARY EMPLOYEES' BENEFICIARY ASSOCIATION TRUST UNDER IRC 501(C)(9). THIS ORGANIZATION FUNDS DISABILITY PROVIDED UNDER CERTAIN HEALTH AND WELFARE PLANS SPONSORED BY EXELON CORPORATION FOR ITS EMPLOYEES AND THEIR ELIGIBLE DEPENDENTS. THIS ORGANIZATION FOLLOWS EXELON'S CORPORATE POLICIES WHERE APPLICABLE INCLUDING PROPER DOCUMENTATION OF ALL ACTIONS TAKEN ON BEHALF OF THE PLAN.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>EXELON BUSINESS SERVICES CO LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>10 SOUTH DEARBORN 51ST FLOOR</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60603</ZIPCd>
        </USAddress>
        <EIN>233063219</EIN>
        <PrimaryActivitiesTxt>PROVIDES SUPPORT TO OPERATING COMPANIES</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>EXELON CORPORATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>EXELON GENERATION CO LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>10 SOUTH DEARBORN 51ST FLOOR</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60603</ZIPCd>
        </USAddress>
        <EIN>233064219</EIN>
        <PrimaryActivitiesTxt>POWER GENERATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>PA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>EXELON CORPORATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>EXELON CORPORATION</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>10 SOUTH DEARBORN 51ST FLOOR</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60603</ZIPCd>
        </USAddress>
        <EIN>232990190</EIN>
        <PrimaryActivitiesTxt>HOLDING COMPANY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>COMED</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>10 SOUTH DEARBORN 51ST FLOOR</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60603</ZIPCd>
        </USAddress>
        <EIN>360938600</EIN>
        <PrimaryActivitiesTxt>ELECTRIC DISTRIBUTION UTILITY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>IL</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</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>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>1</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
