<?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="2022v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-06-13T18:05:29-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-07-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>921372905</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>OPSAHL DAWSON</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>5209 CORPORATE CENTER CT SE</AddressLine1Txt>
        <CityNm>LACEY</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>98503</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2022-08-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>911490371</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>CENTENNIAL ELEMENTARY SCHOOL</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>BOOSTER ASSOCIATION</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>CENT</BusinessNameControlTxt>
      <PhoneNum>2064916551</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2637 45TH AVENUE SE</AddressLine1Txt>
        <CityNm>OLYMPIA</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>985014864</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>HOLLY PAULSBOE</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>2064916551</PhoneNum>
      <SignatureDt>2024-06-13</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>HOLLY</PersonFirstNm>
        <PersonLastNm>PAULSBOE</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>JOANNE KRUSZ</PreparerPersonNm>
      <PTIN>P00676843</PTIN>
      <PhoneNum>3604562100</PhoneNum>
      <PreparationDt>2024-06-02</PreparationDt>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>0</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2022</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.CENTENNIALBOOSTERCLUB.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc1039100001">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>49639</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>17889</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>21130</ProgramServiceRevenueAmt>
      <InvestmentIncomeAmt>30</InvestmentIncomeAmt>
      <FundraisingGrossIncomeAmt>5755</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>6041</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>-286</SpecialEventsNetIncomeLossAmt>
      <OtherRevenueTotalAmt>4835</OtherRevenueTotalAmt>
      <TotalRevenueAmt>43598</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>1442</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>1740</OccupancyRentUtltsAndMaintAmt>
      <OtherExpensesTotalAmt>34318</OtherExpensesTotalAmt>
      <TotalExpensesAmt>37500</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>6098</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>43939</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>50037</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>43939</BOYAmt>
        <EOYAmt>50037</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>0</BOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>43939</BOYAmt>
        <EOYAmt>50037</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>43939</BOYAmt>
        <EOYAmt>50037</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>PROVIDE FINANCIAL SUPPORT AND RESOURCES TO TEACHERS AND STUDENTS IN THE FORM OF SUPPLIES AND MATERIALS TO ENHANCE EDUCATION AND PROMOTE LEARNING.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>PROVIDE FINANCIAL SUPPORT AND RESOURCES TO TEACHERS AND STUDENTS IN THE FORM OF SUPPLIES AND MATERIALS TO ENHANCE EDUCATION AND PROMOTE LEARNING.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>19619</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>19619</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>AMY HILL</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ERINN ZEITLIN</PersonNm>
        <TitleTxt>VICE-PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>THERESA WOODWARD</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SARAH MILLER</PersonNm>
        <TitleTxt>CO-TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LORIEL MILLER</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DEBBIE RINENOUR</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JESSICA DAVIS</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>HOLLY PAULSBOE</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</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>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>HOLLY PAULSBOE</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2637 45TH AVENUE SE</AddressLine1Txt>
          <CityNm>OLYMPIA</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>98501</ZIPCd>
        </USAddress>
        <PhoneNum>3608678748</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>1883</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3676</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1274</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>13695</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>17889</CurrentTaxYearAmt>
        <TotalAmt>38417</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>50912</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>20540</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2450</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>27830</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25965</CurrentTaxYearAmt>
        <TotalAmt>127697</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>52795</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>24216</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3724</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>41525</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>43854</CurrentTaxYearAmt>
        <TotalAmt>166114</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>166114</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>75</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>62</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>60</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>30</CurrentTaxYearAmt>
        <TotalAmt>227</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>75</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>62</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>60</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>30</CurrentTaxYearAmt>
        <TotalAmt>227</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>52870</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>24278</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3784</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>41525</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>43884</CurrentTaxYearAmt>
        <TotalAmt>166341</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.99860</PublicSupportCY509Pct>
      <InvestmentIncomeCYPct>0.00140</InvestmentIncomeCYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: INTEREST. AMOUNT: 30.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 8 - OTHER REVENUE</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: YEARBOOK SALES. AMOUNT: 4,835.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: SUBCRIPTIONS. AMOUNT: 571. DESCRIPTION: GENERAL EXPENSES. AMOUNT: 620. DESCRIPTION: INSURANCE. AMOUNT: 725. DESCRIPTION: OFFICE. AMOUNT: 1,133. DESCRIPTION: SUPPLIES. AMOUNT: 513. DESCRIPTION: STAFF APPRECIATION. AMOUNT: 384. DESCRIPTION: EDUCATIONAL SUPPORT. AMOUNT: 5,427. DESCRIPTION: OTHER EVENTS. AMOUNT: 617. DESCRIPTION: MUSCIAL PLAY EXPENSES. AMOUNT: 7,962. DESCRIPTION: BATTLE OF THE BOOKS. AMOUNT: 852. DESCRIPTION: MOVIE NIGHT. AMOUNT: 1,538. DESCRIPTION: SCIENCE FAIR. AMOUNT: 973. DESCRIPTION: FALL SOCIAL. AMOUNT: 778. DESCRIPTION: APPAREL. AMOUNT: 3,989. DESCRIPTION: YEARBOOK. AMOUNT: 7,737. DESCRIPTION: EMERGENCY KITS. AMOUNT: 499. TOTAL TO FORM 990-EZ, LINE 16: 34,318.</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>
