﻿<?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="2024v5.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-11-17T11:29:24-06:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>521738520</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>LANE &amp; COMPANY CPAS</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>5335 WISCONSIN AVE NW</AddressLine1Txt>
        <CityNm>WASHINGTON</CityNm>
        <StateAbbreviationCd>DC</StateAbbreviationCd>
        <ZIPCd>20015</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>841890106</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>CENTER FOR APPLIED ENVIRONMENTAL LAW</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>AND POLICY</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>CENT</BusinessNameControlTxt>
      <PhoneNum>9199438526</PhoneNum>
      <USAddress>
        <AddressLine1Txt>712 H ST NE 90006</AddressLine1Txt>
        <CityNm>WASHINGTON</CityNm>
        <StateAbbreviationCd>DC</StateAbbreviationCd>
        <ZIPCd>20002</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>JONAS MONAST</PersonNm>
      <PersonTitleTxt>EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>9199438526</PhoneNum>
      <SignatureDt>2025-11-17</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>ROBERT E LANE</PreparerPersonNm>
      <PTIN>P01622353</PTIN>
      <PhoneNum>2026172615</PhoneNum>
      <PreparationDt>2025-11-17</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>JONAS MONAST</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>712 H ST NE 90006</AddressLine1Txt>
        <CityNm>WASHINGTON</CityNm>
        <StateAbbreviationCd>DC</StateAbbreviationCd>
        <ZIPCd>20002</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>4162694</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.CAELP.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2019</FormationYr>
      <LegalDomicileStateCd>DC</LegalDomicileStateCd>
      <ActivityOrMissionDesc>CAELP SUPPORTS THE DEVELOPMENT AND IMPLEMENTATION OF ENVIRONMENTAL LAW SO THAT IT CAN HELP PROTECT INDIVIDUALS, COMMUNITIES, AND NATURAL SYSTEMS FROM ENVIRONMENTAL THREATS.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>6</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>6</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>11</TotalEmployeeCnt>
      <TotalVolunteersCnt>6</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>2190250</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>2220041</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>0</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>179974</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>209898</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>0</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>2370224</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>2429939</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>1331813</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>1707772</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>141824</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>2301433</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>1759843</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>3633246</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>3467615</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-1263022</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-1037676</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>6094797</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>4601931</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>475856</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>37091</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>5618941</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>4564840</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE CENTER FOR APPLIED ENVIRONMENTAL LAW AND POLICY (CAELP) WORKS TO SUPPORT ENVIRONMENTAL POLICIES THAT PROTECT INDIVIDUALS, COMMUNITIES, AND NATURAL SYSTEMS FROM ENVIRONMENTAL THREATS AND TO MAKE THE OFTEN HIDDEN COSTS OF ENVIRONMENTAL HARMS VISIBLE AND SALIENT.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>1206327</ExpenseAmt>
      <GrantAmt>0</GrantAmt>
      <RevenueAmt>0</RevenueAmt>
      <Desc>POWER SECTOR: CAELP CONDUCTS LEGAL AND TECHNICAL ANALYSIS TO SUPPORT LITIGATION AND REGULATORY ACTIONS THAT REDUCE CLIMATE AND PUBLIC HEALTH IMPACTS FROM THE ELECTRIC POWER SECTOR.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>792220</ExpenseAmt>
        <GrantAmt>0</GrantAmt>
        <RevenueAmt>0</RevenueAmt>
        <Desc>INDUSTRIAL SECTOR: CAELP CONDUCTS LEGAL AND TECHNICAL ANALYSIS TO SUPPORT REGULATORY PROTECTIONS AGAINST CLIMATE AND PUBLIC HEALTH POLLUTION FROM THE INDUSTRIAL SECTOR, WITH A FOCUS ON INDUSTRIAL HEAT.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>475041</ExpenseAmt>
        <GrantAmt>0</GrantAmt>
        <RevenueAmt>0</RevenueAmt>
        <Desc>TRANSPORTATION SECTOR: CAELP CONDUCTS LEGAL AND TECHNICAL ANALYSIS TO SUPPORT LITIGATION AND REGULATORY ACTIONS THAT REDUCE CLIMATE AND PUBLIC HEALTH IMPACTS FROM THE TRANSPORTATION SECTOR.</Desc>
      </ProgSrvcAccomActy3Grp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>344716</ExpenseAmt>
        <GrantAmt>0</GrantAmt>
        <RevenueAmt>0</RevenueAmt>
