﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2025v4.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-02-11T09:41:40-05:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>720738838</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>DARNALL SIKES &amp; FREDERICK</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1201 BRASHEAR AVE STE 301</AddressLine1Txt>
        <CityNm>MORGAN CITY</CityNm>
        <StateAbbreviationCd>LA</StateAbbreviationCd>
        <ZIPCd>703803218</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>920811914</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ATCHAFALAYA INTRACOASTAL COALITION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ATCH</BusinessNameControlTxt>
      <PhoneNum>9855193687</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 2255</AddressLine1Txt>
        <CityNm>MORGAN CITY</CityNm>
        <StateAbbreviationCd>LA</StateAbbreviationCd>
        <ZIPCd>70381</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>GREGORY J ROUSSEL</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>9855193687</PhoneNum>
      <SignatureDt>2026-02-11</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>DEREK A JETT CPA</PreparerPersonNm>
      <PTIN>P01932844</PTIN>
      <PhoneNum>9853846264</PhoneNum>
      <PreparationDt>2026-02-11</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="2">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>AICSM.ORG</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>66400</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>23019</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>4065</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>39316</MembershipDuesAmt>
      <TotalRevenueAmt>66400</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>13300</GrantsAndSimilarAmountsPaidAmt>
      <SalariesOtherCompEmplBnftAmt>26000</SalariesOtherCompEmplBnftAmt>
      <OtherExpensesTotalAmt>32643</OtherExpensesTotalAmt>
      <TotalExpensesAmt>71943</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-5543</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>107301</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>101758</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>107461</BOYAmt>
        <EOYAmt>120183</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>107461</BOYAmt>
        <EOYAmt>120183</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>160</BOYAmt>
        <EOYAmt>18425</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>107301</BOYAmt>
        <EOYAmt>101758</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THE ATCHAFALAYA INTRACOASTAL COALITION IS A NONPROFIT CORPORATION WHOSE MISSION SHALL BE THE PROMOTION OF ECONOMIC DEVELOPMENT WITHIN THE ST. MARY PARISH (AREA) AND THE ADVANCEMENT OF THOSE THINGS WHICH MAKE FOR THE CIVIC BETTERMENT OF THE AREA, INCLUDING THE FOLLOWING OBJECTS AND PURPOSES: - TO PROMOTE FELLOWSHIP AND A BETTER UNDERSTANDING OF THE MUTUAL PROBLEMS AFFECTING THOSE ENGAGED IN INDUSTRY AND BUSINESS. - TO RENDER A SERVICE TO THE MEMBERS AND COMMUNITY BY OFFERING ADVICE AND GUIDANCE ON MATTERS AFFECTING INDUSTRY. - TO ENCOURAGE THE APPLICATION OF SCIENTIFIC METHODS TO HUMAN PROBLEMS OF INDUSTRY AND BUSINESS THEREBY INCREASING EFFICIENCY. - TO KEEP IN TOUCH WITH MODEM THOUGHTS AND TRENDS IN INDUSTRY BY SECURING SPEAKERS OF PROMINENCE AND OUTSTANDING ABILITY IN THEIR VOCATIONS OR PROFESSIONS. - TO JOIN ALLIED ASSOCIATIONS, AND SEND DELEGATES TO REGIONAL MEETINGS AND CONVENTIONS, TO TAKE ANY OTHER ACTION GENERALLY CONSISTENT WITH THE GOALS OF THE ORGANIZATION.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>MONTHLY MEMBERSHIP LUNCHEON - A LUNCHEON IS HELD ON THE SECOND MONDAY OF EACH MONTH. A GUEST SPEAKER IS PRESENT WHO GIVES AN UPDATE ON ISSUES IMPACTING BUSINESS AND INDUSTRY IN OUR AREA. ATTENDANCE IS FREE FOR MEMBERS, AND GUESTS MAY ATTEND FOR A SMALL FEE.