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      <invstOrSec>
        <name>Sales Tax Securitization Corp.</name>
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      <invstOrSec>
        <name>Metropolitan Transportation Authority</name>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2021-07-01</maturityDt>
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          <annualizedRt>5.25000000</annualizedRt>
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        <name>Maryland Stadium Authority</name>
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      <invstOrSec>
        <name>County of Frederick MD</name>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Indiana Finance Authority</name>
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          <maturityDt>2040-07-01</maturityDt>
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      <invstOrSec>
        <name>Maryland Economic Development Corp.</name>
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          <isin value="US57420VJP94"/>
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          <maturityDt>2030-06-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Guam Government Waterworks Authority</name>
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        <invCountry>GU</invCountry>

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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2035-07-01</maturityDt>
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        <name>New Jersey Transportation Trust Fund Authority</name>
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          <maturityDt>2050-06-15</maturityDt>
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        <name>County of Baltimore MD</name>
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        <name>Iowa Student Loan Liquidity Corp.</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <name>Maryland Economic Development Corp.</name>
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        <name>New Jersey Transportation Trust Fund Authority</name>
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      <invstOrSec>
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        <name>Maryland Industrial Development Financing Authority</name>
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          <maturityDt>2035-07-01</maturityDt>
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        <name>Maryland Economic Development Corp.</name>
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          <annualizedRt>5.25000000</annualizedRt>
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        <name>Maryland Community Development Administration</name>
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          <isin value="US57419R5L58"/>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2039-09-01</maturityDt>
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          <annualizedRt>3.75000000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Sales Tax Financing Corp.</name>
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          <isin value="US74529JPV16"/>
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        <valUSD>23050.02000000</valUSD>
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        <invCountry>PR</invCountry>

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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2040-07-01</maturityDt>
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        <name>Reading School District</name>
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        <invCountry>US</invCountry>
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          <maturityDt>2036-03-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Tennessee Energy Acquisition Corp.</name>
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          <maturityDt>2022-09-01</maturityDt>
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        <name>Puerto Rico Electric Power Authority</name>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2037-07-01</maturityDt>
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        <name>Puerto Rico Electric Power Authority</name>
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        <name>Buckeye Tobacco Settlement Financing Authority</name>
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        <name>Puerto Rico Electric Power Authority</name>
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        <name>Tuscaloosa County Industrial Development Authority</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <name>County of Baltimore MD</name>
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        <name>Sales Tax Securitization Corp.</name>
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        <name>Maryland Community Development Administration Local Government Infrastructure</name>
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        <name>Michigan Finance Authority</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <name>Guam Government Waterworks Authority</name>
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        <name>New Jersey Transportation Trust Fund Authority</name>
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        <name>City of Rockville MD</name>
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        <name>Central Plains Energy Project</name>
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        <name>Maryland Health &amp; Higher Educational Facilities Authority</name>
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        <name>Maryland Health &amp; Higher Educational Facilities Authority</name>
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        <name>Puerto Rico Highway &amp; Transportation Authority</name>
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        <name>Puerto Rico Industrial Tourist Educational Medical &amp; Environmental Control Facilities Financing Authority</name>
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        <name>Chattanooga Health Educational &amp; Housing Facility Board</name>
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          <maturityDt>2042-01-01</maturityDt>
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          <isCashCollateral>N</isCashCollateral>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
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          <isin value="US74529JQC26"/>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2027-07-01</maturityDt>
          <couponKind>None</couponKind>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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          <isin value="US74529JQF56"/>
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        <fairValLevel>2</fairValLevel>
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        <name>Puerto Rico Electric Power Authority</name>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
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      <invstOrSec>
        <name>Puerto Rico Industrial Tourist Educational Medical &amp; Environmental Control Facilities Financing Authority</name>
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        <valUSD>29595.60000000</valUSD>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2032-04-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.12500000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
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          <isin value="US74529JRH04"/>
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        <curCd>USD</curCd>
        <valUSD>261157.24000000</valUSD>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2040-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.32900000</annualizedRt>
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      <invstOrSec>
        <name>Guam Government Waterworks Authority</name>
        <lei>N/A</lei>
        <title>Guam Government Waterworks Authority</title>
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          <isin value="US40065FCH55"/>
