CMTXX Cma Treasury Fund (MM)

000 A000000 09/30/2009
000 C000000 0000869311
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 CMA TREASURY FUND
001 B000000 811-06196
001 C000000 8004417762
002 A000000 100 BELLEVUE PARKWAY
002 B000000 WILMINGTON
002 C000000 DE
002 D010000 19809
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
010 A000001 BLACKROCK ADVISORS, LLC
010 B000001 801-47710
010 C010001 WILMINGTON
010 C020001 DE
010 C030001 19809
011 A000001 BLACKROCK INVESTMENTS, LLC
011 B000001 8-48436
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10022
012 A000001 FINANCIAL DATA SERVICES, INC.
012 B000001 84-01339
012 C010001 JACKSONVILLE
012 C020001 FL
012 C030001 32246
012 C040001 6484
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 PRINCETON
013 B020001 NJ

013 B030001 08540
014 A000001 BB & T AM DISTRIBUTORS, INC.
014 B000001 8-52396
014 A000002 BLACKROCK CAPITAL MARKETS, LLC
014 B000002 8-67827
014 A000003 BLACKROCK DISTRIBUTORS, INC.
014 B000003 8-048775
014 A000004 BLACKROCK INVESTMENTS, LLC
014 B000004 8-048436
014 A000005 HARRIS WILLIAMS LLC
014 B000005 8-53380
014 A000006 MGI FUNDS DISTRIBUTOR, INC.
014 B000006 8-046960
014 A000007 NATCITY INVESTMENTS, INC.
014 B000007 8-35288
014 A000008 NORTHERN FUNDS DISTRIBUTORS, LLC
014 B000008 8-051242
014 A000009 PNC CAPITAL MARKETS, INC.
014 B000009 8-32493
014 A000010 PNC INVESTMENTS LLC
014 B000010 8-066195
014 A000011 PFPC DISTRIBUTORS, INC.
014 B000011 8-045467
014 A000012 RED CAPITAL MARKETS, INC.
014 B000012 8-31175
018 000000 Y
019 A000000 Y
019 B000000 294
019 C000000 BLKRKADVSR
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 BLACKROCK INVESTMENTS, LLC
022 B000001 13-3806694
022 C000001 3437371
022 D000001 5794146
022 C000002 0
022 D000002 0
022 C000003 0
022 D000003 0
022 C000004 0
022 D000004 0
022 C000005 0

022 D000005 0
022 C000006 0
022 D000006 0
022 C000007 0
022 D000007 0
022 C000008 0
022 D000008 0
022 C000009 0
022 D000009 0
022 C000010 0
022 D000010 0
023 C000000 3437371
023 D000000 5794146
024 000000 N
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 N
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
028 A010000 944283
028 A020000 122
028 A030000 0
028 A040000 1538413
028 B010000 695981
028 B020000 94
028 B030000 0
028 B040000 1328624
028 C010000 470475
028 C020000 92
028 C030000 0
028 C040000 807625
028 D010000 614119
028 D020000 79
028 D030000 0
028 D040000 1026532
028 E010000 352434
028 E020000 66
028 E030000 0
028 E040000 589357
028 F010000 359572
028 F020000 54
028 F030000 0
028 F040000 503595
028 G010000 3436864
028 G020000 507
028 G030000 0

028 G040000 5794146
028 H000000 0
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034 000000 N
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036 B000000 0
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039 000000 N
040 000000 Y
041 000000 Y
042 A000000 0
042 B000000 0
042 C000000 100
042 D000000 0
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042 G000000 0
042 H000000 0
043 000000 1748
044 000000 0
045 000000 N
048 000000 0.000
048 A010000 0
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048 C010000 0
048 C020000 0.000
048 D010000 0
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048 E010000 0
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048 F010000 0
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048 G010000 0
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048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 0
048 K020000 0.000
055 A000000 N
055 B000000 N
056 000000 Y

057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 0
062 A000000 N
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
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062 F000000 0.0
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062 H000000 0.0
062 I000000 0.0
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062 K000000 0.0
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062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
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062 R000000 0.0
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 N
070 A020000 N
070 B010000 N
070 B020000 N
070 C010000 N
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 N
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 N
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 N
070 J020000 N
070 K010000 Y
070 K020000 Y

070 L010000 N
070 L020000 N
070 M010000 N
070 M020000 N
070 N010000 N
070 N020000 N
070 O010000 N
070 O020000 N
070 P010000 N
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 0
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072 A000000 6
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072 S000000 7
072 T000000 1748
072 U000000 0
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072 W000000 119
072 X000000 5566
072 Y000000 4494
072 Z000000 496
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072EE000000 10

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074 J000000 0
074 K000000 0
074 L000000 1
074 M000000 18
074 N000000 1878763
074 O000000 0
074 P000000 21
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 64
074 S000000 0
074 T000000 1878678
074 U010000 1878200
074 U020000 0
074 V010000 1.00
074 V020000 0.00
074 W000000 1.0005
074 X000000 12734
074 Y000000 0
075 A000000 2804399
075 B000000 0
076 000000 0.00
077 A000000 Y
077 Q010000 Y
078 000000 N
SIGNATURE NEAL J. ANDREWS
TITLE CFO