<PAGE> PAGE 1
000 B000000 06/30/97
000 C000000 0000868055
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 PAINEWEBBER MUNICIPAL MONEY MARKET SERIES
001 B000000 811-6173
001 C000000 2127131074
002 A000000 1285 AVENUE OF THE AMERICAS
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10019
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 1
007 C010100 1
007 C020100 RMA NEW JERSEY MUNICIPAL MONEY FUND
007 C030100 N
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 A00AA01 PAINEWEBBER INC.
008 B00AA01 A
008 C00AA01 801-16267
008 D01AA01 NEW YORK
008 D02AA01 NY
008 D03AA01 10019
008 A00AA02 MITCHELL HUTCHINS ASSET MANAGEMENT
008 B00AA02 S
008 C00AA02 801-13219
008 D01AA02 NEW YORK
008 D02AA02 NY
008 D03AA02 10019
010 A00AA01 PAINEWEBBER INC.
010 B00AA01 801-16267
010 C01AA01 NEW YORK
010 C02AA01 NY
010 C03AA01 10019
<PAGE> PAGE 2
010 A00AA02 MITCHELL HUTCHINS ASSET MANAGEMENT
010 B00AA02 801-13219
010 C01AA02 NEW YORK
010 C02AA02 NY
010 C03AA02 10019
011 A00AA01 PAINEWEBBER INC.
011 B00AA01 8-16267
011 C01AA01 NEW YORK
011 C02AA01 NY
011 C03AA01 10019
012 A00AA01 PFPC, INC.
012 B00AA01 85-00000
012 C01AA01 WILMINGTON
012 C02AA01 DE
012 C03AA01 19809
013 A00AA01 ERNST & YOUNG, LLP
013 B01AA01 NEW YORK
013 B02AA01 NY
013 B03AA01 10019
014 A00AA01 PAINEWEBBER INC.
014 B00AA01 8-16267
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 64
019 C00AA00 PAINEWEBBE
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 SMITH BARNEY INC.
