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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   Form N-8F

I.   General Identifying Information

1.   Reason fund is applying to deregister (check only one; for descriptions,
     see Instruction 1 above):

     [ ]  Merger

     [ ]  Liquidation

     [X]  Abandonment of Registration

          (Note: Abandonments of Registration answer only questions 1 through
          15, 24 and 25 of this form and complete verification at the end of the
          form.)

     [ ]  Election of status as a Business Development Company

          (Note: Business Development Companies answer only questions 1 through
          10 of this form and complete verification at the end of the form.)

2.   Name of fund: Nuveen Insured CA Tax Free Advantage Municipal Fund 2

3.   Securities and Exchange Commission File No.: 811-21304

4.   Is this an initial Form N-8F or an amendment to a previously filed Form
     N-8F?

     [X]  Initial Application   [ ]  Amendment

5.   Address of Principal Executive Office (include No. & Street, City, State,
     Zip Code):

     333 West Wacker Drive, Chicago, IL 60606

6.   Name, address and telephone number of individual the Commission staff
     should contact with any questions regarding this form: Stacy H. Winick,
     Bell, Boyd & Lloyd LLC, 1615 L Street, N.W., Suite 1200, Washington, DC
     20036, (202) 466-6300

7.   Name, address and telephone number of individual or entity responsible for
     maintenance and preservation of fund records in accordance with rules 31a-1
     and 31a-2 under the Act [17 CFR 270.31a-1, .31a-2]: Nuveen Advisory Corp.,
     333 West Wacker Drive, Chicago, IL 60606

     Note: Once deregistered, a fund is still required to maintain and preserve
     the records described in rules 31a-1 and 31a-2 for the periods specified in
     those rules.



8.   Classification of fund (check only one):

     [X]  Management company;

     [ ]  Unit investment trust; or

     [ ]  Face-amount certificate company.

9.   Subclassification if the fund is a management company (check only one):

     [ ]  Open-end   [X]  Closed-end

10.  State law under which the fund was organized or formed (e.g., Delaware,
     Massachusetts): Massachusetts

11.  Provide the name and address of each investment adviser of the fund
     (including sub-advisers) during the last five years, even if the fund's
     contracts with those advisers have been terminated: Nuveen Advisory Corp.,
     333 West Wacker Drive, Chicago, IL 60606

12.  Provide the name and address of each principal underwriter of the fund
     during the last five years, even if the fund's contracts with those
     underwriters have been terminated: Nuveen Investments Inc., 333 West Wacker
     Drive, Chicago, IL 60606

13.  If the fund is a unit investment trust ("UIT") provide:

     (a)  Depositor's name(s) and address(es):

     (b)  Trustee's name(s) and address(es):

14.  Is there a UIT registered under the Act that served as a vehicle for
     investment in the fund (e.g., an insurance company separate account)?

     [ ]  Yes   [X]  No

     If yes, for each UIT state:

          Name(s):

          File No.: 811-
                        -----

          Business Address:

15.  (a)  Did the fund obtain approval from the board of directors concerning
          the decision to engage in a Merger, Liquidation or Abandonment of
          Registration?

          [X]  Yes   [ ]  No

          If Yes, state the date on which the board vote took place: November
          16-18, 2004

          If No, explain:

     (b)  Did the fund obtain approval from the shareholders concerning the
          decision to engage in a Merger, Liquidation or Abandonment of
          Registration?



          [ ]  Yes   [X]  No

          If Yes, state the date on which the shareholder vote took place:

          If No, explain: The fund has no shareholders.

II.  Distributions to Shareholders

16.  Has the fund distributed any assets to its shareholders in connection with
     the Merger or Liquidation?

     [ ]  Yes   [X]  No

     (a)  If Yes, list the date(s) on which the fund made those distributions:

     (b)  Were the distributions made on the basis of net assets?

          [ ]  Yes   [ ]  No

     (c)  Were the distributions made pro rata based on share ownership?

          [ ]  Yes   [ ]  No

     (d)  If No to (b) or (c) above, describe the method of distributions to
          shareholders. For Mergers, provide the exchange ratio(s) used and
          explain how it was calculated:

     (e)  Liquidations only:

          Were any distributions to shareholders made in kind?

