NUVEEN CALIFORNIA AMT-FREE QUALITY MUNICIPAL INCOME FUND

Regulatory Filings • Jul 30, 2010

N-Q 1 nq2.htm NKX_NQ nq2.htm Licensed to: FGS Document Created using EDGARizerAgent 5.1.5.0 Copyright 1995 - 2009 Thomson Reuters. All rights reserved.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-21212

Nuveen Insured California Tax-Free Advantage Municipal Fund

(Exact name of registrant as specified in charter)

Nuveen Investments

333 West Wacker Drive, Chicago, Illinois 60606

(Address of principal executive offices) (Zip code)

Kevin J. McCarthy

Vice President and Secretary

333 West Wacker Drive, Chicago, Illinois 60606

(Name and address of agent for service)

Registrant's telephone number, including area code: 312-917-7700

Date of fiscal year end: 2/28

Date of reporting period: 5/31/10

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Schedule of Investments

| | Portfolio of Investments
(Unaudited) | | | |
| --- | --- | --- | --- | --- |
| | Nuveen Insured California
Tax-Free Advantage Municipal Fund (NKX) | | | |
| | May 31, 2010 | | | |
| Principal | | Optional Call | | |
| Amount (000) | Description (1) | Provisions (2) | Ratings (3) | Value |
| | Consumer Staples – 4.7% (3.2%
of Total Investments) | | | |
| $ 6,070 | Golden State Tobacco Securitization Corporation,
California, Tobacco Settlement Asset-Backed | 6/22 at 100.00 | BBB | $ 3,893,541 |
| | Bonds, Series 2007A-2, 0.000%, 6/01/37 | | | |
| | Health Care – 23.0% (16.0% of
Total Investments) | | | |
| 1,630 | California Health Facilities Financing Authority,
Revenue Bonds, Childrens Hospital Los | 7/20 at 100.00 | AAA | 1,633,716 |
| | Angeles, Series 2010A,
5.250%, 7/01/38 – AGC Insured | | | |
| 1,800 | California Infrastructure Economic Development Bank,
Revenue Bonds, Kaiser Hospital Assistance | 8/11 at 102.00 | A+ | 1,822,806 |
| | LLC, Series 2001A, 5.550%,
8/01/31 | | | |
| 4,000 | California Statewide Community Development
Authority, Insured Health Facility Revenue Bonds, | 7/17 at 100.00 | AAA | 4,120,400 |
| | Catholic Healthcare West,
Series 2008K, 5.500%, 7/01/41 – AGC Insured | | | |
| 1,815 | California Statewide Community Development
Authority, Revenue Bonds, Kaiser Permanante System, | 3/16 at 100.00 | A+ | 1,730,022 |
| | Series 2006, 5.000%,
3/01/41 | | | |
| 5,020 | California Statewide Community Development
Authority, Revenue Bonds, Kaiser Permanente System, | 3/16 at 100.00 | AA+ | 5,064,578 |
| | Series 2006, 5.000%,
3/01/41 – BHAC Insured (UB) | | | |
| 4,060 | California Statewide Community Development
Authority, Revenue Bonds, Sherman Oaks Health | No Opt. Call | A1 | 4,089,963 |
| | System, Series 1998A,
5.000%, 8/01/22 – AMBAC Insured | | | |
| 662 | California Statewide Communities Development
Authority, Revenue Bonds, Saint Joseph Health | 7/18 at 100.00 | AAA | 716,074 |
| | System, Trust 2554, 18.449%, 7/01/47 – AGM Insured
(IF) | | | |
| 18,987 | Total
Health Care | | | 19,177,559 |
| | Housing/Multifamily – 1.4%
(1.0% of Total Investments) | | | |
| 1,165 | Poway, California, Housing Revenue Bonds, Revenue
Bonds, Poinsettia Mobile Home Park, Series | 5/13 at 102.00 | AA– | 1,176,091 |
