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

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number:   811-07090      

BlackRock California Insured Municipal 2008 Term Trust, Inc. 
(Exact name of registrant as specified in charter) 


100 Bellevue Parkway, Wilmington, DE   19809 
(Address of principal executive offices)  (Zip code) 


Robert S. Kapito, President
BlackRock California Insured Municipal 2008 Term Trust, Inc. 
40 East 52nd Street, New York, NY 10022
(Name and address of agent for service)

Registrant’s telephone number, including area code:  888-825-2257               

Date of fiscal year end:       December 31, 2007
Date of reporting period:
    March 31, 2007


Item 1. Schedule of Investments.
The Registrant’s unaudited schedule of investments as of the close of the reporting period pursuant to Rule 30b1-5 under the Investment Company Act of 1940 is as follows:

PORTFOLIO OF INVESTMENTS (unaudited)
MARCH 31, 2007

BlackRock California Insured Municipal 2008 Term Trust (BFC)

 



(Percentages shown are based on Net Assets) 
  Principal              
  Amount       Option Call      
  (000)
 
 
Description Provisions1
 
Value
    LONG-TERM INVESTMENTS—87.1%         
    California—77.2%         
$
1,060 
    Anaheim Union High Sch. Dist., Sch. Impvts. Ad Valorem Ppty. Tax GO, Ser. A, 3.50%,         
       8/01/08, FSA  No Opt. Call   
$
1,060,244 
    California,         
3,000 
       Pub. Impvts. GO, 5.50%, 2/01/10, MBIA  No Opt. Call      3,154,710 
15,000 
       Pub. Impvts. Misc. GO, 6.30%, 9/01/08, MBIA  No Opt. Call      15,561,300 
2,000 
       Recreational Fac. Impvts. Ad Valorem Ppty. Tax GO, 6.25%, 9/01/08, FGIC  No Opt. Call      2,073,480 
3,000 
       Sch. Impvts. Misc. GO, 5.50%, 4/01/09, MBIA  No Opt. Call      3,113,910 
2,600 
    Castaic Lake Wtr. Agcy., Non-Terminable Lease COP, Wtr. Sys. Impvt. Proj., Ser. A,         
       7.25%, 8/01/10, MBIA  No Opt. Call      2,888,548 
1,000 
    City of Chula Vista, Pub. Impvts. Lease Abatement COP, Police Fac. Proj., 4.00%, 8/01/08,         
       MBIA  No Opt. Call      1,005,780 
5,500 
2   Clovis Unified Sch. Dist., Sch. Impvts. Ad Valorem Ppty. Tax GO, Ser. B, Zero Coupon,         
       8/01/08, FGIC  ETM      5,238,475 
2,635 
    Cnty. of Alameda, Lease Approp. COP, Ser. A, 3.80%, 12/01/08, MBIA  No Opt. Call      2,645,830 
11,000 
    Cnty. of San Diego, Lease Abatement COP, 5.625%, 9/01/12, AMBAC  No Opt. Call      11,526,680 
7,500 
    Dept. of Wtr. Recs., Cash Flow Mgmt. Elec., Pwr. & Lt. RB, Ser. A, 3.125%, 5/01/08, FSA  No Opt. Call      7,467,300 
1,855 
    El Paso de Robles, Pub. Impvts. Ad Valorem Ppty. Tax GO, Ser. A, Zero Coupon, 8/01/09,         
       FGIC  No Opt. Call      1,701,963 
4,025 
    Elsinore Valley Mun. Wtr. Dist., Non-Terminable Lease COP, Ser. A, 6.00%, 7/01/09,         
       FGIC  No Opt. Call      4,181,653 
2,000 
    Hlth. Facs. Fing. Auth., Hlth., Hosp. & Nusing Home RB, Sutter Hlth. Care Sys. Proj.,         
       5.70%, 8/15/09, MBIA  04/07 @ 102      2,042,940 
1,245 
    Long Beach Brd. of Fin. Auth., Cash Flow Mgmt. TA, Redev. Proj., 3.50%, 8/01/08,         
       AMBAC  No Opt. Call      1,244,477 
    Los Angeles Cnty. Cap. Asset Leasing Corp., Lease Abatement RB,         
2,910 
       5.95%, 12/01/07, AMBAC  No Opt. Call      2,954,552 
8,090 
       6.00%, 12/01/08, AMBAC  No Opt. Call      8,402,759 
8,600 
       6.05%, 12/01/09, AMBAC  No Opt. Call      9,133,888 
4,405 
    Los Angeles Cnty. Met. Transp. Auth., Spl. Assmt. RB, Spl. Benefit Assmt. Dist. A1 Proj.,         
       3.75%, 9/01/08, AMBAC  No Opt. Call      4,418,215 
2,660 
2   Los Angeles Unified Sch. Dist., Sch. Impvts. Lease Abatement COP, Ser. B, 3.00%,         
       10/01/08, FSA  ETM      2,628,053 
1,000 
    Mount Diablo Unified Sch. Dist., Sch. Impvts. Ad Valorem Ppty. Tax GO, 3.50%, 8/01/08,         
       FSA  No Opt. Call      1,000,230 
1,000 
    Orange Cnty. Local Transp. Auth., Misc. Sales Tax RB, 6.00%, 2/15/09, MBIA  No Opt. Call      1,044,390 
2,495 
2   Pasadena Unified Sch. Dist., Sch. Impvts. Ad Valorem Ppty. Tax GO, Ser. C, 3.50%,         
       11/01/08, FSA  ETM      2,491,133 
2,100 
    Pub. Wks. Brd., Elec., Pwr. & Lt. Impvts. Misc. RB, Energy Efficiency Proj., Ser. A,         
       5.625%, 10/01/08, AMBAC  04/07 @ 101      2,121,000 
3,345 
    Sacramento City Fing. Auth., Pub. Impvts. Lease Abatement RB, City Hall & Redev.         
       Projs., Ser. A, 3.50%, 12/01/08, FSA  No Opt. Call      3,339,514 
    Sacramento Mun. Util. Dist.,         
3,750 
2      Elec., Pwr. & Lt. RB, Ser. C, 5.75%, 11/15/08, FGIC  ETM      3,783,713 
2,950 
2      Elec., Pwr. & Lt. RB, Ser. C, 5.75%, 11/15/09, MBIA  ETM      2,955,192 
825 
2      Swr. RB, Ser. C, 5.75%, 11/15/07, MBIA  ETM      832,664 
3,855 
2   San Bernardino Cnty. Transp. Auth., Hwy. Impvts. Sales Tax RB, 6.00%, 3/01/10, FGIC  ETM      4,006,116 
    San Diego Cnty. Regl. Transp. Comm., Hwy. Impvts. Sales Tax RB,         
4,030 
2      Ser. A, 6.00%, 4/01/08, MBIA  ETM      4,070,582 
1,285 
2      Ser. A, 6.00%, 4/01/08, FGIC  ETM      1,297,940 
1,000 
    San Mateo Cnty. Cmnty. Coll. Dist., Univ. & Coll. Impvts. Ad Valorem Ppty. Tax GO, Ser.         
       A, 3.30%, 9/01/08, FGIC  No Opt. Call      997,290 
    Santa Ana Unified Sch. Dist., Sch. Impvts. Ad Valorem Ppty. Tax GO,         
1,000 
       Ser. B, Zero Coupon, 8/01/08, FGIC  No Opt. Call      952,530 
2,000 
       Ser. B, Zero Coupon, 8/01/09, FGIC  No Opt. Call      1,835,000 
            123,172,051 
    Puerto Rico—9.9%         
    Elec. Pwr. Auth., Elec., Pwr. & Lt. Impvts. RB,         
5,280 
       Ser. DD, 5.00%, 7/01/09, FSA  07/08 @ 101.5      5,441,779 

