MERRILL LYNCH CALIFORNIA BOND FUND OF ML CALIF MUN SERIES TR
NSAR-B, 1994-10-27
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<PAGE>      PAGE  1
000 B000000 08/31/94
000 C000000 0000765199
000 D000000 N
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000 F000000 Y
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000 J000000 A
001 A000000 ML CALIFORNIA MUNICIPAL SERIES TRUST
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001 C000000 6092823355
002 A000000 P.O. BOX 9066
002 B000000 PRINCETON
002 C000000 NJ
002 D010000 08543
002 D020000 9066
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007 C010200  2
007 C020200 ML CALIFORNIA INSURED MUNICIPAL BOND FUND
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007 C010600  6
007 C010700  7
007 C010800  8
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008 D01AA01 PRINCETON
008 D02AA01 NJ
008 D03AA01 08543
008 D04AA01 9011
011 A00AA01 MERRILL LYNCH FUNDS DISTRIBUTOR, INC.
011 B00AA01 8-14663
011 C01AA01 PRINCETON
011 C02AA01 NJ
011 C03AA01 08543
011 C04AA01 9011
012 A00AA01 FINANCIAL DATA SERVICES, INC.
<PAGE>      PAGE  2
012 B00AA01 84-01339
012 C01AA01 JACKSONVILLE
012 C02AA01 FL
012 C03AA01 32246
012 C04AA01 6484
013 A00AA01 DELOITTE & TOUCHE
013 B01AA01 PRINCETON
013 B02AA01 NJ
013 B03AA01 08540
014 A00AA01 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
014 B00AA01 8-7221
015 A00AA01 THE BANK OF NEW YORK
015 B00AA01 C
015 C01AA01 NEW YORK
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022 A000002 PAINEWEBBER INCORPORATED
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022 C000002    121972
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022 A000003 LEHMAN BROTHERS INC.
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022 C000005     88120
<PAGE>      PAGE  3
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022 A000006 JOHN HANCOCK CLEARING CORPORATION
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022 C000007     48249
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022 A000008 RAGEN MACKENZIE INCORPORATED
022 B000008 91-1374280
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022 D000008     52439
022 A000009 OPPENHEIMER & CO., INC.
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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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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<PAGE>      PAGE  12
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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> 1
   <NAME> MERRILL LYNCH CALIFORNIA MUNICIPAL BOND FUND
       
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<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
       
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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> 2
   <NAME> MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL BOND FUND
       
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<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>
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</TABLE>


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