ZENITH NATIONAL INSURANCE CORP
10-Q, 1998-11-13
FIRE, MARINE & CASUALTY INSURANCE
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<PAGE>


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                    FORM 10-Q


              QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
                        SECURITIES EXCHANGE ACT OF 1934

                For the quarterly period ended September 30, 1998


                          Commission File Number 1-9627



                         ZENITH NATIONAL INSURANCE CORP.
             [Exact name of registrant as specified in its charter]


               Delaware                                 95-2702776
      [State or other jurisdiction of                [I.R.S. Employer
       incorporation or organization]               Identification No.]


21255 Califa Street, Woodland Hills, California         91367-5021
   [Address of principal executive offices]             [Zip Code]

                                 (818) 713-1000
              [Registrant's telephone number, including area code]


Indicate by check mark whether the registrant [1] has filed all reports 
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the 
registrant was required to file such reports), and [2] has been subject to 
such filing requirements for the past 90 days.

                                Yes [ X ] No [ ]


Number of shares of Common Stock, $1 par value per share, outstanding as of 
close of business on October 31, 1998: 17,043,064, net of 7,821,770 shares of 
treasury stock.

                                       1

<PAGE>

                          PART 1, FINANCIAL INFORMATION
                          ITEM 1. FINANCIAL STATEMENTS

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------
                                                                                      September 30,   December 31,
(In thousands, except per share data)                                                      1998           1997
- ------------------------------------------------------------------------------------------------------------------
                                                                                       (Unaudited)
<S>                                                                                   <C>             <C>
ASSETS:
Investments:
   Fixed maturities:
      At amortized cost (fair value $40,100 in 1998 and $48,266 in 1997)              $    38,395       $   46,948
      At fair value (cost $711,519 in 1998 and $534,771 in 1997)                          727,028          542,479
   Floating rate preferred stocks, at fair value (cost $16,614 in 1998 and                 
       $14,614 in 1997)                                                                    17,887           15,670
   Convertible and non-redeemable preferred stocks, at fair value (cost
      $7,679 in 1998 and 6,672 in 1997)                                                     7,216            6,602
   Common stocks, at fair value (cost $30,233 in 1998 and $17,790 in 1997)                 30,996           23,439
   Short-term investments (at cost, which approximates fair value)                        225,659          209,827
   Other investments                                                                       39,668           35,008
                                                                                        ---------        ----------

        Total Investments                                                               1,086,849          879,973

Cash (restricted cash $3,054 in 1998 and $5,524 in 1997)                                    8,581           12,504
Accrued investment income                                                                  13,998            9,523
Premiums receivable                                                                       116,380           72,813
Receivable from reinsurers, state trust funds and prepaid reinsurance
   premiums                                                                               482,729          106,067
Deferred policy acquisition costs                                                          21,885           20,840
Properties and equipment, less accumulated depreciation                                    79,592           54,531
Federal income taxes                                                                       36,034           19,940
Intangible assets                                                                          83,438            9,600
Other assets                                                                               78,573           66,365
                                                                                        ---------        ----------
        TOTAL ASSETS                                                                  $ 2,008,059       $1,252,156
                                                                                        ---------        ----------
                                                                                        ---------        ----------
</TABLE>


(continued)
                                      2
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                     CONSOLIDATED BALANCE SHEET (CONTINUED)

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                September 30,     December 31,
(In thousands, except per share data)                                                                1998            1997
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                 (Unaudited)
<S>                                                                                              <C>               <C>
LIABILITIES:
Policy liabilities and accruals:
    Unpaid loss and loss adjustment expenses                                                     $ 1,209,505       $  613,266
    Unearned premiums                                                                                168,394          128,469
Policyholders' dividends accrued                                                                       7,554            5,360
Other policyholder funds                                                                                                6,407
Reserves on loss portfolio transfers                                                                   9,911           11,054
Payable to banks and other notes payable                                                              10,816           13,742
Senior notes payable, less unamortized issue costs of $435 in 1998 and
    $526 in 1997                                                                                      74,565           74,474
Other liabilities                                                                                    104,543           37,518
                                                                                                  -----------        --------
         TOTAL LIABILITIES                                                                         1,585,288          890,290
                                                                                                  -----------        --------

REDEEMABLE SECURITIES:
Company-obligated, mandatorily redeemable capital securities of Zenith
   National Insurance Capital Trust I, holding solely 8.55% Subordinated
   Deferrable Interest Debentures due 2028, of Zenith National Insurance
   Corp., less unamortized issue cost and discount of $1,672 in 1998                                  73,328
                                                                                                   ----------        --------
STOCKHOLDERS' EQUITY:
Preferred stock, $1 par - shares authorized 1,000; issued and outstanding,
   none in 1998 and 1997 
Common stock, $1 par - shares authorized 50,000; issued 24,865, 
   outstanding 17,043 in 1998, issued 24,681, outstanding 17,819 in 1997                              24,865           24,681
Additional paid-in capital                                                                           268,375          264,098
Retained earnings                                                                                    191,680          186,268
Net unrealized appreciation on investments, net of deferred tax expense of
   $5,955 in 1998 and $5,025 in 1997                                                                  11,059            9,332
                                                                                                   ----------       ----------
                                                                                                     495,979          484,379
Less treasury stock, at cost (7,822 shares in 1998 and 6,862 shares in 1997)                        (146,536)        (122,513)
                                                                                                  ----------       ----------
        TOTAL STOCKHOLDERS' EQUITY                                                                   349,443          361,866
                                                                                                  ----------       ----------
      TOTAL LIABILITIES, REDEEMABLE SECURITIES AND
        STOCKHOLDERS' EQUITY                                                                      $2,008,059       $1,252,156
                                                                                                  ----------       ----------
                                                                                                  ----------       ----------
</TABLE>


The accompayning notes are an integral part of this statement.


                                      3
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENT OF OPERATIONS
                                   (UNAUDITED)

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------
                                                         Three Months Ended            Nine Months Ended
                                                            September 30,                September 30,
(In thousands, except per share data)                   1998           1997           1998           1997
- -----------------------------------------------------------------------------------------------------------
<S>                                                   <C>            <C>            <C>            <C>
CONSOLIDATED REVENUES:
Premiums earned                                       $136,151       $120,475       $392,489       $368,669
Net investment income                                   15,194         13,272         42,108         39,126
Realized gains on investments                            2,164          1,861          8,338          5,733
Real estate sales                                        8,398         11,480         28,830         32,617
Service fee income                                       1,206                         2,598
                                                       --------       --------       --------       --------
        Total revenues                                 163,113        147,088        474,363        446,145
EXPENSES:
Loss and loss adjustment expenses incurred             101,690         81,104        280,199        258,051
Policy acquisition costs                                25,707         22,834         74,696         69,196
Other underwriting and operating expenses               19,233         17,902         58,076         49,521
Policyholders' dividends and participation                 441            533            378           (433)
Real estate construction and operating costs             8,210         11,225         28,248         31,424
Amortization of provisional goodwill                       765                         1,530
Interest expense                                         1,908            980          3,416          2,932
                                                       --------       --------       --------       --------
        Total expenses                                 157,954        134,578        446,543        410,691

Income before federal income tax expense                 5,159         12,510         27,820         35,454

Federal income tax expense                               1,659          4,510          9,620         12,454
                                                       --------       --------       --------       --------
        NET INCOME                                    $  3,500       $  8,000       $ 18,200       $ 23,000
                                                       --------       --------       --------       --------
                                                       --------       --------       --------       --------
EARNINGS PER SHARE:
Net income per common share - basic                   $   0.21       $   0.45       $   1.07       $   1.30
                                                       --------       --------       --------       --------
                                                       --------       --------       --------       --------
Net income per common share - diluted                 $   0.20       $   0.45       $   1.06       $   1.29
                                                       --------       --------       --------       --------
                                                       --------       --------       --------       --------
Additional Required Disclosure
Net income                                            $  3,500       $  8,000       $ 18,200       $ 23,000
Change in unrealized appreciation on investments           925          8,539          1,727          8,629
                                                       --------       --------       --------       --------
Comprehensive Income                                  $  4,425       $ 16,539       $ 19,927       $ 31,629
                                                       --------       --------       --------       --------
                                                       --------       --------       --------       --------
</TABLE>


The accompanying notes are an integral part of this statement.


                                      4
<PAGE>

                   ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                         CONSOLIDATED STATEMENT OF CASH FLOWS
                                 (UNAUDITED)

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------
                                                                                          Nine Months Ended
                                                                                           September 30,
 (In thousands)                                                                         1998             1997
- ---------------------------------------------------------------------------------------------------------------
<S>                                                                                  <C>             <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Premiums collected                                                                   $ 431,867       $ 393,281
Investment income received                                                              40,379          37,612
Proceeds from sales of real estate                                                      28,830          32,617
Loss and loss adjustment expenses paid                                                (299,178)       (256,326)
Underwriting and other operating expenses paid                                        (145,420)       (121,799)
Real estate construction costs paid                                                    (35,665)        (36,612)
Reinsurance premiums paid                                                              (24,451)        (20,964)
Interest paid                                                                           (3,706)         (3,185)
Income taxes paid                                                                       (5,352)         (4,497)
Net proceeds from sales of trading portfolio investments                                                 1,416
                                                                                      --------        --------
        Net cash (used in) provided by operating activities                            (12,696)         21,543

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of investments:
   Investment securities available-for-sale                                           (252,200)        (61,985)
   Other investments                                                                    (7,008)         (4,146)
Proceeds from maturities and redemptions of investments:
   Fixed maturities held-to-maturity                                                     8,379           4,290
   Investment securities available-for-sale                                             55,073          22,204
   Other investments                                                                                     3,452
Proceeds from sales of investments:
   Investment securities available-for-sale                                            210,448          74,454
   Other investments                                                                     6,182           5,295
Net change in short-term investments                                                   (13,462)        (45,800)
Capital expenditures and other, net                                                     (8,325)         (7,525)
                                                                                      --------        --------
        Net cash used in investing activities                                             (913)         (9,761)

CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of note assumed from RISCORP                                                 (15,000)
Cash payment to RISCORP                                                                (35,000)
RISCORP acquisition costs                                                               (7,660)         (1,291)
Cash acquired in RISCORP Acquisition                                                    29,553 
Net cash received from Zenith National Insurance Capital Trust I 8.55%
   Capital Securities                                                                   73,320 
Cash advanced from bank construction loans                                              23,015          29,751
Cash repaid on bank construction loans                                                 (25,941)        (30,411)
Cash advanced from bank lines of credit                                                  2,000  
Cash repaid on bank lines of credit                                                     (2,000) 
Cash dividends paid to common stockholders                                             (12,739)        (13,275)
Proceeds from exercise of stock options                                                  4,161           3,919
Purchase of treasury shares                                                            (24,023)           (285)
                                                                                      --------        --------
        Net cash provided by (used in) financing activities                              9,686         (11,592)
                                                                                      --------        --------
Net (decrease) increase in cash                                                         (3,923)            190
Cash at beginning of period                                                             12,504          12,125
                                                                                      --------        --------
        Cash at end of period                                                        $   8,581       $  12,315
                                                                                      --------        --------
                                                                                      --------        --------
</TABLE>


(continued)
                                      5
<PAGE>

               ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
               CONSOLIDATED STATEMENT OF CASH FLOWS (CONTINUED)
                                 (UNAUDITED)

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------
                                                                        Nine Months Ended
                                                                          September 30,
 (In thousands)                                                        1998           1997
- --------------------------------------------------------------------------------------------
<S>                                                                  <C>            <C>
RECONCILIATION OF NET INCOME TO NET CASH FLOWS
   FROM OPERATING ACTIVITIES:
Net Income                                                           $ 18,200       $23,000
Adjustments to reconcile net income to net cash
   provided by (used in) operating activities:
      Depreciation and amortization                                     7,866         4,391
      Realized gains on investments                                    (8,338)       (5,733)
      Net proceeds from trading portfolio                                             1,416
Decrease (increase) in:
   Accrued investment income                                           (1,334)       (1,260)
   Premiums receivable                                                 21,971        (3,851)
   Receivable from reinsurers, state trust funds and prepaid
      reinsurance premiums                                             29,132         1,821
   Deposit receivable                                                                 2,066
   Deferred policy acquisition costs                                   (7,362)       (1,377)
   Federal income taxes                                                 4,095         7,967
   Real estate construction in progress                                (9,496)       (7,045)
Increase (decrease) in:
   Unpaid loss and loss adjustment expenses                           (59,970)         (682)
   Unearned premiums                                                   (3,252)       11,140
   Other policyholder funds                                            (6,407)       (2,707)
   Other                                                                2,199        (7,603)
                                                                      -------        ------
        Net cash (used in) provided by operating activities          $(12,696)      $21,543
                                                                      -------        ------
                                                                      -------        ------
</TABLE>


The accompanying notes are an integral part of this statement.
See Note 3 for non-cash activities related to the RISCORP Acquisition.


                                      6
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)
- --------------------------------------------------------------------------------

Note 1.     Basis of Presentation

In the opinion of management, all adjustments (consisting only of normal 
recurring adjustments) necessary for a fair presentation of the financial 
position and results of operations of Zenith National Insurance Corp. and 
subsidiaries (collectively, "Zenith") for the periods presented have been 
included. The results of operations for an interim period are not necessarily 
indicative of the results for an entire year. Certain prior year balances 
have been reclassified to conform to current year presentation.

The initial recording of the RISCORP Acquisition (see Note 3) is based on a 
purchase price subject to a dispute resolution process. Since this dispute 
resolution process and the valuation of the acquired assets and liabilities 
are continuing, the allocation of the purchase price and the provisional 
goodwill may change materially.

Note 2.     Computation of Earnings Per Share

<TABLE>
<CAPTION>
                                                           Three Months Ended         Nine Months Ended
                                                              September 30,             September 30,
(In thousands, except per share data)                       1998         1997          1998         1997
- --------------------------------------------------------------------------------------------------------
<S>                                                        <C>          <C>         <C>          <C>
(A)         Net income                                     $3,500       $8,000      $18,200      $23,000
- --------------------------------------------------------------------------------------------------------

(B)         Weighted average outstanding
                shares during the period                   17,055       17,725       17,018       17,687
            Additional common shares issuable
                 under employee stock option plans
                 using the treasury stock method (1)          113          193          155          169
- --------------------------------------------------------------------------------------------------------
(C)         Weighted average number of common 
                 shares outstanding assuming
                 exercise of stock options                 17,168       17,918       17,173       17,856
- --------------------------------------------------------------------------------------------------------

(A)/(B)     Net income per common share - basic             $0.21        $0.45        $1.07        $1.30
- --------------------------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------------------------
(A)/(C)     Net income per common share - diluted           $0.20        $0.45        $1.06        $1.29
- --------------------------------------------------------------------------------------------------------
</TABLE>

(1) 1997 per common share data have been restated to conform to the 
provisions of Statement of Financial Accounting Standards ("SFAS") No. 128.


                                      7
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)
- -------------------------------------------------------------------------------

Note 3.     Acquisition of RISCORP

On April 1, 1998, pursuant to an Asset Purchase Agreement dated June 17, 1997 
(as amended from time to time, the "Asset Purchase Agreement") between Zenith 
Insurance Company, a wholly owned subsidiary of Zenith ("Zenith Insurance"), 
and RISCORP, Inc. and certain of its subsidiaries (collectively, "RISCORP"), 
Zenith Insurance acquired substantially all of the assets and certain 
liabilities of RISCORP related to RISCORP's workers' compensation business 
(the "RISCORP Acquisition"). At the closing, Zenith Insurance paid $35 
million in cash, and assumed and repaid $15 million of indebtedness of 
RISCORP, Inc. The final purchase price, which will take into account the $35 
million, is not yet known, is subject to a three-step determination process, 
and will be the difference between the GAAP book value of assets purchased 
and the GAAP book value of the liabilities assumed by Zenith Insurance as of 
April 1, 1998.

As the first step of the three-step process to determine the final purchase 
price, on June 9, 1998, RISCORP provided Zenith Insurance with a "Proposed 
Business Balance Sheet" indicating that RISCORP's determination of the final 
purchase price is approximately $141 million. As the second step of this 
process, on July 9, 1998, Zenith Insurance provided RISCORP with proposed 
adjustments to the Proposed Business Balance Sheet, which adjustments were 
prepared in conjunction with Zenith Insurance's external accounting and 
actuarial consultants. These proposed adjustments resulted in large part from 
differences in the estimation of loss and loss adjustment expense reserves, 
primarily related to differences in actuarial methodology and assumptions, 
including anticipated loss development. As the final step of the price 
determination process, RISCORP and Zenith Insurance have submitted all items 
in dispute concerning the Proposed Business Balance Sheet to a nationally 
recognized independent accounting firm which will serve as the Neutral 
Auditor and Neutral Actuary to resolve all such disputes. On July 24,1998, 
Zenith Insurance submitted to such firm a written analysis in support of its 
proposed adjustments. Such adjustments would indicate that the value of the 
liabilities assumed by Zenith Insurance exceeds the value of the assets 
transferred to Zenith Insurance by as much as $71 million, and that the final 
purchase price will be no greater than the $35 million already paid by Zenith 
Insurance at closing. On July 24, 1998, RISCORP delivered to such firm 
RISCORP's initial submission indicating that its determination of the final 
purchase price is approximately $141 million. On July 31, 1998, Zenith 
Insurance and RISCORP made additional submissions to the Neutral Auditor and 
Neutral Actuary in support of the positions taken by the parties in their 
submissions on July 24, 1998.


                                      8
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)
- -------------------------------------------------------------------------------

The Asset Purchase Agreement originally called for the Neutral Auditor and 
Neutral Actuary to issue a determination on the disputed items within 30 days 
after completion of Zenith Insurance's review of the Proposed Business 
Balance Sheet on July 9, 1998, which would have resulted in a final purchase 
price no later than August 10, 1998. However, pursuant to agreement among 
Zenith Insurance, RISCORP and the Neutral Auditor and Neutral Actuary, the 
determination of the Neutral Auditor and Neutral Actuary is not required to 
be available until 90 days after the Neutral Auditor and Neutral Actuary 
received the submissions made by the parties on July 31, 1998. Also, the 
Neutral Auditor and Neutral Actuary have advised that the availability of the 
determination may be delayed beyond that 90-day period because the Neutral 
Auditor and Neutral Actuary had not received access to certain workpapers as 
of July 31, 1998. On November 10, 1998, RISCORP requested that the Neutral 
Auditor and Neutral Actuary consider additional materials that RISCORP will 
deliver on November 13, 1998, and consideration of these additional materials 
may further delay the availability of the determination by the Neutral 
Auditor and the Neutral Actuary. Zenith cannot predict the outcome of the 
price determination process, and the determination of the Neutral Auditor and 
Neutral Actuary related to the final purchase price will not be known until 
the fourth quarter of 1998 or later. Accordingly, Zenith cannot predict the 
final purchase price at this time.

The RISCORP Acquisition was accounted for as a purchase by Zenith Insurance 
and the assets acquired, liabilities assumed and the results of operations 
from RISCORP at April 1, 1998 are included in Zenith's consolidated balance 
sheet and statement of operations as of and for the quarter ended September 
30, 1998. Because of the considerable uncertainty and possible range of 
outcomes surrounding the determination of the final purchase price, the 
assets acquired and liabilities assumed from RISCORP reflected in Zenith's 
consolidated balance sheet as of September 30, 1998 represent management's 
estimate of their fair values at April 1, 1998, based on currently available 
information and the assumption that the final purchase price will be 
$35 million.

Based on such estimates and the assumption that the final purchase price is 
$35 million, the excess of the purchase price, including acquisition expense, 
over the estimated fair value of net assets is approximately $76 million and 
is being amortized over 25 years. Since the $76 million is based on estimates 
and assumptions, it may materially change upon determination, and adjustment 
of the allocation, of the final purchase price. Estimated amortization 
expense, from April 1, 1998, of $0.8 million and $1.5 million was recorded in 
the three and nine months ended September 30, 1998, respectively.

Evaluation and determination of the acquired assets and assumed liabilities 
are continuing, including: premiums receivable; reinsurance recoverables; 
state disability trust fund recoverable; accrued reinsurance commissions; 
deferred acquisition costs; and unpaid loss and loss adjustment expenses. 
Accordingly, the allocation of the purchase price may be adjusted.

Zenith Insurance has provided notice to RISCORP of certain breaches of 
representations, warranties and covenants made by RISCORP in the Asset 
Purchase Agreement. These breaches may result in recovery by Zenith Insurance 
of a portion of the purchase price otherwise payable by Zenith Insurance. In 
addition, Zenith Insurance believes it is entitled to receive certain assets 
of RISCORP, including security deposits held by state insurance departments, 
that were not transferred to Zenith Insurance at closing.


                                      9
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)
- -------------------------------------------------------------------------------

Zenith Insurance has entered into a binder pending the definitive contract to 
purchase ceded reinsurance protection relating to development of the loss and 
loss adjustment expense reserves assumed from RISCORP.

The following table summarizes the estimated fair value of RISCORP's assets 
acquired and liabilities assumed at April 1, 1998 assuming the Neutral 
Auditor and Neutral Actuary agree with the adjustments proposed by Zenith and 
assuming the final purchase price is $35 million.

<TABLE>
<CAPTION>
(In thousands)                                                 April 1, 1998
- ----------------------------------------------------------------------------
<S>                                                            <C>
Assets
Invested assets, primarily U.S. Government issues                 $201,441
Cash                                                                29,553
Premiums receivable                                                 58,158
Receivable from reinsurers and state trust funds                   355,794
Intangible assets                                                   65,815
Other assets                                                        54,090
- ----------------------------------------------------------------------------
Total assets                                                       764,851
- ----------------------------------------------------------------------------
Liabilities
Unpaid loss and loss adjustment expense                            656,209
Unearned premium reserve                                            43,177
Other liabilities                                                   30,465
- ----------------------------------------------------------------------------
Total liabilities                                                  729,851
- ----------------------------------------------------------------------------
Assumed purchase price                                            $ 35,000
- ----------------------------------------------------------------------------
</TABLE>

Pro forma total revenues for Zenith (after giving effect to the RISCORP 
Acquisition as if it had been consummated at the beginning of the respective 
periods) were approximately $163.1 million and $197.5 million, respectively, 
for the three months ended, and $506.7 million and $604.0 million, 
respectively, for the nine months ended, September 30, 1998 and 1997. Pro 
forma net income was approximately $3.5 million and $10.8 million, 
respectively, for the three months ended, and $6.6 million and $26.7 million, 
respectively, for the nine months ended, September 30, 1998 and 1997. 
Earnings per share were approximately $0.21 (basic) and $0.20 (diluted) and 
$0.61 (basic) and $0.60 (diluted), respectively, for the three months ended, 
and $0.39 (basic) and $0.38 (diluted) and $1.51 (basic) and $1.50 (diluted), 
respectively, for the nine months ended, September 30, 1998 and 1997.

Such pro forma data has been derived in part from the historical statement of 
operations data of RISCORP, Inc. as reported by RISCORP, Inc. for the three 
months ended March 31, 1998 and nine months ended September 30, 1997. Zenith 
specifically disclaims any responsibility for the accuracy or completeness of 
such historical RISCORP, Inc. data or such pro forma data to the extent it is 
based on such historical data. Further, such pro forma data may not 
necessarily be indicative of future total revenues or future net income or 
what they might have been if the RISCORP Acquisition had been consummated at 
the beginning of each of the respective periods.


                                      10
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)
- -------------------------------------------------------------------------------

Note 4.     Comprehensive Income

As of January 1, 1998, Zenith adopted SFAS No. 130 "Reporting Comprehensive 
Income". SFAS No. 130 establishes standards for reporting and presenting 
comprehensive income and its components in a full set of financial 
statements. Comprehensive income includes net income and all changes in 
stockholders' equity (except those arising from transactions with 
stockholders) and changes in net unrealized appreciation (depreciation) on 
investments. The new standard requires only additional disclosures in the 
consolidated financial statements; it does not affect the financial position 
or results of operations.

Note 5.     Costs of Computer Software Developed or Obtained for Internal Use

Zenith adopted Statement of Position ("SOP") 98-1 "Accounting for the Costs 
of Computer Software Developed or Obtained for Internal Use" effective 
January 1, 1998. SOP 98-1 requires capitalization of certain internal and 
external costs associated with computer software developed or obtained for 
internal use. For the three and nine months ended September 30, 1998, 
software capitalization was $3.2 million and $4.8 million, respectively.

Note 6.     New Accounting Pronouncements

In June 1998, the Financial Accounting Standards Board ("FASB") issued SFAS 
No. 133 "Accounting for Derivative Instruments and Hedging Activities". The 
new pronouncement, which is effective for all fiscal quarters beginning after 
June 15, 1999, requires that all companies carry derivatives on the balance 
sheet at fair value. Changes in the fair value of derivatives must be 
recognized in income when they occur, unless the derivative qualifies for 
hedge accounting. Zenith does not currently have any derivatives and 
therefore does not believe that there will be any impact on its financial 
statements as a result of the adoption of SFAS No. 133.

Note 7.     Capital Securities and Subordinated Debentures

On July 30, 1998, Zenith issued $75 million of 8.55% Capital Securities at a 
price of $996.24 per security through the Zenith National Insurance Capital 
Trust I, a Delaware statutory business trust (the "Trust") all of the voting 
securities of which are owned by Zenith. Each Capital Security pays 
semi-annual cumulative cash distributions at the annual rate of 8.55% of the 
$1,000 liquidation amount per security.


                                      11
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)
- -------------------------------------------------------------------------------

The Trust used the proceeds from its offering to purchase $75 million of 
Zenith's 8.55% Subordinated Deferrable Interest Debentures due 2028 (the 
"Subordinated Debentures"), which constitute the principal asset of the 
Trust. The semi-annual interest payments on the Subordinated Debentures may 
be deferred by Zenith for up to ten consecutive semi-annual periods. The 
Subordinated Debentures are redeemable at any time by Zenith at the then 
present value of the remaining scheduled payments of principal and interest. 
Payments on the Capital Securities, including distributions and redemptions, 
follow those of the Subordinated Debentures. Zenith used $65 million from the 
net proceeds to make a capital contribution to Zenith Insurance. The 
remaining net proceeds were used for general corporate purposes. The issue 
cost and discount on the Subordinated Debentures of $1.7 million are being 
amortized over the term of the Subordinated Debentures. During the three 
months and nine months ended September 30, 1998, approximately $9,000 of such 
costs were amortized.

Zenith fully and unconditionally guaranteed the distributions on, and the 
liquidation amount generally of, the Capital Securities to the extent the 
Trust has funds legally available therefor. Zenith's guarantee of the Capital 
Securities, as well as the Subordinated Debentures, are subordinated to all 
other indebtedness of Zenith.

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 
RESULTS  OF OPERATIONS

OVERVIEW

Zenith's principal source of consolidated earnings is the income, including 
investment income, from the operations of its property-casualty insurance 
business. The comparative results of operations are set forth in the table 
below, followed by a discussion of significant changes.

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------
                                                              Three Months Ended        Nine Months Ended
                                                                September 30,             September 30,
(In thousands)                                              1998         1997         1998         1997
- ---------------------------------------------------------------------------------------------------------
<S>                                                       <C>           <C>         <C>           <C>
Investment income, after taxes                            $10,229       $8,799      $28,127       $25,941
Realized gains on investments, after taxes                  1,407        1,209        5,420         3,726
- ---------------------------------------------------------------------------------------------------------
Sub-total                                                  11,636       10,008       33,547        29,667
- ---------------------------------------------------------------------------------------------------------

Property-casualty underwriting loss, after taxes:
     Loss excluding catastrophes                           (3,204)        (677)      (4,547)       (2,606)
     Catastrophe loss                                      (2,600)         (65)      (5,850)         (975)
- ---------------------------------------------------------------------------------------------------------
Property-casualty underwriting loss, after taxes           (5,804)        (742)     (10,397)       (3,581)
- ---------------------------------------------------------------------------------------------------------

Income from real estate operations, after taxes               122          165          378           764
Interest expense, after taxes                              (1,240)        (637)      (2,220)       (1,906)
Parent expenses, after taxes                               (1,214)        (794)      (3,108)       (1,944)
- ---------------------------------------------------------------------------------------------------------
Net income                                                 $3,500       $8,000      $18,200       $23,000
- ---------------------------------------------------------------------------------------------------------
</TABLE>


                                      12
<PAGE>

                    ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

Premiums earned, underwriting results and combined ratios before taxes for 
the three and nine months ended September 30, 1998 and 1997 were as follows:

<TABLE>
<CAPTION>
                                                            Three Months Ended                 Nine Months Ended
                                                               September 30,                     September 30,
(Dollars in thousands)                                     1998             1997             1998             1997
- ----------------------------------------------------------------------------------------------------------------------
<S>                                                      <C>              <C>              <C>               <C>
Premiums earned:
   Workers' compensation
      California                                         $ 31,157         $ 31,283         $ 91,601          $100,520 
      Outside California                                   41,024           27,475          110,582            81,861 
                                                         -------------------------------------------------------------
        Total workers' compensation                        72,181           58,758          202,183           182,381 
   Other property-casualty                                 56,162           53,273          167,317           160,748 
   Reinsurance                                              7,808            8,444           22,989            25,540 
                                                         -------------------------------------------------------------
          Total                                          $136,151         $120,475         $392,489          $368,669 
                                                         -------------------------------------------------------------
                                                         -------------------------------------------------------------
Underwriting income (loss) before taxes:
   Workers' compensation                                 $(13,154)        $ (6,245)        $(29,331)         $(19,003)
   Other property-casualty                                  3,165            2,246            4,916             4,882 
   Reinsurance                                              1,070            3,004            8,963             9,005 
                                                         -------------------------------------------------------------
          Total                                          $ (8,919)        $   (995)        $(15,452)         $ (5,116)
                                                         -------------------------------------------------------------
                                                         -------------------------------------------------------------
Combined loss and expense ratios:
   Workers' compensation
      Loss and loss adjustment expenses                      83.5%            75.7%            78.9%             77.3%
      Underwriting expenses                                  34.1%            34.0%            35.4%             33.1%
      Dividends to policyholders                              0.6%             0.9%             0.2%
                                                         -------------------------------------------------------------
          Combined ratio                                    118.2%           110.6%           114.5%            110.4%
   Other property-casualty
      Loss and loss adjustment expenses                      64.3%            63.5%            66.2%             65.9%
      Underwriting expenses                                  30.1%            32.3%            30.9%             31.1%
                                                         -------------------------------------------------------------
          Combined ratio                                     94.4%            95.8%            97.1%             97.0%
   Reinsurance
      Loss and loss adjustment expenses                      67.5%            33.3%            42.4%             43.9%
      Underwriting expenses                                  18.8%            31.1%            18.6%             20.9%
                                                         -------------------------------------------------------------
          Combined ratio                                     86.3%            64.4%            61.0%             64.8%
Total property-casualty
   Loss and loss adjustment expenses                         74.7%            67.3%            71.3%             70.0%
   Underwriting expenses                                     31.6%            33.1%            32.5%             31.4%
   Dividends to policyholders                                 0.3%             0.4%             0.1%
                                                         -------------------------------------------------------------
          Combined ratio                                    106.6%           100.8%           103.9%            101.4%
                                                         -------------------------------------------------------------
                                                         -------------------------------------------------------------
</TABLE>


                                      13
<PAGE>

               ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

RISCORP ACQUISITION

On April 1, 1998, pursuant to an Asset Purchase Agreement dated June 17, 1997 
(as amended from time to time, the "Asset Purchase Agreement") between Zenith 
Insurance Company, a wholly owned subsidiary of Zenith ("Zenith Insurance"), 
and RISCORP, Inc. and certain of its subsidiaries (collectively, "RISCORP"), 
Zenith Insurance acquired substantially all of the assets and certain 
liabilities of RISCORP related to RISCORP's workers' compensation business 
(the "RISCORP Acquisition"). At the closing, Zenith Insurance paid $35 
million in cash, and assumed and repaid $15 million of indebtedness of 
RISCORP, Inc. The final purchase price, which will take into account the $35 
million, is not yet known, is subject to a three-step determination process, 
and will be the difference between the GAAP book value of assets purchased 
and the GAAP book value of the liabilities assumed by Zenith Insurance as of 
April 1, 1998.

As the first step of the three-step process to determine the final purchase 
price, on June 9, 1998, RISCORP provided Zenith Insurance with a "Proposed 
Business Balance Sheet" indicating that RISCORP's determination of the final 
purchase price is approximately $141 million. As the second step of this 
process, on July 9, 1998, Zenith Insurance provided RISCORP with proposed 
adjustments to the Proposed Business Balance Sheet, which adjustments were 
prepared in conjunction with Zenith Insurance's external accounting and 
actuarial consultants. These proposed adjustments resulted in large part from 
differences in the estimation of loss and loss adjustment expense reserves, 
primarily related to differences in actuarial methodology and assumptions, 
including anticipated loss development. As the final step of the price 
determination process, RISCORP and Zenith Insurance have submitted all items 
in dispute concerning the Proposed Business Balance Sheet to a nationally 
recognized independent accounting firm which will serve as the Neutral 
Auditor and Neutral Actuary to resolve all such disputes. On July 24,1998, 
Zenith Insurance submitted to such firm a written analysis in support of its 
proposed adjustments. Such adjustments would indicate that the value of the 
liabilities assumed by Zenith Insurance exceeds the value of the assets 
transferred to Zenith Insurance by as much as $71 million, and that the final 
purchase price will be no greater than the $35 million already paid by Zenith 
Insurance at closing. On July 24, 1998, RISCORP delivered to such firm 
RISCORP's initial submission indicating that its determination of the final 
purchase price is approximately $141 million. On July 31, 1998, Zenith 
Insurance and RISCORP made additional submissions to the Neutral Auditor and 
Neutral Actuary in support of the positions taken by the parties in their 
submissions on July 24, 1998.


                                      14
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

The Asset Purchase Agreement originally called for the Neutral Auditor and 
Neutral Actuary to issue a determination on the disputed items within 30 days 
after completion of Zenith Insurance's review of the Proposed Business 
Balance Sheet on July 9, 1998, which would have resulted in a final purchase 
price no later than August 10, 1998. However, pursuant to agreement among 
Zenith Insurance, RISCORP and the Neutral Auditor and Neutral Actuary, the 
determination of the Neutral Auditor and Neutral Actuary is not required to 
be available until 90 days after the Neutral Auditor and Neutral Actuary 
received the submissions made by the parties on July 31, 1998. Also, the 
Neutral Auditor and Neutral Actuary have advised that the availability of the 
determination may be delayed beyond that 90-day period because the Neutral 
Auditor and Neutral Actuary had not received access to certain workpapers as 
of July 31, 1998. On November 10, 1998 RISCORP requested that the Neutral 
Auditor and the Neutral Actuary consider additional materials that RISCORP 
will deliver on November 13, 1998, and consideration of these additional 
materials may further delay the availability of the determination by the 
Neutral Auditor and the Neutral Actuary. Zenith cannot predict the outcome of 
the price determination process, and the determination of the Neutral Auditor 
and Neutral Actuary related to the final purchase price will not be known 
until the fourth quarter of 1998 or later. Accordingly, Zenith cannot predict 
the final purchase price at this time.

The RISCORP Acquisition was accounted for as a purchase by Zenith Insurance 
and the assets acquired, liabilities assumed and the results of operations 
from RISCORP at April 1, 1998 are included in Zenith's consolidated balance 
sheet and statement of operations as of and for the quarter ended September 
30, 1998. Because of the considerable uncertainty and possible range of 
outcomes surrounding the determination of the final purchase price, the 
assets acquired and liabilities assumed from RISCORP reflected in Zenith's 
consolidated balance sheet as of September 30, 1998 represent management's 
estimate of their fair values at April 1, 1998, based on currently available 
information and the assumption that the final purchase price will be $35 
million.

Based on such estimates and the assumption that the final purchase price is 
$35 million, the excess of the purchase price, including acquisition expense, 
over the estimated fair value of net assets is approximately $76 million and 
is being amortized over 25 years. Since the $76 million is based on estimates 
and assumptions, it may materially change upon determination, and adjustment 
of the allocation, of the final purchase price. Estimated amortization 
expense, from April 1, 1998, of $0.8 million and $1.5 million was recorded in 
the three and nine months ended September 30, 1998, respectively.

Evaluation and determination of the acquired assets and assumed liabilities 
are continuing, including: premiums receivable; reinsurance recoverables; 
state disability trust fund recoverable; accrued reinsurance commissions; 
deferred acquisition costs; and unpaid loss and loss adjustment expenses. 
Accordingly, the allocation of the purchase price may be adjusted.

Zenith Insurance has provided notice to RISCORP of certain breaches of 
representations, warranties and covenants made by RISCORP in the Asset 
Purchase Agreement. These breaches may result in recovery by Zenith Insurance 
of a portion of the purchase price otherwise payable by Zenith Insurance. In 
addition, Zenith Insurance believes it is entitled to receive certain assets 
of RISCORP, including security deposits held by state insurance departments, 
that were not transferred to Zenith Insurance at closing.

Zenith Insurance has entered into a binder pending the definitive contract to 
purchase ceded reinsurance protection relating to development of the loss and 
loss adjustment expense reserves assumed from RISCORP.


                                      15
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

PROPERTY-CASUALTY INSURANCE OPERATIONS

The business acquired from RISCORP, effective April 1, 1998, contributed 
$22.7 million and $47.4 million of workers' compensation premiums earned in 
the three and nine months ended September 30, 1998, respectively. This 
business contributed an underwriting loss, before taxes, of $5.5 million and 
$9.6 million in the three and nine months ended September 30, 1998, 
respectively. The RISCORP Acquisition reduced earnings per share in the three 
and nine months ended September 30, 1998 by $0.09 and $0.18, respectively, 
due to provisional goodwill amortization and other expenses. Excess costs in 
the former RISCORP business will adversely impact the underwriting results in 
Zenith's workers' compensation operation, pending the integration of such 
former RISCORP business into Zenith's existing workers' compensation 
operations.

Competition in the workers' compensation business continues to be intense. 
Excluding the effect of the additional premiums from the RISCORP Acquisition, 
premiums earned by Zenith's workers' compensation written both inside and 
outside of California decreased in the three months and nine months ended 
September 30, 1998 compared to the corresponding periods in 1997. The 
underwriting results for the three and nine months ended September 30, 1998 
include $2.0 million, before tax, of losses related to catastrophic workers' 
compensation claims in the third quarter.

Profitability is dependent upon the ability to maintain adequate rates, 
manage claims costs and keep operating expenses in line with premium volume. 
Zenith is unable to predict when its workers' compensation operation will 
return to underwriting profitability that is consistent with Zenith's 
historical experience.

California wind and storm damage sustained by Zenith's other 
property-casualty operations in the first quarter of 1998 also contributed to 
the decline in the underwriting results for nine months ended September 30, 
1998 compared to the corresponding period in 1997. Notwithstanding these 
catastrophe losses and intense competition, Zenith's other property-casualty 
operations are achieving favorable underwriting results.

Reinsurance premiums earned declined in the three months and nine months 
ended September 30, 1998 compared to the corresponding periods in 1997 due 
primarily to selected non-renewal of certain reinsurance treaties and 
softening of property catastrophe rates. The underwriting results for the 
three and nine months ended September 30, 1998 include estimated catastrophe 
losses related to Hurricane Georges of $2.0 million before taxes in the third 
quarter. The decrease in the loss and loss adjustment expense ratio for 
reinsurance, excluding the impact of Hurricane Georges, for the nine months 
ended September 30, 1998 as compared to the corresponding period in 1997 is 
due to favorable development for certain treaties in addition to current 
operations.

Total catastrophe losses reduced earnings per share by $0.15 and $0.34 per 
share for the three and nine months ended September 30, 1998, respectively, 
as compared to none and $0.05 per share for the corresponding periods in 1997.


                                      16
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

INVESTMENTS

Zenith's invested assets and cash increased by approximately $230 million as 
a result of the RISCORP Acquisition. The investment portfolio acquired in the 
RISCORP Acquisition consists of investment grade U.S. treasury notes, 
corporate debt and municipal debt.

Investment income for the three and nine months ended September 30, 1998 
increased from the corresponding periods in 1997 primarily due to the 
increase in invested assets added by the RISCORP Acquisition.

The yields on invested assets, which vary with the general level of interest 
rates, were as follows:

<TABLE>
<CAPTION>
                                                     Three Months Ended          Nine Months Ended
                                                       September 30,               September 30,
                                                    1998          1997          1998          1997
- ---------------------------------------------------------------------------------------------------
<S>                                                 <C>           <C>           <C>           <C>
Investment yield, before taxes                       5.8%          6.0%          5.9%          5.9%
Investment yield, after taxes                        3.9%          4.0%          3.9%          3.9%
- ---------------------------------------------------------------------------------------------------
</TABLE>

Bonds with an investment grade rating represented 97% and 96% of the 
consolidated carrying values of fixed maturities at September 30, 1998 and 
December 31, 1997, respectively. The average maturity of the investment 
portfolio was 4.7 years at September 30, 1998 and 4.2 years at December 31, 
1997.

The total fair value of fixed maturity investments, and the unrealized gain 
on held-to-maturity and available-for-sale fixed maturity investments, were 
as follows:

<TABLE>
<CAPTION>
                                                                Unrealized Gain on Fixed Maturities
                                                             --------------------------------------------
                                        Total Fair            Held-to-Maturity          Available-for-Sale
                                         Value of            ---------------           ------------------
(in thousands)                       Fixed Maturities           Before Tax        Before Tax      After Tax
- -----------------------------------------------------------------------------------------------------------
<S>                                  <C>                     <C>                  <C>             <C>
At September 30, 1998                   $992,787                  $1,705           $15,455         $10,045
At December 31, 1997                     800,572                   1,318             7,744           5,034
At September 30, 1997                    788,232                     738             3,645           2,369
- -----------------------------------------------------------------------------------------------------------
</TABLE>

The change in fair value of fixed maturity investments available-for-sale 
resulted in an increase in stockholders' equity of $5.0 million, after 
deferred taxes, between December 31, 1997 and September 30, 1998. 
Stockholders' equity will continue to be affected by volatility in the fixed 
maturity securities market.


                                      17
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

The change in the carrying value of Zenith's consolidated investment 
portfolio during the nine months ended September 30, 1998 was as follows:

<TABLE>
<CAPTION>
(in thousands)
- ---------------------------------------------------------------------------------------------------
<S>                                                                          <C>         <C>
Carrying value at December 31, 1997                                                      $ 879,973
Purchases at cost                                                                          259,208
Investments acquired in RISCORP Acquisition                                                201,441
Maturities and redemptions                                                                 (63,452)
Proceeds from sales of investments                                                        (216,631)
Net realized gain on:
     Investments available-for-sale                                          4,928
     Other investments                                                       3,410
                                                                            ------
           Total                                                                             8,338
Change in unrealized gains                                                                   2,657
Increase in short-term investments                                                          13,462
Net amortization of bonds and preferred stocks and
     other changes                                                                           1,853
- ---------------------------------------------------------------------------------------------------
          Carrying value at September 30, 1998                                          $1,086,849
- ---------------------------------------------------------------------------------------------------
</TABLE>

LIQUIDITY AND CAPITAL RESOURCES

The decrease in net cash provided by operating activities is primarily due to 
a $26.4 million decrease in cash flows from workers' compensation operations 
caused by a decrease in premium income (net of ceded reinsurance). Also, 
principally as a result of the RISCORP Acquisition, there was an increase in 
workers' compensation loss and loss adjustment expense payments associated 
with the unpaid loss and loss adjustment expense reserves acquired April 1, 
1998 and an increase in operating expenses.

Zenith has three revolving, unsecured lines of credit amounting to $100 
million, all of which is available at September 30, 1998.

Zenith is principally dependent upon its portfolio of marketable securities 
and the investment yields thereon; dividends from its insurance subsidiaries, 
whose operations are supported by their own cash flows; and available lines 
of credit to pay its expenses, service debt and pay any cash dividends which 
may be declared to its stockholders.

During the first nine months of 1998, Zenith repurchased 960,180 shares on 
the open market for a total purchase price of $24 million. The repurchase was 
funded by proceeds from the sale and maturity of certain investment 
securities.

On July 30, 1998, Zenith issued $75 million of 8.55% Capital Securities at a 
price of $996.24 per security through the Zenith National Insurance Capital 
Trust I, a Delaware statutory business trust (the "Trust"), all of the voting 
securities of which are owned by Zenith. Each Capital Security pays 
semi-annual cumulative cash distributions at the annual rate of 8.55% of the 
$1,000 liquidation amount per security.


                                      18
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

The Trust used the proceeds from its offering to purchase $75 million of 
Zenith's 8.55% Subordinated Deferrable Interest Debentures due 2028 (the 
"Subordinated Debentures"), which constitute the principal asset of the 
Trust. The semi-annual interest payments on the Subordinated Debentures may 
be deferred by Zenith for up to ten consecutive semi-annual periods. The 
Subordinated Debentures are redeemable at any time by Zenith at the then 
present value of the remaining scheduled payments of principal and interest. 
Payments on the Capital Securities, including distributions and redemptions, 
follow those of the Subordinated Debentures. Zenith used $65 million from the 
net proceeds to make a capital contribution to Zenith Insurance. The 
remaining net proceeds were used for general corporate purposes. The issue 
cost and discount on the Subordinated Debentures of $1.7 million are being 
amortized over the term of the Subordinated Debentures. During the three 
months and nine months ended September 30, 1998, approximately $9,000 of such 
costs were amortized.

Zenith fully and unconditionally guaranteed the distributions on, and the 
liquidation amount generally of, the Capital Securities to the extent the 
Trust has funds legally available therefor. Zenith's guarantee of the Capital 
Securities, as well as the Subordinated Debentures, are subordinated to all 
other indebtedness of Zenith.

The net proceeds from the Capital Securities were primarily invested by 
Zenith in various short-term securities which, in the aggregate, yield less 
than the interest cost of the Subordinated Debenture.

On September 28, 1998, the Board of Directors declared a regular quarterly 
cash dividend of $0.25 per share on the outstanding shares, payable on 
November 13, 1998 to stockholders of record at the close of business on 
October 30, 1998.

On April 1, 1998, in connection with the closing of the RISCORP Acquisition, 
Zenith Insurance paid $35 million to RISCORP and subsequently repaid $15 
million in indebtedness assumed from RISCORP, Inc.


                                      19
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

YEAR 2000

The Year 2000 Problem refers to the inability of information technology 
("IT") and non-information technology ("non-IT") systems to accurately 
process dates during and after 1999. IT systems include computer hardware and 
software. Non-IT systems include equipment that incorporates embedded micro 
controllers such as elevators, security systems and HVAC systems. If not 
corrected, the processes of IT and non-IT systems that are date sensitive 
could fail or miscalculate data resulting in disruptions of operations such 
as a temporary inability to process transactions, send and receive electronic 
data with third parties or otherwise engage in normal business activities. 
There may also be a negative impact on the economic and social infrastructure 
on which Zenith depends.

In early 1996, Zenith formed a Year 2000 team consisting of staff familiar 
with the Company's IT and non-IT systems to coordinate the elimination, to 
the extent possible, of Zenith's exposure to the Year 2000 problem. Reports 
of the Year 2000 team's efforts are presented to Zenith's Board of Directors 
periodically.

Since 1996, Zenith has been systematically replacing and modifying its 
internal systems to function correctly with dates from 1999 forward, thereby 
rendering them "Year 2000 Compliant." Internal systems ("Internal Systems") 
consist of (1) core information technology systems supporting corporate level 
accounting and financial reporting processes ("Core Corporate IT Systems"); 
(2) core information technology systems supporting operational processes 
involving (a) underwriting, premium collection and claims processes in 
Zenith's insurance operations (including those systems acquired in the 
RISCORP Acquisition) and (b) land acquisitions, development, construction, 
sales and escrow tracking/monitoring in the Perma-Bilt operations ("Core 
Operational IT Systems"); (3) computer networks and communications 
infrastructure ("IT Infrastructure"); (4) personal and laptop computers 
including applications ("Other IT Equipment"); and (5) owned facility systems 
which rely on non-computer equipment incorporating embedded microprocessors, 
such as elevators, HVAC and security as well as office equipment such as 
facsimile and copy machines and postage meters ("Facilities and Other Non-IT 
Systems"). The majority of Zenith's Year 2000 compliance efforts have been 
staffed internally, although Zenith has engaged and will continue to engage 
technical consultants to assist its internal staff, as well as to assist 
Zenith in reviewing its progress.

The Internal Systems are being corrected through a process with five phases, 
some of which are concurrent: (1) Inventory (listing IT and non-IT systems 
and their components); (2) Assessment (identifying possible Year 2000-related 
failures and developing strategies to repair, replace, or eliminate them); 
(3) Remediation (creating or acquiring corrections to identified 
deficiencies); (4) Validation (confirming whether corrections would be 
successful); and (5) Implementation (installing corrections into the business 
operations for general use).


                                      20
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

The status and scheduled completion dates of efforts to make the Internal 
Systems supporting Zenith's operations Year 2000 Compliant are as follows:

<TABLE>
<CAPTION>
                                     Inventory      Assessment     Remediation       Validation      Implementation
                                     ------------------------------------------------------------------------------
<S>                                <C>            <C>            <C>               <C>             <C>
Core Corporate IT Systems:          Completed      Completed        Completed         3/31/99          3/31/99
- -------------------------
Core Operational IT Systems:
- ---------------------------------
  Workers' Compensation             Completed      Completed        Completed         3/31/99          4/30/99
  Other Property-Casualty           Completed      Completed         3/31/99          3/31/99          4/30/99
  Reinsurance                       Completed      Completed        Completed        Completed        Completed
  Perma-Bilt                        Completed      Completed        Completed         3/31/99          4/30/99

IT Infrastructure:
- ---------------------------------
  Workers' Compensation             11/30/98        3/31/99          6/30/99          7/31/99          7/31/99
  Other Property-Casualty           11/30/98        3/31/99          6/30/99          7/31/99          7/31/99
  Reinsurance                       11/30/98        3/31/99          6/30/99          7/31/99          7/31/99
  Perma-Bilt                        Completed      Completed        Completed         3/31/99          3/31/99

Other IT Equipment:
- ---------------------------------
  Workers' Compensation             12/31/98        2/28/99          5/31/99          7/31/99          7/31/99
  Other Property-Casualty           12/31/98        2/28/99          5/31/99          7/31/99          7/31/99
  Reinsurance                       12/31/98        2/28/99          5/31/99          7/31/99          7/31/99
  Perma-Bilt                        12/31/98        3/31/99          3/31/99          3/31/99          3/31/99

Facilities and Other Non-IT
 Systems:
- ---------------------------------
  Woodland Hills, CA                Completed      Completed        Completed        11/30/98         12/31/98
  Sarasota, FL                      Completed      Completed         5/30/99          8/31/99          8/31/99
  Sacramento, CA                    Completed      Completed        Completed        Completed        Completed

</TABLE>

Zenith's Year 2000 efforts also include a systematic assessment of the Year 
2000 Compliance status of third parties upon which the Company relies in its 
business operations, including major suppliers of services and products, 
owners of its leased facilities and principal business partners 
(collectively, "Key External Dependencies"). Zenith has used letters, 
questionnaires, surveys and interviews to determine whether these Key 
External Dependencies will achieve Year 2000 Compliance. To date, Zenith has 
been unable, in most cases, to obtain reliable information, and is therefore 
uncertain about the state of readiness of many of its Key External 
Dependencies. Although none of the Key External Dependencies has informed 
Zenith that it has a Year 2000 issue that would have a material effect on 
Zenith, few have provided definitive statements, written assurances or 
warranties that they will be Year 2000 Compliant. Zenith intends to continue 
its systematic assessment, including follow-ups of its Key External 
Dependencies.


                                      21
<PAGE>

               ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

All companies are faced with certain unknown risks arising from Year 2000 
issues that may impact them negatively. Zenith's Year 2000 efforts have been 
designed to mitigate to the extent possible its risks from Year 2000-related 
failures faced by the company. Despite Zenith's Year 2000-related efforts, 
Zenith recognizes the possibility of some negative impact on its operations 
resulting from Year 2000-related failures. Zenith believes that the most 
reasonably likely worst case Year 2000 scenarios could include failures of 
Zenith's Internal Systems, a failure of one or more of its critical Key 
External Dependencies, such as financial institutions, agents/brokers or 
reinsurers, and/or the contamination of Zenith's IT systems due to receipt of 
corrupted data. Such a scenario could result in a disruption of Zenith's 
normal business activities and could have a material adverse effect on its 
financial condition and results of operations. In the quarter ended September 
30, 1998, Zenith began developing contingency plans to substantially reduce 
material business disruptions from such risks. Although the contingency plans 
are in the early process of formulation, Zenith intends such plans to include 
measures, such as 1) acceleration into the last quarter of 1999 the 
performance of obligations and duties otherwise owed in the first quarter of 
2000; 2) identification of alternatives to Key External Dependencies that may 
not be Year 2000 Compliant and therefore unable to meet Zenith's needs; and 
3) certain activities in Zenith's pre-existing Business Recovery/Resumption 
Plan designed for Zenith to operate during, and to recover from, 
catastrophes. All contingency plans are expected to be in place by September 
30, 1999.

Zenith has been planning to upgrade its IT Infrastructure and its IT 
Equipment for some time; however, because of the Year 2000 problem, certain 
components of those plans will have to be accelerated. At this time Zenith is 
still in the process of determining which components should be accelerated 
and the costs that should be treated as Year 2000-related. Zenith does not 
have an estimate of these costs and they are not included in the following 
table under "Estimate to Complete" and "Total Estimated IT Expenditure" (both 
of which are expected to increase due to such acceleration and because Zenith 
is in the process of retaining certain consultants to review its progress). 
The table sets out the costs for either repairing Zenith's IT systems ("IT 
Repair Costs") or for replacing them ("IT Replacement Costs").

<TABLE>
<CAPTION>
                                                     Percent
                                  Expenditures      Expended        Estimate           Total      
                                     as of            as of            to           Estimated IT  
(in thousands)                      9/30/98          9/30/98        Complete        Expenditure   
- --------------------------------------------------------------------------------------------------
<S>                               <C>               <C>             <C>             <C>           
IT Repair Costs                      $3,848             88%           $529            $4,377      
IT Replacement Costs:
    Software                            197            100%                              197      
    Hardware                            191            100%                              191      
    Related Expenditures                248             84%             47               295      
- --------------------------------------------------------------------------------------------------
       Total                         $4,484             89%           $576            $5,060      
- --------------------------------------------------------------------------------------------------
</TABLE>


                                      22
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

IT Costs include external costs and the cost of dedicated information 
technology personnel. IT Repair Costs are expensed as they are incurred; IT 
Replacement Costs are capitalized in accordance with SOP 98-1. (See Note 5 of 
Notes to the Consolidated Financial Statements.) The internal cost of user 
participation in acceptance testing has not been measured and is not included 
in the foregoing estimates. Although not quantified at this time, costs 
associated with non-IT systems and contingency planning are not expected to 
be significant. All Year 2000-related costs have been, and will continue to 
be, funded from internal sources. No planned information technology projects 
were deferred because of Year 2000 related efforts.

The reader is directed to the section of this Report entitled "Forward 
Looking Information" and cautioned that the foregoing discussion on the Year 
2000 Problem must be read in conjunction with such section. The forward 
looking information on the Year 2000 Problem, including its impact on Zenith, 
future costs, scheduled completion dates, and the success of Zenith's efforts 
in preparing for it are based on management's best estimates of future 
events. Such estimates, however, are subject is the inherent uncertainty of 
the ultimate effect and the extent of the Year 2000 Problem and the 
availability of technical resources and hardware.

CODIFICATION OF STATUTORY ACCOUNTING PRINCIPLES

In March of 1998, the National Association of Insurance Commissioners 
approved the codification of statutory accounting principles for use by 
insurance departments, insurers, and auditors. Currently, it is not known 
which states will adopt the comprehensive basis of statutory accounting and 
reporting. Therefore, the implementation date cannot be determined. 
Implementation of the codified statutory accounting principles may affect the 
surplus level and the capitalization requirements of Zenith's insurance 
subsidiaries on a statutory basis. Zenith has not determined the impact of 
this codification.


                                      23
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

FORWARD LOOKING INFORMATION

The Private Securities Litigation Reform Act of 1995 provides a safe harbor 
for forward-looking statements if accompanied by meaningful cautionary 
statements identifying important factors that could cause actual results to 
differ materially from those discussed. Forward-looking statements include 
those related to the plans and objectives of management for future 
operations, future economic performance, or projections of revenues, income, 
earnings per share, capital expenditures, dividends, capital structure, or 
other financial items. Statements containing words such as EXPECT, 
ANTICIPATE, BELIEVE, or similar words that are used in Management's 
Discussion and Analysis of Financial Condition and Results of Operations, in 
other parts of this report or in other written or oral information conveyed 
by or on behalf of Zenith are intended to identify forward-looking 
statements. Zenith undertakes no obligation to update such forward-looking 
statements, which are subject to a number of risks and uncertainties that 
could cause actual results to differ materially from those projected. These 
risks and uncertainties include but are not limited to the following: (1) 
heightened competition, particularly intense price competition; (2) adverse 
state and federal legislation and regulation; (3) changes in interest rates 
causing a reduction of investment income; (4) general economic and business 
conditions which are less favorable than expected; (5) unanticipated changes 
in industry trends; (6) adequacy of loss reserves; (7) catastrophic events or 
the occurrence of a significant number of storms, and wind and hail losses; 
(8) ability to timely and accurately complete the Year 2000 conversion 
process; (9) impact of any failure of third parties with whom Zenith does 
business to be Year 2000-compliant; (10) uncertainties related to the RISCORP 
Acquisition, including (a) the ability of Zenith to integrate on a profitable 
basis the business acquired from RISCORP, (b) the determination of the final 
purchase price, (c) the value of transferred assets and transferred 
liabilities, (d) the ability of Zenith to recover from RISCORP certain assets 
not transferred to Zenith at closing and (e) the ability of Zenith to recover 
any amounts from RISCORP for breaches of representations, warranties and 
covenants under the Asset Purchase Agreement; (11) changing environment for 
controlling medical, legal and rehabilitation costs, as well as fraud and 
abuse; and (12) other risks detailed herein and from time to time in Zenith's 
other reports and filings with the Securities and Exchange Commission.


                                      24
<PAGE>

                           PART II, OTHER INFORMATION
                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

- -------------------------------------------------------------------------------

ITEM 2.  CHANGES IN SECURITIES AND USE OF PROCEEDS

Pursuant to the issuance of the Confidential Offering Circular dated July 27, 
1998, on July 30, 1998, Zenith sold $75 million of 8.55% Capital Securities 
at a price of $996.24 per security through the Zenith National Insurance 
Capital Trust I, a Delaware statutory business trust (the "Trust"), all of 
the voting securities of which are owned by Zenith to a limited number of 
institutional investors in a Rule 144A offering. The Trust used the proceeds 
from its offering to purchase $75 million of Zenith's 8.55% Subordinated 
Deferrable Interest Debentures due 2028 (the "Subordinated Debentures"), 
which constitute the principal asset of the Trust. Zenith fully and 
unconditionally guaranteed the distributions on, and the liquidation amount 
generally of, the Capital Securities to the extent the Trust has funds 
legally available therefor. Zenith's guarantee of the Capital Securities, as 
well as the Subordinated Debentures, are subordinated to all other 
indebtedness of Zenith. (See Note 7 to the Consolidated Financial Statements).

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

(a)      Exhibits

<TABLE>
<CAPTION>

<S>      <C>
3.1      Certificate of Incorporation of Zenith as in effect immediately prior
         to November 22, 1985. (Incorporated herein by reference to Exhibit 3 to
         Zenith's amendment on Form 8, date of amendment October 10, 1985, to
         Zenith's Current Report on Form 8-K, date of report July 26, 1985.)

         Certificate of Amendment to Certificate of Incorporation of Zenith,
         effective November 22, 1985. (Incorporated herein by reference to
         Zenith's Current Report on Form 8-K, date of report November 22, 1985.)

3.2      By-laws of Zenith, as currently in effect. (Incorporated herein by
         reference to Exhibit 3.2 to Zenith's Annual Report on Form 10-K for
         the year ended December 31, 1988.)

10.1     Loan Revision Agreement, dated June 26,1998, to the promissory note,
         dated July 1, 1997, between Zenith National Insurance Corp. and City
         National Bank.

10.2     Second Amendment, dated July 23, 1998, to the Credit Agreement, dated
         July 24, 1997, between Zenith National Insurance Corp. and Bank of
         America National Trust and Savings Association.

10.3     Restated Tranche A Note, dated July 23, 1998 between Zenith National
         Insurance Corp. and Bank of America National Trust and Savings
         Association.

10.4     Third Amendment, dated August 21, 1998, to the Credit Agreement, dated
         July 24, 1997, between Zenith National Insurance Corp. and Bank of
         America National Trust and Savings Association.
</TABLE>


                                      25
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

(a)      Exhibits

<TABLE>
<CAPTION>

<S>      <C>
10.5     Fourth Amendment, dated September 15, 1998, to the Line of Credit
         Agreement, dated December 15, 1994, between Zenith National Insurance
         Corp. and Sanwa Bank California.

10.6     Indenture, dated July 30, 1998, between Zenith National Insurance
         Corp. and Norwest Bank Minnesota, National Association.

10.7     Capital Securities Guarantee Agreement, dated July 30, 1998, between
         Zenith National Insurance Corp. and Norwest Bank Minnesota, National
         Association.

10.8     Amended and Restated Declaration of Trust of Zenith National Insurance
         Capital Trust I, dated July 30, 1998, between Zenith National Insurance
         Corp., the trustees and the holders.

10.9     Purchase Agreement between Zenith National Insurance Corp., Zenith
         National Insurance Capital Trust I, Credit Suisse First Boston 
         Corporation, BancAmerica Robertson Stephens and Donaldson, Lufkin & 
         Jenrette Securities Corporation, dated July 27, 1998, for $75,000,000 
         Zenith National Insurance Capital Trust I 8.55% Capital Securities.

10.10    Workers' Compensation Quota Share Reinsurance Agreement, dated October
         13, 1998, between Zenith Insurance Company and American Re-Insurance
         Company.

11       Statement re computation of per share earnings. (Note 2 of the
         Consolidated Financial Statements included in Item 1 of Part I of this
         Quarterly Report on Form 10-Q is incorporated herein by reference.)

27       Financial data schedule

</TABLE>

(b)      Reports on Form 8-K

         The Registrant filed a Current Report on Form 8-K dated July 9, 1998 on
         July 9, 1998 in connection with the acquisition by Zenith Insurance of
         substantially all the assets and certain of the liabilities of RISCORP.