        <Desc>ADMINISTRATIVE LAW: CAELP CONDUCTS MONITORS, AND RESEARCHES ADMINISTRATIVE LAW DEVELOPMENTS IN U.S. COURTS AND DEVELOPS RESPONSES TO FACILITATE EFFECTIVE ENVIRONMENTAL POLICIES.</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>68943</ExpenseAmt>
        <GrantAmt>0</GrantAmt>
        <RevenueAmt>0</RevenueAmt>
        <Desc>STATES: CAELP CONDUCTS LEGAL AND POLICY RESEARCH AND ANALYSIS TO SUPPORT STATE-LEVEL REGULATORY PROTECTIONS AGAINST CLIMATE POLLUTION.</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcExpenseAmt>413659</TotalOtherProgSrvcExpenseAmt>
      <TotalOtherProgSrvcGrantAmt>0</TotalOtherProgSrvcGrantAmt>
      <TotalOtherProgSrvcRevenueAmt>0</TotalOtherProgSrvcRevenueAmt>
      <TotalProgramServiceExpensesAmt>2887247</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc1039600001">0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd referenceDocumentId="RetDoc1039600001">1</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc1039600001">0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">0</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>18</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>11</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>6</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>6</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>0</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>MEGAN FISCHER</PersonNm>
        <PhoneNum>9199438526</PhoneNum>
        <USAddress>
          <AddressLine1Txt>712 H ST NE STE 90006</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20002</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>NORMAN BAY</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GARY GUZY</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CARRIE JENKS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JUSTIN PIDOT</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KEVIN POLONCARZ</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SHELLEY WELTON</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JONAS MONAST</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR &amp; PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>240379</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>29074</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MEGAN FISCHER</PersonNm>
        <TitleTxt>DIRECTOR OF OPERATIONS, TREASURER, SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>30.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>68939</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>9454</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PETER HEISLER</PersonNm>
        <TitleTxt>SENIOR ATTORNEY</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>199290</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>15060</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PATRICK JACOBI</PersonNm>
        <TitleTxt>SENIOR ATTORNEY</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>192801</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>20856</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAMES DUFFY</PersonNm>
        <TitleTxt>SENIOR ATTORNEY</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>185400</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>26409</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GRACE VAN HORN</PersonNm>
        <TitleTxt>DIRECTOR OF POLICY ANALYSIS</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>183663</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>27496</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DANIEL ALVAREZ</PersonNm>
        <TitleTxt>ATTORNEY</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>143928</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>19898</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>1214400</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>148247</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>7</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ICF RESOURCES LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1902 RESTON PLZ</AddressLine1Txt>
            <CityNm>RESTON</CityNm>
            <StateAbbreviationCd>VA</StateAbbreviationCd>
            <ZIPCd>20190</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>POWER SECTOR MODELING</ServicesDesc>
        <CompensationAmt>327500</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>THE BRATTLE GROUP INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>ONE BEACON ST STE 2600</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02108</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROGRAMS CONSULTING</ServicesDesc>
        <CompensationAmt>298566</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PT STRATEGY &amp; INTELLIGENCE LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>7 ELLISON PARK</AddressLine1Txt>
            <CityNm>WALTHAM</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02452</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROGRAMS CONSULTING</ServicesDesc>
        <CompensationAmt>181125</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ENERGY AND ENVIORNMENTAL ECONOMICS INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>ONE BROADWAY 9TH FL</AddressLine1Txt>
            <CityNm>CAMBRIDGE</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02142</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROGRAMS CONSULTING</ServicesDesc>
