PAGE 1
000 B000000 10/31/2002
000 C000000 0000896061
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 NUVEEN PREMIUM INCOME MUNI FUND 4, INC.
001 B000000 811-7432
001 C000000 3129178200
002 A000000 333 WEST WACKER DRIVE
002 B000000 CHICAGO
002 C000000 IL
002 D010000 60606
002 D020000 1286
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 NUVEEN ADVISORY CORP
008 B000001 A
008 C000001 801-12353
008 D010001 CHICAGO
008 D020001 IL
008 D030001 60606
008 D040001 1286
011 A000001 DELETE
011 A000002 DELETE
011 A000003 DELETE
011 A000004 DELETE
011 A000005 DELETE
011 A000006 DELETE
011 A000007 DELETE
011 A000008 DELETE
011 A000009 DELETE
012 A000001 EQUISERVE INC.
012 B000001 84-05925
PAGE 2
012 C010001 BOSTON
012 C020001 MA
012 C030001 02940
013 A000001 ERNST & YOUNG
013 B010001 CHICAGO
013 B020001 IL
013 B030001 60611
014 A000001 NUVEEN INVESTMENTS
014 B000001 8-13464
015 A000001 STATE STREET BANK AND TRUST COMPANY
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02206
015 E010001 X
015 A000002 DELETE
015 A000003 DELETE
015 A000004 DELETE
018 000000 Y
019 A000000 Y
019 B000000 134
019 C000000 NUVEENFUND
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 GOLDMAN SACHS
022 B000001 13-5108880
022 C000001 38230
022 D000001 8000
022 A000002 SALOMON SMITH BARNEY
022 B000002 13-1912900
022 C000002 38545
022 D000002 6000
022 A000003 JPMORGAN
022 B000003 13-3224016
022 C000003 18100
022 D000003 19100
022 A000004 PAINE WEBBER
022 B000004 13-2638166
022 C000004 18884
022 D000004 0
022 A000005 PIPER JAFFRAY
022 B000005 41-0953246
PAGE 3
022 C000005 7000
022 D000005 6900
022 A000006 STATE STREET BANK
022 B000006 04-1867445
022 C000006 0
022 D000006 12000
022 A000007 WILLIAM BLAIR
022 B000007 36-2214610
022 C000007 10545
022 D000007 0
022 A000008 NEWMAN & ASSOCIATES
022 B000008 84-0775574
022 C000008 0
022 D000008 9869
022 A000009 SIEBERT
022 B000009 13-2639174
022 C000009 8302
022 D000009 0
022 A000010 MERRILL LYNCH
022 B000010 13-5674085
022 C000010 7355
022 D000010 0
023 C000000 202895
023 D000000 200893
024 000000 N
025 D000001 0
025 D000002 0
025 D000003 0
025 D000004 0
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 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 N
027 000000 N
028 A010000 0
028 A020000 0
028 A030000 0
028 A040000 0
028 B010000 0
028 B020000 0
028 B030000 0
028 B040000 0
PAGE 4
028 C010000 0
028 C020000 0
028 C030000 0
028 C040000 0
028 D010000 0
028 D020000 0
028 D030000 0
028 D040000 0
028 E010000 0
028 E020000 0
028 E030000 0
028 E040000 0
028 F010000 0
028 F020000 0
028 F030000 0
028 F040000 0
028 G010000 0
028 G020000 0
028 G030000 0
028 G040000 0
028 H000000 0
030 A000000 0
030 B000000 0.00
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
035 000000 0
036 B000000 0
038 000000 0
042 A000000 0
042 B000000 0
042 C000000 0
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 0
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.000
048 A010000 125000
048 A020000 0.650
048 B010000 125000
048 B020000 0.638
048 C010000 250000
048 C020000 0.625
PAGE 5
048 D010000 500000
048 D020000 0.613
048 E010000 1000000
048 E020000 0.600
048 F010000 3000000
048 F020000 0.588
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 5000000
048 K020000 0.575
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 N
054 A000000 Y
054 B000000 N
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
054 O000000 Y
055 A000000 Y
055 B000000 N
056 000000 N
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 0
062 A000000 Y
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 0.9
062 F000000 0.0
PAGE 6
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 155.1
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 0
063 B000000 9.8
064 A000000 Y
064 B000000 Y
065 000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 N
070 B010000 N
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
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
PAGE 7
070 O020000 N
070 P010000 N
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 140795
071 B000000 143793
071 C000000 903344
071 D000000 16
072 A000000 12
072 B000000 51317
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 5785
072 G000000 0
072 H000000 0
072 I000000 209
072 J000000 243
072 K000000 39
072 L000000 78
072 M000000 10
072 N000000 0
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 22
072 S000000 565
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 1063
072 X000000 8014
072 Y000000 60
072 Z000000 43363
072AA000000 0
072BB000000 18076
072CC010000 0
072CC020000 16827
072DD010000 36794
072DD020000 0
072EE000000 0
073 A010000 0.8510
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 0
074 B000000 0
074 C000000 5000
PAGE 8
074 D000000 902877
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 2585
074 K000000 0
074 L000000 16940
074 M000000 78
074 N000000 927480
074 O000000 4911
074 P000000 491
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 1717
074 S000000 338400
074 T000000 581961
074 U010000 43237
074 U020000 0
074 V010000 13.46
074 V020000 0.00
074 W000000 0.0000
074 X000000 3794
074 Y000000 66392
075 A000000 0
075 B000000 588140
076 000000 12.97
077 A000000 Y
077 B000000 Y
077 Q010000 Y
077 Q030000 Y
080 A000000 FEDERAL INSURANCE CO.
080 B000000 CONTINENTAL CASUALTY, AIG, GULF
080 C000000 80000
081 A000000 Y
081 B000000 133
082 A000000 N
082 B000000 0
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
PAGE 9
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
087 A010000 COMMON STOCK
087 A020000 6706K4105
087 A030000 NPT
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 Y
SIGNATURE STEPHEN D. FOY
TITLE V.P. & CONTROLLER