                                      26
<PAGE>

                ZENITH NATIONAL INSURANCE CORP. AND SUBSIDIARIES

                                  Signatures

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

                                       ZENITH NATIONAL INSURANCE CORP.
                                                           Registrant


Date:    November 13, 1998             /s/  Stanley R. Zax
                                       -----------------------------------
                                       Stanley R. Zax
                                       Chairman of the Board and President
                                       (Principal Executive Officer)


Date:    November 13, 1998             /s/  Fredricka Taubitz
                                       -----------------------------------
                                       Fredricka Taubitz
                                       Executive Vice President and
                                       Chief Financial Officer
                                       (Principal Accounting Officer)


                                      27

<PAGE>

[LOGO]                                                   LOAN REVISION AGREEMENT
                                (Unsecured or Secured by Personal Property Only)

                                                           Note No. 209600/11552

This LOAN REVISION AGREEMENT ("Agreement") refers to the loan evidenced by a
promissory note ("Note") dated July 1, 1997, as previously revised by that
certain Modification of Note dated October 10, 1997 in favor of CITY NATIONAL
BANK, a national banking association ("CNB") executed by ZENITH NATIONAL
INSURANCE CORP., A DELAWARE CORPORATION ("Borrower") in the original principal
amount of $20,000,000.00, payable in full on July 1, 1998, subject to any
installment maturities in the Note.

The principal balance of the Note as of June 26, 1998, is $0.00.

Each Borrower hereby requests that CNB revise the terms of the Note and that CNB
accept payment of the Note at the time, or times, and in the manner following:

TERMINATION DATE OF THE NOTE IS HEREBY EXTENDED TO JULY 1, 1999.

In consideration of CNB's acceptance of the revision of the Note, including the
time for payment thereof, all as set forth above, each Borrower does hereby
acknowledge and admit to such indebtedness, and further does unconditionally
agree to pay such indebtedness together with interest thereon within the time
and in the manner as revised in accordance with this Agreement.

This Agreement is a revision of the terms of repayment only, and not a novation;
and except as herein provided, all of the terms and conditions of the Note shall
remain unchanged and in full force and effect.

When more than one Borrower signs this Agreement, all agree:

     a.   That breach of any covenant by any Borrower may, at CNB's option, be
          treated as a breach by all Borrowers; and
     b.   That the liability and obligations of each Borrower are joint and
          several.

Dated at Beverly Hills, California, this 26th day of June, 1998.

ZENITH NATIONAL INSURANCE CORP., A
DELAWARE CORPORATION

By: /s/ Stanley R. Zax
   ---------------------------------------------------
   Stanley R. Zax, Chairman of the Board and President



<PAGE>


                                      GUARANTORS

I hereby join in the foregoing request and agree that any and all of my
obligations relating to the above described Note shall remain in effect and
shall relate fully to such Note as it is hereby modified, extended and/or
revised

Date




- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

Accepted and revision and/or extension granted in reliance upon each of the
representations and agreements hereinabove contained.

Dated: June 26, 1998.                       CITY NATIONAL BANK

                                            By:  /s/ Fernando Buesa
                                                -------------------------------
                                                Fernando Buesa, Vice President


                                          2

<PAGE>
                                 SECOND AMENDMENT TO
                                   CREDIT AGREEMENT

     THIS SECOND AMENDMENT TO CREDIT AGREEMENT (this "Amendment") dated as of
July 23, 1998 is entered into between ZENITH NATIONAL INSURANCE CORP. (the
"Company"), and BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION (the
"Bank").

                                  W I T N E S E T H

          WHEREAS, the Company and the Bank are parties to that certain Credit
Agreement dated as of July 24, 1997 (as amended, herein called the "Credit
Agreement"; terms used but not otherwise defined herein are used herein as
defined in the Credit Agreement); and

          WHEREAS, the Company and the Bank desire to make certain amendments to
the Credit Agreement on the terms and conditions set forth herein;

          NOW, THEREFORE, in consideration of the premises, and intending to be
legally bound hereby, the Company and the Bank hereby agree as follows:

          SECTION 1. AMENDMENTS.

          Subject to and upon the terms and conditions hereof and in reliance 
on the Company's warranties set forth in SECTION 2 below as of the date 
hereof the Credit Agreement is amended so that the definition of "Tranche A 
Termination Date" contained in Section 1.1 of the Credit Agreement shall be 
amended to delete the reference to July 23, 1998 contained therein and 
replace it with a reference to July 22, 1999.

          SECTION 2. WARRANTIES.

          To induce the Bank to enter into this Amendment, the Company warrants
to the Bank as of the date hereof that:

          (a)  After giving effect to this Amendment, all representations and 
warranties contained in the Credit Agreement and the Loan Documents are true 
and correct in all material respects on and as of the date hereof (except to 
the extent such representations and warranties expressly refer to an earlier 
date).

          (b)  After giving effect to this Amendment, no Default or Event of
Default has occurred and is continuing.

          (c)  The execution, delivery and performance by the Company of this
Amendment have been duly authorized by all necessary corporate and other action
and do not and will not require any registration with, consent or approval of,
notice to or action by, any


<PAGE>

Person (including any governmental authority) in order to be effective and
enforceable. The Credit Agreement as modified by this Amendment constitutes the
legal, valid and binding obligation of the Company, enforceable against it in
accordance with the Credit Agreement's terms, without defense, counterclaim or
offset.

          SECTION 3. GENERAL.

          (a)  As hereby modified, the Credit Agreement shall remain in full
force and effect and is hereby ratified, approved and confirmed in all respects.

          (b)  The Company acknowledges and agrees that the execution and
delivery by the Bank of this Amendment shall not be deemed to create a course of
dealing or otherwise obligate the Bank to execute similar modifications under
the same or similar circumstances in the future.

          (c)  This Amendment may be executed in any number of counterparts and
by the different parties on separate counterparts, and each such counterpart
shall be deemed to be an original, but all such counterparts shall together
constitute but one and the same Amendment.


                                         -2-
<PAGE>

Delivered at Chicago, Illinois, as of the date and year first above written.

                              BANK OF AMERICA NATIONAL TRUST AND
                              SAVINGS ASSOCIATION




                              By: /s/ Gary R. Peet
                                 ----------------------------------------
                              Name:     GARY R. PEET
                              Title:    Managing Director


                              ZENITH NATIONAL INSURANCE CORP.

                              By: /s/ Stanley R. Zax
                                 ----------------------------------------
                              Name: STANLEY R. ZAX
                              Title:  CHAIRMAN AND PRESIDENT


                                         -3-

<PAGE>
                               RESTATED TRANCHE A NOTE

$20,000,000                                                       July 23, 1998

          On or before July 22, 1999 the undersigned, FOR VALUE RECEIVED,
promises to pay to the order of BANK OF AMERICA NATIONAL TRUST AND SAVINGS
ASSOCIATION (the "Lender") at its principal  office at 231 South LaSalle Street
in Chicago, Illinois, TWENTY MILLION DOLLARS ($20,000,000) or, if less, the
aggregate unpaid  principal amount of all Tranche A Loans (as defined in the
Credit Agreement hereinafter referred to) made by the Lender to the undersigned
pursuant to the Credit Agreement, as shown in the schedule attached hereto (and
any continuation thereof).

          The undersigned also promises to pay interest on the unpaid principal
amount hereof from time to time outstanding from the date hereof until maturity
(whether by acceleration or otherwise) and, after maturity, until paid, at the
rates PER ANNUM and on the dates specified in the Credit Agreement.

          Payments of both principal and interest are to be made in lawful
money of the United States of America in same day or immediately available
funds.

          This Restated Note is the Tranche A Note described in, and is subject
to the terms and provisions of, a Credit Agreement, dated as of July 24, 1997
(as the same may at any time be amended or modified and in effect, the "Credit
Agreement"), between the undersigned and the Lender. Reference is hereby made to
the Credit Agreement for a statement of the prepayment rights and obligations
of the undersigned and for a statement of the terms and conditions under which
the due date of this Restated Note may be accelerated.  Upon the occurrence of
any Event of Default as specified in the Credit Agreement, the principal
balance hereof and the interest accrued hereon may be declared to be forthwith
due and payable, and any indebtedness of the holder hereof to the undersigned
may be appropriated and applied hereon.

          THIS RESTATED TRANCHE A NOTE CONSTITUTES A RENEWAL AND RESTATEMENT
OF, AND A REPLACEMENT AND SUBSTITUTE FOR, THE EXISTING TRANCHE A NOTE. THE
INDEBTEDNESS EVIDENCED BY THE EXISTING TRANCHE A NOTE IS CONTINUING
INDEBTEDNESS, AND NOTHING HEREIN SHALL BE DEEMED TO CONSTITUTE A PAYMENT,
SETTLEMENT OR NOVATION OF THE EXISTING FACILITY A NOTE OR TO ADVERSELY AFFECT
ANY RIGHTS OF THE LENDER IN CONNECTION WITH THIS NOTE, THE CREDIT AGREEMENT OR
THE LOAN DOCUMENTS.


<PAGE>

          In addition to and not in limitation of the foregoing and the
provisions of the Credit Agreement, the undersigned further agrees, subject
only to any limitation imposed by applicable law, to pay all expenses,
including reasonable attorneys' fees and legal expenses, incurred by the holder
of this Restated Note in endeavoring to collect any amounts payable hereunder
which are not paid when due, whether by acceleration or otherwise.

          All parties hereto, whether as makers, endorsers, or otherwise,
severally waive presentment for payment, demand, protest and notice of
dishonor.

          THIS RESTATED NOTE SHALL BE DEEMED TO BE A CONTRACT MADE UNDER AND
GOVERNED BY THE INTERNAL LAWS OF THE STATE OF CALIFORNIA.

                                        ZENITH NATIONAL INSURANCE CORP.

                                        By:/s/ Stanley R. Zax
                                           ----------------------------------
                                        Name:
                                             --------------------------------
                                        Title: Chairman
                                              -------------------------------


                                         -2-

<PAGE>

                                  THIRD AMENDMENT TO
                                   CREDIT AGREEMENT



          THIS THIRD AMENDMENT TO CREDIT AGREEMENT (this "Amendment") dated as
of August 21, 1998 is entered into between ZENITH NATIONAL INSURANCE CORP. (the
"Company"), and BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION (the
"Bank").

                                  W I T N E S E T H:

          WHEREAS, the Company and the Bank are parties to that certain Credit
Agreement dated as of July 24, 1997 (as amended, herein called the "Credit
Agreement"; terms used but not otherwise defined herein are used herein as
defined in the Credit Agreement); and

          WHEREAS, the Company and the Bank desire to make certain amendments to
the Credit Agreement on the terms and conditions set forth herein; 

          NOW, THEREFORE, in consideration of the premises, and intending to be
legally bound hereby, the Company and the Bank hereby agree as follows:

          SECTION 1.  AMENDMENTS.

          Subject to and upon the terms and conditions hereof and in reliance on
the Company's warranties set forth in SECTION 2 below, as of the date hereof the
Credit Agreement is amended as follows:

          1.1  Section 1.1 of the Credit Agreement is hereby amended to add the
     following definitions thereto in alphabetical order:

          "CAPITAL SECURITIES" shall have the meaning provided therefor in the
     Capital Trust Offering Memorandum.

          "CAPITAL TRUST" shall mean the Zenith National Insurance Capital Trust
     I, a statutory business trust fund formed under the laws of the State of
     Delaware.

          "CAPITAL TRUST OFFERING MEMORANDUM" shall mean the Confidential
     Offering Circular, dated July 27, 1998 related to the Capital Trust and the
     securities being issued thereby.

          "DECLARATION" shall have the meaning provided therefor in the Capital
     Trust Offering Memorandum.

          "DISTRIBUTION" shall have the meaning provided therefor in the Capital
     Trust Offering Memorandum.

<PAGE>

          "GUARANTEE" shall have the meaning provided therefor in the Capital
     Trust Offering Memorandum.

          "INDENTURE" shall have the meaning provided therefor in the Capital
     Trust Offering Memorandum.

          "SUBORDINATED DEBENTURES" shall have the meaning provided therefor in
     the Capital Trust Offering Memorandum.

          1.2  The definition of "Total Capitalization" contained in Section 1.1
     of the Credit Agreement shall be amended to read as follows:

          "TOTAL CAPITALIZATION" shall mean (a) principal of all Indebtedness of
     the Company described in clauses (a), (d) or (f) of the definition thereof
     for which the Company is directly liable or a Contingent Obligation of the
     Company related to Indebtedness described in one of such clauses plus (b)
     the Total Shareholders' Equity of the Company plus (c) the aggregate
     liquidation amount of any Capital Securities then outstanding.

          1.3  The definition of "Fixed Interest Charges" contained in Section
     1.1 of the Credit Agreement shall be amended to read as follows:

          "FIXED INTEREST CHARGES" shall mean interest paid or, without
     duplication, accrued but unpaid on the Loans or any other Indebtedness
     described in clauses (a) or (d) of the definition thereof, which shall be
     determined at the end of each fiscal quarter for the four consecutive
     fiscal quarters then ended; PROVIDED, THAT interest on the Subordinated
     Debentures and Distributions on the Capital Securities shall be excluded
     from this definition for purposes of the calculation.

          1.4  The following sentence shall be added to the end of the
     definition of "Indebtedness" in Section 1.1 of the Credit Agreement:

     "Except for purposes of Section 8.1(e), neither the Subordinated Debentures
     nor the Capital Securities shall constitute Indebtedness of the Company for
     purposes of this Agreement."

          1.5  The following sentence shall be added to the end of the
     definition of "Contingent Obligations" in Section 1.1 of the Credit
     Agreement:

     "Company's obligations under the Guarantee, the Subordinated Debentures,
     the Indenture, and the Declaration (which taken together is a full and
     unconditional guaranty by the Company of the Capital Trust's obligations
     under the Capital Security) shall not


                                         -2-
<PAGE>

     constitute Contingent Obligations for purposes of this Agreement except for
     purposes of Section 8.1(e) "

          1.6  Delete the heading "Long-Term Debt Rating of the Company" for the
     gird under "Applicable Margin" in Section 1.1 of the Credit Agreement and
     replace with "Rating of Company's 9% Senior Notes due 2002."  In the
     absence of a rating on such 9% Notes, an equivalent senior unsecured debt
     rating or in the absence of that, a rating one level above the rating on
     the 8.55% Capital Securities.

          1.7  Delete the heading "Long-Term Debt Rating of the Company" for the
     gird under Section 2.9(b) of the Credit Agreement and replace with "Rating
     of Company's 9% Senior Notes due 2002."  In the absence of a rating on such
     9% Notes, an equivalent senior unsecured debt rating or in the absence of
     that, a rating one level above the rating on the 8.55% Capital Securities.

          SECTION 2.  WARRANTIES.

          To induce the Bank to enter into this Amendment, the Company warrants
to the Bank as of the date hereof that:

          (a)  After giving effect to this Amendment, all representations and
warranties contained in the Credit Agreement and the Loan Documents are true and
correct in all material respects on and as of the date hereof (except to the
extent such representations and warranties expressly refer to an earlier date).

          (b)  After giving effect to this Amendment, no Default or Event of
Default has occurred and is continuing.

          (c)  The execution, delivery and performance by the Company of this
Amendment have been duly authorized by all necessary corporate and other action
and do not and will not require any registration with, consent or approval of,
notice to or action by, any Person (including any governmental authority) in
order to be effective and enforceable.  The Credit Agreement as modified by this
Amendment constitutes the legal, valid and binding obligation of the Company,
enforceable against it in accordance with the Credit Agreement's terms, without
defense, counterclaim or offset.

          SECTION 3.  GENERAL.

          (a)  As hereby modified, the Credit Agreement shall remain in full
force and effect and is hereby ratified, approved and confirmed in all respects.

          (b)  The Company acknowledges and agrees that the execution and
delivery by the Bank of this Amendment shall not be deemed to create a course of
dealing or otherwise


                                         -3-
<PAGE>

obligate the Bank to execute similar modifications under the same or similar
circumstances in the future.

          (c)  This Amendment may be executed in any number of counterparts and
by the different parties on separate counterparts, and each such counterpart
shall be deemed to be an original, but all such counterparts shall together
constitute but one and the same Amendment.

Delivered at Chicago, Illinois, as of the date and year first above written.


                                        BANK OF AMERICA NATIONAL TRUST AND
                                        SAVINGS ASSOCIATION


                                        By: /s/ Gary R. Peet
                                           ----------------------------------
                                        Name:  Gary R. Peet
                                        Title: Managing Director



                                        ZENITH NATIONAL INSURANCE CORP.


                                        By: /s/ Stanley R. Zax
                                           ----------------------------------
                                        Name:  Stanely R. Zax
                                        Title: Chairman & President



                                         -4-

<PAGE>

[LOGO]


                     FOURTH AMENDMENT TO LINE OF CREDIT AGREEMENT


     This Fourth Amendment to Line of Credit Agreement (the "Amendment") is
effective as of September 15, 1998 by and between SANWA BANK CALIFORNIA (the
"Bank") and ZENITH NATIONAL INSURANCE CORP. (the "Borrower") with respect to the
following:

     This Amendment shall be deemed to be a part of and subject to that certain
Line of Credit Agreement dated as of December 15, 1994, as heretofore amended,
and any and all addenda and riders heretofore made (collectively the
"Agreement").  Unless otherwise defined herein, all terms used in this Amendment
shall have the same meanings as in the Agreement.  To the extent that any of the
terms or provisions of this Amendment conflict with those contained in the
Agreement, the terms and provisions contained herein shall control.

     WHEREAS, the Borrower and the Bank mutually desire to extend and/or modify
the Agreement.

     NOW THEREFORE, for value received and hereby acknowledged, the Borrower and
the Bank agree as follows:

     1.   CERTAIN DEFINED TERMS.  Unless elsewhere defined in this Fourth
     Amendment, the following terms shall have the following meaning

               "CAPITAL SECURITIES" shall mean the 8.55% Capital Securities
     issued by the Trust on July 30, 1998.

               "CONFIDENTIAL OFFERING CIRCULAR" shall mean the Confidential
     Offering Circular dated July 27, 1998 for the Capital Securities to be
     issued by the Trust.

               "CONTINGENT OBLIGATIONS" shall mean any agreement, undertaking or
     arrangement (other than insurance and reinsurance obligations and surety
     bonds, in each case entered into in the ordinary course of business) by
     which any Person guarantees, endorses or otherwise becomes or is
     contingently liable for (by direct or indirect agreement, contingent or
     otherwise, to provide funds for payment, to supply funds to, or otherwise
     to invest in, a debtor, or otherwise to assure a creditor against loss but
     excluding the Borrower's agreement to subordinate debt owed to it by
     Perma-Bilt, a Nevada corporation, to amounts owed to others) the debt,
     obligation or other liability of any other Person (other than by
     endorsements of instruments in the course of collection), or guarantees the
     payment of dividends or other distributions upon the shares of any other
     Person.  The amount of any Person's obligation under any Contingent
     Obligation shall (subject to any limitation set forth therein) be deemed to
     be the outstanding principal amount of the debt, obligation of other
     liability guaranteed thereby. The obligations of the Borrower through the
     Guarantee, the Declaration, the Subordinated Deferrable Interest
     Debentures, and the Indenture (which taken together is a full and
     unconditional guaranty by Borrower of the Trust's obligations under the
     Capital Securities) shall not constitute Contingent Obligations for the
     purposes of this Agreement except for the provisions of section 5.02.


                                          1
<PAGE>


               "DECLARATION" shall mean as specified in the Confidential
     Offering Circular.

               "DEBT"  shall mean the outstanding principal for which Borrower
     is either directly liable or indirectly liable as a Contingent Obligation
     for (a) all indebtedness for borrowed money (b) all obligations evidenced
     by notes, bonds, debentures or similar instruments, including obligations
     so evidenced incurred in connection with the acquisition of property,
     assets or business but excluding the Subordinated Deferrable Interest
     Debentures and the Capital Securities (c) all obligations with respect to
     capital leases.

               "DISTRIBUTIONS" shall mean as specified in the Confidential
     Offering Circular.

               "FIXED INTEREST CHARGES" shall mean interest paid, or without
     duplication, accrued but unpaid on (i) the Line of Credit, (ii) all
     indebtedness for borrowed money, and (iii) all obligations evidenced by
     notes, bonds, debentures or similar instruments, including obligations so
     evidenced incurred in connection with the acquisition of property, assets,
     or businesses, which shall be determined at the end of each fiscal quarter
     for the four consecutive fiscal quarters then ended."  For the purposes of
     this definition Distributions and interest on the Subordinated Deferrable
     Interest Debentures will be excluded.

               "GUARANTEE" shall mean as specified in the Confidential Offering
     Circular.

               "INDENTURE" shall mean as specified in the Confidential Offering
     Circular.

               "SUBORDINATED DEFERRABLE INTEREST DEBENTURES" shall mean the
     $77,320,000 8.55% Subordinated Deferrable Interest Debentures due August 1,
     2028 issued by the Borrower.

                "TOTAL CAPITALIZATION" shall be defined as (a) Debt plus (b)
     Total Shareholder's Equity of the Borrower plus (c) the aggregate
     liquidation amount of the Capital Securities.

               "TRUST" shall mean Zenith National Insurance Capital Trust I, a
     statutory business trust formed under the laws of the State of Delaware.
     The Borrower will own all the common securities of the Trust.

     6.  EVENTS OF DEFAULT.  Section 5.02 of the Agreement is deleted in its
entirety and the following is inserted in lieu thereof:

          "5.02.
          a)  Performance under this Agreement.  The Borrower shall fail in any
          material respect to perform or observe any material term, covenant or
          agreement contained in this Agreement or any material document,
          instrument or agreement evidencing or relating to any material
          indebtedness of the Borrower to the Bank and any such failure
          (exclusive of the payment of money to the Bank under this Agreement or
          any other document, instrument or agreement, which failure shall
          constitute an immediate Event of Default if not paid within five (5)
          business days after notice from the Bank that the same is past due)
          shall continue for more than 30 days after written notice from the
          Bank to the Borrower of the existence and character of such Event of
          Default or should the default require more than (30) days but less
          than ninety (90) days to correct, the Borrower does not commence
          material corrective action within thirty (30) days and actively
          pursues such corrective action.



                                          2
<PAGE>

          b)  Performance With Other Third Parties.  The Borrower shall:

               (1) fail to make any payment in respect of (a) all indebtedness
               of Borrower for borrowed money (b) all obligations of Borrower
               evidenced by notes, bonds, debentures, Subordinated Deferrable
               Interest Debentures, Capital Securities or similar instruments,
               including obligations so evidenced incurred in connection with
               the acquisition of property, assets or businesses (c) all
               non-contingent reimbursement or payment obligations of Borrower
               with respect to Surety Instruments and (d) all obligations of
               Borrower with respect to capital leases or any Contingent
               Obligations of Borrower related to (a), (b), (c), and (d), having
               an aggregate principal amount (including undrawn committed or
               available amounts and including amounts owing to all creditors
               under any combined or syndicated credit agreement) of more than
               $10,000,000 when due (whether by scheduled maturity, required
               prepayment, acceleration, demand, or otherwise) and such failure
               continues after the applicable grace or notice period, if any,
               specified in the relevant document on the date of such failure;
               or

               (2)  fail to perform or observe any other condition or covenant,
               or any other event shall occur or condition exist, under any
               agreement or instrument relating to any such indebtedness or
               Contingent Obligation and such failure continues after the
               applicable grace or notice period, if any, specified in the
               relevant document on the date of such failure if the effect of
               such failure, event or condition is to cause such indebtedness to
               be declared to be due and payable prior to its stated maturity,
               or such Contingent Obligation to become payable or cash
               collateral in respect thereof to be demanded.

     7.  CONFIRMATION OF OTHER TERMS AND CONDITIONS OF THE AGREEMENT.  Except as
specifically provided in this Amendment, all other terms, conditions and
covenants of the Agreement unaffected by this Amendment shall remain unchanged
and shall continue in full force and effect and the Borrower hereby covenants
and agrees to perform and observe all terms, covenants and agreements provided
for in the Agreement, as hereby amended.

IN WITNESS WHEREOF, this Amendment has been executed by the parties hereto as of
the date first hereinabove written.



BANK:                                   BORROWER:

SANWA BANK CALIFORNIA                   ZENITH NATIONAL INSURANCE CORP.


By:   /s/ Dirk A. Price                 By:   /s/ Stanley R. Zax
   -------------------------------         -------------------------------------
     Dirk A. Price, Vice President          Stanley R. Zax, President & Chairman


                                          3

<PAGE>

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------




                          ZENITH NATIONAL INSURANCE CORP.



                               ---------------------


                                     INDENTURE

                             Dated as of July 30, 1998



                               ---------------------



                    NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION
                                      Trustee


                               ---------------------





                           8.55% Subordinated Deferrable
                            Interest Debentures Due 2028




- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------

<PAGE>

                                 TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                 Page
<S>                 <C>                                                          <C>
ARTICLE I           Definitions and Other Provisions of General Application....     3
     SECTION 1.01.  Definitions................................................     3
     SECTION 1.02.  Compliance Certificates and Opinions.......................    16
     SECTION 1.03.  Form of Documents Delivered to Trustee.....................    16
     SECTION 1.04.  Acts of Holders; Record Dates..............................    17
     SECTION 1.05.  Notices, Etc., to the Trustee and the Company..............    20
     SECTION 1.06.  Notice to Holders; Waiver..................................    20
     SECTION 1.07.  Conflict with Trust Indenture Act..........................    21
     SECTION 1.08.  Effect of Headings and Table of Contents...................    21
     SECTION 1.09.  Successors and Assigns.....................................    21
     SECTION 1.10.  Separability Clause........................................    21
     SECTION 1.11.  Benefits of Indenture......................................    21
     SECTION 1.12.  Governing Law..............................................    22
     SECTION 1.13.  Legal Holidays.............................................    22

ARTICLE II          Security Forms.............................................    22
     SECTION 2.01.  Forms Generally............................................    22

ARTICLE III         The Securities.............................................    23
     SECTION 3.01.  Title and Terms............................................    23
     SECTION 3.02.  Denominations..............................................    25
     SECTION 3.03.  Execution, Authentication, Delivery and Dating.............    25
     SECTION 3.04.  Temporary Securities.......................................    26
     SECTION 3.05.  Registration, Registration of Transfer and Exchange........    26
     SECTION 3.06.  Mutilated, Destroyed, Lost and Stolen Securities...........    28
     SECTION 3.07.  Payment of Interest; Interest Rights Preserved.............    29
     SECTION 3.08.  Persons Deemed Owners......................................    30
     SECTION 3.09.  Cancellation...............................................    31

                                       i
<PAGE>

     SECTION 3.10.  Right of Set Off...........................................    31
     SECTION 3.11.  CUSIP Numbers..............................................    31
     SECTION 3.12.  Deferral of Interest Payments; Notice of Deferral..........    32
     SECTION 3.13.  Paying Agent and Security Registrar........................    33
     SECTION 3.14.  Global Debenture...........................................    33
     SECTION 3.15.  Agreed Tax Treatment.......................................    35
     SECTION 3.16.  Legends....................................................    36
     SECTION 3.17.  Transfer and Exchange......................................    36

ARTICLE IV          Satisfaction and Discharge.................................    38
     SECTION 4.01.  Satisfaction and Discharge of Indenture....................    38
     SECTION 4.02.  Applications of Trust Money................................    40

ARTICLE V           Remedies...................................................    40
     SECTION 5.01.  Events of Default..........................................    40
     SECTION 5.02.  Acceleration of Maturity; Rescission and Annulment.........    42
     SECTION 5.03.  Collection of Indebtedness and Suits for Enforcement 
                    by Trustee.................................................    44
     SECTION 5.04.  Trustee May File Proofs of Claim...........................    44
     SECTION 5.05.  Trustee May Enforce Claims Without Possession of 
                    Securities.................................................    45
     SECTION 5.06.  Application of Money Collected.............................    45
     SECTION 5.07.  Limitation on Suits........................................    46
     SECTION 5.08.  Unconditional Right of Holders to Receive Principal 
                    and Interest...............................................    47
     SECTION 5.09.  Restoration of Rights and Remedies.........................    47
     SECTION 5.10.  Rights and Remedies Cumulative.............................    47
     SECTION 5.11.  Delay or Omission Not Waiver...............................    48
     SECTION 5.12.  Control by Holders.........................................    48
     SECTION 5.13.  Waiver of Past Defaults....................................    48
     SECTION 5.14.  Undertaking for Costs......................................    49
     SECTION 5.15.  Waiver of Stay or Extension Laws...........................    49
     SECTION 5.16.  Enforcement by Holders of Capital Securities...............    50

ARTICLE VI          The Trustee................................................    50
     SECTION 6.01.  Certain Duties and Responsibilities........................    50
     SECTION 6.02.  Notice of Defaults.........................................    51
     SECTION 6.03.  Certain Rights of Trustee..................................    51

                                       ii
<PAGE>
     SECTION 6.04.  Not Responsible for Recitals or Issuance of Securities.....    53
     SECTION 6.05.  May Hold Securities........................................    53
     SECTION 6.06.  Money Held in Trust........................................    53
     SECTION 6.07.  Compensation and Reimbursement.............................    53
     SECTION 6.08.  Disqualification; Conflicting Interests....................    54
     SECTION 6.09.  Corporate Trustee Required; Eligibility....................    54
     SECTION 6.10.  Resignation and Removal; Appointment of Successor..........    54
     SECTION 6.11.  Acceptance of Appointment by Successor.....................    56
     SECTION 6.12.  Merger, Conversion, Consolidation or Succession to 
                    Business...................................................    57
     SECTION 6.13.  Preferential Collection of Claims Against Company..........    57

ARTICLE VII         Holders' Lists and Reports by Trustee and Company..........    58
     SECTION 7.01.  Company to Furnish Trustee Names and Addresses of Holders..    58
     SECTION 7.02.  Preservation of Information; Communications to Holders.....    58
     SECTION 7.03.  Reports by Trustee.........................................    59
     SECTION 7.04.  Reports by Company.........................................    59
     SECTION 7.05.  Tax Reporting..............................................    60

ARTICLE VIII        Consolidation, Merger, Conveyance, Transfer or Lease.......    60
     SECTION 8.01.  Company May Consolidate, Etc., Only on Certain Terms.......    60
     SECTION 8.02.  Successor Substituted......................................    62

ARTICLE IX          Supplemental Indentures....................................    62
     SECTION 9.01.  Supplemental Indentures Without Consent of Holders.........    62
     SECTION 9.02.  Supplemental Indentures with Consent of Holders............    63
     SECTION 9.03.  Execution of Supplemental Indentures.......................    65

                                       iii
<PAGE>

     SECTION 9.04.  Effect of Supplemental Indentures..........................    65
     SECTION 9.05.  Reference in Securities to Supplemental Indentures.........    65

ARTICLE X           Covenants; Representations and Warranties..................    66
     SECTION 10.01. Payment of Principal and Interest..........................    66
     SECTION 10.02. Maintenance of Office or Agency............................    66
     SECTION 10.03. Money for Security Payments to Be Held in Trust............    67
     SECTION 10.04. Statement by Officers as to Default........................    68
     SECTION 10.05. Limitation on Dividends; Transactions with Affiliates; 
                    Covenants as to the Trust..................................    68
     SECTION 10.06. Payment of Expenses of the Trust...........................    69

ARTICLE XI          Redemption of Securities...................................    71
     SECTION 11.01. Right of Redemption........................................    71
     SECTION 11.02. Applicability of Article...................................    71
     SECTION 11.03. Election to Redeem; Notice to Trustee......................    71
     SECTION 11.04. Selection by Trustee of Securities to Be Redeemed..........    71
     SECTION 11.05. Notice of Redemption.......................................    72
     SECTION 11.06. Deposit of Redemption Price................................    73
     SECTION 11.07. Securities Payable on Redemption Date......................    73
     SECTION 11.08. Securities Redeemed in Part................................    74
     SECTION 11.09. Optional Redemption........................................    74
     SECTION 11.10. Special Event Redemption...................................    75

ARTICLE XII         Subordination of Securities................................    76
     SECTION 12.01. Agreement to Subordinate...................................    76
     SECTION 12.02. Default on Senior Indebtedness.............................    76
     SECTION 12.03. Liquidation; Dissolution; Bankruptcy.......................    77
     SECTION 12.04. Subrogation................................................    79
     SECTION 12.05. Trustee to Effectuate Subordination........................    80
     SECTION 12.06. Notice by the Company......................................    80
     SECTION 12.07. Rights of the Trustee: Holders of Senior Indebtedness......    82
     SECTION 12.08. Subordination May Not Be Impaired..........................    82
</TABLE>

                                       iv
<PAGE>

               INDENTURE, dated as of July 30, 1998, between ZENITH
          NATIONAL INSURANCE CORP., a corporation duly organized and
          existing under the laws of the State of Delaware (herein
          called the "Company"), and Norwest Bank Minnesota, National
          Association, as Trustee (herein called the "Trustee"). 


                            RECITALS OF THE COMPANY

          WHEREAS Zenith National Insurance Capital Trust I, a Delaware 
business trust (the "Trust"), formed under the Amended and Restated 
Declaration of Trust among the Company, as Sponsor, Norwest Bank Minnesota, 
National Association, as property trustee (the "Property Trustee"), and 
Wilmington Trust Company, a Delaware banking corporation, as Delaware trustee 
(the "Delaware Trustee"), and Stanley R. Zax and Fredricka Taubitz, as 
Regular Trustees (the "Regular Trustees"), dated as of July 30, 1998 (the 
"Declaration"), pursuant to the Purchase Agreement (the "Purchase Agreement") 
dated July 27, 1998, among the Company, the Trust and the Purchasers named 
therein, will issue and sell up to $75,000,000 aggregate liquidation amount 
of its 8.55% Capital Securities (the "Capital Securities") with a liquidation 
amount of $1,000 per Capital Security, having an aggregate liquidation amount 
with respect to the assets of the Trust of $75,000,000;

          WHEREAS the trustees of the Trust, on behalf of the Trust, will 
execute and deliver to the Company Common Securities evidencing an ownership 
interest in the Trust, registered in the name of the Company, in an aggregate 
amount equal to at least three percent (3%) of the capitalization of the 
Trust, equivalent to 2,320 Common Securities, with a liquidation amount of 
$1,000 per Common Security, having an aggregate liquidation amount with 
respect to the assets of the Trust of $2,320,000 (the "Common Securities");

          WHEREAS the Trust will use the proceeds from the sale of the 
Capital Securities and the Common Securities to purchase

<PAGE>

from the Company, Securities (as defined below) in an aggregate principal 
amount of $77,320,000;

          WHEREAS the Company is guaranteeing the payment of distributions on 
the Capital Securities, and payment of the Redemption Price or Special Event 
Redemption Price, as applicable (each as defined herein) and payments on 
liquidation of the Trust with respect to the Capital Securities, to the 
extent provided in the Capital Securities Guarantee Agreement (the 
"Guarantee") between the Company and Norwest Bank Minnesota, National 
Association, as Capital Securities Guarantee Trustee, for the benefit of the 
holders of the Capital Securities from time to time;

          WHEREAS the Company has duly authorized the creation of and issue 
of its 8.55% Subordinated Deferrable Interest Debentures due 2028 (the 
"Securities"), of substantially the tenor and amount hereinafter set forth 
and to provide therefor the Company has duly authorized the execution and 
delivery of this Indenture; and

          WHEREAS all things necessary to make the Securities, when executed 
by the Company and authenticated and delivered hereunder and duly issued by 
the Company, the valid obligations of the Company, and to make this Indenture 
a valid agreement of the Company, in accordance with the terms of the 
Securities and this Indenture, have been done.

          NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the 
Securities by the Holders (as defined herein) thereof, it is mutually agreed, 
for the equal and proportionate benefit of all Holders of the Securities, as 
follows:


                                       2
<PAGE>

                                   ARTICLE I

                             DEFINITIONS AND OTHER
                       PROVISIONS OF GENERAL APPLICATION

          SECTION 1.01.  DEFINITIONS.  For all purposes of this Indenture, 
except as otherwise expressly provided or unless the context otherwise 
requires:

          (1)  the terms defined in this Article have the meanings assigned 
     to them in this Article and include the plural as well as the singular;

          (2)  all other terms used herein which are defined in the Trust 
     Indenture Act, either directly or by reference therein, have the 
     meanings assigned to them therein;

          (3)  all accounting terms not otherwise defined herein have the 
     meanings assigned to them in accordance with United States generally 
     accepted accounting principles; and

          (4)  the words "herein", "hereof" and "hereunder" and other words 
     of similar import refer to this Indenture as a whole and not to any 
     particular article, section or other subdivision.

          "Act", when used with respect to any Holder, has the meaning 
specified in Section 1.04.

          "Additional Payments" means Compounded Interest and Additional 
Interest, if any.

          "Additional Interest" has the meaning specified in Section 3.01.

          "Adjusted Treasury Rate" means, with respect to any redemption 
date, the rate per annum equal to (i) the yield, under the heading which 
represents the average for the immediately prior week, appearing in the most 
recently published statistical release designated "H.15 (519)" or any 
successor publication which is published weekly by the Federal Reserve Board 
and which


                                       3
<PAGE>

establishes yields on actively traded United States Treasury securities 
adjusted to constant maturity under the caption "Treasury Constant 
Maturities," for the maturity corresponding to the Remaining Life (if no 
maturity is within three months before or after the Remaining Life, yields 
for the two published maturities most closely corresponding to the Remaining 
Life shall be interpolated and the Adjusted Treasury Rate shall be 
interpolated or extrapolated from such yields on a straight-line basis, 
rounding to the nearest month) or (ii) if such release (or any successor 
release) is not published during the week preceding the calculation date or 
does not contain such yields, the rate per annum equal to the semi-annual 
equivalent yield to maturity of the Comparable Treasury Issue, calculated 
using a price for the Comparable Treasury issue (expressed as a percentage of 
its principal amount) equal to the Comparable Treasury Price for such 
redemption date, in each case calculated on the third Business Day preceding 
the redemption date, plus in each case .25%.

          "Affiliate" of any specified Person means any other Person directly 
or indirectly controlling or controlled by or under direct or indirect common 
control with such specified Person.  For the purposes of this definition, 
"control" when used with respect to any specified Person means the power to 
direct the management and policies of such Person, directly or indirectly, 
whether through the ownership of voting securities, by contract or otherwise; 
and the terms "controlling" and "controlled" have meanings correlative to the 
foregoing.

          "Agent" means any Registrar, Security Registrar, Paying Agent or 
co-registrar.

          "Board of Directors" means either the board of directors of the 
Company or any duly authorized committee of that board.

          "Board Resolution" means a copy of a resolution certified by the 
secretary or an assistant secretary of the Company to have been duly adopted 
by the Board of Directors and to be in full force and effect on the date of 
such certification, and delivered to the Trustee.


                                       4
<PAGE>

          "Business Day" means any day other than a Saturday or a Sunday or a 
day on which banking institutions in Los Angeles, California, New York, New 
York or Minneapolis, Minnesota are authorized or required by law or executive 
order to remain closed.

          "Capital Securities" has the meaning specified in the Recitals to 
this instrument.

          "Commission" means the Securities and Exchange Commission, as from 
time to time constituted, created under the Securities Exchange Act of 1934, 
or, if at any time after the execution of this instrument such Commission is 
not existing and performing the duties now assigned to it, then the body 
performing such duties at such time.

          "Common Securities" has the meaning specified in the Recitals to 
this instrument.

          "Company" means the Person named as the "Company" in the first 
paragraph of this instrument until a successor Person shall have become such 
pursuant to the applicable provisions of this Indenture, and thereafter 
"Company" shall mean such successor Person.

          "Company Request" or "Company Order" means a written request or 
order signed in the name of the Company by its chairman of the Board of 
Directors, its vice chairman of the Board of Directors, its president or a 
vice president, and by its treasurer, an assistant treasurer, its secretary 
or an assistant secretary, and delivered to the Trustee.

          "Comparable Treasury Issue" means the United States Treasury 
security selected by the Quotation Agent as having a maturity comparable to 
the Remaining Life of the Securities to be prepaid that would be utilized, at 
the time of selection and in accordance with customary financial practice, in 
pricing new issues of corporate debt securities of comparable maturity to the 
Remaining Life of the Securities to be prepaid.  If no United States Treasury 
security has a maturity which is within a period from three months before to 
three months after a maturity


                                       5
<PAGE>

corresponding to the Remaining Life of the Securities to be prepaid, the two 
most closely corresponding United States Treasury securities shall be used as 
the Comparable Treasury Issue, and the Adjusted Treasury Rate shall be 
interpolated or extrapolated on a straight-line basis, rounding to the 
nearest month using such securities.

          "Comparable Treasury Price" means, with respect to any prepayment 
date, (i) the average of the bid and asked prices for the Comparable Treasury 
Issue (expressed in each case as a percentage of its principal amount) on the 
third Business Day preceding such prepayment date, as set forth in the daily 
statistical release (or any successor release) published by the Federal 
Reserve Bank of New York and designated "Composite 3:30 p.m. Quotations for 
U.S. Government Securities" or (ii) if such release (or any successor 
release) is not published or does not contain such prices on such Business 
Day, (A) the average of the five Reference Treasury Dealer Quotations for 
such prepayment date, after excluding the highest and lowest of such 
Reference Treasury Dealer Quotations, or (B) if the Trustee obtains fewer 
than three such Reference Treasury Dealer Quotations, the average of all such 
quotations.

          "Compounded Interest" has the meaning specified in Section 3.12.

          "Corporate Trust Office" means the principal office of the Trustee 
in Minneapolis, Minnesota, at which at any particular time its corporate 
trust business shall be administered and which at the date of this Indenture 
is Sixth & Marquette, Minneapolis, Minnesota 55479-0069 Attn: Corporate Trust 
Administration.

          "Declaration" has the meaning specified in the Recitals of this 
instrument.

          "Defaulted Interest" has the meaning specified in Section 3.07.

          "Deferral Period" has the meaning specified in Section 3.12.


                                       6
<PAGE>

          "Delaware Trustee" has the meaning given it in the Recitals of this 
instrument.

          "Depositary" has the meaning specified in the Declaration.

          "Dissolution Event" shall mean the liquidation of the Trust 
pursuant to the Declaration, and the distribution of the Securities held by 
the Property Trustee to the holders of the Trust Securities issued by the 
Trust PRO RATA in accordance with the Declaration.

          "Event of Default" has the meaning specified in Section 5.01.

          "Expiration Date" has the meaning specified in Section 1.04(d).

          "Global Debenture" has the meaning specified in Section 3.14.

          "Guarantee" has the meaning specified in the Recitals to this 
instrument.

          "Holder" means a Person in whose name a Security is registered in 
the Security Register.

          "Indenture" means this instrument as originally executed or as it 
may from time to time be supplemented or amended by one or more indentures 
supplemental hereto entered into pursuant to the applicable provisions 
hereof, including, for all purposes of this instrument and any such 
supplemental indenture, the provisions of the Trust Indenture Act that are 
deemed to be a part of and govern this instrument and any such supplemental 
indenture, respectively.

          "Interest Payment Date" has the meaning specified in Section 3.01.

          "Investment Company Event" means the receipt by the Company and the 
Trust of an opinion of counsel experienced in 


                                       7

<PAGE>

such matters, who shall not be an officer or employee of the Company or its 
Affiliates, to the effect that, as a result of the occurrence of a change in 
law or regulation or change in interpretation or application of law or 
regulation by any legislative body, court, governmental agency or regulatory 
authority (a "Change in 1940 Act Law"), the Trust is or will be considered an 
investment company that is required to be registered under the Investment 
Company Act of 1940, as amended, which Change in 1940 Act Law becomes 
effective on or after the date of original issuance of the Capital Securities.

          "Make-Whole Premium" has the meaning specified in Section 11.09.

          "Maturity", when used with respect to any Security, means the date 
on which the principal of such Security becomes due and payable as therein or 
herein provided, whether at the Stated Maturity Date or by declaration of 
acceleration, call for redemption or otherwise.

          "90 Day Period" has the meaning specified in Section 11.10.

          "Non Book-Entry Capital Securities" has the meaning specified in 
Section 3.14.

          "Officers' Certificate" means a certificate signed by the chairman 
of the Board of Directors, the vice chairman of the Board of Directors, the 
president or a vice president, and by the treasurer, an assistant treasurer, 
the secretary or an assistant secretary of the Company, and delivered to the 
Trustee.  One of the officers signing an Officers' Certificate given pursuant 
to Section 10.04 shall be the principal executive, financial or accounting 
officer of the Company.

          "Opinion of Counsel" means a written opinion of counsel, who may be 
counsel for the Company, and who shall be reasonably acceptable to the 
Trustee.

          "Outstanding", when used with respect to Securities, means, as of 
the date of determination, all Securities there-

                                       8
<PAGE>

tofore authenticated and delivered under this Indenture, EXCEPT:  (i) 
Securities theretofore canceled by the Trustee or delivered to the Trustee 
for cancellation; (ii) Securities for which payment or redemption money in 
the necessary amount has been theretofore deposited with the Trustee or any 
Paying Agent (other than the Company) in trust or set aside and segregated in 
trust by the Company (if the Company shall act as its own Paying Agent) for 
the Holders of such Securities; PROVIDED, that if such Securities are to be 
redeemed, notice of such redemption has been duly given pursuant to this 
Indenture or provision therefor satisfactory to the Trustee has been made; 
and (iii) Securities which have been paid pursuant to Section 3.06, or in 
exchange for or in lieu of which other Securities have been authenticated and 
delivered pursuant to this Indenture, other than any such Securities in 
respect of which there shall have been presented to the Trustee proof 
satisfactory to it that such Securities are held by a bona fide purchaser in 
whose hands such Securities are valid obligations of the Company; PROVIDED, 
FURTHER, that in determining whether the Holders of the requisite aggregate 
principal amount of the Securities then Outstanding have given any request, 
demand, authorization, direction, notice, consent or waiver hereunder, 
Securities owned by the Sponsor, any Trustee or any Affiliate of the Sponsor 
or any Trustee shall be disregarded and deemed not to be outstanding, except 
that (a) in determining whether any Trustee shall be protected in relying 
upon any such request, demand, authorization, direction, notice, consent or 
waiver, only Securities which such Trustee knows to be so owned shall be so 
disregarded and (b) the foregoing shall not apply at any time when all of the 
outstanding Securities are owned by the Sponsor, one or more of the Trustees 
and/or any such Affiliate.  Securities so owned which have been pledged in 
good faith may be regarded as Outstanding if the pledgee establishes to the 
satisfaction of the Regular Trustees the pledgee's right so to act with 
respect to such Securities and that the pledgee is not the Sponsor or any 
Affiliate of the Sponsor.

          "Paying Agent" means any Person authorized by the Company to pay 
the principal of or interest on any Securities on behalf of the Company.

                                       9
<PAGE>

          "Person" means any individual, corporation, company, partnership, 
joint venture, association, joint-stock company, nominee, trust, 
unincorporated organization or government or any agency or political 
subdivision thereof.

          "Predecessor Security" of any particular Security means every 
previous Security evidencing all or a portion of the same debt as that 
evidenced by such particular Security; and, for the purposes of this 
definition, any Security authenticated and delivered under Section 3.06 in 
exchange for or in lieu of a mutilated, destroyed, lost or stolen Security 
shall be deemed to evidence the same debt as the mutilated, destroyed, lost 
or stolen Security.

          "Property Trustee" has the meaning specified in the Recitals to 
this instrument.

          "Purchase Agreement" has the meaning specified in the Recitals to 
this instrument.

          "Purchasers" with respect to the Capital Securities means Credit 
Suisse First Boston Corporation, BancAmerica Robertson Stephens and 
Donaldson, Lufkin & Jenrette Securities Corporation.

          "Quotation Agent" means the Reference Treasury Dealer appointed by 
the Company.

          "Redemption Date", when used with respect to any Security to be 
redeemed, means the date fixed for such redemption by or pursuant to this 
Indenture.

          "Redemption Price" has the meaning specified in Section 11.09.

          "Reference Treasury Dealer" means each of:  (i) Credit Suisse First 
Boston Corporation, BancAmerica Roberston Stephens and Donaldson, Lufkin & 
Jenrette Securities Corporation and their respective successors; PROVIDED, 
HOWEVER, that if any of the foregoing shall cease to be a primary U.S. 
Government Securities dealer in New York City (a "Primary Treasury Dealer"), 
the

                                       10
<PAGE>

Company shall substitute therefor another Primary Treasury Dealer; and (ii) 
any other Primary Treasury Dealer selected by the Trustee after consultation 
with the Company.

          "Reference Treasury Dealer Quotations" means, with respect to each 
Reference Treasury Dealer and any prepayment date, the average, as determined 
by the Trustee, of the bid and asked prices for the Comparable Treasury Issue 
(expressed in each case as a percentage of its principal amount) quoted in 
writing to the Trustee by such Reference Treasury Dealer at 5:00 p.m., New 
York City time, on the third Business Day preceding such prepayment date.

          "Regular Record Date" has the meaning specified in Section 3.01.

          "Regular Trustee" has the meaning specified in the Recitals to this 
instrument.

          "Remaining Life" has the meaning specified in Section 11.09.

          "Responsible Officer", when used with respect to the Trustee, means 
the chairman or any vice-chairman of the board of directors, the chairman or 
any vice-chairman of the executive committee of the board of directors, the 
chairman of the trust committee, the president, any vice president, any 
assistant vice president, the treasurer, any assistant treasurer, any trust 
officer or assistant trust officer, the controller or any assistant 
controller or any other officer of the Trustee customarily performing 
functions similar to those performed by any of the above-designated officers 
and also means, with respect to an particular corporate trust matter, any 
other officer to whom such matter is referred because of his knowledge of and 
familiarity with the particular subject.

          "Restricted Security" shall mean Securities that bear or are 
required to bear the Securities Act legends set forth in Exhibit A-1 hereto.

                                       11
<PAGE>

          "Rule 144A" shall mean Rule 144A under the Securities Act, as such 
Rule may be amended from time to time, or under any similar rule or 
regulation hereafter adopted by the Commission.

          "Securities" has the meaning specified in the Recitals to this 
instrument.

          "Security Register" and "Security Registrar" have the respective 
meanings specified in Section 3.05.

          "Senior Indebtedness" means, in respect of the Company, (i) the 
principal, premium, if any, and interest in respect of (A) indebtedness of 
the Company for money borrowed and (B) indebtedness evidenced by securities, 
debentures, bonds or other similar instruments issued by the Company, (ii) 
all capital lease obligations of the Company, (iii) all obligations of the 
Company issued or assumed as the deferred purchase price of property, all 
conditional sale obligations of the Company and all obligations of the 
Company under any title retention agreement (but excluding trade accounts 
payable arising in the ordinary course of business), (iv) all obligations of 
the Company for the reimbursement of any letter of credit, banker's 
acceptance, security purchase facility or similar credit transaction, (v) all 
obligations of the type referred to in clauses (i) through (iv) above of 
other persons for the payment of which the Company is responsible or liable 
as obligor, guarantor or otherwise, (vi) all obligations of the type referred 
to in clauses (i) though (v) above of other persons secured by any lien on 
any property or asset of the Company (whether or not such obligation is 
assumed by the Company), except for (1) any such indebtedness that is by its 
terms subordinated to or PARI PASSU with the Securities and (2) any 
indebtedness (including all other debt securities) initially issued to any 
other trust, or a trustee of such trust, partnership or other entity 
affiliated with the Company that is, directly or indirectly, a financing 
vehicle of the Company (a "Financing Entity") in connection with the issuance 
by such Financing Entity of preferred securities or other similar securities 
and (vii) interest accruing subsequent to events of bankruptcy of the Company 
and its subsidiaries at the rate provided for in the documentation governing 
such Senior Indebtedness, whether or not such interest is an allowed claim 

                                       12
<PAGE>

enforceable against the debtor in a bankruptcy case under relevant bankruptcy 
law.

          "Significant Subsidiary" means a Subsidiary, including its 
Subsidiaries, which meets any of the following conditions (in each case 
determined in accordance with United States generally accepted accounting 
principles): (i) the Company's and its other Subsidiaries' investment in and 
advances to the Subsidiary exceed ten percent of the total assets of the 
Company and its Subsidiaries consolidated as of the end of the most recently 
completed fiscal year; (ii) the Company's and its other Subsidiaries' 
proportionate share of the total assets (after inter-company eliminations) of 
the Subsidiary exceeds 10 percent of the total assets of the Company and its 
Subsidiaries consolidated as of the end of the most recently completed fiscal 
year; or (iii) the Company's and its other Subsidiaries' equity interest in 
the income from continuing operations before income taxes, extraordinary 
items and cumulative effect of a change in accounting principles of the 
Subsidiary exceed ten percent of such income of the Company and its 
Subsidiaries consolidated for the most recently completed fiscal year.

          "Special Event" means a Tax Event or an Investment Company Event.

          "Special Event Adjusted Treasury Rate" means, with respect to any 
redemption date, the rate per annum equal to (i) the yield, under the heading 
which represents the average for the immediately prior week, appearing in the 
most recently published statistical release designated "H.15 (519)" or any 
successor publication which is published weekly by the Federal Reserve Board 
and which establishes yields on actively traded United States Treasury 
securities adjusted to constant maturity under the caption "Treasury Constant 
Maturities," for the maturity corresponding to the Remaining Life (if no 
maturity is within three months before or after the Remaining Life, yields 
for the two published maturities most closely corresponding to the Remaining 
Life shall be determined and the Adjusted Treasury Rate shall be interpolated 
or extrapolated from such yields on a straight-line basis, rounding to the 
nearest month) or (ii) if such release (or any successor release) is not 
published during 

                                       13
<PAGE>

the week preceding the calculation date or does not contain such yields, the 
rate per annum equal to the semi-annual equivalent yield to maturity of the 
Comparable Treasury Issue, calculated using a price for the Comparable 
Treasury issue (expressed as a percentage of its principal amount) equal to 
the Comparable Treasury Price for such redemption date, in each case 
calculated on the third Business Day preceding the redemption date, plus in 
each case (a) 2.375% if such redemption date occurs on or prior to August 1, 
1999 and (b) .50% in all other cases.

          "Special Event Make-Whole Premium" has the meaning specified in 
Section 11.10.

          "Special Event Redemption Price" has the meaning specified in 
Section 11.10.

          "Special Record Date" for the payment of any defaulted Interest 
means a date fixed by the Trustee pursuant to Section 3.07.

          "Stated Maturity Date", when used with respect to any Security or 
any installment of principal thereof or interest thereon, means the date 
specified in such Security as the fixed date on which the principal, together 
with any accrued and unpaid interest (including Compounded Interest), of such 
Security or such installment of interest is due and payable (whether the 
initial such date or if pursuant to Section 3.01 the Company elects to change 
or extend the Stated Maturity Date, such later date as is chosen by the 
Company pursuant to Section 3.01).

          "Subsidiary" of any Person means (i) a corporation more than 50% of 
the outstanding Voting Stock of which is owned, directly or indirectly, by 
such Person or by such Person and one or more Subsidiaries thereof or (ii) 
any other Person (other than a corporation) in which such Person, or one or 
more other Subsidiaries of such Person or such Person and one or more other 
Subsidiaries thereof, directly or indirectly, has at least a majority 
ownership and power to direct the policies, management and affairs thereof.

                                       14
<PAGE>

          "Tax Event" means the receipt by the Company and the Trust of an
opinion of a nationally recognized independent tax counsel experienced in such
matters, to the effect that, as a result of any amendment to, or change
(including any announced prospective change) in, the laws (or any regulations
thereunder) of the United States or any other relevant political subdivision or
taxing authority, or as a result of any official administrative written decision
or pronouncement or judicial decision interpreting or applying such laws or
regulations, which amendment or change is effective or which pronouncement or
decision is announced on or after the date of original issuance of the Capital
Securities, there is more than an insubstantial risk that (i) the Trust is, or
will be within 90 days of the date of such opinion, subject to United States
federal income tax with respect to income received or accrued on the Securities,
(ii) interest payable by the Company on the Securities is not, or within 90 days
of such opinion, will not be, deductible by the Company, in whole or in part,
for United States federal income tax purposes or (iii) the Trust is, or will be
within 90 days of the date of the opinion, subject to more than a DE MINIMIS
amount of other taxes, duties or other governmental charges.

          "Trust" has the meaning specified in the Recitals to this instrument.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean such successor Trustee.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed; PROVIDED, HOWEVER,
that in the event the Trust Indenture Act of 1939 is amended after such date,
"Trust Indenture Act" means, to the extent required by any such amendment, the
Trust Indenture Act of 1939 as so amended.

          "Trust Securities" means Common Securities and Capital Securities.

                                       15
<PAGE>

          SECTION 1.02.  COMPLIANCE CERTIFICATES AND OPINIONS.  Upon any 
application or request by the Company to the Trustee to take any action under 
any provision of this Indenture, the Company shall furnish to the Trustee 
such certificates and opinions as may be required under the Trust Indenture 
Act or reasonably requested by the Trustee in connection with such 
application or request.  Each such certificate or opinion shall be given in 
the form of an Officers' Certificate, if to be given by an officer of the 
Company, or an Opinion of Counsel, if to be given by counsel, and shall 
comply with the applicable requirements of the Trust Indenture Act and any 
other applicable requirement set forth in this Indenture.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include:

          (1)  a statement that each individual signing such certificate or
     opinion has read such covenant or condition and the definitions herein
     relating thereto;

          (2)  a brief statement as to the nature and scope of the examination
     or investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3)  a statement that, in the opinion of each such individual, he has
     made or caused to be made such examination or investigation as is necessary
     to enable him to express an informed opinion as to whether or not such
     covenant or condition has been complied with; and

          (4)  a statement as to whether, in the opinion of each such
     individual, such condition or covenant has been complied with.

          SECTION 1.03.  FORM OF DOCUMENTS DELIVERED TO TRUSTEE.  In any case 
where several matters are required to be certified by, or covered by an 
opinion of, any specified Person, it is not necessary that all such matters 
be certified by, or covered by the opinion of, only one such Person, or that 
they be so cer-

                                       16
<PAGE>

tified or covered by only one document, but one such Person may certify or 
give an opinion with respect to some matters and one or more other such 
Persons as to other matters, and any such Person may certify or give an 
opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous.  Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an Officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

          SECTION 1.04.  ACTS OF HOLDERS; RECORD DATES.  (a)  Any request, 
demand, authorization, direction, notice, consent, waiver or other action 
provided by this Indenture to be given to or taken by Holders may be embodied 
in and evidenced by one or more instruments of substantially similar tenor 
signed by such Holders in person or by an agent duly appointed in writing; 
and, except as herein otherwise expressly provided, such action shall become 
effective when such instrument or instruments is or are delivered to the 
Trustee and, where it is hereby expressly required, to the Company.  Such 
instrument or instruments (and the action embodied therein and evidenced 
thereby) are herein sometimes referred to as the "Act" of the Holders signing 
such instrument or instruments.  Proof of execution of any such instrument or 
of a writing appointing any such agent shall be sufficient for any purpose of 
this Indenture and (subject to 

                                       17
<PAGE>

Section 6.01) shall be conclusive in favor of the Trustee and the Company, if 
made in the manner provided in this Section.

          (b)  The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof.  Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority.  The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee or the Company, as the case may be, deems
sufficient.

          (c)  The Company may, in the circumstances permitted by the Trust
Indenture Act, fix any day as the record date for the purpose of determining the
Holders of Outstanding Securities entitled to give, make or take any request,
demand, authorization, direction, notice, consent, waiver or other action, or to
vote on any action, authorized or permitted to be given or taken by Holders.  If
not set by the Company prior to the first solicitation of a Holder made by any
Person in respect of any such action, or, in the case of any such vote, prior to
such vote, the record date for any such action or vote shall be the 30th day
(or, if later, the date of the most recent list of Holders required to be
provided pursuant to Section 7.01) prior to such first solicitation or vote, as
the case may be.  With regard to any record date, only the Holders on such date
(or their duly designated proxies) shall be entitled to give or take, or vote
on, the relevant action.

          (d)  The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities entitled to join in the giving
or making of (i) any notice of default, (ii) any declaration of acceleration
referred to in Section 5.02, (iii) any request to institute proceedings referred
to in Section 5.07(2) or (iv) any direction referred to in Section 5.12.  If any
record date is set pursuant to this para-

                                       18
<PAGE>

graph, the Holders of Outstanding Securities on such record date, and no 
other Holders, shall be entitled to join in such notice, declaration, request 
or direction, whether or not such Holders remain Holders after such record 
date; PROVIDED, that no such action shall be effective hereunder unless taken 
on or prior to the date (the "Expiration Date") set by the Trustee by which 
any such determination shall be made by Holders of the requisite principal 
amount of Outstanding Securities on such record date. Nothing in this 
paragraph shall be construed to prevent the Trustee from setting a new record 
date for any action for which a record date has previously been set pursuant 
to this paragraph (whereupon the record date previously set shall 
automatically and with no action by any Person be canceled and of no effect), 
and nothing in this paragraph shall be construed to render ineffective any 
action taken by Holders of the requisite principal amount of Outstanding 
Securities of the date such action is taken.  Promptly after any record date 
is set pursuant to this paragraph, the Trustee, at the Company's expense, 
shall cause notice of such record date, the proposed action by Holders and 
the applicable Expiration Date to be given to the Company in writing and to 
each Holder of Securities in the manner set forth in Section 1.06.

          (e)  The ownership of Securities shall be proved by the Security
Register.

          (f)  Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Security.

          (g)  Without limiting the foregoing, a Holder entitled hereunder to
give or take any such action with regard to any particular Security may do so
with regard to all or any part of the principal amount of such Security or by
one or more duly appointed agents each of which may do so pursuant to such

                                       19
<PAGE>

appointment with regard to all or any different part of such principal amount.

          SECTION 1.05.  NOTICES, ETC., TO THE TRUSTEE AND THE COMPANY.  Any
request, demand, authorization, direction, notice, consent, waiver or Act of
Holders or other document provided or permitted by this Indenture to be made
upon, given or furnished to, or filed with, 

          (1)  the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at its Corporate Trust Office, Attention:  Corporate
     Trust Administration, or

          (2)  the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided) if
     in writing and mailed, first-class postage prepaid, to the Company
     addressed to it at the address of its principal office specified in the
     first paragraph of this instrument or at any other address previously
     furnished in writing to the Trustee by the Company.

          SECTION 1.06.  NOTICE TO HOLDERS; WAIVER. Where this Indenture 
provides for notice to Holders of any event, such notice shall be 
sufficiently given (unless otherwise herein expressly provided) if in writing 
and mailed, first-class postage prepaid, to each Holder affected by such 
event, at such Holder's address as it appears in the Security Register, not 
later than the latest date (if any), and not earlier than the earliest date 
(if any), prescribed for the giving of such notice.  In any case where notice 
to Holders is given by mail, neither the failure to mail such notice, nor any 
defect in any notice so mailed, to any particular Holder shall affect the 
sufficiency of such notice with respect to other Holders.  Any notice when 
mailed to a Holder in the aforesaid manner shall be conclusively deemed to 
have been received by such Holder whether or not actually received by such 
Holder. Where this Indenture provides for notice in any manner, such notice 
may be waived in writing by the Person entitled to receive such notice, 
either before or after the event, and such waiver shall be the equivalent of 
such notice. 