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        <curCd>USD</curCd>
        <valUSD>120040.20000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>GU</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2046-01-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>County of Frederick MD</name>
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          <isin value="US35571LCD82"/>
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        <curCd>USD</curCd>
        <valUSD>217480.20000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
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      <invstOrSec>
        <name>District of Columbia</name>
        <lei>549300HWFOZXPKGOX654</lei>
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          <isin value="US25483VUV43"/>
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        <curCd>USD</curCd>
        <valUSD>268817.50000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2039-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Maryland Health &amp; Higher Educational Facilities Authority</name>
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          <isin value="US574218M428"/>
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        <curCd>USD</curCd>
        <valUSD>561830.00000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2045-01-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Highway &amp; Transportation Authority</name>
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          <isin value="US745190ZN12"/>
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        <balance>360000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>395827.20000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2031-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
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          <isin value="US74526QV338"/>
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        <balance>40000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>32300.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
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          <isin value="US74529JPX71"/>
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        <balance>797000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>888176.80000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2058-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Maryland Health &amp; Higher Educational Facilities Authority</name>
        <lei>N/A</lei>
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          <isin value="US574218RT26"/>
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        <valUSD>573950.00000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
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          <isin value="US74526QR203"/>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2027-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Montgomery County Housing Opportunities Commission</name>
        <lei>549300HDL0LLRHMDL092</lei>
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          <isin value="US613347LE11"/>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <annualizedRt>3.10000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>N/A</name>
        <lei>N/A</lei>
        <title>U.S. Treasury Long Bond</title>
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          <other otherDesc="Inhouse Sedol" value="USH1COS"/>
          <other otherDesc="Future Ticker" value="USH1 Comdty"/>
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        <balance>-8.00000000</balance>
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        <name>County of Howard MD</name>
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        <name>Washington Metropolitan Area Transit Authority</name>
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        <name>County of Prince George's MD</name>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
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          <isin value="US74526QK844"/>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2021-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>County of Montgomery MD</name>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2026-11-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Tennessee Energy Acquisition Corp.</name>
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        <title>Tennessee Energy Acquisition Corp.</title>
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          <isin value="US880443DZ63"/>
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        <curCd>USD</curCd>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2021-02-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Michigan Finance Authority</name>
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        <title>Michigan Finance Authority</title>
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          <isin value="US59447PH204"/>
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        <curCd>USD</curCd>
        <valUSD>33955.20000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2036-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Washington Metropolitan Area Transit Authority</name>
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          <isin value="US938782GN36"/>
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        <balance>440000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>540328.80000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2038-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Industrial Tourist Educational Medical &amp; Environmental Control Facilities Financing Authority</name>
        <lei>N/A</lei>
        <title>Puerto Rico Industrial Tourist Educational Medical &amp; Environmental Control Facilities Financing Authority</title>
        <cusip>745272FA7</cusip>
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          <isin value="US745272FA79"/>
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        <curCd>USD</curCd>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2042-04-01</maturityDt>
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          <annualizedRt>5.37500000</annualizedRt>
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      <invstOrSec>
        <name>County of Prince George's MD</name>
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          <isin value="US7417016L53"/>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2033-07-15</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Maryland Health &amp; Higher Educational Facilities Authority</name>
        <lei>N/A</lei>
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          <isin value="US5742185T61"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1244800.00000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-10-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Toll Road Investors Partnership II LP</name>
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        <balance>400000.00000000</balance>
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        <assetCat>DBT</assetCat>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-02-15</maturityDt>
          <couponKind>None</couponKind>
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        <name>Puerto Rico Convention Center District Authority</name>
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        <invCountry>PR</invCountry>

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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2031-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Mississippi Development Bank</name>
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        <name>Connecticut Housing Finance Authority</name>
        <lei>5493003DXX0NRJKSH186</lei>
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          <maturityDt>2047-11-15</maturityDt>
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        <name>Metropolitan Transportation Authority</name>
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        <name>Maryland Health &amp; Higher Educational Facilities Authority</name>
