NATIONAL MUNICIPAL TRUST INSURED SERIES 12, 497J, 1995-06-05

NATIONAL MUNICIPAL TRUST INSURED SERIES 12
497J, 1995-06-05

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                              Rule 497(j)
                              Registration No. 33-00483

Pursuant to Rule 497(j) promulgated under the Securities Act of
1933, the Registrant, National Municipal Trust, Insured Series 12 
hereby
certifies as follows:

1)   the form of prospectus that would have been filed under
paragraph (b) of Rule 497 does not differ from that contained in
the most recent amendment to the registration statement, and

2)   the text of the said amendment to the registration statement
has been filed electronically.

                         NATIONAL MUNICIPAL TRUST, 
                         Insured Series 12
               

                         By: Prudential Securities Incorporated
                                  (Depositor)


                             Richard R. Hoffmann
                             Richard R. Hoffmann
                             Authorized Signatory