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        <Identifier>Form 990, Part VI, Line 19</Identifier>
        <ReturnReference>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</ReturnReference>
        <Explanation>Available by request.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 12c</Identifier>
        <ReturnReference>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</ReturnReference>
        <Explanation>The Audit Committee reviews annually.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 11</Identifier>
        <ReturnReference>Form 990, Part VI, Line 11: Form 990 Review Process</ReturnReference>
        <Explanation>A copy is provided to all members of the Board before filing.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 2</Identifier>
        <ReturnReference>Form 990, Part VI, Line 2: Description of Business or Family Relationship of Officers, Directors, Et</ReturnReference>
        <Explanation>Board members Helen and Walter Norton are married.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
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          <BusinessNameLine1>Bigelow Lab for Ocean Science Foundation</BusinessNameLine1>
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        <AddressUS>
          <AddressLine1>POBox 111</AddressLine1>
          <City>West Boothbay Harbor</City>
          <State>ME</State>
          <ZIPCode>045750111</ZIPCode>
        </AddressUS>
        <EIN>010543743</EIN>
        <PrimaryActivities>to benefit and support Bigelow Laboratory for Ocean Sciences</PrimaryActivities>
        <LegalDomicileState>ME</LegalDomicileState>
        <ExemptCodeSection>501(c)(3)</ExemptCodeSection>
        <PublicCharityStatus>Type III</PublicCharityStatus>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
        <ControlledOrg>false</ControlledOrg>
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      <GiftGrantOrCapContrFrOtherOrg>false</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>false</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>false</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>false</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>false</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>false</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>false</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>false</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>false</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>false</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>false</SharingOfFacilities>
      <SharingOfPaidEmployees>false</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>false</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>false</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>false</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>false</OtherTransferFromOtherOrg>
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