| | 2003, 5.000%, 5/01/23 | | | |
| | Long-Term Care – 3.6% (2.5% of
Total Investments) | | | |
| 1,000 | ABAG Finance Authority for Non-Profit Corporations,
California, Insured Senior Living Revenue | 11/12 at 100.00 | A– | 1,010,610 |
| | Bonds, Odd Fellows Home of
California, Series 2003A, 5.200%, 11/15/22 | | | |
| 2,000 | California Health Facilities Financing Authority,
Cal-Mortgage Insured Revenue Bonds, Northern | 1/13 at 100.00 | A– | 2,007,100 |
| | California Retired Officers
Community Corporation – Paradise Valley Estates, Series 2002, | | | |
| | 5.250%, 1/01/26 | | | |
| 3,000 | Total
Long-Term Care | | | 3,017,710 |
| | Tax
Obligation/General – 21.6% (15.0% of Total Investments) | | | |
| 2,000 | Butte-Glenn Community College District, Butte and
Glenn Counties, California, General | 8/12 at 101.00 | Aa2 | 2,075,500 |
| | Obligation Bonds, Series
2002A, 5.000%, 8/01/26 – NPFG Insured | | | |
| 1,030 | Fontana Unified School District, San Bernardino
County, California, General Obligation Bonds, | 8/18 at 100.00 | AAA | 1,160,656 |
| | Trust 2668, 9.389%, 8/01/28
– AGM Insured (IF) | | | |
| 450 | Fremont Unified School District, Alameda County,
California, General Obligation Bonds, Series | 8/12 at 101.00 | Aa2 | 467,267 |
| | 2002A, 5.000%, 8/01/25 –
FGIC Insured | | | |
| 2,000 | Los Angeles, California, General Obligation Bonds,
Series 2002A, 5.000%, 9/01/22 – NPFG Insured | 9/12 at 100.00 | Aa2 | 2,115,840 |
| 1,000 | Murrieta Valley Unified School District, Riverside
County, California, General Obligation | 9/13 at 100.00 | Aa2 | 1,031,250 |
| | Bonds, Series 2003A,
5.000%, 9/01/26 – FGIC Insured | | | |
| 1,000 | Murrieta Valley Unified School District, Riverside
County, California, General Obligation | 9/17 at 100.00 | AAA | 975,260 |
| | Bonds, Series 2007, 4.500%,
9/01/30 – AGM Insured | | | |
| 140 | Roseville Joint Union High School District, Placer
County, California, General Obligation | 8/15 at 100.00 | AA– | 145,153 |
| | Bonds, Series 2006B,
5.000%, 8/01/27 – FGIC Insured | | | |
| 3,000 | San Diego Unified School District, California,
General Obligation Bonds, Election of 1998, | 7/10 at 100.00 | Aa1 | 3,011,490 |
| | Series 2000B, 5.125%,
7/01/22 – NPFG Insured | | | |
| 3,855 | San Rafael City High School District, Marin County,
California, General Obligation Bonds, | 8/12 at 100.00 | AAA | 3,973,695 |
| | Series 2003A, 5.000%,
8/01/28 – AGM Insured | | | |
| 12,520 | Yosemite Community College District, California,
General Obligation Bonds, Capital | No Opt. Call | AA– | 3,054,504 |
| | Appreciation, Election
2004, Series 2010D, 0.000%, 8/01/42 (WI/DD, Settling 6/02/10) | | | |
| 26,995 | Total Tax
Obligation/General | | | 18,010,615 |
| | Tax
Obligation/Limited – 46.2% (32.0% of Total Investments) | | | |
| 550 | Baldwin Park Public Financing Authority, California,
Sales Tax and Tax Allocation Bonds, | 8/13 at 102.00 | BBB | 556,116 |
| | Puente Merced Redevelopment
Project, Series 2003, 5.250%, 8/01/21 | | | |
| 1,165 | Burbank Public Financing Authority, California,
