MERRILL LYNCH CALIFORNIA BOND FUND OF ML CALIF MUN SERIES TR
NSAR-B, 1995-10-27
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<PAGE>      PAGE  2
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
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<PAGE>      PAGE  11
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SIGNATURE   GERALD M. RICHARD                            
TITLE       TREASURER           
 

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
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   <NUMBER> 2
   <NAME> MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL BOND FUND
       
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</TABLE>

<TABLE> <S> <C>

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<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
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   <NAME> MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL BOND FUND
       
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
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   <NAME> MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL BOND FUND
       
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
<SERIES>
   <NUMBER> 2
   <NAME> MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   OTHER
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
<SERIES>
   <NUMBER> 1
   <NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
<SERIES>
   <NUMBER> 1
   <NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL BOND FUND
       
<S>                             <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
<SERIES>
   <NUMBER> 1
   <NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL BOND FUND
       
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000765199
<NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
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   <NUMBER> 1
   <NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL BOND FUND
       
<S>                             <C>
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</TABLE>


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