PRUDENTIAL UNIT TRUSTS INSURED TAX EXEMPT SERIES 31, 497J, 1995-03-03

PRUDENTIAL UNIT TRUSTS INSURED TAX EXEMPT SERIES 31
497J, 1995-03-03

Previous: STRUCTURAL DYNAMICS RESEARCH CORP /OH/, SC 13G, 1995-03-03

Next: SOTHEBYS HOLDINGS INC, SC 13G, 1995-03-03



<PAGE>
                              Rule 497(j)
                              Registration No. 33-17354

Pursuant to Rule 497(j) promulgated under the Securities Act of
1933, the Registrant, Prudential Unit Trusts, Insured Tax-Exempt 
Series 31 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.

                         PRUDENTIAL UNIT TRUSTS, 
                         Insured Tax-Exempt Series 31
               

                         By: Prudential Securities Incorporated
                                  (Depositor)


                             Kenneth Swankie
                             Kenneth Swankie
                             Authorized Signatory