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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FIN 48 (ASC 740) FOOTNOTE</FormAndLineReferenceDesc>
        <ExplanationTxt>SCHEDULE D, PART X, LINE 2: THE FOLLOWING FOOTNOTE APPEARED IN THE CONSOLIDATED FINANCIAL STATEMENTS FOR BOTH MONTEREY BAY AQUARIUM SUPPORT SERVICES ("MBASS") AND MONTEREY BAY AQUARIUM FOUNDATION, A RELATED ORGANIZATION: THE MONTEREY BAY AQUARIUM FOUNDATION AND MBASS FOLLOW GUIDANCE THAT CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN, INCLUDING ISSUES RELATING TO FINANCIAL STATEMENT RECOGNITION AND MEASUREMENT. THIS GUIDANCE PROVIDES THAT THE TAX EFFECTS FROM AN UNCERTAIN TAX POSITION CAN ONLY BE RECOGNIZED IN THE FINANCIAL STATEMENTS IF THE POSITION IS "MORE-LIKELY'THAN-NOT" TO BE SUSTAINED IF THE POSITION WERE TO BE CHALLENGED BY A TAXING AUTHORITY. THE ASSESSMENT OF THE TAX POSITION IS BASED SOLELY ON THE TECHNICAL MERITS OF THE POSITION, WITHOUT REGARD TO THE LIKELIHOOD THAT THE TAX POSITION MAY BE CHALLENGED. THE MONTEREY BAY AQUARIUM FOUNDATION AND MBASS ARE EXEMPT FROM FEDERAL INCOME TAX UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE, THOUGH EACH ORGANIZATION IS SUBJECT TO TAX ON INCOME UNRELATED TO ITS EXEMPT PURPOSE, UNLESS THAT INCOME IS OTHERWISE EXCLUDED BY THE CODE. THEY ARE ALSO EXEMPT FROM CALIFORNIA STATE FRANCHISE TAXES UNDER SECTION 23701(D) OF THE CALIFORNIA REVENUE AND TAXATION CODE. THE MONTEREY BAY AQUARIUM FOUNDATION AND MBASS HAVE PROCESSES PRESENTLY IN PLACE TO ENSURE THE MAINTENANCE OF EACH ORGANIZATION'S TAX-EXEMPT STATUS; TO IDENTIFY AND REPORT UNRELATED INCOME; TO DETERMINE THE ORGANIZATION'S FILING AND TAX OBLIGATIONS IN JURISDICTIONS FOR WHICH IT HAS NEXUS; AND TO IDENTIFY AND EVAULATE OTHER MATTERS THAT MAY BE CONSIDERED TAX POSITIONS.THE MONTEREY BAY AQUARIUM FOUNDATION AND MBASS HAVE BOTH DETERMINED THAT THERE ARE NO MATERIAL UNCERTAIN TAX POSITIONS THAT REQUIRE RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
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        <PersonNm>Troy A Grande</PersonNm>
        <TitleTxt>Chief Financial Officer</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Cynthia Vernon</PersonNm>
        <TitleTxt>President</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Robert Young</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>QUESTIONS REGARDING COMPENSATION</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, SCHEDULE J, PART I, LINE 3: MONTEREY BAY AQUARIUM SUPPORT SERVICES DOES NOT HAVE EMPLOYEES. ALL OFFICERS OF THE ORGANIZATION ARE COMPENSATED BY A RELATED PARTY, THE MONTEREY BAY AQUARIUM FOUNDATION. SEE SCHEDULE O FOR FURTHER DETAILS OF THE PROCEDURE FOR ESTABLISHING COMPENSATION OF THE PRESIDENT/CEO AND KEY EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
