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        <TitleTxt>DIRECTOR</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>1572011</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
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      <IndivRcvdGreaterThan100KCnt>6</IndivRcvdGreaterThan100KCnt>
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      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>RESERVOIR COMMUNICATIONS GROUP LLP</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>607 14th Street NW Suite 675</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20005</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PR Consultants</ServicesDesc>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>Covington Burling</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
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            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20005</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Legal Services</ServicesDesc>
        <CompensationAmt>1352022</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>ALSTON BIRD LLP</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>950 F Street NW</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20005</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Legal Services</ServicesDesc>
        <CompensationAmt>1098312</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>Rampy Northrup</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1390 Chain Bridge Road 455</AddressLine1Txt>
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            <StateAbbreviationCd>VA</StateAbbreviationCd>
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          </USAddress>
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      <ContractorCompensationGrp>
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        </ContractorName>
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          <USAddress>
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            <StateAbbreviationCd>GA</StateAbbreviationCd>
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      <ProgramServiceRevenueGrp>
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      <ProgramServiceRevenueGrp>
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      <NetGainOrLossInvestmentsGrp>
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      <NetIncomeFromGamingGrp>
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      <GrantsToDomesticIndividualsGrp>
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      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
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      <BenefitsToMembersGrp>
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      <CompDisqualPersonsGrp>
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      <FeesForServicesLegalGrp>
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      <FeesForServicesAccountingGrp>
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      <FeesForServicesProfFundraising>
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      <OfficeExpensesGrp>
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      <InformationTechnologyGrp>
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      <ConferencesMeetingsGrp>
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      <InterestGrp>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
        <Desc>SUBSCRIPTIONS &amp; DUES</Desc>
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      <OtherExpensesGrp>
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      <TaxExemptBondLiabilitiesGrp>
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      <EscrowAccountLiabilityGrp>
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      <OtherLiabilitiesGrp>
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      <TotalLiabilitiesGrp>
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      <DonorRestrictionNetAssetsGrp>
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      <TotLiabNetAssetsFundBalanceGrp>
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      <ReconcilationRevenueExpnssAmt>216037</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-95627</NetUnrlzdGainsLossesInvstAmt>
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      <MethodOfAccountingOtherInd methodOfAccountingOtherDesc="MODIFIED CASH">X</MethodOfAccountingOtherInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleB documentId="IRS990ScheduleB">
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        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
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    <IRS990ScheduleC documentId="IRS990ScheduleC">
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      <TotalDirectLobbyingGrp />
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      <TotalExemptPurposeExpendGrp />
      <LobbyingNontaxableAmountGrp />
      <GrassrootsNontaxableGrp />
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      <TotLbbyExpendMnsLbbyngNonTxGrp />
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    <IRS990ScheduleD documentId="IRS990ScheduleD">
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      <HeldWorksArtGrp />
      <CYMinus3YrEndwmtFundGrp />
      <CYMinus4YrEndwmtFundGrp />
      <LandGrp />
      <BuildingsGrp />
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      <FinancialDerivativesGrp />
      <CloselyHeldEquityInterestsGrp />
      <OtherSecuritiesGrp>
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      <TotalLiabilityAmt>0</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>8541415</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-95627</NetUnrealizedGainsInvstAmt>
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      <ExpensesSubtotalAmt>8421005</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>11105</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>11105</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>8432110</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE D, PART X:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACLA IS EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(6) OF THE INTERNAL REVENUE CODE (THE CODE) ON INCOME OTHER THAN UNRELATED BUSINESS INCOME. THE ORGANIZATION HAD NO SIGNIFICANT UNRELATED TAXABLE BUSINESS INCOME DURING THE YEAR ENDED DECEMBER 31, 2022, AND THEREFORE NO PROVISION FOR INCOME TAXES HAS BEEN RECORDED IN THE ACCOMPANYING FINANCIAL STATEMENTS - MODIFIED CASH BASIS. ACLA IS NOT CONSIDERED TO BE A PRIVATE FOUNDATION WITHIN THE MEANING OF SECTION 509(A) OF THE CODE. FEDERAL AND STATE INCOME TAX RETURNS FOR YEARS PRIOR TO DECEMBER 31, 2019 ARE SUBJECT TO EXAMINATION BY APPLICABLE TAXING AUTHORITIES. MANAGEMENT HAS EVALUATED ACLA'S TAX POSITIONS AND HAS CONCULDED THAT ACLA HAS TO TAKEN NO MATERIAL UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENTS TO THE FINANCIAL STATEMENTS TO COMPLY WITH THE PROVISIONS OF THIS GUIDANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ">
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      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>THOMAS SPARKMAN</PersonNm>
        <TitleTxt>SR. VICE PRESIDENT</TitleTxt>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12282</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>417156</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SHARON WEST</PersonNm>
        <TitleTxt>VICE PRESIDENT (THRU 9/22)</TitleTxt>
        <BaseCompensationFilingOrgAmt>196457</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>42022</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>42022</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>280501</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOAN KEGERIZE</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>170916</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>21184</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>22542</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22694</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>237336</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CHERYL HAWKINS</PersonNm>
        <TitleTxt>EXECUTIVE ADMINISTRATOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>166782</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>19932</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>33220</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>18253</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>238187</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SUSAN VAN METER</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>432692</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>70000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1702</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>504394</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ADAM BORDEN</PersonNm>
        <TitleTxt>SR. VICE PRESIDENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>129924</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>20250</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>5860</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>156034</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>TO ANALYZE AND MONITOR LEGISLATION AND REGULATIONS AFFECTING CLINICAL LABORATORIES AND TO EDUCATE INDIVIDUALS ABOUT THESE ISSUES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACLA MEMBERS ARE LABORATORIES, SOME HOSPITAL-BASED, LOCATED IN THE UNITED STATES. ACLA MEMBERS ARE GOVERNED BY THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACLA'S NOMINATING COMMITTEE CONSISTS OF 5 BOARD MEMBERS WHO PROVIDE RECOMMENDATIONS TO THE FULL BOARD ON APPLICATIONS SUBMITTED FOR MEMBERSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACLA'S PRESIDENT, BOARD CHAIR, AND TREASURER PROVIDE RECOMMENDATIONS TO THE FULL BOARD FOR ACLA MEMBERS REQUESTING TO SERVE ON THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B:</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS REVIEWED BY THE ACLA PRESIDENT, SUSAN VAN METER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINES 15A AND 15B:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE INDEPENDENT MEMBERS OF THE BOARD REVIEW SALARIES AND BENEFITS OF OTHER LIKE-INDUSTRY EXECUTIVES WHO HAVE SIMILAR DUTIES TO SET THE PRESIDENT'S COMPENSATION. THE PRESIDENT IS AUTHORIZED TO DETERMINE THE COMPENSATION FOR THE OTHER OFFICERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACLA CODE OF CONDUCT IS AVAILABLE ON ITS WEBSITE. FINANCIAL STATEMENTS AND GOVERNING DOCUMENTS MAY BE REVIEWED BY MEMBERS UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION USES A MODIFIED CASH BASIS OF ACCOUNTING TO PREPARE FORM 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 PART IX LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION:PAYROLL SERVICE TOTAL FEES:4310</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 PART IX LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION:OTHER CONSULTING FEES TOTAL FEES:2916714</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>