                                       20
<PAGE>

Waivers of notice by Holders shall be filed with the Trustee, but such filing
shall not be a condition precedent to the validity of any action taken in
reliance upon such waiver.

          In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice by mail,
then such notification as shall be made with the approval of the Regular
Trustees shall constitute sufficient notification for every purpose hereunder.

          SECTION 1.07.  CONFLICT WITH TRUST INDENTURE ACT.  This Indenture 
is not required to and will not be qualified under the Trust Indenture Act.  
However, this Indenture is intended to comply with the requirements of 
Sections 310 through 317, inclusive, of the Trust Indenture Act and such 
provisions are specifically incorporated herein. If any provision hereof 
limits, qualifies or conflicts with a provision of the Trust Indenture Act 
specifically incorporated herein, then the provisions of this Indenture shall 
control; provided that any penalties under the Trust Indenture Act relating 
to noncompliance shall not be applicable to this Indenture.

          SECTION 1.08.  EFFECT OF HEADINGS AND TABLE OF CONTENTS.  The 
article and section headings herein and the Table of Contents are for 
convenience only and shall not affect the construction hereof.

          SECTION 1.09.  SUCCESSORS AND ASSIGNS.  All covenants and 
agreements in this Indenture by the Company and the Trustee shall bind each 
of their respective successors and assigns, whether so expressed or not.

          SECTION 1.10.  SEPARABILITY CLAUSE.  In case any provision in this 
Indenture or in the Securities shall be invalid, illegal or unenforceable, 
the validity, legality and enforceability of the remaining provisions shall 
not in any way be affected or impaired thereby.

          SECTION 1.11.  BENEFITS OF INDENTURE.  Nothing in this Indenture or 
in the Securities, express or implied, shall give to any Person, other than 
the parties hereto and their successors 

                                       21
<PAGE>

hereunder, the holders of Senior Indebtedness (to the extent provided 
herein), the holders of Capital Securities (to the extent provided herein) 
and the Holders of Securities, any benefit or any legal or equitable right, 
remedy or claim under this Indenture.

          SECTION 1.12.  GOVERNING LAW.  THIS INDENTURE AND THE SECURITIES 
SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE 
OF NEW YORK, WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

          SECTION 1.13.  LEGAL HOLIDAYS.  In any case where any Interest 
Payment Date, Redemption Date or Stated Maturity Date of any Security shall 
not be a Business Day, then (notwithstanding any other provision of this 
Indenture or of the Securities) payment of interest or principal or 
conversion of the Securities need not be made on such date, but may be made 
on the next succeeding Business Day (except that, if such Business Day is in 
the next succeeding calendar year, such Interest Payment Date, Redemption 
Date or Stated Maturity Date, as the case may be, shall be the immediately 
preceding Business Day) with the same force and effect as if made on the 
Interest Payment Date or Redemption Date, or at the Stated Maturity Date or 
on such last day for conversion; PROVIDED, that no interest shall accrue for 
the period from and after such Interest Payment Date, Redemption Date or 
Stated Maturity Date, as the case may be.

                                      ARTICLE II

                                    SECURITY FORMS

          SECTION 2.01.  FORMS GENERALLY.  The Securities and the Trustee's
certificates of authentication shall be substantially in the form of Exhibit A-1
which is hereby incorporated in and expressly made a part of this Indenture. The
Securities may have notations, legends or endorsements required by law, stock
exchange rule, agreements to which the Company is subject, if any, or usage
(provided that any such notation, legend or endorsement is in a form acceptable
to the Company).  The Company shall furnish any such legend not contained in
Exhibit A-1 to the 

                                       22
<PAGE>

Trustee in writing. Each Security shall be dated the date of its 
authentication. The terms and provisions of the Securities set forth in 
Exhibit A-1 are part of the terms of this Indenture and to the extent 
applicable, the Company and the Trustee, by their execution and delivery of 
this Indenture, expressly agree to such terms and provisions and to be bound 
thereby.

          The definitive Securities shall be typewritten or printed, 
lithographed or engraved or produced by any combination of these methods or 
may be produced in any other manner permitted by the rules of any securities 
exchange on which the Securities may be listed, all as determined by the 
officers executing such Securities, as evidenced by their execution of such 
Securities.

                                     ARTICLE III

                                    THE SECURITIES

          SECTION 3.01.  TITLE AND TERMS.  The aggregate principal amount of
Securities that may be authenticated and delivered under this Indenture is
limited to $77,320,000 (except for Securities authenticated and delivered upon
registration of transfer of, or in exchange for, or in lieu of, other Securities
pursuant to Section 3.04, 3.05, 3.06, 9.05, or 11.08), which amount shall be as
set forth in the Company Order for the authentication and delivery of the
Securities pursuant to Section 3.03 hereof.

          The Securities shall be known and designated as the "8.55% 
Subordinated Deferrable Interest Debentures due 2028" of the Company.  Their 
initial Stated Maturity Date shall be August 1, 2028.  They shall bear 
interest at the rate of 8.55% per annum, from July 30, 1998 or from the most 
recent Interest Payment Date (as defined below) to which interest has been 
paid or duly provided for, as the case may be, payable semi-annually (subject 
to deferral as set forth herein), in arrears, on February 1 and August 1 
(each an "Interest Payment Date") of each year, commencing February 1, 1999 
until the principal thereof is paid or made available for payment, and they 
shall be paid to the Person in whose name the Security is registered at the 
close of 

                                       23
<PAGE>

business on the regular record date for such interest installment, which 
shall be the close of business on the date which is the fifteenth day of the 
month immediately preceding the month in which the Interest Payment Date 
occurs (the "Regular Record Date").  Interest will compound semi-annually and 
will accrue to the extent permitted by law at the rate of 8.55% per annum on 
any interest installment not paid when due or during an extension of an 
interest payment period as set forth in Section 3.12 hereof.

          The amount of interest payable for any period will be computed on the
basis of a 360-day year of twelve 30-day months, and, for any period of less
than a full calendar month, the number of days elapsed in such month.

          If at any time the Trust is required to pay any additional taxes,
duties or other governmental charges of whatever nature (other than withholding
taxes) imposed by the United States or any other taxing authority, then, in any
case, the Company will pay as additional interest on the Securities ("Additional
Interest"), such additional amounts as may be necessary in order that the net
amounts received and retained by the Trust after paying any such taxes, duties,
assessments and other governmental charges will be not less than the amounts the
Trust would have received had no such taxes, duties, assessments or other
governmental charges been imposed.

          The principal of and interest on the Securities shall be payable at
the office or agency of the Company in the United States maintained for such
purpose and at any other office or agency maintained by the Company for such
purpose in such coin or currency of the United States of America as at the time
of payment is legal tender for payment of public and private debts; PROVIDED,
HOWEVER, that at the option of the Company, payment of interest may be made by
check mailed to the address of the Person entitled thereto as such address shall
appear in the Security Register.

          The Securities shall be redeemable as provided in Article XI hereof.

                                       24
<PAGE>

          The Securities shall be subordinated in right of payment to Senior
Indebtedness as provided in Article XII hereof.

          SECTION 3.02.  DENOMINATIONS.  The Securities shall be issuable 
only in registered form without coupons and only in denominations of 
principal amount of $100,000 (before giving effect to any partial redemption) 
and integral multiples of $1,000 above $100,000.

          SECTION 3.03.  EXECUTION, AUTHENTICATION, DELIVERY AND DATING.  The 
Securities shall be executed on behalf of the Company by its chairman of the 
Board of Directors, its vice chairman of the Board of Directors, its 
president or one of its vice presidents, under its corporate seal reproduced 
thereon attested by its secretary or one of its assistant secretaries.  The 
signature of any of these officers on the Securities may be manual or 
facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities executed by the Company to
the Trustee for authentication, together with a Company Order for the
authentication and delivery of such Securities; and the Trustee in accordance
with such Company Order shall authenticate and make available for delivery such
Securities as provided in this Indenture and not otherwise.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has been duly authenticated and delivered hereunder.

                                       25
<PAGE>

          SECTION 3.04.  TEMPORARY SECURITIES.  Pending the preparation of 
definitive Securities, the Company may execute, and upon Company Order the 
Trustee shall authenticate and deliver, temporary Securities which are 
printed, lithographed, typewritten, mimeographed or otherwise produced, in 
any authorized denomination, substantially of the tenor of the definitive 
Securities in lieu of which they are issued and with such appropriate 
insertions, omissions, substitutions and other variations as the officers 
executing such Securities may determine, as evidenced by their execution of 
such Securities.

          Except in the case of temporary Securities in global form, each of
which shall be exchanged in accordance with the provisions thereof, if temporary
Securities are issued, the Company will cause definitive Securities to be
prepared without unreasonable delay.  After the preparation of definitive
Securities, the temporary Securities shall be exchangeable for definitive
Securities upon surrender of the temporary Securities at any office or agency of
the Company designated pursuant to Section 10.02, without charge to the Holder. 
Upon surrender for cancellation of any one or more temporary Securities, the
Company shall execute and the Trustee shall authenticate and make available for
delivery in exchange therefor a like principal amount of definitive Securities
of authorized denominations.  Until so exchanged the temporary Securities shall
in all respects be entitled to the same benefits under this Indenture as
definitive Securities.

          SECTION 3.05.  REGISTRATION, REGISTRATION OF TRANSFER AND EXCHANGE. 
(a)  GENERAL.  The Company shall cause to be kept at the Corporate Trust 
Office of the Trustee a register (the register maintained in such office and 
in any other office or agency designated pursuant to Section 10.02 being 
herein sometimes collectively referred to as the "Security Register") in 
which, subject to such reasonable regulations as it may prescribe, the 
Company shall provide for the registration of Securities and of transfers of 
Securities.  The Trustee is hereby appointed "Security Registrar" for the 
purpose of registering securities and transfers of Securities as herein 
provided.

                                       26
<PAGE>

          Subject to Section 3.17 herein, upon surrender for registration of
transfer of any Security (except a Security in global form) at an office or
agency of the Company designated pursuant to Section 10.02 for such purpose, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Securities of
any authorized denominations and of a like aggregate principal amount.

          At the option of the Holder, Securities (except a Security in global
form) may be exchanged for other Securities of any authorized denominations and
of a like aggregate principal amount, upon surrender of the Securities to be
exchanged at such office or agency.  Whenever any Securities are so surrendered
for exchange, the Company shall execute, and the Trustee shall authenticate and
make available for delivery, the Securities which the Holder making the exchange
is entitled to receive.

          All Securities issued upon registration of transfer or exchange of
Securities shall be the valid obligations of the Company, evidencing the same
debt, and entitled to the same benefits under this Indenture as the Securities
surrendered upon such registration of transfer or exchange.

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company or the Trustee) be duly
endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 3.04, 9.05 or 11.08 not involving any transfer.

          Neither the Company nor the Trustee shall be required (i) in the case
of a partial redemption of the Securities, to 

                                       27
<PAGE>

issue, register the transfer of or exchange any Security during a period 
beginning at the opening of business 15 days before the day of the mailing of 
a notice of redemption of Securities selected for redemption under Section 
11.04 and ending at the close of business on the day of such mailing and (ii) 
to register the transfer of or any Security so selected for redemption in 
whole or in part, except the unredeemed portion of any Security being 
redeemed in part.

          SECTION 3.06.  MUTILATED, DESTROYED, LOST AND STOLEN SECURITIES.  
If any mutilated Security is surrendered to the Trustee, the Company shall 
execute and the Trustee shall authenticate and deliver in exchange therefor a 
new Security of like tenor and principal amount and bearing a number not 
contemporaneously outstanding.

          If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any Security
and (ii) such security or indemnity as may be required by them to save each of
them and any agent of either of them harmless, then, in the absence of the
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of like tenor and principal amount and bearing a number
not contemporaneously outstanding. 

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Security, pay such Security.

          Upon the issuance of any new Security under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustees) connected therewith.

          Every new Security issued pursuant to this Section in lieu of any
mutilated, destroyed, lost or stolen Security shall 

                                       28
<PAGE>

constitute an original contractual obligation of the Company, whether or not 
the mutilated, destroyed, lost or stolen Security shall be at any time 
enforceable by anyone, and shall be entitled to all the benefits of this 
Indenture equally and proportionately with any and all other Securities duly 
issued hereunder.

          The provisions of this Section are exclusive and shall preclude (to 
the extent lawful) all other rights and remedies with respect to the 
replacement or payment of mutilated, destroyed, lost or stolen Securities.

          SECTION 3.07.  PAYMENT OF INTEREST; INTEREST RIGHTS PRESERVED.  
Interest on any Security which is payable, and is punctually paid or duly 
provided for, on any Interest Payment Date shall be paid to the Person in 
whose name that Security (or one or more Predecessor Securities) is 
registered at the close of business on the Regular Record Date. 

          Any interest on any Security which is payable, but is not 
punctually paid or duly provided for, on any Interest Payment Date (herein 
called "Defaulted Interest") shall forthwith cease to be payable to the 
Holder on the relevant Regular Record Date by virtue of having been such 
Holder, and such Defaulted Interest may be paid by the Company, at its 
election in each case, as provided in clause (1) or (2) below:

          (1)  The Company may elect to make payment of any Defaulted Interest
     to the Persons in whose names the Securities (or their respective
     Predecessor Securities) are registered at the close of business on a
     Special Record Date for the payment of such Defaulted Interest, which shall
     be fixed in the following manner.  The Company shall notify the Trustee in
     writing of the amount of Defaulted Interest proposed to be paid on each
     Security and the date of the proposed payment, and at the same time the
     Company shall deposit with the Trustee for such deposit prior to the date
     of the proposed payment, such money when deposited to be held in trust for
     the benefit of the Persons entitled to such Defaulted Interest as in this
     clause provided. Thereupon the Trustee shall fix a Special Record Date for
     the payment of such Defaulted Interest which shall be not more 

                                       29
<PAGE>

     than 15 days and not less than 10 days prior to the date of the proposed 
     payment and not less than 10 days after the receipt by the Trustee of 
     the notice of the proposed payment.  The Trustee shall promptly notify 
     the Company of such Special Record Date and, in the name and at the 
     expense of the Company, shall cause notice of the proposed payment of 
     such Defaulted Interest and the Special Record Date therefor to be 
     mailed, first-class postage prepaid, to each Holder at his address as it 
     appears in the Security Register, not less than 10 days prior to such 
     Security Record Date.  Notice of the proposed payment of such Defaulted 
     Interest and the Special Record Date therefor having been so mailed, 
     such Defaulted Interest shall be paid to the Persons in whose names the 
     Securities (or their respective Predecessor Securities) are registered 
     at the close of business on such Special Record Date and shall no longer 
     be payable pursuant to the following clause (2).

          (2)  The Company may make payment of any Defaulted Interest in any
     other lawful manner not inconsistent with the requirements of any
     securities exchange on which the Securities may be listed, and, if so
     listed, upon such notice as may be required by such exchange (or as may be
     required by the Trustee if the Securities are not listed), if, after notice
     given by the Company to the Trustee of the proposed payment pursuant to
     this clause, such manner of payment shall be deemed practicable by the
     Trustee.

          Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest accrued
and unpaid, and to accrue (including, in each such case, Compounded Interest),
which were carried by such other security.

          SECTION 3.08.  PERSONS DEEMED OWNERS.  Prior to due presentment of 
a Security for registration of transfer, the Company, the Trustee and any 
agent of the Company or the Trustee may treat the Person in whose name such 
Security is registered as the owner of such Security for the purpose of 
receiving payment of principal of and (subject to Section 3.07) interest 
(including 

                                       30
<PAGE>

Compounded Interest) on such Security and for all other purposes whatsoever, 
whether or not such Security be overdue, and neither the Company, the Trustee 
nor any agent of the Company or the Trustee shall be affected by notice to 
the contrary.

          SECTION 3.09.  CANCELLATION.  All Securities surrendered for 
payment, redemption, registration of transfer or exchange or conversion 
shall, if surrendered to any Person other than the Trustee, be delivered to 
the Trustee and shall be promptly canceled by it.  The Company may at any 
time deliver to the Trustee for cancellation any Securities previously 
authenticated and delivered hereunder which the Company may have acquired in 
any manner whatsoever, and all Securities so delivered shall be promptly 
canceled by the Trustee.  No Securities shall be authenticated in lieu of or 
in exchange for any Securities canceled as provided in this Section, except 
as expressly permitted by this Indenture.  All canceled Securities held by 
the Trustee shall be disposed of as directed by a Company Order; PROVIDED, 
HOWEVER, that the Trustee shall not be required to destroy the certificates 
representing such canceled Securities.

          SECTION 3.10.  RIGHT OF SET OFF.  Notwithstanding anything to the 
contrary in this Indenture, the Company shall have the right to set off any 
payment it is otherwise required to make hereunder to the extent the Company 
has theretofore made, or is concurrently on the date of such payment making, 
a payment in respect of such required payment under the Guarantee.

          SECTION 3.11.  CUSIP NUMBERS.  The Company in issuing the 
Securities may use "CUSIP" numbers (if then generally in use), and, if so, 
the Trustee shall use "CUSIP" numbers in notices of redemption as a 
convenience to Holders; PROVIDED, that any such notice may state that no 
representation is made as to the correctness of such numbers either as 
printed on the Securities or as contained in any notice of a redemption and 
that reliance may be placed only on the other identification numbers printed 
on the Securities, and any such redemption shall not be affected by any 
defect in or omission of such numbers.  The Company shall notify the Trustee 
in writing promptly of any change in the CUSIP numbers.

                                       31
<PAGE>

          SECTION 3.12.  DEFERRAL OF INTEREST PAYMENTS; NOTICE OF DEFERRAL.  
(a)  The Company shall have the right, at any time during the term of the 
Securities, from time to time, so long as no Event of Default (or an event 
which would be an Event of Default with the giving of required notice or the 
passage of time) has occurred and is continuing, to defer payments of 
interest for successive periods not exceeding 10 consecutive semi-annual 
periods and not extending beyond the Stated Maturity Date (each such period, 
a "Deferral Period").  To the extent permitted by applicable law, interest, 
the payment of which has been deferred because of the deferral of the 
interest payment period pursuant to this Section 3.12, will bear interest 
thereon at 8.55% compounded semi-annually for each semi-annual period of the 
Deferral Period ("Compounded Interest").  At the end of each Deferral Period, 
the Company shall pay all interest and Additional Payments then accrued and 
unpaid on the Securities that shall be payable to the Holders of the 
Securities in whose names the Securities are registered in the Security 
Register on the first Regular Record Date after the end of the Deferral 
Period. Before the termination of any Deferral Period, the Company may 
further extend such period, so long as no Event of Default (or an event which 
would be an Event of Default with the giving of required notice or the 
passage of time) has occurred and is continuing; PROVIDED, that such period 
together with all such further extensions thereof shall not exceed 10 
consecutive semi-annual periods or extend beyond the Stated Maturity Date of 
the Securities.  Upon the termination of any Deferral Period and upon the 
payment of all interest and Additional Payments then due, the Company may 
commence a new Deferral Period, subject to the foregoing requirements.  No 
interest shall be due and payable during an Deferral Period except at the end 
thereof.

          (b)  If the Property Trustee is the sole holder of the Securities, 
the Company shall give the Holder of the Securities and the Trustee notice of 
its selection of a Deferral Period at least one Business Day prior to the 
earlier of (i) the Interest Payment Date or (ii) the date the Trust is 
required to give notice to any automated or exchange quotation system or 
other applicable self-regulatory organization or to holders of the Capital 
Securities of the record date or the date such 

                                       32
<PAGE>

distributions are payable, but in any event not less than ten Business Days 
prior to such record date.

          (c)  If the Property Trustee is not the sole holder of the 
Securities, the Company shall give the Holders of the Securities and the 
Trustee notice of its selection of a Deferral Period at least ten Business 
Days prior to the earlier of (i) the Interest Payment Date or (ii) the date 
the Trust is required to give notice to any applicable self-regulatory 
organization or to Holders of the Securities on the record date or the date 
such distributions are payable, but in any event not less than two Business 
Days prior to such record date.

          (d)  The semi-annual period in which any notice is given pursuant 
to paragraphs (b) and (c) hereof shall be counted as one of the 10 
semi-annual periods permitted in the maximum Deferral Period permitted under 
paragraph (a) hereof.

          SECTION 3.13.  PAYING AGENT AND SECURITY REGISTRAR.  The Trustee 
will initially act as Paying Agent and Security Registrar.  The Company may 
change any Paying Agent, Security Registrar or co-registrar without prior 
notice.  The Company will notify the Trustee upon any such change.  The 
Company or any of its Affiliates may act in any such capacity.

          SECTION 3.14.  GLOBAL DEBENTURE.  (a)  In connection with a 
distribution of the Securities to Holders of the Trust Securities pursuant to 
the Declaration:

           (i)  The Securities in certificated form to be distributed to the
     holders of Capital Securities may be presented to the Trustee by the
     Property Trustee in exchange for a global Security in an aggregate
     principal amount equal to the aggregate principal amount of all Outstanding
     Securities (a "Global Debenture"), to be registered in the name of the
     Depositary, or its nominee, and delivered by the Trustee to the Depositary
     for crediting to the accounts of its participants pursuant to the
     instructions of the Regular Trustees (as defined in the Declaration).  The
     Company upon any such presentation shall execute a Global Debenture in such
     aggregate principal amount and deliver the same to the 

                                       33
<PAGE>

     Trustee for authentication and delivery in accordance with this Indenture. 
     Payments on the Securities issued as a Global Debenture will be made in 
     accordance with Section 4.02.

          (ii)  If any Capital Securities are held in non book-entry
     certificated form, the Securities in certificated form may be presented to
     the Trustee by the Property Trustee and any Capital Security certificate
     which represents Capital Securities other than Capital Securities held by
     the Depositary or its nominee ("Non Book-Entry Capital Securities") will be
     deemed to represent beneficial interests in Securities presented to the
     Trustee by the Property Trustee having an aggregate principal amount equal
     to the aggregate principal amount of the Non Book-Entry Capital Securities
     until such Capital Security certificates are presented to the Security
     Registrar for transfer or reissuance at which time such Capital Security
     certificates will be canceled and a Debenture, registered in the name of
     the holder of the Capital Security certificate or the transferee of the
     holder of such Capital Security certificates, as the case may be, with an
     aggregate principal amount of, with an interest rate identical to the
     distribution rate of, and accrued and unpaid interest equal to accrued and
     unpaid distributions, on the Capital Security certificate canceled, will be
     executed by the Company and delivered to the Trustee for authentication and
     delivery in accordance with this Indenture.  On issuance of such
     Securities, Securities with an equivalent aggregate principal amount that
     were presented by the Property Trustee to the Trustee will be deemed to
     have been canceled.

          (b)  Unless and until it is exchanged for Securities in registered
certificate form, a Global Debenture may be transferred, in whole but not in
part, only by the Depositary to a nominee of the Depositary or by a nominee of
the Depositary to the Depositary or another nominee of the Depositary or by the
Depositary or any such nominee to a successor Depositary selected or approved by
the Company or a nominee of such successor Depositary.

                                       34
<PAGE>

          (c)  If at any time the Depositary for the Securities notifies the
Company that it is unwilling or unable to continue as Depositary for the
Securities or if at any time the Depositary for the Securities shall no longer
be registered or in good standing as a clearing agency under the Securities
Exchange Act of 1934, as amended, or other applicable statute or regulation, at
a time at which the Depositary is required to be so registered to act as
Depositary for the Securities, and a successor Depositary is not appointed by
the Company within 90 days after the Company receives such notice or becomes
aware of such condition, as the case may be, the Company will execute, and,
subject to this Indenture, the Trustee, upon written notice from the Company,
will authenticate and deliver the Securities in definitive registered form
without coupons, in authorized denominations, and in the aggregate principal
amount equal to the principal amount of the Global Debenture in exchange for
such Global Debenture.  In addition, the Company, in its sole discretion, may at
any time determine that the Securities shall no longer be represented by a
Global Debenture.  In such event the Company will execute, and subject to this
Indenture, the Trustee, upon receipt of an Officers' Certificate evidencing such
determination by the Company, will authenticate and deliver the Securities in
definitive registered form without coupons, in authorized denominations and in
aggregate principal amount equal to the principal amount of the Global Debenture
in exchange for such Global Debenture.  Upon the exchange of the Global
Debenture for such Debentures in definitive registered form without coupons, in
authorized denominations, the Global Debenture shall be canceled by the Trustee.
Such Securities in definitive registered form issued in exchange for the Global
Debenture shall be registered in such names and in such authorized denominations
as the Depositary, pursuant to instructions from its direct or indirect
participants or otherwise, shall instruct the Trustee in writing.  The Trustee
shall deliver such registered certificated Securities in definitive form in
exchange for the Global Debenture to the Depositary for delivery to the Persons
in whose names such Securities are so registered.

          SECTION 3.15.  AGREED TAX TREATMENT.  Each Security issued 
hereunder shall provide that the Company and, by its acceptance of a Security 
or a beneficial interest therein, the 

                                       35

<PAGE>

Holder of, and any Person that acquires a beneficial interest in, such 
Security agree to treat such Security as indebtedness for United States 
federal, state and local tax purposes.

          SECTION 3.16.  LEGENDS. Except as determined by the Company in 
accordance with applicable law, each Security shall bear the applicable 
legends relating to restrictions on transfer pursuant to Section 3.17 of this 
Indenture and to the securities laws in substantially the form set forth on 
Exhibit A-1 hereto.

          SECTION 3.17.  TRANSFER AND EXCHANGE.  (a) The Securities may not 
be transferred except in compliance with the legend contained in Exhibit A-1 
unless otherwise determined by the Company in accordance with applicable law. 
The Securities may be transferred only in blocks having a principal amount 
(before giving effect to any partial redemption) of not less than $100,000.  
Any such transfer of the Securities in a block having a principal amount 
(before giving effect to any partial redemption) of less than $100,000 shall 
be deemed to be void and of no legal effect whatsoever.  Any such transferee 
shall be deemed not to be holder of such Securities for any purpose, 
including but not limited to the receipt of payment on such Securities, and 
such transferee shall be deemed to have no interest whatsoever in such 
Securities. Prior to any distribution of the Securities following a 
Dissolution Event, the Company and the Trustee shall enter into a 
supplemental indenture pursuant to Section 9.01 to provide for the transfer 
restrictions and procedures with respect to the Securities substantially 
similar to those contained in the Declaration to the extent applicable in the 
circumstances existing at such time.

          (b) Upon surrender for registration of transfer of any Security at 
the office or agency of the Company maintained for the purpose pursuant to 
Section 3.05, the Company shall execute, and the Trustee shall authenticate 
and deliver, in the name of the designated transferee or transferees, one or 
more new Securities of the same series, of any authorized denominations and 
of a like aggregate principal amount.

          At the option of the Holder, Securities of any series may be 
exchanged for other Securities of the same series, of any 

                                       36
<PAGE>

authorized denominations and of a like aggregate principal amount, upon 
surrender of the Securities to be exchanged at such office or agency.  
Whenever any Securities are so surrendered for exchange, the Company shall 
execute, and the Trustee shall authenticate and deliver, the Securities which 
the holder making the exchange is entitled to receive.

          Every Security presented or surrendered for registration of 
transfer or exchange shall (if so required by the Company or the Trustee) be 
duly endorsed, or be accompanied by a written instrument of transfer in form 
satisfactory to the Company and the Security Registrar duly executed, by the 
holder thereof or his attorney duly authorized in writing.

          All Non Book-Entry Capital Securities and Global Debentures issued 
upon any registration of transfer or exchange of Non Book-Entry Capital 
Securities or Global Debentures shall be the valid obligations of the 
Company, evidencing the same debt, and entitled to the same benefits under 
this Indenture, as the Non Book-Entry Capital Securities or Global Debentures 
surrendered upon such registration of transfer or exchange.

          No service charge shall be made to a holder for any registration of 
transfer or exchange, but the Company may require payment of a sum sufficient 
to cover any transfer tax or similar governmental charge payable in 
connection therewith.

          Each Holder agrees to indemnify the Company and the Trustee against 
any liability that may result from the transfer, exchange or assignment of 
such Holder's Security in violation of any provision of this Indenture and/or 
applicable United States federal or state securities law.

          The Trustee shall have no obligation or duty to monitor, determine 
or inquire as to compliance with any restriction on transfer imposed under 
this Indenture or under applicable law with respect to any transfer of any 
interest in any Security (including any transfers between or among Depositary 
participants or beneficial owners of interests in any Global Debenture) other 
than to require delivery of such certificates and other documentation or 
evidence as are expressly required by, 

                                       37
<PAGE>

and to do so if and when expressly required by the terms of, this Indenture, 
and to examine the same to determine substantial compliance as to form with 
the express requirements hereof.

          The Company shall not be required to (i) issue, register the 
transfer of or exchange Securities during a period beginning at the opening 
of business 15 days before the day of mailing of a notice of redemption or 
any notice of selection of Securities for redemption under Article XI hereof 
and ending at the close of business on the day of such mailing; or (ii) 
register the transfer of or exchange any Security so selected for redemption 
in whole or in part, except the unredeemed portion of any Security being 
redeemed in part.

                                      ARTICLE IV

                              SATISFACTION AND DISCHARGE

          SECTION 4.01.  SATISFACTION AND DISCHARGE OF INDENTURE.  This 
Indenture shall cease to be of further effect (except as to any surviving 
rights of registration of transfer or exchange of Securities herein expressly 
provided for), and the Trustee, upon a Company Request and at the expense of 
the Company, shall execute proper instruments acknowledging satisfaction and 
discharge of this Indenture, when

          (1)  either

               (A)  all Securities theretofore authenticated and delivered
          (other than (i) Securities which have been mutilated, destroyed, lost
          or stolen and which have been replaced or paid as provided in Section
          3.06 and (ii) Securities for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 10.03) have been delivered to the Trustee for
          cancellation; or

                                       38
<PAGE>

               (B)  all such Securities not theretofore delivered to the Trustee
          for cancellation

                    (i)   have become due and payable, or

                    (ii)  will become due and payable at the Stated Maturity 
               Date within one year, or

                    (iii) are to be called for redemption within one year
               under arrangements satisfactory to the Trustee for the giving of
               notice of redemption by the Trustee in the name, and at the
               expense, of the Company

          and the Company, in the case of (i), (ii) or (iii) above, has
          deposited or caused to be deposited with the Trustee as trust funds in
          trust for the purpose an amount sufficient to pay and discharge the
          entire indebtedness on such Securities not theretofore delivered to
          the Trustee for cancellation, for principal and interest and
          Additional Payments, if any, to the date of such deposit (in the case
          of Securities which have become due and payable) or to the Stated
          Maturity Date or Redemption Date, as the case may be;

          (2)  the Company has paid or caused to be paid all other sums payable
     hereunder by the Company; and

          (3)  the Company has delivered to the Trustee an Officer's Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the satisfaction and discharge of this
     Indenture have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the 
obligations of the Company to the Trustee under Section 6.07 and, if money 
shall have been deposited with the Trustee pursuant to subclause (B) of 
clause (1) of this Section, the obligations of the Trustee under Section 4.02 
and the last paragraph of Section 10.03 shall survive.

                                       39
<PAGE>

          SECTION 4.02.  APPLICATIONS OF TRUST MONEY.  Subject to the 
provisions of the last paragraph of Section 10.03, all money deposited with 
the Trustee pursuant to Section 4.01 shall be held in trust and applied by 
it, in accordance with the provisions of the Securities and this Indenture, 
to the payment, either directly or through any Paying Agent (including the 
Company acting as its own Paying Agent) as the Trustee may determine, to the 
Persons entitled thereto, of the principal and interest (or premium, if any) 
for whose payment such money has been deposited with the Trustee.

                                      ARTICLE V

                                       REMEDIES

          SECTION 5.01.  EVENTS OF DEFAULT.  "Event of Default," wherever 
used herein, means any one of the following events that has occurred and is 
continuing (whatever the reason for such Event of Default and whether it 
shall be occasioned by the provisions of Article XII or be voluntary or 
involuntary or be effected by operation of law or pursuant to any judgment, 
decree or order of any court or any order, rule or regulation of any 
administrative or governmental body):

          (1)  default in the payment of any interest upon any Security,
     including any Compounded Interest in respect thereof, when it becomes due
     and payable, and continuance of such default for a period of 30 days;
     PROVIDED, that a valid extension of the Deferral Period by the Company
     pursuant to this Indenture shall not constitute a default in the payment of
     interest for this purpose; or

          (2)  default in the payment of the principal of (or premium, if any,
     on) any Security when due whether at the Stated Maturity Date, upon
     redemption, by declaration of acceleration or otherwise; or

          (3)  default in the performance, or breach, of any covenant or
     warranty of the Company in this Indenture (other than a default in whose
     performance or whose breach is 

                                       40
<PAGE>

     elsewhere in this Section specifically dealt with), and continuance of 
     such default or breach for a period of 90 days after there has been 
     given, by registered or certified mail, to the Company by the Trustee or 
     to the Company and the Trustee by the Holders of at least 25% in 
     principal amount of the Outstanding Securities, a written notice 
     specifying such default or breach and requiring it to be remedied and 
     stating that such notice is a "Notice of Default" hereunder; or

          (4)  entry by a court having jurisdiction in the premises of (A) a
     decree or order for relief in respect of the Company or any Significant
     Subsidiary in an involuntary case or proceeding under any applicable
     federal or state bankruptcy, insolvency, reorganization or other similar
     law or (B) a decree or order adjudging the Company or any Significant
     Subsidiary a bankrupt or insolvent, or approving as properly filed a
     petition seeking reorganization, arrangement, adjustment or composition of
     or in respect of the Company or any Significant Subsidiary under any
     applicable federal or state law, or appointing a custodian, receiver,
     liquidator, assignee, trustee, rehabilitator, sequestrator or other similar
     official of the Company, or any Significant Subsidiary or ordering the
     winding up or liquidation of the Company's or any Significant Subsidiary's
     affairs, and the continuance of any such decree or order for relief or any
     such other decree or order unstayed and in effect for a period of 60
     consecutive days; or 

          (5)  the commencement by the Company or any Significant Subsidiary of
     a voluntary case or proceeding under any applicable federal or state
     bankruptcy, insolvency, reorganization or other similar law or of any other
     case or proceeding to be adjudicated as bankrupt or insolvent, or the
     consent by the Company or any Significant Subsidiary or to the entry of a
     decree or order for relief in respect of itself in an involuntary case or
     proceeding under any applicable federal or state bankruptcy, insolvency,
     reorganization or other similar law or to the commencement of any
     bankruptcy or insolvency case or proceeding against the Company or any
     Significant Subsidiary, or the filing by the 

                                       41
<PAGE>

     Company or any Significant Subsidiary of a petition or answer or consent 
     seeking reorganization or relief under any applicable federal or state 
     law, or the consent by the Company or any Significant Subsidiary to the 
     filing of such petition or to the appointment of or taking possession by 
     a custodian, receiver, liquidator, assignee, trustee, rehabilitator, 
     sequestrator or other similar official of the Company or any Significant 
     Subsidiary or of substantially all of the property of the Company or any 
     Significant Subsidiary, or the making by the Company or any Significant 
     Subsidiary of an assignment for the benefit of creditors, or the 
     admission by the Company or any Significant Subsidiary in writing of its 
     inability to pay its debts generally as they become due, or the taking 
     of corporate action by the Company or any Significant Subsidiary in 
     furtherance of any such action; or

          (6)  the voluntary or involuntary dissolution, winding up or
     termination of the Trust, except in connection with (i) the distribution of
     Securities to holders of Capital Securities in liquidation or redemption of
     their interests in the Trust, (ii) the redemption of all of the outstanding
     Capital Securities of the Trust or (iii) certain mergers, consolidations or
     amalgamations, each as permitted by the Declaration.

          SECTION 5.02.  ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT.  
If an Event of Default occurs and is continuing, then and in every such case, 
the Trustee or the Holders of not less than 25% in principal amount of the 
Outstanding Securities may declare the principal of all the Securities and 
any other amounts payable hereunder (including any Additional Interest) to be 
due and payable immediately, by a notice in writing to the Company (and to 
the Trustee if given by Holders); PROVIDED, that, if the Property Trustee is 
the sole Holder of the Securities and if upon an Event of Default, the 
Trustee or the Holders of not less than 25% in principal amount of the 
Outstanding Securities fail to declare the principal of all the Securities to 
be due and payable, the holders of at least 25% in aggregate liquidation 
amount of Capital Securities then outstanding shall have such right by a 
notice in writing to the Company and the Trustee; and upon any 

                                       42
<PAGE>

such declaration such principal and all accrued interest shall become due and 
payable; PROVIDED, that the payment of principal, premium, if any, and 
interest on such Securities shall remain subordinated to the extent provided 
in Article XII.  If an Event of Default specified in any one of clauses (4), 
(5) or (6) of Section 5.01 occurs, all unpaid principal and accrued interest 
on the Outstanding Securities shall become and be immediately due and payable 
without any declaration or other act on the part of the Trustee, the Property 
Trustee, any Holder or any holder of Capital Securities.

          At any time after such a declaration of acceleration has been made 
and before a judgment or decree for payment of the money due has been 
obtained by the Trustee as provided in this Article hereinafter, the Holders 
of a majority in aggregate principal amount of the Outstanding Securities, by 
written notice to the Company and the Trustee, may rescind and annul such 
declaration and its consequences if:

          (1)  the Company has paid or deposited with the Trustee a sum
     sufficient to pay

               (A)  all overdue interest (including all Additional Payments) on
          all Securities,

               (B)  the principal of any Securities which have become due
          otherwise than by such declaration of acceleration and interest
          thereon at the rate borne by the Securities, and applicable premium,
          if any, and

               (C)  all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel;

     and

          (2)  all Events of Default, other than the non-payment of the
     principal of Securities which have become due solely by such declaration of
     acceleration, have been cured or waived as provided in Section 5.13.

                                       43
<PAGE>

          No such rescission shall affect any subsequent default or impair any
right consequent thereon.

          SECTION 5.03.  COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT 
BY TRUSTEE.  The Company covenants that if

          (1)  default is made in the payment of any interest (including any
     Additional Payments) on any Security when such interest becomes due and
     payable and such default continues for a period of 30 days, or

          (2)  default is made in the payment of the principal or premium, if
     any, of any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of 
the Holders of such Securities, the whole amount then due and payable on such 
Securities for principal, premium, if any, and interest (including any 
Additional Payments) and, to the extent that payment thereof shall be legally 
enforceable, interest on any overdue principal or premium, if any, and on any 
overdue interest (including any Additional Payments), at the rate borne by 
the Securities, and, in addition thereto, all amounts owing to the Trustee 
under Section 6.07.

          If an Event of Default occurs and is continuing, the Trustee may in 
its discretion proceed to protect and enforce its rights and the rights of 
the Holders by such appropriate judicial proceedings as the Trustee shall 
deem most effectual to protect and enforce any such rights, whether for the 
specific enforcement of any covenant or agreement in this Indenture or in aid 
of the exercise of any power granted herein, or to enforce any other proper 
remedy.

          SECTION 5.04.  TRUSTEE MAY FILE PROOFS OF CLAIM.  In case of any 
judicial proceeding relative to the Company (or any other obligor upon the 
Securities), its property or its creditors, the Trustee shall be entitled and 
empowered, by intervention in such proceeding or otherwise, to take any and 
all actions authorized under the Trust Indenture Act in order to have claims 
of the Holders and the Trustee allowed in any such proceeding.  In 
particular, the Trustee shall be authorized to 

                                       44
<PAGE>

collect and receive any moneys or other property payable or deliverable on 
any such claims and to distribute the same; and any custodian, receiver, 
assignee, trustee, liquidator, sequestrator or other similar official in any 
such judicial proceeding is hereby authorized by each Holder to make such 
payments to the Trustee and, in the event that the Trustee shall consent to 
the making of such payments directly to the Holders, to pay to the Trustee 
any amount due it, and any predecessor Trustee, under Section 6.07.

          No provision of this Indenture shall be deemed to authorize the 
Trustee to authorize or consent to or accept or adopt an behalf of any Holder 
any plan of reorganization, arrangement, adjustment or composition affecting 
the Securities or the rights of any Holder thereof or to authorize the 
Trustee to vote in respect of the claim of any Holder in any such proceeding.

          SECTION 5.05.  TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF 
SECURITIES.  All rights of action and claims under this Indenture or the 
Securities may be prosecuted and enforced by the Trustee without the 
possession of any of the Securities or the production thereof in any 
proceeding relating thereto, and any such proceeding instituted by the 
Trustee shall be brought in its own name as trustee of an express trust, and 
any recovery of judgment shall, after provision for the payment of all the 
amounts owing to the Trustee and any predecessor Trustee under Section 6.07 
the reasonable compensation, expenses, disbursements and advances of the 
Trustee, its agents and counsel, be for the ratable benefit of the Holders of 
the Securities in respect of which such judgment has been recovered.

          SECTION 5.06.  APPLICATION OF MONEY COLLECTED.  Subject to Article 
XII, any money collected by the Trustee pursuant to this Article shall be 
applied in the following order, at the date or dates fixed by the Trustee 
and, in case of the distribution of such money on account of principal or 
interest (including any Additional Payments), upon presentation of the 
Securities and the notation thereon of the payment if only partially paid and 
upon surrender thereof if fully paid:

                                       45
<PAGE>

          FIRST:  To the payment of all amounts due the Trustee and any
     predecessor Trustee under Section 6.07;

          SECOND:  To the payment of the amounts then due and unpaid for
     principal and premium, if any, (including any Additional Payments) on the
     Securities in respect of which or for the benefit of which such money has
     been collected, ratably, without preference or priority of any kind,
     according to the amounts due and payable on such Securities for principal
     and premium, if any, and interest (including any Additional Payments)
     respectively; and

          THIRD:  The balance, if any, to the Person or Persons entitled
     thereto.

          SECTION 5.07.  LIMITATION ON SUITS.  Subject to Section 5.08, no 
Holder of any Security shall have any right to institute any proceeding, 
judicial or otherwise, with respect to this Indenture, or for the appointment 
of a receiver or trustee, or for any other remedy hereunder, unless

          (1)  such Holder has previously given written notice to the Trustee of
     a continuing Event of Default;

          (2)  the Holders of not less than 25% in aggregate principal amount of
     the Outstanding Securities shall have made written request to the Trustee
     to institute proceedings in respect of such Event of Default in its own
     name as Trustee hereunder;

          (3)  such Holder or Holders have offered to the Trustee reasonable
     indemnity against the costs, expenses and liabilities to be incurred in
     compliance with such request;

          (4)  the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and

          (5)  no direction inconsistent with such written request has been
     given to the Trustee during such 60-day 

                                       46
<PAGE>

     period by the Holders of a majority in principal amount of the Outstanding 
     Securities;

it being understood and intended that no one or more Holders shall have any 
right in any manner whatever by virtue of, or by availing of, any provision 
of this Indenture to affect, disturb or prejudice the rights of any other 
Holders, or to obtain or to seek to obtain priority or preference over any 
other Holders or to enforce any right under this Indenture, except in the 
manner herein provided and for the equal and ratable benefit of all the 
Holders.

          SECTION 5.08.  UNCONDITIONAL RIGHT OF HOLDERS TO RECEIVE PRINCIPAL 
AND INTEREST. Notwithstanding any other provision in this Indenture, the 
Holder of any Security shall have the right, which is absolute and 
unconditional, to receive payment of the principal of and (subject to Section 
3.07) interest (including any Additional Payments) and premium, if any, on 
such Security on the respective Stated Maturities expressed in such Security 
(or, in the case of redemption, on the Redemption Date) and to institute suit 
for the enforcement of any such payment, and such rights shall not be 
impaired without the consent of such Holder.  If the Property Trustee is the 
sole Holder of the Securities, any holder of the Capital Securities shall 
have the right to institute suit on behalf of the Trust for the enforcement 
of any such payment.

          SECTION 5.09.  RESTORATION OF RIGHTS AND REMEDIES.  If the Trustee 
or any Holder has instituted any proceeding to enforce any right or remedy 
under this Indenture and such proceeding has been discontinued or abandoned 
for any reason, or has been determined adversely to the Trustee or to such 
Holder, then and in every such case, subject to any determination in such 
proceeding, the Company, the Trustee and the Holders shall be restored 
severally and respectively to their former positions hereunder and thereafter 
all rights and remedies of the Trustee and the Holders shall continue as 
though no such proceeding had been instituted.

          SECTION 5.10.  RIGHTS AND REMEDIES CUMULATIVE.  Except as otherwise 
provided with respect to the replacement or payment 

                                       47
<PAGE>

of mutilated, destroyed, lost or stolen Securities in the last paragraph of 
Section 3.06, no right or remedy herein conferred upon or reserved to the 
Trustee or to the Holders is intended to be exclusive of any other right or 
remedy, and every right and remedy shall, to the extent permitted by law, be 
cumulative and in addition to every other right and remedy given hereunder or 
now or hereafter existing at law or in equity or otherwise.  The assertion or 
employment of any right or remedy hereunder, or otherwise, shall not prevent 
the concurrent assertion or employment of any other appropriate right or 
remedy.

          SECTION 5.11.  DELAY OR OMISSION NOT WAIVER.  No delay or omission 
of the Trustee or of any Holder of any Security to exercise any right or 
remedy accruing upon any Event of Default shall impair any such right or 
remedy or constitute a waiver of any such Event of Default or an acquiescence 
therein.  Every right and remedy given by this Article or by law to the 
Trustee or to the Holders may be exercised from time to time, and as often as 
may be deemed expedient, by the Trustee or by the Holders, as the case may be.

          SECTION 5.12.  CONTROL BY HOLDERS.  The Holders of a majority in 
principal amount of the Outstanding Securities shall have the right to direct 
the time, method and place of conducting any proceeding for any remedy 
available to the Trustee or exercising any trust or power conferred on the 
Trustee; PROVIDED, that 

          (1)  such direction shall not be in conflict with any rule of law or
     with this Indenture; and

          (2)  the Trustee may take any other action deemed proper by the
     Trustee which is not inconsistent with such direction.

          SECTION 5.13.  WAIVER OF PAST DEFAULTS.  Subject to Section 9.02 
hereof, the Holders of not less than a majority in principal amount of the 
Outstanding Securities may on behalf of the Holders of all the Securities 
waive any past default hereunder and its consequences, except a default 

                                       48
<PAGE>

          (1)  in the payment of the principal of, premium, if any, or interest
     (including any Additional Payments) on any Security (unless such default
     has been cured and a sum sufficient to make all such payments due otherwise
     than by acceleration has been deposited with the Trustee); or

          (2)  in respect of a covenant or provision hereof which under Article
     IX cannot be modified or amended without the consent of the Holder of each
     Outstanding Security affected.

          Upon any such waiver, such default shall cease to exist, and any 
Event of Default arising therefrom shall be deemed to have been cured, for 
every purpose of this Indenture; but no such waiver shall extend to any 
subsequent or other default or impair any right consequent thereon.

          SECTION 5.14.  UNDERTAKING FOR COSTS.  In any suit for the 
enforcement of any right or remedy under this Indenture, or in any suit 
against the Trustee for any action taken, suffered or omitted by it as 
Trustee, a court may require any party litigant in such suit to file an 
undertaking to pay the costs of such suit, and may assess costs against any 
such party litigant, in the manner and to the extent provided in the Trust 
Indenture Act; PROVIDED, that neither this Section nor the Trust Indenture 
Act shall be deemed to authorize any court to require such an undertaking or 
to make such an assessment in any suit instituted by the Company or the 
Trustee or in any suit for the enforcement of the right to receive the 
principal of and interest (including any Additional Payments) and premium, if 
any, on any Security.

          SECTION 5.15.  WAIVER OF STAY OR EXTENSION LAWS.  The Company 
covenants (to the extent that it may lawfully do so) that it will not at any 
time insist upon, or plead, or in any manner whatsoever claim or take the 
benefit or advantage of, any stay or extension law wherever enacted, now or 
at any time hereafter in force, which may affect the covenants or the 
performance of this Indenture; and the Company (to the extent that it may 
lawfully do so) hereby expressly waives all benefit or advantage of any such 
law and covenants that it will not hinder, delay or impede the execution of 
any power herein granted to the Trustee, but will 

                                       49

<PAGE>

suffer and permit the execution of every such power as though no such law had 
been enacted.

          SECTION 5.16.  ENFORCEMENT BY HOLDERS OF CAPITAL SECURITIES. 
Notwithstanding anything to the contrary contained herein and in addition to 
any other rights of the holders of the Capital Securities provided herein or 
in the Declaration, if the Property Trustee fails to enforce its rights under 
the Securities, the holders of at least 25% of the liquidation amount of the 
outstanding Capital Securities may institute any legal proceeding directly 
against the Company to enforce the Property Trustee's rights, as Holder of 
the Securities, without first instituting any legal proceeding against the 
Property Trustee or any other Person.  Notwithstanding the foregoing, if an 
Event of Default as defined in the Declaration has occurred and is continuing 
and such event is attributable to the failure of the Company to pay interest 
or principal on the Securities issued to the Trust on the date such interest 
or principal is otherwise payable, then a holder of Capital Securities may 
institute a proceeding directly against the Company for enforcement of 
payment to the holder of the Capital Securities of the principal of or 
interest on the Securities on or after the respective due dates specified in 
the Securities (taking into account any Deferral Period).

                                      ARTICLE VI

                                     THE TRUSTEE

          SECTION 6.01.  CERTAIN DUTIES AND RESPONSIBILITIES. (a)  Except 
during the continuance of an Event of Default, the Trustee undertakes to 
perform such duties and only such duties as are specifically set forth in 
this Indenture, and no implied covenants or obligations shall be read into 
this Indenture against the Trustee.

          (b)  In case an Event of Default has occurred and is continuing, 
the Trustee shall exercise such of the rights and powers vested in it by this 
Indenture, and use the same degree of care and skill in their exercise, as a 
prudent person would 

                                       50
<PAGE>

exercise or use under the circumstances in the conduct of his own affairs.

          (c)  Notwithstanding the foregoing, (i) the duties and 
responsibilities of the Trustee shall be as provided by the sections of the 
Trust Indenture Act specifically incorporated herein and (ii) no provision of 
this Indenture shall require the Trustee to expend or risk its own funds or 
otherwise incur any financial liability in the performance of any of its 
duties hereunder, or in the exercise of any of its rights or powers, if it 
shall have reasonable grounds for believing that repayment of such funds or 
adequate indemnity against such risk or liability is not reasonably assured 
to it. Whether or not therein expressly so provided, every provision of this 
Indenture relating to the conduct or affecting the liability of or affording 
protection to the Trustee shall be subject to the provisions of this Section.

          SECTION 6.02.  NOTICE OF DEFAULTS.  The Trustee shall give the 
Holders notice of any default hereunder as and to the extent provided by the 
Trust Indenture Act.  For the purpose of this Section, the term "default" 
means any event which is, or after notice or lapse of time or both would 
become, an Event of Default.

          SECTION 6.03.  CERTAIN RIGHTS OF TRUSTEE. Subject to the provisions 
of Section 6.01:

          (a)  the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document believed by it to be genuine and to have been signed or presented
     by the proper party or parties;

          (b)  any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order and any
     resolution of the Board of Directors may be sufficiently evidenced by a
     Board Resolution;

                                       51
<PAGE>

          (c)  whenever in the administration of this Indenture the Trustee
     shall deem it desirable that a matter be proved or established prior to
     taking, suffering or omitting any action hereunder, the Trustee (unless
     other evidence be herein specifically prescribed) may, in the absence of
     bad faith on its part, rely upon an Officers' Certificate;

          (d)  the Trustee may consult with counsel of its choice and the advice
     of such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (e)  the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders pursuant to this Indenture, unless such Holders shall
     have offered to the Trustee reasonable security or indemnity against the
     costs, expenses and liabilities which might be incurred by it in compliance
     with such request or direction;

          (f)  the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document, but the Trustee, in its discretion, may take such further inquiry
     or investigation into such facts or matters as it may see fit, and, if the
     Trustee shall determine to make such further inquiry or investigation, it
     shall be entitled to reasonable examination of the books, records and
     premises of the Company, personally or by agent or attorney;

          (g)  the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with the due care
     by it hereunder; and

                                       52
<PAGE>

          (h)  the Trustee shall not be liable for any action taken, suffered,
     or omitted to be taken by it in good faith, without negligence or willful
     misconduct, and reasonably believed by it to be authorized or within the
     discretion or rights or powers conferred upon it by this Indenture.

          SECTION 6.04.  NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF 
SECURITIES.  The recitals contained herein and in the Securities, except the 
Trustee's certificates of authentication, shall be taken as the statements of 
the Company, and the Trustee assumes no responsibility for their correctness. 
 The Trustee makes no representations as to the validity or sufficiency of 
this Indenture or of the securities.  The Trustee shall not be accountable 
for the use or application by the Company of the Securities or the proceeds 
thereof.

          SECTION 6.05.  MAY HOLD SECURITIES.  The Trustee, any Paying Agent, 
any Security Registrar or any other agent of the Company, in its individual 
or any other capacity, may become the owner or pledgee of Securities and, 
subject to Sections 6.08 and 6.13, may otherwise deal with the Company with 
the same rights it would have if it were not Trustee, Paying Agent, Security 
Registrar, or such other agent.

          SECTION 6.06.  MONEY HELD IN TRUST.  Money held by the Trustee in 
trust hereunder need not be segregated from other funds except to the extent 
required by law.  The Trustee shall be under no liability for interest on any 
money received by it hereunder except as otherwise agreed with the Company.

          SECTION 6.07.  COMPENSATION AND REIMBURSEMENT.  The Company, in its 
capacity as borrower with respect to the Securities, agrees:

          (1)  to pay to the Trustee from time to time such reasonable
     compensation as the Company and the Trustee shall from time to time agree
     in writing for all services rendered by it hereunder (which compensation
     shall not be limited by any provision of law in regard to the compensation
     of a trustee of an express trust);

                                       53
<PAGE>

          (2)  except as otherwise expressly provided herein, to reimburse the
     Trustee upon its request for all reasonable expenses, fees, disbursements
     and advances incurred or made by the Trustee in accordance with any
     provision of this Indenture (including the reasonable compensation and the
     expenses and disbursements of its agents and counsel), except any such
     expense, disbursement or advance as may be attributable to its negligence
     or bad faith; and

          (3)  to indemnify the Trustee and any predecessor Trustee for, and to
     hold it harmless against, any loss, liability or expense incurred without
     negligence or bad faith on its part, arising out of or in connection with
     the acceptance or administration of this trust, including the costs and
     expenses of defending itself against any claim or liability in connection
     with the exercise or performance of any of its powers or duties hereunder.

          SECTION 6.08.  DISQUALIFICATION; CONFLICTING INTERESTS.  If the 
Trustee has or shall acquire a conflicting interest within the meaning of the 
Trust Indenture Act, the Trustee shall either eliminate such interest or 
resign, to the extent and in the manner provided by the Trust Indenture Act 
and this Indenture.

          SECTION 6.09.  CORPORATE TRUSTEE REQUIRED; ELIGIBILITY. There shall 
at all times be a Trustee hereunder which shall be a Person that is eligible 
pursuant to the Trust Indenture Act to act as such and has a combined capital 
and surplus of at least $50,000,000 and has a Corporate Trust Office in the 
United States of America.  If such Person publishes reports of condition at 
least annually, pursuant to law or to the requirements of said supervising or 
examining authority, then for the purpose of this Section, the combined 
capital and surplus of such Person shall be deemed to be its combined capital 
and surplus as set forth in its most recent report of condition so published. 
If at any time the Trustee shall cease to be eligible in accordance with the 
provisions of this Section, It shall resign immediately in the manner and 
with the effect hereinafter specified in this Article.

          SECTION 6.10.  RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR.  
(a)  No resignation or removal of the Trustee and no

                                       54
<PAGE>

appointment of a successor Trustee pursuant to this Article shall become 
effective until the acceptance of appointment by the successor Trustee under 
Section 6.11.

          (b)  The Trustee may resign at any time by giving written notice 
thereof to the Company.  If an instrument of acceptance by a successor 
Trustee shall not have been delivered to the Trustee within 30 days after the 
giving of such notice of resignation, the resigning Trustee may petition any 
court of competent jurisdiction for the appointment of a successor Trustee.

          (c)  The Trustee may be removed at any time by Act of the Holders 
of a majority in principal amount of the Outstanding Securities, delivered to 
the Trustee and to the Company.  If an instrument of acceptance by a 
successor Trustee shall not have been delivered to the Trustee within 30 days 
after the giving of such notice of resignation, the resigning Trustee may 
petition any court of competent jurisdiction for the appointment of a 
successor Trustee.

          (d)  If at any time:

          (1)  the Trustee shall fail to comply with Section 6.08 after written
     request therefor by the Company or by any Holder who has been a bona fide
     Holder of a Security for at least six months, or

          (2)  the Trustee shall cease to be eligible under Section 6.09 and
     shall fail to resign after written request therefor by the Company or by
     any such Holder,

          (3)  the Trustee shall become incapable of acting or shall be adjudged
     a bankrupt or insolvent or a receiver of the Trustee or of its property
     shall be appointed or any public officer shall take charge or control of
     the Trustee or of its property or affairs for the purpose of
     rehabilitation, conservation or liquidation,

then, in any such case, (i) the Company may remove the Trustee, or (ii) 
subject to Section 5.14, any Holder who has been a bona 

                                       55
<PAGE>

fide Holder of a Security for at least six months may, on behalf of himself 
and all others similarly situated, petition any court of competent 
jurisdiction for the removal of the Trustee and the appointment of a 
successor Trustee.

          (e)  If the Trustee shall resign, be removed or become incapable of 
acting, or if a vacancy shall occur in the office of Trustee for any cause, 
the Company, by a Board Resolution, shall promptly appoint a successor 
Trustee.  If, within one year after such resignation, removal or 
incapability, or the occurrence of such vacancy, a successor Trustee shall be 
appointed by Act of the Holders of a majority in principal amount of the 
Outstanding Securities delivered to the Company and the retiring Trustee, the 
successor Trustee so appointed shall, forthwith upon its acceptance of such 
appointment, become the successor Trustee and supersede the successor Trustee 
appointed by the Company. If no successor Trustee shall have been so 
appointed by the Company or the Holders and accepted appointment in the 
manner hereinafter provided, any Holder who has been a bona fide Holder of a 
Security for at least six months may, on behalf of himself and all others 
similarly situated, petition any court of competent jurisdiction for the 
appointment of a successor Trustee.

          (f)  The Company shall give written notice of each resignation and 
each removal of the Trustee and each appointment of a successor Trustee to 
all Holders in the manner provided in Section 1.06.  Each notice shall 
include the name of the successor Trustee and the address of its Corporate 
Trust Office. 

          SECTION 6.11.  ACCEPTANCE OF APPOINTMENT BY SUCCESSOR.  Every 
successor Trustee appointed hereunder shall execute, acknowledge and deliver 
to the Company and to the retiring Trustee an instrument accepting such 
appointment, and thereupon the resignation or removal of the retiring Trustee 
shall become effective and such successor Trustee, without any further act, 
deed or conveyance, shall become vested with all the rights, powers, trusts 
and duties of the retiring Trustee; PROVIDED, that on request of the Company 
or the successor Trustee, such retiring Trustee shall, upon payment of its 
charges, execute and deliver an instrument transferring to such successor 
Trustee all the rights, powers and trusts of the retiring Trustee and shall 
duly 

                                       56
<PAGE>

assign, transfer and deliver to such successor Trustee all property and money 
held by such retiring Trustee hereunder.  Upon request of any such successor 
Trustee, the Company shall execute any and all instruments required to more 
fully and certainly vest in and confirm to such successor Trustee all such 
rights, powers and trusts.

          No successor Trustee shall accept its appointment unless at the 
time of such acceptance such successor Trustee shall be qualified and 
eligible under this Article.

          SECTION 6.12.  MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO 
BUSINESS.  Any Person into which the Trustee may be merged or converted or 
with which it may be consolidated, or any Person resulting from any merger, 
conversion or consolidation to which the Trustee shall be a party, or any 
Person succeeding to all or substantially all the corporate trust business of 
the Trustee, shall be the successor of the Trustee hereunder, provided such 
Person shall be otherwise qualified and eligible under this Article, without 
the execution or filing of any paper or any further act on the part of any of 
the parties hereto. In the case any Securities shall have been authenticated, 
but not delivered, by the Trustee then in office, any successor by merger, 
conversion or consolidation to such authenticating Trustee may adopt such 
authentication and deliver the Securities so authenticated with the same 
effect as if such successor Trustee had itself authenticated such Securities.

          SECTION 6.13.  PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.  
If and when the Trustee shall be or become a creditor of the Company (or any 
other obligor upon the Securities), the Trustee shall be subject to the 
provisions of the Trust Indenture Act regarding the collection of claims 
against the Company (or any such other obligor).

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<PAGE>


                                     ARTICLE VII

                   HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

          SECTION 7.01.  COMPANY TO FURNISH TRUSTEE NAMES AND ADDRESSES OF 
HOLDERS.  The Company will furnish or cause to be furnished to the Trustee 

          (a)  semi-annually, not later than January 15 and July 15 in each
     year, a list, in such form as the Trustee may reasonably require, of the
     names and addresses of the Holders as of the date not more than 15 days
     prior to the delivery thereof, and

          (b)  at such other times as the Trustee may request in writing, within
     30 days after the receipt by the Company of any such request, a list of
     similar form and content as of a date not more than 15 days prior to the
     time such list is furnished;

EXCLUDING from any such list names and addresses received by the Trustee in 
its capacity as Security Registrar.

          SECTION 7.02.  PRESERVATION OF INFORMATION; COMMUNICATIONS TO 
HOLDERS.  (a)  The Trustee shall preserve, in as current a form as is 
reasonably practicable, the names and addresses of Holders contained in the 
most recent list furnished to the Trustee as provided in Section 7.01 and the 
names and addresses of Holders received by the Trustee in its capacity as 
Security Registrar.  The Trustee may destroy any list furnished to it as 
provided in Section 7.01 upon receipt of a new list so furnished.

          (b)  The rights of Holders to communicate with other Holders with 
respect to their rights under this Indenture or under the Securities, and the 
corresponding rights and duties of the Trustee, shall be as provided by the 
Trust Indenture Act.

          (c)  Every Holder of Securities, by receiving and holding the same, 
agrees with the Company and the Trustee that neither the Company nor the 
Trustee nor any agent of either of 

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<PAGE>

them shall be held accountable by reason of any disclosure of information as 
to names and addresses of Holders made pursuant to the Trust Indenture Act.