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    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PROGRAM SERVICE ACTIVITIES</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART III, LINE 4A: MBASS OPERATES PROPERTY FOR THE SUPPORTED IRC SECTION 501(C)(3) ORGANIZATION, MONTEREY BAY AQUARIUM FOUNDATION ('THE AQUARIUM'). THE PROPERTY IS KEY OCEANFRONT PROPERTY OVERLOOKING THE NATIONAL MARINE SANCTUARY AND IS BEING HELD FOR FUTURE USE BY THE AQUARIUM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>ORGANIZATION'S MEMBERS</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION A, LINE 6: THE ORGANIZATION'S SOLE MEMBER IS THE MONTEREY BAY AQUARIUM FOUNDATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>MEMBER'S POWER TO ELECT OR APPOINT MEMBERS OF THE GOVERNING BODY</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION A, LINE 7A: THE ORGANIZATION'S SOLE MEMBER, THE MONTEREY BAY AQUARIUM FOUNDATION, HAS THE POWER TO ELECT ALL OF THE DIRECTORS OF MBASS, AND, WITHOUT CAUSE OR EXPLANATION, MAY CANCEL THE ELECTION OF ANY PERSON AS A DIRECTOR, OR MAY REMOVE ANY DIRECTOR OF THE CORPORATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>GOVERNANCE DECISIONS RESERVED TO MEMBERS</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION A, LINE 7B: THE ORGANIZATION'S SOLE MEMBER: (I) HAS THE POWER TO APPROVE ANY ADOPTION, AMENDMENT, RESTATEMENT, REVISION OR DELETION OF THE ARTICLE OF INCORPORATION OR BYLAWS, (II) APPROVE ANY MERGER, SUBSTANTIAL DISPOSITION OF ASSETS, OR SALE OF ASSETS, OTHER THAN IN THE ORDINARY COURSE OF BUSINESS, AND (III) APPROVE ANY PROPOSED ACTIONS TO BORROW MONEY OR INCUR INDEBTEDNESS, OTHER THAN TRADE PAYABLE ENTERED INTO IN THE ORDINARY COURSE OF BUSINESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 REVIEW PROCESS</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION B, LINE 11B: THE AQUARIUM'S CONTROLLER PROVIDES ALL INFORMATION NEEDED FOR THE FORM 990 TO GRANT THORNTON LLP BASED ON AUDITED CONSOLIDATED FINANCIAL STATEMENTS. GRANT THORNTON PREPARES AND REVIEWS THE FORM 990, WHICH IS THEN REVIEWED BY THE MBASS CFO. A FINAL DRAFT IS PROVIDED TO THE MBASS BOARD OF DIRECTORS PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>MONITORING AND ENFORCEMENT OF CONFLICT OF INTEREST POLICY</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION B, LINE 12C: MBASS IS SUBJECT TO THE CONFLICT OF INTEREST POLICIES AND PROCEDURES OF THE SUPPORTED ORGANIZATION, MONTEREY BAY AQUARIUM FOUNDATION ("THE AQUARIUM"). CONFLICT OF INTEREST POLICY - THE AQUARIUM'S EXECUTIVE DIRECTOR'S OFFICE ASSURES THAT ALL DISCLOSURES FORMS (AND MITIGATION PLANS, IF APPLICABLE) HAVE BEEN RECEIVED BY JANUARY 31 OF EACH YEAR FROM ALL TRUSTEES AND OFFICERS, PREPARES A SUMMARY OF DISCLOSURES, AND FORWARDS THE COMPLETED FORMS AND THE SUMMARY TO THE AQUARIUM'S CONFLICTS REVIEW PANEL, CONSISTING OF THE AQUARIUM'S EXECUTIVE DIRECTOR, LEGAL COUNSEL, CHIEF HUMAN RESOURCES OFFICER, CHIEF FINANCIAL OFFICER ("CFO"), AND CONTROLLER AND DIRECTOR OF FINANCE. TRUSTEES AND OFFICERS ALSO ACKNOWLEDGE RECEIPT AND UNDERSTANDING OF THE AQUARIUM'S COI POLICY IN CONJUNCTION WITH PROVIDING THE ANNUAL DISCLOSURES. FOLLOWING REVIEW BY THE PANEL, THE PANEL'S FINDINGS AND THE DISCLOSURES ARE PROVIDED TO THE AQUARIUM BOARD'S AUDIT COMMITTEE, WHICH REVIEWS THE DISCLOSURES AND MAKES A REPORT TO THE AQUARIUM BOARD AT ITS MARCH BOARD MEETING. BOTH THE PANEL AND THE AUDIT COMMITTEE ANNUALLY EVALUATE THE EFFECTIVENESS OF THE PROCESS. THE MBASS CFO ASSURES APPROPRIATE REPORTING TO THE EXTERNAL AUDITORS