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        <classId>C000234662</classId>
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        <classId>C000234660</classId>
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      <regFileNumber>811-02688</regFileNumber>
      <regCik>0000225635</regCik>
      <regLei>549300RTFZS1V1PV8C63</regLei>
      <regStreet1>100 Bellevue Parkway</regStreet1>
      <regCity>Wilmington</regCity>
      <regStateConditional regCountry="US" regState="US-DE"/>
      <regZipOrPostalCode>19809</regZipOrPostalCode>
      <regPhone>800-441-7762</regPhone>
      <seriesName>BlackRock Impact Municipal Fund</seriesName>
      <seriesId>S000075512</seriesId>
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      <repPdEnd>2024-05-31</repPdEnd>
      <repPdDate>2023-08-31</repPdDate>
      <isFinalFiling>N</isFinalFiling>
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      <totLiabs>252265.21</totLiabs>
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      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
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        <name>Colorado School of Mines</name>
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      <invstOrSec>
        <name>Louisville/Jefferson County Metropolitan Government</name>
        <lei>N/A</lei>
        <title>LOUISVILLE &amp; JEFFERSON CNTY KY MET GOVT HOSP REVENUE</title>
        <cusip>54660DAA7</cusip>
        <identifiers>
          <isin value="US54660DAA72"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1043279.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Washington Metropolitan Area Transit Authority Dedicated Revenue</name>
        <lei>N/A</lei>
        <title>WASHINGTON DC MET AREA TRANSIT AUTH DEDICATED REVENUE</title>
        <cusip>93878YCS6</cusip>
        <identifiers>
          <isin value="US93878YCS63"/>
        </identifiers>
        <balance>250000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>236184.25000000</valUSD>
        <pctVal>0.499011588507</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-07-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.13000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Pennsylvania Housing Finance Agency</name>
        <lei>549300JZVUPNWP77SP29</lei>
        <title>PENNSYLVANIA ST HSG FIN AGY SF MTGE REVENUE</title>
        <cusip>70879QSA2</cusip>
        <identifiers>
          <isin value="US70879QSA21"/>
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        <balance>465000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>461611.55000000</valUSD>
        <pctVal>0.975295824505</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.25000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Brevard County Health Facilities Authority</name>
        <lei>N/A</lei>
        <title>BREVARD CNTY FL HLTH FACS AUTH REVENUE</title>
        <cusip>107416QN2</cusip>
        <identifiers>
          <isin value="US107416QN22"/>
        </identifiers>
        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>920968.00000000</valUSD>
        <pctVal>1.945827059359</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-04-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Mississippi Business Finance Corp</name>
        <lei>549300DYV074JUDKBQ77</lei>
        <title>MISSISSIPPI ST BUSINESS FIN CORP EXEPT FACS REVENUE</title>
        <cusip>60528DAA6</cusip>
        <identifiers>
          <isin value="US60528DAA63"/>
        </identifiers>
        <balance>100000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>77864.80000000</valUSD>
        <pctVal>0.164513245641</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-07-15</maturityDt>
          <couponKind>Floating</couponKind>
          <annualizedRt>7.75000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Battery Park City Authority</name>
        <lei>549300RF3SFDOWRHVM56</lei>
        <title>BATTERY PARK CITY NY AUTH</title>
        <cusip>07133AHJ4</cusip>
        <identifiers>
          <isin value="US07133AHJ43"/>
        </identifiers>
        <balance>1500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1450330.50000000</valUSD>
        <pctVal>3.064267522773</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-11-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Connecticut State Health &amp; Educational Facilities Authority</name>
        <lei>549300ZOQJ5U8YBS5Q35</lei>
        <title>CONNECTICUT ST HLTH &amp; EDUCTNL FACS AUTH REVENUE</title>
        <cusip>20775DVQ2</cusip>
        <identifiers>
          <isin value="US20775DVQ23"/>
        </identifiers>
        <balance>180000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>193014.00000000</valUSD>
        <pctVal>0.407801209200</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-07-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Duluth Economic Development Authority</name>
        <lei>N/A</lei>
        <title>DULUTH MN ECON DEV AUTH HLTH CARE FACS REVENUE</title>
        <cusip>26444CKJ0</cusip>
        <identifiers>
          <isin value="US26444CKJ08"/>
        </identifiers>
        <balance>500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>498067.50000000</valUSD>
        <pctVal>1.052320187984</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-06-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Chicago Board of Trade</name>
        <lei>549300EX04Q2QBFQTQ27</lei>
        <title>US LONG BOND(CBT) DEC23</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="BlackRock Identifier" value="USZ320232"/>