Revenue Refunding Bonds, Golden State | 12/13 at 100.00 | A | 1,181,438 |
| | Redevelopment Project,
Series 2003A, 5.250%, 12/01/22 – AMBAC Insured | | | |
| 4,000 | California State Public Works Board, Lease Revenue
Bonds, Department of General Services, | 12/12 at 100.00 | A2 | 3,935,840 |
| | Capital East End Project,
Series 2002A, 5.000%, 12/01/27 – AMBAC Insured | | | |
| 170 | Capistrano Unified School District, Orange County,
California, Special Tax Bonds, Community | 9/15 at 100.00 | A | 166,092 |
| | Facilities District, Series
2005, 5.000%, 9/01/24 – FGIC Insured | | | |
| 525 | Chino Redevelopment Agency, California, Merged Chino
Redevelopment Project Area Tax Allocation | 9/16 at 101.00 | A– | 466,930 |
| | Bonds, Series 2006, 5.000%,
9/01/38 – AMBAC Insured | | | |
| 1,610 | Folsom Public Financing Authority, California,
Special Tax Revenue Bonds, Series 2004A, | 9/12 at 102.00 | N/R | 1,620,111 |
| | 5.000%, 9/01/21 – AMBAC
Insured | | | |
| 3,285 | Golden State Tobacco Securitization Corporation,
California, Enhanced Tobacco Settlement | 6/15 at 100.00 | A2 | 3,016,780 |
| | Asset-Backed Revenue Bonds,
Series 2005A, 5.000%, 6/01/45 – AMBAC Insured | | | |
| 2,905 | Golden State Tobacco Securitization Corporation,
California, Enhanced Tobacco Settlement | 6/15 at 100.00 | AAA | 2,628,967 |
| | Revenue Bonds, Drivers
Trust 2091, 9.523%, 6/01/45 – AGC Insured (IF) | | | |
| 1,000 | Hesperia Public Financing Authority, California,
Redevelopment and Housing Projects Tax | 9/17 at 100.00 | Ba1 | 839,550 |
| | Allocation Bonds, Series
2007A, 5.000%, 9/01/37 – SYNCORA GTY Insured | | | |
| 5,540 | Irvine Public Facilities and Infrastructure
Authority, California, Assessment Revenue Bonds, | 9/13 at 100.00 | N/R | 5,558,721 |
| | Series 2003C, 5.000%,
9/02/21 – AMBAC Insured | | | |
| 315 | Los Angeles Community Redevelopment Agency,
California, Lease Revenue Bonds, Manchester Social | 9/15 at 100.00 | A1 | 281,062 |
| | Services Project, Series
2005, 5.000%, 9/01/37 – AMBAC Insured | | | |
| 1,770 | Los Angeles Unified School District, California,
Certificates of Participation, Administration | 10/12 at 100.00 | Aa3 | 1,779,204 |
| | Building Project II, Series
2002C, 5.000%, 10/01/27 – AMBAC Insured | | | |
| 2,000 | Los Angeles, California, Certificates of
Participation, Municipal Improvement Corporation, | 6/13 at 100.00 | A+ | 2,011,080 |
| | Series 2003AW, 5.000%,
6/01/33 – AMBAC Insured | | | |
| 1,500 | Los Angeles, California, Municipal Improvement
Corporation, Lease Revenue Bonds, Police | 1/17 at 100.00 | A+ | 1,488,255 |
| | Headquarters, Series 2006A,
4.750%, 1/01/31 – FGIC Insured | | | |
| 1,500 | Los Osos, California, Improvement Bonds, Community
Services Wastewater Assessment District 1, | 9/10 at 103.00 | A | 1,344,165 |
| | Series 2002, 5.000%,
9/02/33 – NPFG Insured | | | |
| 150 | Rialto Redevelopment Agency, California, Tax
Allocation Bonds, Merged Project Area, Series | 9/15 at 100.00 | A– | 134,912 |
| | 2005A, 5.000%, 9/01/35 –
SYNCORA GTY Insured | | | |
| 190 | Roseville, California, Certificates of