        <CompensationAmt>174975</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ANALYSIS GROUP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>111 HUNTINGTON AVE 14TH FL</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02199</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROGRAMS CONSULTING</ServicesDesc>
        <CompensationAmt>150000</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>8</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>2220041</AllOtherContributionsAmt>
      <TotalContributionsAmt>2220041</TotalContributionsAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>209985</TotalRevenueColumnAmt>
        <ExclusionAmt>209985</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>1732668</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>1732755</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-87</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-87</TotalRevenueColumnAmt>
        <ExclusionAmt>-87</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>2429939</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>209898</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>347846</TotalAmt>
        <ProgramServicesAmt>278277</ProgramServicesAmt>
        <ManagementAndGeneralAmt>52177</ManagementAndGeneralAmt>
        <FundraisingAmt>17392</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>1064377</TotalAmt>
        <ProgramServicesAmt>851501</ProgramServicesAmt>
        <ManagementAndGeneralAmt>159656</ManagementAndGeneralAmt>
        <FundraisingAmt>53220</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>43389</TotalAmt>
        <ProgramServicesAmt>34712</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6508</ManagementAndGeneralAmt>
        <FundraisingAmt>2169</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>147534</TotalAmt>
        <ProgramServicesAmt>118027</ProgramServicesAmt>
        <ManagementAndGeneralAmt>22130</ManagementAndGeneralAmt>
        <FundraisingAmt>7377</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>104626</TotalAmt>
        <ProgramServicesAmt>83701</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15694</ManagementAndGeneralAmt>
        <FundraisingAmt>5231</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>17697</TotalAmt>
        <ManagementAndGeneralAmt>17697</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>51155</TotalAmt>
        <ManagementAndGeneralAmt>51155</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>16292</TotalAmt>
        <ManagementAndGeneralAmt>16292</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>1508382</TotalAmt>
        <ProgramServicesAmt>1508382</ProgramServicesAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>15598</TotalAmt>
        <ManagementAndGeneralAmt>15598</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>3069</TotalAmt>
        <ManagementAndGeneralAmt>3069</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <TravelGrp>
        <TotalAmt>50587</TotalAmt>
        <ProgramServicesAmt>12647</ProgramServicesAmt>
        <ManagementAndGeneralAmt>35411</ManagementAndGeneralAmt>
        <FundraisingAmt>2529</FundraisingAmt>
      </TravelGrp>
      <InsuranceGrp>
        <TotalAmt>19374</TotalAmt>
        <ManagementAndGeneralAmt>19374</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>OTHER DEVELOPMENT EXPEN</Desc>
        <TotalAmt>53906</TotalAmt>
        <FundraisingAmt>53906</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>DUES &amp; SUBSCRIPTIONS</Desc>
        <TotalAmt>23783</TotalAmt>
        <ManagementAndGeneralAmt>23783</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>3467615</TotalAmt>
        <ProgramServicesAmt>2887247</ProgramServicesAmt>
        <ManagementAndGeneralAmt>438544</ManagementAndGeneralAmt>
        <FundraisingAmt>141824</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>1727777</BOYAmt>
        <EOYAmt>162796</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>4367020</BOYAmt>
        <EOYAmt>4439135</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <TotalAssetsGrp>
        <BOYAmt>6094797</BOYAmt>
        <EOYAmt>4601931</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>475856</BOYAmt>
        <EOYAmt>37091</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>475856</BOYAmt>
        <EOYAmt>37091</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>3197505</BOYAmt>
        <EOYAmt>2858658</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>2421436</BOYAmt>
        <EOYAmt>1706182</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>5618941</BOYAmt>
        <EOYAmt>4564840</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>6094797</BOYAmt>
        <EOYAmt>4601931</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-1037676</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-16425</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>0</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>6306615</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4200000</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4495000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2190250</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2220041</CurrentTaxYearAmt>