022 B000001 13-1912900
022 C000001 41249
022 D000001 36000
022 A000002 CITICORP SECURITIES MARKETS INC.
022 B000002 00-0000000
022 C000002 25900
022 D000002 27200
022 A000003 LEHMAN BROS INC.
022 B000003 13-2518466
022 C000003 41961
022 D000003 600
022 A000004 GOLDMAN SACHS
022 B000004 13-5108880
022 C000004 37480
<PAGE> PAGE 3
022 D000004 3000
022 A000005 MERRILL LYNCH PIERCE FENNER & SMITH
022 B000005 13-5674085
022 C000005 17500
022 D000005 6900
022 A000006 MORGAN STANLEY & CO.
022 B000006 13-2655998
022 C000006 9000
022 D000006 6900
022 A000007 NUVEEN (JOHN) & COMPANY
022 B000007 36-2639476
022 C000007 3300
022 D000007 3990
022 A000008 MORGAN, J.P. SECURITIES
022 B000008 13-3224016
022 C000008 4600
022 D000008 2100
022 A000009 FLEET NATIONAL BANK
022 B000009 00-0000000
022 C000009 3366
022 D000009 0
022 A000010 FIRST ALBANY CORP.
022 B000010 14-1391446
022 C000010 1988
022 D000010 0
023 C000000 193438
023 D000000 90770
024 00AA00 N
025 D00AA01 0
025 D00AA02 0
025 D00AA03 0
025 D00AA04 0
025 D00AA05 0
025 D00AA06 0
025 D00AA07 0
025 D00AA08 0
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 Y
027 000000 Y
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
030 C00AA00 0.00
031 A00AA00 0
<PAGE> PAGE 4
031 B00AA00 0
032 00AA00 0
033 00AA00 0
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 Y
045 00AA00 Y
046 00AA00 N
047 00AA00 Y
048 00AA00 0.500
048 A01AA00 0
048 A02AA00 0.000
048 B01AA00 0
048 B02AA00 0.000
048 C01AA00 0
048 C02AA00 0.000
048 D01AA00 0
048 D02AA00 0.000
048 E01AA00 0
048 E02AA00 0.000
048 F01AA00 0
048 F02AA00 0.000
048 G01AA00 0
048 G02AA00 0.000
048 H01AA00 0
048 H02AA00 0.000
048 I01AA00 0
048 I02AA00 0.000
048 J01AA00 0
048 J02AA00 0.000
048 K01AA00 0
048 K02AA00 0.000
049 00AA00 N
050 00AA00 N
051 00AA00 N
052 00AA00 N
053 A00AA00 N
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 N
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
<PAGE> PAGE 5
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 N
055 A00AA00 N
055 B00AA00 N
056 00AA00 N
057 00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 N
060 B00AA00 N
061 00AA00 1000
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
070 A01AA00 Y
070 A02AA00 N
070 B01AA00 N
070 B02AA00 N
070 C01AA00 N
070 C02AA00 N
070 D01AA00 N
070 D02AA00 N
070 E01AA00 N
070 E02AA00 N
070 F01AA00 N
070 F02AA00 N
070 G01AA00 N
070 G02AA00 N
070 H01AA00 N
070 H02AA00 N
070 I01AA00 N
070 I02AA00 N
070 J01AA00 Y
070 J02AA00 N
070 K01AA00 Y
070 K02AA00 N
070 L01AA00 Y
070 L02AA00 N
070 M01AA00 N
070 M02AA00 N
070 N01AA00 Y
070 N02AA00 N
070 O01AA00 Y
070 O02AA00 N
070 P01AA00 Y
<PAGE> PAGE 6
070 P02AA00 N
070 Q01AA00 N
070 Q02AA00 N
070 R01AA00 N
070 R02AA00 N
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 Y
077 Q020000 N
077 Q030000 N
078 000000 N
080 A00AA00 ICI MUTUAL INSURANCE CO.
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015 A000101 STATE STREET BANK
015 B000101 C
<PAGE> PAGE 7
015 C010101 NORTH QUINCY
015 C020101 MA
015 C030101 02171
015 E010101 X
028 A010100 52610
028 A020100 122
028 A030100 0
028 A040100 46108
028 B010100 20486
028 B020100 99
028 B030100 0
028 B040100 24018
028 C010100 25188
028 C020100 88
028 C030100 0
028 C040100 24675
028 D010100 18179
028 D020100 93
028 D030100 0
028 D040100 20147
028 E010100 17846
028 E020100 138
028 E030100 0
028 E040100 15269
028 F010100 23553
028 F020100 115
028 F030100 0
028 F040100 21874
028 G010100 157862
028 G020100 655
028 G030100 0
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028 H000100 0
042 A000100 0
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042 F000100 0
042 G000100 0
042 H000100 100
043 000100 58
044 000100 0
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 99.1
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
<PAGE> PAGE 8
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 46
063 B000100 0.0
064 A000100 Y
064 B000100 N
071 A000100 0
071 B000100 0
071 C000100 0
071 D000100 0
072 A000100 12
072 B000100 1647
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 240
072 G000100 0
072 H000100 0
072 I000100 11
072 J000100 7
072 K000100 0
072 L000100 26
072 M000100 12
072 N000100 5
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 18
072 S000100 7
072 T000100 57
072 U000100 0
072 V000100 0
072 W000100 4
072 X000100 387
072 Y000100 0
072 Z000100 1260
072AA000100 0
072BB000100 0
072CC010100 0
072CC020100 0
072DD010100 1260
072DD020100 0
072EE000100 0
<PAGE> PAGE 9
073 A010100 0.0262
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 84
074 B000100 0
074 C000100 51872
074 D000100 0
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 0
074 K000100 0
074 L000100 0
074 M000100 459
074 N000100 52415
074 O000100 0
074 P000100 0
074 Q000100 0
074 R010100 0
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074 R030100 0
074 R040100 91
074 S000100 0
074 T000100 52324
074 U010100 53328
074 U020100 0
074 V010100 1.00
074 V020100 0.00
074 W000100 0.9998
074 X000100 1204
074 Y000100 0
075 A000100 47963
075 B000100 0
076 000100 0.00
015 A000201 DELETE
028 A010200 0
028 A020200 0
028 A030200 0
028 A040200 0
028 B010200 0
028 B020200 0
028 B030200 0
028 B040200 0
028 C010200 0
028 C020200 0
028 C030200 0
028 C040200 0
028 D010200 0
<PAGE> PAGE 10
028 D020200 0
028 D030200 0
028 D040200 0
028 E010200 0
028 E020200 0
028 E030200 0
028 E040200 0
028 F010200 0
028 F020200 0
028 F030200 0
028 F040200 0
028 G010200 0
028 G020200 0
028 G030200 0
028 G040200 0
028 H000200 0
042 A000200 0
042 B000200 0
042 C000200 0
042 D000200 0
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
043 000200 0
044 000200 0
062 A000200 Y
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 0.0
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.0
062 M000200 0.0
062 N000200 0.0
062 O000200 0.0