          SECTION 7.03.  REPORTS BY TRUSTEE.  (a)  Within 60 days after 
August 1 of each year, commencing August 1, 1999, the Trustee shall transmit 
by first-class mail to Holders such reports concerning the Trustee and its 
actions under this Indenture as may be required pursuant to the Trust 
Indenture Act in the manner provided pursuant thereto.

          (b)  A copy of each such report shall, at the time of such 
transmission to Holders, be filed by the Trustee with each stock exchange 
upon which the Securities are listed, if any, with the Company.  The Company 
will notify the Trustee when the Securities are listed on any stock exchange.

          SECTION 7.04.  REPORTS BY COMPANY. (a)  The Company covenants and 
agrees to file with the Trustee, within 15 days after the date on which the 
Company is required to file the same with the Commission, copies of the 
annual reports and of the information, documents and other reports (or copies 
of such portions of any of the foregoing as the Commission may from time to 
time by rules and regulations prescribe) which the Company may be required to 
file with the Commission pursuant to Section 13 or Section 15(d) of the 
Exchange Act; or, if the Company is not required to file information, 
documents or reports pursuant to either of such Sections, then to file with 
the Trustee such of the supplementary and periodic information, documents and 
reports which may be required pursuant to Section 13 of the Exchange Act in 
respect of a security listed and registered on a national securities exchange 
as may be prescribed from time to time in such rules and regulations.

          (b)  The Company covenants and agrees to file with the Trustee and 
the Commission, in accordance with the rules and regulations prescribed from 
time to time by the Commission, such additional information, documents and 
reports with respect to compliance by the Company with the conditions and 
covenants provided for in this Indenture as may be required from time to time 
by such rules and regulations.

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<PAGE>

          (c)  The Company covenants and agrees to transmit by mail to all 
Holders of Securities, as the names and addresses of such Holders appear upon 
the Security Register, within 30 days after the filing thereof with the 
Trustee, such summaries of any information, documents and reports required to 
be filed by the Company pursuant to subsections (a) and (b) of this Section 
7.04 as may be required by rules and regulations prescribed from time to time 
by the Commission.

          (d)  Delivery of such reports, information and documents to the 
Trustee is for informational purposes only and the Trustee's receipt of such 
shall not constitute constructive notice of any information contained therein 
or determinable from information contained therein, including the Company's 
compliance with any of its covenants hereunder (as to which the Trustee is 
entitled to rely exclusively on Officers' Certificates).

          (e)  So long as is required for an offer or sale of the Securities 
to qualify for an exemption under Rule 144A under the Securities Act, the 
Company shall, upon request, provide the information required by clause 
(d)(4) thereunder to each Holder and to each beneficial owner and prospective 
purchaser of Securities identified by any holder of Restricted Securities, 
unless such information is furnished to the Commission pursuant to Section 13 
or 15(d) of the Exchange Act.

          SECTION 7.05.  TAX REPORTING.  The Company shall provide to the 
Trustee on a timely basis such information as the Trustee requires to enable 
the Trustee to prepare and file any form required to be submitted by the 
Company with the Internal Revenue Service and the Holders relating to 
original issue discount, including, without limitation, Form 1099-OID or any 
successor form.

                                     ARTICLE VIII

                CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

          SECTION 8.01.  COMPANY MAY CONSOLIDATE, ETC., ONLY ON CERTAIN 
TERMS.  The Company shall not consolidate with or merge 

                                       60
<PAGE>

with or into any other Person or, directly or indirectly, convey, transfer or 
lease all or substantially all of its properties and assets on a consolidated 
basis to any Person, unless:

          (1)  in case the Company shall consolidate with or merge with or into
     another Person or convey, transfer or lease all or substantially all of its
     properties and assets on a consolidated basis to any Person, the Person
     formed by such consolidation or into which the Company is merged or the
     Person which acquires by conveyance, transfer or lease all or substantially
     all of the properties and assets of the Company on a consolidated basis
     shall be a corporation, partnership or trust, shall be organized and
     validly existing under the laws of the United States of America, any State
     thereof or the District of Columbia and shall expressly assume, by an
     indenture supplemental hereto, executed and delivered to the Trustee, in
     form reasonably satisfactory to the Trustee, the due and punctual payment
     of the principal of and interest (including any Additional Payments) on all
     the Securities and the performance or observance of every covenant of this
     Indenture on the part of the Company to be performed or observed;

          (2)  immediately after giving effect to such transaction and treating
     any indebtedness which becomes an obligation of the Company or a Subsidiary
     as a result of such transaction as having been incurred by the Company or
     such Subsidiary at the time of such transaction, no Event of Default, and
     no event which, after notice or lapse of time or both, would become an
     Event of Default, shall have happened and be continuing;

          (3)  such consolidation or merger or conveyance, transfer or lease of
     assets of the Company is permitted under, and does not give rise to any
     breach or violation of, the Declaration or the Guarantee; and

          (4)  the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that such consolidation, merger,
     conveyance, transfer or lease and, if a supplemental indenture is required
     in con-

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<PAGE>

     nection with such transaction, such supplemental indenture, comply
     with this Article and that all conditions precedent herein provided for
     relating to such transaction have been complied with.

          SECTION 8.02.  SUCCESSOR SUBSTITUTED.  Upon any consolidation of 
the Company with, or merger of the Company into, any other Person or any 
conveyance, transfer or lease of all or substantially all the properties and 
assets of the Company on a consolidated basis in accordance with Section 
8.01, the successor Person formed by such consolidation or into which the 
Company is merged or to which such conveyance, transfer or lease is made 
shall succeed to, and be substituted for, and may exercise every right and 
power of, the Company under this Indenture with the same effect as if such 
successor Person had been named as the Company herein, and thereafter, except 
in the case of a lease, the predecessor Person shall be relieved of all 
obligations and covenants under this Indenture and the Securities.

                                      ARTICLE IX

                               SUPPLEMENTAL INDENTURES

          SECTION 9.01.  SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF HOLDERS.  
Without the consent of any Holders, the Company, when authorized by a Board 
Resolution, and the Trustee, at any time and from time to time, may enter 
into one or more indentures supplemental hereto, in form satisfactory to the 
Trustee for any of the following purposes:

          (1)  to evidence the succession or another Person to the Company and
     the assumption by any such successor of the covenants of the Company herein
     and in the Securities; or

          (2)  to add to the covenants of the Company for the benefit of the
     Holders, or to surrender any right or power herein conferred upon the
     Company; or

          (3)  to cure any ambiguity, to correct or supplement any provision
     herein which may be inconsistent with any 

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<PAGE>

     other provision herein, or to make any other provisions with respect 
     to matters or questions arising under this Indenture which shall not 
     be inconsistent with the provisions of this Indenture; PROVIDED, that 
     such action pursuant to this clause (3) shall not adversely affect the 
     interest of the Holders of the Securities or, so long as any of the 
     Capital Securities shall remain outstanding, the holders of the 
     Capital Securities; or

          (4)  to comply with the requirements of the Commission in order to
     effect or maintain the qualification of this Indenture under the Trust
     Indenture Act; or

          (5)  to make any other change that does not adversely affect the
     rights of any Holder or any holder of Capital Securities (so long as any
     are outstanding)

          SECTION 9.02.  SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS.  
With the consent of the Holders of not less than a majority in principal 
amount of the outstanding Securities, by Act of said Holders delivered to the 
Company and the Trustee, the Company, when authorized by a Board Resolution, 
and the Trustee may enter into an indenture or indentures supplemental hereto 
for the purpose of adding any provisions to or changing in any manner or 
eliminating any of the provisions of this Indenture or of modifying in any 
manner the rights of the Holders under this Indenture; PROVIDED, HOWEVER, 
that no such supplemental indenture shall, without the consent of the Holder 
of each Outstanding Security affected thereby,

          (1)  extend the Stated Maturity Date of the principal of, or any
     installment of interest (including any Additional Payments) or premium, if
     any, on, any Security, or reduce the principal amount thereof, or reduce
     the rate or extend the time for payment of interest thereon, or reduce any
     premium payable upon the redemption thereof, or change the place of payment
     where, or the coin or currency in which, any Security or interest or
     premium, if any, thereon is payable, or impair the right to institute suit
     for the enforcement of any such payment on or after the Stated Maturity
     Date thereof (or, in the case of redemption, on or 

                                       63
<PAGE>

     after the Redemption Date), or modify the provisions of this Indenture 
     with respect to the subordination of the Securities in a manner 
     adverse to the Holders,

          (2)  reduce the percentage in principal amount of the Outstanding
     Securities, the consent of whose Holders is required for any such
     supplemental indenture, or the consent of whose Holders is required for any
     waiver of compliance with certain provisions of this Indenture or certain
     defaults hereunder and their consequences provided for in this Indenture,
     or

          (3)  modify any of the provisions of this Section or Section 5.13,
     except to increase any such percentage or to provide that certain other
     provisions of this Indenture cannot be modified or waived without the
     consent of the Holder of each Outstanding Security affected thereby.

          Notwithstanding anything to the contrary in this Indenture or the 
Declaration, if the Property Trustee is the sole holder of the Securities, so 
long as any of the Capital Securities remains outstanding, no amendment shall 
be made that adversely affects the holders of such Capital Securities, and no 
termination of this Indenture shall occur, and no waiver of any Event of 
Default or compliance with any covenant under this Indenture shall be 
effective, without the prior consent of the holders of the percentage of the 
aggregate liquidation amount of such Capital Securities then outstanding 
which is at least equal to the percentage of aggregate principal amount of 
the Outstanding Securities as shall be required under this Indenture to 
effect any such amendment, termination or waiver.

          It shall not be necessary for any Act of Holders under this Section 
to approve the particular form of any proposed supplemental indenture, but it 
shall be sufficient if such Act shall approve the substance thereof.

          The Company may, but shall not be obligated to, fix a record date 
for the purpose of determining the Persons entitled to consent to any 
indenture supplemental hereto. If a record date is fixed, the Holders on such 
record date, or their duly des-

                                       64
<PAGE>

ignated proxies, and only such Persons, shall be entitled to consent to such 
supplemental indenture, whether or not such Holders remain Holders after such 
record date; PROVIDED, that unless such consent shall have become effective 
by virtue of the requisite percentage having been obtained prior to the date 
which is 90 days after such record date, any such consent previously given 
shall automatically and without further action by any Holder be canceled and 
of no further effect.

          SECTION 9.03.  EXECUTION OF SUPPLEMENTAL INDENTURES.  In executing, 
or accepting the additional trusts created by, any supplemental indenture 
permitted by this Article or the modifications thereby of the trusts created 
by this Indenture, the Trustee shall be entitled to receive, and (subject to 
Section 6.01) shall be fully protected in relying upon, an Opinion of Counsel 
stating that the execution of such supplemental indenture is authorized or 
permitted by this Indenture.  The Trustee may, but shall not be obligated to, 
enter into any such supplemental indenture which affects the Trustee's own 
rights, duties or immunities under this Indenture or otherwise.

          SECTION 9.04.  EFFECT OF SUPPLEMENTAL INDENTURES.  Upon the 
execution of any supplemental indenture under this Article, this Indenture 
shall be modified in accordance therewith, and such supplemental indenture 
shall form a part of this Indenture for all purposes; and every Holder of 
Securities theretofore or thereafter authenticated and delivered hereunder 
shall be bound thereby.  No such supplemental indenture shall directly or 
indirectly modify the provisions of Article XII in any manner which might 
terminate or impair the rights of the Senior Indebtedness pursuant to such 
subordination provisions.

          SECTION 9.05.  REFERENCE IN SECURITIES TO SUPPLEMENTAL INDENTURES.  
Securities authenticated and delivered after the execution of any 
supplemental indenture pursuant to this Article may, and shall if required by 
the Trustee, bear a notation in form approved by the Trustee as to any matter 
provided for in such supplemental indenture. If the Company shall so 
determine, new Securities so modified as to conform, in the opinion of the 
Trustee and the Company, to any such supplemental indenture may 

                                       65
<PAGE>

be prepared and executed by the Company and authenticated and delivered by 
the Trustee in exchange for Outstanding Securities.

                                      ARTICLE X

                    COVENANTS; REPRESENTATIONS AND WARRANTIES

          SECTION 10.01.  PAYMENT OF PRINCIPAL AND INTEREST.  The Company 
will duly and punctually pay the principal of and interest on the Securities 
in accordance with the terms of the Securities and this Indenture.

          SECTION 10.02.  MAINTENANCE OF OFFICE OR AGENCY.  The Company will 
maintain in the United States an office or agency where Securities may be 
presented or surrendered for payment, where Securities may be surrendered for 
registration of transfer or exchange and where notices and demands to or upon 
the Company in respect of the Securities and this Indenture may be served.  
The Company will give prompt written notice to the Trustee of the location, 
and any change in the location, of such office or agency.  If at any time the 
Company shall fail to maintain any such required office or agency or shall 
fail to furnish the Trustee with the address thereof, such presentations, 
surrenders, notices and demands may be made or served at the Corporate Trust 
Office of the Trustee, and the Company hereby appoints the Trustee as its 
agent to receive all such presentations, surrenders, notices and demands.

          The Company may also from time to time designate one or more other 
offices or agencies (in the United States) where the Securities may be 
presented or surrendered for any or all such purposes and may from time to 
time rescind such designations; PROVIDED, HOWEVER, that no such designation 
or rescission shall in any manner relieve the Company of its obligation to 
maintain an office or agency in the United States for such purposes.  The 
Company will give prompt written notice to the Trustee of any such 
designation or rescission and of any change in the location of any such other 
office or agency.

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<PAGE>

          SECTION 10.03.  MONEY FOR SECURITY PAYMENTS TO BE HELD IN TRUST.  
If the Company shall at any time act as its own Paying Agent, it will, on or 
before each due date of the principal of or interest on any of the 
Securities, segregate and hold in trust for the benefit of the Persons 
entitled thereto a sum sufficient to pay the principal or interest so 
becoming due until such sums shall be paid to such Persons or otherwise 
disposed of as herein provided and will promptly notify the Trustee of its 
action or failure so to act.

          Whenever the Company shall have one or more Paying Agents, it will, 
prior to each due date of the principal or interest on any Securities, 
deposit with a Paying Agent a sum sufficient to pay the principal, premium, 
if any, or interest so becoming due, such sum to be held as provided by the 
Trust Indenture Act, and (unless such Paying Agent is the Trustee) the 
Company will promptly notify the Trustee of its action or failure so to act.

          The Company will cause each Paying Agent other than the Trustee to 
execute and deliver to the Trustee an instrument in which such Paying Agent 
shall agree with the Trustee, subject to the provisions of this Section, that 
such Paying Agent will (i) comply with the provisions of the Trust Indenture 
Act applicable to it as a Paying Agent and (ii) during the continuance of any 
default by the Company (or any other obligor upon the Securities) in the 
making of any payment in respect of the Securities, upon the written request 
of the Trustee, forthwith pay to the Trustee all sums held in trust by such 
Paying Agent as such.

          The Company may at any time, for the purpose of obtaining the 
satisfaction and discharge of this Indenture or for any other purpose, pay, 
or by Company Order direct any Paying Agent to pay, to the Trustee all sums 
held in trust by the Company or such Paying Agent, such sums to be held by 
the Trustee upon the same trusts as those upon which such sums were held by 
the Company or such Paying Agent; and, upon such payment by any Paying Agent 
to the Trustee, such Paying Agent shall be released from all further 
liability with respect to such money.

                                       67
<PAGE>

          Any money deposited with the Trustee or any Paying Agent, or then 
held by the Company, in trust for the payment of the principal of or interest 
or premium, if any, on any Security and remaining unclaimed for two years 
after such principal or interest or premium, if any, has become due and 
payable shall be paid to the Company on Company Request, or (if then held by 
the Company) shall be discharged from such trust; and the Holder of any such 
Security shall thereafter, as an unsecured general creditor, look only to the 
Company for payment thereof, and all liability of the Trustee or such Paying 
Agent with respect to such trust money, and all liability of the Company as 
trustee thereof, shall thereupon cease.

          SECTION 10.04.  STATEMENT BY OFFICERS AS TO DEFAULT.  The Company 
will deliver to the Trustee and the Property Trustee, within 120 days after 
the end of each fiscal year of the Company ending after the date hereof, an 
Officers' Certificate, stating whether or not to the best knowledge of the 
signers thereof the Company is in default in the performance and observance 
of any of the material terms, provisions and conditions of this Indenture 
(without regard to any period of grace or requirement of notice provided 
hereunder) and, if the Company shall be in default, specifying all such 
defaults and the nature and status thereof of which they may have knowledge.

          SECTION 10.05.  LIMITATION ON DIVIDENDS; TRANSACTIONS WITH 
AFFILIATES; COVENANTS AS TO THE TRUST.  (a)  If (i) there shall have occurred 
any event that with the giving of notice or the lapse of time or both, would 
constitute an Event of Default hereunder, (ii) the Company shall be in 
default with respect to its payment of any obligations under the Guarantee or 
(iii) the Company shall have given notice of its selection of a Deferral 
Period as provided herein and such period, or any extension thereof, shall be 
continuing, the Company (A) shall not declare or pay dividends on, make 
distributions with respect to, or redeem, purchase or acquire, or make a 
liquidation payment with respect to, any of its capital stock, (B) shall not 
make any payment of interest, principal or premium, if any, on or repay, 
repurchase or redeem any debt securities issued by the Company that rank PARI 
PASSU with or junior to the Securities, and (C) shall not make any guarantee 
payments with respect to the 

                                       68
<PAGE>

foregoing (other than (1) dividends or distribution in shares of, or options, 
warrants or rights to subscribe for or purchase shares of, common stock of 
the Company; (2) any declaration of a dividend in connection with the 
implementation of a stockholders' rights plan, or the issuance of stock under 
any such plan in the future, or the redemption or repurchase of any such 
rights pursuant thereto; (3) payments under the Guarantee; (4) as a result of 
a reclassification of the Company's capital stock or the exchange or the 
conversion of one class or series of the Company's capital stock for another 
class or series of the Company's capital stock; (5) the purchase of 
fractional interests in shares of the Company's capital stock pursuant to the 
conversion or exchange provisions of such capital stock or the security being 
converted or exchanged; and (6) purchases of common stock in connection with 
the satisfaction by the Company of its obligations (including purchases 
related to the issuance of common stock or rights) under any of the Company's 
benefit plans for its and its subsidiaries' directors, officers or employees 
or any of the Company's dividend reinvestment plans).

          (b)  The Company also covenants and agrees (i) that it shall 
directly maintain 100% ownership of the Common Securities of the Trust; 
PROVIDED, HOWEVER, that any permitted successor of the Company hereunder may 
succeed to the Company's ownership of such Common Securities and (ii) that it 
shall use its reasonable efforts, consistent with the terms and provisions of 
the Declaration, to cause the Trust (x) to remain a statutory business trust, 
except in connection with the distribution of the Securities to the holders 
of the Trust Securities in liquidation of the Trust, the redemption of all of 
the Trust Securities of the Trust, or certain mergers, consolidations or 
amalgamations, each as permitted by the Declaration, and (y) to otherwise 
continue to be classified as a grantor trust for United States federal income 
tax purposes.

          SECTION 10.06.  PAYMENT OF EXPENSES OF THE TRUST.  In connection 
with the offering, sale and issuance of the Securities to the Property 
Trustee in connection with the sale of the Trust Securities by the Trust, the 
Company, in its capacity as borrower with respect to the Securities, shall:

                                       69
<PAGE>

          (a)  pay for all costs, fees and expenses relating to the offering,
     sale and issuance of the Securities, including commissions or other
     compensation to the Purchasers payable pursuant to the Purchase Agreement
     and compensation of the Trustee under this Indenture in accordance with the
     provisions of Section 6.07 of this Indenture;

          (b)  be responsible for and pay for all debts and obligations (other
     than with respect to the Trust Securities) of the Trust, pay for all costs
     and expenses of the Trust (including, but not limited to, costs and
     expenses relating to the organization of the Trust, the offering, sale and
     issuance of the Trust Securities (including commissions or other
     compensation to, and indemnification of, the Purchasers in connection
     therewith), the fees and expenses of the Property Trustee and the Delaware
     Trustee, the costs and expenses relating to the operation of the Trust,
     including without limitation, costs and expenses of accountants, attorneys,
     statistical or bookkeeping services, expenses for printing and engraving
     and computing or accounting equipment, paying agent(s), registrar(s),
     transfer agent(s), duplicating, travel and telephone and other
     telecommunications expenses and costs and expenses incurred in connection
     with the acquisition, financing, and disposition of Trust assets);

          (c)  be primarily liable for any indemnification obligations arising
     with respect to the Declaration; and

          (d)  pay any and all taxes (other than United States withholding taxes
     attributable to the Trust or its assets) and all liabilities, costs and
     expenses with respect to such taxes of the Trust.

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<PAGE>

                                     ARTICLE XI

                             REDEMPTION OF SECURITIES

          SECTION 11.01.  RIGHT OF REDEMPTION.  The Securities may be 
redeemed at the election of the Company, (a) as a whole or in part, at any 
time or from time to time, at the Redemption Price set forth in Section 11.09 
below and (b) in certain circumstances upon the occurrence of a Special Event 
at the Special Event Redemption Price set forth in Section 11.10 below.

          SECTION 11.02.  APPLICABILITY OF ARTICLE.  Redemption of Securities 
at the election of the Company, as permitted by Section 11.01, shall be made 
in accordance with this Article.

          SECTION 11.03.  ELECTION TO REDEEM; NOTICE TO TRUSTEE.  The 
election of the Company to redeem Securities pursuant to Section 11.01 shall 
be evidenced by a Board Resolution.  In case of any redemption at the 
election of the Company, the Company shall, at least 60 days and no more than 
90 days prior to the Redemption Date fixed by the Company, notify the Trustee 
in writing of such Redemption Date and of the principal amount of Securities 
to be redeemed and provide a copy of the notice of redemption given to 
Holders of Securities to be redeemed pursuant to Section 11.05.

          SECTION 11.04.  SELECTION BY TRUSTEE OF SECURITIES TO BE REDEEMED.  
If less than all the Securities are to be redeemed (unless such redemption 
affects only a single Security), the particular Securities to be redeemed 
shall be selected not more than 60 days prior to the Redemption Date by the 
Trustee, from the Outstanding Securities not previously called for 
redemption, by such method (including, without limitation, pro rata or by 
lot) as the Trustee shall deem fair and appropriate.

          The Trustee shall promptly notify the Company in writing of the 
Securities selected for redemption as aforesaid and, in case of any 
Securities selected for partial redemption as aforesaid, the principal amount 
thereof to be redeemed.

                                       71
<PAGE>

          The provisions of the two preceding paragraphs shall not apply with 
respect to any redemption affecting only a single Security, whether such 
Security is to be redeemed in whole or in part.  In the case of any such 
redemption in part, the unredeemed portion of the principal amount of the 
Security shall be in an authorized denomination (which shall not be less than 
the minimum authorized denomination) for such Security.

          For all purposes of this Indenture, unless the context otherwise 
requires, all provisions relating to the redemption of Securities shall 
relate, in the case of any Securities redeemed or to be redeemed only in 
part, to the portion of the principal amount of such Securities which has 
been or is to be redeemed.

          SECTION 11.05.  NOTICE OF REDEMPTION.  Notice of redemption shall 
be given by first-class mail, postage prepaid mailed not less than 30 nor 
more than 60 days prior to the Redemption Date, to each Holder of Securities 
to be redeemed, at such Holder's address appearing in the Security Register. 

          All notices of redemption shall identify the Securities to be 
redeemed (including, if relevant, CUSIP or ISIN number) and shall state:

          (1)  the Redemption Date,

          (2)  the Redemption Price (or Special Event Redemption Price in the 
     case of a redemption pursuant to a Special Event),

          (3)  that on the Redemption Date the Redemption Price (or Special
     Event Redemption Price in the case of a redemption pursuant to a Special
     Event) will become due and payable upon each such Security to be redeemed
     and that interest thereon will cease to accrue on and after said date, and

          (4)  the place or places where such Securities are to be surrendered
     for payment of the Redemption Price (or Special Event Redemption Price in
     the case of a redemption pursuant to a Special Event).

                                       72
<PAGE>

          Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company.

          SECTION 11.06.  DEPOSIT OF REDEMPTION PRICE.  Prior to any 
Redemption Date, the Company shall deposit with the Trustee or with a Paying 
Agent (or, if the Company is acting as its own Paying Agent, segregate and 
hold in trust as provided in Section 10.03) an amount of money sufficient to 
pay the Redemption Price (or Special Event Redemption Price in the case of a 
redemption pursuant to a Special Event) of, and (except if the Redemption 
Date shall be an Interest Payment Date) accrued interest on, all the 
Securities which are to be redeemed on that date.

          SECTION 11.07.  SECURITIES PAYABLE ON REDEMPTION DATE.  Notice of 
redemption having been given as aforesaid, the Securities so to be redeemed 
shall, on the Redemption Date, become due and payable at the Redemption Price 
(or Special Event Redemption Price in the case of a redemption pursuant to a 
Special Event) therein specified, and from and after such date (unless the 
Company shall default in the payment of the Redemption Price (or Special 
Event Redemption Price in the case of a redemption pursuant to a Special 
Event) and accrued interest) such Securities shall cease to bear interest.  
Upon surrender of any such Security for redemption in accordance with said 
notice, such Security shall be paid by the Company at the Redemption Price 
(or Special Event Redemption Price in the case of a redemption pursuant to a 
Special Event), together with accrued interest (including Additional 
Payments, if any) to the Redemption Date; PROVIDED, HOWEVER, that 
installments of interest whose Stated Maturity Date is on or prior to the 
Redemption Date shall be payable to the Holders of such Securities, or one or 
more Predecessor Securities, registered as such at the close of business on 
the relevant Record Dates according to the terms and the provisions of 
Section 3.07.

          If any Security called for redemption shall not be so paid upon 
surrender thereof for redemption, the principal shall, 

                                       73
<PAGE>

until paid, bear interest from the Redemption Date at the rate borne by the 
Security.

          SECTION 11.08.  SECURITIES REDEEMED IN PART.  In the event of any 
redemption in part, the Company shall not be required to (i) issue, register 
the transfer of or exchange any Security during a period beginning at the 
opening of business 15 days before any selection for redemption of Securities 
and ending at the close of business on the earliest date in which the 
relevant notice of redemption is deemed to have been given to all Holders of 
Securities to be so redeemed and (ii) register the transfer of or exchange 
any Securities so selected for redemption, in whole or in part, except for 
the unredeemed portion of any Securities being redeemed in part.

          Any Security which is to be redeemed only in part shall be 
surrendered at a place of payment therefor (with, if the Company or the 
Trustee so requires, due endorsement by, or a written instrument of transfer 
in form satisfactory to the Company and the Trustee duly executed by, the 
Holder thereof or his attorney duly authorized in writing), and the Company 
shall execute, and the Trustee shall authenticate and make available for 
delivery to the Holder of such Security without service charge, a new 
Security or Securities, of any authorized denomination as requested by such 
Holder, in aggregate principal amount equal to and in exchange for the 
unredeemed portion of the principal of the Security so surrendered.

          SECTION 11.09.  OPTIONAL REDEMPTION.  (a)  Subject to the 
provisions of this Article XI, the Company shall have the right to redeem the 
Securities, in whole or in part, at any time or from time to time, after the 
issuance of the Capital Securities, at a redemption price equal to 100% of 
the principal amount of Securities to be redeemed plus the Make-Whole 
Premium, if any, plus any accrued and unpaid interest thereon (including 
Compounded Interest, if any) and Additional Interest, if any, to the date of 
such redemption (collectively, the "Redemption Price").  The Make-Whole 
Premium means the excess, if any, of (x) the sum, as determined by a 
Quotation Agent, of the present values of (i) the scheduled payment at the 
Stated Maturity Date of the principal amount to be redeemed plus (ii) 
scheduled 

                                       74
<PAGE>

payments of interest on such principal amount (including any Compounded 
Interest) from the redemption date to the Stated Maturity Date (the 
"Remaining Life"), in each case discounted to the redemption date on a 
semi-annual basis (assuming a 360-day year consisting of twelve 30-day 
months) at the Adjusted Treasury Rate, over (y) 100% of the principal amount 
of Securities to be redeemed.  Any redemption pursuant to this paragraph will 
be made upon not less than 30 days nor more than 60 days notice to the Holder 
of the Securities, at the Redemption Price.  The Redemption Price shall be 
paid prior to 1:00 p.m., New York time, on the date of such redemption or at 
such earlier time as the Company determines and specifies in the notice of 
redemption; PROVIDED, that, the Company shall deposit with the Trustee an 
amount sufficient to pay the Redemption Price by 11:00 a.m., New York time, 
on the date such Redemption Price is to be paid.

          (b)  If a partial redemption of the Securities would result in the 
delisting of the Capital Securities issued by the Trust from any national 
securities exchange or other organization on which the Capital Securities are 
listed, the Company shall not be permitted to effect such partial redemption 
and may only redeem the Securities in whole.

          (c)  The Company may not redeem fewer than all of the Outstanding 
Securities unless all accrued and unpaid interest (including Additional 
Payments) on the Securities has been paid as of the Interest Payment Date 
next preceding the Redemption Date.

          SECTION 11.10.  SPECIAL EVENT REDEMPTION.  If a Special Event has 
occurred and is continuing, then, notwithstanding Section 11.09(a), the 
Company shall have the right upon not less than 30 days nor more than 60 days 
notice to the Holders of the Securities to redeem the Securities in whole 
(but not in part) at anytime within 90 days after such Special Event (the "90 
Day Period"), at a redemption price equal to the Special Event Redemption 
Price which shall be computed in the same manner as the Redemption Price, 
except that the Make-Whole Premium shall be calculated using the Special 
Event Adjusted Treasury Rate rather than the Adjusted Treasury Rate (the 
"Special Event Make-Whole Premium").  The Special Event Redemption Price 
shall be paid 

                                       75
<PAGE>

prior to 1:00 p.m., New York time, on the date of such redemption or such 
earlier time as the Company determines; PROVIDED, that, the Company shall 
deposit with the Trustee an amount sufficient to pay the Special Event 
Redemption Price by 11:00 a.m., New York time, on the date such Special Event 
Redemption Price is to be paid.

                                     ARTICLE XII

                             SUBORDINATION OF SECURITIES

          SECTION 12.01.  AGREEMENT TO SUBORDINATE.  The Company covenants 
and agrees, and each Holder of Securities by such Holder's acceptance thereof 
likewise covenants and agrees, that all Securities shall be issued subject to 
the provisions of this Article XII; and each Holder of a security, whether 
upon original issue or upon transfer or assignment thereof, accepts and 
agrees to be bound by such provisions.  The payment by the Company of the 
principal of, premium, if any, and interest (including Additional Payments) 
on all Securities issued hereunder shall, to the extent and in the manner 
hereinafter set forth, be subordinated and junior in right of payment to the 
prior payment in full of all Senior Indebtedness, whether outstanding at the 
date of this Indenture or thereafter incurred; PROVIDED, HOWEVER, that no 
provision of this Article XII shall prevent the occurrence of any default or 
Event of Default hereunder.

          SECTION 12.02.  DEFAULT ON SENIOR INDEBTEDNESS.  In the event and 
during the continuation of any default by the Company in the payment of 
principal, premium, interest or any other payment due on any Senior 
Indebtedness continuing beyond the period of grace, if any, specified in the 
instrument evidencing such Senior Indebtedness, unless and until such default 
shall have been cured or waived or shall have ceased to exist, and in the 
event that the maturity of any Senior Indebtedness has been accelerated 
because of a default, then no payment shall be made by the Company with 
respect to the principal of (including redemption payments), premium, if any, 
or interest on the Securities.

                                       76
<PAGE>

          In the event that, notwithstanding the foregoing, any payment shall 
be received by the Trustee when such payment prohibited by the preceding 
paragraph of this Section 12.02, such payment shall be held in trust for the 
benefit of, and shall be paid over or delivered to, the holders of Senior 
Indebtedness or their respective representatives or to the trustee or 
trustees under any indenture pursuant to which any of such Senior 
Indebtedness may have been issued, as their respective interests may appear 
but only to the extent that the holders of the Senior Indebtedness (or their 
representative or representatives or a trustee) notify the Trustee in writing 
within 90 days of such payment of the amounts then due and owing on the 
Senior Indebtedness and only the amount specified in such notice to the 
Trustee shall be paid to the holders of Senior Indebtedness.

          SECTION 12.03.  LIQUIDATION; DISSOLUTION; BANKRUPTCY.  Upon any 
payment by the Company or distribution of assets of the Company of any kind 
or character, whether in cash, property or securities, to creditors upon any 
dissolution or winding up or liquidation or reorganization of the Company, 
whether voluntary or involuntary, or in bankruptcy, insolvency, receivership 
or other proceedings, all amounts (including principal, premium, if any, and 
interest) due or to become due upon all Senior Indebtedness shall first be 
paid in full, or payment thereof provided for in money in accordance with 
their terms, before any payment is made on account of the principal (and 
premium, if any) or interest on the Securities; and upon any such dissolution 
or winding up or liquidation or reorganization, any payment by the Company, 
or distribution of assets of the Company of any kind or character, whether in 
cash, property or securities, to which the Holders of the Securities or the 
Trustee would be entitled, except for the provisions of this Article XII, 
shall be paid by the Company or by any receiver, trustee in bankruptcy, 
liquidating trustee, agent or other Person making such payment or 
distribution, or by the Holders of the Securities or by the Trustee under 
this Indenture if received by them or it, directly to the holders of Senior 
Indebtedness (pro rata to such holders on the basis of the respective amounts 
of Senior Indebtedness held by such holders, as calculated by the Company) or 
their representative or representatives, or to the trustee or trustees under 
any indenture pursuant to which any instruments evidencing 

                                       77
<PAGE>

such Senior Indebtedness may have been issued, as their respective interests 
may appear, to the extent necessary to pay such Senior Indebtedness in full, 
in money or money's worth, after giving effect to any concurrent payment or 
distribution to or for the holders of such Senior Indebtedness, before any 
payment or distribution is made to the Holders of Securities or to the 
Trustee.

          In the event that, notwithstanding the foregoing, any payment or 
distribution of assets of the Company of any kind or character, whether in 
cash, property or securities, prohibited by the foregoing, shall be received 
by the Trustee or the Holders of the Securities before all Senior 
Indebtedness is paid in full, or provision is made for such payment in money 
in accordance with its terms, such payment or distribution shall be held in 
trust for the benefit of and shall be paid over or delivered to the holders 
of Senior Indebtedness or their representative or representatives, or to the 
trustee or trustees under any indenture pursuant to which any instruments 
evidencing such Senior Indebtedness may have been issued, and their 
respective interests may appear, as calculated by the Company, for 
application to the payment of all Senior Indebtedness remaining unpaid to the 
extent necessary to pay such Senior Indebtedness in full in money in 
accordance with its terms, after giving effect to any concurrent payment or 
distribution to or for the holders of such Senior Indebtedness.

          For purposes of this Article XII, the words, "cash, property or 
securities" shall not be deemed to include shares of stock of the Company as 
reorganized or readjusted, or securities of the Company or any other 
corporation provided for by a plan of reorganization or readjustment, the 
payment of which is subordinated at least to the extent provided in this 
Article XII with respect to the Securities to the payment of all Senior 
Indebtedness which may at the time be outstanding; PROVIDED, that (i) such 
Senior Indebtedness is assumed by the new corporation, if any, resulting from 
any such reorganization or readjustment, and (ii) the rights of the holders 
of such Senior Indebtedness are not, without the consent of such holders, 
altered by such reorganization or readjustment.  The consolidation of the 
Company with, or the merger of the Company with or into, another Person 

                                       78
<PAGE>

or the liquidation or dissolution of the Company following the conveyance, 
transfer or lease of all or substantially all its properties and assets on a 
consolidated basis to another Person upon the terms and conditions provided 
for in Article VIII hereof shall not be deemed a dissolution, winding up, 
liquidation or reorganization for the purposes of this Section 12.03 if such 
other Person shall, as a part of such consolidation, merger, conveyance, 
transfer or lease, comply with the conditions stated in Article VIII hereof.  
Nothing in Section 12.02 or in this Section 12.03 shall apply to claims of, 
or payments to, the Trustee under or pursuant to Section 6.07 hereof.

          SECTION 12.04.  SUBROGATION.  Subject to the payment in full of all 
Senior Indebtedness, the rights of the Holders of the Securities shall be 
subrogated to the rights of the holders of such Senior Indebtedness to 
receive payments or distributions of cash, property or securities of the 
Company, as the case may be, applicable to such Senior Indebtedness until the 
principal of (and premium, if any) and interest on the Securities shall be 
paid in full; and, for the purposes of such subrogation, no payments or 
distributions to the holders of such Senior Indebtedness of any cash, 
property or securities to which the Holders of the Securities or the Trustee 
would be entitled except for the provisions of this Article XII, to or for 
the benefit of the holders of such Senior Indebtedness by Holders of the 
Securities or the Trustee, shall, as between the Company, its creditors other 
than holders of Senior Indebtedness, and the Holders of the Securities, be 
deemed to be a payment by the Company to or on account of such Senior 
Indebtedness.  It is understood that the provisions of this Article XII are 
and are intended solely for the purposes of defining the relative rights of 
the Holders of the Securities, on the one hand, and the holders of such 
Senior Indebtedness on the other hand.

          Nothing contained in this Article XII or elsewhere in this 
Indenture or in the Securities is intended to or shall impair, as between the 
Company, its creditors other than the holders of Senior Indebtedness, and the 
Holders of the Securities, the obligation of the Company, which is absolute 
and unconditional, to pay to the Holders of the Securities the principal of 
(and premium, if any) and interest on the Securities 

                                       79
<PAGE>

as and when the same shall become due and payable in accordance with their 
terms, or is intended to or shall affect the relative rights of the Holders 
of the Securities and creditors of the Company, as the case may be, other 
than the holders of Senior Indebtedness, nor shall anything herein or therein 
prevent the Trustee or the Holder of any Security from exercising all 
remedies otherwise permitted by applicable law upon default under this 
Indenture, subject to the rights, if any, under this Article XII of the 
holders of such Senior Indebtedness in respect of cash, property or 
securities of the Company, as the case may be, received upon the exercise of 
any such remedy.

          Upon any payment or distribution of assets of the Company referred 
to in this Article XII, the Trustee, subject to the provisions of Sections 
6.01 and 6.03, and the Holders of the Securities, shall be entitled to rely 
upon any order or decree made by any court of competent liquidation in which 
such dissolution, winding up, liquidation or reorganization proceedings are 
pending, or a certificate of the receiver, trustee in bankruptcy, liquidation 
trustee, agent or other Person making such payment or distribution, delivered 
to the Trustee or to the Holders of the Securities, for the purposes of 
ascertaining the Persons entitled to participate in such distribution, the 
holders of the Senior Indebtedness and other indebtedness of the Company, as 
the case may be, the amount thereof or payable thereon, the amount or amounts 
paid or distributed thereon and all other facts pertinent thereto or to this 
Article XII.

          SECTION 12.05.  TRUSTEE TO EFFECTUATE SUBORDINATION.  Each Holder 
of Securities by such Holder's acceptance thereof authorizes and directs the 
Trustee on such Holder's behalf to take such action as may be necessary or 
appropriate to effectuate the subordination provided in this Article XII and 
appoints the Trustee as such Holder's attorney-in-fact for any and all such 
purposes.

          SECTION 12.06.  NOTICE BY THE COMPANY.  The Company shall give 
prompt written notice to a Responsible Officer of the Trustee of any fact 
known to the Company which would prohibit the making of any payment of monies 
to or by the Trustee in respect of the Securities pursuant to the provisions 
of this Article XII. 

                                       80
<PAGE>

Notwithstanding the provisions of this Article XII or any other provision of 
this Indenture, the Trustee shall not be charged with knowledge of the 
existence of any facts which would prohibit the making of any payment of 
monies to or by the Trustee in respect of the Securities pursuant to the 
provisions of this Article XII, unless and until a Responsible Officer of the 
Trustee shall have received written notice thereof at the Corporate Trust 
Office of the Trustee from the Company or a holder or holders of Senior 
Indebtedness or from any trustee therefor; and, before the receipt of any 
such written notice, the Trustee, subject to the provisions of Section 6.03 
hereof, shall be entitled in all respects to assume that no such facts exist; 
PROVIDED, HOWEVER, that if the Trustee shall not have received the notice 
provided for in this Section 12.06 at least two Business Days prior to the 
date upon which by the terms hereof any money may become payable for any 
purpose (including, without limitation, the payment of the principal of (and 
premium, if any) or interest on any Security), then, anything herein 
contained to the contrary notwithstanding, the Trustee shall have full power 
and authority to receive such monies and to apply the same to the purposes 
for which they were received, and shall not be affected by any notice to the 
contrary which may be received by it within two Business Days prior to such 
date.

          The Trustee, subject to the provisions of Sections 6.01 and 6.03, 
shall be entitled to rely on the delivery to it of a written notice by a 
Person representing himself to be a holder of Senior Indebtedness (or a 
trustee on behalf of such holder) to establish that such notice has been 
given by a holder of such Senior Indebtedness or a trustee on behalf of any 
such holder or holders.  In the event that the Trustee determines in good 
faith that further evidence is required with respect to the right of any 
Person as a holder of Senior Indebtedness to participate in any payment or 
distribution pursuant to this Article XII, the Trustee may request such 
Person to furnish evidence to the reasonable satisfaction of the Trustee as 
to the amount of Senior Indebtedness held by such Person, the extent to which 
such Person is entitled to participate in such payment or distribution and 
any other facts pertinent to the right of such Person under this Article XII, 
and, if such evidence is not furnished, the Trustee 

                                       81
<PAGE>

may defer any payment to such Person pending judicial determination as to the 
right of such Person to receive such payment.

          SECTION 12.07.  RIGHTS OF THE TRUSTEE:  HOLDERS OF SENIOR 
INDEBTEDNESS.  The Trustee in its individual capacity shall be entitled to 
all the rights set forth in this Article XII in respect of any Senior 
Indebtedness at any time held by it, to the same extent as any other holder 
of Senior Indebtedness, and nothing in this Indenture shall deprive the 
Trustee of any of its rights as such holder.

          With respect to the holders of Senior Indebtedness of the Company, 
the Trustee undertakes to perform or to observe only such of its covenants 
and obligations as are set forth in this Article XII, and no implied 
covenants or obligations with respect to the holders of such Senior 
Indebtedness shall be read into this Indenture against the Trustee.  The 
Trustee shall not be deemed to owe any fiduciary duty to the holders of such 
Senior Indebtedness and, subject to the provisions of Section 6.03, the 
Trustee shall not be liable to any holder of such Senior Indebtedness if it 
shall pay over or deliver to Holders of Securities, the Company or any other 
Person money or assets to which any holder of such Senior Indebtedness shall 
be entitled by virtue of this Article XII or otherwise.

          SECTION 12.08.  SUBORDINATION MAY NOT BE IMPAIRED.  No right of any 
present or future holder of any Senior Indebtedness to enforce subordination 
as herein provided shall at any time in any way be prejudiced or impaired by 
any act or failure to act on the part of the Company or by any act or failure 
to act, in good faith, by any such Holders or by any noncompliance by the 
Company with the terms provisions and covenants of this Indenture, regardless 
of any knowledge thereof which any such holder may have or otherwise be 
charged with.

          Without in any way limiting the generality of the foregoing 
paragraph, the holders of Senior Indebtedness may, at any time and from time 
to time, without the consent of or notice to the Trustee or the Holders of 
the Securities, without incurring responsibility to the Holders of the 
Securities and without impairing or releasing the subordination provided in 
this 

                                       82
<PAGE>

Article XII or the obligations hereunder of the Holders of the Securities to 
the holders of Senior Indebtedness, do any one or more of the following:  (i) 
change the manner, place or terms of payment or extend the time of payment 
of, or renew or alter, such Senior Indebtedness, or otherwise amend or 
supplement in any manner such Senior Indebtedness or any instrument 
evidencing the same or any agreement under which such Senior Indebtedness is 
outstanding; (ii) sell, exchange, release or otherwise deal with any property 
pledged, mortgaged or otherwise securing such Senior Indebtedness; (iii) 
release any Person liable in any manner for the collection of such Senior 
Indebtedness; and (iv) exercise or refrain from exercising any rights against 
the Company and any other person.

                             ___________________________


          This instrument may be executed in any number of counterparts, each 
of which so executed shall be deemed to be an original, but all such 
counterparts shall together constitute but one and the same instrument.

                                       83
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Indenture 
to be duly executed, and their respective corporate seals to be hereunto 
affixed and attested, all as of the day and year first above written.

                              ZENITH NATIONAL INSURANCE CORP.


                              By: /s/ Stanley R. Zax
                                 -------------------------------
                                 Stanley R. Zax
                                 Chairman and President


Attest:

/s/ John J. Tickner
- ----------------------------
John J. Tickner, Secretary


                              NORWEST BANK MINNESOTA,
                                NATIONAL ASSOCIATION, as
                                Indenture Trustee


                              By: /s/ Jane Y. Schweiger
                                 ----------------------------
                                 Jane Y. Schweiger
                                 Corporate Trust Officer


Attest:

/s/ [illegible]
- ----------------------------


<PAGE>


                                    EXHIBIT A-1

                                  FORM OF SECURITY

                             [FORM OF FACE OF SECURITY]


          [IF THE DEBENTURE IS TO BE A GLOBAL DEBENTURE INSERT - This Debenture 
is a Global Debenture within the meaning of the Indenture hereinafter referred 
to and is registered in the name of Norwest Bank Minnesota, National Association
("Norwest") or a nominee of Norwest.  This Debenture is exchangeable for 
Debentures registered in the name of a person other than Norwest or its nominee 
only in the limited circumstances described in the Indenture and no transfer of 
this Debenture (other than a transfer of this Debenture as a whole by Norwest to
a nominee of Norwest or by a nominee of Norwest to Norwest or another nominee of
Norwest) may be registered except in limited circumstances.


          Unless this Debenture certificate is presented by an authorized
representative of Norwest to the Trust or its agent for registration of
transfer, exchange or payment, and any Debenture certificate issued is
registered in the name of Cede & Co. or such other name as requested by an
authorized representative of Norwest (and any payment hereon is made to Cede &
Co. or to such other entity as is requested by an authorized representative of
Norwest), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
TO ANY PERSON IS WRONGFUL since the registered owner hereof, Cede & Co., has an
interest herein]. 

          THIS DEBENTURE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS OR ANY
OTHER APPLICABLE SECURITIES LAW.  NEITHER THIS DEBENTURE NOR ANY INTEREST OR
PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED,
ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR
UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. 

<PAGE>

          THE HOLDER OF THIS DEBENTURE BY ITS ACCEPTANCE HEREOF AGREES TO OFFER,
SELL OR OTHERWISE TRANSFER THIS DEBENTURE ONLY (A) TO THE COMPANY, (B) PURSUANT
TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE
SECURITIES ACT, (C) SO LONG AS THIS DEBENTURE IS ELIGIBLE FOR RESALE PURSUANT TO
RULE 144A UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON IT REASONABLY
BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER"  (AS DEFINED IN RULE 144A) THAT
PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL
BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON
RULE 144A, (D) IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 903 or 904
UNDER THE SECURITIES ACT, (E) PURSUANT TO AN EXEMPTION FROM REGISTRATION
PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF APPLICABLE) OR (F) PURSUANT TO
ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE
SECURITIES ACT, SUBJECT TO THE RIGHT OF THE TRUST AND THE COMPANY PRIOR TO ANY
SUCH OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (E) OR (F) TO REQUIRE THE
DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER INFORMATION
SATISFACTORY TO EACH OF THEM AND (ii) IN EACH OF CASES (B) THROUGH (F) IN
ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED
STATES.  SUCH HOLDER FURTHER AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM
THIS DEBENTURE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS
LEGEND.

          THE HOLDER OF THIS DEBENTURE BY ITS ACCEPTANCE HEREOF ALSO AGREES,
REPRESENTS AND WARRANTS THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT PLAN
SUBJECT TO THE "PROHIBITED TRANSACTIONS" PROVISIONS OF SECTION 406 OF THE
EMPLOYMENT RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA") OR
SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED ("THE CODE")
AND IS NOT USING THE ASSETS OF ANY SUCH PLAN TO ACQUIRE THIS DEBENTURE OR
(ii) THE ACQUISITION AND HOLDING OF THIS DEBENTURE BY IT IS NOT PROHIBITED BY
EITHER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE, OR IS EXEMPT FROM ANY
SUCH PROHIBITION BY APPLICATION OF A STATUTORY, REGULATORY OR ADMINISTRATIVE
EXEMPTION.

          THIS DEBENTURE WILL BE ISSUED, AND MAY BE TRANSFERRED, ONLY IN BLOCKS
HAVING A PRINCIPAL AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL REDEMPTION) OF
NOT LESS THAN $100,000.  ANY TRANSFER, 

                                       2
<PAGE>

SALE OR OTHER DISPOSITION OF THE DEBENTURES IN A BLOCK HAVING A PRINCIPAL 
AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL REDEMPTION)OF LESS THAN $100,000 
SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT WHATSOEVER.  ANY SUCH 
TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH DEBENTURES FOR ANY 
PURPOSE, INCLUDING BUT NOT LIMITED TO THE RECEIPT OF DISTRIBUTIONS ON SUCH 
DEBENTURES, AND SUCH TRANSFEREE SHALL BE DEEMED TO HAVE NO INTEREST 
WHATSOEVER IN SUCH DEBENTURES.

                                 8.55% Subordinated
                       Deferrable Interest Debenture due 2028

No.                                                             $
                                                     CUSIP No.

          ZENITH NATIONAL INSURANCE CORP., a corporation duly organized and
existing under the laws of the State of Delaware (herein called the "Company",
which term includes any successor corporation under the Indenture hereinafter
referred to), pursuant to an indenture, dated as of July 30, 1998 (the
"Indenture") and for value received, hereby promises to pay to               ,
or registered assigns, the principal sum [indicated on Schedule A-1 hereof(1)] 
[of ______________________ Dollars ($_________)(2)]  on _______, ____.

Interest Payment Dates:  February 1 and August 1, commencing February 1, 1999

Regular Record Dates:    the close of business on the fifteenth  day of the
                         month next preceding the month in which the Interest
                         Payment Date occurs, commencing January 15, 1999

          Reference is hereby made to the further provisions of this Security
set forth on the reverse hereof, which further 

- ---------------
(1)  To be used for Global Debenture.

(2)  To be used for Certificated Debentures.


                                       3
<PAGE>

provisions shall for all purposes have the same effect as if set forth at 
this place.

          Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.


                                       4
<PAGE>

         IN WITNESS WHEREOF, the Company has caused this instrument to be
signed manually or by facsimile by its duly authorized officers and a facsimile
of its corporate seal to be affixed hereto or imprinted hereon.

Dated:

                         ZENITH NATIONAL INSURANCE CORP.


                         By:
                            ----------------------------
                            Name:
                            Title:


                         By:
                            ----------------------------
                            Name:
                            Title:



            TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Securities referred to in the within-mentioned
Indenture.

                         NORWEST BANK MINNESOTA,
                              NATIONAL ASSOCIATION, as Trustee


                         By:
                            ----------------------------
                            Authorized Signatory



                                       5
<PAGE>

                 [FORM OF REVERSE OF SECURITY]

                ZENITH NATIONAL INSURANCE CORP.

                       8.55% Subordinated
            Deferrable Interest Debenture due 2028(1)


          1.  INTEREST.  Zenith National Insurance Corp., a Delaware 
corporation (the "Company"), is the issuer of this 8.55% Subordinated 
Deferrable Interest Debenture due 2028 (the "Security") limited in aggregate 
principal amount to $77,320,000, issued under the Indenture hereinafter 
referred to.  The Company promises to pay interest on the Security in cash 
from July 30, 1998 or from the most recent interest payment date to which 
interest has been paid or duly provided for, semi-annually (subject to 
deferral for up to 10 consecutive semi-annual periods as described in Section 
3 hereof) in arrears on February 1 and August 1 of each year (each such date, 
an "Interest Payment Date"), commencing February 1, 1999, at the rate of 
8.55% per annum PLUS Additional Payments, if any, until the principal hereof 
shall have become due and payable.

          The amount of interest payable for any period will be computed on 
the basis of twelve 30-day months and a 360-day year and, for any period of 
less than a full calendar month, the number of days elapsed in such month.  
To the extent lawful, the Company shall pay interest (including post-petition 
interest in any proceeding under any bankruptcy or similar law) on overdue 
installments of interest (without regard to any applicable grace period) at 
the rate borne by the Securities, compounded semi-annually.


- ------------------
1.  All terms used in this Security which are defined in the Indenture or in 
    the Declaration referred to therein shall have the meanings assigned to them
    in the Indenture or the Declaration, as each is defined herein, as the case 
    may be.

<PAGE>

          Any interest paid on this Security shall be increased to the extent
necessary to pay Additional Payments as set forth in this Security.

          2.  ADDITIONAL INTEREST.  The Company shall pay to Zenith National
Insurance Capital Trust I (and its permitted successors or assigns under the
Declaration) (the "Trust") the Additional Interest.

          3.  EXTENSION OF INTEREST PAYMENT PERIOD.  So long as no Event of 
Default (or an event which would be an Event of Default with the giving of 
required notice or the passage of time) has occurred and is continuing, the 
Company shall have the right, at any time during the term of this Security, 
from time to time to defer payments of interest by deferring the interest 
payment period of such Security for up to 10 consecutive semi-annual periods 
(each a "Deferral Period").  To the extent permitted by applicable law, 
interest, the payment of which has been deferred because of the deferral of 
the interest payment period pursuant to Section 3.12 of the Indenture, will 
bear interest thereon at 8.55% compounded semi-annually for each semi-annual 
period of the Deferral Period ("Compounded Interest").  At the end of the 
Deferral Period, the Company shall pay all interest then accrued and unpaid 
on the Securities including any Compounded Interest that shall be payable to 
the Holders of the Securities in whose names the Securities are registered in 
the Security Register on the first Regular Record Date (as defined herein) 
after the end of the Deferral Period.  Before the termination of any Deferral 
Period, the Company may further extend such period so long as no Event of 
Default (or an event which would be an Event of Default with the giving of 
required notice or the passage of time) has occurred and is continuing; 
PROVIDED, that such period together with all such further extensions thereof 
shall not exceed 10 consecutive semi-annual periods or extend beyond the 
Maturity of the Security.  Upon the termination of any Deferral Period and 
upon the payment of all interest and Additional Payments, if any, then due, 
the Company may commence a new Deferral Period, subject to the foregoing 
requirements.  No interest shall be due and payable during a Deferral Period 
except at the end thereof.

                                       2
<PAGE>

          If the Property Trustee is the sole holder of the Security, the
Company shall give the Holder of the Security and the Trustee notice of its
selection of a Deferral Period at least one Business Day prior to the earlier of
(i) the Interest Payment Date or (ii) the date the Trust is required to give
notice to any applicable self-regulatory organization or to holders of the
Capital Securities on the record date or the date such distributions are
payable, but in any event not less than ten Business Days prior to such record
date.

          If the Property Trustee is not the sole holder of the Securities, the
Company shall give the Holders of this Security and the Trustee notice of its
selection of a Deferral Period at least ten Business Days prior to the earlier
of (i) the Interest Payment Date or (ii) the date the Trust is required to give
notice to any applicable self-regulatory organization or to holders of the
Securities on the record date or the date such distributions are payable, but in
any event not less than two Business Days prior to such record date.

          The semi-annual period in which any notice is given pursuant to the
second and third paragraphs of this Section 3 shall be counted as one of the 10
semi-annual periods permitted in the maximum Deferral Period permitted under the
first paragraph of this Section 3.

          4.  METHOD OF PAYMENT.  The interest so payable, and punctually paid
or duly provided for, on any Interest Payment Date will, as provided in the
Indenture, be paid to the Person in whose name this Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest installment, which shall be the close of business
on the fifteenth day of the month next preceding the month in which the Interest
Payment Date occurs (the "Regular Record Date"), commencing January 15, 1999. 
Any such interest not so punctually paid or duly provided for shall forthwith
cease to be payable to the Holder on such Regular Record Date and may either be
paid to the Person in whose name this Security (or one or more Predecessor
Securities) is registered at the close of business on a Special Record Date for
the payment of such Defaulted Interest to be fixed by the Trustee, notice
whereof shall 

                                       3
<PAGE>

be given to Holders of Securities not less than ten days prior to
such Special Record Date, or be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the
Securities may be listed, and upon such notice as may be required by such
exchange, all as more fully provided in said Indenture.

          Payment of the principal of and interest on this Security will be made
at the office or agency of the Company maintained for that purpose, in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; PROVIDED, HOWEVER, that, at the
option of the Company payment of interest may be made by check mailed to the
address of the person entitled thereto as such address shall appear in the
Security Register or by wire transfer to such account at such bank as shall have
been notified to the Trustee and the Company by the Person entitled thereto.

          5.  PAYING AGENT AND SECURITY REGISTRAR.  The Trustee will act as
Paying Agent and Security Registrar.  The Company may change any Paying Agent,
Security Registrar or co-registrar without prior notice.  The company will
notify the Trustee upon any such change.  The Company or any of its Affiliates
may act in any such capacity.

          6.  INDENTURE.  The Company issued the Security under an indenture,
dated as of July 30, 1998 (the "Indenture") between the Company and Norwest Bank
Minnesota, National Association, as Trustee (herein called the "Trustee", which
term includes any successor trustee under the Indenture), to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights, limitations of rights, duties and immunities thereunder
of the Trustee, the Company and the Holders of the Securities, and of the terms
upon which the Securities are, and are to be, authenticated and delivered.  The
terms of the Securities, including those provisions of the Trust Indenture Act
of 1939 (15 U.S. Code Sections 77aaa-77bbbb) ("TIA") specifically incorporated
into the Indenture.  The Securities are subject to, and qualified by, all such
terms, certain of which are summarized hereon, and holders are referred to the
Indenture 

                                       4
<PAGE>

and the TIA for a statement of such terms.  The Securities are
unsecured general obligations of the Company limited to $77,320,000 in the
aggregate principal amount and subordinated in right of payment to all existing
and future Senior Indebtedness of the Company.  No reference herein to the
Indenture and no provision of this Security or of the Indenture shall alter or
impair the obligation of the Company, which is absolute and unconditional, to
pay the principal of and interest on this Security at the times, place and rate,
and in the coin or currency, herein prescribed or to convert this Security as
provided in the Indenture.

          7.  OPTIONAL REDEMPTION.  Subject to the applicable provisions of 
the Indenture, the Company shall have the right to redeem the Securities, in 
whole or in part, at any time or from time to time, after the issuance of the 
Capital Securities, at the Redemption Price (which Redemption Price includes 
the Make-Whole Premium).

          8.  REDEMPTION UPON SPECIAL EVENT.  The Securities are subject to
redemption in whole (but not in part) at any time within 90 days of a Special
Event, if such Special Event shall occur and be continuing and certain other
conditions specified in the Indenture are met, at a redemption price equal to
the Special Event Redemption Price. 

          9.  NOTICE OF REDEMPTION.  Notice of redemption will be mailed at
least 30 days but not more than 60 days before the Redemption Date to each
Holder of the Securities to be redeemed at his address of record.  In the event
of a redemption of less than all of the Securities, the Securities will be
chosen for redemption by the Trustee in accordance with the Indenture.  Subject
to the applicable provisions of the Indenture, on and after the Redemption Date,
interest ceases to accrue on the Securities or portions of them called for
redemption.

          If this Security is redeemed subsequent to a Regular Record Date with
respect to any Interest Payment Date specified above and on or prior to such
Interest Payment Date, then any accrued interest will be paid to the person in
whose name this 

                                       5
<PAGE>

Security is registered at the close of business on such record
date.

          10.  MANDATORY REDEMPTION.  The Securities will mature on August 1,
2028.  Upon the repayment of the Securities, whether at maturity or upon
acceleration or earlier redemption or otherwise, the proceeds from such
repayment or payment (including, without limitation, any Make-Whole Premium or
Special Event Make-Whole Premium) shall simultaneously be applied to redeem
Trust Securities having an aggregate liquidation amount of the Securities so
repaid or redeemed at the applicable redemption price together with accrued and
unpaid distributions through the date of redemption; PROVIDED, that holders of
the Trust Securities shall be given not less than 30 nor more than 60 days
notice of such redemption.

          11.  SUBORDINATION.  The payment of the principal of, interest on or
any other amounts due on the Securities is subordinated in right of payment to
all existing and future Senior Indebtedness (as defined below) of the Company,
as described in the Indenture.  Each holder, by accepting a Security, agrees to
such subordination and authorizes and directs the Trustee on its behalf to take
such action as may be necessary or appropriate to effectuate the subordination
so provided and appoints the Trustee as its attorney-in-fact for such purpose.

          Senior Indebtedness shall mean in respect of the Company (i) the
principal, premium, if any, and interest in respect of (A) indebtedness of the
Company for money borrowed and (B) indebtedness evidenced by securities,
debentures, bonds or other similar instruments issued by the Company, (ii) all
capital lease obligations of the Company, (iii) all obligations of the Company
issued or assumed as the deferred purchase price of property, all conditional
sale obligations of the Company and all obligations of the Company under any
title retention agreement (but excluding trade accounts payable arising in the
ordinary course of business), (iv) all obligations of the Company of the
reimbursement of any letter of credit, banker's acceptance, security purchase
facility or similar credit transaction, (v) all obligations of the type referred
to in clauses (i) through (iv) above of other persons for the payment of which
the Company is 

                                       6
<PAGE>

responsible or liable as obligor, guarantor or otherwise, (vi) all 
obligations of the type referred to in clauses (i) through (v) above of other 
persons secured by any lien on any property or asset of the Company (whether 
or not such obligation is assumed by the Company), except for (1) any such 
indebtedness that is by its terms subordinated to or PARI PASSU with the 
Securities and (2) any indebtedness (including all other debt securities and 
guarantees in respect of those debt securities) initially issued to any other 
trust, or a trustee of such trust, partnership, or other entity affiliated 
with the Company that is, directly or indirectly, a financing vehicle of the 
Company (a "Financing Entity") in connection with the issuance by such 
Financing Entity of preferred securities or other similar securities and 
(vii) interest accruing subsequent to events of bankruptcy of the Company and 
its subsidiaries at the rate provided for in the documentation governing such 
Senior Indebtedness, whether or not such interest is an allowed claim 
enforceable against the debtor in a bankruptcy case under relevant bankruptcy 
law.