1


BlackRock California Insured Municipal 2008 Term Trust (BFC) (continued)

 



(Percentages shown are based on Net Assets) 
  Principal            
  Amount       Option Call      
  (000)  
 
 Description
Provisions1  
 
Value
        Puerto Rico—(cont'd)         
  $ 6,000         Ser. DD, 5.00%, 7/01/10, FSA  07/08 @ 101.5     
$
6,187,740 
  4,000      Mun. Fin. Agcy., Cash Flow Mgmt. Ad Valorem Ppty. Tax GO, Ser. A, 5.625%, 8/01/10,         
           FSA  08/09 @ 101      4,217,440 
                15,846,959 
      Total Long-Term Investments (cost $135,500,049)        139,019,010 
 
Shares 
             
  (000)               
        MONEY MARKET FUNDS—12.6%         
  14,050      AIM Tax Free Cash Res. Portfolio - Institutional Class, 3.45%  N/A      14,050,000 
  6,100      SSgA Tax Free Money Mkt. Fund - Class A, 3.06%  N/A      6,100,000 
        Total Short-Term Investments (cost $20,150,000)        20,150,000 
        Total Investments —99.7% (cost $155,650,0493)        $ 159,169,010 
        Other assets in excess of liabilities —0.3%        497,880 
        Net Assets Applicable to Common Shareholders—100%        $ 159,666,890 

  _________________
1      Date (month/year) and price of the earliest optional call or redemption. There may be other call provisions at varying prices at later dates.
2      Security is collateralized by Municipal or U.S. Treasury obligations.
3      Cost for federal income tax purposes is $155,596,683. The net unrealized appreciation on a tax basis is $3,572,327, consisting of $3,668,661 gross unrealized appreciation and $96,334 gross unrealized depreciation.
   
  The value (market value plus accrued interest) of securities that are covered by insurance, which ensures the payment of principal and interest, represent approximately 100.8% of the Trust's managed assets.
 

  AMBAC 
— 25.3% 
  FGIC 
— 16.5% 
  FSA 
— 21.4% 
  MBIA 
— 25.0% 
  Other 
— 12.6% 

KEY TO ABBREVIATIONS 
AMBAC  — American Municipal Bond Assurance Corp.  GO  — General Obligation 
COP  — Certificate of Participation  MBIA  — Municipal Bond Insurance Assoc. 
ETM  — Escrowed to Maturity  RB  — Revenue Bond 
FGIC  — Financial Guaranty Insurance Co.  TA  — Tax Allocation 
FSA  — Financial Security Assurance     

2


Item 2. Controls and Procedures.

(a) The Registrant’s principal executive and principal financial officers have evaluated the Registrant’s disclosure controls and procedures within 90 days of this filing and have concluded, as of that date, that the Registrant’s disclosure controls and procedures were reasonably designed to ensure that information required to be disclosed by the Registrant in this Form N-Q was recorded, processed, summarized, and reported within the required time periods and that information to be disclosed by the Registrant in this Form N-Q was accumulated and communicated to the Registrant’s management, including its principal executive and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure.

(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.

Separate certifications of the Registrant’s Principal Executive and Financial Officers pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 are attached as EX-99.CERT.


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)    BlackRock California Insured Municipal 2008 Term Trust, Inc.     

By:   /s/ Donald C. Burke
Name: Donald C. Burke 
Title: Treasurer and Principal Financial Officer 
Date: May 25, 2007 

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:   /s/ Robert S. Kapito
Name: Robert S. Kapito
Title: President and Principal Executive Officer
Date: May 25, 2007

 

By:   /s/ Donald C. Burke
Name: Donald C. Burke
Title: Treasurer and Principal Financial Officer
Date: May 25, 2007