Participation, Public Facilities, Series 2003A, 5.000%, | 8/13 at 100.00 | AA– | 190,372 |
| | 8/01/25 – AMBAC
Insured | | | |
| | San Buenaventura, California, Certificates of
Participation, Golf Course Financing Project, | | | |
| | Series 2002D: | | | |
| 3,000 | 5.000%, 2/01/27 – AMBAC
Insured | 2/12 at 100.00 | AA– | 3,022,320 |
| 3,300 | 5.000%, 2/01/32 – AMBAC
Insured | 2/12 at 100.00 | AA– | 3,309,240 |
| 1,200 | San Diego Redevelopment Agency, California,
Subordinate Lien Tax Increment and Parking Revenue | 9/10 at 100.50 | Baa2 | 1,164,168 |
| | Bonds, Centre City Project,
Series 2003B, 5.250%, 9/01/26 | | | |
| 2,770 | San Jose Financing Authority, California, Lease
Revenue Refunding Bonds, Civic Center Project, | 6/12 at 100.00 | AA+ | 2,785,734 |
| | Series 2002B, 5.000%,
6/01/32 – AMBAC Insured | | | |
| 1,000 | San Jose Redevelopment Agency, California, Tax
Allocation Bonds, Merged Project Area, Series | 8/15 at 100.00 | A | 990,510 |
| | 2005A, 5.000%, 8/01/28 – NPFG Insured | | | |
| 39,445 | Total Tax
Obligation/Limited | | | 38,471,567 |
| | Transportation – 7.8% (5.4% of
Total Investments) | | | |
| 5,480 | Bay Area Governments Association, California, BART
SFO Extension, Airport Premium Fare Revenue | 8/12 at 100.00 | N/R | 4,698,607 |
| | Bonds, Series 2002A,
5.000%, 8/01/26 – AMBAC Insured | | | |
| 2,000 | Foothill/Eastern Transportation Corridor Agency,
California, Toll Road Revenue Bonds, Series | 7/10 at 100.00 | BBB– | 1,774,920 |
| | 1995A, 5.000%, 1/01/35 | | | |
| 7,480 | Total
Transportation | | | 6,473,527 |
| | U.S. Guaranteed – 19.0% (13.2%
of Total Investments) (4) | | | |
| 1,000 | Berryessa Union School District, Santa Clara County,
California, General Obligation Bonds, | 8/12 at 100.00 | AAA | 1,094,130 |
| | Series 2003C, 5.000%,
8/01/21 (Pre-refunded 8/01/12) – AGM Insured | | | |
| | California State, General Obligation Bonds, Series
2002: | | | |
| 1,290 | 5.000%, 4/01/27
(Pre-refunded 4/01/12) – AMBAC Insured | 4/12 at 100.00 | AAA | 1,394,413 |
| 2,945 | 5.250%, 4/01/30
(Pre-refunded 4/01/12) – SYNCORA GTY Insured | 4/12 at 100.00 | A1 (4) | 3,196,827 |
| 500 | California, General Obligation Bonds, Series 2004,
5.250%, 4/01/34 (Pre-refunded 4/01/14) | 4/14 at 100.00 | AAA | 576,205 |
| 1,625 | Golden State Tobacco Securitization Corporation,
California, Tobacco Settlement Asset-Backed | 6/13 at 100.00 | AAA | 1,937,163 |
| | Revenue Bonds, Series
2003A-2, 7.900%, 6/01/42 (Pre-refunded 6/01/13) | | | |
| 2,030 | Hacienda La Puente Unified School District, Los
Angeles County, California, General Obligation | 8/13 at 100.00 | AAA | 2,288,886 |
| | Bonds, Series 2003B,
5.000%, 8/01/27 (Pre-refunded 8/01/13) – AGM Insured | | | |
| 1,260 | Rancho Mirage Joint Powers Financing Authority,
California, Revenue Bonds, Eisenhower Medical | 7/14 at 100.00 | A3 (4) | 1,488,136 |
| | Center, Series 2004,
5.875%, 7/01/26 (Pre-refunded 7/01/14) | | | |
| 1,220 | San Jose Redevelopment Agency, California, Tax
Allocation Bonds, Merged Area Redevelopment | 8/10 at 101.00 | A (4) | 1,242,204 |
| | Project, Series 2002,
5.000%, 8/01/32 (Pre-refunded 8/01/10) – NPFG Insured | | | |