          12.  REGISTRATION, TRANSFER, EXCHANGE AND DENOMINATIONS.  As provided
in the Indenture and subject to certain limitations therein set forth, the
transfer of this Security is registrable in the Security Register, upon
surrender of this Security for registration of transfer at the office or agency
of the Company, duly endorsed by, or accompanied by a written instrument of
transfer in form satisfactory to the Company and the Security Registrar duly
executed by, the Holder hereof or his attorney duly authorized in writing, and
thereupon one or more new Securities, of authorized denominations and for the
same aggregate principal amount, will be issued to the designated transferee or
transferees.

          The Securities are issuable only in registered form without coupons in
minimum denominations of $100,000 in principal amount (before giving effect to
any partial redemption) and any integral multiple of $1,000 above $100,000
thereof.  No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.  Prior to
due presentment of this Security for registration of transfer, the Company, the
Trustee and any 

                                       7
<PAGE>

agent of the Company or the Trustee may treat the Person in whose name this 
Security is registered as the owner hereof for all purposes, whether or not 
this Security be overdue, and neither the Company, the Trustee nor any such 
agent shall be affected by notice to the contrary.  In the event of 
redemption or conversion of this Security in part only, a new Security or 
Securities for the unredeemed or unconverted portion hereof will be issued in 
the name of the Holder hereof upon the cancellation hereof.

          13.  PERSONS DEEMED OWNERS.  Except as provided in Section 3 hereof,
the registered Holder of a Security may be treated as its owner for all
purposes.

          14.  UNCLAIMED MONEY.  If money for the payment of principal or
interest remains unclaimed for two years, the Trustee and the Paying Agent shall
pay the money back to the Company at its written request.  After that, holders
of Securities entitled to the money must look to the Company for payment unless
an abandoned property law designates another Person and all liability of the
Trustee and such Paying Agent with respect to such money shall cease.

          15.  DEFAULTS AND REMEDIES.  The Securities shall be subject to the
Events of Default as set forth in Section 5.01 of the Indenture.  Subject to
certain limitations in the Indenture, if an Event of Default occurs and is
continuing, the Trustee by notice to the Company or the Holders of at least 25%
in aggregate principal amount of the then outstanding Securities by notice to
the Company and the Trustee may declare all the principal of all of the
Securities and any other amounts payable under the Indenture to be due and
payable immediately; PROVIDED, that, if the Property Trustee is the sole Holder
of the Security and if, upon an Event of Default, the Trustee or the Holders of
not less than 25% in aggregate principal amount of the then outstanding
Securities fail to declare the principal of all the Securities to be immediately
due and payable, the holders of at least 25% in aggregate liquidation amount of
Capital Securities then outstanding shall have such right by a notice in writing
to the Company and the Trustee; and upon any such declaration such principal and
all accrued interest shall become immediately due and payable; PROVIDED, that
the payment of principal, premium, if 

                                       8
<PAGE>

any, and interest on such Securities shall remain subordinated to the extent 
provided in the Indenture.

          The holders of a majority in principal amount of the Securities then
outstanding by written notice to the Company and the Trustee may rescind an
acceleration and its consequences if the rescission would not conflict with any
judgment or decree and if all existing Events of Default have been cured or
waived except nonpayment of principal or interest that has become due solely
because of the acceleration.  Holders may not enforce the Indenture or the
Securities except as provided in the Indenture.  Subject to certain limitations,
holders of a majority in principal amount of the then outstanding Securities
issued under the Indenture may direct the Trustee in its exercise of any trust
or power.  The Company must furnish annually compliance certificates to the
Trustee and the Property Trustee.  The above description of Events of Default
and remedies is qualified by reference to, and subject in its entirety by, the
more complete description thereof contained in the Indenture.

          16.  AMENDMENTS, SUPPLEMENTS AND WAIVERS.  The Indenture permits,
subject to the rights of holders of Capital Securities set forth therein and in
the Declaration and with certain other exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities under the Indenture at
any time by the Company and the Trustee with the consent of the Holders of a
majority in aggregate principal amount of the Securities at the time
outstanding.  The Indenture also contains provisions permitting the Holders of
specified percentages in aggregate principal amount of the Securities at the
time outstanding, on behalf of the Holders of all the Securities, subject to the
right of the holders of the Capital Securities set forth therein and in the
Declaration, to waive compliance by the Company with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences. 
Any such consent or waiver by the Holder of this Security shall be conclusive
and binding upon such Holder and upon all future Holders of this Security and of
any Security issued upon the registration of transfer hereof or in exchange
therefor or in lieu hereof, whether or not notation of such 

                                       9
<PAGE>

consent or waiver is made upon this Security.  The above description of 
amendments, supplements and waivers is qualified by reference to, and subject 
in its entirety by the more complete description thereof contained in the 
Indenture.

          17.  TRUSTEE DEALINGS WITH THE COMPANY.  The Trustee, in its
individual or any other capacity may become the owner or pledgee of the
Securities and may otherwise deal with the Company or an Affiliate with the same
rights it would have, as if it were not Trustee, subject to certain limitations
provided for in the Indenture.  Any Agent may do the same with like rights.

          18.  NO RECOURSE AGAINST OTHERS.  A director, officer, employee or
stockholder, as such, of the Company shall not have any liability for any
obligations of the Company under the Securities or the Indenture or for any
claim based on, in respect of or by reason of such obligations or their
creation.  Each Holder of the Securities by accepting a Security waives and
releases all such liability.  The waiver and release are part of the
consideration for the issue of the Securities.

          19.  GOVERNING LAW.  THE INTERNAL LAWS OF THE STATE OF NEW YORK SHALL
GOVERN THE INDENTURE AND THE SECURITIES WITHOUT REGARD TO CONFLICTS OF LAWS
PRINCIPLES.

          20.  AUTHENTICATION.  The Securities shall not be valid until
authenticated by the manual signature of an authorized officer of the Trustee or
an authenticating agent.

          21.  ABBREVIATIONS.  Customary abbreviations may be used in the name
of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT
(= tenants by the entireties), JT TEN (= joint tenants with right of
survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A
(= Uniform Gifts to Minors Act).

          22.  AGREED TAX TREATMENT.  The Company and, by its acceptance of this
Security or a beneficial interest therein, the Holder of, and any Person that
acquires a beneficial interest in, this Security agree to treat this Security as
indebtedness for United States federal, state and local tax purposes.

                                       10
<PAGE>

          The Company will furnish to any Holder of the Securities upon written
request and without charge a copy of the Indenture.  Request may be made to:


               Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California 91367-5021

               Attention of:  Chief Financial Officer





                                       11
<PAGE>

                         ASSIGNMENT FORM

          To assign this Security, fill in the form below:

          (I) or (we) assign and transfer this Security to


- --------------------------------------------------------------------------------
      (Insert assignee's social security or tax I.D. no.)


- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
     (Print or type assignee's name, address and zip code)

and irrevocably appoint
                       ---------------------------------------------------------
agent to transfer this Security on the books of the Company.  The agent may
substitute another to act for him. 


                    Your Signature:
                                   ---------------------------------------------
                                   (Sign exactly as your name appears on the
                                   other side of this Security)

                    Date:
                          ------------------------------------------------------

                    Signature Guarantee:  (2)
                                             -----------------------------------
- -------------------
2. Signature must be guaranteed by a commercial bank, trust company or member 
   firm of the New York Stock Exchange.

                                       12
<PAGE>


                            SCHEDULE A

          The initial principal amount of this Global Debenture shall be
$77,320,000.  The following increases or decreases in the principal amount of
this Global Debenture have been made:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                                                   Principal
               Amount of increase               Amount of this
              in Principal Amount    Amount of      Global        Signature of 
                 of this Global     decrease in    Debenture       authorized  
              Debenture including    Principal     Security        officer of  
                upon exercise of     Amount of  following such     Trustee or  
                 over-allotment     this Global   decrease or      Securities  
Date Made            option          Debenture     increase        Custodian   
- -------------------------------------------------------------------------------
<S>          <C>                    <C>          <C>              <C>

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
</TABLE>
                                       13

<PAGE>

- -------------------------------------------------------------------------------




                        CAPITAL SECURITIES GUARANTEE AGREEMENT




                                       Between




                           ZENITH NATIONAL INSURANCE CORP.
                                    (As Guarantor)

                                         and




                     NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION
                      (As Capital Securities Guarantee Trustee)


                              Dated as of July 30, 1998




- -------------------------------------------------------------------------------

<PAGE>

                                  TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                 PAGE
                                                                                 ----
<S>                                                                              <C>
                                      ARTICLE I

                          Definitions and Interpretation

SECTION 1.01.  Definitions and Interpretation...................................    2

                                     ARTICLE II

                                Trust Indenture Act

SECTION 2.01.  Trust Indenture Act; Application.................................    6
SECTION 2.02.  Lists of Holders of Securities...................................    7
SECTION 2.03.  Reports by the Capital Securities Guarantee Trustee..............    7
SECTION 2.04.  Periodic Reports to Capital Securities Guarantee Trustee.........    8
SECTION 2.05.  Evidence of Compliance with Conditions Precedent.................    8
SECTION 2.06.  Events of Default; Waiver........................................    8
SECTION 2.07.  Event of Default; Notice.........................................    8
SECTION 2.08.  Conflicting Interests............................................    9

                                   ARTICLE III

         Powers, Duties and Rights of Capital Securities Guarantee Trustee

SECTION 3.01.  Powers and Duties of the Capital Securities Guarantee Trustee....    9
SECTION 3.02.  Certain Rights of Capital Securities Guarantee Trustee...........   12
SECTION 3.03.  Not Responsible for Recitals or Issuance of Guarantee............   15

                                       i
<PAGE>

                                   ARTICLE IV

                     Capital Securities Guarantee Trustee

SECTION 4.01.  Capital Securities Guarantee Trustee; Eligibility................   16
SECTION 4.02.  Appointment, Removal and Resignation of Capital Securities
               Guarantee Trustee................................................   17

                                   ARTICLE V

                                   Guarantee

SECTION 5.01.  Guarantee........................................................   19
SECTION 5.02.  Subordination....................................................   19
SECTION 5.03.  Waiver of Notice and Demand......................................   19
SECTION 5.04.  Obligations Not Affected.........................................   19
SECTION 5.05.  Rights of Holders................................................   21
SECTION 5.06.  Guarantee of Payment.............................................   21
SECTION 5.07.  Subrogation......................................................   22
SECTION 5.08.  Independent Obligations..........................................   22

                                  ARTICLE VI

                Limitation of Transactions; Subordination

SECTION 6.01.  Limitations of Transactions......................................   22
SECTION 6.02.  Ranking..........................................................   23

                                  ARTICLE VII

                                  Termination

SECTION 7.01.  Termination......................................................   24

                                       ii
<PAGE>

                                  ARTICLE VIII

                                 Indemnification

SECTION 8.01.  Exculpation......................................................   24
SECTION 8.02.  Indemnification..................................................   25
SECTION 8.03.  Compensation and Expenses of Capital Securities Guarantee 
               Trustee..........................................................   26

                                   ARTICLE IX

                                  Miscellaneous

SECTION 9.01.  Successors and Assigns...........................................   27
SECTION 9.02.  Amendments.......................................................   27
SECTION 9.03.  Notices..........................................................   27
SECTION 9.04.  Benefit..........................................................   29
SECTION 9.05.  Governing Law....................................................   29
</TABLE>

                                      iii
<PAGE>

          THIS CAPITAL SECURITIES GUARANTEE AGREEMENT ("Capital Securities 
Guarantee"), dated as of July 30, 1998 is executed and delivered by ZENITH 
NATIONAL INSURANCE CORP., a Delaware corporation (the "Guarantor"), and 
NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION, as trustee (the "Capital 
Securities Guarantee Trustee"), for the benefit of the Holders (as defined 
herein) from time to time of the Capital Securities (as defined herein) of 
ZENITH NATIONAL INSURANCE CAPITAL TRUST I, a Delaware statutory business 
trust (the "Issuer").

          WHEREAS, pursuant to an Amended and Restated Declaration of Trust 
(the "Declaration"), dated as of July 30, 1998, among the individual trustees 
of the Issuer named therein, the Guarantor, as Sponsor, Norwest Bank 
Minnesota, National Association, as Property Trustee, and Wilmington Trust 
Company, as Delaware Trustee, for the benefit of the Holders from time to 
time of undivided beneficial interests in the assets of the Issuer, the 
Issuer is issuing on the date hereof 75,000 Capital Securities having an 
aggregate stated liquidation amount of $75,000,000, designated the 8.55% 
Capital Securities (the "Capital Securities"); and

          WHEREAS as an incentive for the Covered Persons to purchase the 
Capital Securities, the Guarantor desires irrevocably and unconditionally to 
agree, to the extent set forth in this Capital Securities Guarantee, to pay 
to the Holders of the Capital Securities the Guarantee Payments (as defined 
herein) and to make certain other payments on the terms and conditions set 
forth herein.

          NOW, THEREFORE, in consideration of the purchase by each Holder of 
Capital Securities, which purchase the Guarantor hereby agrees shall benefit 
the Guarantor, the Guarantor executes and delivers this Capital Securities 
Guarantee for the benefit of the Holders.

<PAGE>
                                   ARTICLE I

                         DEFINITIONS AND INTERPRETATION 

          SECTION 1.01.  DEFINITIONS AND INTERPRETATION.  In this Capital 
Securities Guarantee, unless the context otherwise requires:

          (a)  capitalized terms used in this Capital Securities Guarantee but
     not defined in the preamble above have the respective meanings assigned to
     them in this Section 1.01;

          (b)  a term defined anywhere in this Capital Securities Guarantee has
     the same meaning throughout; 

          (c)  all references to "the Capital Securities Guarantee" or "this
     Guarantee" are to this Capital Securities Guarantee as modified,
     supplemented or amended from time to time;

          (d)  all references in this Capital Securities Guarantee to Articles
     and Sections are to Articles and Sections of this Capital Securities
     Guarantee unless otherwise specified;

          (e)  a term defined in the Trust Indenture Act has the same meaning
     when used in this Capital Securities Guarantee unless otherwise defined in
     this Capital Securities Guarantee or unless the context otherwise requires;
     and

          (f)  a reference to the singular includes the plural and vice versa.

          "AFFILIATE" has the same meaning as given to that term in Rule 405 of
the Securities Act of 1933, as amended, or any successor rule thereunder.

                                       2
<PAGE>

          "CAPITAL SECURITIES GUARANTEE TRUSTEE" means Norwest Bank Minnesota,
National Association until a Successor Capital Securities Guarantee Trustee has
been appointed and has accepted such appointment pursuant to the terms of this
Capital Securities Guarantee and thereafter means each such Successor Capital
Securities Guarantee Trustee.

          "COMMON SECURITIES" means the common securities representing common
undivided beneficial interest in the assets of the Issuer.

          "COVERED PERSON" means any Holder or beneficial owner of Capital
Securities.

          "DEBENTURES" means the series of subordinated debt securities of the
Guarantor designated the 8.55% Subordinated Deferrable Interest Debentures Due
2028 held by the Property Trustee of the Issuer.

          "DECLARATION" has the meaning set forth in the recitals hereto.

          "EVENT OF DEFAULT" has the meaning set forth in Section 2.06 hereof.

          "GUARANTEE PAYMENTS" means the following payments or distributions,
without duplication, with respect to the Capital Securities, to the extent not
paid or made by or on behalf of the Issuer: (i) any accrued and unpaid
Distributions (as defined in the Declaration) that are required to be paid on
such Capital Securities to the extent the Issuer shall have funds legally
available therefor, (ii) the amount payable upon redemption to the extent the
Issuer has funds legally available therefor, with respect to any Capital
Securities called for redemption by the Issuer, and (iii) upon a voluntary or
involuntary dissolution, winding-up or termination of the Issuer (other than in
connection with the distribution of Debentures to the Holders in exchange for
Capital Securities as provided in 

                                       3
<PAGE>

the Declaration), the lesser of (a) the aggregate of the liquidation amount 
and all accrued and unpaid Distributions on the Capital Securities to the 
date of payment, to the extent the Issuer shall have funds legally available 
therefor, and (b) the amount of assets of the Issuer remaining available for 
distribution to Holders upon liquidation of the Issuer (in either case, the 
"Liquidation Distribution").  If an event of default under the Indenture has 
occurred and is continuing, the rights of holders of the Common Securities to 
receive payments as provided in the Declaration are subordinated to the 
rights of Holders of Capital Securities to receive Guarantee payments.

          "HOLDER" means any holder, as registered on the books and records 
of the Issuer of any Capital Securities; PROVIDED, HOWEVER, that, in 
determining whether the holders of the requisite percentage of Capital 
Securities have given any request, notice, consent or waiver hereunder, 
"Holder" shall not include the Guarantor or any Affiliate of the Guarantor.

          "INDEMNIFIED PERSON" means the Capital Securities Guarantee 
Trustee, any Affiliate of the Capital Securities Guarantee Trustee, or any 
officers, directors, shareholders, members, partners, employees, 
representatives or agents of the Capital Securities Guarantee Trustee.

          "INDENTURE" means the Indenture dated as of July 30, 1998, among 
the Guarantor (the "Debenture Issuer") and Norwest Bank Minnesota, National 
Association, as trustee, and any indenture supplemental thereto pursuant to 
which the Debentures are to be issued to the Property Trustee of the Issuer.

          "LIQUIDATION DISTRIBUTION" has the meaning set forth in the 
definition of "Guarantee Payments" herein.

          "MAJORITY IN LIQUIDATION AMOUNT OF THE CAPITAL SECURITIES" means, 
except as provided in the terms of the Capital Securities and the 
Declaration, Holder(s) of Capital 

                                       4
<PAGE>

Securities, voting separately as a class, representing more than 50% of the 
aggregate liquidation amount of all Capital Securities then outstanding.

          "OFFICERS' CERTIFICATE" means, with respect to any Person, a 
certificate signed by the chairman of the board, president or a vice 
president, and by the treasurer, an assistant treasurer, the controller, the 
secretary or an assistant secretary of such Person, and delivered to the 
Capital Securities Guarantee Trustee.  Any Officers' Certificate delivered 
with respect to compliance with a condition or covenant provided for in this 
Capital Securities Guarantee shall include:

          (a)  a statement that each officer signing the Officers' Certificate 
     has read the covenant or condition and the definitions relating thereto;

          (b)  a brief statement of the nature and scope of the examination or
     investigation undertaken by each officer in rendering the Officers'
     Certificate;

          (c)  a statement that each such officer has made such examination or
     investigation as, in such officer's opinion, is necessary to enable such
     officer to express an informed opinion as to whether or not such covenant
     or condition has been complied with; and

          (d)  a statement as to whether, in the opinion of each such officer,
     such condition or covenant has been complied with.

          "PERSON" means a legal person, including any individual, 
corporation, estate, partnership, joint venture, association, joint stock 
company, limited liability company, trust, unincorporated organization or 
association, or government or any agency or political subdivision thereof, or 
any other entity of whatever nature.

                                       5
<PAGE>

          "RESPONSIBLE OFFICER" means, with respect to the Capital Securities 
Guarantee Trustee, the chairman of the board of directors, the president, any 
vice-president, any assistant vice-president, the secretary, any assistant 
secretary, the treasurer, any assistant treasurer, any trust officer or 
assistant trust officer or any other officer of the Capital Securities 
Guarantee Trustee customarily performing functions similar to those performed 
by any of the above designated officers and also means, with respect to a 
particular corporate trust matter, any other officer to whom such matter is 
referred because of that officer's knowledge of and familiarity with the 
particular subject.

          "SUCCESSOR CAPITAL SECURITIES GUARANTEE TRUSTEE" means a successor 
Capital Securities Guarantee Trustee possessing the qualifications to act as 
Capital Securities Guarantee Trustee under Section 4.01.  Any entity that 
engages in a merger, combination or consolidation with, or acquires all or 
substantially all of the corporate trust business of, a Capital Securities 
Guarantee Trustee shall be a Successor Capital Securities Guarantee Trustee.

          "TRUST INDENTURE ACT" means the Trust Indenture Act of 1939, as 
amended.

                                  ARTICLE II

                              TRUST INDENTURE ACT

          SECTION 2.01.  TRUST INDENTURE ACT; APPLICATION.  This Capital 
Securities Guarantee is not required to and will not be qualified under the 
Trust Indenture Act.  However, this Capital Securities Gurantee is intended 
to comply with the requirements of Sections 310 through 317, inclusive, of 
the Trust Indenture Act and such provisions are specifically incorporated 
herein.  If any provision hereof limits, qualifies or conflicts with a 
provision of the Trust Indenture Act specifically incorporated herein, then 
the provisions of this Capital Securites Guarantee 

                                       6
<PAGE>

shall control; provided that any penalties under the Trust Indenture Act 
relating to noncompliance shall not be applicable to this Capital Securities 
Guarantee, the Guarantor or the Capital Securities Guarantee Trustee.

          SECTION 2.02.  LISTS OF HOLDERS OF SECURITIES.  (a)  The Guarantor 
shall provide the Capital Securities Guarantee Trustee (i) within 14 days 
after each record date for the payment of Distributions (as defined in the 
Declaration), a list, in such form as the Capital Securities Guarantee 
Trustee may reasonably require, of the names and addresses of the Holders of 
the Capital Securities ("List of Holders") as of such date; PROVIDED that the 
Guarantor shall not be obligated to provide such List of Holders at any time 
the List of Holders does not differ from the most recent List of Holders 
given to the Capital Securities Guarantee Trustee by the Guarantor, and (ii) 
at any other time, within 30 days of receipt by the Guarantor of a written 
request for a List of Holders as of a date no more than 14 days before such 
List of Holders is given to the Capital Securities Guarantee Trustee.  The 
Capital Securities Guarantee Trustee may destroy any List of Holders 
previously given to it on receipt of a new List of Holders.

          (b)  The Capital Securities Guarantee Trustee shall comply with its 
obligations under Sections 311(a), 311(b) and 312(b) of the Trust Indenture 
Act.

          SECTION 2.03.  REPORTS BY THE CAPITAL SECURITIES GUARANTEE TRUSTEE. 
Within 60 days after August 1 of each year, commencing August 1, 1999, the 
Capital Securities Guarantee Trustee shall provide to the Holders of the 
Capital Securities such reports as are required by Section 313 of the Trust 
Indenture Act, if any, in the form and in the manner provided by Section 313 
of the Trust Indenture Act.  The Capital Securities Guarantee Trustee shall 
also comply with the requirements of Section 313(d) of the Trust Indenture 
Act.

                                       7
<PAGE>

          SECTION 2.04.  PERIODIC REPORTS TO CAPITAL SECURITIES GUARANTEE 
TRUSTEE.  The Guarantor shall provide to the Capital Securities Guarantee 
Trustee and the Holders such documents, reports and information as required 
by Section 314 (if any) and the compliance certificate required by Section 
314 of the Trust Indenture Act in the form, in the manner and at the times 
required by Section 314 of the Trust Indenture Act.

          SECTION 2.05.  EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.  
The Guarantor shall provide to the Capital Securities Guarantee Trustee such 
evidence of compliance with any conditions precedent, if any, provided for in 
this Capital Securities Guarantee which relate to any of the matters set 
forth in Section 314(c) of the Trust Indenture Act.  Any certificate or 
opinion required to be given by an officer pursuant to Section 314(c)(1) may 
be given in the form of an Officers' Certificate.

          SECTION 2.06.  EVENTS OF DEFAULT; WAIVER.  An event of default 
under this Capital Securities Guarantee will occur upon the failure of the 
Guarantor to perform any of its payment or other obligations hereunder (an 
"Event of Default"); PROVIDED, HOWEVER, that, other than with respect to a 
default on any payment under this Capital Securities Guarantee, the Guarantor 
shall have received notice of default and shall not have cured such default 
within 90 days after receipt of such notice.  The Holders of a Majority in 
liquidation amount of the Capital Securities may, by vote, on behalf of the 
Holders of all of the Capital Securities, waive any past Event of Default and 
its consequences.  Upon such waiver, any such Event of Default shall cease to 
exist, and any Event of Default arising therefrom shall be deemed to have 
been cured, for every purpose of this Capital Securities Guarantee, but no 
such waiver shall extend to any subsequent or other default or Event of 
Default or impair any right consequent therefrom.

          SECTION 2.07.  EVENT OF DEFAULT; NOTICE. (a)  The Capital 
Securities Guarantee Trustee shall, within 90 days 

                                       8
<PAGE>

after the occurrence of an Event of Default, transmit by mail, first class 
postage prepaid, to the Holders of the Capital Securities, notices of all 
Events of Default known to the Capital Securities Guarantee Trustee, unless 
such defaults have been cured before the giving of such notice; PROVIDED that 
except in the case of a default in the payment of a Guarantee Payment, the 
Capital Securities Guarantee Trustee shall be protected in withholding such 
notice if and so long as the board of directors, the executive committee, or 
a trust committee of directors and/or Responsible Officers of the Capital 
Securities Guarantee Trustee in good faith determines that the withholding of 
such notice is in the interests of the Holders of the Capital Securities.

          (b)  The Capital Securities Guarantee Trustee shall not be deemed 
to have knowledge of any Event of Default except any Event of Default as to 
which the Capital Securities Guarantee Trustee shall have received written 
notice or a Responsible Officer charged with the administration of the 
Declaration shall have obtained written notice of such Event of Default.

          SECTION 2.08.  CONFLICTING INTERESTS.  The Declaration shall be 
deemed to be specifically described in this Capital Securities Guarantee for 
the purposes of clause (i) of the first proviso contained in Section 310(b) 
of the Trust Indenture Act.

                                  ARTICLE III

                          POWERS, DUTIES AND RIGHTS OF
                     CAPITAL SECURITIES GUARANTEE TRUSTEE

          SECTION 3.01.  POWERS AND DUTIES OF THE CAPITAL SECURITIES 
GUARANTEE TRUSTEE. (a)  This Capital Securities Guarantee shall be held by 
the Capital Securities Guarantee Trustee for the benefit of the Holders of 
the Capital Securities, and the Capital Securities Guarantee Trustee shall 
not transfer this Capital Securities Guarantee to any 

                                       9
<PAGE>

Person except a Holder of Capital Securities exercising his or her rights 
pursuant to Section 5.05(d) or to a Successor Capital Securities Guarantee 
Trustee on acceptance by such Successor Capital Securities Guarantee Trustee 
of its appointment to act as Successor Capital Securities Guarantee Trustee.  
The right, title and interest of the Capital Securities Guarantee Trustee 
shall automatically vest in any Successor Capital Securities Guarantee 
Trustee, and such vesting and cessation of title shall be effective whether 
or not conveyancing documents have been executed and delivered pursuant to 
the appointment of such Successor Capital Securities Guarantee Trustee.

          (b)  If an Event of Default has occurred and is continuing, the 
Capital Securities Guarantee Trustee shall enforce this Capital Securities 
Guarantee for the benefit of the Holders of the Capital Securities.

          (c)  The Capital Securities Guarantee Trustee, before the 
occurrence of any Event of Default and after the curing of all Events of 
Default that may have occurred, shall undertake to perform only such duties 
as are specifically set forth in this Capital Securities Guarantee, and no 
implied covenants shall be read into this Capital Securities Guarantee 
against the Capital Securities Guarantee Trustee.  In case an Event of 
Default has occurred (that has not been cured or waived pursuant to Section 
2.06), the Capital Securities Guarantee Trustee shall exercise such of the 
rights and powers vested in it by this Capital Securities Guarantee, and use 
the same degree of care and skill in its exercise thereof, as a prudent 
person would exercise or use under the circumstances in the conduct of his or 
her own affairs.

          (d)  No provision of this Capital Securities Guarantee shall be 
construed to relieve the Capital Securities Guarantee Trustee from liability 
for its own negligent action, its own negligent failure to act, or its own 
willful misconduct, except that:

                                       10
<PAGE>

               (i)    prior to the occurrence of any Event of Default and 
     after the curing or waiving of all such Events of Default that may have 
     occurred:

               (A)  the duties and obligations of the Capital Securities 
          Guarantee Trustee shall be determined solely by the express 
          provisions of this Capital Securities Guarantee, and the Capital 
          Securities Guarantee Trustee shall not be liable except for the 
          performance of such duties and obligations as are specifically set 
          forth in this Capital Securities Guarantee, and no implied 
          covenants or obligations shall be read into this Capital Securities 
          Guarantee against the Capital Securities Guarantee Trustee; and

               (B)  in the absence of bad faith on the part of the Capital 
          Securities Guarantee Trustee, the Capital Securities Guarantee 
          Trustee may conclusively rely, as to the truth of the statements 
          and the correctness of the opinions expressed therein, upon any 
          certificates or opinions furnished to the Capital Securities 
          Guarantee Trustee and conforming to the requirements of this 
          Capital Securities Guarantee; but in the case of any such 
          certificates or opinions that by any provision hereof are 
          specifically required to be furnished to the Capital Securities 
          Guarantee Trustee, the Capital Securities Guarantee Trustee shall 
          be under a duty to examine the same to determine whether or not 
          they conform to the requirements of this Capital Securities 
          Guarantee;

               (ii)   the Capital Securities Guarantee Trustee shall not be 
     liable for any error of judgment made in good faith by a Responsible 
     Officer of the Capital Securities Guarantee Trustee, unless it shall be 
     proved that the Capital Securities Guarantee Trustee was 

                                       11
<PAGE>

     negligent in ascertaining the pertinent facts upon which such judgment 
     was made;

               (iii)  the Capital Securities Guarantee Trustee shall not be 
     liable with respect to any action taken or omitted to be taken by it in 
     good faith in accordance with the direction of the Holders of not less 
     than a Majority in liquidation amount of the Capital Securities, 
     relating to the time, method and place of conducting any proceeding for 
     any remedy available to the Capital Securities Guarantee Trustee, or 
     exercising any trust or power conferred upon the Capital Securities 
     Guarantee Trustee under this Capital Securities Guarantee; and

               (iv)   no provision of this Capital Securities Guarantee shall 
     require the Capital Securities Guarantee Trustee to expend or risk its 
     own funds or otherwise incur personal financial liability in the 
     performance of any of its duties or in the exercise of any of its rights 
     or powers, if the Capital Securities Guarantee Trustee shall have 
     reasonable grounds for believing that the repayment of such funds or 
     liability is not reasonably assured to it under the terms of this 
     Capital Securities Guarantee or adequate indemnity against such risk or 
     liability is not reasonably assured to it.

          SECTION 3.02.  CERTAIN RIGHTS OF CAPITAL SECURITIES GUARANTEE 
TRUSTEE. (a)  Subject to the provisions of Section 3.01:

               (i)    the Capital Securities Guarantee Trustee may rely and 
     shall be fully protected in acting or refraining from acting upon any 
     resolution, certificate, statement, instrument, opinion, report, notice, 
     request, direction, consent, order, bond, debenture, note, other 
     evidence of indebtedness or other paper or document believed by it to be 
     genuine 

                                       12
<PAGE>

     and to have been signed, sent or presented by the proper party or 
     parties;

               (ii)   any direction or act of the Guarantor contemplated by 
     this Capital Securities Guarantee shall be sufficiently evidenced by an 
     Officers' Certificate;

               (iii)  whenever, in the administration of this Capital 
     Securities Guarantee, the Capital Securities Guarantee Trustee shall 
     deem it desirable that a matter be proved or established before taking, 
     suffering or omitting any action hereunder, the Capital Securities 
     Guarantee Trustee (unless other evidence is herein specifically 
     prescribed) may, in the absence of bad faith on its part, request and 
     rely upon an Officers' Certificate which, upon receipt of such request, 
     shall be promptly delivered by the Guarantor;

               (iv)   the Capital Securities Guarantee Trustee shall have no 
     duty to see to any recording, filing or registration of any instrument 
     (or any rerecording, refiling or registration thereof);

               (v)    the Capital Securities Guarantee Trustee may consult 
     with legal counsel of its selection, and the written advice or opinion 
     of such legal counsel with respect to legal matters shall be full and 
     complete authorization and protection in respect of any action taken, 
     suffered or omitted to be taken by it hereunder in good faith and in 
     accordance with such advice or opinion.  Such legal counsel may be legal 
     counsel to the Guarantor or any of its Affiliates and may include any of 
     the Guarantor's employees.  The Capital Securities Guarantee Trustee 
     shall have the right at any time to seek instructions concerning the 
     administration of this Capital Securities Guarantee from any court of 
     competent jurisdiction;

               (vi)   the Capital Securities Guarantee Trustee shall be under 
     no obligation to exercise any of the 

                                       13
<PAGE>

     rights or powers vested in it by this Capital Securities Guarantee at 
     the request or direction of any Holder, unless such Holder shall have 
     provided to the Capital Securities Guarantee Trustee such adequate 
     security and indemnity as would satisfy a reasonable person in the 
     position of the Capital Securities Guarantee Trustee, against the costs, 
     expenses (including reasonable attorneys' fees and expenses) and 
     liabilities that might be incurred by it in complying with such request 
     or direction, including such reasonable advances as may be requested by 
     the Capital Securities Guarantee Trustee; PROVIDED that nothing 
     contained in this Section 3.02(a)(vi) shall be taken to relieve the 
     Capital Securities Guarantee Trustee, upon the occurrence of an Event of 
     Default, of its obligation to exercise the rights and powers vested in 
     it by this Capital Securities Guarantee;

               (vii)  the Capital Securities Guarantee Trustee shall not be 
     bound to make any investigation into the facts or matters stated in any 
     resolution, certificate, statement, instrument, opinion, report, notice, 
     request, direction, consent, order, bond debenture, note, other evidence 
     of indebtedness or other paper or document, but the Capital Securities 
     Guarantee Trustee, in its discretion, may make such further inquiry or 
     investigation into such facts or matters as it may see fit;

               (viii) the Capital Securities Guarantee Trustee may execute 
     any of the trusts or powers hereunder or perform any duties hereunder 
     either directly or by or through agents or attorneys, and the Capital 
     Securities Guarantee Trustee shall not be responsible for any misconduct 
     or negligence on the part of any agent or attorney appointed with due 
     care by it hereunder;

               (ix)   any action taken by the Capital Securities Guarantee 
     Trustee or its agents hereunder shall bind the Holders of the Capital 
     Securities, and the 

                                       14
<PAGE>

     signature of the Capital Securities Guarantee Trustee or its agents 
     alone shall be sufficient and effective to perform any such action; it 
     being understood that no third party shall be required to inquire as to 
     the authority of the Capital Securities Guarantee Trustee to so act or 
     as to its compliance with any of the terms and provisions of this 
     Capital Securities Guarantee, both of which shall be conclusively 
     evidenced by the Capital Securities Guarantee Trustee's or its agent's 
     taking such action; and

               (x)    whenever in the administration of this Capital 
     Securities Guarantee the Capital Securities Guarantee Trustee shall deem 
     it desirable to receive instructions with respect to enforcing any 
     remedy or right or taking any other action hereunder, the Capital 
     Securities Guarantee Trustee (i) may request written instructions from 
     the Holders of the Capital Securities or, other than with respect to 
     enforcing any remedy or right or taking any action related thereto, the 
     Guarantor, (ii) may refrain from enforcing such remedy or right or 
     taking such other action until such written instructions are received, 
     and (iii) shall be protected in acting in accordance with such written 
     instructions.

          (b)  No provision of this Capital Securities Guarantee shall be 
deemed to impose any duty or obligation on the Capital Securities Guarantee 
Trustee to perform any act or acts or exercise any right, power, duty or 
obligation conferred or imposed on it, in any jurisdiction in which it shall 
be illegal, or in which the Capital Securities Guarantee Trustee shall be 
unqualified or incompetent in accordance with applicable law, to perform any 
such act or acts or to exercise any such right, power, duty or obligation.  
No permissive power or authority available to the Capital Securities 
Guarantee Trustee shall be construed to be a duty.

          SECTION 3.03.  NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF 
GUARANTEE.  The recitals contained in this 

                                       15
<PAGE>

Capital Securities Guarantee shall be taken as the statements of the 
Guarantor, and the Capital Securities Guarantee Trustee does not assume any 
responsibility for their correctness.  The Capital Securities Guarantee 
Trustee makes no representations as to the validity or sufficiency of this 
Capital Securities Guarantee.

                                   ARTICLE IV

                      CAPITAL SECURITIES GUARANTEE TRUSTEE

          SECTION 4.01.  CAPITAL SECURITIES GUARANTEE TRUSTEE; ELIGIBILITY.  
(a)  There shall at all times be a Capital Securities Guarantee Trustee which 
shall:

               (i)    not be an Affiliate of the Guarantor; and

               (ii)   be a corporation organized and doing business under the 
     laws of the United States of America or any State or Territory thereof 
     or of the District of Columbia, or a corporation or Person permitted by 
     the Securities and Exchange Commission to act as an institutional 
     trustee under the Trust Indenture Act, authorized under such laws to 
     exercise corporate trust powers, having a combined capital and surplus 
     of at least 50 Million U.S. Dollars (U.S.$50,000,000), and subject to 
     supervision or examination by Federal, State, Territorial or District of 
     Columbia authority.  If such corporation publishes reports of condition 
     at least annually, pursuant to law or to the requirements of the 
     supervising or examining authority referred to above, then, for the 
     purposes of this Section 4.01(a)(ii), the combined capital and surplus 
     of such corporation shall be deemed to be its combined capital and 
     surplus as set forth in its most recent report of condition so published.

          (b)  If at any time the Capital Securities Guarantee Trustee shall 
cease to be eligible to so act under 

                                       16
<PAGE>

Section 4.01(a), the Capital Securities Guarantee Trustee shall immediately 
resign in the manner and with the effect set out in Section 4.02(c).

          (c)  If the Capital Securities Guarantee Trustee has or shall 
acquire any "conflicting interest" within the meaning of Section 3.10(b) of 
the Trust Indenture Act, the Capital Securities Guarantee Trustee and 
Guarantor shall in all respects comply with the provisions of Section 3.10(b) 
of the Trust Indenture Act.

          SECTION 4.02.  APPOINTMENT, REMOVAL AND RESIGNATION OF CAPITAL 
SECURITIES GUARANTEE TRUSTEE.  (a)  Subject to Section 4.02(b), the Capital 
Securities Guarantee Trustee may be appointed or removed without cause at any 
time by the Guarantor, except that, if an Event of Default shall have 
occurred and be continuing, the Capital Securities Guarantee Trustee may be 
removed only by the vote of Holders of a Majority in liquidation amount of 
the Capital Securities voting as a class at a meeting of Holders of Capital 
Securities.

          (b)  The Capital Securities Guarantee Trustee shall not be removed 
in accordance with Section 4.02(a) until a Successor Capital Securities 
Guarantee Trustee has been appointed and has accepted such appointment by 
written instrument executed by each Successor Capital Securities Guarantee 
Trustee and delivered to the Guarantor.

          (c)  The Capital Securities Guarantee Trustee appointed to office 
shall hold office until a Successor Capital Securities Guarantee Trustee 
shall have been appointed or until its removal or resignation.  The Capital 
Securities Guarantee Trustee may resign from office (without need for prior 
or subsequent accounting) by an instrument in writing executed by the Capital 
Securities Guarantee Trustee and delivered to the Guarantor, which 
resignation shall not take effect until a Successor Capital Securities 
Guarantee Trustee has been appointed and has accepted such appointment by 
instrument in writing executed by such Successor Capital 

                                       17
<PAGE>

Securities Guarantee Trustee and delivered to the Guarantor and the resigning 
Capital Securities Guarantee Trustee.

          (d)  If no Successor Capital Securities Guarantee Trustee shall 
have been appointed and accepted appointment as provided in this Section 4.02 
within 60 days after delivery to the Guarantor of an instrument of removal or 
resignation, the Capital Securities Guarantee Trustee resigning or being 
removed may petition any court of competent jurisdiction for appointment of a 
Successor Capital Securities Guarantee Trustee.  Such court may thereupon, 
after prescribing such notice, if any, as it may deem proper, appoint a 
Successor Capital Securities Guarantee Trustee.

          (e)  No Capital Securities Guarantee Trustee shall be liable for 
the acts or omissions to act of any Successor Capital Securities Guarantee 
Trustee. No Successor Capital Securities Guarantee Trustee shall be liable 
for the acts or omissions to act of any predecessor Capital Securities 
Guarantee Trustee.

          (f)  Upon termination of this Capital Securities Guarantee or 
resignation of the Capital Securities Guarantee Trustee pursuant to this 
Section 4.02, the Guarantor shall pay to the Capital Securities Guarantee 
Trustee all amounts accrued and owing to the Capital Securities Guarantee 
Trustee on the date of such termination, removal or resignation.

          (g)  The Capital Securities Guarantee Trustee may engage in any 
merger, conversion, consolidation or sale of all or substantially all of its 
corporate trust business, provided that the Successor Capital Securities 
Guarantee Trustee shall be otherwise qualified and eligible under this 
Capital Securities Guarantee Agreement.

                                       18
<PAGE>

                                   ARTICLE V

                                   GUARANTEE

          SECTION 5.01.  GUARANTEE.  The Guarantor irrevocably and 
unconditionally agrees to pay in full to the Holders the Guarantee Payments 
(without duplication of amounts theretofore paid by or on behalf of the 
Issuer), as and when due, regardless of any defense, right of setoff or 
counterclaim that the Issuer may have or assert.  The Guarantor's obligation 
to make a Guarantee Payment may be satisfied by direct payment of the 
required amounts by the Guarantor to the Holders or by causing the Issuer to 
pay such amounts to the Holders.

          SECTION 5.02.  SUBORDINATION.  If an Event of Default (as defined 
in the Indenture), has occurred and is continuing, the rights of Holders of 
the Common Securities to receive payments as provided in the Declaration are 
subordinated to the rights of Holders of Capital Securities to receive 
Guarantee Payments under this Capital Securities Guarantee.

          SECTION 5.03.  WAIVER OF NOTICE AND DEMAND.  The Guarantor hereby 
waives notice of acceptance of this Capital Securities Guarantee and of any 
liability to which it applies or may apply, presentment, demand for payment, 
any right to require a proceeding first against the Issuer or any other 
Person before proceeding against the Guarantor, protest, notice of 
nonpayment, notice of dishonor, notice of redemption and all other notices 
and demands.

          SECTION 5.04.  OBLIGATIONS NOT AFFECTED.  The obligations, 
covenants, agreements and duties of the Guarantor under this Capital 
Securities Guarantee shall in no way be affected or impaired by reason of the 
happening from time to time of any of the following:

          (a)  the release or waiver, by operation of law or otherwise, of 
the performance or observance by the Issuer of 

                                       19
<PAGE>

any express or implied agreement, covenant, term or condition relating to the 
Capital Securities to be performed or observed by the Issuer;

          (b)  the deferral of payment by the Issuer of all or any portion of 
the Distributions, the amount payable upon redemption, the Liquidation 
Distribution or any other sums payable under the terms of the Capital 
Securities or the extension of time for the performance of any other 
obligation under, arising out of, or in connection with, the Capital 
Securities (other than a deferral of payment of Distributions, the amount 
payable upon redemption, Liquidation Distribution or other sum payable that 
results from the extension of any interest payment period on the Debentures 
permitted by the Indenture);

          (c)  any failure, omission, delay or lack of diligence on the part 
of the Holders to enforce, assert or exercise any right, privilege, power or 
remedy conferred on the Holders pursuant to the terms of the Capital 
Securities, or any action on the part of the Issuer granting indulgence or 
extension of any kind;

          (d)  the voluntary or involuntary liquidation, dissolution, sale of 
any collateral, receivership, insolvency, bankruptcy, assignment for the 
benefit of creditors, reorganization, arrangement, composition or 
readjustment of debt of, or other similar proceedings affecting, the Issuer 
or any of the assets of the Issuer;

          (e)  any invalidity of, or defect or deficiency in the Capital 
Securities;

          (f)  the settlement or compromise of any obligation guaranteed 
hereby or hereby incurred; or

          (g)  any other circumstance whatsoever that might otherwise 
constitute a legal or equitable discharge or defense of a guarantor, it being 
the intent of this Section 5.04 that the obligations of the Guarantor 
hereunder 

                                       20
<PAGE>

shall be absolute and unconditional under any and all circumstances.

          There shall be no obligation of the Holders or any other Person to 
give notice to, or obtain consent of, the Guarantor with respect to the 
happening of any of the foregoing.

          SECTION 5.05.  RIGHTS OF HOLDERS.  The Guarantor expressly 
acknowledges that:

          (a)  This Capital Securities Guarantee will be deposited with the 
Capital Securities Guarantee Trustee to be held for the benefit of the 
Holders.

          (b)  The Capital Securities Guarantee Trustee has the right to 
enforce this Capital Securities Guarantee on behalf of the Holders.

          (c)  The Holders of a Majority in liquidation amount of the Capital 
Securities have the right to direct the time, method and place of conducting 
any proceeding for any remedy available to the Capital Securities Guarantee 
Trustee in respect of this Capital Securities Guarantee or exercising any 
power conferred upon the Capital Securities Guarantee Trustee under this 
Capital Securities Guarantee.

          (d)  Any Holder of Capital Securities may institute a legal 
proceeding directly against the Guarantor to enforce its rights under this 
Capital Securities Guarantee, without first instituting a legal proceeding 
against the Issuer, the Capital Securities Guarantee Trustee or any other 
Person.

          SECTION 5.06.  GUARANTEE OF PAYMENT.  This Capital Securities 
Guarantee creates a guarantee of payment and not of collection.  The Capital 
Securities Guarantee will not be discharged except by payment of the 
Guarantee Payments in full (without duplication of amounts theretofore paid 
by the 

                                       21
<PAGE>

Issuer) or upon distribution of Debentures to Holders as provided in the 
Declaration.

          SECTION 5.07.  SUBROGATION.  The Guarantor shall be subrogated to 
all (if any) rights of the Holders of Capital Securities against the Issuer 
in respect of any amounts paid to such Holders by the Guarantor under this 
Capital Securities Guarantee; PROVIDED, HOWEVER, that the Guarantor shall not 
(except to the extent required by mandatory provisions of law) be entitled to 
enforce or exercise any right that it may acquire by way of subrogation or 
any indemnity, reimbursement or other agreement, in all cases as a result of 
payment under this Capital Securities Guarantee, if, at the time of any such 
payment, any amounts are due and unpaid under this Capital Securities 
Guarantee. If any amount shall be paid to the Guarantor in violation of the 
preceding sentence, the Guarantor agrees to hold such amount in trust for the 
Holders and to pay over such amount to the Holders.

          SECTION 5.08.  INDEPENDENT OBLIGATIONS.  The Guarantor acknowledges 
that its obligations hereunder are independent of the obligations of the 
Issuer with respect to the Capital Securities, and that the Guarantor shall 
be liable as principal and as debtor hereunder to make Guarantee Payments 
pursuant to the terms of this Capital Securities Guarantee notwithstanding 
the occurrence of any event referred to in subsections (a) through (g), 
inclusive, of Section 5.04 hereof.

                               ARTICLE VI

                LIMITATION OF TRANSACTIONS; SUBORDINATION

          SECTION 6.01.  LIMITATIONS OF TRANSACTIONS. If (a) an Event of 
Default (as defined in the Indenture) shall have occurred and be continuing, 
(b) the Debentures are held by the Property Trustee, and the Guarantor shall 
be in default with respect to its payment of any obligations under 

                                       22
<PAGE>

this Capital Securities Guarantee or (c) the Guarantor shall have given 
notice of its election of the exercise of its right to defer the interest 
payment period pursuant to the Indenture and any such deferral shall be 
continuing, (i) the Guarantor shall not declare or pay any dividend on, or 
make any distribution with respect to, or redeem, purchase, acquire or make a 
liquidation payment with respect to, any of its capital stock, (ii) the 
Guarantor shall not make any payment of interest, principal or premium, if 
any, on or repay, repurchase or redeem any debt securities issued by the 
Guarantor which rank PARI PASSU with or junior to the Debentures and (iii) 
shall not make any guarantee payments with respect to the foregoing (other 
than (A) dividends or distributions in shares of, or options, warrants, 
rights to subscribe for or purchase shares of, common stock of the Guarantor, 
(B) any declaration of a dividend in connection with the implementation of a 
stockholders' rights plan, or the issuance of stock under any such plan in 
the future, or the redemption or repurchase of any such rights pursuant 
thereto, (C) payments under the Capital Securities Guarantee, (D) as a result 
of a reclassification of the Guarantor's capital stock or the exchange or the 
conversion of one class or series of the Guarantor's capital stock for 
another class or series of the Guarantor's capital stock, (E) the purchase of 
fractional interests in shares of the Guarantor's capital stock pursuant to 
the conversion or exchange provisions of such capital stock or the security 
being converted or exchanged and (F) purchases of the Guarantor's common 
stock in connection with the satisfaction by the Guarantor of its obligations 
(including purchases related to the issuance of such common stock or rights) 
under any of the Guarantor's benefit plans for its and its subsidiaries' 
directors, officers or employees or any of the Guarantor's dividend 
reinvestment plans).

          SECTION 6.02.  RANKING.  This Capital Securities Guarantee will 
constitute an unsecured obligation of the Guarantor and will rank (i) 
subordinate and junior in right of payment to all other liabilities of the 
Guarantor, except any liabilities that may be made PARI PASSU expressly by 

                                       23
<PAGE>

their terms, (ii) PARI PASSU with the most senior preferred or preference 
stock now or hereafter issued by the Guarantor and with any guarantee now or 
hereafter entered into by the Guarantor in respect of any preferred or 
preference stock or preferred security of any Affiliate of the Guarantor, and 
(iii) senior to the Guarantor's common stock.

                                 ARTICLE VII

                                 TERMINATION

          SECTION 7.01.  TERMINATION.  This Capital Securities Guarantee 
shall terminate upon (i) full payment of the amount payable upon redemption 
of all Capital Securities, (ii) the distribution of the Debentures to the 
Holders of all of the Capital Securities or (iii) full payment of the amounts 
payable in accordance with the Declaration upon liquidation of the Issuer.  
Notwithstanding the foregoing, this Capital Securities Guarantee will 
continue to be effective or will be reinstated, as the case may be, if at any 
time any Holder of Capital Securities must restore payment of any sums paid 
under the Capital Securities or under this Capital Securities Guarantee.

                               ARTICLE VIII

                              INDEMNIFICATION

          SECTION 8.01.  EXCULPATION.  (a)  No Indemnified Person shall be 
liable, responsible, or accountable in damages or otherwise to the Guarantor 
or any Covered Person for any loss, damage or claim incurred by reason of any 
act or omission performed or omitted by such Indemnified Person in good faith 
in accordance with this Capital Securities Guarantee and in a manner that 
such Indemnified Person reasonably believed to be within the scope of the 
authority conferred on such Indemnified Person by this Capital Securities 
Guarantee or by law, except that an Indemnified 

                                       24
<PAGE>

Person shall be liable for any such loss, damage or claim incurred by reason 
of such Indemnified Person's negligence or willful misconduct with respect to 
such acts or omissions.

          (b)  An Indemnified Person shall be fully protected in relying in 
good faith upon the records of the Guarantor and upon such information, 
opinions, reports or statements presented to the Guarantor by any Person as 
to matters the Indemnified Person reasonably believes are within such other 
Person's professional or expert competence and who has been selected with 
reasonable care by or on behalf of the Guarantor, including information, 
opinions, reports or statements as to the value and amount of the assets, 
liabilities, profits, losses, or any other facts pertinent to the existence 
and amount of assets from which Distributions to Holders of Capital 
Securities might properly be paid.

          SECTION 8.02.  INDEMNIFICATION.  (a) The Guarantor agrees to 
indemnify each Indemnified Person for, and to hold each Indemnified Person 
harmless against, any and all loss, liability or expense including taxes 
(other than taxes based on the income of such Indemnified Person) incurred 
without negligence or bad faith on its part, arising out of or in connection 
with the acceptance or administration of the trust or trusts hereunder, 
including the costs and expenses (including reasonable legal fees and 
expenses) of defending itself against or investigating any claim or liability 
in connection with the exercise or performance of any of its powers or duties 
hereunder.  The obligation to indemnify as set forth in this Section 8.02 
shall survive the termination of this Capital Securities Guarantee.

          (b)  To the fullest extent permitted by applicable law, expenses 
(including reasonable legal fees and expenses) incurred by an Indemnified 
Person in defending any claim, demand, action, suit or proceeding shall, from 
time to time, be advanced by the Guarantor prior to the final disposition of 
such claim, demand, action, suit or proceeding upon 

                                       25
<PAGE>

receipt by the Guarantor of an undertaking by or on behalf of the Indemnified 
Person to repay such amount if it shall be determined that the Indemnified 
Person is not entitled to be indemnified as authorized in Section 8.02(a).

          (c)  No Indemnified Person shall claim or exact any lien or charge 
on any Guarantee Payments as a result of any amount due to it under this 
Capital Securities Guarantee.

          SECTION 8.03.  COMPENSATION AND EXPENSES OF CAPITAL SECURITIES 
GUARANTEE TRUSTEE.  The Guarantor covenants and agrees to pay to the Capital 
Securities Guarantee Trustee from time to time, and the Capital Securities 
Guarantee Trustee shall be entitled to, such compensation as shall be agreed 
to in writing between the Guarantor and the Capital Securities Guarantee 
Trustee (which shall not be limited by any provision of law in regard to the 
compensation of a trustee of an express trust), and the Guarantor will pay or 
reimburse the Capital Securities Guarantee Trustee upon its request for all 
reasonable expenses, disbursements and advances incurred or made by the 
Capital Securities Guarantee Trustee in accordance with any of the provisions 
of this Capital Securities Guarantee (including the reasonable compensation 
and the expenses and disbursements of its counsel and of all persons not 
regularly in its employ) except any such expense, disbursement or advance as 
may arise from the Capital Securities Guarantee Trustee's negligence or bad 
faith.  The Guarantor also covenants to indemnify each of the Capital 
Securities Guarantee Trustee (and its officers, agents, directors and 
employees) for, and to hold it harmless against, any and all loss, damage, 
claim, liability or expense including taxes (other than taxes based on the 
income of the Capital Securities Guarantee Trustee) incurred without 
negligence or bad faith on the part of the Capital Securities Guarantee 
Trustee and arising out of or in connection with the acceptance or 
administration of this Capital Securities Guarantee, including the costs and 

                                       26
<PAGE>

expenses of defending itself against any claim of liability in the premises.

          The provisions of this Article shall survive the termination of 
this Capital Securities Guarantee.

                                   ARTICLE IX

                                  MISCELLANEOUS

          SECTION 9.01.  SUCCESSORS AND ASSIGNS.  All guarantees and 
agreements contained in this Capital Securities Guarantee shall bind the 
successors, assigns, receivers, trustees and representatives of the Guarantor 
and shall inure to the benefit of the Holders of the Capital Securities then 
outstanding.  Except in connection with any merger or consolidation of the 
Guarantor with or into another entity as permitted by the Indenture or any 
sale, transfer or lease of the Guarantor's assets to another entity as 
permitted by the Indenture, the Guarantor may not assign its rights or 
delegate its obligations under the Capital Securities Guarantee without the 
prior approval of the Holders of at least 66 2/3% of the aggregate 
liquidation amount of the Capital Securities then outstanding.

          SECTION 9.02.  AMENDMENTS.  Except with respect to any changes that 
do not adversely affect the rights of Holders (in which case no consent of 
Holders will be required), this Capital Securities Guarantee may only be 
amended with the prior approval of the Holders of at least 66 2/3% in 
liquidation amount of all the outstanding Capital Securities.  The provisions 
of Section 12.2 of the Declaration with respect to meetings of Holders of the 
Capital Securities apply to the giving of such approval.

          SECTION 9.03.  NOTICES.  All notices provided for in this Capital 
Securities Guarantee shall be in writing, duly signed by the party giving 
such notice, and shall be 

                                       27
<PAGE>

delivered, telecopied or mailed by first-class mail, as follows:

          (a)  If given to the Capital Securities Guarantee Trustee, at the 
Capital Securities Guarantee Trustee's mailing address set forth below (or 
such other address as the Capital Securities Guarantee Trustee may give 
notice of to the Holders of the Capital Securities and to the Guarantor):

          Norwest Bank Minnesota, National Association
          Sixth & Marquette
          Minneapolis, Minnesota 55479-0069
          Attention:     Corporate Trust Administration, 
                         Zenith National Capital Trust I

          Telecopy No.: (612) 667-9825

          (b)  If given to the Guarantor, at the Guarantor's mailing address 
set forth below (or such other address as the Guarantor may give notice of to 
the Holders of the Capital Securities and the Capital Securities Guarantee 
Trustee):

          Zenith National Insurance Corp.
          21255 Califa Street
          Woodland Hills, California 91367-5021
          Attention:     Chairman and President

          Telecopy No.: (813)713-0177

          (c)  If given to any Holder of Capital Securities, at the address 
set forth on the books and records of the Issuer.

          All such notices shall be deemed to have been given when received 
in person, telecopied with receipt confirmed, or mailed by first class mail, 
postage prepaid except that if a notice or other document is refused 

                                       28
<PAGE>

delivery or cannot be delivered because of a changed address of which no 
notice was given, such notice or other document shall be deemed to have been 
delivered on the date of such refusal or inability to deliver.

          SECTION 9.04.  BENEFIT.  This Capital Securities Guarantee is 
solely for the benefit of the Holders of the Capital Securities and, subject 
to Section 3.01(a), is not separately transferable from the Capital 
Securities.

          SECTION 9.05.  GOVERNING LAW.  THIS CAPITAL SECURITIES GUARANTEE 
SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE 
LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

                                       29
<PAGE>

     THIS CAPITAL SECURITIES GUARANTEE is executed as of the day and year 
first above written.

                    ZENITH NATIONAL INSURANCE CORP.,
                         as Guarantor



                    By: /s/ Stanley R. Zax
                       -----------------------------
                       Stanley R. Zax
                       Chairman and President


                    NORWEST BANK MINNESOTA, NATIONAL
                         ASSOCIATION, as Capital Securities
                         Guarantee Trustee



                    By: /s/ Jane Y. Schweiger
                       -----------------------------------
                       Jane Y. Schweiger
                       Corporate Trust Officer




<PAGE>

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------


                              AMENDED AND RESTATED
                              DECLARATION OF TRUST



                                      OF



                   ZENITH NATIONAL INSURANCE CAPITAL TRUST I







                            Dated as of July 30, 1998




- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------

<PAGE>

                      TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                    Page
                                                                                    ----
<S>                 <C>                                                             <C>
ARTICLE I           Interpretation and Definitions.................................   2
     SECTION 1.1.   Definitions....................................................   2

ARTICLE II          Trust Indenture Act............................................   9
     SECTION 2.1.   Trust Indenture Act; Application...............................   9
     SECTION 2.2.   Lists of Holders of Securities.................................   9
     SECTION 2.3.   Reports by the Property Trustee................................  10
     SECTION 2.4.   Periodic Reports to Property Trustee...........................  10
     SECTION 2.5.   Evidence of Compliance with Conditions Precedent...............  10
     SECTION 2.6.   Events of Default; Waiver......................................  10
     SECTION 2.7.   Event of Default; Notice.......................................  12

ARTICLE III         Organization...................................................  13
     SECTION 3.1.   Name...........................................................  13
     SECTION 3.2.   Office.........................................................  13
     SECTION 3.3.   Purpose........................................................  13
     SECTION 3.4.   Authority......................................................  13
     SECTION 3.5.   Title to Property of the Trust.................................  14
     SECTION 3.6.   Powers and Duties of the Regular Trustees......................  14
     SECTION 3.7.   Prohibition of Actions by the Trust and the Trustees...........  17
     SECTION 3.8.   Powers and Duties of the Property Trustee......................  18
     SECTION 3.9.   Certain Duties and Responsibilities of the Property Trustee....  20
     SECTION 3.10.  Certain Rights of Property Trustee.............................  22
     SECTION 3.11.  Delaware Trustee...............................................  24
     SECTION 3.12.  Execution of Documents.........................................  24
     SECTION 3.13.  Not Responsible for Recitals or Issuance of Securities.........  24
     SECTION 3.14.  Duration of Trust..............................................  25
     SECTION 3.15.  Mergers........................................................  25

                                       i
<PAGE>

ARTICLE IV          Sponsor........................................................  27
     SECTION 4.1.   Sponsor's Purchase of Common Securities........................  27
     SECTION 4.2.   Responsibilities of the Sponsor................................  27

ARTICLE V           Trustees.......................................................  27
     SECTION 5.1.   Number of Trustees.............................................  27
     SECTION 5.2.   Delaware Trustee...............................................  28
     SECTION 5.3.   Property Trustee; Eligibility..................................  28
     SECTION 5.4.   Qualifications of Regular Trustees.............................  29
     SECTION 5.5.   Initial Trustees...............................................  29
     SECTION 5.6.   Appointment, Removal and Resignation of Trustees...............  30
     SECTION 5.7.   Vacancies Among Trustees.......................................  31
     SECTION 5.8.   Effect of Vacancies............................................  32
     SECTION 5.9.   Meetings.......................................................  32
     SECTION 5.10.  Delegation of Power............................................  32
     SECTION 5.11.  Merger, Conversion, Consolidation or Succession to Business....  33

ARTICLE VI          Distributions..................................................  33
     SECTION 6.1.   Distributions..................................................  33

ARTICLE VII         Issuance of Securities.........................................  34
     SECTION 7.1.   General Provisions Regarding Securities........................  34
     SECTION 7.2.   Execution and Authentication...................................  34
     SECTION 7.3.   Book-Entry Capital Securities Certificates; Definitive 
                    Capital Securities Certificates; Common Securities 
                    Certificate....................................................  35
     SECTION 7.4.   Registrar and Paying Agent.....................................  38
     SECTION 7.5.   Paying Agent to Hold Money in Trust............................  38
     SECTION 7.6.   Replacement Securities.........................................  39
     SECTION 7.7.   Outstanding Capital Securities.................................  39
     SECTION 7.8.   Capital Securities in Treasury.................................  39
     SECTION 7.9.   Temporary Certificates.........................................  40
     SECTION 7.10.  Cancellation...................................................  41

                                       ii
<PAGE>
     SECTION 7.11.  CUSIP Numbers..................................................  41

ARTICLE VIII        Termination of Trust...........................................  41
     SECTION 8.1.   Termination of Trust...........................................  41

ARTICLE IX          Transfer of Interests..........................................  43
     SECTION 9.1.   Transfer of Securities.........................................  43
     SECTION 9.2.   Transfer Procedures and Restrictions...........................  43
     SECTION 9.3.   Deemed Security Holders........................................  51
     SECTION 9.4.   Book Entry Interests...........................................  52
     SECTION 9.5.   Notices to Depositary..........................................  52
     SECTION 9.6.   Appointment of Successor Depositary............................  52

ARTICLE X           Limitation of Liability ofHolders of Securities, Trustees 
                    or Others......................................................  53
     SECTION 10.1.  Liability......................................................  53
     SECTION 10.2.  Exculpation....................................................  53
     SECTION 10.3.  Fiduciary Duty.................................................  54
     SECTION 10.4.  Indemnification................................................  55
     SECTION 10.5.  Outside Businesses.............................................  55

ARTICLE XI          Accounting.....................................................  56
     SECTION 11.1.  Fiscal Year....................................................  56
     SECTION 11.2.  Certain Accounting Matters.....................................  56
     SECTION 11.3.  Banking........................................................  56
     SECTION 11.4.  Withholding....................................................  57

ARTICLE XII         Amendments and Meetings........................................  57
     SECTION 12.1.  Amendments.....................................................  57
     SECTION 12.2.  Meetings of the Holders of Securities; Action by 
                    Written Consent................................................  59

                                       iii
<PAGE>

ARTICLE XIII        Representations of Delaware Trustee............................  61
     SECTION 13.1.  Representations and Warranties of Delaware Trustee.............  61

ARTICLE XIV         Representations of Property Trustee............................  62
     SECTION 14.1.  Representations and Warranties of Property Trustee.............  62

ARTICLE XV          Miscellaneous..................................................  63
     SECTION 15.1.  Notices........................................................  63
     SECTION 15.2.  Governing Law..................................................  65
     SECTION 15.3.  Intention of the Parties.......................................  65
     SECTION 15.4.  Headings.......................................................  65
     SECTION 15.5.  Successors and Assigns.........................................  65
     SECTION 15.6.  Partial Enforceability.........................................  65
     SECTION 15.7.  Counterparts...................................................  65


                                       iv
<PAGE>

ANNEX I           TERMS OF 8.55% CAPITAL SECURITIES 8.55% COMMON SECURITIES

EXHIBIT A    -    FORM OF 144A GLOBAL SECURITY

EXHIBIT B    -    FORM OF REGULATION S GLOBAL SECURITY

EXHIBIT C    -    FORM OF DEFINITIVE CAPITAL SECURITY

EXHIBIT D    -    FORM OF CERTIFICATE EVIDENCING COMMON SECURITIES

EXHIBIT E    -    FORM OF LETTER TO BE DELIVERED BY INSTITUTIONAL ACCREDITED 
                  INVESTORS

EXHIBIT F    -    FORM OF TRANSFER CERTIFICATE-- REGULATION S GLOBAL SECURITY 
                  OR INSTITUTIONAL ACCREDITED INVESTORS DEFINITIVE TO 144A 
                  GLOBAL SECURITY

EXHIBIT G    -    FORM OF TRANSFER CERTIFICATE--144A GLOBAL SECURITY OR 
                  INSTITUTIONAL ACCREDITED INVESTORS DEFINITIVE TO REGULATION S
                  GLOBAL SECURITY
</TABLE>


                                       v
<PAGE>

                  AMENDED AND RESTATED DECLARATION OF TRUST
                                      OF
                  ZENITH NATIONAL INSURANCE CAPITAL TRUST I

                                July 30, 1998

          AMENDED AND RESTATED DECLARATION OF TRUST ("Declaration") dated and 
effective as of July 30, 1998, by the undersigned trustees (together with all 
other persons from time to time duly appointed and serving as trustees in 
accordance with the provisions of this Declaration, the "Trustees"), Zenith 
National Insurance Corp., a Delaware corporation, as trust sponsor (the 
"Sponsor"), and by the holders, from time to time, of undivided beneficial 
interests in the Trust issued pursuant to the Declaration;

          WHEREAS, the Trustees and the Sponsor established a trust (the 
"Trust") under the Business Trust Act (as hereinafter defined) pursuant to a 
Declaration of Trust dated as of June 30, 1998 (the "Original Declaration"), 
and a Certificate of Trust filed with the Secretary of State of the State of 
Delaware on June 30, 1998, for the sole purpose of issuing and selling 
certain securities representing undivided beneficial interests in the assets 
of the Trust, investing the proceeds thereof in certain Debentures of the 
Debenture Issuer (as hereinafter defined) and making Distributions (as 
hereinafter defined); 

          WHEREAS, as of the date hereof, no interests in the Trust have been 
issued; and

          WHEREAS, all of the Trustees and the Sponsor, by this Declaration, 
amend and restate each and every term and provision of the Original 
Declaration; 

          NOW, THEREFORE, it being the intention of the parties hereto to 
continue the Trust as a business trust under the Business Trust Act and that 
this Declaration constitute the governing instrument of such business trust, 
the Trustees declare that all assets contributed to the Trust will be held in 
trust for the benefit of the holders, from time to time, of the securities 
representing undivided beneficial interests in the assets of the Trust issued 
hereunder, subject to the provisions of this Declaration.