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 0.0
072 I000200 0
072 J000200 0
072 K000200 0
072 L000200 0
072 M000200 0
<PAGE> PAGE 11
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 0
072 S000200 0
072 T000200 0
072 U000200 0
072 V000200 0
072 W000200 0
072 X000200 0
072 Y000200 0
072 Z000200 0
072AA000200 0
072BB000200 0
072CC010200 0
072CC020200 0
072DD010200 0
072DD020200 0
072EE000200 0
073 A010200 0.0000
073 A020200 0.0000
073 B000200 0.0000
073 C000200 0.0000
074 A000200 0
074 B000200 0
074 C000200 0
074 D000200 0
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 0
074 K000200 0
074 L000200 0
074 M000200 0
074 N000200 0
074 O000200 0
074 P000200 0
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074 R030200 0
074 R040200 0
074 S000200 0
074 T000200 0
074 U010200 0
074 U020200 0
074 V010200 0.00
074 V020200 0.00
<PAGE> PAGE 12
074 W000200 0.0000
074 X000200 0
074 Y000200 0
075 A000200 0
075 B000200 0
076 000200 0.00
015 A000301 DELETE
028 A010300 0
028 A020300 0
028 A030300 0
028 A040300 0
028 B010300 0
028 B020300 0
028 B030300 0
028 B040300 0
028 C010300 0
028 C020300 0
028 C030300 0
028 C040300 0
028 D010300 0
028 D020300 0
028 D030300 0
028 D040300 0
028 E010300 0
028 E020300 0
028 E030300 0
028 E040300 0
028 F010300 0
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028 F030300 0
028 F040300 0
028 G010300 0
028 G020300 0
028 G030300 0
028 G040300 0
028 H000300 0
042 A000300 0
042 B000300 0
042 C000300 0
042 D000300 0
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
043 000300 0
044 000300 0
SIGNATURE PAUL SCHUBERT
TITLE TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000868055
<NAME> PAINEWEBBER MUNICIPAL MONEY MARKET SERIES
<SERIES>
<NUMBER> 1
<NAME> RMA NEW JERSEY MUNICIPAL MONEY FUND
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUN-30-1997
<PERIOD-START> JUL-01-1996
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 51,872
<INVESTMENTS-AT-VALUE> 51,872
<RECEIVABLES> 454
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 89
<TOTAL-ASSETS> 52,415
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 91
<TOTAL-LIABILITIES> 91
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 52,328
<SHARES-COMMON-PRIOR> 42,237
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (26)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 52,324
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,647
<OTHER-INCOME> 0
<EXPENSES-NET> (387)
<NET-INVESTMENT-INCOME> 1,260
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 1,260
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 1,260
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 270,073
<NUMBER-OF-SHARES-REDEEMED> (261,186)
<SHARES-REINVESTED> 1,204
<NET-CHANGE-IN-ASSETS> 10,091
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 240
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,260
<AVERAGE-NET-ASSETS> 47,963
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.026
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (0.026)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.81
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
Report to Independent Auditors
To the Shareholders and Board of Trustees of
PaineWebber Municipal Money Market Series
In planning and performing our audit of the financial statements of Paine
Webber Municipal Money Market Series (consisting of PaineWebber RMA New
Jersey Municipal Money Fund) for the year ended June 30, 1997, we considered
its internal control, including control activities for safeguarding
securities, in order to determine our auditing procedures for the purpose of
expressing our opinion on the financial statements and to comply with the
requirements of Form N-SAR, not to provide assurance on the internal control.
The management of PaineWebber Municipal Money Market Series is responsible
for establishing and maintaining internal control. In fulfilling this
responsibility, estimates and judgments by management are required to assess
the expected benefits and related costs of controls. Generally, controls
that are relevant to an audit pertain to the entity's objective of preparing
financial statements for external purposes that are fairly presented in
conformity with generally accepted accounting principles. Those controls
include the safeguarding of assets against unauthorized acquisition, use or
disposition.
Because of inherent limitations in internal control, errors or irregularities
may occur and not be detected. Also, projection of any evaluation of internal
control to future periods is subject to the risk that it may become inadequate
because of changes in conditions or that the effectiveness of the design and
operation may deteriorate.
Our consideration of the internal control would not necessarily disclose all
matters in the internal control that might be material weaknesses under
standards established by the American Institute of Certified Public
Accountants. A material weakness is a condition in which the design or
operation of one or more of the internal control components does not reduce
to a relatively low level the risk that errors or irregularities in amounts
that would be material in relation to the financial statements being audited
may occur and not be detected within a timely period by employees in the
normal course of performing their assigned functions. However, we noted no
matters involving the internal control and its operation, including controls
for safeguarding securities, that we consider to be material weaknesses as
defined above at June 30, 1997.
This report is intended solely for the information and use of the board of
trustees and management of PaineWebber Municipal Money Market Series and the
Securities and Exchange Commission.
ERNST & YOUNG LLP
New York, New York
August 18, 1997