        </identifiers>
        <balance>-34.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>-38530.36000000</valUSD>
        <pctVal>-0.08140719014</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DIR</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
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              <counterpartyName>Chicago Board of Trade</counterpartyName>
              <counterpartyLei>549300EX04Q2QBFQTQ27</counterpartyLei>
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            <payOffProf>Short</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>CBOT U.S. Long Bond Futures</indexName>
                <indexIdentifier>USZ3 Comdty</indexIdentifier>
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            <expDate>2023-12-19</expDate>
            <notionalAmt>-4094594.64000000</notionalAmt>
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            <unrealizedAppr>-38530.36000000</unrealizedAppr>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Ludington Area School District</name>
        <lei>N/A</lei>
        <title>LUDINGTON MI AREA SCH DIST</title>
        <cusip>549637GU4</cusip>
        <identifiers>
          <isin value="US549637GU47"/>
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        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>912739.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-05-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>City of Philadelphia PA Water &amp; Wastewater Revenue</name>
        <lei>N/A</lei>
        <title>PHILADELPHIA PA WTR &amp; WSTWTR REVENUE</title>
        <cusip>717893Z79</cusip>
        <identifiers>
          <isin value="US717893Z790"/>
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        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1084681.00000000</valUSD>
        <pctVal>2.291720929036</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Finance Authority of Maine</name>
        <lei>N/A</lei>
        <title>MAINE ST FIN AUTH</title>
        <cusip>56042BBU0</cusip>
        <identifiers>
          <isin value="US56042BBU08"/>
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        <balance>100000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>62424.30000000</valUSD>
        <pctVal>0.131890458844</pctVal>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>8.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Southeastern Pennsylvania Transportation Authority</name>
        <lei>98450061A2F3FD36E493</lei>
        <title>S ESTRN PA TRANSPRTN AUTH</title>
        <cusip>842039FQ7</cusip>
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          <isin value="US842039FQ70"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1084041.00000000</valUSD>
        <pctVal>2.290368732957</pctVal>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>University of Arkansas</name>
        <lei>549300FFADBQ3NEI2D96</lei>
        <title>UNIV OF ARKANSAS AR UNIV REVENUE</title>
        <cusip>914073DU2</cusip>
        <identifiers>
          <isin value="US914073DU21"/>
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        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1064555.00000000</valUSD>
        <pctVal>2.249198587981</pctVal>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-04-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>New Hope Cultural Education Facilities Finance Corp</name>
        <lei>N/A</lei>
        <title>NEW HOPE CULTURAL ED FACS FIN CORP TX RETIREMENT FAC REVENUE</title>
        <cusip>64542UGF5</cusip>
        <identifiers>
          <isin value="US64542UGF57"/>
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        <balance>100000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>89213.60000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>6.63000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Jefferson Parish Consolidated Sewerage District No 1</name>
        <lei>N/A</lei>
        <title>JEFFERSON PARISH LA CONSOL SEWERAGE DIST #1 SWR REVENUE</title>
        <cusip>474481AS7</cusip>
        <identifiers>
          <isin value="US474481AS78"/>
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        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>953375.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2039-02-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Illinois Housing Development Authority</name>
        <lei>54930053Z6M9JVHBQZ16</lei>
        <title>ILLINOIS ST HSG DEV AUTH REVENUE</title>
        <cusip>45203MKB6</cusip>
        <identifiers>
          <isin value="US45203MKB62"/>
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        <balance>340000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>364976.40000000</valUSD>
        <pctVal>0.771124463768</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>6.25000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Tennessee Housing Development Agency</name>
        <lei>N/A</lei>
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      <invstOrSec>
        <name>Louisiana Public Facilities Authority</name>
        <lei>549300RQIPT5S4P4M065</lei>
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        <cusip>546399PH3</cusip>
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          <isin value="US546399PH39"/>
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      <invstOrSec>
        <name>City of Henderson KY</name>
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      <invstOrSec>
        <name>Tarrant County Cultural Education Facilities Finance Corp</name>