        <TotalAmt>19411906</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>6306615</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4200000</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4495000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2190250</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2220041</CurrentTaxYearAmt>
        <TotalAmt>19411906</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>14396254</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>5015652</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3123</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>179994</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>209985</CurrentTaxYearAmt>
        <TotalAmt>393102</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>19805008</TotalSupportAmt>
      <PublicSupportCY170Pct>0.25330</PublicSupportCY170Pct>
      <TenPctFactsCrcmstncsTestCYInd>X</TenPctFactsCrcmstncsTestCYInd>
      <FactsAndCircumstancesTestTxt>THE CENTER FOR APPLIED ENVIRONMENTAL LAW AND POLICY (CAELP) MEETS THE FACTS-AND-CIRCUMSTANCES TEST FOR THE FOLLOWING REASONS: 1. CAELP MAINTAINS A BONE FIDE PROGRAM FOR SOLICITATION OF FUNDS FROM PUBLIC SOURCES TO SUPPORT PROJECTS AND PROGRAMS THAT PROMOTE ENVIRONMENTAL LAWS AND POLICIES THAT BENEFIT THE GENERAL PUBLIC. CAELP ACTIVELY SEEKS, AND HAS INCREASINGLY RECEIVED, GRANTS AND CONTRIBUTIONS FROM A VARIETY OF 170(B)(1)(A)(VI) PUBLICLY SUPPORTED CHARITIES AND WELCOMES RECEIPT OF DONATIONS FROM THE GENERAL PUBLIC VIA ITS WEBSITE DONATION PAGE. CAELP CONTINUES TO REFINE AND IMPLEMENT ITS FUNDRAISING STRATEGY TO INCREASE AND DIVERSIFY ITS SOURCES OF PUBLIC SUPPORT REVENUE.2. CAELP'S BOARD IS COMPRISED OF INDEPENDENT PERSONS THAT REPRESENT THE BROAD INTERESTS OF THE PUBLIC IN INFORMING AND CREATING SOUND ENVIRONMENTAL LAW AND POLICIES TO BENEFIT ALL. THE BOARD OF DIRECTORS INCLUDES MEMBERS FROM A CROSS-SECTION OF THE PUBLIC, SUCH AS FORMER FEDERAL GOVERNMENT OFFICIALS, MULTIPLE MEMBERS OF ACADEMIA (FROM BOTH PUBLIC AND PRIVATE UNIVERSITIES), AND THE PRIVATE SECTOR ENVIRONMENTAL LAW COMMUNITY. BOARD MEMBERS ARE SELECTED DUE TO THEIR KNOWLEDGE AND EXPERIENCE IN THE FIELDS OF ENVIRONMENTAL LAW, ENERGY LAW, AND PUBLIC POLICY TO ENSURE THAT THE GOVERNANCE OF CAELP IS BEST SUITED TO FURTHER THE ANALYSIS, CREATION, IMPLEMENTATION, AND DEFENSE OF SOUND, BENEFICIAL POLICIES THAT POSITIVELY IMPACT THE GENERAL PUBLIC.3. CAELP'S LEGAL AND TECHNICAL ANALYSIS EVALUATES AND INFORMS PUBLIC POLICY THROUGH REPORTS, PUBLICATIONS, REGULATORY COMMENTS, AND PUBLIC PRESENTATIONS. THE ANALYSIS IS DISSEMINATED TO THE PUBLIC VIA THE ORGANIZATION'S WEBSITE AND SHARED DIRECTLY WITH PUBLIC OFFICIALS AND OTHER NON-PROFIT ORGANIZATIONS FOR DISTRIBUTION MORE BROADLY TO SUPPORT LITIGATION AND REGULATORY ACTIONS THAT MITIGATE CLIMATE CHANGE AND IMPROVE PUBLIC HEALTH OUTCOMES.</FactsAndCircumstancesTestTxt>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <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>
    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="RetDoc1039600001">
      <TotalGrassrootsLobbyingGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalGrassrootsLobbyingGrp>
      <TotalDirectLobbyingGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalDirectLobbyingGrp>
      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalLobbyingExpendGrp>
      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>3467615</FilingOrganizationsTotalAmt>
      </OtherExemptPurposeExpendGrp>
      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>3467615</FilingOrganizationsTotalAmt>
      </TotalExemptPurposeExpendGrp>
      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>323381</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>80845</FilingOrganizationsTotalAmt>
      </GrassrootsNontaxableGrp>
      <TotLbbyngGrassrootMnsNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyngGrassrootMnsNonTxGrp>
      <TotLbbyExpendMnsLbbyngNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyExpendMnsLbbyngNonTxGrp>
      <AvgLobbyingNontaxableAmountGrp>
        <CurrentYearMinus3Amt>335523</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>281937</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>331662</CurrentYearMinus1Amt>
        <CurrentYearAmt>323381</CurrentYearAmt>
        <TotalAmt>1272503</TotalAmt>
      </AvgLobbyingNontaxableAmountGrp>
      <LobbyingCeilingAmt>1908755</LobbyingCeilingAmt>
      <AvgTotalLobbyingExpendGrp>
        <CurrentYearMinus3Amt>0</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>0</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>0</CurrentYearMinus1Amt>
        <CurrentYearAmt>0</CurrentYearAmt>
      </AvgTotalLobbyingExpendGrp>
      <AvgGrassrootsNontaxableGrp>
        <CurrentYearMinus3Amt>83881</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>70484</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>82916</CurrentYearMinus1Amt>
        <CurrentYearAmt>80845</CurrentYearAmt>
        <TotalAmt>318126</TotalAmt>
      </AvgGrassrootsNontaxableGrp>
      <GrassrootsCeilingAmt>477189</GrassrootsCeilingAmt>
      <AvgGrassrootsLobbyingExpendGrp>
        <CurrentYearMinus3Amt>0</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>0</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>0</CurrentYearMinus1Amt>
        <CurrentYearAmt>0</CurrentYearAmt>
