INSURED MUNICIPALS INCOME TR & INVS QUAL TAX EX TR MUT SE 30, 485BPOS, EX-99.1.1, 2000-09-25

INSURED MUNICIPALS INCOME TR & INVS QUAL TAX EX TR MUT SE 30
485BPOS, EX-99.1.1, 2000-09-25

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               Consent of Independent Certified Public Accountants

     We have issued our report dated July 14, 2000 accompanying the financial
statements of Insured Municipals Income Trust and Investors' Quality Tax-Exempt
Trust, Multi-Series 30 as of May 31, 2000, and for the period then ended,
contained in this Post-Effective Amendment No. 15 to Form S-6.

     We consent to the use of the aforementioned report in the Post-Effective
Amendment and to the use of our name as it appears under the caption "Auditors".


                                                              Grant Thornton LLP


Chicago, Illinois
 September 25, 2000