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<PAGE> PAGE 17
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<PAGE> PAGE 21
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<PAGE> PAGE 22
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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<PAGE> PAGE 25
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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<PAGE> PAGE 28
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<PAGE> PAGE 29
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<PAGE> PAGE 30
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<PAGE> PAGE 31
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<PAGE> PAGE 32
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<PAGE> PAGE 33
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<PAGE> PAGE 34
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<PAGE> PAGE 35
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<PAGE> PAGE 36
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<PAGE> PAGE 37
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<PAGE> PAGE 38
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<PAGE> PAGE 39
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SIGNATURE DONALD C. BURKE
TITLE TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000810598
<NAME> CMA MULTI-STATE MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 040
<NAME> CMA CALIFORNIA MUNICIPAL MONEY FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> APR-01-1999
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 1980241284
<INVESTMENTS-AT-VALUE> 1980241284
<RECEIVABLES> 16043188
<ASSETS-OTHER> 5384214
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2001668686
<PAYABLE-FOR-SECURITIES> 15025011
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 837915
<TOTAL-LIABILITIES> 15862926
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1986490944
<SHARES-COMMON-STOCK> 1986492603
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