PAGE  1
000 A000000 05/31/2001
000 C000000 0000847411
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 COLONIAL INVESTMENT GRADE MUNICIPAL TRUST
001 B000000 811-5785
001 C000000 6174263750
002 A000000 ONE FINANCIAL CENTER
002 B000000 BOSTON
002 C000000 MA
002 D010000 02111
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 COLONIAL MANAGEMENT ASSOCIATES, INC.
008 B000001 A
008 C000001 801-2019
008 D010001 BOSTON
008 D020001 MA
008 D030001 02111
011 A000001 PAINEWEBBER INCORPORATED
011 B000001 8-16267
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10019
011 A000002 A.G. EDWARDS & SONS, INC.
011 B000002 8-13580
011 C010002 ST. LOUIS
011 C020002 MO
011 C030002 63103
011 A000003 THOMSON MCKINNON SECURITIES INC.
011 B000003 8-14450
011 C010003 NEW YORK
      PAGE  2
011 C020003 NY
011 C030003 10005
011 A000004 DAIN BOSWORTH INCORPORATED
011 B000004 8-3259
011 C010004 MINNEAPOLIS
011 C020004 MN
011 C030004 55402
011 A000005 MORGAN KEEGAN & COMPANY, INC.
011 B000005 8-15001
011 C010005 MEMPHIS
011 C020005 TN
011 C030005 38103
011 A000006 PIPER, JAFFRAY & HOPWOOD INC.
011 B000006 8-15204
011 C010006 MINNEAPOLIS
011 C020006 MN
011 C030006 55440
011 A000007 RAYMOND JAMES & ASSOCIATES, INC.
011 B000007 8-10999
011 C010007 ST. PETERSBURG
011 C020007 FL
011 C030007 33716
012 A000001 EQUISERVE TRUST COMPANY
012 B000001 84-999
012 C010001 BOSTON
012 C020001 MA
012 C030001 02110
013 A000001 PRICEWATERHOUSECOOPERS, LLP.
013 B010001 BOSTON
013 B020001 MA
013 B030001 02110
014 A000001 HAMBRECHT AND QUIST
014 B000001 8-13858
015 A000001 THE CHASE MANHATTAN BANK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10004
015 E010001 X
018  000000 Y
019 A000000 Y
019 B000000   50
019 C000000 COLGPFUNDS
020 A000001 BEAR STEARNS
020 B000001 13-4946705
020 C000001      2
020 A000002 AUBREY LANSTON
020 C000002      2
020 A000003 GREENWICH/MERRILL LYNCH
020 B000003 13-5674085
020 C000003      2
      PAGE  3
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
020 C000008      0
020 C000009      0
020 C000010      0
021  000000        6
022 A000001 PAINE WEBBER
022 B000001 13-2638166
022 C000001      7297
022 D000001      8553
022 A000002 PIPER JAFFRAY
022 B000002 41-0953246
022 C000002      8125
022 D000002      7525
022 A000003 WELLS FARGO
022 C000003      6140
022 D000003      5440
022 A000004 STATE STREET BANK
022 C000004      7386
022 D000004      2872
022 A000005 OPPENHEIMER
022 B000005 13-2798343
022 C000005      3583
022 D000005      3822
022 A000006 BANK AMERICA
022 C000006      3216
022 D000006      2954
022 A000007 A.G. EDWARDS
022 C000007      1000
022 D000007      1675
022 A000008 WILLIAM BLAIRE
022 B000008 36-2214610
022 C000008      1885
022 D000008         0
022 A000009 SAMUEL RAMIREZ
022 B000009 13-2695511
022 C000009         0
022 D000009      1784
022 A000010 LOOP CAPITAL
022 C000010      1339
022 D000010         0
023 C000000      43377
023 D000000      38360
024  000000 N
025 D000001       0
025 D000002       0
025 D000003       0
025 D000004       0
025 D000005       0
      PAGE  4
025 D000006       0
025 D000007       0
025 D000008       0
026 A000000 Y
026 B000000 Y
026 C000000 Y
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
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
      PAGE  5
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  0.650
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 N
054 A000000 Y
054 B000000 N
054 C000000 Y
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
      PAGE  6
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 Y
054 O000000 N
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 Y
062 B000000   0.0
062 C000000   0.0
062 D000000   0.0
062 E000000   1.2
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  98.9
062 P000000   0.0
062 Q000000   0.3
062 R000000   0.0
063 A000000   0
063 B000000 10.4
064 A000000 N
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 Y
070 B010000 N
070 B020000 N
070 C010000 Y
070 C020000 Y
070 D010000 N
070 D020000 N
      PAGE  7
070 E010000 Y
070 E020000 Y
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 Y
070 K010000 Y
070 K020000 N
070 L010000 N
070 L020000 N
070 M010000 N
070 M020000 N
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 Y
070 R020000 N
071 A000000     27412
071 B000000     26132
071 C000000    182825
071 D000000   14
072 A000000  6
072 B000000     5072
072 C000000        0
072 D000000        0
072 E000000        0
072 F000000      604
072 G000000        0
072 H000000        0
072 I000000        0
072 J000000        1
072 K000000        0
072 L000000        0
072 M000000        5
072 N000000        0
072 O000000        0
072 P000000        0
072 Q000000       25
072 R000000        0
072 S000000        0
      PAGE  8
072 T000000        0
072 U000000        0
072 V000000        0
072 W000000      155
072 X000000      790
072 Y000000        0
072 Z000000     4282
072AA000000     1092
072BB000000        0
072CC010000     2529
072CC020000        0
072DD010000        0
072DD020000        0
072EE000000        0
073 A010000   0.3900
073 A020000   0.0000
073 B000000   0.0000
073 C000000   0.0000
074 A000000       43
074 B000000        0
074 C000000     2285
074 D000000   182771
074 E000000      527
074 F000000        0
074 G000000        0
074 H000000        0
074 I000000        0
074 J000000       65
074 K000000        0
074 L000000     2957
074 M000000       11
074 N000000   188659
074 O000000     2969
074 P000000       11
074 Q000000        0
074 R010000        0
074 R020000        0
074 R030000        0
074 R040000      813
074 S000000        0
074 T000000   184866
074 U010000    11509
074 U020000        0
074 V010000    10.85
074 V020000     0.00
074 W000000   0.0000
074 X000000        0
074 Y000000        0
075 A000000        0
075 B000000   126344
076  000000     9.81
      PAGE  9
077 A000000 Y
077 Q010000 Y
SIGNATURE   DOUGLAS RODES
TITLE       VICE PRESIDENT