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        <curCd>USD</curCd>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2052-11-15</maturityDt>
          <couponKind>Floating</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>New York City Housing Development Corp</name>
        <lei>549300SQWVHKBRF8D702</lei>
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          <isin value="US64972E3A50"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>983921.00000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2047-11-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.75000000</annualizedRt>
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      <invstOrSec>
        <name>New Hampshire Business Finance Authority</name>
        <lei>N/A</lei>
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          <isin value="US63607WAC82"/>
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        <curCd>USD</curCd>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2036-09-20</maturityDt>
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          <annualizedRt>4.38000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Affordable Housing Opportunities Trust Series AH-01</name>
        <lei>N/A</lei>
        <title>AFFORDABLE HSG OPPORTUNITIES TRUST</title>
        <cusip>00826SAD2</cusip>
        <identifiers>
          <isin value="US00826SAD27"/>
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        <balance>79640.89000000</balance>
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        <curCd>USD</curCd>
        <valUSD>70086.37000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>3</fairValLevel>
        <debtSec>
          <maturityDt>2039-05-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>6.88000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Nassau County Local Economic Assistance Corp</name>
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        <cusip>63165CAB8</cusip>
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          <isin value="US63165CAB81"/>
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        <balance>1000000.00000000</balance>
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        <valUSD>991554.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>University of Utah/The</name>
        <lei>N/A</lei>
        <title>UNIV OF UTAH UT REVENUES</title>
        <cusip>915183X77</cusip>
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          <isin value="US915183X775"/>
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        <balance>1500000.00000000</balance>
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        <valUSD>1450305.00000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2043-08-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
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        <name>Minnesota Housing Finance Agency</name>
        <lei>549300R89XDTQBK4GE22</lei>
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        <balance>340000.00000000</balance>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2053-01-01</maturityDt>
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        <name>Chicago Board of Trade</name>
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      <invstOrSec>
        <name>Arkansas Development Finance Authority</name>
        <lei>N/A</lei>
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          <isin value="US04108WCE03"/>
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        <name>State of Oregon Housing &amp; Community Services Department</name>
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        <name>Arlington Higher Education Finance Corp</name>
        <lei>N/A</lei>
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        <name>St Lucie County School Board</name>
        <lei>N/A</lei>
        <title>SAINT LUCIE CNTY FL SCH BRD COPS</title>
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      <invstOrSec>
        <name>Arizona Industrial Development Authority</name>
        <lei>N/A</lei>
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          <isin value="US04052EAY41"/>
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      <invstOrSec>
        <name>Arkansas Development Finance Authority</name>
        <lei>N/A</lei>
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          <isin value="US04110FAB13"/>
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      <invstOrSec>
        <name>Utah Infrastructure Agency</name>
        <lei>549300WD2FDRNXU16V82</lei>
        <title>UTAH INFRASTRUCTURE AGY TELECOMUNICATION REVENUE</title>
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          <isin value="US917467CG50"/>
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        <balance>250000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>256068.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2032-10-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Arlington Higher Education Finance Corp</name>
        <lei>N/A</lei>
        <title>ARLINGTON TX HGR EDU FIN CORP EDU REVENUE</title>
        <cusip>0418067Q7</cusip>
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          <isin value="US0418067Q77"/>
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        <balance>500000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>524356.50000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2047-08-15</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>Denver City &amp; County School District No 1</name>