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        <name>Sales Tax Securitization Corp.</name>
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        <name>Montgomery County Housing Opportunities Commission</name>
        <lei>549300HDL0LLRHMDL092</lei>
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        <name>Maryland Community Development Administration Local Government Infrastructure</name>
        <lei>N/A</lei>
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        <assetCat>DBT</assetCat>
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        <name>Railsplitter Tobacco Settlement Authority</name>
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        <name>Maryland Community Development Administration</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1009140.00000000</valUSD>
        <pctVal>0.898496773389</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2021-04-01</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>City of Baltimore MD</name>
        <lei>N/A</lei>
        <title>City of Baltimore</title>
        <cusip>05922KJ83</cusip>
        <identifiers>
          <isin value="US05922KJ836"/>
        </identifiers>
        <balance>305000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>413540.35000000</valUSD>
        <pctVal>0.368199328280</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2033-07-01</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>Chattanooga Health Educational &amp; Housing Facility Board</name>
        <lei>N/A</lei>
        <title>Chattanooga Health Educational &amp; Housing Facility Board</title>
        <cusip>162410FF6</cusip>
        <identifiers>
          <isin value="US162410FF67"/>
        </identifiers>
        <balance>5000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6067.60000000</valUSD>
        <pctVal>0.005402341619</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-08-01</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>Maryland Health &amp; Higher Educational Facilities Authority</name>
        <lei>N/A</lei>
        <title>Maryland Health &amp; Higher Educational Facilities Authority</title>
        <cusip>5742182G7</cusip>
        <identifiers>
          <isin value="US5742182G77"/>
        </identifiers>
        <balance>500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>586900.00000000</valUSD>
        <pctVal>0.522551634364</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-07-01</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>Howard County Housing Commission</name>
        <lei>5493007CCS6UI1IIE878</lei>
        <title>Howard County Housing Commission</title>
        <cusip>442577BG6</cusip>
        <identifiers>
          <isin value="US442577BG65"/>
        </identifiers>
        <balance>500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>542675.00000000</valUSD>
        <pctVal>0.483175512316</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-06-01</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>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
        <cusip>74526QX49</cusip>
        <identifiers>
          <isin value="US74526QX490"/>
        </identifiers>
        <balance>60000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>47700.00000000</valUSD>
        <pctVal>0.042470119201</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
          <isDefault>Y</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>City of Baltimore MD</name>
        <lei>N/A</lei>
        <title>City of Baltimore</title>
        <cusip>05923TCY3</cusip>
        <identifiers>
          <isin value="US05923TCY38"/>
        </identifiers>
        <balance>300000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>300195.00000000</valUSD>
        <pctVal>0.267281287916</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>Y</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>3.87500000</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>Montgomery County Revenue Authority</name>
        <lei>549300JQFJ2YGGW7AW57</lei>
        <title>Montgomery County Revenue Authority</title>
        <cusip>61336RBV8</cusip>
        <identifiers>
          <isin value="US61336RBV87"/>
        </identifiers>
        <balance>415000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>477108.90000000</valUSD>
        <pctVal>0.424798152095</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2036-11-01</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 Jersey Economic Development Authority</name>
        <lei>5493006JS6QWDVU4R678</lei>
        <title>New Jersey Economic Development Authority</title>
        <cusip>64577BSZ8</cusip>
        <identifiers>
          <isin value="US64577BSZ84"/>
        </identifiers>
        <balance>100000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>119745.00000000</valUSD>
        <pctVal>0.106616025655</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2026-06-15</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>Texas Municipal Gas Acquisition &amp; Supply Corp. III</name>
        <lei>0UDITKOYW0YKG3BBP242</lei>
        <title>Texas Municipal Gas Acquisition &amp; Supply Corp. III</title>
        <cusip>88256HAT5</cusip>
        <identifiers>
          <isin value="US88256HAT59"/>
        </identifiers>
        <balance>55000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>58865.40000000</valUSD>
        <pctVal>0.052411332386</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2031-12-15</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>Maryland Health &amp; Higher Educational Facilities Authority</name>
        <lei>N/A</lei>
        <title>Maryland Health &amp; Higher Educational Facilities Authority</title>
        <cusip>5742188D8</cusip>
        <identifiers>
          <isin value="US5742188D82"/>
        </identifiers>
        <balance>500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>650725.00000000</valUSD>
        <pctVal>0.579378790716</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2035-07-01</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>California Municipal Finance Authority</name>
        <lei>5493000UQOV6R4ZWS346</lei>
        <title>California Municipal Finance Authority</title>
        <cusip>13049YCT6</cusip>
        <identifiers>
          <isin value="US13049YCT64"/>
        </identifiers>
        <balance>660000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>785980.80000000</valUSD>
        <pctVal>0.699804995091</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-05-15</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>County of Frederick MD</name>
        <lei>N/A</lei>
        <title>County of Frederick</title>
        <cusip>355612AE2</cusip>
        <identifiers>
          <isin value="US355612AE28"/>
        </identifiers>
        <balance>250000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>267852.50000000</valUSD>
        <pctVal>0.238484855415</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>Y</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.62500000</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>Buckeye Tobacco Settlement Financing Authority</name>
        <lei>N/A</lei>
        <title>Buckeye Tobacco Settlement Financing Authority</title>
        <cusip>118217DA3</cusip>
        <identifiers>
          <isin value="US118217DA38"/>
        </identifiers>
        <balance>1400000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>213136.00000000</valUSD>
        <pctVal>0.189767533041</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2057-06-01</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</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="All applicable monthly total returns are reported excluding any sales loads or redemption fees for Item B.5." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2021-02-01</ncom:dateSigned>
      <ncom:nameOfApplicant>MFS Municipal Series Trust</ncom:nameOfApplicant>
      <ncom:signature>Kasey Phillips</ncom:signature>
      <ncom:signerName>Kasey Phillips</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
