<PAGE> PAGE 1
000 A000000 05/31/2000
000 C000000 0000869663
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 MERRILL LYNCH U.S. TREASURY MONEY FUND
001 B000000 811-6211
001 C000000 6092822800
002 A000000 P.O. BOX 9011
002 B000000 PRINCETON
002 C000000 NJ
002 D010000 08543
002 D020000 9011
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
008 A000001 MERRILL LYNCH ASSET MANAGEMENT, L.P.
008 B000001 A
008 C000001 801-11583
008 D010001 PRINCETON
008 D020001 NJ
008 D030001 08543
008 D040001 9011
011 A000001 MERRILL LYNCH FUNDS DISTRIBUTOR, INC.
011 B000001 8-14663
011 C010001 PRINCETON
011 C020001 NJ
011 C030001 08543
011 C040001 9011
012 A000001 FINANCIAL DATA SERVICES, INC.
012 B000001 84-01339
012 C010001 JACKSONVILLE
012 C020001 FL
012 C030001 32246
<PAGE> PAGE 2
012 C040001 6484
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 PRINCETON
013 B020001 NJ
013 B030001 08540
014 A000001 MLPF&S AND OTHER ML BROKER/DEALER AFFILIATES
014 B000001 8-7221
015 A000001 THE BANK OF NEW YORK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
015 A000002 BANKERS TRUST COMPANY
015 B000002 S
015 C010002 NEW YORK
015 C020002 NY
015 C030002 10006
015 E010002 X
015 A000003 THE CHASE MANHATTAN BANK
015 B000003 S
015 C010003 NEW YORK
015 C020003 NY
015 C030003 10017
015 E010003 X
015 A000004 CUSTODIAL TRUST CO.
015 B000004 S
015 C010004 NEW YORK
015 C020004 NY
015 C030004 10167
015 E010004 X
015 A000005 MORGAN GUARANTY TRUST CO. OF NEW YORK
015 B000005 S
015 C010005 NEW YORK
015 C020005 NY
015 C030005 10260
015 E010005 X
018 000000 Y
019 A000000 Y
019 B000000 226
019 C000000 MERRILLLYN
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
<PAGE> PAGE 3
021 000000 0
022 A000001 DB ALEX. BROWN LLC
022 B000001 13-3311934
022 C000001 37182
022 D000001 41459
022 A000002 HSBC SECURITIES (USA) INC.
022 B000002 13-2650272
022 C000002 22083
022 D000002 19286
022 A000003 MORGAN (J.P.) SECURITIES INC.
022 B000003 13-3224016
022 C000003 22628
022 D000003 12080
022 A000004 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
022 B000004 13-2741729
022 C000004 22189
022 D000004 4592
022 A000005 LANSTON (AUBREY G.) & CO. INC.
022 B000005 13-5552129
022 C000005 14324
022 D000005 9353
022 A000006 PAINEWEBBER INCORPORATED
022 B000006 13-2638166
022 C000006 8210
022 D000006 10249
022 A000007 BZW SECURITIES INC.
022 C000007 6860
022 D000007 10071
022 A000008 MORGAN STANLEY DEAN WITTER & CO.
022 B000008 13-2655998
022 C000008 9312
022 D000008 4614
022 A000009 GOLDMAN, SACHS & CO.
022 B000009 13-5108880
022 C000009 7336
022 D000009 4365
022 A000010 CREDIT SUISSE FIRST BOSTON CORPORATION
022 B000010 13-5659485
022 C000010 5023
022 D000010 6469
023 C000000 172752
023 D000000 133523
024 000000 N
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
<PAGE> PAGE 4
026 H000000 N
027 000000 Y
028 A010000 73565
028 A020000 205
028 A030000 0
028 A040000 10565
028 B010000 16342
028 B020000 255
028 B030000 0
028 B040000 68638
028 C010000 2086
028 C020000 179
028 C030000 0
028 C040000 10959
028 D010000 2202
028 D020000 167
028 D030000 0
028 D040000 6301
028 E010000 1775
028 E020000 134
028 E030000 0
028 E040000 8059
028 F010000 2606
028 F020000 147
028 F030000 0
028 F040000 3774
028 G010000 98576
028 G020000 1087
028 G030000 0
028 G040000 108296
028 H000000 0
029 000000 N
030 A000000 0
030 B000000 0.00
030 C000000 0.00
034 000000 N
035 000000 0
036 B000000 0
037 000000 N
038 000000 0
039 000000 N
040 000000 Y
041 000000 Y
042 A000000 0
042 B000000 0
042 C000000 100
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
<PAGE> PAGE 5
043 000000 25
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.500
048 A010000 0
048 A020000 0.000
048 B010000 0
048 B020000 0.000
048 C010000 0
048 C020000 0.000
048 D010000 0
048 D020000 0.000
048 E010000 0
048 E020000 0.000
048 F010000 0
048 F020000 0.000
048 G010000 0
048 G020000 0.000
048 H010000 0
048 H020000 0.000
048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 0
048 K020000 0.000
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 Y
053 B000000 Y
053 C000000 N
054 A000000 Y
054 B000000 Y
054 C000000 N
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
055 A000000 N
055 B000000 N
<PAGE> PAGE 6
056 000000 Y
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 1
062 A000000 Y
062 B000000 105.8
062 C000000 0.0
062 D000000 0.0
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 63
063 B000000 0.0
064 A000000 N
064 B000000 N
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
<PAGE> PAGE 7
070 I020000 N
070 J010000 N
070 J020000 N
070 K010000 N
070 K020000 N
070 L010000 N
070 L020000 N
070 M010000 N
070 M020000 N
070 N010000 N
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 0
071 B000000 0
071 C000000 0
071 D000000 0
072 A000000 6
072 B000000 1314
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 120
072 G000000 28
072 H000000 0
072 I000000 13
072 J000000 4
072 K000000 0
072 L000000 15
072 M000000 36
072 N000000 23
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 16
072 S000000 28
072 T000000 25
072 U000000 0
072 V000000 0
072 W000000 2
072 X000000 310
072 Y000000 84
072 Z000000 1088
072AA000000 8
072BB000000 5
<PAGE> PAGE 8
072CC010000 19
072CC020000 0
072DD010000 1088
072DD020000 0
072EE000000 3
073 A010000 0.0227
073 A020000 0.0000
073 B000000 0.0001
073 C000000 0.0000
074 A000000 4
074 B000000 0
074 C000000 35582
074 D000000 0
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 0
074 K000000 0
074 L000000 53
074 M000000 55
074 N000000 35694
074 O000000 1971
074 P000000 21
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 75
074 S000000 0
074 T000000 33627
074 U010000 33620
074 U020000 0
074 V010000 1.00
074 V020000 0.00
074 W000000 1.0002
074 X000000 1683
074 Y000000 0
075 A000000 47843
075 B000000 0
076 000000 0.00
077 A000000 Y
077 P000000 Y
078 000000 N
SIGNATURE DONALD C. BURKE
TITLE TREASURER