        <lei>N/A</lei>
        <title>DENVER CITY &amp; CNTY CO SCH DIST #1</title>
        <cusip>249174YN7</cusip>
        <identifiers>
          <isin value="US249174YN73"/>
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        <balance>500000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>543852.50000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>California State Public Works Board</name>
        <lei>N/A</lei>
        <title>CALIFORNIA ST PUBLIC WKS BRD LEASE REVENUE</title>
        <cusip>13068XFG9</cusip>
        <identifiers>
          <isin value="US13068XFG97"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>966010.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-05-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Chicago Board of Education</name>
        <lei>54930099NR6T9V7LVB43</lei>
        <title>CHICAGO IL BRD OF EDU</title>
        <cusip>167505YB6</cusip>
        <identifiers>
          <isin value="US167505YB63"/>
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        <balance>500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>488203.00000000</valUSD>
        <pctVal>1.031478409521</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Massachusetts Bay Transportation Authority Assessment Revenue</name>
        <lei>N/A</lei>
        <title>MASSACHUSETTS BAY MA TRANSPRTN AUTH REVENUE</title>
        <cusip>575577NZ0</cusip>
        <identifiers>
          <isin value="US575577NZ08"/>
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        <balance>1500000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1595719.50000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      <invstOrSec>
        <name>Chicago Board of Trade</name>
        <lei>549300EX04Q2QBFQTQ27</lei>
        <title>US 5YR NOTE (CBT) DEC23</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="BlackRock Identifier" value="FVZ320232"/>
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        <balance>-14.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>-10560.30000000</valUSD>
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        <assetCat>DIR</assetCat>
        <issuerConditional desc="derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <futrDeriv derivCat="FUT">
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              <counterpartyName>Chicago Board of Trade</counterpartyName>
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            <payOffProf>Short</payOffProf>
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              <indexBasketInfo>
                <indexName>CBOT 5 Year U.S. Treasury Notes</indexName>
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            <unrealizedAppr>-10560.30000000</unrealizedAppr>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Georgia Housing &amp; Finance Authority</name>
        <lei>549300I628IMF9PWV724</lei>
        <title>GEORGIA ST HSG &amp; FIN AUTH REVENUE</title>
        <cusip>37353PJP5</cusip>
        <identifiers>
          <isin value="US37353PJP53"/>
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        <balance>325000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>320883.55000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      <invstOrSec>
        <name>BlackRock Liquidity Funds</name>
        <lei>5493007YVNX55LTRQ706</lei>
        <title>BlackRock Liquidity Funds: MuniCash, Institutional Shares</title>
        <cusip>09248U841</cusip>
        <identifiers>
          <isin value="US09248U8412"/>
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        <balance>658401.37000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>658401.37000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Metropolitan Transportation Authority</name>
        <lei>5493000TKYODLXADQD60</lei>
        <title>MET TRANSPRTN AUTH NY REVENUE</title>
        <cusip>59261AD87</cusip>
        <identifiers>
          <isin value="US59261AD879"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1013205.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>North Carolina Housing Finance Agency</name>
        <lei>EC4EE0PS5OP5O69B5C39</lei>
        <title>NORTH CAROLINA ST HSG FIN AGY HOMEOWNERSHIP REVENUE</title>
        <cusip>658207Q65</cusip>
        <identifiers>
          <isin value="US658207Q652"/>
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        <balance>240000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>234506.16000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>3.75000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Maryland Economic Development Corp</name>
        <lei>549300JJ16DDBSZWSN94</lei>
        <title>MARYLAND ST ECON DEV CORP PRIV ACTIVITY REVENUE</title>
        <cusip>57422JBY3</cusip>
        <identifiers>
          <isin value="US57422JBY38"/>
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        <balance>715000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>726914.05000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-06-30</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Build NYC Resource Corp</name>
        <lei>549300GROJFKMNLWEK84</lei>
        <title>BUILD NYC RESOURCE CORP NY REVENUE</title>
        <cusip>12008ETJ5</cusip>
        <identifiers>
          <isin value="US12008ETJ54"/>
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        <balance>250000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>250678.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.75000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Texas State Technical College</name>