      </AvgGrassrootsLobbyingExpendGrp>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <TotalBookValueLandBuildingsAmt>0</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>2397222</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-16425</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>-16425</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>2413647</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>16292</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>16292</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>2429939</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>3451323</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>3451323</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>16292</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>16292</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>3467615</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CENTER PERFORMED AN EVALUATION OF UNCERTAIN TAX POSITIONS FOR THE YEAR ENDED DECEMBER 31, 2024 AND DETERMINED THAT THERE WERE NO MATTERS THAT WOULD REQUIRE RECOGNITION ON THE FINANCIAL STATEMENTS OR THAT MAY HAVE ANY EFFECT ON ITS TAX-EXEMPT STATUS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JONAS MONAST</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR &amp; PRESIDENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>233609</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>6770</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>9475</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19599</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>269453</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PETER HEISLER</PersonNm>
        <TitleTxt>SENIOR ATTORNEY</TitleTxt>
        <BaseCompensationFilingOrgAmt>193891</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5399</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7756</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>7304</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>214350</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PATRICK JACOBI</PersonNm>
        <TitleTxt>SENIOR ATTORNEY</TitleTxt>
        <BaseCompensationFilingOrgAmt>187341</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5460</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7577</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>13279</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>213657</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JAMES DUFFY</PersonNm>
        <TitleTxt>SENIOR ATTORNEY</TitleTxt>
        <BaseCompensationFilingOrgAmt>180000</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5400</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7116</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19293</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>211809</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>GRACE VAN HORN</PersonNm>
        <TitleTxt>DIRECTOR OF POLICY ANALYSIS</TitleTxt>
        <BaseCompensationFilingOrgAmt>178359</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5304</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>6905</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>20591</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>211159</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DANIEL ALVAREZ</PersonNm>
        <TitleTxt>ATTORNEY</TitleTxt>
        <BaseCompensationFilingOrgAmt>140048</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>3880</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>5602</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>14296</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>163826</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS AND EXECUTIVE DIRECTOR REVIEW THE DRAFT OF THE FORM 990 PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH DIRECTOR, OFFICER, MEMBER OF A COMMITTEE WITH BOARD-DELEGATED POWERS AND KEY EMPLOYEE SHALL ANNUALLY SIGN A STATEMENT WHICH AFFIRMS THAT SUCH PERSON: HAS RECEIVED A SIGNED COPY OF THE POLICY OF THE ORGANIZATION; HAS READ AND UNDERSTANDS THIS POLICY; HAS AGREED TO COMPLY WITH THIS POLICY; AND UNDERSTANDS THAT THE ORGANIZATION MUST ENGAGE PRIMARILY IN ACTIVITIES WHICH ACCOMPLISH ONE OR MORE OF ITS STATED TAX-EXEMPT PURPOSES AND DOES NOT RESULT IN PRIVATE INUREMENT OR EXCESSIVE ECONOMIC BENEFIT TO PRIVATE INDIVIDUALS OR ENTITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>WHEN CONSIDERING COMPENSATION INCREASES, THE BOARD OF DIRECTORS REVIEWS COMPENSATION OF THE EXECUTIVE DIRECTOR ALONGSIDE COMPARABILITY DATA. THE BOARD OF DIRECTORS, WHICH IS COMPRISED OF INDEPENDENT PERSONS, VOTES ON EXECUTIVE DIRECTOR COMPENSATION AND DOCUMENTS THE DECISION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NO DOCUMENTS AVAILABLE TO THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>PROGRAMS CONSULTING: PROGRAM SERVICE EXPENSES 1,508,382. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 1,508,382.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G, OTHER FEES:</FormAndLineReferenceDesc>
        <ExplanationTxt>PROGRAMS CONSULTING: CAELP ENGAGES TECHNICAL AND LEGAL CONSULTANTS TO ANALYZE AND EVALUATE ENVIRONMENTAL POLICY CHOICES AND THEIR IMPACTS. CAELP MAKES THE ANALYSIS AVAILABLE TO THE PUBLIC, INCLUDING PUBLIC OFFICIALS AND OTHER PUBLIC CHARITIES, THROUGH PUBLISHED REPORTS AND REGULATORY FILINGS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>