<DOCUMENT>
<TYPE>EX-99.2N.2
<SEQUENCE>13
<FILENAME>c72644a1exv99w2nw2.txt
<DESCRIPTION>CONSENT OF ORRICK, HERRINGTON & SUTCLIFFE, LLP
<TEXT>
<PAGE>

                                                                     EXHIBIT n.2


                  CONSENT OF ORRICK, HERRINGTON & SUTCLIFFE LLP


         We consent to the reference to our firm under the caption "California
Tax Matters" in Appendix E to the Statement of Additional Information contained
in the Registration Statement (Form N-2) and related Prospectus of Nuveen
Insured California Tax-Free Advantage Municipal Fund filed with the Securities
and Exchange Commission under the Securities Act of 1933 on January 8, 2003. We
do not hereby admit that we are experts whose consent is required.

                                             ORRICK, HERRINGTON & SUTCLIFFE LLP



                                             By:  /s/ Kenneth G. Whyburn
                                                -------------------------------
                                                      Kenneth G. Whyburn


San Francisco, California
January 8, 2003







</TEXT>
</DOCUMENT>
