FORM OF SECTION 906 CERTIFICATION

                            SECTION 906 CERTIFICATION


Pursuant to 18 U.S.C.  ss. 1350, the  undersigned  officer of BlackRock New York
Investment  Quality Municipal Trust Inc. (the "Company"),  hereby certifies,  to
the best of his  knowledge,  that the  Company's  Report  on Form  N-CSR for the
period ended 04/30/03 (the "Report")  fully  complies with the  requirements  of
Section 13(a) or 15(d),  as applicable,  of the Securities  Exchange Act of 1934
and that  the  information  contained  in the  Report  fairly  presents,  in all
material  respects,  the  financial  condition  and results of operations of the
Company.


Dated:      06/30/03
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/s/ Robert S. Kapito
- -----------------------------------
Name:  Robert S. Kapito
Title: Principal Executive Officer



/s/ Henry Gabbay
- ------------------------------------
Name:  Henry Gabbay
Title: Principal Financial Officer


A signed  original of this written  statement  required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the  electronic  version of this written  statement
required  by  Section  906,  has been  provided  to the  registrant  and will be
retained  by the  registrant  and  furnished  to  the  Securities  and  Exchange
Commission or its staff upon request.