﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-11-11T15:05:55-06:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>John A Libertine Jr CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1 Kettle Pond Way</AddressLine1Txt>
        <CityNm>Medfield</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02052</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>043358624</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Massachusetts Breastfeeding Coalition</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>Inc</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>MASS</BusinessNameControlTxt>
      <PhoneNum>9782677705</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO Box 12</AddressLine1Txt>
        <CityNm>North Andover</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01845</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Jessica Pimentel</PersonNm>
      <PersonTitleTxt>President</PersonTitleTxt>
      <PhoneNum>9782677705</PhoneNum>
      <SignatureDt>2024-11-11</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>John A Libertine Jr CPA</PreparerPersonNm>
      <PTIN>P01315021</PTIN>
      <PhoneNum>5082429589</PhoneNum>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>www.massbfc.org</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc1039100001">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>25559</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>2137</ContributionsGiftsGrantsEtcAmt>
      <FundraisingGrossIncomeAmt referenceDocumentId="RetDoc1041300001">21685</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>16639</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>5046</SpecialEventsNetIncomeLossAmt>
      <GrossSalesOfInventoryAmt>837</GrossSalesOfInventoryAmt>
      <GrossProfitLossSlsOfInvntryAmt>837</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>900</OtherRevenueTotalAmt>
      <TotalRevenueAmt>8920</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>3028</GrantsAndSimilarAmountsPaidAmt>
      <FeesAndOtherPymtToIndCntrctAmt>4429</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>406</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>17574</OtherExpensesTotalAmt>
      <TotalExpensesAmt>25437</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-16517</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>25350</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>8833</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>25350</BOYAmt>
        <EOYAmt>8833</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>25350</BOYAmt>
        <EOYAmt>8833</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>25350</BOYAmt>
        <EOYAmt>8833</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Education</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Conference on current breastfeeding information and management for health care providers.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>16639</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>16639</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Jessica Pimentel</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>6.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Tasha Gunnarson</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>3.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Ellen Tolan RN</PersonNm>
        <TitleTxt>Secretary / Clerk</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Moryn Mendoza</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Naomi Bar-Yam</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Brittany Regan Fisher</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
      <TaxReimbursedByOrganizationAmt>0</TaxReimbursedByOrganizationAmt>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>The Organization</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>PO Box 12</AddressLine1Txt>
          <CityNm>North Andover</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01845</ZIPCd>
        </USAddress>
        <PhoneNum>9782677705</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>1</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>2575</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>10193</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10695</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10696</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2137</CurrentTaxYearAmt>
        <TotalAmt>36296</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>22453</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>11040</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>14175</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>20894</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>21935</CurrentTaxYearAmt>
        <TotalAmt>90497</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>25028</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>21233</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>24870</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>31590</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>24072</CurrentTaxYearAmt>
        <TotalAmt>126793</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>126793</PublicSupportTotal509Amt>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>800</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>337</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>432</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>400</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>900</CurrentTaxYearAmt>
        <TotalAmt>2869</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>25828</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>21570</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>25302</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>31990</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>24972</CurrentTaxYearAmt>
        <TotalAmt>129662</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.97790</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.98540</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>Conference</Event1Nm>
        <GrossReceiptsEvent1Amt>21685</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>21685</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>16639</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>21685</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>21685</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>16639</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>16639</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>5046</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 7 - Sales of Inventory</FormAndLineReferenceDesc>
        <ExplanationTxt>Income: Gross Receipts: 837. Returns and Allowances: 0. Less Cost of Goods Sold: 0. Gross Profit: 837.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 8 - Other Revenue</FormAndLineReferenceDesc>
        <ExplanationTxt>Description: Licensing and other miscellaneous. Amount: 900.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 16 - Other Expenses</FormAndLineReferenceDesc>
        <ExplanationTxt>Description: Advertising. Amount: 346. Description: Supplies. Amount: 1,257. Description: Website Expenses. Amount: 12,987. Description: Bank and Other Fees. Amount: 143. Description: Professional Dues and Subscriptions. Amount: 2,123. Description: Board Expenses. Amount: 583. Description: Education Materials. Amount: 135. Total to Form 990-EZ, line 16: 17,574.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc2278000001">
      <DeclarationDesc>The organization did not, during the year, receive any funds, directly,or indirectly, to pay premiums on a personal benefit contract.The organization, did not, during the year, pay any premiums, directly,or indirectly, on a personal benefit contract.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>