<PAGE>
                                       
                                   ARTICLE I

                         INTERPRETATION AND DEFINITIONS

          SECTION 1.1.  DEFINITIONS.  Unless the context otherwise requires:

          (a)  Capitalized terms used in this Declaration but not defined in 
the preamble above have the respective meanings assigned to them in this 
Section 1.1;

          (b)  a term defined anywhere in this Declaration has the same 
meaning throughout;

          (c)  all references to "the Declaration" or "this Declaration" are 
to this Declaration as modified, supplemented or amended from time to time;

          (d)  all references in this Declaration to Articles and Sections 
and Exhibits are to Articles and Sections of and Exhibits to this Declaration 
unless otherwise specified;

          (e)  a term defined in the Trust Indenture Act has the same meaning 
when used in this Declaration unless otherwise defined in this Declaration or 
unless the context otherwise requires; and

          (f)  a reference to the singular includes the plural and vice versa.

          "AFFILIATE" has the same meaning as given to that term in Rule 405 
of the Securities Act or any successor rule thereunder.

          "AGENT" means any Registrar, Paying Agent or co-registrar.

          "AUTHORIZED OFFICER" of a Person means any Person that is 
authorized to bind such Person.

          "BENEFICIARIES" has the meaning set forth in Section 4.3(a).

          "BOOK ENTRY INTEREST" means a beneficial interest in a Global 
Certificate, ownership and transfers of which shall be maintained and made 
through book entries by a Depositary as described in Section 7.3.

                                       2
<PAGE>

          "BUSINESS DAY" means any day other than a day on which banking 
institutions in Los Angeles, California, New York, New York or Minneapolis, 
Minnesota are authorized or required by law to close.

          "BUSINESS TRUST ACT" means Chapter 38 of Title 12 of the Delaware 
Code, 12 Del. Code Section 3801 ET SEQ., as it may be amended from time to 
time.

          "CAPITAL SECURITIES" has the meaning specified in Section 7.1(a).

          "CAPITAL SECURITIES GUARANTEE" means the guarantee agreement to be 
dated as of July 30, 1998, between the Sponsor and Norwest Bank Minnesota, 
National Association, as Guarantee Trustee, in respect to the Capital 
Securities.

          "CAPITAL SECURITY BENEFICIAL OWNER" means, with respect to a Book 
Entry Interest, a Person who is the beneficial owner of such Book Entry 
Interest, as reflected on the books of the Depositary, or on the books of a 
Person maintaining an account with such Depositary (directly as a Participant 
or as an indirect participant, in each case in accordance with the rules of 
such Depositary).

          "CEDEL" means Cedel Bank, societe anonyme.

          "CERTIFICATE" means a certificate in global or definitive form 
representing a Common Security or a Capital Security.

          "CLOSING DATE" means the Closing Date as defined in the Purchase 
Agreement.

          "CODE" means the Internal Revenue Code of 1986, as amended.

          "COMMISSION" means the United States Securities and Exchange 
Commission or any successor thereto.

          "COMMON SECURITIES" has the meaning specified in Section 7.1(a).

          "COVERED PERSON" means: (a) any officer, director, shareholder, 
partner, member, representative, employee or agent of (i) the Trust or (ii) 
the Trust's Affiliates; and (b) any Holder of Securities.

          "DEBENTURE ISSUER" means Zenith National Insurance Corp., as issuer 
of the Debentures.

                                       3
<PAGE>

          "DEBENTURES" means the series of 8.55% Subordinated Deferrable 
Interest Debentures due 2028 to be issued by the Debenture Issuer under the 
Indenture to be held by the Property Trustee.

          "DEFINITIVE CAPITAL SECURITIES" means the Capital Securities in 
definitive form issued by the Trust, a specimen certificate for such Capital 
Securities being attached hereto as Exhibit C.

          "DELAWARE TRUSTEE" has the meaning set forth in Section 5.2.

          "DEPOSITARY" means The Depository Trust Company, the initial 
depositary, or any replacement depositary or successor to any of the 
foregoing.

          "DISTRIBUTION" means a distribution payable to Holders of 
Securities in accordance with Section 6.1.

          "EUROCLEAR" means the Euroclear System.

          "EVENT OF DEFAULT" in respect of the Securities means an Event of 
Default (as defined in the Indenture) in respect of the Debentures or a 
default by the Sponsor under the Capital Securities Guarantee, which has 
occurred and is continuing.

          "EXCHANGE ACT" means the Securities Exchange Act of 1934, as 
amended from time to time, or any successor legislation.

          "GLOBAL CAPITAL SECURITY" has the meaning set forth in Section 
7.3(b).

          "HOLDER" means a Person in whose name a Certificate representing a 
Security is registered, such Person being a beneficial owner within the 
meaning of the Business Trust Act.

          "INDEMNIFIED PERSON" means (a) any Trustee; (b) any Affiliate of 
any Trustee; (c) any officers, directors, shareholders, members, partners, 
employees, representatives or agents of any Trustee; or (d) any employee or 
agent of the Trust or its Affiliates.

          "INDENTURE" means the Indenture dated as of July 30, 1998, between 
the Debenture Issuer and Norwest Bank Minnesota, National Association, as 
trustee, and any indenture supplemental thereto pursuant to which the 
Debentures are to be issued.

                                       4
<PAGE>

          "INDENTURE TRUSTEE" means Norwest Bank Minnesota, National 
Association, as trustee under the Indenture until a successor is appointed 
thereunder, and thereafter means such successor trustee.

          "INSTITUTIONAL ACCREDITED INVESTOR" means an institutional investor 
that is an "accredited investor" within the meaning of Rule 501(a)(1), (2), 
(3) or (7) under the Securities Act.

          "INVESTMENT COMPANY" means an investment company as defined in the 
Investment Company Act.

          "INVESTMENT COMPANY ACT" means the Investment Company Act of 1940, 
as amended from time to time, or any successor legislation.

          "LEGAL ACTION" has the meaning set forth in Section 3.6(g).

          "LIST OF HOLDERS" has the meaning set forth in Section 2.2(a).

          "MAJORITY IN LIQUIDATION AMOUNT" means, except as otherwise 
provided in the terms of the Capital Securities, Holder(s) of outstanding 
Securities voting together as a single class or, as the context may require, 
Holders of outstanding Capital Securities or Holders of outstanding Common 
Securities voting separately as a class, who are the record owners of more 
than 50% of the aggregate liquidation amount of all outstanding Securities, 
Capital Securities and/or Common Securities, as the case may be.

          "OBLIGATIONS" means any costs, expenses or liabilities of the 
Trust, other than obligations of the Trust to pay to Holders of any 
Securities or other similar interests in the Trust the amounts due such 
Holders pursuant to the terms of the Securities or such other similar 
interests, as the case may be.

          "OFFERING CIRCULAR" has the meaning set forth in Section 3.6(b)(i).

          "OFFICERS' CERTIFICATE" means, with respect to any Person, a 
certificate signed by two Authorized Officers of such Person.  Any Officers' 
Certificate delivered with respect to compliance with a condition or covenant 
provided for in this Declaration shall include:

          (a)  a statement that each officer signing the Officers' 
Certificate has read the covenant or condition and the definition relating 
thereto;

                                       5
<PAGE>

          (b)  a brief statement of the nature and scope of the examination or
     investigation undertaken by each officer in rendering the Officers'
     Certificate;

          (c)  a statement that each such officer has made such examination or
     investigation as, in such officer's opinion, is necessary to enable such
     officer to express an informed opinion as to whether or not such covenant
     or condition has been complied with; and

          (d)  a statement as to whether, in the opinion of each such officer,
     such condition or covenant has been complied with.

          "PARTICIPANT" means a member of, or participant in, the Depositary.

          "PAYING AGENT" has the meaning specified in Section 7.4.

          "PERSON" means a legal person, including any individual, 
corporation, estate, partnership, joint venture, association, joint stock, 
limited liability company, trust, unincorporated association, or government 
or any agency or political subdivision thereof, or any other entity of 
whatever nature.

          "PROPERTY TRUSTEE" means the Trustee meeting the eligibility 
requirements set forth in Section 5.3.

          "PROPERTY ACCOUNT" has the meaning set forth in Section 3.8(c).

          "PURCHASE AGREEMENT" means the Purchase Agreement, dated July 27, 
1998, among the Sponsor, the Trust and Credit Suisse First Boston 
Corporation, BancAmerica Robertson Stephens and Donaldson, Lufkin & Jenrette 
Securities Corporation.

          "QIB" means a qualified institutional buyer as defined in Rule 144A.

          "QUORUM" means a majority of the Regular Trustees or, if there are 
only two Regular Trustees, both of them.

          "REGISTRAR" has the meaning set forth in Section 7.4.

          "REGULAR TRUSTEE" means any Trustee other than the Property Trustee 
and the Delaware Trustee.

                                       6
<PAGE>

          "REGULATION S" means Regulation S under the Securities Act or any 
successor provision thereto, as the same may be amended from time to time.

          "REGULATION S CAPITAL SECURITIES" has the meaning set forth in 
Section 7.3(b).

          "RESPONSIBLE OFFICER" means, with respect to the Property Trustee, 
any vice-president, any assistant vice-president, the treasurer, any 
assistant treasurer, any trust officer or assistant trust officer or any 
other officer in Corporate Trust Administration of the Property Trustee 
customarily performing functions similar to those performed by any of the 
above designated officers and also means, with respect to a particular 
corporate trust matter, any other officer to whom such matter is referred 
because of that officer's knowledge of and familiarity with the particular 
subject.

          "RESTRICTED DEFINITIVE CAPITAL SECURITIES" has the meaning set 
forth in Section 7.3(c).

          "RESTRICTED CAPITAL SECURITY" means a Capital Security required by 
Section 9.2 to contain a Restricted Securities Legend.

          "RESTRICTED PERIOD" means the period of 40 consecutive days 
beginning on and including the later of (x) the day on which the offering of 
the Capital Securities commences or (y) the Closing Date.

          "RESTRICTED SECURITIES LEGEND" has the meaning set forth in Section 
9.2(h).

          "RULE 144" means Rule 144 under the Securities Act, as such rule 
may be amended from time to time, or any similar rule or regulation hereafter 
adopted by the Commission.

          "RULE 144A" means Rule 144A under the Securities Act, as such rule 
may be amended from time to time, or any similar rule or regulation hereafter 
adopted by the Commission.

          "RULE 144A CAPITAL SECURITIES" has the meaning set forth in Section 
7.3(a).

          "RULE 144(k)" means Rule 144(k) as promulgated under the Securities 
Act, or any successor provision thereto, as the same may be amended from time 
to time.

                                       7
<PAGE>

          "RULE 3a-5" means Rule 3a-5 under the Investment Company Act, or 
any successor rule or regulation.

          "SECURITIES" means the Common Securities and the Capital Securities.

          "SECURITIES ACT" means the Securities Act of 1933, as amended.

          "66-2/3% IN LIQUIDATION AMOUNT" means, except as otherwise provided 
in the terms of the Capital Securities, Holders of outstanding Securities 
voting as a single class or, as the context may require, Holders of 
outstanding Capital Securities or Holder(s) of outstanding Common Securities 
voting separately as a class, representing at least 66-2/3% of the aggregate 
liquidation amount of all outstanding Securities, Capital Securities and/or 
Common Securities, as the case may be. 

          "SPECIAL EVENT" has the meaning set forth in the Indenture.

          "SPONSOR" means Zenith National Insurance Corp., a Delaware 
corporation, or any successor entity in a merger, consolidation or 
amalgamation, in its capacity as sponsor of the Trust.

          "SUPER MAJORITY" has the meaning set forth in Section 2.6(a)(ii).

          "10% IN LIQUIDATION AMOUNT" means, except as otherwise provided in 
the terms of the Capital Securities, Holders of outstanding Securities voting 
together as a single class or, as the context may require, Holders of 
outstanding Capital Securities or Holders of outstanding Common Securities, 
voting separately as a class, representing 10% of the aggregate liquidation 
amount of all outstanding Securities, Capital Securities and/or Common 
Securities, as the case may be.

          "TERMS" has the meaning set forth in Section 7.1(a).

          "TREASURY REGULATIONS" means the income tax regulations, including 
temporary and proposed regulations, promulgated under the Code by the United 
States Treasury, as such regulations may be amended from time to time 
(including corresponding provisions to succeeding regulations).

          "TRUST INDENTURE ACT" means the Trust Indenture Act of 1939, as 
amended from time to time.

                                       8
<PAGE>

          "TRUSTEE" or "TRUSTEES" means each Person who has signed this 
Declaration as a trustee, so long as such Person shall continue in office in 
accordance with the terms hereof, and all other Persons who may from time to 
time be duly appointed, qualified and serving as Trustees in accordance with 
the provisions hereof, and references herein to a Trustee or the Trustees 
shall refer to such Person or Persons solely in their capacity as trustees 
hereunder.

                                     ARTICLE II

                                TRUST INDENTURE ACT

          SECTION 2.1.  TRUST INDENTURE ACT; APPLICATION.  (a)  This 
Declaration is not required to and will not be qualified under the Trust 
Indenture Act. However, this Declaration is intended to comply with the 
requirements of Sections 310 through 317, inclusive, of the Trust Indenture 
Act and such provisions are specifically incorporated herein.  If any 
provision hereof limits, qualifies or conflicts with a provision of the Trust 
Indenture Act specifically incorporated herein, then the provisions of this 
Declaration shall control; provided that any penalties under the Trust 
Indenture Act relating to noncompliance shall not be applicable to this 
Declaration.

          (b)  The Property Trustee shall be the only Trustee which is a 
trustee for the purposes of the Trust Indenture Act.

          (c)  The application of the Trust Indenture Act to this Declaration 
shall not affect the nature of the Securities as equity securities 
representing undivided beneficial interests in the assets of the Trust.

          SECTION 2.2.  LISTS OF HOLDERS OF SECURITIES.  (a)  Each of the 
Sponsor and the Regular Trustees on behalf of the Trust shall provide the 
Property Trustee (i) within 14 days after each record date for payment of 
Distributions, a list, in such form as the Property Trustee may reasonably 
require, of the names and addresses of the Holders of the Securities ("List 
of Holders") as of such record date; PROVIDED THAT neither the Sponsor nor 
the Regular Trustees on behalf of the Trust shall be obligated to provide 
such List of Holders at any time the List of Holders does not differ from the 
most recent List of Holders given to the Property Trustee by the Sponsor and 
the Regular Trustees on behalf of the Trust, and (ii) a List of Holders at 
any other time, within 30 days of receipt by the Trust of a written request 
for a List of Holders as of a date no more than 14 days before such List of 
Holders is given to the Property Trustee.  The Property Trustee shall 
preserve, in as current a form as is reasonably practicable, all information 
contained in 

                                       9
<PAGE>

Lists of Holders given to it or which it receives in its capacity as Paying 
Agent (if acting in such capacity); PROVIDED THAT the Property Trustee may 
destroy any List of Holders previously given to it on receipt of a new List 
of Holders.

          (b)  The Property Trustee shall comply with its obligations under
Sections  311(a), 312(b) and 312(b) of the Trust Indenture Act.

          SECTION 2.3.  REPORTS BY THE PROPERTY TRUSTEE.  Within 60 days 
after May 15 of each year, the Property Trustee shall provide to the Holders 
of the Capital Securities such reports as are required by Section 313 of the 
Trust Indenture Act, if any, in the form and in the manner provided by 
Section 313 of the Trust Indenture Act.  The Property Trustee shall also 
comply with the requirements of Section 313(d) of the Trust Indenture Act.

          SECTION 2.4.  PERIODIC REPORTS TO PROPERTY TRUSTEE.  Each of the 
Sponsor and the Regular Trustees on behalf of the Trust shall provide to the 
Property Trustee such documents, reports and information as required by 
Section 314 of the Trust Indenture Act (if any) and the compliance 
certificate required by Section 314 of the Trust Indenture Act in the form, 
in the manner and at the times required by Section 314 of the Trust Indenture 
Act.

          SECTION 2.5.  EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.  
Each of the Sponsor and the Regular Trustees on behalf of the Trust shall 
provide to the Property Trustee such evidence of compliance with any 
conditions precedent, if any, provided for in this Declaration that relate to 
any of the matters set forth in Section 314(c) of the Trust Indenture Act. 
Any certificate or opinion required to be given by an officer pursuant to 
Section 314(c)(1) may be given in the form of an Officers' Certificate.

          SECTION 2.6.  EVENTS OF DEFAULT; WAIVER.  (a)  The Holders of a 
Majority in liquidation amount of Capital Securities may, by vote, on behalf 
of the Holders of all of the Capital Securities, waive any past Event of 
Default in respect of the Capital Securities and its consequences; PROVIDED 
THAT, if the underlying Event of Default under the Indenture:

          (i)  is not waivable under the Indenture, the Event of Default 
      under the Declaration shall also not be waivable; or

          (ii) requires the consent or vote of greater than a majority in
     principal amount of the holders of the Debentures (a "Super Majority") to
     be waived under the Indenture, the Event of Default under the Declaration
     may only be waived by the vote of the Holders of at least the proportion in
     liquidation amount of the 

                                       10
<PAGE>

     Capital Securities that the relevant Super Majority represents of the 
     aggregate principal amount of the Debentures outstanding.

Upon such waiver, any such default shall cease to exist, and any Event of 
Default with respect to the Capital Securities arising therefrom shall be 
deemed to have been cured, for every purpose of this Declaration, but no such 
waiver shall extend to any subsequent or other default or an Event of Default 
with respect to the Capital Securities or impair any right consequent 
thereon.  Any waiver by the Holders of the Capital Securities of an Event of 
Default with respect to the Capital Securities shall also be deemed to 
constitute a waiver by the Holders of the Common Securities of any such Event 
of Default with respect to the Common Securities for all purpose of this 
Declaration without any further act, vote, or consent of the Holders of the 
Securities.

          (b)  The Holders of a Majority in liquidation amount of the Common 
Securities may, by vote, on behalf of the Holders of all of the Common 
Securities, waive any past Event of Default with respect to the Common 
Securities and its consequences; PROVIDED THAT, if the underlying Event of 
Default under the Indenture:

          (i)  is not waivable under the Indenture, except where the Holders of
     the Common Securities are deemed to have waived such Event of Default under
     the Declaration as provided below in this Section 2.6(b), the Event of
     Default under the Declaration shall also not be waivable; or

          (ii) requires the consent or vote of a Super Majority to be waived,
     except where the Holders of the Common Securities are deemed to have waived
     such Event of Default under the Declaration as provided below in this
     Section 2.6(b), the Event of Default under the Declaration may only be
     waived by the vote of the Holders of at least the proportion in liquidation
     preference of the Common Securities that the relevant Super Majority
     represents of the aggregate principal amount of the Debentures outstanding;

PROVIDED, FURTHER, that each Holder of Common Securities will be deemed to 
have waived any such Event of Default and all Events of Default with respect 
to the Common Securities and its consequences until the effects of all Events 
of Default with respect to the Capital Securities have been cured, waived or 
otherwise eliminated, and until such Events of Default have been so cured, 
waived or otherwise eliminated, the Property Trustee will be deemed to be 
acting solely on behalf of the Holders of the Capital Securities and only the 
Holders of the Capital Securities will have the right to direct the Property 
Trustee in accordance with the terms of the Securities, this Declaration and 
the Indenture. Subject to the foregoing provisions of this Section 2.6(b), 
upon such waiver,

                                       11
<PAGE>

any such default shall cease to exist and any Event of Default with respect 
to the Common Securities arising therefrom shall be deemed to have been cured 
for every purpose of this Declaration, but no such waiver shall extend to any 
subsequent or other default or Event of Default with respect to the Common 
Securities or impair any right consequent thereon.

          (c)  A waiver of an Event of Default under the Indenture by the
Property Trustee at the direction of the Holders of the Capital Securities,
constitutes a waiver of the corresponding Event of Default under this
Declaration.  The foregoing provisions of this Section 2.6(c) shall be in lieu
of Section 316(a)(1)(B) of the Trust Indenture Act and such Section 316(a)(1)(B)
of the Trust Indenture Act is hereby expressly excluded from this Declaration
and the Securities.

          SECTION 2.7.  EVENT OF DEFAULT; NOTICE.  (a)  The Property Trustee 
shall, within 90 days after the occurrence of an Event of Default, transmit 
by certified mail, return receipt requested, or by overnight courier, to the 
Holders of the Securities, notices of all defaults with respect to the 
Securities actually known to the Property Trustee, unless such defaults have 
been cured before the giving of such notice (the term "defaults" for the 
purposes of this Section 2.7(a) being hereby defined to be an Event of 
Default as defined in the Indenture not including any periods of grace 
provided for therein and irrespective of the giving of any notice provided 
therein); PROVIDED THAT, except for a default in the payment of principal of 
(or premium, if any) or interest on any of the Debentures, the Property 
Trustee shall be protected in withholding such notice if and so long as the 
board of directors, the executive committee, or a trust committee of 
directors and/or Responsible Officers of the Property Trustee in good faith 
determines that the withholding of such notice is in the interests of the 
Holders of the Securities.

          (b)  The Property Trustee shall not be deemed to have knowledge of 
any default unless a Responsible Officer has actual knowledge of or has 
received written notice of such default.

                                       12
<PAGE>


                                  ARTICLE III

                                  ORGANIZATION

          SECTION 3.1.  NAME.  The Trust is named Zenith National Insurance 
Capital Trust I, as such name may be modified from time to time by the 
Regular Trustees following written notice to the Holders of Securities.  The 
Trust's activities may be conducted under the name of the Trust or any other 
name deemed advisable by the Regular Trustees.

          SECTION 3.2.  OFFICE.  The address of the principal office of the 
Trust is c/o Zenith National Insurance Corp., 21255 Califa Street, Woodland 
Hills, California 91367 Attention:  Chief Financial Officer.  On ten Business 
Days written notice to the Holders of Securities, the Regular Trustees may 
designate another principal office.

          SECTION 3.3.  PURPOSE.  The exclusive purposes and functions of the 
Trust are (a) to issue and sell Securities and use the proceeds from such 
sale to acquire the Debentures, (b) make Distributions to the Holders of the 
Capital Securities and Common Securities and (c) except as otherwise limited 
herein, to engage in only those other activities necessary or incidental 
thereto.  The Trust shall not borrow money, issue debt or reinvest profits 
derived from investments, pledge any of its assets, or otherwise undertake 
(or permit to be undertaken) any activity that would cause the Trust not to 
be classified for United States federal income tax purposes as a grantor 
trust.

          The Trust will be classified as a grantor trust for United States 
federal income tax purposes under Subpart E of Subchapter J of the Code, 
pursuant to which the owners of the Capital Securities and the Common 
Securities will be the owners of the Trust for United States federal income 
tax purposes, and such owners will include directly in their gross income the 
income, gain, deduction or loss of the Trust as if the Trust did not exist.  
The Trustees, the Sponsor and the Capital Security Beneficial Owners of the 
Capital Securities and Common Securities (by their acceptance of such 
Securities) agree not to take any position for United States federal income 
tax purposes which is contrary to the classification of the Trust as a 
grantor trust.

          SECTION 3.4.  AUTHORITY. Subject to the limitations provided in 
this Declaration and to the specific duties of the Property Trustee, the 
Regular Trustees shall have exclusive and complete authority to carry out the 
purposes of the Trust.  An action taken by the Regular Trustees in accordance 
with their powers shall constitute the act of and serve to bind the Trust and 
an action taken by the Property Trustee in accordance with its powers shall 
constitute the act of and serve to bind the Trust.  In dealing with the 

                                       13
<PAGE>

Trustees acting on behalf of the Trust, no person shall be required to 
inquire into the authority of the Trustees to bind the Trust.  Persons 
dealing with the Trust are entitled to rely conclusively on the power and 
authority of the Trustees as set forth in this Declaration.

          SECTION 3.5.  TITLE TO PROPERTY OF THE TRUST.  Except as provided 
in Section 3.8 with respect to the Debentures and the Property Account or as 
otherwise provided in this Declaration, legal title to all assets of the 
Trust shall be vested in the Trust.  The Holders shall not have legal title 
to any part of the assets of the Trust, but shall have an undivided 
beneficial interest in the assets of the Trust.

          SECTION 3.6.  POWERS AND DUTIES OF THE REGULAR TRUSTEES.  The 
Regular Trustees shall have the exclusive power, duty and authority to cause 
the Trust to engage in the following activities:

          (a)  to issue and sell the Capital Securities and Common Securities 
in accordance with this Declaration; PROVIDED, HOWEVER, that the Trust may 
issue no more than one series of Capital Securities and no more than one 
series of Common Securities; and PROVIDED, FURTHER, that there shall be no 
interests in the Trust other than the Securities, and the issuance of 
Securities shall be limited to the one-time simultaneous issuance of both 
Capital Securities and Common Securities on the Closing Date;

          (b)  in connection with the issue and sale of the Capital 
Securities, at the direction of the Sponsor, to:

          (i)    execute, if necessary, a confidential offering circular (the
     "Offering Circular") in preliminary and final form, and any supplements
     thereto, prepared by the Sponsor, in relation to the offering and sale of
     Capital Securities to QIBs in reliance on Rule 144A under the Securities
     Act and to Institutional Accredited Investors);

          (ii)   execute and file any documents prepared by the Sponsor, or take
     any acts determined by the Sponsor to be necessary in order to qualify or
     register all or part of the Capital Securities in any state or foreign
     jurisdiction in which the Sponsor has determined to qualify or register
     such Capital Securities for sale;

          (iii)  to execute and deliver letters, documents, or instruments
     with the Depositary relating to the Capital Securities; and

                                       14
<PAGE>

          (iv) execute and enter into agreements related to the Purchase
     Agreement providing for the sale of the Capital Securities and consummate
     the transactions contemplated thereby;

          (c)  to acquire the Debentures with the proceeds of the sale of the
Capital Securities and the Common Securities; PROVIDED, HOWEVER, that the
Regular Trustees shall cause title to the Debentures to be held of record in the
name of the Property Trustee for the benefit of the Holders of the Capital
Securities and the Holders of the Common Securities;

          (d)  to give the Sponsor and the Property Trustee prompt written
notice of the occurrence of a Special Event;

          (e)  to establish a record date with respect to all actions to be
taken hereunder that require a record date be established, including and with
respect to, for the purposes of Section  316(c) of the Trust Indenture Act,
Distributions, voting rights, redemptions and exchanges, and to issue relevant
notices to the Holders of Capital Securities and Holders of Common Securities as
to such actions and applicable record dates;

          (f)  to take all action, and perform such duties as may be required of
the Regular Trustees pursuant to the terms of the Securities (set forth in Annex
I hereto and made a part hereof);

          (g)  to bring or defend, pay, collect, compromise, arbitrate, resort
to legal action, or otherwise adjust claims or demands of or against the Trust
("Legal Action"), unless pursuant to Section 3.8(e), the Property Trustee has
the exclusive power to bring such Legal Action;

          (h)  to employ or otherwise engage employees and agents (as may be
designated as officers with titles) and managers, contractors, advisors and
consultants, and pay reasonable compensation for such services;

          (i)  to cause the Trust to comply with the Trust's obligations under
this Declaration;

          (j)  to give the certificate required by Section 314(a)(4) of the
Trust Indenture Act to the Property Trustee, which certificate may be executed
by any Regular Trustee;

                                       15
<PAGE>

          (k)  to incur expenses that are necessary or incidental to carry out
any of the purposes of the Trust;

          (l)  to act as, or appoint another Person to act as, Registrar and
transfer agent for the Securities;

          (m)  to give prompt written notice to the Holders of the Securities of
any notice received from the Sponsor of its election to defer payments of
interest on the Debentures by deferring the interest payments under the
Indenture;

          (n)  to execute all documents or instruments, perform all duties and
powers, and do all things for and on behalf of the Trust in all matters
necessary or incidental to the foregoing;

          (o)  to take all action that may be necessary or appropriate for the
preservation and the confirmation of the Trust's valid existence, rights,
franchises and privileges as a statutory business trust under the laws of the
State of Delaware and of each other jurisdiction in which such existence is
necessary to protect the limited liability of the Holders of the Capital
Securities or to enable the Trust to effect the purposes for which the Trust was
created;

          (p)  to take any action, not inconsistent with this Declaration or
with applicable law, that the Regular Trustees determine in their discretion to
be necessary or desirable in carrying out the activities of the Trust as set out
in this Section 3.6, including, but not limited to:

          (i)   causing the Trust not to be deemed to be an Investment Company
     required to be registered under the Investment Company Act;

          (ii)  causing the Trust to be classified for United States federal
     income tax purposes as a grantor trust; and

          (iii) cooperating with the Debenture Issuer to ensure that the
     Debentures will be treated as indebtedness of the Debenture Issuer for
     United States federal income tax purposes;

PROVIDED THAT such action does not adversely affect the interests of Holders;
and

          (q)  to take all action necessary to cause all applicable tax returns
and tax information reports that are required to be filed with respect to the
Trust, or delivered 

                                       16
<PAGE>

to the Holders of the Securities, as the case may be, to be duly prepared, 
filed or delivered by the Regular Trustees, as the case may be, on behalf of 
the Trust.

          The Regular Trustees shall exercise the powers set forth in this
Section 3.6 in a manner that is consistent with the purposes and functions of
the Trust set out in Section 3.3, and the Regular Trustees shall not take any
action that is inconsistent with the purposes and functions of the Trust set
forth in Section 3.3.

          Subject to this Section 3.6, the Regular Trustees shall have none of
the powers or the authority of the Property Trustee set forth in Section 3.8.

          SECTION 3.7.  PROHIBITION OF ACTIONS BY THE TRUST AND THE TRUSTEES. 
(a)  The Trust shall not, and the Trustees (including the Property Trustee) 
shall not, engage in any activity other than as required or authorized by 
this Declaration.  In particular, the Trust shall not and the Trustees 
(including the Property Trustee) shall not cause the Trust to:

          (i)   invest any proceeds received by the Trust from holding the
     Debentures, but shall distribute all such proceeds to Holders of Securities
     pursuant to the terms of this Declaration and of the Securities;

          (ii)  acquire any assets other than as expressly provided herein;

          (iii) possess Trust property for other than a Trust purpose;

          (iv)  make any loans or incur any indebtedness other than loans
     represented by the Debentures;

          (v)   possess any power or otherwise act in such a way as to vary the
     Trust assets or the terms of the Securities in any way whatsoever;

          (vi)  issue any securities or other evidences of beneficial ownership
     of, or beneficial interest in, the Trust other than the Securities; or

          (vii) other than as provided in this Declaration or Annex I hereto, 
     (A) direct the time, method and place of exercising any trust or power 
     conferred upon the Indenture Trustee with respect to the Debentures, (B) 
     waive any past default that is not waivable under Section 5.13 of the 
     Indenture, (C) exercise any right to rescind or annul any declaration 
     that the principal of all the Debentures shall be due and payable, or (D) 
     consent to any amendment, modification or termination 

                                       17
<PAGE>

     of the Indenture or the Debentures where such consent shall be required 
     unless the Trust shall have received an opinion of a nationally 
     recognized independent tax counsel experienced in such matters to the 
     effect that such modification will not cause more than an insubstantial 
     risk that for United States federal income tax purposes the Trust will be 
     classified as other than a grantor trust.

          SECTION 3.8.  POWERS AND DUTIES OF THE PROPERTY TRUSTEE.  (a)  
The legal title to the Debentures shall be owned by and held of record in 
the name of the Property Trustee in trust for the benefit of the Holders 
of the Securities.  The right, title and interest of the Property Trustee 
to the Debentures shall vest automatically in each Person who may 
hereafter be appointed as Property Trustee in accordance with Section 
5.6.  Such vesting and cessation of title shall be effective whether or 
not conveyancing documents with regard to the Debentures have been 
executed and delivered.

          (b)  The Property Trustee shall not transfer its right, title and
interest in the Debentures to the Regular Trustees or to the Delaware Trustee
(if the Property Trustee does not also act as Delaware Trustee).

          (c)  The Property Trustee shall:

          (i)   establish and maintain a segregated non-interest bearing trust
     account (the "Property Account") in the name of and under the exclusive
     control of the Property Trustee on behalf of the Holders of the Securities
     and, upon the receipt of payments of funds made in respect of the
     Debentures held by the Property Trustee, deposit such funds into the
     Property Account and make payments to the Holders of the Capital Securities
     and Holders of the Common Securities from the Property Account in
     accordance with Section 6.1.  Funds in the Property Account shall be held
     uninvested until disbursed in accordance with this Declaration.

          (ii)  engage in such ministerial activities as so directed and as 
     shall be necessary or appropriate to effect the redemption of the Capital
     Securities and the Common Securities to the extent the Debentures are
     redeemed or mature; and

          (iii) upon written notice of distribution issued by the Regular
     Trustees in accordance with the terms of the Securities, engage in such
     ministerial activities as so directed as shall be necessary or appropriate
     to effect the distribution of the Debentures to Holders of Securities
     pursuant to the terms of the Securities.

                                       18
<PAGE>

          (d)  The Property Trustee shall take all actions and perform such
duties as may be specifically required of the Property Trustee pursuant to the
terms of the Securities (set forth in Annex I hereto and made a part hereof).

          (e)  The Property Trustee shall take any Legal Action which arises out
of or in connection with an Event of Default or the Property Trustee's duties
and obligations under this Declaration.

          (f)  The Property Trustee shall not resign as a Trustee unless either:

          (i)   the Trust has been completely liquidated and the proceeds of the
     liquidation distributed to the Holders of Securities pursuant to the terms
     of the Securities; or

          (ii)  a Successor Property Trustee has been appointed and has accepted
     that appointment in accordance with Section 5.6.

          (g)  The Property Trustee shall have the legal power to exercise all
of the rights, powers and privileges of a holder of Debentures under the
Indenture and, if an Event of Default occurs and is continuing, the Property
Trustee shall, for the benefit of Holders of the Securities, enforce its rights
as holder of the Debentures subject to the rights of the Holders pursuant to the
terms of such Securities.

          (h)  The Property Trustee will act as Paying Agent and Registrar to
pay Distributions, redemption payments or liquidation payments on behalf of the
Trust with respect to all Securities and any such Paying Agent and Registrar
shall comply with Section 317(b) of the Trust Indenture Act.  Any Paying Agent
or Registrar may be removed by the Property Trustee at any time and a successor
Paying Agent or Registrar or additional Paying Agents or Registrars may be
appointed at any time by the Property Trustee.

          (i)  Subject to this Section 3.8, the Property Trustee shall have none
of the duties, liabilities, powers or the authority of the Regular Trustees set
forth in Section 3.6.

          The Property Trustee must exercise the powers set forth in this 
Section 3.8 in a manner that is consistent with the purpose and functions of 
the Trust set out in Section 3.3, and the Property Trustee shall not take any 
action that is inconsistent with the purposes and functions of the Trust set 
out in Section 3.3.

                                       19
<PAGE>

          SECTION 3.9.  CERTAIN DUTIES AND RESPONSIBILITIES OF THE PROPERTY 
TRUSTEE. (a)  The Property Trustee, before the occurrence of any Event of 
Default and after the curing of all Events of Default that any have occurred, 
shall undertake to perform only such duties as are specifically set forth in 
this Declaration and no implied covenants shall be read into this Declaration 
against the Property Trustee.  In case an Event of Default has occurred (that 
has not been cured or waived pursuant to Section 2.6), the Property Trustee 
shall exercise such of the rights and powers vested in it by this 
Declaration, and use the same degree of care and skill in their exercise, as 
a prudent person would exercise or use under the circumstances in the conduct 
of his or her own affairs.

          (b)  No provision of this Declaration shall be construed to relieve
the Property Trustee from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that:

          (i)    prior to the occurrence of an Event of Default and after the
     curing or waiving of all such Events of Default that may have occurred:

               (A)  the duties and obligations of the Property Trustee shall be
          determined solely by the express provisions of this Declaration and
          the Property Trustee shall not be liable except for the performance of
          such duties and obligations as are specifically set forth in this
          Declaration, and no implied covenants or obligations shall be read
          into this Declaration against the Property Trustee; and

               (B)  in the absence of bad faith on the part of the Property
          Trustee, the Property Trustee may conclusively rely, as to the truth
          of the statements and the correctness of the opinions expressed
          therein, upon any certificates or opinions furnished to the Property
          Trustee and conforming to the requirements of this Declaration;
          provided that in the case of any such certificates or opinions that by
          any provision hereof are specifically required to be furnished to the
          Property Trustee, the Property Trustee shall be under a duty to
          examine the same to determine whether or not they conform to the
          requirements of this Declaration;

          (ii)   the Property Trustee shall not be liable for any error of
     judgment made in good faith by a Responsible Officer of the Property
     Trustee, unless it shall be proved that the Property Trustee was negligent
     in ascertaining the pertinent facts;

                                       20
<PAGE>

          (iii)  the Property Trustee shall not be liable with respect to any
     action taken or omitted to be taken by it in good faith in accordance with
     the direction of the Holders of not less than a Majority in liquidation
     amount of the Securities or a Super Majority, as applicable, relating to
     the time, method and place of conducting any proceeding for any remedy
     available to the Property Trustee, or exercising any power conferred upon
     the Property Trustee under this Declaration;

          (iv)      no provision of this Declaration shall require the Property
     Trustee to expend or risk its own funds or otherwise incur personal
     financial liability in the performance of any of its duties or in the
     exercise of any of its rights or powers, if it shall have reasonable
     grounds for believing that the repayment of such funds or liability is not
     reasonably assured to it under the terms of this Declaration or adequate
     indemnity against such risk or liability is not reasonably assured to it;

          (v)       the Property Trustee's sole duty with respect to the 
     custody, safe keeping and physical preservation of the Debentures and the 
     Property Account shall be to deal with such property in a similar manner as
     the Property Trustee deals with similar property for its own account, 
     subject to the protections and limitations on liability afforded to the 
     Property Trustee under this Declaration and the Trust Indenture Act;

          (vi)      the Property Trustee shall have no duty or liability for or 
     with respect to the value, genuineness, existence or sufficiency of the
     Debentures or the payment of any taxes or assessments levied thereon or in
     connection therewith;

          (vii)     the Property Trustee shall not be liable for any interest on
     any money received by it except as it may otherwise agree with the Sponsor.
     Money held by the Property Trustee need not be segregated from other funds
     held by it except in relation to the Property Account maintained by the
     Property Trustee pursuant to Section 3.6(c)(i) and except to the extent
     otherwise required by law; and

          (viii)    the Property Trustee shall not be responsible for monitoring
     the compliance by the Delaware Trustee, the Regular Trustees or the Sponsor
     with their respective duties under this Declaration, nor shall the Property
     Trustee be liable for the default or misconduct of the Delaware Trustee,
     the Regular Trustees or the Sponsor.

                                       21
<PAGE>

          SECTION 3.10.  CERTAIN RIGHTS OF PROPERTY TRUSTEE. (a)  Subject to 
the provisions of Section 3.9:

          (i)    the Property Trustee may rely and shall be fully protected in
     acting or refraining from acting upon any resolution, certificate,
     statement, instrument, opinion, report, notice, request, direction,
     consent, order, bond, debenture, note, other evidence of indebtedness or
     other paper or document believed by it to be genuine and to have been
     signed, sent or presented by the proper party or parties;

          (ii)   any direction or act of the Sponsor or the Regular Trustees
     contemplated by this Declaration shall be sufficiently evidenced by an
     Officers' Certificate;

          (iii)  whenever in the administration of this Declaration, the
     Property Trustee shall deem it desirable that a matter be proved or
     established before taking, suffering or omitting any action hereunder, the
     Property Trustee (unless other evidence is herein specifically prescribed)
     may, in the absence of bad faith on its part, request and rely upon an
     Officers' Certificate which, upon receipt of such request, shall be
     promptly delivered by the Sponsor or the Regular Trustees;

          (iv)   the Property Trustee shall have no duty to see to any 
     recording, filing or registration of any instrument (including any 
     financing or continuation statement or any filing under tax or securities 
     laws) or any rerecording, refiling or registration thereof;

          (v)    the Property Trustee may consult with counsel of its choice or
     other experts and the advice or opinion of such counsel and experts with
     respect to legal matters or advice within the scope of such experts' area
     of expertise shall be full and complete authorization and protection in
     respect of any action taken, suffered or omitted by it hereunder in good
     faith and in accordance with such advice or opinion.  Such counsel may be
     counsel to the Sponsor or any of its Affiliates, and such counsel may be an
     employee of the Sponsor or its Affiliates.  The Property Trustee shall have
     the right at any time to seek instructions concerning the administration of
     this Declaration from any court of competent jurisdiction;

          (vi)   the Property Trustee shall be under no obligation to exercise 
     any of the rights or powers vested in it by this Declaration at the request
     or direction of any Holder, unless such Holder shall have provided to the
     Property Trustee adequate security and indemnity, which would satisfy a
     reasonable person in the 

                                       22
<PAGE>

     position of the Property Trustee, against the costs, expenses (including 
     its reasonable attorneys' fees and expenses) and liabilities that might 
     be incurred by it in complying with such request or direction, including 
     such reasonable advances as may be requested in writing by the Property 
     Trustee; provided that nothing contained in this Section 3.10(a)(vi) 
     shall be taken to relieve the Property Trustee, upon the occurrence of an 
     Event of Default, of its obligation to exercise the rights and powers 
     vested in it by this Declaration;

          (vii)  the Property Trustee shall not be bound to make any
     investigation into the facts or matters stated in any resolution,
     certificate, statement, instrument, opinion, report, notice, request,
     direction, consent, order, security, bond, debenture, note, other evidence
     of indebtedness or other paper or document, but the Property Trustee, in
     its discretion, may make such further inquiry or investigation into such
     facts or matters as it may see fit;

          (viii) the Property Trustee may execute any of the trusts or powers
     hereunder or perform any duties hereunder either directly or by or through
     agents or attorneys and the Property Trustee shall not be responsible for
     any misconduct or negligence on the part of any agent or attorney appointed
     with due care by it hereunder;

          (ix)   any action taken by the Property Trustee or its agents 
     hereunder shall bind the Trust and the Holders of the Securities, and the 
     signature of the Property Trustee or its agents alone shall be sufficient 
     and effective to perform any such action and no third party shall be 
     required to inquire as to the authority of the Property Trustee to so act 
     or as to its compliance with any of the terms and provisions of this 
     Declaration, both of which shall be conclusively evidenced by the Property 
     Trustee or its agent taking such action;

          (x)    whenever in the administration of this Declaration the Property
     Trustee shall deem it desirable to receive instructions with respect to
     enforcing any remedy or right or taking any other action hereunder, the
     Property Trustee (i) may request instructions from the Holders of the
     Securities which instructions may only be given by the Holders of the same
     proportion in liquidation amount of the Securities as would be entitled to
     direct the Property Trustee under the terms of the Securities in respect of
     such remedy, right or action, (ii) may refrain from enforcing such remedy,
     right or taking such other action until such instructions are received, and
     (iii) shall be protected in acting in accordance with such instructions;

                                       23
<PAGE>

          (xi)   except as otherwise expressly provided by this Declaration, the
     Property Trustee shall not be under any obligation to take any action that
     is discretionary under the provisions of this Declaration; and

          (xii)  the Property Trustee shall not be liable for any action
     taken, suffered, or omitted to be taken by it in good faith and reasonably
     believed by it to be authorized or within the discretion or rights or
     powers conferred upon it by this Declaration.

          (b)  No provision of this Declaration shall be deemed to impose any
duty or obligation on the Property Trustee to perform any act or acts or
exercise any right, power, duty or obligation conferred or imposed on it, in any
jurisdiction in which it shall be illegal, or in which the Property Trustee
shall be unqualified or incompetent in accordance with applicable law, to
perform any such act or acts, or to exercise any right, power, duty or
obligation.  No permissive power or authority available to the Property Trustee
shall be construed to be a duty.

          SECTION 3.11.  DELAWARE TRUSTEE.  (a)  Notwithstanding any other 
provision of this Declaration other than Section 5.2 and except as provided 
below in this Section 3.11, the Delaware Trustee shall not be entitled to 
exercise any powers, nor shall the Delaware Trustee have any of the duties 
and responsibilities of the Regular Trustees or the Property Trustee 
described in this Declaration.  Except as set forth in Section 5.2, the 
Delaware Trustee shall be a Trustee for the sole and limited purpose of 
fulfilling the requirements of Section 3807 of the Business Trust Act and is 
entitled only to such powers as are necessary to fulfill such requirements, 
including the power to sign the Certificate of Trust.

          (b)  The Delaware Trustee shall not be responsible for monitoring the
compliance by the Property Trustee, the Regular Trustees or the Sponsor with
their respective duties under this Declaration, nor shall the Delaware Trustee
be liable for any default or misconduct of the Property Trustee, the Regular
Trustees, or the Sponsor.

          SECTION 3.12.  EXECUTION OF DOCUMENTS.  Unless otherwise determined 
by the Regular Trustees, and except as otherwise required by the Business 
Trust Act, any Regular Trustee is authorized to execute on behalf of the 
Trust any documents that the Regular Trustees have the power and authority to 
execute pursuant to Section 3.6.

          SECTION 3.13.  NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF 
SECURITIES.  The recitals contained in this Declaration and the Securities 
shall be taken as the statements of the Sponsor, and the Trustees do not 
assume any responsibility for their

                                       24
<PAGE>

correctness.  The Trustees make no representations as to the value or condition
of the property of the Trust or any part thereof.  The Trustees make no
representations as to the validity or sufficiency of this Declaration or the
Securities.

          SECTION 3.14.  DURATION OF TRUST.  The Trust, unless terminated 
pursuant to the provisions of Article VIII hereof, shall exist until June 30, 
2038.

          SECTION 3.15.  MERGERS.  (a)  The Trust may not consolidate, 
amalgamate, merge with or into, or be replaced by, or convey, transfer or 
lease its properties and assets substantially as an entirety to any 
corporation or other entity or person, except as described in Section 3.15(b) 
and (c).

          (b)  The Trust may, with the consent of a majority of the Regular
Trustees and without the consent of the Holders of Securities or the Delaware
Trustee or the Property Trustee, consolidate, amalgamate, merge with or into or
be replaced by a trust organized as such under the laws of any state or the
District of Columbia; PROVIDED THAT:

          (i)    if the Trust is not the surviving entity, the entity (the
     "Successor Entity") either:

               (A)  expressly assumes all of the obligations of the Trust under
          the Securities; or

               (B)  substitutes for the Securities other securities having
          substantially the same terms as the Capital Securities or the Common
          Securities, as the case may be (the "Successor Securities"), as long
          as the Successor Securities rank, with respect to participation in the
          profits and distributions or in the assets of the Successor Entity at
          least as high as the Capital Securities or the Common Securities, as
          the case may be, rank with respect to participation in the profits and
          dividends or in the assets of the Trust;

          (ii)   the Debenture Issuer expressly acknowledges such Successor 
     Entity as the Holder of the Debentures;

          (iii)  the Capital Securities or any Successor Securities are
     listed, or any Successor Securities will be listed upon notification of
     issuance, on any national securities exchange or with any other
     organization on which the Capital Securities (including any Successor
     Securities) are then listed or quoted;

                                       25
<PAGE>

          (iv)   such merger, consolidation, amalgamation or replacement does 
     not cause the Capital Securities (including any Successor Securities) to be
     downgraded by any nationally recognized statistical rating organization;

          (v)    such merger, consolidation, amalgamation or replacement does 
     not adversely affect the powers, preferences and other special rights of 
     the Holders of the Capital Securities (including any Successor Securities) 
     in any material respect;

          (vi)   such Successor Entity has a purpose substantially identical to
     that of the Trust;

          (vii)  prior to such merger, consolidation, amalgamation or
     replacement, the Sponsor has received an opinion of a nationally recognized
     independent counsel (reasonably acceptable to the Property Trustee) to the
     Trust experienced in such matters to the effect that:

               (A)  the Successor Entity will be treated as a grantor trust for
          United States federal income tax purposes;

               (B)  following such merger, consolidation, amalgamation or
          replacement, neither the Sponsor nor the Successor Entity will be
          required to register as an Investment Company; and

               (C)  such merger, consolidation, amalgamation or replacement will
          not adversely affect the rights, preferences and privileges of the
          Holders of the Securities (including any Successor Securities) in any
          material respect; and

          (viii) the Sponsor provides a guarantee to the Holders of the
     Successor Securities with respect to the Successor Entity having
     substantially the same terms as the Capital Securities Guarantee.

          (c)  Notwithstanding Section 3.15(b), the Trust shall not, except with
the consent of Holders of 100% in liquidation amount of the Common Securities,
merge with or into, consolidate, amalgamate, or be replaced by any other entity
or permit any other entity to merge with or into, consolidate, amalgamate, or
replace it, if such merger,  consolidation, amalgamation or replacement would
cause the Trust or Successor Entity to be classified as other than a grantor
trust for United States federal income tax purposes.

                                       26
<PAGE>

                                     ARTICLE IV

                                       SPONSOR

          SECTION 4.1.  SPONSOR'S PURCHASE OF COMMON SECURITIES.  On the 
Closing Date the Sponsor will purchase an amount of Common Securities issued 
by the Trust such that the aggregate liquidation amount of such Common 
Securities purchased by the Sponsor shall at such date equal at least 3% of 
the total capital of the Trust.

          SECTION 4.2.  RESPONSIBILITIES OF THE SPONSOR.  In connection with the
issuance and sale of the Capital Securities, the Sponsor shall have the
exclusive right and responsibility to engage in the following activities:

          (a)  to prepare the Offering Circular including any amendments or
supplements thereto;

          (b)  to determine the states and foreign jurisdictions in which to
take appropriate action to qualify or register for sale all or part of the
Capital Securities and to do any and all such acts, other than actions which
must be taken by the Trust, and advise the Trust of actions it must take, and
prepare for execution and filing any documents to be executed and filed by the
Trust, as the Sponsor deems necessary or advisable in order to comply with the
applicable law of any such states and foreign jurisdictions; and

          (c)  to negotiate the terms of and to execute and deliver a Purchase
Agreement and other related agreements providing for the sale of the Capital
Securities.


                                   ARTICLE V

                                   TRUSTEES

          SECTION 5.1.  NUMBER OF TRUSTEES.  The number of Trustees shall 
initially be four (4), and:

          (a)  at any time before the issuance of any Securities, the Sponsor
may, by written instrument, increase or decrease the number of Trustees; and

          (b)  after the issuance of any Securities, the number of Trustees may
be increased or decreased by vote of the Holders of a Majority in liquidation
amount of the 

                                       27
<PAGE>

Common Securities voting as a class at a meeting of the Holders of the Common 
Securities;

PROVIDED THAT, if the Property Trustee does not also act as Delaware Trustee,
the number of Trustees shall be at least four (4).

          SECTION 5.2.  DELAWARE TRUSTEE.  As required by the Business Trust 
Act, one Trustee (the "Delaware Trustee") shall be a natural person who is a 
resident of the State of Delaware or an entity which has its principal place 
of business in the State of Delaware, and otherwise meets the requirements of 
Section 3807 of the Business Trust Act; PROVIDED THAT, if the Property 
Trustee has its principal place of business in the State of Delaware and 
otherwise meets the requirements of Section 3807 of the Business Trust Act, 
then the Property Trustee shall also be the Delaware Trustee and Section 3.11 
shall have no application.

          SECTION 5.3.  PROPERTY TRUSTEE; ELIGIBILITY.  (a)  There shall at 
all times be one Trustee which shall act as Property Trustee which shall:

          (i)  not be an Affiliate of the Sponsor; and

          (ii) be a corporation organized and doing business under the laws of
     the United States of America or any state or territory thereof or of the
     District of Columbia, or a corporation or Person permitted by the
     Commission to act as an institutional trustee under the Trust Indenture
     Act, authorized under such laws to exercise corporate trust powers, having
     a combined capital and surplus of at least 50 Million U.S.  Dollars
     ($50,000,000), and subject to supervision or examination by federal, state,
     territorial or District of Columbia authority.  If such corporation
     publishes reports of conditions at least annually, pursuant to law or to
     the requirements of the supervising or examining authority referred to
     above, then, for the purposes of this Section 5.3(a)(ii), the combined
     capital and surplus of such corporation shall be deemed to be its combined
     capital and surplus as set forth in its most recent report of conditions so
     published.

          (b)  If at any time the Property Trustee shall cease to be eligible to
so act under Section 5.3(a), the Property Trustee shall immediately resign in
the manner and with the effect as set forth in Section 5.6(c).

          (c)  If the Property Trustee has or shall acquire any "conflicting
interests" within the meaning of Section 310(b) of the Trust Indenture Act, the
Property Trustee and the Holder of the Common Securities (as if it were the
obliger referred to in Section 310(b) 

                                       28
<PAGE>

of the Trust Indenture Act) shall in all respects comply with the provisions 
of Section 320(b) of the Trust Indenture Act.

          (d)  The Capital Securities Guarantee shall be deemed to be
specifically described in this Declaration for purposes of clause (i) of the
first provision contained in Section 310(b) of the Trust Indenture Act.

          SECTION 5.4.  QUALIFICATIONS OF REGULAR TRUSTEES.  Each Regular 
Trustee shall be either a natural person who is at least 21 years of age or a 
legal entity that shall act through one or more Authorized Officers.

          SECTION 5.5.  INITIAL TRUSTEES.  The initial Regular Trustees shall 
be:

               Stanley R. Zax
               c/o Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California  91367-5021

               Fredricka Taubitz
               c/o Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California  91367-5021

          The initial Delaware Trustee shall be:

               WILMINGTON TRUST COMPANY
               1100 North Market Street
               Wilmington, Delaware 19890-0001
               Attention:     Corporate Trust Administration,
                              Zenith National Insurance Capital Trust I

          The initial Property Trustee shall be:

               NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION
               Sixth & Marquette
               Minneapolis, Minnesota 55479-0069
               Attention:     Corporate Trust Administration,
                              Zenith National Insurance Capital Trust I

                                       29
<PAGE>

          SECTION 5.6.  APPOINTMENT, REMOVAL AND RESIGNATION OF TRUSTEES.  
(a)  Subject to Section 5.6(b), Trustees may be appointed or removed without 
cause at any time:

          (i)  until the issuance of any Securities, by written instrument
     executed by the Sponsor; and

          (ii) after the issuance of any Securities, by vote of the Holders of a
     Majority in liquidation amount of the Common Securities voting as a class
     at a meeting of the Holders of the Common Securities; PROVIDED, HOWEVER,
     that if an Event of Default shall have occurred and be continuing, the
     Property Trustee and Delaware Trustee may be removed only by the vote of
     Holders of a Majority in liquidation amount of the Capital Securities
     voting as a class at a meeting of Holders of Capital Securities.

          (b)  The Trustee that acts as Property Trustee shall not be removed in
accordance with Section 5.6(a) until a successor Property Trustee (the
"Successor Property Trustee") has been appointed and has accepted such
appointment by written instrument executed by such Successor Property Trustee
and delivered to the Regular Trustees and the Sponsor.

          (c)  The Trustee that acts as Delaware Trustee shall not be removed in
accordance with Section 5.6(a) until a successor Trustee possessing the
qualifications to act as Delaware Trustee under Sections 5.2 and 5.4 (a
"Successor Delaware Trustee") has been appointed and has accepted such
appointment by written instrument executed by such Successor Delaware Trustee
and delivered to the Regular Trustees, the Sponsor and to the Delaware Trustee
being removed.

          (d)  A Trustee appointed to office shall hold office until his
successor shall have been appointed or until his death (or dissolution or
liquidation or other similar event in the case of a Trustee who is other than a
natural person), removal or resignation.  Any Trustee may resign from office
(without need for prior or subsequent accounting) by an instrument in writing
signed by the Trustee and delivered to the Sponsor and the Trust, which
resignation shall take effect upon such delivery or upon such later date as is
specified therein; PROVIDED, HOWEVER, that:

                                       30
<PAGE>

          (i)  No such resignation of the Trustee that acts as the Property
     Trustee shall be effective:

               (A)  until a Successor Property Trustee has been appointed and
          has accepted such appointment by instrument executed by such Successor
          Property Trustee and delivered to the Trust, the Sponsor and the
          resigning Property Trustee; or

               (B)  until the assets of the Trust have been completely
          liquidated and the proceeds thereof distributed to the Holders of the
          Securities; and

          (ii) No such resignation of the Trustee that acts as the Delaware
     Trustee shall be effective until a Successor Delaware Trustee has been
     appointed and has accepted such appointment by instrument executed by such
     Successor Delaware Trustee and delivered to the Trust, the Sponsor and the
     resigning Delaware Trustee.

          (e)  The Holders of the Common Securities shall use their best efforts
to promptly appoint a Successor Property Trustee or Successor Delaware Trustee,
as the case may be, if the Property Trustee or the Delaware Trustee delivers an
instrument of resignation in accordance with this Section 5.6.

          (f)  If no Successor Property Trustee or Successor Delaware Trustee
shall have been appointed and accepted appointment as provided in this Section
5.6 within 60 days after delivery to the Sponsor and the Trust of an instrument
of resignation or removal, the Property Trustee or Delaware Trustee resigning or
being removed, as applicable, may petition any court of competent jurisdiction
for appointment of a Successor Property Trustee or Successor Delaware Trustee. 
Such court may thereupon, after prescribing such notice, if any, as it may deem
proper and prescribe, appoint a Successor Property Trustee or Successor Delaware
Trustee, as the case may be.

          (g)  No Property Trustee or Delaware Trustee shall be liable for the
acts or omissions to act of any Successor Property Trustee or Successor Delaware
Trustee, as the case may be.  No Successor Property Trustee or Successor
Delaware Trustee shall be liable for the acts or omissions of a predecessor
Property Trustee or Delaware Trustee, as the case may be.

          SECTION 5.7.  VACANCIES AMONG TRUSTEES.  If a Trustee ceases to hold 
office for any reason and the number of Trustees is not reduced pursuant to 
Section 5.1, 

                                       31
<PAGE>

or if the number of Trustees is increased pursuant to Section 5.1, a vacancy 
shall occur.  A resolution certifying the existence of such vacancy by a 
majority of the Regular Trustees (or, so long as there are only two Regular 
Trustees, by both of the Regular Trustees) shall be conclusive evidence of 
the existence of such vacancy.  The vacancy shall be filled with a Trustee 
appointed in accordance with Section 5.6.