| 2,390 | Solano County, California, Certificates of
Participation, Series 2002, 5.250%, 11/01/24 | 11/12 at 100.00 | AA– (4) | 2,638,273 |
| | (Pre-refunded 11/01/12) – NPFG Insured | | | |
| 14,260 | Total U.S.
Guaranteed | | | 15,856,237 |
| | Utilities – 3.1% (2.1% of Total
Investments) | | | |
| 1,000 | Anaheim Public Finance Authority, California, Second
Lien Electric Distribution Revenue Bonds, | 10/14 at 100.00 | A+ | 1,067,170 |
| | Series 2004, 5.250%,
10/01/21 – NPFG Insured | | | |
| 945 | Long Beach Bond Finance Authority, California,
Natural Gas Purchase Revenue Bonds, Series | No Opt. Call | A | 927,905 |
| | 2007A, 5.500%,
11/15/37 | | | |
| 275 | Los Angeles Department of Water and Power,
California, Power System Revenue Bonds, Series | 7/13 at 100.00 | AA– | 297,382 |
| | 2003A-2, 5.000%, 7/01/21 –
NPFG Insured | | | |
| 310 | Merced Irrigation District, California, Electric
System Revenue Bonds, Series 2005, 5.125%, | 9/15 at 100.00 | N/R | 288,892 |
| | 9/01/31 – SYNCORA GTY Insured | | | |
| 2,530 | Total
Utilities | | | 2,581,349 |
| | Water and Sewer – 13.8% (9.6%
of Total Investments) | | | |
| 1,000 | Castaic Lake Water Agency, California, Certificates
of Participation, Series 2006C, 5.000%, | 8/16 at 100.00 | AA– | 1,004,680 |
| | 8/01/36 – NPFG
Insured | | | |
| 750 | Fortuna Public Finance Authority, California, Water
Revenue Bonds, Series 2006, 5.000%, | 10/16 at 100.00 | AAA | 753,593 |
| | 10/01/36 – AGM
Insured | | | |
| 215 | Healdsburg Public Financing Authority, California,
Wastewater Revenue Bonds, Series 2006, | 4/16 at 100.00 | AA– | 216,284 |
| | 5.000%, 4/01/36 – NPFG
Insured | | | |
| 770 | Manteca Financing Authority, California, Sewerage
Revenue Bonds, Series 2003B, 5.000%, | 12/13 at 100.00 | Aa3 | 752,098 |
| | 12/01/33 – NPFG
Insured | | | |
| 170 | Marina Coast Water District, California, Enterprise
Certificate of Participation, Series 2006, | 6/16 at 100.00 | A+ | 171,756 |
| | 5.000%, 6/01/31 – NPFG
Insured | | | |
| | San Diego Public Facilities Financing Authority,
California, Subordinate Lien Water Revenue | | | |
| | Bonds, Series 2002: | | | |
| 3,000 | 5.000%, 8/01/22 – NPFG
Insured | 8/12 at 100.00 | Aa3 | 3,144,030 |
| 2,500 | 5.000%, 8/01/23 – NPFG
Insured | 8/12 at 100.00 | Aa3 | 2,601,950 |
| 1,180 | South Feather Water and Power Agency, California,
Water Revenue Certificates of Participation, | 4/13 at 100.00 | A | 1,190,573 |
| | Solar Photovoltaic Project,
Series 2003, 5.375%, 4/01/24 | | | |
| 1,600 | Sunnyvale Financing Authority, California, Water and
Wastewater Revenue Bonds, Series 2001, | 10/11 at 100.00 | AAA | 1,647,152 |
| | 5.000%, 10/01/26 – AMBAC Insured | | | |
| 11,185 | Total Water
and Sewer | | | 11,482,116 |
| $ 131,117 | Total
Investments (cost $119,695,844) – 144.2% | | | 120,140,312 |
| | Floating
Rate Obligations – (4.0)% | | | (3,360,000) |
| | Variable
Rate Demand Preferred Shares, at Liquidation Value – (42.6)% (5) | | | (35,500,000) |
| | Other
Assets Less Liabilities – 2.4% | | | 2,042,373 |
| | Net Assets
Applicable to Common Shares – 100% | | | $
83,322,685 |