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>LOCAL GRANTS - GRANTS ARE MADE TOWARDS ORGANIZATIONS AND PROJECTS THAT PROMOTE ECONOMIC DEVELOPMENT AND ENTREPRENEURSHIP IN THE LOCAL AREA. FOUR GRANTS WERE MADE IN 2025.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>WILLIAM H HIDALGO JR</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TIMOTHY M KYLE</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.30</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>GREGORY J ROUSSEL</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KATE PATTERSON</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MICHAEL S WISE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.30</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DAN T CONRAD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.30</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TRACEY SCARBOROUGH</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.30</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CAROLINE MAGEE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.30</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>RIVERS PATOUT</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.30</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ROGER BEAUDEAN</PersonNm>
        <TitleTxt>EXECUTIVE DI</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>6.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>26000</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>GREGORY ROUSSEL</PersonNm>
        <USAddress>
          <AddressLine1Txt>7201 HIGHWAY 182 EAST</AddressLine1Txt>
          <CityNm>MORGAN CITY</CityNm>
          <StateAbbreviationCd>LA</StateAbbreviationCd>
          <ZIPCd>70380</ZIPCd>
        </USAddress>
        <PhoneNum>9853850380</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 10</FormAndLineReferenceDesc>
        <ExplanationTxt>CLASS OF ACTIVITY: EDUCATIONAL NAME: NICHOLLS STATE UNIVERSITY FOUNDATIO ADDRESS: 906 E 1ST STREET THIBODAUX, LA 70301 CASH CONTRIBUTION: 6,300</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES ADVERTISING AND PROMOTION 264 OFFICE 192 INFORMATION TECHNOLOGY 1,291 LUNCHEON EXPENSE 30,518 BANK CHARGES 378 TOTAL 32,643</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>DEFERRED REVENUE 160 18,425</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ATCHAFALAYA INTRACOASTAL COALITION IS A NONPROFIT CORPORATION WHOSE MISSION SHALL BE THE PROMOTION OF ECONOMIC DEVELOPMENT WITHIN THE ST. MARY PARISH (AREA) AND THE ADVANCEMENT OF THOSE THINGS WHICH MAKE FOR THE CIVIC BETTERMENT OF THE AREA, INCLUDING THE FOLLOWING OBJECTS AND PURPOSES: - TO PROMOTE FELLOWSHIP AND A BETTER UNDERSTANDING OF THE MUTUAL PROBLEMS AFFECTING THOSE ENGAGED IN INDUSTRY AND BUSINESS. - TO RENDER A SERVICE TO THE MEMBERS AND COMMUNITY BY OFFERING ADVICE AND GUIDANCE ON MATTERS AFFECTING INDUSTRY. - TO ENCOURAGE THE APPLICATION OF SCIENTIFIC METHODS TO HUMAN PROBLEMS OF INDUSTRY AND BUSINESS THEREBY INCREASING EFFICIENCY. - TO KEEP IN TOUCH WITH MODEM THOUGHTS AND TRENDS IN INDUSTRY BY SECURING SPEAKERS OF PROMINENCE AND OUTSTANDING ABILITY IN THEIR VOCATIONS OR PROFESSIONS. - TO JOIN ALLIED ASSOCIATIONS, AND SEND DELEGATES TO REGIONAL MEETINGS AND CONVENTIONS, TO TAKE ANY OTHER ACTION GENERALLY CONSISTENT WITH THE GOALS OF THE ORGANIZATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 28</FormAndLineReferenceDesc>
        <ExplanationTxt>MONTHLY MEMBERSHIP LUNCHEON - A LUNCHEON IS HELD ON THE SECOND MONDAY OF EACH MONTH. A GUEST SPEAKER IS PRESENT WHO GIVES AN UPDATE ON ISSUES IMPACTING BUSINESS AND INDUSTRY IN OUR AREA. ATTENDANCE IS FREE FOR MEMBERS, AND GUESTS MAY ATTEND FOR A SMALL FEE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>