          SECTION 5.8.  EFFECT OF VACANCIES.  The death, resignation, 
retirement, removal, bankruptcy, dissolution, liquidation, incompetence or 
incapacity to perform the duties of a Trustee shall not operate to annul the 
Trust.  Whenever a vacancy in the number of Regular Trustees shall occur, 
until such vacancy in filled by the appointment of a Regular Trustee in 
accordance with Section 5.6, the Regular Trustees in office, regardless of 
their number, shall have all the powers granted to the Regular Trustees and 
shall discharge all the duties imposed upon the Regular Trustees by this 
Declaration.

          SECTION 5.9.  MEETINGS.  Meetings of the Regular Trustees shall be 
held from time to time upon the call of any Regular Trustee.  Regular 
meetings of the Regular Trustees may be held at a time and place fixed by 
resolution of the Regular Trustees.  Notice of any in-person meetings of the 
Regular Trustees shall be hand delivered or otherwise delivered in writing 
(including by facsimile, with a hard copy by overnight courier) not less than 
48 hours before such meeting.  Notice of any telephonic meetings of the 
Regular Trustees or any committee thereof shall be hand delivered or 
otherwise delivered in writing (including by facsimile, with a hard copy by 
overnight courier) not less than 24 hours before a meeting.  Notices shall 
contain a brief statement of the time, place and anticipated purposes of the 
meeting.  The presence (whether in person or by telephone) of a Regular 
Trustee at a meeting shall constitute a waiver of notice of such meeting 
except where a Regular Trustee attends a meeting for the express purpose of 
objecting to the transaction of any activity on the ground that the meeting 
has not been lawfully called or convened.  Unless provided otherwise in this 
Declaration, any action of the Regular Trustees may be taken at a meeting by 
vote of a majority of the Regular Trustees present or, so long as there are 
only two Regular Trustees, by both of the Regular Trustees (whether in person 
or by telephone) and eligible to vote with respect to such matter, provided 
that a Quorum is present, or without a meeting by the unanimous written 
consent of the Regular Trustees.

          SECTION 5.10.  DELEGATION OF POWER.  (a)  Any Regular Trustee may, 
by power of attorney consistent with applicable law, delegate to any other 
natural person over the age of 21 his or her power for the purpose of 
executing any documents contemplated in Section 3.6, including any 
registration statement or amendment thereto filed with the Commission, or 
making any other governmental filing; and

                                       32
<PAGE>

          (b)  the Regular Trustees shall have power to delegate from time to
time to such of their number or to officers of the Trust the doing of such
things and the execution of such instruments either in the name of the Trust or
the names of the Regular Trustees or otherwise as the Regular Trustees may deem
expedient, to the extent such delegation is not prohibited by applicable law or
contrary to the provisions of the Trust, as set forth herein.

          SECTION 5.11.  MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO 
BUSINESS.  Any corporation into which the Property Trustee or the Delaware 
Trustee, as the case may be, may be merged or converted or with which either 
may be consolidated, or any corporation resulting from any merger, conversion 
or consolidation to which the Property Trustee or the Delaware Trustee, as 
the case may be, shall be a party, or any corporation succeeding to all or 
substantially all the corporate trust business of the Property Trustee or the 
Delaware Trustee, as the case may be, shall be the successor of the Property 
Trustee or the Delaware Trustee, as the case may be, hereunder provided such 
corporation shall be otherwise qualified and eligible under this Article, 
without the execution or filing of any paper or any further act on the part 
of any of the parties hereto.

                                     ARTICLE VI

                                    DISTRIBUTIONS

          SECTION 6.1.  DISTRIBUTIONS.  Holders shall receive Distributions 
(as defined below) in accordance with the applicable terms of the relevant 
Holder's Securities (set forth in Annex I and Exhibits A, B, C and D hereto 
and incorporated herein by reference).  Distributions shall be made on the 
Capital Securities and the Common Securities in accordance with the 
preferences set forth in their respective terms.  If and to the extent that 
the Debenture Issuer makes a payment of interest (including Compounded 
Interest (as defined in the Indenture) and Additional Interest (as defined in 
the Indenture)), premium and principal on the Debentures held by the Property 
Trustee (the amount of any such payment being a "Payment Amount"), the 
Property Trustee shall and is directed, to the extent funds are available 
legally for that purpose, to make a distribution (a "Distribution") of the 
Payment Amount to Holders.

                                       33
<PAGE>


                                    ARTICLE VII

                              ISSUANCE OF SECURITIES

          SECTION 7.1.  GENERAL PROVISIONS REGARDING SECURITIES.  (a)  The 
Regular Trustees shall on behalf of the Trust issue one class of preferred 
securities, representing undivided beneficial interests in the assets of the 
Trust (the "Capital Securities"), having such terms (the "Terms") as are set 
forth in Annex I, and one class of common securities, representing undivided 
beneficial interests in the assets of the Trust (the "Common Securities"), 
having such terms as are set forth in Annex I.  The Trust shall issue no 
securities or interests in the assets of the Trust other than the Capital 
Securities and the Common Securities.  The Trust shall issue no Securities in 
bearer form.

          (b)  The consideration received by the Trust for the issuance of the
Securities shall constitute a contribution to the capital of the Trust and shall
not constitute a loan to the Trust.

          (c)  Upon issuance of the Securities as provided in this Declaration,
the Securities so issued shall be deemed to be validly issued, fully paid and
non-assessable, subject to Section 10.1 with respect to the Common Securities.

          (d)  Every Person, by virtue of having become a Holder or a Capital
Security Beneficial Owner in accordance with the terms of this Declaration,
shall be deemed to have expressly assented and agreed to the terms of, and shall
be bound by, this Declaration.

          SECTION 7.2.  EXECUTION AND AUTHENTICATION.  (a)  The Securities shall
be signed on behalf of the Trust by one Regular Trustee.  In case any Regular 
Trustee of the Trust who shall have signed any of the Securities shall cease 
to be such Regular Trustee before the Securities so signed shall be delivered 
by the Trust, such Securities nevertheless may be delivered as though the 
person who signed such Securities had not ceased to be such Regular Trustee; 
and any Securities may be signed on behalf of the Trust by such persons who, 
at the actual date of execution of such Security, shall be the Regular 
Trustees of the Trust, although at the date of the execution and delivery of 
the Declaration any such person was not such a Regular Trustee.

          (b)  One Regular Trustee shall sign the Capital Securities for the
Trust by manual or facsimile signature.  Unless otherwise determined by the
Trust, such signature shall, in the case of Common Securities, be a manual
signature.

                                       34
<PAGE>


          A Capital Security shall not be valid until authenticated by the
manual signature of an authorized officer of the Property Trustee.  The
signature shall be conclusive evidence that the Capital Security has been
authenticated under this Declaration.

          Upon a written order of the Trust signed by one Regular Trustee, the
Property Trustee shall authenticate the Capital Securities for original
issuance.  The aggregate number of Capital Securities outstanding at any time
shall not exceed the number set forth in the Terms in Annex I hereto except as
provided in Section 7.6.

          The Property Trustee may appoint an authenticating agent acceptable to
the Trust to authenticate Capital Securities.  An authenticating agent may
authenticate Capital Securities whenever the Property Trustee may do so.  Each
reference in this Declaration to authentication by the Property Trustee includes
authentication by such agent.  An authenticating agent has the same rights as
the Property Trustee to deal with the Company or an Affiliate.

          SECTION 7.3.  BOOK-ENTRY CAPITAL SECURITIES CERTIFICATES; 
DEFINITIVE CAPITAL SECURITIES CERTIFICATES; COMMON SECURITIES CERTIFICATE.  
The Capital Securities and the Property Trustee's certificate of 
authentication shall be substantially in the forms of Exhibits A, B and C, as 
applicable, and the Common Securities shall be substantially in the form of 
Exhibit D, each of which is hereby incorporated in and expressly made a part 
of this Declaration.  Certificates representing the Securities may be 
printed, lithographed or engraved or may be produced in any other manner as 
is reasonably acceptable to the Regular Trustees, as evidenced by their 
execution thereof. The Securities may have letters, CUSIP or other numbers, 
notations, or other marks of identification or designation and such legends 
or endorsements required by law, stock exchange rule, agreements to which the 
Trust is subject, if any, or usage (provided that any such notation, legend 
or endorsement is in a form acceptable to the Trust).  The Trust at the 
direction of the Sponsor shall furnish any such legend not contained in the 
forms thereof attached as Exhibits A, B, C and D to the Property Trustee in 
writing.  Each Capital Security shall be dated the date of its 
authentication.  The terms and provisions of the Securities set forth in 
Annex I and the forms of Securities set forth in Exhibits A, B, C and D are 
part of the terms of this Declaration and to the extent applicable, the 
Property Trustee and the Sponsor, by their execution and delivery of this 
Declaration, expressly agree to such terms and provisions and to be bound 
thereby.

          (a)  Capital Securities offered and sold in reliance on Rule 144A
shall be issued initially in the form of one or more permanent global Capital
Securities, substantially in the form of Exhibit A hereto ("Rule 144A Capital
Securities"), deposited 

                                       35
<PAGE>

with the Depositary or the Property Trustee as custodian for the Depositary.  
Transfers of beneficial interests in Rule 144A Capital Securities will be 
subject to the restrictions on transfer contained in the Restricted 
Securities Legend set forth in Exhibit A hereto.  Transfers of beneficial 
interests in Rule 144A Capital Securities will be made in accordance with the 
standing instructions and procedures of the Depositary.

          (b)  Capital Securities offered and sold in offshore transactions 
in reliance on Regulation S shall be issued initially in the form of one or 
more permanent global Capital Securities, substantially in the form of 
Exhibit B hereto ("Regulation S Capital Securities" and, together with the 
Rule 144A Capital Securities, the "Global Capital Securities"), deposited 
with the Depositary or the Property Trustee as custodian for the Depositary.  
Prior to the expiration of the Restricted Period, interests in Regulation S 
Capital Securities may only be held by Depositary Participants in the name of 
a nominee of Euroclear and Cedel and transfers of beneficial interests will 
be subject to the restrictions on transfer contained in the Restricted 
Securities Legend set forth in Exhibit B hereto.  After the expiration of the 
Restricted Period, transfers of beneficial interests in Regulation S Capital 
Securities will not be subject to any restrictions other than the 
restrictions contained in Section 9.2(l).  After the expiration of the 
Restricted Period, beneficial interests in Regulation S Capital Securities 
may be held by Depositary Participants other than in the name of a nominee of 
Euroclear and Cedel.  Transfers of beneficial interests in Regulation S 
Capital Securities will be made in accordance with the standing instructions 
and procedures of the Depositary and, prior to the expiration of the 
Restricted Period, Euroclear and Cedel.

          (c)  Capital Securities offered and sold to Institutional 
Accredited Investors in reliance on Regulation D under the Securities Act 
shall be issued initially in the form of one or more Definitive Capital 
Securities, substantially in the form of Exhibit C hereto, upon receipt by 
the Property Trustee of a written letter in the form of Exhibit E (and/or 
such other certificates, legal opinions or other information as the Sponsor 
may reasonably request to confirm that such transfer is exempt from the 
registration of the Securities Act).  Transfers of Definitive Capital 
Securities will be subject to the restrictions on transfer contained in the 
Restricted Securities Legend set forth in Exhibit C hereto and the 
requirements contained in Section 9.2(d) ("Restricted Definitive Capital 
Securities").

          (d)  If (i) the Sponsor advises the Regular Trustees in writing 
that the Depositary is no longer willing or able to properly discharge its 
responsibilities with respect to the Capital Securities Certificates, and the 
Sponsor is unable to locate a qualified successor, (ii) the Sponsor at its 
option advises the Regular Trustees in writing that it elects to terminate 
the book-entry system through the Depositary or (iii) after the 

                                       36
<PAGE>

occurrence of an Event of Default, Capital Security Beneficial Owners 
representing beneficial interests aggregating at least a Majority in 
liquidation amount of the Securities advise the Depositary in writing that 
the continuation of a book-entry system through the Depositary is no longer 
in the best interest of the Capital Security Beneficial Owners, then the 
Depositary shall notify all Capital Security Beneficial Owners and the 
Regular Trustees of the occurrence of any such event and of the availability 
of the Definitive Capital Securities Certificates to Capital Security 
Beneficial Owners requesting the same.  If the Depositary elects to 
discontinue its services as securities depositary with respect to the Capital 
Securities, the Regular Trustees may, in their sole discretion, appoint a 
successor Depositary with respect to such Capital Securities.  Upon surrender 
to the Regular Trustees of the Global Capital Security or Certificates by the 
Depositary, accompanied by registration instructions, the Regular Trustees, 
or any one of them, shall execute the Definitive Capital Securities 
Certificates in accordance with the instructions of the Depositary.  Neither 
the Registrar nor the Trustees shall be liable for any delay in delivery of 
such instructions and may conclusively rely on, and shall be protected in 
relying on, such instructions.  Upon the issuance of Definitive Capital 
Securities Certificates, the Trustees shall recognize the Holders of the 
Definitive Capital Securities Certificates as Holders.  The Definitive 
Capital Securities Certificates shall be printed, lithographed or engraved or 
may be produced in any other manner as is reasonably acceptable to the 
Regular Trustees, as evidenced by the execution thereof by the Regular 
Trustees or any one of them.

          (e)  The Restricted Securities Legend shall be removed upon the 
request of any Holder after the expiration of (i) with respect to Capital 
Securities initially resold in reliance on Regulation S, the Restricted 
Period or (ii) with respect to Capital Securities initially resold to 
Institutional Accredited Investors or QIBs, the holding period applicable to 
sales of the Capital Securities under Rule 144(k) under the Securities Act 
or, in any case, such earlier time as a transfer of such Capital Securities 
is made pursuant to an effective registration statement under the Securities 
Act.

          (f)  Members of, or Participants in, the Depositary shall have no 
rights under this Declaration with respect to any Global Capital Security 
held on their behalf by the Depositary or by the Property Trustee as the 
custodian of the Depositary or under such Global Capital Security, and the 
Depositary may be treated by the Trust, the Property Trustee, the Regular 
Trustees and the Delaware Trustee and any agent of the Trust, the Property 
Trustee, the Regular Trustees and the Delaware Trustee as the absolute owner 
of such Global Capital Security for all purposes whatsoever.  Notwithstanding 
the foregoing, nothing herein shall prevent the Trust, the Property Trustee 
or any agent of the Trust or the Property Trustee from giving effect to any 
written certification, proxy or other authorization furnished by the 
Depositary or impair, 

                                       37
<PAGE>

as between the Depositary and its Participants, the operation of customary 
practices of such Depositary governing the exercise of the rights of a 
Capital Security Beneficial Owner in any Global Capital Security.

          (g)  So long as is required for an offer or sale of the Capital 
Securities to qualify for an exemption under Rule 144A under the Securities 
Act, the Sponsor shall, upon request, provide the information required by 
clause (d)(4) thereunder to each Holder and to each Capital Security 
Beneficial Owner and prospective purchaser of Capital Securities identified 
by any holder of Restricted Capital Securities, unless such information is 
furnished to the Commission pursuant to Section 13 or 15(d) of the Exchange 
Act.

          SECTION 7.4.  REGISTRAR AND PAYING AGENT.  The Trust shall 
maintain, either directly or through an agent, in the Borough of Manhattan, 
the City of New York (i) an office or agency where Capital Securities may be 
presented for registration of transfer or for exchange ("Registrar"), and 
(ii) an office or agency where Capital Securities may be presented for 
payment ("Paying Agent"). The Registrar shall keep a register of the Capital 
Securities and of their transfer and exchange.  The Trust may appoint the 
Registrar and the Paying Agent and may appoint one or more co-registrars and 
one or more additional paying agents in such other locations as it shall 
determine.  The term "Paying Agent" includes any additional paying agent.  
The Trust may change any Paying Agent, Registrar or co-registrar without 
prior notice to any Holder.  The Trust shall notify the Property Trustee of 
the name and address of any Agent not a party to this Declaration.  If the 
Trust fails to appoint or maintain another entity as Registrar or Paying 
Agent, the Property Trustee shall act as such.  The Trust or any of its 
Affiliates may act as Paying Agent or Registrar.  The Trust shall act as 
Paying Agent, Registrar and co-registrar for the Common Securities.

          The Trust initially appoints the Property Trustee as Registrar and 
Paying Agent for the Capital Securities.

          SECTION 7.5.  PAYING AGENT TO HOLD MONEY IN TRUST. The Trust shall 
require each Paying Agent other than the Property Trustee to agree in writing 
that the Paying Agent will hold in trust for the benefit of Holders or the 
Property Trustee all money held by the Paying Agent for the payment of the 
liquidation amount or Distributions on Securities, and will notify the 
Property Trustee if there are insufficient funds.  While any such 
insufficiency continues, the Property Trustee may require a Paying Agent to 
pay all money held by it to the Property Trustee.  The Trust at any time may 
require a Paying Agent to pay all money held by it to the Property Trustee 
and to account for any money disbursed by it.  Upon payment over to the 
Property Trustee, the


                                       38
<PAGE>

Paying Agent (if other than the Trust or an Affiliate of the Trust) shall 
have no further liability for the money.  If the Trust or the Sponsor or an 
Affiliate of the Trust or the Sponsor acts as Paying Agent, it shall 
segregate and hold in a separate trust fund for the benefit of the Holders 
all money held by it as Paying Agent.

          SECTION 7.6.  REPLACEMENT SECURITIES.  If the Holder of a Security 
claims that the Security has been mutilated, lost, destroyed or wrongfully 
taken or if such Security is mutilated and is surrendered to the Trust or in 
the case of the Capital Securities to the Property Trustee, the Trust shall 
issue and the Property Trustee shall authenticate a replacement Security if 
the Property Trustee's and the Trust's reasonable requirements, as the case 
may be, are met. If required by the Property Trustee or the Trust, such 
Holder shall provide an indemnity bond sufficient in the judgment of the 
Property Trustee and the Trust to protect the Trustees, the Property Trustee, 
the Sponsor or any authenticating agent from any loss which any of them may 
suffer if a Security is replaced.  The Trust may charge such Holder for its 
expenses in replacing a Security.

          In case any such mutilated, destroyed, lost or stolen Security has 
become or is about to become due and payable, the Sponsor in its discretion 
may, instead of issuing a new Security, pay such Security.

          SECTION 7.7.  OUTSTANDING CAPITAL SECURITIES.  The Capital 
Securities outstanding at any time are all the Capital Securities 
authenticated by the Property Trustee except for those canceled by it, those 
delivered to it for cancellation, and those described in this Section as not 
outstanding.

          If a Capital Security is replaced, paid or purchased pursuant to 
Section 7.6 hereof, it ceases to be outstanding unless the Property Trustee 
receives proof satisfactory to it that the replaced, paid or purchased 
Capital Security is held by a bona fide purchaser.

          If Capital Securities are considered paid in accordance with the 
terms of this Declaration, they cease to be outstanding and interest on them 
ceases to accrue.

          A Capital Security does not cease to be outstanding because one of 
the Trust, the Sponsor or an Affiliate of the Sponsor holds the Security.

          SECTION 7.8.  CAPITAL SECURITIES IN TREASURY.  In determining 
whether the Holders of the required amount of Securities have concurred in 
any direction, waiver or consent, Capital Securities owned by the Trust, the 
Sponsor or an Affiliate of the Sponsor, as the case may be, shall be 
disregarded and deemed not to be outstanding,

                                       39
<PAGE>

except that for the purposes of determining whether the Property Trustee 
shall be fully protected in relying on any such direction, waiver or consent, 
only Securities which the Property Trustee knows are so owned shall be so 
disregarded.

          SECTION 7.9.  TEMPORARY CERTIFICATES.  (a)  Until definitive 
Certificates are ready for delivery, the Trust may prepare and, in the case 
of the Capital Securities, the Property Trustee shall authenticate temporary 
Certificates. Temporary Certificate shall be substantially in the form of 
definitive Certificates but may have variations that the Trust considers 
appropriate for temporary Certificates.  Without unreasonable delay, the 
Trust shall prepare and, in the case of the Capital Securities, the Property 
Trustee shall authenticate definitive Certificates in exchange for temporary 
Certificates.

          (b)  A Global Capital Security deposited with the Depositary or 
with the Property Trustee as custodian for the Depositary pursuant to Section 
7.3 shall be transferred to the beneficial owners thereof in the form of 
certificated Capital Securities only if such transfer complies with Section 
9.2 and (i) the Depositary notifies the Sponsor that it is unwilling or 
unable to continue as Depositary for such Global Capital Security or if at 
any time such Depositary ceases to be a "clearing agency" registered under 
the Exchange Act and a successor depositary is not appointed by the Sponsor 
within 90 days of such notice, (ii) an Event of Default has occurred and is 
continuing, or (iii) any of the events set forth in Section 7.3(d) occurs and 
is continuing.

          (c)  Any Global Capital Security that is transferable to the 
beneficial owners thereof in the form of certificated Capital Securities 
pursuant to this Section 7.9 shall be surrendered by the Depositary to the 
Property Trustee to be so transferred, in whole or from time to time in part, 
without charge, and the Property Trustee shall authenticate and deliver, upon 
such transfer of each portion of such Global Capital Security, an equal 
aggregate liquidation amount of Securities of authorized denominations in the 
form of certificated Securities.  Any portion of a Global Capital Security 
transferred pursuant to this Section shall be registered in such names as the 
Depositary shall direct.

          Any Capital Security in the form of certificated Capital Securities 
delivered in exchange for an interest in the Restricted Capital Security 
shall, except as otherwise provided by Section 7.3 and 9.1, bear the 
Restricted Securities Legend set forth in Exhibit C hereto.

          (d)  Subject to the provisions of Sections 7.9(c) and 12.2(b)(ii), 
the registered holder of a Global Capital Security may grant proxies and 
otherwise authorize any person, including Participants and persons that may 
hold interests through

                                       40
<PAGE>

Participants, to take any action which a holder is entitled to take under 
this Declaration or the Securities.

          (e)  In the event of the occurrence of any of the events specified 
in Section 7.9(b), the Trust will promptly make available to the Property 
Trustee a reasonable supply of certificated Securities in definitive, fully 
registered form without interest coupons.

          SECTION 7.10.  CANCELLATION.  The Trust at any time may deliver 
Capital Securities to the Property Trustee for cancellation.  The Registrar 
and Paying Agent shall forward to the Property Trustee any Capital Securities 
surrendered to them for registration of transfer, redemption, exchange or 
payment.  The Property Trustee shall promptly cancel all Capital Securities, 
surrendered for registration of transfer, redemption, payment, replacement or 
cancellation and shall dispose of canceled Capital Securities as the Trust 
directs.  The Trust may not issue new Capital Securities to replace Capital 
Securities that it has paid or that have been delivered to the Property 
Trustee for cancellation.

          SECTION 7.11.  CUSIP NUMBERS.  The Trust in issuing the Capital 
Securities may use "CUSIP" numbers (if then generally in use), and, if so, 
the Property Trustee shall use "CUSIP" numbers in notices of redemption as a 
convenience to Holders of Capital Securities; PROVIDED that any such notice 
may state that no representation is made as to the correctness of such 
numbers either as printed on the Capital Securities or as contained in any 
notice of a redemption and that reliance may be placed only on the 
identification numbers printed on the Capital Securities, and any such 
redemption shall not be affected by any defect in or omission of such 
numbers.  The Sponsor will promptly notify the Property Trustee of any change 
in the "CUSIP" numbers.

                                    ARTICLE VIII

                                TERMINATION OF TRUST

          SECTION 8.1.  TERMINATION OF TRUST.

          (a)  The Trust shall terminate upon the earliest to occur of the 
following:

          (i)    the bankruptcy of the Holder of the Common Securities or the
     Sponsor;


                                       41
<PAGE>

          (ii)   the filing of a certificate of dissolution or its equivalent 
     with respect to the Holder of the Common Securities or the Sponsor; 
     the filing of a certificate of cancellation with respect to the Trust or 
     the revocation of the charter of the Holder of the Common Securities or 
     the Sponsor and the expiration of 90 days after the date of revocation 
     without a reinstatement thereof;

          (iii)  the entry of a decree of judicial dissolution of the Holder 
     of the Common Securities or the Sponsor;

          (iv)   the distribution, upon the terms and subject to the 
     conditions set forth in Annex I, of an aggregate principal amount of 
     Debentures with an aggregate principal amount equal to the aggregate 
     liquidation amount of, with an interest rate identical to the 
     Distribution rate of, and accrued and unpaid interest equal to accrued 
     and unpaid Distributions on, the Securities; PROVIDED, HOWEVER, that 
     such distribution is conditioned on the receipt of an opinion of 
     independent tax counsel experienced in such matters to the effect that 
     the Holders of the Securities will not recognize any gain or loss for 
     United States federal income tax purposes as a result of the dissolution 
     of the Trust and such distribution of Debentures;

          (v)    the redemption of the Securities upon the final maturity of 
     the Debentures (or earlier redemption of all outstanding Debentures) and 
     the amounts necessary for redemption thereof having been paid to the 
     Holders in accordance with the terms of the Securities;

          (vi)   the expiration of the term of the Trust as provided in 
     Section 3.14; and

          (vii)  the entry of an order for the dissolution of the Trust by a 
     court of competent jurisdiction.

          (b)  In addition to the termination events set forth in Section 
8.1(a), the Trust may be voluntarily terminated by the Sponsor at any time, 
upon payment of the amount of cash, or distribution of the Debentures, as set 
forth in Annex I.

          (c)  As soon as is practicable after the occurrence of an event 
referred to in Section 8.1(a), (1) the Regular Trustees and/or the Property 
Trustee, as liquidator of the Trust, shall comply with the provisions in 
Section 3808(e) of the Business Trust Act, and (2) the Regular Trustees shall 
file a certificate of cancellation with the Secretary of State of the State 
of Delaware.

                                       42
<PAGE>

          (d)  The provisions of Section 3.9 and Article X shall survive the 
termination of the Trust.

                                     ARTICLE IX

                               TRANSFER OF INTERESTS

          SECTION 9.1.  TRANSFER OF SECURITIES.  (a)  Securities may only be 
transferred, in whole or in part, in accordance with the terms and conditions 
set forth in this Declaration and in the terms of the Securities.  Any 
transfer or purported transfer of any Security not made in accordance with 
this Declaration shall be null and void.

          (b)  Subject to this Article IX, Capital Securities may only be 
transferred, in whole or in part, in accordance with the terms and conditions 
set forth in this Declaration.  To the fullest extent permitted by law, any 
transfer or purported transfer of any security not made in accordance with 
this Declaration shall be null and void.

          (c)  The Sponsor may not transfer the Common Securities; provided, 
however, that any permitted successor of the Sponsor under the Indenture may 
succeed to the Sponsor's ownership of the Common Securities.

          (d)  The Registrar shall provide for the registration of Securities 
and of the transfer of Securities, which will be effected without charge, but 
only upon payment (with such indemnity as the Registrar may require) in 
respect of any tax or other governmental charges that may be imposed in 
relation to it. Upon surrender for registration of transfer of any 
Securities, the Registrar shall cause one or more new Securities to be issued 
in the name of the designated transferee or transferees.  Every Security 
surrendered for registration of transfer shall be accompanied by a written 
instrument of transfer in form satisfactory to the Registrar duly executed by 
the Holder or such Holder's attorney, duly authorized in writing.  Each 
Security surrendered for registration of transfer shall be canceled by the 
Property Trustee.  A transferee of a Security shall be entitled to the rights 
and subject to the obligations of a Holder hereunder upon the receipt by such 
transferee of a Security.  By acceptance of a Security, each transferee shall 
be deemed to have agreed to be bound by this Declaration.

          SECTION 9.2.  TRANSFER PROCEDURES AND RESTRICTIONS. (a) Except as 
provided in Section 7.3(c), so long as the Capital Securities are eligible 
for book-entry settlement in the Depositary or unless otherwise required by 
law, all Capital Securities 

                                       43
<PAGE>

that are so eligible will be represented by one or more Global Capital 
Securities Certificates deposited with the Depositary or the Property Trustee 
as custodian for the Depositary, by, or on behalf of, the Trust.  No Capital 
Security Beneficial Owner of a Certificate evidencing a Global Capital 
Security will receive a Certificate evidencing a Definitive Capital Security 
representing such Capital Security Beneficial Owner's interest in the Capital 
Securities, except as provided in Section 7.9(b)(ii) above and Section 9.2(f) 
below; provided, however, that, with respect to any Capital Security in 
global form, the Sponsor shall request and the Trust shall issue a Definitive 
Capital Securities Certificate upon any transfer of a beneficial interest in 
such Capital Security to the Company or an Affiliate of the Company and no 
Definitive Capital Securities Certificate, or portion thereof, in respect of 
which the Company or an Affiliate of the Company held any beneficial interest 
shall be resold, retransferred or included in any Global Capital Security 
until such Capital Security is freely tradeable in accordance with Rule 
144(k) or pursuant to an effective registration statement under the 
Securities Act.

          (b)  Rule 144A Capital Securities shall initially be registered in 
the name of a nominee of the Depositary and Regulation S Capital Securities 
shall initially be registered in the name of a nominee of the Depositary for 
the direct or indirect accounts of Euroclear and Cedel.

          (c)  Transfers of interests in Capital Securities between any Rule 
144A Capital Security and any Regulation S Capital Security will be made in 
accordance with this Declaration (including Section 9.2 (d) (iii) and (iv) , 
as applicable) and in accordance with the standing instructions and 
procedures of the Depositary.  The Property Trustee shall make appropriate 
endorsements to reflect increases or decreases in the amount of such Global 
Capital Securities.

          (d)  With respect to all or part of the Capital Securities, unless 
and until the first day on which such Capital Securities (other than Capital 
Securities acquired by the Trust or the Sponsor or any Affiliates thereof) 
may be sold pursuant to Rule 144(k):

          (i)    DEFINITIVE TO DEFINITIVE TRANSFERS.  Any transfer of a 
     Definitive Capital Security shall be registered on the securities 
     register only upon receipt by the Property Trustee of the Certificate 
     evidencing such Definitive Capital Security accompanied by a duly 
     completed and executed assignment in the form attached to Exhibit C and, 
     in the case of a transfer to an Institutional Accredited Investor, upon 
     receipt by the Property Trustee of a written certificate in the form of 
     Exhibit E (and/or such other certificates, legal opinions or other 
     information as 

                                       44
<PAGE>

     the Sponsor may reasonably request to confirm that such transfer is 
     exempt from registration under the Securities Act);

          (ii)   DEFINITIVE INTO A GLOBAL CAPITAL SECURITY.  So long as 
     Capital Securities are eligible for book-entry settlement with the 
     Depositary or unless otherwise required by law, upon any transfer of 
     such Definitive Capital Securities to a QIB in accordance with Rule 144A 
     or to a non-U.S. Person in accordance with Regulation S, and upon 
     receipt of the Certificate evidencing such Definitive Capital Securities 
     being so transferred accompanied by (i) a duly completed and executed 
     assignment in the form attached to Exhibit C and (ii) (x) in the case of 
     a transferee taking delivery in the form of a beneficial interest in a 
     Rule 144A Capital Security, a written certificate in the form of Exhibit 
     F or (y) in the case of a transferee taking delivery in the form of a 
     beneficial interest in a Regulation S Capital Security, a written 
     certificate in the form of Exhibit G, the Property Trustee on behalf of 
     the Trust shall make an endorsement on any Rule 144A Capital Security or 
     any Regulation S Capital Security, as the case may be, to reflect an 
     increase in such Global Capital Security and the Property Trustee, on 
     behalf of the Trust, shall cancel such Definitive Capital Securities 
     Certificate.

          (iii)  RULE 144A CAPITAL SECURITY INTO REGULATION S CAPITAL 
     SECURITY.  Any transfer in accordance with Rule 903 or 904 of Regulation 
     S of a beneficial interest in a Rule 144A Capital Security shall be 
     reflected by an increase in the Regulation S Capital Security and a 
     corresponding decrease in the Rule 144A Capital Security only upon 
     receipt by the Property Trustee of a written certificate in the form of 
     Exhibit G (or such other certifications, legal opinions or other 
     information as the Sponsor may reasonably require to confirm that such 
     transfer is being made pursuant to Rule 903 or 904); and

          (iv)   REGULATION S CAPITAL SECURITY INTO RULE 144A CAPITAL 
     SECURITY. Any transfer of a beneficial interest in a Regulation S 
     Capital Security to a transferee that takes delivery in the form of a 
     beneficial interest in the Rule 144A Capital Security shall be reflected 
     by an increase in the Rule 144A Capital Security and a corresponding 
     decrease in the Regulation S Capital Security and, prior to the 
     expiration of the Restricted Period, only upon receipt by the Property 
     Trustee of a written certificate in the form of Exhibit F (or such other 
     certifications, legal opinions or other information as the Sponsor may 
     reasonably require).

          (e)  Any Global Capital Security may be endorsed with or have 
incorporated in the text thereof such legends or recitals or changes not 
inconsistent with 

                                       45
<PAGE>

the provisions of this Declaration as may be required by the Depositary, by 
any national securities exchange or by the National Association of Securities 
Dealers, Inc. in order for the Capital Securities to be tradeable on any 
market developed for trading of securities pursuant to Rule 144A or required 
to comply with any applicable law or any regulation thereunder or with the 
rules and regulations of any securities exchange upon which the Capital 
Securities may be listed or traded (subject to applicable principles of 
federal securities laws) or to conform with any usage with respect thereto, 
or to indicate any special limitations or restrictions to which any 
particular Capital Securities are subject.

          (f)  Notwithstanding any other provisions of this Declaration 
(other than the provisions set forth in this Section 9.2(f)), a Global 
Capital Security may not be exchanged in whole or in part for Definitive 
Capital Securities Certificates, and no transfer of a Global Capital Security 
may be registered, in the name of any Person other than the Depositary or a 
nominee thereof unless (i) such Depositary (A) has notified the Property 
Trustee and the Sponsor that it is unwilling or unable to continue as 
Depositary for such Global Capital Security or (B) has ceased to be a 
clearing agency registered as such under the Exchange Act and no successor 
Depositary has been appointed by the Sponsor within 90 days after its receipt 
of such notice or its becoming aware of such cessation of registration, (ii) 
there shall have occurred and be continuing an Event of Default, or any event 
which after notice or lapse of time or both would be an Event of Default 
under the Declaration, with respect to such Capital Security or (iii) the 
Sponsor in its sole discretion instructs the Property Trustee to exchange 
such Global Capital Security for Definitive Capital Securities Certificates.

          (g)  [intentionally omitted]

          (h)  LEGEND.

          (i)    Except as permitted by the following paragraph (ii), each 
     Capital Security certificate evidencing the Global Capital Securities 
     and the Definitive Capital Securities (and all Capital Securities issued 
     in exchange therefor or substitution thereof) shall bear a legend (the 
     "Restricted Securities Legend") in substantially the following form:

          THIS CAPITAL SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES 
          ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE 
          SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAW.  NEITHER 
          THIS CAPITAL SECURITY NOR ANY INTEREST OR 

                                       46
<PAGE>

          PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED,
          PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH
          REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT
          TO, SUCH REGISTRATION.

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF AGREES 
          TO OFFER, SELL OR OTHERWISE TRANSFER THIS CAPITAL SECURITY ONLY (A) 
          TO THE COMPANY, (B) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS 
          BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) SO LONG AS 
          THIS CAPITAL SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A 
          UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON IT REASONABLY 
          BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER"  (AS DEFINED IN RULE 
          144A) THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A 
          QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE 
          TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) IN AN OFFSHORE 
          TRANSACTION IN ACCORDANCE WITH RULE 903 OR 904 UNDER THE SECURITIES 
          ACT,  (E) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY 
          RULE 144 UNDER THE SECURITIES ACT (IF APPLICABLE) OR (F) PURSUANT 
          TO ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS 
          UNDER THE SECURITIES ACT, SUBJECT TO THE RIGHT OF THE TRUST AND THE 
          COMPANY PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER (i) PURSUANT TO 
          CLAUSE (E) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, 
          CERTIFICATIONS AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF 
          THEM AND (ii) IN EACH OF CASES (B) THROUGH (F) IN ACCORDANCE WITH 
          ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES.  
          SUCH HOLDER FURTHER AGREES THAT IT WILL 

                                       47
<PAGE>

          DELIVER TO EACH PERSON TO WHOM THIS CAPITAL SECURITY IS TRANSFERRED
          A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF ALSO 
          AGREES, REPRESENTS AND WARRANTS THAT EITHER (i) IT IS NOT AN 
          EMPLOYEE BENEFIT PLAN SUBJECT TO THE "PROHIBITED TRANSACTIONS" 
          PROVISIONS OF SECTION 406 OF THE EMPLOYMENT RETIREMENT INCOME 
          SECURITY ACT OF 1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE 
          U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED ("THE CODE") AND IS 
          NOT USING THE ASSETS OF ANY SUCH PLAN TO ACQUIRE THIS CAPITAL 
          SECURITY OR (ii) THE ACQUISITION AND HOLDING OF THIS CAPITAL 
          SECURITY BY IT IS NOT PROHIBITED BY EITHER SECTION 406 OF ERISA OR 
          SECTION 4975 OF THE CODE, OR IS EXEMPT FROM ANY SUCH PROHIBITION BY 
          APPLICATION OF A STATUTORY, REGULATORY OR ADMINISTRATIVE EXEMPTION.

          (ii)   Upon any sale or transfer of a Restricted Capital Security
     (including any Restricted Capital Security represented by a Global Capital
     Security) pursuant to Rule 144 under the Securities Act:

               (A)  in the case of any Restricted Capital Security that is a
          Definitive Capital Security, the Registrar shall permit the Holder
          thereof to exchange such Restricted Capital Security for a Definitive
          Capital Security that does not bear the Restricted Securities Legend
          and rescind any restriction on the transfer of such Restricted Capital
          Security; and

               (B)  in the case of any Restricted Capital Security that is
          represented by a Global Capital Security, the Registrar shall permit
          the Holder of such Global Capital Security to exchange such Global
          Capital Security for another Global Capital Security that does not
          bear the Restricted Securities Legend.

          (i)  CANCELLATION OR ADJUSTMENT OF GLOBAL CAPITAL SECURITY.  At 
such time as all beneficial interests in a Global Capital Security have 
either been exchanged 

                                       48
<PAGE>

for Definitive Capital Securities to the extent permitted by this Declaration 
or redeemed, repurchased or canceled in accordance with the terms of this 
Declaration, such Global Capital Security shall be returned by the Depositary 
to the Property Trustee for cancellation or retained and canceled by the 
Property Trustee.  At any time prior to such cancellation, if any beneficial 
interest in a Global Capital Security is exchanged for Definitive Capital 
Securities, Capital Securities represented by such Global Capital Security 
shall be reduced and an adjustment shall be made on the books and records of 
the Property Trustee (if it is then the Registrar for such Global Capital 
Security) with respect to such Global Capital Security, by the Property 
Trustee or the Registrar, to reflect such reduction.

          (j)  OBLIGATIONS WITH RESPECT TO TRANSFERS AND EXCHANGES OF CAPITAL 
SECURITIES.

          (i)    To permit registrations of transfers and exchanges, a 
     Regular Trustee on behalf of the Trust shall execute and the Property 
     Trustee shall authenticate Definitive Capital Securities and Global 
     Capital Securities at the Registrar's or co-Registrar's request in 
     accordance with the terms of this Declaration.

          (ii)   Registrations of transfers or exchanges will be effected 
     without charge, but only upon payment (with such indemnity as the Trust 
     or the Sponsor may require) in respect of any tax or other governmental 
     charge that may be imposed in relation to it.

          (iii)  The Registrar or co-Registrar shall not be required to 
     register the transfer of or exchange of (a) Capital Securities during a 
     period beginning at the opening of business 15 days before the day of 
     mailing of a notice of redemption or any notice of selection of Capital 
     Securities for redemption and ending at the close of business on the day 
     of such mailing; or (b) any Capital Security so selected for redemption 
     in whole or in part, except the unredeemed portion of any Capital 
     Security being redeemed in part.

          (iv)   Prior to the due presentation for registration of transfer 
     of any Capital Security, the Trust, the Property Trustee, the Paying 
     Agent, the Registrar or any co-Registrar may deem and treat the person 
     in whose name a Capital Security is registered as the absolute owner of 
     such Capital Security for the purpose of receiving Distributions on such 
     Capital Security and for all other purposes whatsoever, and none of the 
     Trust, the Property Trustee, the Paying

                                       49
<PAGE>

     Agent, the Registrar or any co-Registrar shall be affected by notice to 
     the contrary.

          (v)    All Capital Securities issued upon any transfer or exchange 
     pursuant to the terms of this Declaration shall evidence the same 
     security and shall be entitled to the same benefits under this 
     Declaration as the Capital Securities surrendered upon such transfer or 
     exchange. 

          (k)  NO OBLIGATION OF THE PROPERTY TRUSTEE.

          (i)    The Property Trustee shall have no responsibility or 
     obligation to any beneficial owner of a Global Capital Security, a 
     Participant in the Depositary or other Person with respect to the 
     accuracy of the records of the Depositary or its nominee or of any 
     Participant thereof, with respect to any ownership interest in the 
     Capital Securities or with respect to the delivery to any participant, 
     beneficial owner or other Person (other than the Depositary) of any 
     notice (including any notice of redemption) or the payment of any 
     amount, under or with respect to such Capital Securities. All notices 
     and communications to be given to the Holders and all payments to be 
     made to Holders under the Capital Securities shall be given or made only 
     to or upon the order of the registered Holders (which shall be the 
     Depositary or its nominee in the case of a Global Capital Security).  
     The rights of beneficial owners in any Global Capital Security shall be 
     exercised only through the Depositary subject to the applicable rules 
     and procedures of the Depositary.  The Property Trustee may conclusively 
     rely and shall be fully protected in relying upon information furnished 
     by the Depositary or any agent thereof with respect to its Participants 
     and any beneficial owners.

          (ii)   The Property Trustee and Registrar shall have no obligation 
     or duty to monitor, determine or inquire as to compliance with any 
     restrictions on transfer imposed under this Declaration or under 
     applicable law with respect to any transfer of any interest in any 
     Capital Security (including any transfer between or among Participants 
     or beneficial owners in any Global Capital Security) other than to 
     require delivery of such certificates and other documentation or 
     evidence as are expressly required by, and to do so if and when 
     expressly required by, the terms of this Declaration, and to examine the 
     same to determine substantial compliance as to form with the express 
     requirements hereof.

          (l)  MINIMUM TRANSFERS.  The Capital Securities will be issued, and 
may be transferred, only in blocks having a liquidation amount (before giving 
effect to 

                                       50
<PAGE>

any partial redemption) of not less than $100,000 (100 Capital Securities). 
Any transfer, sale or other disposition of the Capital Securities in a block 
having a liquidation amount (before giving effect to any partial redemption) 
of less than $100,000 shall be deemed to be void and of no legal effect 
whatsoever.  Any such transferee shall be deemed not to be the Holder of such 
Capital Securities for any purpose, including but not limited to the receipt 
of Distributions on such Capital Securities, and such transferee shall be 
deemed to have no interest whatsoever in such Capital Securities.  All 
Capital Securities will bear the following legend:

          THIS CAPITAL SECURITY WILL BE ISSUED, AND MAY BE
          TRANSFERRED, ONLY IN BLOCKS HAVING A LIQUIDATION AMOUNT
          (BEFORE GIVING EFFECT TO ANY PARTIAL REDEMPTION) OF NOT LESS
          THAN $100,000 (100 CAPITAL SECURITIES).  ANY TRANSFER, SALE
          OR OTHER DISPOSITION OF THE CAPITAL SECURITIES IN A BLOCK
          HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY
          PARTIAL REDEMPTION) OF LESS THAN $100,000 SHALL BE DEEMED TO
          BE VOID AND OF NO LEGAL EFFECT WHATSOEVER.  ANY SUCH
          TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH
          CAPITAL SECURITIES FOR ANY PURPOSE, INCLUDING BUT NOT
          LIMITED TO THE RECEIPT OF DISTRIBUTIONS ON SUCH CAPITAL
          SECURITIES, AND SUCH TRANSFEREE SHALL BE DEEMED TO HAVE NO
          INTEREST WHATSOEVER IN SUCH CAPITAL SECURITIES.

          SECTION 9.3.  DEEMED SECURITY HOLDERS.  The Trustees may treat the 
Person in whose name any Security shall be registered on the books and 
records of the Trust as the sole owner of such Security for purposes of 
receiving Distributions and for all other purposes whatsoever and, 
accordingly, shall not be bound to recognize any equitable or other claim to 
or interest in such Security on the part of any Person, whether or not the 
Trust shall have actual or other notice thereof.

Rule 144A Capital Securities shall initially be registered in the name of a 
nominee of the Depositary and Regulation S Capital Securities shall initially 
be registered in the name of a nominee of the Depositary for the direct or 
indirect accounts of Euroclear and Cedel.

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<PAGE>

          SECTION 9.4.  BOOK ENTRY INTERESTS.  Global Capital Securities 
shall initially be registered on the books and records of the Trust in the 
name of Cede & Co., the nominee of the Depositary, and no Capital Security 
Beneficial Owner will receive a Definitive Capital Security Certificate 
representing such Capital Security Beneficial Owner's interests in such 
Global Capital Securities, except as provided in Section 9.2.  Unless and 
until definitive, fully registered Capital Securities certificates have been 
issued to the Capital Security Beneficial Owners pursuant to Section 9.2 and 
Section 7.9:

          (a)  the provisions of this Section 9.4 shall be in full force and 
effect;

          (b)  the Trust and the Trustees shall be entitled to deal with the 
Depositary for all purposes of this Declaration (including the payment of 
Distributions on the Global Capital Securities and receiving approvals, votes 
or consents hereunder) as the holder of the Capital Securities and the sole 
Holder of the Global Certificates and shall have no obligation to the Capital 
Security Beneficial Owners;

          (c)  to the extent that the provisions of this Section 9.4 conflict 
with any other provisions of this Declaration, the provisions of this Section 
9.4 shall control; and 

          (d)  the rights of the Capital Security Beneficial Owners shall be 
exercised only through the Depositary and shall be limited to those 
established by law and agreements between such Capital Security Beneficial 
Owners and the Depositary and/or the Participants and receive and transmit 
payments of Distributions on the Global Certificates to such Participants.  
The Depositary will make book entry transfers among the Participants.

          SECTION 9.5.  NOTICES TO DEPOSITARY.  Whenever a notice or other 
communication to the Capital Security Holders is required under this 
Declaration, the Trustees shall give all such notices and communications 
specified herein to be given to the Holders of Global Capital Securities to 
the Depositary, and shall have no notice obligations to the Capital Security 
Beneficial Owners.

          SECTION 9.6.  APPOINTMENT OF SUCCESSOR DEPOSITARY. If any 
Depositary elects to discontinue its services as securities depositary with 
respect to the Capital Securities, the Regular Trustees may, in their sole 
discretion, appoint a successor Depositary with respect to such Capital 
Securities.

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<PAGE>


                                     ARTICLE X

                             LIMITATION OF LIABILITY OF
                      HOLDERS OF SECURITIES, TRUSTEES OR OTHERS

          SECTION 10.1.  LIABILITY.  (a) Except as expressly set forth in 
this Declaration, the Capital Securities Guarantee and the terms of the 
Securities, the Sponsor shall not be:

          (i)    personally liable for the return of any portion of the 
     capital contributions (or any return thereon) of the Holders of the 
     Securities which shall be made solely from assets of the Trust; and

          (ii)   required to pay to the Trust or to any Holder of Securities 
     any deficit upon dissolution of the Trust or otherwise.

          (b)  The Holder of the Common Securities shall be liable for all of 
the debts and obligations of the Trust (other than with respect to the 
Securities) to the extent not satisfied out of the Trust's assets.

          (c)  Pursuant to Section  3803(a) of the Business Trust Act, the 
Holders of the Capital Securities shall be entitled to the same limitation of 
personal liability extended to stockholders of private corporations for 
profit organized under the General Corporation Law of the State of Delaware.

          SECTION 10.2.  EXCULPATION.  (a)  No Indemnified Person shall be 
liable, responsible or accountable in damages or otherwise to the Trust or 
any Covered Person for any loss, damage or claim incurred by reason of any 
act or omission performed or omitted by such Indemnified Person in good faith 
on behalf of the Trust and in a manner such Indemnified Person reasonably 
believed to be within the scope of the authority conferred on such 
Indemnified Person by the Declaration or by law, except that an Indemnified 
Person shall be liable for any such loss, damage or claim incurred by reason 
of such Indemnified Person's negligence or willful misconduct with respect to 
such acts or omissions.

          (b)  An Indemnified Person shall be fully protected in relying in 
good faith upon the records of the Trust and upon such information, opinions, 
reports or statements presented to the Trust by any Person as to matters the 
Indemnified Person reasonably believes are within such other Person's 
professional or expert competence and

                                       53
<PAGE>

who has been selected with reasonable care by or on behalf of the Trust, 
including information, opinions, reports or statements as to the value and 
amount of the assets, liabilities, profits, losses, or any other facts 
pertinent to the existence and amount of assets from which Distributions to 
Holders of Securities might properly be paid.

          SECTION 10.3.  FIDUCIARY DUTY.  (a)  To the extent that, at law or 
in equity, an Indemnified Person has duties (including fiduciary duties) and 
liabilities relating thereto to the Trust or to any other Covered Person, an 
Indemnified Person acting under this Declaration shall not be liable to the 
Trust or to any other Covered Person for its good faith reliance on the 
provisions of this Declaration.  The provisions of this Declaration, to the 
extent that they restrict the duties and liabilities of an Indemnified Person 
otherwise existing at law or in equity (other than the duties imposed on the 
Property Trustee under the Trust Indenture Act), are agreed by the parties 
hereto to replace such other duties and liabilities of such Indemnified 
Person.

          (b)  Unless otherwise expressly provided herein:

          (i)    whenever a conflict of interest exists or arises between an 
     Indemnified Person and any Covered Person; or

          (ii)   whenever this Declaration or any other agreement 
     contemplated herein or therein provides that an Indemnified Person shall 
     act in a manner that is, or provides terms that are, fair and reasonable 
     to the Trust or any Holder of Securities,

the Indemnified Person shall resolve such conflict of interest, take such 
action or provide such terms, considering in each case the relative interest 
of each party (including its own interest) to such conflict, agreement, 
transaction or situation and the benefits and burdens relating to such 
interests, any customary or accepted industry practices, and any applicable 
generally accepted accounting practices or principles.  In the absence of bad 
faith by the Indemnified Person, the resolution, action or term so made, 
taken or provided by the Indemnified Person shall not constitute a breach of 
this Declaration or any other agreement contemplated herein or of any duty or 
obligation of the Indemnified Person at law or in equity or otherwise.

          (c)  Whenever in this Declaration an Indemnified Person is 
permitted or required to make a decision:

          (i)    in its "discretion" or under a grant of similar authority, 
     the Indemnified Person shall be entitled to consider such interests and 
     factors as it

                                       54
<PAGE>

     desires, including its own interests, and shall have no duty or 
     obligation to give any consideration to any interest of or factors 
     affecting the Trust or any other Person; or

          (ii)   in its "good faith" or under another express standard, the 
     Indemnified Person shall act under such express standard and shall not 
     be subject to any other or different standard imposed by this 
     Declaration or by applicable law.

          SECTION 10.4.  INDEMNIFICATION.  (a)  To the fullest extent 
permitted by applicable law, the Sponsor shall indemnify and hold harmless 
each Indemnified Person from and against any loss, damage, liability, tax, 
penalty, expense or claim of any kind or nature whatsoever incurred by such 
Indemnified Person by reason of the creation, operation or termination of the 
Trust or any act or omission performed or omitted by such Indemnified Person 
in good faith on behalf of the Trust and in a manner such Indemnified Person 
reasonably believed to be within the scope of authority conferred on such 
Indemnified Person by this Declaration, except that no Indemnified Person 
shall be entitled to be indemnified in respect of any loss, damage or claim 
incurred by such Indemnified Person by reason of its own negligence or 
willful misconduct with respect to such acts or omissions.

          (b)  To the fullest extent permitted by applicable law, expenses 
(including reasonable legal fees and expenses) incurred by an Indemnified 
Person in defending any claim, demand, action, suit or proceeding shall, from 
time to time, be advanced by the Sponsor prior to the final disposition of 
such claim, demand, action, suit or proceeding upon receipt by the Sponsor of 
an undertaking by or on behalf of the Indemnified Person to repay such amount 
if it shall be determined that the Indemnified Person is not entitled to be 
indemnified as authorized in Section 10.4(a).  The indemnification shall 
survive the termination of this Declaration.

          SECTION 10.5.  OUTSIDE BUSINESSES.  Any Covered Person, the 
Sponsor, the Delaware Trustee and the Property Trustee may engage in or 
possess an interest in other business ventures of any nature or description, 
independently or with others, similar or dissimilar to the business of the 
Trust, and the Trust and the Holders of Securities shall have no rights by 
virtue of this Declaration in and to such independent ventures or the income 
or profits derived therefrom and the pursuit of any such venture, even if 
competitive with the business of the Trust, shall not be deemed wrongful or 
improper.  No Covered Person, the Sponsor, the Delaware Trustee, or the 
Property Trustee shall be obligated to present any particular investment or 
other opportunity to the Trust even if such opportunity is of a character 
that, if presented to the Trust, could be taken by the 

                                       55
<PAGE>

Trust, and any Covered Person, the Sponsor, the Delaware Trustee and the 
Property Trustee shall have the right to take for its own account 
(individually or as a partner or fiduciary) or to recommend to others any 
such particular investment or other opportunity.  Any Covered Person, the 
Delaware Trustee and the Property Trustee may engage or be interested in any 
financial or other transaction with the Sponsor or any Affiliate of the 
Sponsor, or may act as depositary for, trustee or agent for, or act on any 
committee or body of holders of, securities or other obligations of the 
Sponsor or its Affiliates.

                                     ARTICLE XI

                                     ACCOUNTING

          SECTION 11.1.  FISCAL YEAR.  The fiscal year ("Fiscal Year") of the 
Trust shall be the calendar year, or such other year as is required by the 
Code.

          SECTION 11.2.  CERTAIN ACCOUNTING MATTERS.  (a)  At all times 
during the existence of the Trust, the Regular Trustees shall keep, or cause 
to be kept, full books of account, records and supporting documents, which 
shall reflect in reasonable detail, each transaction of the Trust.  The books 
of account shall be maintained on the accrual method of accounting, in 
accordance with United States generally accepted accounting principles, 
consistently applied.  The Trust shall use the accrual method of accounting 
for United States federal income tax purposes.

          (b)  The Regular Trustees shall cause to be duly prepared and 
delivered to each of the Holders of Securities, any annual United States 
federal income tax information statement required by the Code, containing 
such information with regard to the Securities held by each Holder as is 
required by the Code and the Treasury Regulations.  Notwithstanding any right 
under the Code to deliver any such statement at a later date, the Regular 
Trustees shall endeavor to deliver all such statements within 30 days after 
the end of each Fiscal Year of the Trust.

          (c)  The Regular Trustees shall cause to be duly prepared and filed 
with the appropriate taxing authority, an annual United States federal income 
tax return, on a Form 1041 or such other form required by United States 
federal income tax law, and any other annual income tax returns required to 
be filed by the Regular Trustees on behalf of the Trust with any state or 
local taxing authority.

          SECTION 11.3.  BANKING.  The Trust shall maintain one or more bank 
accounts in the name and for the sole benefit of the Trust; PROVIDED, 
HOWEVER, that all 

                                       56
<PAGE>

payments of funds in respect of the Debentures held by the Property Trustee 
shall be made directly to the Property Account and no other funds of the 
Trust shall be deposited in the Property Account.  The sole signatories for 
such accounts shall be designated by the Regular Trustees; PROVIDED, HOWEVER, 
that the Property Trustee shall designate the signatories for the Property 
Account.

          SECTION 11.4.  WITHHOLDING.  The Trust and the Regular Trustees 
shall comply with all withholding requirements under United States federal, 
state and local law.  The Trust shall request, and the Holders shall provide 
to the Trust, such forms or certificates as are necessary to establish an 
exemption from withholding with respect to each Holder or underlying 
beneficial owner, and any representations and forms as shall reasonably be 
requested by the Trust to assist it in determining the extent of, and in 
fulfilling, its withholding obligations.  The Regular Trustees shall file 
required forms with the applicable jurisdictions and, unless an exemption 
from withholding is properly established by a Holder or underlying beneficial 
owner, shall remit amounts withheld with respect to the Holder or underlying 
beneficial owner to applicable jurisdictions.  To the extent that the Trust 
is required to withhold and pay over any amounts to any authority with 
respect to distributions or allocations to any Holder or underlying 
beneficial owner, the amount withheld shall be deemed to be a distribution in 
the amount of the withholding to the Holder or underlying beneficial owner.  
In the event of any claimed over-withholding, Holders shall be limited to an 
action against the applicable jurisdiction.  If the amount required to be 
withheld was not withheld from actual Distributions made, the Trust may 
reduce subsequent Distributions by the amount of such withholding.

                                    ARTICLE XII

                             AMENDMENTS AND MEETINGS

          SECTION 12.1.  AMENDMENTS.  (a)  Except as otherwise provided in 
this Declaration or by any applicable terms of the Securities, this 
Declaration may only be amended by a written instrument approved and executed 
by:

          (i)    the Regular Trustees (or, if there are more than two Regular 
     Trustees, a majority of the Regular Trustees);

          (ii)   if the amendment affects the rights, powers, duties, 
     obligations or immunities of the Property Trustee, the Property Trustee; 
     and

                                       57
<PAGE>

          (iii)  if the amendment affects the rights, powers, duties, 
     obligations or immunities of the Delaware Trustee, the Delaware Trustee;

          (b)  no amendment shall be made, and any such purported amendment 
shall be void and ineffective:

          (i)    unless, in the case of any proposed amendment, the Property 
     Trustee shall have first received an Officers' Certificate from each of 
     the Trust and the Sponsor that such amendment is permitted by, and 
     conforms to, the terms of this Declaration (including the terms of the 
     Securities);

          (ii)   unless, in the case of any proposed amendment which affects 
     the rights, powers, duties, obligations or immunities of the Property 
     Trustee, the Property Trustee shall have first received:

               (A)  an Officers' Certificate from each of the Trust and the
          Sponsor that such amendment is permitted by, and conforms to, the
          terms of this Declaration (including the terms of the Securities); and

               (B)  an opinion of counsel (who may be counsel to the Sponsor or
          the Trust) that such amendment is permitted by, and conforms to, the
          terms of this Declaration (including the terms of the Securities); and

          (iii)  to the extent the result of such amendment would be to:

               (A)  cause the Trust to fail to continue to be classified for
          purposes of United States federal income taxation as a grantor trust;

               (B)  reduce or otherwise adversely affect the powers of the
          Property Trustee in contravention of the Trust Indenture Act; or

               (C)  cause the Trust to be deemed to be an Investment Company
          required to be registered under the Investment Company Act;

          (c)  at such time after the Trust has issued any Securities that 
remain outstanding, any amendment that would adversely affect the rights, 
privileges or preferences of any Holder of Securities may be effected only 
with such additional requirements as may be set forth in the terms of such 
Securities;

                                       58
<PAGE>

          (d)   this Section 12.1 shall not be amended without the consent of 
all of the Holders of the Securities;

          (e)   Article IV shall not be amended without the consent of the 
Holders of a Majority in liquidation amount of the Common Securities;

          (f)   the rights of the holders of the Common Securities under 
Article V to increase or decrease the number of, and appoint and remove 
Trustees shall not be amended without the consent of the Holders of a 
Majority in liquidation amount of the Common Securities; and

          (g)   notwithstanding Section 12.1(c), this Declaration may be 
amended without the consent of the Holders of the Securities to:

          (i)     cure any ambiguity;

          (ii)    correct or supplement any provision in this Declaration 
     that may be defective or inconsistent with any other provision of this 
     Declaration;

          (iii)  add to the covenants, restrictions or obligations of the 
     Sponsor;

          (iv)   conform to any change in Rule 3a-5 under the Investment 
     Company Act or written change in interpretation or application of Rule 
     3a-5 under the Investment Company Act by any legislative body, court, 
     government agency or regulatory authority which amendment does not have 
     a material adverse effect on the rights, preferences or privileges of 
     the Holders; and

          (v)    to modify, eliminate or add to any provisions to such extent 
     as shall be necessary to ensure that the Trust will be classified for 
     United States federal income tax purposes as a grantor trust at all 
     times that any Securities are outstanding which amendment does not have 
     an adverse effect on the rights, preferences or privileges of the 
     Holders.

          SECTION 12.2.  MEETINGS OF THE HOLDERS OF SECURITIES; ACTION BY 
WRITTEN CONSENT.  (a)  Meetings of the Holders of any class of Securities may 
be called at any time by the Regular Trustees (or as provided in the terms of 
the Securities) to consider and act on any matter on which Holders of such 
class of Securities are entitled to act under the terms of this Declaration, 
the terms of the Securities or the rules of any stock exchange on which the 
Capital Securities are listed or admitted for trading.  The Regular Trustees 
shall call a meeting of the Holders of such class if directed to do so by the 

                                       59
<PAGE>

Holders of at least 10% in liquidation amount of such class of Securities.  
Such direction shall be given by delivering to the Regular Trustees one or 
more requests in a writing stating that the signing Holders of Securities 
wish to call a meeting and indicating the general or specific purpose for 
which the meeting is to be called.  Any Holders of Securities calling a 
meeting shall specify in writing the Certificates held by the Holders of 
Securities exercising the right to call a meeting and only those Securities 
represented by the Certificates so specified shall be counted for purposes of 
determining whether the required percentage set forth in the second sentence 
of this paragraph has been met.