        <lei>N/A</lei>
        <title>TEXAS ST TECH CLG SYS FING SYS REVENUE</title>
        <cusip>88276RFJ6</cusip>
        <identifiers>
          <isin value="US88276RFJ68"/>
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        <balance>665000.00000000</balance>
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        <valUSD>733144.55000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-08-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
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      <invstOrSec>
        <name>Arizona Industrial Development Authority</name>
        <lei>N/A</lei>
        <title>ARIZONA ST INDL DEV AUTH EDU REVENUE</title>
        <cusip>04052BSY1</cusip>
        <identifiers>
          <isin value="US04052BSY10"/>
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        <balance>150000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>139396.35000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
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      <invstOrSec>
        <name>Build NYC Resource Corp</name>
        <lei>549300GROJFKMNLWEK84</lei>
        <title>BUILD NYC RESOURCE CORP NY REVENUE</title>
        <cusip>12008EUP9</cusip>
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          <isin value="US12008EUP95"/>
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        <balance>250000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>233451.25000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2063-06-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
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        <securityLending>
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      <invstOrSec>
        <name>Chicago Transit Authority Sales Tax Receipts Fund</name>
        <lei>N/A</lei>
        <title>CHICAGO IL TRANSIT AUTH SALES TAX RECPTS REVENUE</title>
        <cusip>16772PDN3</cusip>
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        <valUSD>1237706.40000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2057-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>New York City Housing Development Corp</name>
        <lei>549300SQWVHKBRF8D702</lei>
        <title>NEW YORK CITY NY HSG DEV CORP MF HSG REVENUE</title>
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          <isin value="US64972E4F39"/>
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        <balance>225000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>221316.98000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-11-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.60000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Pittsburgh Water &amp; Sewer Authority</name>
        <lei>54930034DVH6W22T1E86</lei>
        <title>PITTSBURGH PA WTR &amp; SWR AUTH</title>
        <cusip>725304YA1</cusip>
        <identifiers>
          <isin value="US725304YA13"/>
        </identifiers>
        <balance>225000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>236555.10000000</valUSD>
        <pctVal>0.499795122750</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-09-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>New York State Housing Finance Agency</name>
        <lei>5493000LS7KCDB02O506</lei>
        <title>NEW YORK ST HSG FIN AGY AFFORDABLE HSG REVENUE</title>
        <cusip>64987JH38</cusip>
        <identifiers>
          <isin value="US64987JH387"/>
        </identifiers>
        <balance>735000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>724292.52000000</valUSD>
        <pctVal>1.530289851881</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2062-11-01</maturityDt>
          <couponKind>Floating</couponKind>
          <annualizedRt>3.80000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Chicago Board of Education</name>
        <lei>54930099NR6T9V7LVB43</lei>
        <title>CHICAGO IL BRD OF EDU</title>
        <cusip>167505XJ0</cusip>
        <identifiers>
          <isin value="US167505XJ09"/>
        </identifiers>
        <balance>500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>516766.00000000</valUSD>
        <pctVal>1.091826497942</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2033-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Henrico County Economic Development Authority</name>
        <lei>N/A</lei>
        <title>HENRICO CNTY VA ECON DEV AUTH RSDL CARE FAC REVENUE</title>
        <cusip>42605QHM8</cusip>
        <identifiers>
          <isin value="US42605QHM87"/>
        </identifiers>
        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>983299.00000000</valUSD>
        <pctVal>2.077520393369</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>District of Columbia</name>
        <lei>549300HWFOZXPKGOX654</lei>
        <title>DIST OF COLUMBIA REVENUE</title>
        <cusip>25483VZY3</cusip>
        <identifiers>
          <isin value="US25483VZY37"/>
        </identifiers>
        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1124738.00000000</valUSD>
        <pctVal>2.376353613903</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2034-02-28</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Sumter County Industrial Development Authority/AL</name>
        <lei>N/A</lei>
        <title>SUMTER CNTY AL INDL DEV AUTH EXEMPT FACS REVENUE</title>
        <cusip>86651LAA2</cusip>
        <identifiers>
          <isin value="US86651LAA26"/>
        </identifiers>
        <balance>100000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>71392.60000000</valUSD>