          [ ]  Yes   [ ]  No

          If Yes, indicate the percentage of fund shares owned by affiliates, or
          any other affiliation of shareholders:

17.  Closed-end funds only:

     Has the fund issued senior securities?

     [ ]  Yes   [X]  No

     If Yes, describe the method of calculating payments to senior
     securityholders and distributions to other shareholders:

18.  Has the fund distributed all of its assets to the fund's shareholders? N/A

     [ ]  Yes   [ ]  No

     If No,

     (a)  How many shareholders does the fund have as of the date this form is
          filed? None

     (b)  Describe the relationship of each remaining shareholder to the fund:
          N/A



19.  Are there any shareholders who have not yet received distributions in
     complete liquidation of their interests? N/A

     [ ]  Yes   [ ]  No

     If Yes, describe briefly the plans (if any) for distributing to, or
     preserving the interests of, those shareholders:

III. Assets and Liabilities

20.  Does the fund have any assets as of the date this form is filed?

     (See question 18 above)

     [ ]  Yes   [X]  No

     If Yes,

     (a)  Describe the type and amount of each asset retained by the fund as of
          the date this form is filed:

     (b)  Why has the fund retained the remaining assets?

     (c)  Will the remaining assets be invested in securities?

          [ ]  Yes   [ ]  No

21.  Does the fund have any outstanding debts (other than face-amount
     certificates if the fund is a face-amount certificate company) or any other
     liabilities?

     [ ]  Yes   [X]  No

     If Yes,

     (a)  Describe the type and amount of each debt or other liability:

     (b)  How does the fund intend to pay these outstanding debts or other
          liabilities?

IV.  Information About Event(s) Leading to Request For Deregistration

22.  (a)  List the expenses incurred in connection with the Merger or
          Liquidation: N/A

          (i)  Legal expenses:

          (ii) Accounting expenses:

          (iii) Other expenses (list and identify separately)

          (iv) Total expenses (sum of lines (i)-(iii) above):

     (b)  How were those expenses allocated?

     (c)  Who paid those expenses?

     (d)  How did the fund pay for unamortized expenses (if any)?



23.  Has the fund previously filed an application for an order of the Commission
     regarding the Merger or Liquidation?

     [ ]  Yes   [X]  No

     If Yes, cite the release numbers of the Commission's notice and order or,
     if no notice or order has been issued, the file number and date the
     application was filed:

V.   Conclusion of Fund Business

24.  Is the fund a party to any litigation or administrative proceeding?

     [ ]  Yes   [X]  No

     If Yes, describe the nature of any litigation or proceeding and the
     position taken by the fund in that litigation:

25.  Is the fund now engaged, or intending to engage, in any business activities
     other than those necessary for winding up its affairs?

     [ ]  Yes   [X]  No

     If Yes, describe the nature and extent of those activities:

VI.  Mergers Only

26.  (a)  State the name of the fund surviving the Merger:

     (b)  State the Investment Company Act file number of the fund surviving the
          Merger: 811-
                      -----

     (c)  If the merger or reorganization agreement has been filed with the
          Commission, state the file number(s), form type used and date the
          agreement was filed:

     (d)  If the merger or reorganization agreement has not been filed with the
          Commission, provide a copy of the agreement as an exhibit to this
          form.



                                  VERIFICATION

     The undersigned states that (i) she has executed this Form N-8F application
for an order under section 8(f) of the Investment Company Act of 1940 on behalf
of Nuveen Insured CA Tax Free Advantage Municipal Fund 2, (ii) she is the Vice
President and Secretary of Nuveen Insured CA Tax Free Advantage Municipal Fund
2, and (iii) all actions by shareholders, directors, and any other body
necessary to authorize the undersigned to execute and file this Form N-8F
application have been taken. The undersigned also states that the facts set
forth in this Form N-8F application are true to the best of her knowledge,
information and belief.


                                        /s/ Jessica R. Droeger
                                        ----------------------------------------
                                        Jessica R. Droeger
                                        Vice President and Secretary