﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2023v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-12-06T17:21:18-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>431667722</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>ROBERT M MIELZINER JR CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>225 S MERAMEC AVE STE 406</AddressLine1Txt>
        <CityNm>SAINT LOUIS</CityNm>
        <StateAbbreviationCd>MO</StateAbbreviationCd>
        <ZIPCd>63105</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>430495635</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ST LOUIS MAILERS UNION NO 3 CWA</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>LOCAL 14620 C/O TANYA GREER-POWERS</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>STLO</BusinessNameControlTxt>
      <PhoneNum>3143305925</PhoneNum>
      <USAddress>
        <AddressLine1Txt>318 ROBERTA AVE</AddressLine1Txt>
        <CityNm>ST LOUIS</CityNm>
        <StateAbbreviationCd>MO</StateAbbreviationCd>
        <ZIPCd>63135</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>TANYA GREER-POWERS</PersonNm>
      <PersonTitleTxt>SEC/TREAS</PersonTitleTxt>
      <SignatureDt>2024-12-06</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>false</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>ROBERT M MIELZINER JR CPA</PreparerPersonNm>
      <PTIN>P00173403</PTIN>
      <PhoneNum>3147211966</PhoneNum>
      <PreparationDt>2024-12-06</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="2">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <GroupExemptionNum>0010</GroupExemptionNum>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="5">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>65103</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ProgramServiceRevenueAmt>60868</ProgramServiceRevenueAmt>
      <InvestmentIncomeAmt>4235</InvestmentIncomeAmt>
      <TotalRevenueAmt>65103</TotalRevenueAmt>
      <BenefitsPaidToOrForMembersAmt>3000</BenefitsPaidToOrForMembersAmt>
      <SalariesOtherCompEmplBnftAmt>44954</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>11425</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>64479</OtherExpensesTotalAmt>
      <TotalExpensesAmt>123858</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-58755</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>289306</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>230551</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>288671</BOYAmt>
        <EOYAmt>231139</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>2138</BOYAmt>
        <EOYAmt>2138</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>290809</BOYAmt>
        <EOYAmt>233277</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>1503</BOYAmt>
        <EOYAmt>2726</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>289306</BOYAmt>
        <EOYAmt>230551</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>LOCAL SHALL BE TO REPRESENT AND SERVE THE WORKERS WITHIN ITS JURISDICTION IN ACCORDANCE WITHIN THE UNION.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>LOCAL SHALL BE TO REPRESENT AND SERVE THE WORKERS WITHIN ITS JURISDICTION IN ACCORDANCE WITHIN THE UNION.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>LOCAL SHALL BE TO REPRESENT AND SERVE THE WORKERS WITHIN ITS JURISDICTION IN ACCORDANCE WITHIN THE UNION.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>RODNEY BRYANT</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TANYA GREER-POWERS</PersonNm>
        <TitleTxt>SEC/TREAS</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SCYLNEICE C COLEMAN</PersonNm>
        <TitleTxt>VICE-PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>EDWARD CRAWFORD</PersonNm>
        <TitleTxt>RECORD SEC</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>TANYA GREER-POWERS</PersonNm>
        <USAddress>
          <AddressLine1Txt>318 ROBERTA AVE</AddressLine1Txt>
          <CityNm>ST LOUIS</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63135</ZIPCd>
        </USAddress>
        <PhoneNum>3143305925</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
    </IRS990EZ>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES CONFERENCES &amp; MEETINGS 28,316 CWA DUES 27,019 INSURANCE EXPENSE 685 OFFICE EXPENSE 3,260 PAYROLL TAXES 3,614 PRINTING &amp; PUBLICATIONS 1,585 TOTAL 64,479</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24</FormAndLineReferenceDesc>
        <ExplanationTxt>EQUIPMENT 2,138 2,138 TOTAL 2,138 2,138</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>PAYROLL TAXES WITHHELD 1,503 2,726</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>LOCAL SHALL BE TO REPRESENT AND SERVE THE WORKERS WITHIN ITS JURISDICTION IN ACCORDANCE WITHIN THE UNION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 31</FormAndLineReferenceDesc>
        <ExplanationTxt>LOCAL SHALL BE TO REPRESENT AND SERVE THE WORKERS WITHIN ITS JURISDICTION IN ACCORDANCE WITHIN THE UNION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>