        <pctVal>0.150838740236</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-07-15</maturityDt>
          <couponKind>Floating</couponKind>
          <annualizedRt>6.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Southern Ohio Port Authority</name>
        <lei>N/A</lei>
        <title>STHRN OH PORT EXEMPT FAC REVENUE</title>
        <cusip>84355AAC6</cusip>
        <identifiers>
          <isin value="US84355AAC62"/>
        </identifiers>
        <balance>200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>147364.20000000</valUSD>
        <pctVal>0.311352020852</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>7.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Build NYC Resource Corp</name>
        <lei>549300GROJFKMNLWEK84</lei>
        <title>BUILD NYC RESOURCE CORP NY REVENUE</title>
        <cusip>12008ESL1</cusip>
        <identifiers>
          <isin value="US12008ESL10"/>
        </identifiers>
        <balance>245000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>227432.54000000</valUSD>
        <pctVal>0.480520919848</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2032-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>State of Connecticut</name>
        <lei>5493007GRO6CU0IKP741</lei>
        <title>CONNECTICUT ST</title>
        <cusip>20772KQA0</cusip>
        <identifiers>
          <isin value="US20772KQA06"/>
        </identifiers>
        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1089051.00000000</valUSD>
        <pctVal>2.300953892884</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-01-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>North Dakota Housing Finance Agency</name>
        <lei>549300DVQAGW0B16JX70</lei>
        <title>NORTH DAKOTA ST HSG FIN AGY</title>
        <cusip>658909M37</cusip>
        <identifiers>
          <isin value="US658909M371"/>
        </identifiers>
        <balance>225000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>221688.90000000</valUSD>
        <pctVal>0.468385720654</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2053-01-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>City of El Paso TX Water &amp; Sewer Revenue</name>
        <lei>N/A</lei>
        <title>EL PASO TX WTR &amp; SWR REVENUE</title>
        <cusip>283822WH3</cusip>
        <identifiers>
          <isin value="US283822WH37"/>
        </identifiers>
        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>1045786.00000000</valUSD>
        <pctVal>2.209543325174</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-03-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>California Community Choice Financing Authority</name>
        <lei>549300X8VKJ215S2R571</lei>
        <title>CALIFORNIA CMNTY CHOICE FING AUTH CLEAN ENERGY PROJ REVENUE</title>
        <cusip>13013JCM6</cusip>
        <identifiers>
          <isin value="US13013JCM62"/>
        </identifiers>
        <balance>585000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>605659.86000000</valUSD>
        <pctVal>1.279642011835</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2054-01-01</maturityDt>
          <couponKind>Floating</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>County of Miami-Dade FL Water &amp; Sewer System Revenue</name>
        <lei>N/A</lei>
        <title>MIAMI-DADE CNTY FL WTR &amp; SWR REVENUE</title>
        <cusip>59334DMR2</cusip>
        <identifiers>
          <isin value="US59334DMR25"/>
        </identifiers>
        <balance>1000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>933816.00000000</valUSD>
        <pctVal>1.972972395634</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Port of Portland OR Airport Revenue</name>
        <lei>N/A</lei>
        <title>PORT OF PORTLAND OR ARPT REVENUE</title>
        <cusip>7352403J0</cusip>
        <identifiers>
          <isin value="US7352403J08"/>
        </identifiers>
        <balance>410000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>440608.96000000</valUSD>
        <pctVal>0.930921418511</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Camden County Improvement Authority/The</name>
        <lei>549300UTQBT9ZE0QFB15</lei>
        <title>CAMDEN CNTY NJ IMPT AUTH SCH REVENUE</title>
        <cusip>13281PAB3</cusip>
        <identifiers>
          <isin value="US13281PAB31"/>
        </identifiers>
        <balance>115000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>117689.85000000</valUSD>
        <pctVal>0.248655865070</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-06-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>6.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>CSCDA Community Improvement Authority</name>
        <lei>N/A</lei>
        <title>CSCDA CMNTY IMPT AUTH CA ESSENTIAL HSG REVENUE</title>
        <cusip>126292AW1</cusip>
        <identifiers>
          <isin value="US126292AW10"/>
        </identifiers>
        <balance>350000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>224401.10000000</valUSD>
        <pctVal>0.474116074098</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2057-02-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>3.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>


      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>



    </explntrNotes>
    <signature>
      <ncom:dateSigned>2023-09-28</ncom:dateSigned>
      <ncom:nameOfApplicant>BlackRock Municipal Bond Fund, Inc.</ncom:nameOfApplicant>
      <ncom:signature>Chuck Pulsfort</ncom:signature>
      <ncom:signerName>Chuck Pulsfort</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