AND TAX FILINGS PREPARER. TRUSTEES AND OFFICERS HAVE A CONTINUING DUTY TO MAKE ADDITIONAL DISCLOSURES THROUGHOUT THE YEAR IF WARRANTED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PROCESS FOR DETERMINING COMPENSATION OF PRESIDENT/CEO AND KEY EMP</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION B, LINE 15: MBASS DOES NOT HAVE EMPLOYEES. ALL OFFICERS OF MBASS ARE FULL TIME EMPLOYEES OF MBASS' SUPPORTED ORGANIZATION, THE MONTEREY BAY AQUARIUM. THE SERVICES ARE PROVIDED BY THE AQUARIUM TO MBASS WITHOUT CHARGE AND THEIR COMPENSATION IS REPORTED BY THE AQUARIUM. THE AQUARIUM'S PROCESS FOR DETERMINING THE COMPENSATION OF THE PRESIDENT, CFO, AND OTHER HIGHLY COMPENSATED EMPLOYEES IS AS FOLLOWS: COMPENSATION CONSULTANTS WERE ENGAGED TO CONDUCT A REVIEW OF ALL SENIOR STAFF POSITIONS. A CUSTOM SURVEY WAS CONDUCTED WHICH INCLUDED 20 COMPARABLE ORGANIZATIONS. MARKET DATA WAS GATHERED AND ANALYZED BY A NATIONAL COMPENSATION CONSULTING FIRM. RESULTS WERE REVIEWED BY THE AQUARIUM'S EXECUTIVE COMPENSATION COMMITTEE AND WERE USED BY THE COMMITTEE TO FORMALLY REVIEW AND APPROVE THE CFO'S COMPENSATION, AND TO CONFIRM THAT THE COMPENSATION OF THE PRESIDENT, CFO, AND OTHER HIGHLY COMPENSATED EMPLOYEES IS REASONABLE AND APPROPRIATE. THE REVIEW WAS CONTEMPORANEOUSLY DOCUMENTED IN THE COMMITTEE MINUTES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>DOCUMENTS MADE AVAILABLE TO THE PUBLIC</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART VI, SECTION C, LINE 19: MBASS MAKES ITS CONSOLIDATED (WITH THE AQUARIUM) AUDITED FINANCIAL STATEMENTS FOR THE MOST RECENT THREE YEARS AVAILABLE TO THE PUBLIC BY POSTING ON THE AQUARIUM'S WEBSITE. THE FORM 990, CONFLICT OF INTEREST POLICY, AND GOVERNING DOCUMENTS ARE PROVIDED UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>COMMITTEE RESPONSIBLE FOR OVERSIGHT OF AUDIT</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990, PART XII, LINE 2C: MBASS RESPONDED "YES" TO THIS QUESTION BECAUSE THE FINANCIAL STATEMENT IS CONSOLIDATED AND THE AQUARIUM'S AUDIT COMMITTEE HAS RESPONSIBILITY FOR OVERSIGHT OF THE AUDIT OF THE CONSOLIDATED FINANCIAL STATEMENTS AND THE SELECTION OF AN INDEPENDENT ACCOUNTANT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 PART IX LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION:PROPERTY MANAGEMENT TOTAL FEES:355987</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 PART IX LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION:PARKING MANAGEMENT TOTAL FEES:99053</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 PART IX LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION:SECURITY TOTAL FEES:10868</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Monterey Bay Aquarium Foundation</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>886 Cannery Row</AddressLine1Txt>
          <CityNm>Monterey</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>93940</ZIPCd>
        </USAddress>
        <EIN>942487469</EIN>
        <PrimaryActivitiesTxt>Conservation</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>07</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>true</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>