INSURED MUNICIPALS INCOME TRUST & IN QU TAX EX TR MUL SE 309, 497J, 1998-11-23

INSURED MUNICIPALS INCOME TRUST & IN QU TAX EX TR MUL SE 309
497J, 1998-11-23

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                                November 23, 1998

Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549-1004
Attn:  Filing Desk, Stop 1-4

     Re:  Insured Municipals Income Trust & Investors' Quality
          Tax-Exempt Trust, Series 309
          (File No. 333-59229) (CIK No.1024825)
- --------------------------------------------------------------------------------


Gentlemen:

         In accordance with the provisions of Rule 497(j) of Regulation C under
the Securities Act of 1933 (the "Securities Act") this letter serves to certify
that the most recent amendment to the registration statement of Form S-6 for the
above captioned Trust does not differ from that which would have been filed
pursuant to Rule 497(b) of the Securities Act. Amendment No. 1 to the
registration statement, which was the most recent amendment to the registration
statement, was filed electronically with the Commission on November 19, 1998.

                                        Very truly yours,

                                        VAN KAMPEN FUNDS INC.