Fair Value Measurements

In determining the value of the Fund’s investments, various inputs are used. These inputs are summarized in the three broad levels listed below:

Level 1 - Quoted prices in active markets for identical securities.

Level 2 - Other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).

Level 3 - Significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The inputs or methodologies used for valuing securities are not an indication of the risk associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of May 31, 2010:

	Level 1	Level 2	Level 3	Total
Investments:
Municipal Bonds	$
—	$120,140,312	$
—	$120,140,312

Income Tax Information

The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing taxable market discount, timing differences in recognizing certain gains and losses on investment transactions and the treatment of investments in inverse floating rate securities reflected as financing transactions, if any. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset value of the Fund.

At May 31, 2010, the cost of investments was $116,280,035.

Gross unrealized appreciation and gross unrealized depreciation of investments at May 31, 2010, were as follows:

| Gross
unrealized: | |
| --- | --- |
| Appreciation | $ 3,904,157 |
| Depreciation | (3,401,444) |
| Net
unrealized appreciation (depreciation) of investments | $
502,713 |

| | The Fund intends to invest at least 80% of its net
assets in municipal securities that are covered by |
| --- | --- |
| | insurance guaranteeing the timely payment of
principal and interest. |
| (1) | All percentages shown in the Portfolio of
Investments are based on net assets applicable to Common |
| | shares unless otherwise noted. |
| (2) | Optional Call Provisions: Dates (month and year) and
prices of the earliest optional call or redemption. |
| | There may be other call provisions at varying prices
at later dates. Certain mortgage-backed securities |
| | may be subject to periodic principal
paydowns. |
| (3) | Ratings: Using the highest of Standard & Poor’s
Group (“Standard & Poor’s”), Moody’s Investor Service,
Inc. |
| | (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. Ratings
below BBB by Standard & Poor’s, Baa by Moody’s or BBB |
| | by Fitch are considered to be below investment
grade. |
| (4) | Backed by an escrow or trust containing sufficient
U.S. Government or U.S. Government agency securities, |
| | which ensure the timely payment of principal and
interest. Such investments are normally considered to |
| | be equivalent to AAA rated securities. |
| (5) | Variable Rate Demand Shares, at Liquidation Value as
a percentage of Total Investments is 29.6%. |
| N/R | Not rated. |
| WI/DD | Purchased on a when-issued or delayed delivery
basis. |
| (IF) | Inverse floating rate investment. |
| (UB) | Underlying bond of an inverse floating rate trust
reflected as a financing
transaction. |

Item 2. Controls and Procedures.

a. The registrant's principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act") (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).

b. There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: See EX-99 CERT attached hereto.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant) Nuveen Insured California Tax-Free Advantage Municipal Fund

By (Signature and Title) /s/ Kevin J. McCarthy

Kevin J. McCarthy

Vice President and Secretary

Date July 30, 2010

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title) /s/ Gifford R. Zimmerman

Gifford R. Zimmerman

Chief Administrative Officer (principal executive officer)

Date July 30, 2010

By (Signature and Title) /s/ Stephen D. Foy

Stephen D. Foy

Vice President and Controller (principal financial officer)

Date July 30, 2010