I, Ronald E. Robison, certify that:

   1.    I have reviewed this report on Form N-CSR of Van Kampen Trust For
         Insured Municipals;

   2.    Based on my knowledge, this report does not contain any untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements made, in light of the circumstances under which
         such statements were made, not misleading with respect to the period
         covered by this report;

   3.    Based on my knowledge, the financial statements and other financial
         information included in this report, fairly present in all material
         respects the financial condition, results of operations, changes in net
         assets, and cash flows (if the financial statements are required to
         include a statement of cash flows) of the registrant as of, and for,
         the periods presented in this report;

   4.    The registrant's other certifying officers and I are responsible for
         establishing and maintaining disclosure controls and procedures (as
         defined in Rule 30a-3(c) under the Investment Company Act of 1940) for
         the registrant and have:

         a)    designed such disclosure controls and procedures, or caused such
               disclosure controls and procedures to be designed under our
               supervision, to ensure that material information relating to the
               registrant, including its consolidated subsidiaries, is made
               known to us by others within those entities, particularly during
               the period in which this report is being prepared;

         b)    [Omitted]

         c)    evaluated the effectiveness of the registrant's disclosure
               controls and procedures and presented in this report our
               conclusions about the effectiveness of the disclosure controls
               and procedures, as of a date within 90 days prior to the filing
               date of this report based on such evaluation; and

         d)    disclosed in this report any change in the registrant's internal
               control over financial reporting that occurred during the
               registrant's most recent fiscal half-year (the registrant's
               second fiscal half-year in the case of an annual report) that has
               materially affected, or is reasonably likely to materially
               affect, the registrant's internal control over financial
               reporting; and

   5.    The registrant's other certifying officer(s) and I have disclosed to
         the registrant's auditors and the audit committee of the registrant's
         board of directors (or persons performing the equivalent functions):

         a)    all significant deficiencies and material weaknesses in the
               design or operation of internal control over financial reporting
               which are reasonably likely to adversely affect the registrant's
               ability to record, process, summarize, and report financial
               information; and

         b)    any fraud, whether or not material, that involves management or
               other employees who have a significant role in the registrant's
               internal controls over financial reporting.

Date: December 14, 2004

                                                      /s/ Ronald E. Robison
                                                     ---------------------------
                                                     Principal Executive Officer



I, James M. Dykas, certify that:

1.    I have reviewed this report on Form N-CSR of Van Kampen Trust For Insured
      Municipals;

2.    Based on my knowledge, this report does not contain any untrue statement
      of a material fact or omit to state a material fact necessary to make the
      statements made, in light of the circumstances under which such statements
      were made, not misleading with respect to the period covered by this
      report;

3.    Based on my knowledge, the financial statements and other financial
      information included in this report, fairly present in all material
      respects the financial condition, results of operations, changes in net
      assets, and cash flows (if the financial statements are required to
      include a statement of cash flows) of the registrant as of, and for, the
      periods presented in this report;

4.    The registrant's other certifying officers and I are responsible for
      establishing and maintaining disclosure controls and procedures (as
      defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the
      registrant and have:

      a)    designed such disclosure controls and procedures, or caused such
            disclosure controls and procedures to be designed under our
            supervision, to ensure that material information relating to the
            registrant, including its consolidated subsidiaries, is made known
            to us by others within those entities, particularly during the
            period in which this report is being prepared;

      b)    [Omitted]

      c)    evaluated the effectiveness of the registrant's disclosure controls
            and procedures and presented in this report our conclusions about
            the effectiveness of the disclosure controls and procedures, as of a
            date within 90 days prior to the filing date of this report based on
            such evaluation; and

      d)    disclosed in this report any change in the registrant's internal
            control over financial reporting that occurred during the
            registrant's most recent fiscal half-year (the registrant's second
            fiscal half-year in the case of an annual report) that has
            materially affected, or is reasonably likely to materially affect,
            the registrant's internal control over financial reporting; and

5.    The registrant's other certifying officer(s) and I have disclosed to the
      registrant's auditors and the audit committee of the registrant's board of
      directors (or persons performing the equivalent functions):

      a)    all significant deficiencies and material weaknesses in the design
            or operation of internal control over financial reporting which are
            reasonably likely to adversely affect the registrant's ability to
            record, process, summarize, and report financial information; and

      b)    any fraud, whether or not material, that involves management or
            other employees who have a significant role in the registrant's
            internal controls over financial reporting.

Date: December 14, 2004

                                                      /s/ James M. Dykas
                                                     ---------------------------
                                                     Principal Financial Officer