          (b)  Except to the extent otherwise provided in the terms of the 
Securities, the following provisions shall apply to meetings of Holders of 
Securities:

          (i)    notice of any such meeting shall be given to all the Holders 
     of Securities having a right to vote thereat at least 7 days and not 
     more than 60 days before the date of such meeting.  Whenever a vote, 
     consent or approval of the Holders of Securities is permitted or 
     required under this Declaration or the rules of any stock exchange on 
     which the Capital Securities are listed or admitted for trading, such 
     vote, consent or approval may be given at a meeting of the Holders of 
     Securities.  Any action that may be taken at a meeting of the Holders of 
     Securities may be taken without a meeting if a consent in writing 
     setting forth the action so taken is signed by the Holders of Securities 
     owning not less than the minimum aggregate liquidation amount of 
     Securities that would be necessary to authorize or take such action at a 
     meeting at which all Holders of Securities having a right to vote 
     thereon were present and voting.  Prompt notice of the taking of action 
     without a meeting shall be given to the Holders of Securities entitled 
     to vote who have not consented in writing. The Regular Trustees may 
     specify that any written ballot submitted to the Security Holders for 
     the purpose of taking any action without a meeting shall be returned to 
     the Trust within the time specified by the Regular Trustees;

          (ii)   each Holder of a Security may authorize any Person to act 
     for it by proxy on all matters in which a Holder of Securities is 
     entitled to participate, including waiving notice of any meeting, or 
     voting or participating at a meeting.  No proxy shall be valid after the 
     expiration of 11 months from the date thereof unless otherwise provided 
     in the proxy. Every proxy shall be revocable at the pleasure of the 
     Holder of Securities executing it.  Except as otherwise provided herein, 
     all matters relating to the giving, voting or validity of proxies shall 
     be governed by the General Corporation Law of the State of Delaware 
     relating to proxies, and judicial interpretations thereunder, as if the 
     Trust were a Delaware 

                                       60
<PAGE>

     corporation and the Holders of the Securities were stockholders of a 
     Delaware corporation;

          (iii)  each meeting of the Holders of the Securities shall be 
     conducted by the Regular Trustees or by such other Person that the 
     Regular Trustees may designate; and

          (iv)   unless the Business Trust Act, this Declaration, the terms 
     of the Securities or the listing rules of any stock exchange on which 
     the Capital Securities are then listed or trading, provide otherwise, 
     the Regular Trustees, in their sole discretion, shall establish all 
     other provisions relating to meetings of Holders of Securities, 
     including notice of the time, place or purpose of any meeting at which 
     any matter is to be voted on by any Holders of Securities, waiver of any 
     such notice, action by consent without a meeting, the establishment of a 
     record date, quorum requirements, voting in person or by proxy or any 
     other matter with respect to the exercise of any such right to vote.

                                    ARTICLE XIII

                         REPRESENTATIONS OF DELAWARE TRUSTEE

          SECTION 13.1.  REPRESENTATIONS AND WARRANTIES OF DELAWARE TRUSTEE.

          The Trustee that acts as initial Delaware Trustee represents and 
warrants to the Trust and to the Sponsor at the date of this Declaration and 
at the Closing Date, and each Successor Delaware Trustee represents and 
warrants to the Trust and the Sponsor at the time of the Successor Delaware 
Trustee's acceptance of its appointment as Delaware Trustee that:

          (a)  The Delaware Trustee is a banking corporation with trust 
powers, duly organized, validly existing and in good standing under the laws 
of the jurisdiction of its organization, with trust power and authority to 
execute and deliver, and to carry out and perform its obligations under the 
terms of, the Declaration.

          (b)  The execution, delivery and performance by the Delaware 
Trustee of this Declaration has been duly authorized by all necessary 
corporate action on the part of the Delaware Trustee.  This Declaration has 
been duly executed and delivered by the Delaware Trustee, and, assuming the 
due authorization, execution and delivery of the Declaration by the other 
parties hereto, constitutes a legal, valid and binding obligation 

                                       61
<PAGE>

of the Delaware Trustee, enforceable against it in accordance with its terms, 
subject to applicable bankruptcy, reorganization, moratorium, insolvency, and 
other similar laws affecting creditors' rights generally and to general 
principles of equity and the discretion of the court (regardless of whether 
the enforcement of such remedies is considered in a proceeding in equity or 
at law).

          (c)  The execution, delivery and performance of this Declaration by 
the Delaware Trustee does not conflict with or constitute a breach of the 
certificate of incorporation or By-laws of the Delaware Trustee.

          (d)  No consent, approval or authorization of, or registration with 
or notice to, any state or Federal banking authority is required for the 
execution, delivery or performance by the Delaware Trustee, of this 
Declaration.

          (e)  The Delaware Trustee is an entity which has its principal 
place of business in the State of Delaware and meets the eligibility criteria 
set forth in Section 5.2.

          (f)  The Delaware Trustee has been authorized to perform its 
obligations under the Certificate of Trust and this Declaration.

                                    ARTICLE XIV

                        REPRESENTATIONS OF PROPERTY TRUSTEE

          SECTION 14.1.  REPRESENTATIONS AND WARRANTIES OF PROPERTY TRUSTEE.

          The Trustee that acts as initial Property Trustee represents and 
warrants to the Trust and to the Sponsor at the date of this Declaration and 
at the Closing Date, and each Successor Property Trustee represents and 
warrants to the Trust and the Sponsor at the time of the Successor Property 
Trustee's acceptance of its appointment as Property Trustee that:

          (a)  The Property Trustee is a banking corporation with trust 
powers, duly organized, validly existing and in good standing under the laws 
of the jurisdiction of its organization, with trust power and authority to 
execute and deliver, and to carry out and perform its obligations under the 
terms of, the Declaration.

          (b)  The execution, delivery and performance by the Property 
Trustee of this Declaration has been duly authorized by all necessary 
corporate action on the part 

                                       62
<PAGE>

of the Property Trustee.  This Declaration has been duly executed and 
delivered by the Property Trustee, and, assuming the due authorization, 
execution and delivery of the Declaration by the other parties hereto, 
constitutes a legal, valid and binding obligation of the Property Trustee, 
enforceable against it in accordance with its terms, subject to applicable 
bankruptcy, reorganization, moratorium, insolvency, and other similar laws 
affecting creditors' rights generally and to general principles of equity and 
the discretion of the court (regardless of whether the enforcement of such 
remedies is considered in a proceeding in equity or at law).

          (c)  The execution, delivery and performance of this Declaration by 
the Property Trustee does not conflict with or constitute a breach of the 
certificate of incorporation or By-laws of the Property Trustee.

          (d)  No consent, approval or authorization of, or registration with 
or notice to, any state or Federal banking authority is required for the 
execution, delivery or performance by the Property Trustee, of this 
Declaration.

          (e)  The Property Trustee is an entity which meets the eligibility 
criteria under Section 5.3(a) to serve as Property Trustee.

          (f)  The  Property Trustee has been authorized to perform its 
obligations under the Certificate of Trust and this Declaration.

                                     ARTICLE XV

                                    MISCELLANEOUS

          SECTION 15.1.  NOTICES.  All notices provided for in this 
Declaration shall be in writing, duly signed by the party giving such notice, 
and shall be delivered, telecopied or mailed by certified mail, return 
receipt requested, or overnight courier, as follows:

          (a)  If given to the Trust, in care of the Regular Trustees at the 
Trust's mailing address set forth below (or such other address as the Trust 
may give notice of to the Holders of the Securities):

               c/o Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California  91367-5021
               Attention:     Chief Financial Officer


                                       63
<PAGE>

          (b)  If given to the Property Trustee, at the mailing address set 
forth below (or such other address as the Property Trustee may give notice of 
to the Holders of the Securities):

               NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION
               Sixth & Marquette
               Minneapolis, Minnesota 55479-0069
               Attention:     Corporate Trust Administration,
                              Zenith National Insurance Capital Trust I

          (c)  If given to the Holder of the Common Securities, at the 
mailing address of the Sponsor set forth below (or such other address as the 
Holder of the Common Securities may give notice to the Trust):

               c/o Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California  91367-5021
               Attention:     Chief Financial Officer

          (d)  If given to the Delaware Trustee, at the mailing address set 
forth below (or such other address as the Delaware Trustee may give notice to 
the Trust):

               WILMINGTON TRUST COMPANY
               1100 North Market Street
               Wilmington, Delaware 19890-0001
               Attention:     Corporate Trust Administration,
                              Zenith National Insurance Capital Trust I

          (e)  If given to the Regular Trustee, at the mailing address set 
forth below (or such other address as the Regular Trustee may give notice to 
the Trust):

               STANLEY R. ZAX
               Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California 91367-5021

               FREDRICKA TAUBITZ
               Zenith National Insurance Corp.
               21255 Califa Street
               Woodland Hills, California 91367-5021

                                       64
<PAGE>


          (f)  If given to any other Holder, at the address set forth on the 
books and records of the Trust or the Registrar, as applicable.

          All such notices shall be deemed to have been given when received 
in person, telecopied with receipt confirmed, or mailed by certified mail, 
return receipt requested, or mailed by overnight courier except that, if a 
notice or other document is refused delivery or cannot be delivered because 
of a changed address of which no notice was given, such notice or other 
document shall be deemed to have been delivered on the date of such refusal 
or inability to deliver.

          SECTION 15.2.  GOVERNING LAW.  This Declaration and the rights of 
the parties hereunder shall be governed by and interpreted in accordance with 
the laws of the State of Delaware and all rights and remedies shall be 
governed by such laws, without regard to conflicts of laws principles.

          SECTION 15.3.  INTENTION OF THE PARTIES.  It is the intention of 
the parties hereto that the Trust be classified for United States federal 
income tax purposes as a grantor trust.  The provisions of this Declaration 
shall be interpreted to further this intention of the parties.

          SECTION 15.4.  HEADINGS. Headings contained in this Declaration are 
inserted for convenience of reference only and do not affect the 
interpretation of this Declaration or any provision hereof.

          SECTION 15.5.  SUCCESSORS AND ASSIGNS.  Whenever in this 
Declaration any of the parties hereto is named or referred to, the successors 
and assigns of such party shall be deemed to be included, and all covenants 
and agreements in this Declaration by the Sponsor and the Trustees shall bind 
and inure to the benefit of their respective successors and assigns, whether 
so expressed.

          SECTION 15.6.  PARTIAL ENFORCEABILITY.  If any provision of this 
Declaration, or the application of such provision to any Person or 
circumstance, shall be held invalid, the remainder of this Declaration, or 
the application of such provision to persons or circumstances other than 
those to which it is held invalid, shall not be affected thereby.

          SECTION 15.7.  COUNTERPARTS.  This Declaration may contain more 
than one counterpart of the signature page and this Declaration may be 
executed by the affixing of the signature of each of the Trustees to one of 
such counterpart signature pages. All of such counterpart signature pages 
shall be read as though one, and they shall

                                       65
<PAGE>

have the same force and effect as though all of the signers had signed a 
single signature page.

                                       66
<PAGE>

          IN WITNESS WHEREOF, the undersigned has caused these presents to be 
executed as of the day and year first above written.

                              ZENITH NATIONAL INSURANCE
                                 CORP., as Sponsor


                              By: /s/ Stanley R. Zax
                                 ------------------------------------
                                   Name: Stanley R. Zax
                                   Title: Chairman and President

                              WILMINGTON TRUST COMPANY,
                                   not in its individual capacity but
                                   solely as Delaware Trustee


                              By:  /s/ Patricia A. Evans
                                 ------------------------------------
                                   Name: Patricia A. Evans
                                   Title: Financial Services Officer

                              NORWEST BANK MINNESOTA,
                                 NATIONAL ASSOCIATION,
                                   not in its individual capacity but
                                   solely as Property Trustee


                              By:  /s/ Jane Y. Schweiger
                                 ------------------------------------
                                   Name: Jane Y. Schweiger
                                   Title: Corporate Trust Officer


                                /s/ Stanley R. Zax
                              ---------------------------------------
                              STANLEY R. ZAX
                                   not in his individual capacity but
                                   solely as Regular Trustee


                                /s/ Fredricka Taubitz
                              ---------------------------------------
                              FREDRICKA TAUBITZ
                                   not in her individual capacity but
                                   solely as Regular Trustee


<PAGE>

                                       ANNEX I

                                       TERMS OF

                               8.55% CAPITAL SECURITIES
                               8.55% COMMON SECURITIES


          Pursuant to Section 7.1 of the Amended and Restated Declaration of
Trust, dated as of July 30, 1998 (as amended from time to time, the
"Declaration"), the designation, rights, privileges, restrictions, preferences
and other terms and provisions of the Capital Securities and the Common
Securities are set out below (each capitalized term used but not defined herein
has the meaning set forth in the Declaration):

1.  DESIGNATION AND NUMBER.

     (a)  "Capital Securities." 75,000 Capital Securities of the Trust with an
          aggregate liquidation amount with respect to the assets of the Trust
          of $75 Million Dollars ($75,000,000), and a liquidation amount with
          respect to the assets of the Trust of $1,000 per Capital Security, are
          hereby designated for the purposes of identification only as "8.55%
          Capital Securities (Liquidation Amount $1,000 per Capital Security)"
          (the "Capital Securities").  The Capital Security Certificates
          evidencing the Capital Securities shall be substantially in the forms
          attached hereto as EXHIBIT A, EXHIBIT B and EXHIBIT C, as applicable,
          with such changes and additions thereto or deletions therefrom as may
          be required by ordinary usage, custom or practice or to conform to the
          rules of any stock exchange or other organization, if any, on which
          the Capital Securities are listed.

     (b)  "Common Securities."  2,320 Common Securities of the Trust with an
          aggregate liquidation amount with respect to the assets of the Trust
          of Two Million Three Hundred Twenty Thousand Dollars ($2,320,000), and
          a liquidation amount with respect to the assets of Trust of $1,000 per
          Common Security, are hereby designated for the purposes of
          identification only as "8.55% Common Securities (Liquidation Amount
          $1,000 per Common Security)" (the "Common Securities").  The Common
          Securities Certificates evidencing the Common Securities shall be
          substantially in the form attached hereto as EXHIBIT D, with such
          changes and additions thereto or deletions therefrom as may be
          required by ordinary usage, custom or practice.

                                       1
<PAGE>

2.   DISTRIBUTIONS.

     (a)  Distributions payable on each Security will be fixed at a rate per
          annum of 8.55% (the "Coupon Rate") of the liquidation amount of $1,000
          per Security, such rate being the rate of interest payable on the
          Debentures to be held by the Property Trustee.  Distributions not
          currently made will bear interest thereon compounded semi-annually at
          the Coupon Rate (to the extent permitted by applicable law).  The term
          "Distributions" as used herein includes such cash distributions and
          any such interest payable unless otherwise stated.  A Distribution is
          payable only to the extent that payments are made in respect of the
          Debentures held by the Property Trustee and to the extent the Property
          Trustee has funds legally available therefor.  The amount of
          Distributions payable for any period will be computed for any full
          semi-annual Distribution period on the basis of a 360-day year of
          twelve 30-day months, and for any period of less than a full calendar
          month the number of days elapsed in such month.

     (b)  Distributions on the Securities will be cumulative, will accrue 
          from the date of original issuance and will be payable 
          semi-annually in arrears, on the following dates, which dates 
          correspond to the interest payment dates on the Debentures: 
          February 1 and August 1 of each year, commencing on February 1, 
          1999, except as otherwise described below.  So long as no Event of 
          Default (or an event which would be an Event of Default with the 
          giving of required notice or the passage of time) has occurred and 
          is continuing, the Sponsor has the right under the Indenture to 
          defer payments of interest by deferring the interest payment period 
          from time to time on the Debentures for a period not exceeding 10 
          consecutive semi-annual periods (each an "Deferral Period") and, as 
          a consequence of such deferral, Distributions will also be 
          deferred.  Despite such deferral, semi-annual Distributions will 
          continue to accrue with interest thereon (to the extent permitted 
          by applicable law) at the Coupon Rate compounded semi-annually 
          during any such Deferral Period.  Prior to the termination of any 
          such Deferral Period, the Sponsor may further extend such Deferral 
          Period so long as no Event of Default (or an event which would be 
          an Event of Default with the giving of required notice or the 
          passage of time) has occurred and is continuing; PROVIDED THAT such 
          Deferral Period together with all such previous and further 
          deferrals thereof may not exceed 10 consecutive semi-annual periods 
          or extend beyond the maturity (whether at the stated maturity or by 
          declaration of acceleration, call for redemption or otherwise) of 
          the Debentures under the Indenture.  

                                       2
<PAGE>


          Payments of accrued Distributions will be payable to Holders as 
          they appear on the books and records of the Trust on the first 
          record date after the end of the Deferral Period.  Upon the 
          termination of any Deferral Period and the payment of all amounts 
          then due, the Sponsor may commence a new Deferral Period, subject 
          to the above requirements.  During any such Deferral Period, the 
          Debenture Issuer may not (i) declare or pay any dividends on 
          distributions with respect to, or redeem, purchase acquire, or make 
          a liquidation payment with respect to, any of the Debenture 
          Issuer's capital stock (which includes common and preferred stock) 
          or (ii) make any payment of principal of or premium, if any, or 
          interest on or repay, repurchase or redeem any debt securities of 
          the Debenture Issuer that rank PARI PASSU with or junior in right 
          of payment to the Debentures or (iii) make any guarantee payments 
          with respect to any guarantee by the Debenture Issuer of any 
          securities of any subsidiary of the Debenture Issuer if such 
          guarantee ranks PARI PASSU with or junior in right of payment to 
          the Debentures (other than (a) dividends or distributions in shares 
          of, or options, warrants or rights to subscribe for or purchase 
          shares of, common stock of the Debenture Issuer, (b) any 
          declaration of a dividend in connection with the implementation of 
          a stockholders' rights plan, or the issuance of stock under any 
          such plan in the future, or the redemption or repurchase of any 
          such rights pursuant thereto, (c) payments under the Capital 
          Securities Guarantee, (d) as a result of a reclassification of the 
          Debenture Issuer's capital stock or the exchange or conversion of 
          one class or series of the Debenture Issuer's capital stock for 
          another class or series of the Debenture Issuer's capital stock, 
          (e) the purchase of fractional interests in shares of the Debenture 
          Issuer's capital stock, pursuant to the conversion or exchange 
          provisions of such capital stock or the security being converted or 
          exchanged and (f) purchases of common stock of the Debenture Issuer 
          in connection with the satisfaction by the Debenture Issuer of its 
          obligations (including purchases related to the issuance of such 
          common stock or rights) under any of the Debenture Issuer's benefit 
          plans for its and its subsidiaries' directors, officers or 
          employees or any of the Debenture Issuer's dividend reinvestment 
          plans). Despite such deferral, Distributions will continue to 
          accumulate with additional Distributions thereon (to the extent 
          permitted by applicable law at a rate no greater than the rate at 
          which interest is then accruing on the Debentures) at the Coupon 
          Rate compounded semi-annually during any such Deferral Period.  
          Prior to the termination of any such Deferral Period, the Debenture 
          Issuer may further defer payments of interest by further extending 
          such Deferral Period; PROVIDED THAT such 

                                       3
<PAGE>

          Deferral Period, together with all such previous and further 
          deferrals within such Deferral Period, may not exceed 10 
          consecutive semi-annual periods, including the first semi-annual 
          period during such Deferral Period, or extend beyond the Stated 
          Maturity Date of the Debentures.  Upon the termination of any 
          Deferral Period and the payment of all amounts then due, the 
          Debenture Issuer may commence a new Deferral Period, subject to the 
          above requirements.

     (c)  Distributions on the Securities will be payable to the Holders thereof
          as they appear on the books and records of the Trust on the relevant
          record dates.  The relevant record dates shall be the fifteenth day of
          the month next preceding the month in which the relevant payment date
          falls, except as otherwise described in this Annex I to the
          Declaration.  Subject to any applicable laws and regulations and the
          provisions of the Declaration, each such payment in respect to Capital
          Securities being held in book-entry form through The Depository Trust
          Company (the "Depositary") will be made by the Trust to the
          Depositary.  Payment of Distributions to the Depositary is the
          responsibility of the Trust, disbursement of such payments to
          Depositary Participants is the responsibility of the Depositary, and
          disbursement of such payments to the Capital Security Beneficial Owner
          is the responsibility of Depositary Participants.  The relevant record
          dates for the Common Securities shall be the same record dates as for
          the Capital Securities.  Distributions payable on any Securities that
          are not punctually paid on any Distribution payment date, as a result
          of the Sponsor having failed to make payment under the Debentures,
          will cease to be payable to the Person in whose name such Securities
          are registered on the relevant record date, and such distributions on
          Securities will instead be payable to the Persons in whose name such
          Securities are registered on the special record date or other
          specified date determined in accordance with the Indenture.  If any
          date on which Distributions are payable on the Securities is not a
          Business Day, then payment of the Distribution payable on such date
          will be made on the next succeeding day that is a Business Day (and
          without any interest or other payment in respect of any such delay)
          except that, if such Business Day is in the next succeeding calendar
          year, such payment shall be made on the immediately preceding Business
          Day in each case with the same force and effect as if made on such
          date.

     (d)  In the event that there is any money or other property held by or for
          the Trust that is not accounted for in the Declaration, such property
          shall be 

                                       4
<PAGE>

          distributed Pro Rata (as defined herein) among the Holders of
          the Securities.

3.  LIQUIDATION DISTRIBUTION UPON DISSOLUTION.

          In the event of any voluntary or involuntary dissolution, winding-up
or termination of the Trust (including without limitation pursuant to Section
8.1(b) of the Declaration), the Holders of the Securities on the date of the
dissolution, winding-up or termination, as the case may be, will be entitled to
receive out of the assets of the Trust legally available for distribution to
Holders of Securities after satisfaction of liabilities of creditors of the
Trust as provided by applicable law, an amount equal to the aggregate of the
liquidation amount of $1,000 per Security plus any additional amount payable
upon redemption of the Debentures as a result of the Make-Whole Premium or
Special Event Make-Whole Premium (as such terms are defined in the Indenture),
as applicable, and accrued and unpaid Distributions thereon to the date of
payment (such amount being the "Liquidation Distribution"), unless, in
connection with such dissolution, winding-up or termination, Debentures in an
aggregate principal amount equal to the aggregate liquidation amount of such
Securities, with an interest rate identical to the Coupon Rate of, and bearing
accrued and unpaid interest in an amount equal to the accrued and unpaid
Distributions on, such Securities, shall be distributed on a Pro Rata basis to
the Holders of the Securities in exchange for such Securities as provided in
this Paragraph 3.

          If, upon any such dissolution, winding-up or termination, the
Liquidation Distribution can be paid only in part because the Trust has
insufficient assets available to pay in full the aggregate Liquidation
Distribution, then the amounts payable directly by the Trust on the Securities
shall be paid on a Pro Rata basis in accordance with paragraph 8.

          If a termination of the Trust occurs as described in clause (i), (ii),
(iii), (vi) or (vii) of Section 8.1(a) of the Declaration, the Trust shall be
liquidated by the Regular Trustees as expeditiously as the Regular Trustees
determine to be possible by distributing, after satisfaction of liabilities to
creditors of the Trust as provided by applicable law, to each holder of the
Capital Securities, Debentures with an aggregate principal amount equal to the
aggregate liquidation amount of, with an interest rate identical to the Coupon
Rate of, and accrued and unpaid 

                                       5
<PAGE>

interest equal to accrued and unpaid Distributions on, the Capital 
Securities.  In addition, at any time the Sponsor has the right to terminate 
the Trust and, after satisfaction of the liabilities to creditors of the 
Trust as provided by applicable law, cause Debentures with an aggregate 
principal amount of, with an interest rate identical to the Coupon Rate of, 
and accrued and unpaid interest equal to accrued and unpaid Distributions on, 
the outstanding Securities, to be distributed to the Holders of the 
Securities in liquidation of the Trust.

          The distribution of Debentures upon any dissolution of the Trust is 
conditioned upon the receipt by the Regular Trustees of an opinion of 
nationally recognized independent tax counsel experienced in such matters to 
the effect that the Holders of the Securities will not recognize any gain or 
loss for United States federal income tax purposes as a result of such 
dissolution of the Trust and distribution of Debentures.

          After the date fixed for any distribution of Debentures (including 
pursuant to a Special Event as set forth in paragraph 4(c) below): (i) the 
Securities will no longer be deemed to be outstanding, (ii) the Depositary or 
its nominee (or any successor Depositary or its nominee), as Holder of 
Capital Securities represented by global certificates, will receive a 
registered global certificate or certificates representing the Debentures to 
be delivered upon such distribution and (iii) any certificates representing 
Securities, except for certificates representing Capital Securities held by 
the Depositary or its nominee (or any successor Depositary or its nominee), 
will be deemed to represent Debentures with an aggregate principal amount 
equal to the aggregate liquidation amount of, with an interest rate identical 
to the Coupon Rate of, and accrued and unpaid interest equal to accrued and 
unpaid Distributions on, such Securities until such certificates are 
presented to the Sponsor or its agent for transfer or reissuance.

          If, in connection with any dissolution, winding-up or termination of
the Trust, Debentures are distributed to Holders of the Securities as provided
in this paragraph 3, the procedures set forth in paragraph 4(e) will be
applicable thereto.

4.  REDEMPTION AND DISTRIBUTION.

     (a)  Upon the repayment or payment of the Debentures in whole or in part,
          whether at maturity or upon redemption or otherwise, the proceeds from
          such repayment or redemption shall be simultaneously applied to redeem
          Securities having an aggregate liquidation amount equal to the
          aggregate principal amount of the Debentures so repaid or redeemed at
          the redemption price per Security of 100% of the liquidation amount of
          the Security to be redeemed, plus the Make-Whole Premium (as defined
          in the Indenture) or Special Event Make-Whole Premium (as defined in
          the Indenture), if any, together with accrued and unpaid Distributions
          thereon through the date of the redemption, payable in cash.  Holders
          will be given not less than 30 nor more than 60 days' notice of such
          redemption.

                                       6
<PAGE>

     (b)  If fewer than all the outstanding Securities are to be so redeemed,
          the Common Securities and the Capital Securities will be redeemed Pro
          Rata and the Capital Securities to be redeemed will be as described in
          Paragraph 4(e)(ii) below.

     (c)  [intentionally omitted]

     (d)  The Securities will not be redeemed unless all accrued and unpaid
          Distributions have been paid on all Securities for all semi-annual
          Distribution periods terminating on or before the date of redemption.

     (e)  (i)  Notice of any redemption of, or notice of distribution of
               Debentures in exchange for the Securities (a
               "Redemption/Distribution Notice") will be given by the Trust by
               mail to each Holder of Securities to be redeemed or exchanged not
               fewer than 30 nor more than 60 days before the date fixed for
               redemption or exchange thereof which, in the case of a
               redemption, will be the date fixed for redemption of the
               Debentures.  For purposes of the calculation of the date of
               redemption or exchange and the dates on which notices are given
               pursuant to this paragraph 4(e)(i), a Redemption/Distribution
               Notice shall be deemed to be given on the day such notice is
               first mailed by first-class mail, postage prepaid, to Holders of
               Securities.  Each Redemption/Distribution Notice shall be
               addressed to the Holders of Securities at the address of each
               such Holder appearing in the books and records of the Trust.  No
               defect in the Redemption/Distribution Notice or in the mailing of
               either thereof with respect to any Holder shall affect the
               validity of the redemption or exchange proceedings with respect
               to any other Holder.

          (ii) In the event that fewer than all the outstanding Securities are
               to be redeemed, the Securities to be redeemed shall be redeemed
               Pro Rata from each Holder of Capital Securities, it being
               understood that, in respect of Capital Securities registered in
               the name of and held of record by the Depositary (or any
               successor Depositary) or any nominee, the distribution of the
               proceeds of such redemption will be made to each Depositary
               Participant (or Person on whose behalf such nominee holds such
               Securities) in accordance with the procedures applied by such
               agency or nominee.

                                       7
<PAGE>

     (iii)     If Securities are to be redeemed and the Trust gives a
               Redemption/Distribution Notice, which notice may only be issued
               if the Debentures are redeemed as set out in this paragraph 4
               (which notice will be irrevocable), then (A) with respect to
               Capital Securities held in book-entry form, by 1:00 p.m., New
               York City time, on the redemption date, provided that the Sponsor
               has paid the Property Trustee a sufficient amount of cash in
               connection with the related redemption or maturity of the
               Debentures, the Property Trustee will deposit irrevocably with
               the Depositary (or successor Depositary) funds sufficient to pay
               the amount payable on redemption with respect to such Capital
               Securities and will give the Depositary irrevocable instructions
               and authority to pay the amount payable on redemption to the
               Capital Security Beneficial Owner, and (B) with respect to
               Capital Securities issued in certificated form and Common
               Securities, provided that the Sponsor has paid the Property
               Trustee a sufficient amount of cash in connection with the
               related redemption or maturity of the Debentures, the Property
               Trustee will irrevocably deposit with the Paying Agent funds
               sufficient to pay the amount payable on redemption to the Holders
               of such Securities upon surrender of their certificates.  If a
               Redemption/Distribution Notice shall have been given and funds
               deposited as required, then on the date of such deposit, all
               rights of Holders of such Securities so called for redemption
               will cease, except the right of the Holders of such Securities to
               receive the redemption price, but without interest on such
               redemption price.  Neither the Regular Trustees nor the Trust
               shall be required to register or cause to be registered the
               transfer of any Securities that have been so called for
               redemption.  If any date fixed for redemption of Securities is
               not a Business Day, then payment of the amount payable on such
               date will be made on the next succeeding day that is a Business
               Day (without any interest or other payment in respect of any such
               delay) except that, if such Business Day falls in the next
               calendar year, such payment will be made on the immediately
               preceding Business Day, in each case with the same force and
               effect as if made on such date fixed for redemption.  If payment
               of the redemption price in respect of any Securities is
               improperly withheld or refused and not paid either by the Trust
               or by the Sponsor as guarantor pursuant to the Capital Securities
               Guarantee, Distributions on such Securities will continue to
               accrue at the then applicable rate, from the original 

                                       8
<PAGE>

               redemption date to the date of payment, in which case the 
               actual payment date will be considered the date fixed for 
               redemption for purposes of calculating the amount payable upon 
               redemption (other than for purposes of calculating any 
               premium).

          (iv) Redemption/Distribution Notices shall be sent by the Regular
               Trustees on behalf of the Trust to (A) in the case of Capital
               Securities held in book-entry form, the Depositary and, in the
               case of Securities held in certificated form, the Holders of such
               certificates and (B) in respect of the Common Securities, the
               Holder thereof.

          (v)  Subject to the foregoing and applicable law (including, without
               limitation, United States federal securities laws), the Sponsor
               or any of its subsidiaries may at any time and from time to time
               purchase outstanding Capital Securities by tender, in the open
               market or by private agreement.

5.  VOTING RIGHTS - CAPITAL SECURITIES.

     (a)  Except as provided in this Annex I, in the Business Trust Act and as
          otherwise required by law, the Declaration and the Indenture, the
          Holders of the Capital Securities will have no voting rights.

     (b)  The Holders of the Capital Securities shall have the rights with
          respect to the enforcement of payment of principal, premium, if any,
          and interest on the Debentures as are set forth herein, in the
          Declaration or in the Indenture.

          Subject to the requirements set forth in this paragraph, the Holders
          of a Majority in liquidation amount of the Capital Securities, voting
          separately as a class may direct the time, method, and place of
          conducting any proceeding for any remedy available to the Property
          Trustee, or direct the exercise of any power conferred upon the
          Property Trustee under the Declaration, including the right to direct
          the Property Trustee, as holder of the Debentures, to (i) direct the
          time, method, place of conducting any proceeding for any remedy
          available to the Indenture Trustee, or exercising any trust or power
          conferred on the Indenture Trustee with respect to the Debentures,
          (ii) waive any past default and its consequences that is waivable
          under Section 5.13 of the Indenture or otherwise, (iii) 

                                       9
<PAGE>

          exercise any right to rescind or annul a declaration that the 
          principal of all the Debentures shall be due and payable or (iv) 
          consent to any amendment, modification or termination of the 
          Indenture or the Debentures, where such consent shall be required; 
          PROVIDED, HOWEVER, that, where a consent under the Indenture would 
          require the consent or act of the Holders of greater than a 
          majority of the Holders in principal amount of Debentures (a "Super 
          Majority"), the Property Trustee may only give such consent or take 
          such action at the direction of the Holders of at least the 
          proportion in liquidation amount of the Capital Securities which 
          the relevant Super Majority represents of the aggregate principal 
          amount of the Debentures outstanding.  The Property Trustee shall 
          not, and none of the other Trustees shall in any event, revoke any 
          action previously authorized or approved by a vote of the Holders 
          of the Capital Securities, except by a subsequent vote of the 
          Holders of the Capital Securities.  Other than with respect to 
          directing the time, method and place of conducting any remedy 
          available to the Property Trustee as set forth above, the Property 
          Trustee shall not take any action in accordance with the directions 
          of the Holders of the Capital Securities under this paragraph 
          unless the Property Trustee has obtained an opinion of tax counsel 
          to the effect that, as a result of such action, the Trust will not 
          fail to be classified as a grantor trust for United States federal 
          income tax purposes.

          If the Property Trustee is the sole holder of the Debentures, any
          Holder of the Capital Securities shall have the right, to the fullest
          extent permitted by applicable law, to institute suit on behalf of the
          Trust for the enforcement of the right to receive payment of the
          principal of and interest, and premium, if any, on the Debentures when
          due.  In addition, the Holders of at least 25% in aggregate
          liquidation amount of Capital Securities outstanding shall be
          entitled, to the fullest extent permitted by applicable law, to
          institute any other proceeding in the event the Indenture Trustee or
          the Property Trustee fails to do so in accordance with the terms of
          the Indenture.

          If an Event of Default shall have occurred and be continuing, the
          Holders of a Majority in liquidation amount of the Capital Securities,
          voting as a class at a meeting of Holders of Capital Securities, shall
          have the exclusive right to remove the Property Trustee.

                                       10
<PAGE>

          In addition to any other rights of the Holders provided herein or in
          the Declaration, if the Property Trustee fails to enforce its rights,
          as holder of the Debentures, under the Indenture, any Holder of
          Capital Securities may, to the fullest extent permitted by applicable
          law, institute a legal proceeding directly against the Sponsor, to
          enforce the rights of the Property Trustee, as holder of the
          Debentures, under the Indenture, without first instituting any legal
          proceeding against the Property Trustee or any other Person. 
          Notwithstanding the foregoing, if an Event of Default in respect of
          the Securities has occurred and is continuing and such event is
          attributable to the failure of the Sponsor to pay interest or
          principal on the Debentures issued to the Trust on the date such
          interest or principal is otherwise payable, then a Holder of Capital
          Securities may institute a proceeding directly against the Sponsor for
          enforcement of payment to the Holder of the Capital Securities of the
          principal of or interest on the Debentures on or after the respective
          due dates specified in the Debentures (taking into account any
          Deferral Period).

          Any approval or direction of Holders of Capital Securities may be
          given at a separate meeting of Holders of Capital Securities convened
          for such purpose, at a meeting of all of the Holders of Securities in
          the Trust or pursuant to written consent.  The Regular Trustees will
          cause a notice of any meeting at which Holders of Capital Securities
          are entitled to vote, or of any matter upon which action by written
          consent of such Holders is to be taken, to be mailed to each Holder of
          record of Capital Securities.  Each such notice will include a
          statement setting forth the following information: (i) the date of
          such meeting or the date by which such action is to be taken, (ii) a
          description of any resolution proposed for adoption at such meeting on
          which such Holders are entitled to vote or of such matter upon which
          written consent is sought and (iii) instructions for the delivery of
          proxies or consents.

          No vote or consent of the Holders of the Capital Securities will be
          required for the Trust to redeem and cancel Capital Securities or to
          distribute the Debentures in accordance with the Declaration and the
          terms of the Securities.

          Notwithstanding that Holders of Capital Securities are entitled to
          vote or consent under any of the circumstances described above, any of
          the Capital Securities that are owned by the Sponsor or any Affiliate
          of the 

                                       11
<PAGE>

          Sponsor shall not be entitled to vote or consent and shall, for
          purposes of such vote or consent, be treated as if they were not
          outstanding.

6.  VOTING RIGHTS - COMMON SECURITIES.

     (a)  Except as provided in this Annex I, in the Business Trust Act and as
          otherwise required by law and the Declaration, the Holders of the
          Common Securities will have no voting rights.

     (b)  The Holders of the Common Securities are entitled, in accordance with
          and subject to Article V of the Declaration, to vote to appoint,
          remove or replace any Trustee.

     (c)  Subject to Section 2.6 of the Declaration and only after the Event of
          Default with respect to the Capital Securities has been cured, waived,
          or otherwise eliminated and subject to the requirements of the second
          to last sentence of this paragraph, the Holders of the Majority in
          liquidation amount of the Common Securities, voting separately as a
          class, may direct the time, method, and place of conducting any
          proceeding for any remedy available to the Property Trustee, or
          exercising any power conferred upon the Property Trustee under the
          Declaration, including (i) directing the time, method, place of
          conducting any proceeding for any remedy available to the Indenture
          Trustee, or exercising any power conferred on the Indenture Trustee
          with respect to the Debentures, (ii) waiving any past default and its
          consequences that is waivable under Section 5.13 of the Indenture,
          (iii) exercising any right to rescind or annul a declaration that the
          principal of all the Debentures shall be due and payable; or
          (iv) consenting to any amendment, modification or termination of the
          Indenture or the Debentures, where such consent shall be required;
          PROVIDED THAT, where a consent or action under the Indenture would
          require the consent or act of the Holders of greater than a majority
          in principal amount of Debentures (a "Super Majority"), the Property
          Trustee may only give such consent or take such action at the
          direction of the Holders of at least the same proportion in
          liquidation amount of the Common Securities which the relevant Super
          Majority represents of the aggregate principal amount of the
          Debentures outstanding.  The Property Trustee shall not revoke any
          action previously authorized or approved by a vote of the Holders of
          the Capital Securities, except by a subsequent vote of the Holders of
          the Capital Securities.  Other than with respect to directing the
          time, method and place of conducting any remedy available 

                                       12
<PAGE>

          to the Property Trustee or the Indenture Trustee as set forth 
          above, the Property Trustee shall not take any action in accordance 
          with the directions of the Holders of the Common Securities under 
          this paragraph unless the Property Trustee has obtained an opinion 
          of tax counsel to the effect that, as a result of such action the 
          Trust will not fail to be classified as a grantor trust for United 
          States federal income tax purposes.  If the Property Trustee fails 
          to enforce its rights, as holder of the Debentures, under the 
          Indenture, any Holder of Common Securities may, institute a legal 
          proceeding directly against the Sponsor, to enforce the Property 
          Trustee's rights, as holder of the Debentures, under the Indenture, 
          without first instituting any legal proceeding against the Property 
          Trustee or any other Person.

          Any approval or direction of Holders of Common Securities may be given
          at a separate meeting of Holders of Common Securities convened for
          such purpose, at a meeting of all of the Holders of Securities in the
          Trust or pursuant to written consent.  The Regular Trustees will cause
          a notice of any meeting at which Holders of Common Securities are
          entitled to vote, or of any matter upon which action by written
          consent of such Holders is to be taken, to be mailed to each Holder of
          record of Common Securities.  Each such notice will include a
          statement setting forth (i) the date of such meeting or the date by
          which such action is to be taken, (ii) a description of any resolution
          proposed for adoption at such meeting on which such Holders are
          entitled to vote or of such matter upon which written consent is
          sought and (iii) instructions for the delivery of proxies or consents.

          No vote or consent of the Holders of the Common Securities will be
          required for the Trust to redeem and cancel Common Securities or to
          distribute the Debentures in accordance with the Declaration and the
          terms of the Securities.

7.  AMENDMENTS TO DECLARATION AND INDENTURE.

     (a)  In addition to any requirements under Section 12.1 of the Declaration,
          if any proposed amendment to the Declaration provides for, or the
          Regular Trustees otherwise propose to effect, (i) any action that
          would adversely affect the powers, preferences or special rights of
          the Securities, whether by way of amendment to the Declaration or
          otherwise, or (ii) the dissolution, winding-up or termination of the
          Trust, other than as described in Section 8.1 of the Declaration, then
          the Holders of 

                                       13
<PAGE>

          outstanding Securities as a class, will be entitled to vote on such 
          amendment or proposal (but not on any other amendment or proposal) 
          and such amendment or proposal shall not be effective except (a) 
          with the approval of the Holders of at least 66-2/3% in liquidation 
          amount of the Securities, voting together as a single class and (b) 
          upon receipt by the Regular Trustees of an opinion of a nationally 
          recognized independent counsel experienced in such matters to the 
          effect that such amendment or the exercise of any power granted to 
          the Regular Trustees in accordance with such amendment will not 
          affect the Trust's status as a grantor trust for United States 
          federal income tax purposes or the Trust's exemption from the 
          status of an "investment company" under the Investment Company Act; 
          PROVIDED, HOWEVER, if any amendment or proposal referred to in 
          clause (i) above would adversely affect only the Capital Securities 
          or only the Common Securities, then only the affected class will be 
          entitled to vote on such amendment or proposal and such amendment 
          or proposal shall not be effective except with the approval of 
          66-2/3% in liquidation amount of such class of Securities.

     (b)  In the event the consent of the Property Trustee as the holder of the
          Debentures is required under the Indenture with respect to any
          amendment, modification or termination of the Indenture or the
          Debentures, the Property Trustee shall request the direction of the
          Holders of the Securities with respect to such amendment, modification
          or termination and shall vote with respect to such amendment,
          modification or termination as directed by a Majority in liquidation
          amount of the Securities voting together as a single class; PROVIDED,
          HOWEVER, that where a consent under the Indenture would require the
          consent of the holders of more than a majority of the aggregate
          principal amount of the Debentures, the Property Trustee may only give
          such consent at the direction of the Holders of at least the same
          proportion in aggregate stated liquidation amount of the Securities;
          PROVIDED, HOWEVER, that the Property Trustee shall not take any action
          in accordance with the directions of the Holders of the Securities
          under this paragraph unless the Property Trustee has obtained an
          opinion of tax counsel to the effect that for the purposes of United
          States federal income tax the Trust will not be classified as other
          than a grantor trust on account of such action.

                                       14
<PAGE>

8.  PRO RATA.

          A reference in these terms of the Securities to any payment,
distribution or treatment as being "Pro Rata" shall mean pro rata to each Holder
of Securities according to the aggregate liquidation amount of the Securities
held by the relevant Holder in relation to the aggregate liquidation amount of
all Securities outstanding unless, on any distribution date or redemption date
an Event of Default under the Declaration has occurred and is continuing, in
which case no payment of any distribution on, or amount payable upon redemption
of, any Common Security, and no other payment on account of the redemption,
liquidation or other acquisition of Common Securities, shall be made unless
payment in full in cash of all accumulated and unpaid Distributions on all
outstanding Capital Securities for all Distribution periods terminating on or
prior thereto, or in the case of payment of the amount payable upon redemption
of the Capital Securities, the full amount of such amount in respect of all
outstanding Capital Securities shall have been made or provided for, and all
funds available to the Property Trustee shall first be applied to the payment in
full in cash of all Distributions on, or the amount payable upon redemption of
Capital Securities then due and payable.

9.  RANKING.

          The Capital Securities rank PARI PASSU with, and payment thereon shall
be made Pro Rata with, the Common Securities except that, where an Event of
Default occurs and is continuing under the Indenture, the rights of Holders of
the Common Securities to payment in respect of Distributions and payments upon
liquidation, redemption and otherwise are subordinated to the rights to payment
of the Holders of the Capital Securities.

10.  ACCEPTANCE OF CAPITAL SECURITIES GUARANTEE AND INDENTURE.

          Each Holder of Capital Securities and Common Securities and each
Capital Security Beneficial Owner, by the acceptance thereof, agrees to the
provisions of the Capital Securities Guarantee, respectively, including the
subordination provisions therein and to the provisions of the Indenture,
including the subordination provisions therein, and which includes, among other
things, provisions relating to certain rights of the Holders of the Capital
Securities all as set forth therein.

11.  NO PREEMPTIVE RIGHTS.

          The Holders of the Securities shall have no preemptive rights to
subscribe for any additional Securities.

                                       15
<PAGE>

12.  MISCELLANEOUS.

          These terms constitute a part of the Declaration.

          The Sponsor will provide a copy of the Declaration, the Capital
Securities Guarantee, and the Indenture to a Capital Security Beneficial Owner
without charge on written request to the Sponsor at its principal place of
business.








                                       16
<PAGE>

                                                                      EXHIBIT A

                        FORM OF RULE 144A GLOBAL SECURITY


          THIS CAPITAL SECURITY IS A RULE 144A GLOBAL SECURITY WITHIN THE 
MEANING OF THE DECLARATION HEREINAFTER REFERRED TO AND IS REGISTERED IN THE 
NAME OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (THE 
"DEPOSITARY"), OR A NOMINEE OF THE DEPOSITARY.  THIS CAPITAL SECURITY IS 
EXCHANGEABLE FOR CAPITAL SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER 
THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES 
DESCRIBED IN THE DECLARATION AND NO TRANSFER OF THIS CAPITAL SECURITY (OTHER 
THAN A TRANSFER OF THIS CAPITAL SECURITY AS A WHOLE BY THE DEPOSITARY TO A 
NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY 
OR ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED 
CIRCUMSTANCES.

          UNLESS THIS CAPITAL SECURITY IS PRESENTED BY AN AUTHORIZED 
REPRESENTATIVE OF THE DEPOSITARY  (55 WATER STREET, NEW YORK, NEW YORK) TO 
THE TRUST OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND 
ANY CAPITAL SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN 
SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE 
DEPOSITARY  (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER 
ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), 
ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY 
PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN 
INTEREST HEREIN.

          THIS CAPITAL SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES 
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS 
OR ANY OTHER APPLICABLE SECURITIES LAW.  NEITHER THIS CAPITAL SECURITY NOR 
ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, 
TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF 
SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT 
TO, SUCH REGISTRATION. 


<PAGE>

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF AGREES 
TO OFFER, SELL OR OTHERWISE TRANSFER THIS CAPITAL SECURITY ONLY (A) TO ZENITH 
NATIONAL INSURANCE CORP. (THE "COMPANY"), (B) PURSUANT TO A REGISTRATION 
STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) SO 
LONG AS THIS CAPITAL SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A 
UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON IT REASONABLY BELIEVES IS 
A "QUALIFIED INSTITUTIONAL BUYER"  (AS DEFINED IN RULE 144A) THAT PURCHASES 
FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO 
WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 
144A, (D) IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 903 OR 904 UNDER 
THE SECURITIES ACT, (E) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED 
BY RULE 144 UNDER THE SECURITIES ACT (IF APPLICABLE) OR (F) PURSUANT TO ANY 
OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE 
SECURITIES ACT, SUBJECT TO THE RIGHT OF THE TRUST AND THE COMPANY PRIOR TO 
ANY SUCH OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (E) OR (F) TO REQUIRE 
THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER 
INFORMATION SATISFACTORY TO EACH OF THEM AND (ii) IN EACH OF CASES (B) 
THROUGH (F) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF 
THE UNITED STATES.  SUCH HOLDER FURTHER AGREES THAT IT WILL DELIVER TO EACH 
PERSON TO WHOM THIS CAPITAL SECURITY IS TRANSFERRED A NOTICE SUBSTANTIALLY TO 
THE EFFECT OF THIS LEGEND.

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF ALSO 
AGREES, REPRESENTS AND WARRANTS THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT 
PLAN SUBJECT TO THE "PROHIBITED TRANSACTIONS" PROVISIONS OF SECTION 406 OF 
THE EMPLOYMENT RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA") 
OR SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED ("THE 
CODE"), AND IS NOT USING THE ASSETS OF ANY SUCH PLAN TO ACQUIRE THIS CAPITAL 
SECURITY OR (ii) THE ACQUISITION AND HOLDING OF THIS CAPITAL SECURITY BY IT 
IS NOT PROHIBITED BY EITHER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE, 
OR IS EXEMPT FROM ANY SUCH PROHIBITION BY APPLICATION OF A STATUTORY, 
REGULATORY OR ADMINISTRATIVE EXEMPTION.

                                      A-2
<PAGE>

          THIS CAPITAL SECURITY WILL BE ISSUED, AND MAY BE TRANSFERRED, ONLY 
IN BLOCKS HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL 
REDEMPTION) OF NOT LESS THAN $100,000 (100 CAPITAL SECURITIES).  ANY 
TRANSFER, SALE OR OTHER DISPOSITION OF THE CAPITAL SECURITIES IN A BLOCK 
HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL REDEMPTION) 
OF LESS THAN $100,000 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT 
WHATSOEVER.  ANY SUCH TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH 
CAPITAL SECURITIES FOR ANY PURPOSE, INCLUDING BUT NOT LIMITED TO THE RECEIPT 
OF DISTRIBUTIONS ON SUCH CAPITAL SECURITIES, AND SUCH TRANSFEREE SHALL BE 
DEEMED TO HAVE NO INTEREST WHATSOEVER IN SUCH CAPITAL SECURITIES.

                                      A-3
<PAGE>

Certificate number                                 Number of Capital Securities
                                                    CUSIP NO.

                  Certificate Evidencing Capital Securities
                                      of
                  ZENITH NATIONAL INSURANCE CAPITAL TRUST I

                          8.55% Capital Securities
              (Liquidation Amount $1,000 per Capital Security)

          ZENITH NATIONAL INSURANCE CAPITAL TRUST I, a statutory business trust
formed under the laws of the State of Delaware (the "Trust"), hereby certifies
that ________________ (the "Holder") is the registered owner of preferred
securities of the Trust representing preferred undivided beneficial interests in
the assets of the Trust designated the 8.55% Capital Securities (Liquidation
Amount $1,000 per Security) (the "Capital Securities").  The Capital Securities
are transferable on the books and records of the Trust, in person or by a duly
authorized attorney, upon surrender of this certificate duly endorsed and in
proper form for transfer.  The designation, rights, privileges, restrictions,
preferences and other terms and provisions of the Capital Securities represented
hereby are in all respects subject to the provisions of the Amended and Restated
Declaration of Trust of the Trust dated as of July 30, 1998, as the same may be
amended from time to time (the "Declaration"), including the designation of the
terms of the Capital Securities as set forth in Annex I to the Declaration. 
Capitalized terms used herein but not defined shall have the meaning given them
in the Declaration.  The Holder is entitled to the benefits of the Capital
Securities Guarantee to the extent provided therein.  The Sponsor will provide a
copy of the Declaration, the Capital Security Guarantee and the Indenture to a
Holder without charge upon written request to the Sponsor at its principal place
of business.

          Upon receipt of this certificate, the Holder is bound by the 
Declaration and is entitled to the benefits thereunder.  By its acceptance of 
this certificate representing Capital Securities or a beneficial interest in 
such Capital Securities, the owner of, and any person that acquires a 
beneficial interest in, such Capital Securities agrees to treat the 
Debentures described in the Declaration as indebtedness and the Capital 
Securities as evidence of indirect beneficial ownership in such indebtedness 
for tax purposes.

                                      A-4
<PAGE>

          IN WITNESS WHEREOF, the Trust has executed this certificate this _____
day of  _____, 1998.

                    ZENITH NATIONAL INSURANCE CAPITAL TRUST I



                    By:________________________________
                          Stanley R. Zax
                          Regular Trustee



                   PROPERTY TRUSTEE'S CERTIFICATE OF AUTHENTICATION

     This is one of the Capital Securities referred to in the within-mentioned
 Declaration.

                    NORWEST BANK MINNESOTA, NATIONAL 
                       ASSOCIATION, as Property Trustee



                    By:__________________________
                          Authorized Signatory



                                      A-5
<PAGE>

                        [FORM OF REVERSE OF SECURITY]


          Distributions payable on each Capital Security will be fixed at a 
rate per annum of 8.55% (the "Coupon Rate") of the liquidation amount of 
$1,000 per Capital Security, such rate being the rate of interest payable on 
the Debentures to be held by the Property Trustee.  Distributions not 
currently made will bear interest thereon compounded semi-annually at the 
Coupon Rate (to the extent permitted by applicable law).  The term 
"Distributions" as used herein includes such cash distributions and any such 
interest payable unless otherwise stated. A Distribution is payable only to 
the extent that payments are made in respect of the Debentures held by the 
Property Trustee and to the extent the Property Trustee has funds legally 
available therefor.  The amount of Distributions payable for any period will 
be computed for any full semi-annual Distribution period on the basis of a 
360-day year of twelve 30-day months, and for any period of less than a full 
calendar month the number of days elapsed in such month.

          Distributions on the Capital Securities will be cumulative, will
accrue from the date of original issuance and will be payable semi-annually in
arrears, on the following dates, which dates correspond to the interest payment
dates on the Debentures: February  1 and August 1 of each year, commencing on
February 1, 1999, except as otherwise described below.  So long as no Event of
Default (or an event which would be an Event of Default with the giving of
required notice or the passage of time) has occurred and is continuing, the
Debenture Issuer has the right under the Indenture to defer payments of interest
by deferring the interest payment period from time to time on the Debentures for
a period not exceeding 10 consecutive semi-annual periods (each a "Deferral
Period") and, as a consequence of such deferral, Distributions will also be
deferred.  Despite such deferral, semi-annual Distributions will continue to
accrue with interest thereon (to the extent permitted by applicable law) at the
Coupon Rate compounded semi-annually during any such Deferral Period.  Prior to
the termination of any such Deferral Period, the Debenture Issuer may further
extend such Deferral Period so long as no Event of Default (or an event which
would be an Event of Default with the giving of required notice or the passage
of time) has occurred and is continuing; PROVIDED THAT such Deferral Period
together with all such previous and further deferrals thereof may not exceed 10
consecutive semi-annual periods or extend beyond the maturity (whether at the
stated maturity or by declaration of acceleration, call for redemption or
otherwise) of the Debentures under the Indenture.  Payments of accrued
Distributions will be payable to Holders as they appear on the books and records
of the Trust on the first record date after the end of the Deferral Period. 
Upon the termination of any Deferral Period and the payment of all amounts then
due, the Debenture Issuer may commence a new Deferral Period, subject to the
above requirements.

          The Capital Securities shall be redeemable as provided in the
Declaration.

                                      A-6
<PAGE>

                                  SCHEDULE I


                          RULE 144A GLOBAL SECURITY

          The initial number of Capital Securities evidenced by this 144A Global
Security is _________.

             CHANGES TO NUMBER OF CAPITAL SECURITIES EVIDENCED
                        BY RULE 144A GLOBAL SECURITY


<TABLE>
<CAPTION>

          Number of Capital Securities
            by which this Rule 144A
            Global Security is to be       Remaining Capital
  Date     Reduced or Increased, and    Securities Represented    Notation Made
            Reason for Reduction or    by this Rule 144A Global         By
                   Increase                    Security
- -------------------------------------------------------------------------------
<S>       <C>                          <C>                        <C>
- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

</TABLE>


                                      A-7
<PAGE>

                                                                      EXHIBIT B


                     FORM OF REGULATION S GLOBAL SECURITY


          THIS CAPITAL SECURITY IS A REGULATION S GLOBAL SECURITY WITHIN THE 
MEANING OF THE DECLARATION HEREINAFTER REFERRED TO AND IS REGISTERED IN THE 
NAME OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (THE 
"DEPOSITARY"), OR A NOMINEE OF THE DEPOSITARY.  THIS CAPITAL SECURITY IS 
EXCHANGEABLE FOR CAPITAL SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER 
THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES 
DESCRIBED IN THE DECLARATION AND NO TRANSFER OF THIS CAPITAL SECURITY (OTHER 
THAN A TRANSFER OF THIS CAPITAL SECURITY AS A WHOLE BY THE DEPOSITARY TO A 
NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY 
OR ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED 
CIRCUMSTANCES.

          UNLESS THIS CAPITAL SECURITY IS PRESENTED BY AN AUTHORIZED 
REPRESENTATIVE OF THE DEPOSITARY  (55 WATER STREET, NEW YORK, NEW YORK) TO 
THE TRUST OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND 
ANY CAPITAL SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN 
SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE 
DEPOSITARY  (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER 
ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), 
ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY 
PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN 
INTEREST HEREIN.

          THIS CAPITAL SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES 
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS 
OR ANY OTHER APPLICABLE SECURITIES LAW.  NEITHER THIS CAPITAL SECURITY NOR 
ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, 
TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF 
SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT 
TO, SUCH REGISTRATION. 

<PAGE>

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF AGREES 
TO OFFER, SELL OR OTHERWISE TRANSFER THIS CAPITAL SECURITY ONLY (A) TO ZENITH 
NATIONAL INSURANCE CORP. (THE "COMPANY"), (B) PURSUANT TO A REGISTRATION 
STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) SO 
LONG AS THIS CAPITAL SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A 
UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON IT REASONABLY BELIEVES IS 
A "QUALIFIED INSTITUTIONAL BUYER"  (AS DEFINED IN RULE 144A) THAT PURCHASES 
FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO 
WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 
144A, (D) IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 903 OR 904 UNDER 
THE SECURITIES ACT, (E) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED 
BY RULE 144 UNDER THE SECURITIES ACT (IF APPLICABLE) OR (F) PURSUANT TO ANY 
OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE 
SECURITIES ACT, SUBJECT TO THE RIGHT OF THE TRUST AND THE COMPANY PRIOR TO 
ANY SUCH OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (E) OR (F) TO REQUIRE 
THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER 
INFORMATION SATISFACTORY TO EACH OF THEM AND (ii) IN EACH OF CASES (B) 
THROUGH (F) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF 
THE UNITED STATES.  SUCH HOLDER FURTHER AGREES THAT IT WILL DELIVER TO EACH 
PERSON TO WHOM THIS CAPITAL SECURITY IS TRANSFERRED A NOTICE SUBSTANTIALLY TO 
THE EFFECT OF THIS LEGEND.

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF ALSO 
AGREES, REPRESENTS AND WARRANTS THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT 
PLAN SUBJECT TO THE "PROHIBITED TRANSACTIONS" PROVISIONS OF SECTION 406 OF 
THE EMPLOYMENT RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA") 
OR SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED ("THE 
CODE"), AND IS NOT USING THE ASSETS OF ANY SUCH PLAN TO ACQUIRE THIS CAPITAL 
SECURITY OR (ii) THE ACQUISITION AND HOLDING OF THIS CAPITAL SECURITY BY IT 
IS NOT PROHIBITED BY EITHER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE, 
OR IS EXEMPT FROM ANY SUCH PROHIBITION BY APPLICATION OF A STATUTORY, 
REGULATORY OR ADMINISTRATIVE EXEMPTION.

                                      B-2
<PAGE>

          THIS CAPITAL SECURITY WILL BE ISSUED, AND MAY BE TRANSFERRED, ONLY 
IN BLOCKS HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL 
REDEMPTION) OF NOT LESS THAN $100,000 (100 CAPITAL SECURITIES).  ANY 
TRANSFER, SALE OR OTHER DISPOSITION OF THE CAPITAL SECURITIES IN A BLOCK 
HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL REDEMPTION) 
OF LESS THAN $100,000 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT 
WHATSOEVER.  ANY SUCH TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH 
CAPITAL SECURITIES FOR ANY PURPOSE, INCLUDING BUT NOT LIMITED TO THE RECEIPT 
OF DISTRIBUTIONS ON SUCH CAPITAL SECURITIES, AND SUCH TRANSFEREE SHALL BE 
DEEMED TO HAVE NO INTEREST WHATSOEVER IN SUCH CAPITAL SECURITIES.

                                      B-3
<PAGE>

Certificate number                                 Number of Capital Securities
                                                    CUSIP NO.

                      Certificate Evidencing Capital Securities
                                          of
                      ZENITH NATIONAL INSURANCE CAPITAL TRUST I

                              8.55% Capital Securities
                  (Liquidation Amount $1,000 per Capital Security)

          ZENITH NATIONAL INSURANCE CAPITAL TRUST I, a statutory business trust
formed under the laws of the State of Delaware (the "Trust"), hereby certifies
that ________________ (the "Holder") is the registered owner of preferred
securities of the Trust representing preferred undivided beneficial interests in
the assets of the Trust designated the 8.55% Capital Securities (Liquidation
Amount $1,000 per Security) (the "Capital Securities").  The Capital Securities
are transferable on the books and records of the Trust, in person or by a duly
authorized attorney, upon surrender of this certificate duly endorsed and in
proper form for transfer.  The designation, rights, privileges, restrictions,
preferences and other terms and provisions of the Capital Securities represented
hereby are in all respects subject to the provisions of the Amended and Restated
Declaration of Trust of the Trust dated as of July 30, 1998, as the same may be
amended from time to time (the "Declaration"), including the designation of the
terms of the Capital Securities as set forth in Annex I to the Declaration. 
Capitalized terms used herein but not defined shall have the meaning given them
in the Declaration.  The Holder is entitled to the benefits of the Capital
Securities Guarantee to the extent provided therein.  The Sponsor will provide a
copy of the Declaration, the Capital Security Guarantee and the Indenture to a
Holder without charge upon written request to the Sponsor at its principal place
of business.

          Upon receipt of this certificate, the Holder is bound by the
Declaration and is entitled to the benefits thereunder.  By its acceptance of
this certificate representing Capital Securities or a beneficial interest in
such Capital Securities, the owner of, and any person that acquires a beneficial
interest in, such Capital Securities agrees to treat the Debentures described in
the Declaration as indebtedness and the Capital Securities as evidence of
indirect beneficial ownership in such indebtedness for tax purposes.

                                      B-4
<PAGE>

          IN WITNESS WHEREOF, the Trust has executed this certificate this _____
day of _______, 1998.

                    ZENITH NATIONAL INSURANCE CAPITAL TRUST I



                    By:________________________________
                          Stanley R. Zax
                          Regular Trustee


                   PROPERTY TRUSTEE'S CERTIFICATE OF AUTHENTICATION

      This is one of the Capital Securities referred to in the within-mentioned
 Declaration.

                    NORWEST BANK MINNESOTA, NATIONAL 
                       ASSOCIATION, as Property Trustee



                    By:__________________________
                          Authorized Signatory






                                      B-5
<PAGE>

                        [FORM OF REVERSE OF SECURITY]


Distributions payable on each Capital Security will be fixed at a rate per 
annum of 8.55% (the "Coupon Rate") of the liquidation amount of $1,000 per 
Capital Security, such rate being the rate of interest payable on the 
Debentures to be held by the Property Trustee.  Distributions not currently 
made will bear interest thereon compounded semi-annually at the Coupon Rate 
(to the extent permitted by applicable law).  The term "Distributions" as 
used herein includes such cash distributions and any such interest payable 
unless otherwise stated. A Distribution is payable only to the extent that 
payments are made in respect of the Debentures held by the Property Trustee 
and to the extent the Property Trustee has funds legally available therefor.  
The amount of Distributions payable for any period will be computed for any 
full semi-annual Distribution period on the basis of a 360-day year of twelve 
30-day months, and for any period of less than a full calendar month the 
number of days elapsed in such month.

          Distributions on the Capital Securities will be cumulative, will 
accrue from the date of original issuance and will be payable semi-annually 
in arrears, on the following dates, which dates correspond to the interest 
payment dates on the Debentures: February 1 and August 1 of each year, 
commencing on February 1, 1999, except as otherwise described below.  So long 
as no Event of Default (or an event which would be an Event of Default with 
the giving of required notice or the passage of time) has occurred and is 
continuing, the Debenture Issuer has the right under the Indenture to defer 
payments of interest by deferring the interest payment period from time to 
time on the Debentures for a period not exceeding 10 consecutive semi-annual 
periods (each a "Deferral Period") and, as a consequence of such deferral, 
Distributions will also be deferred.  Despite such deferral, semi-annual 
Distributions will continue to accrue with interest thereon (to the extent 
permitted by applicable law) at the Coupon Rate compounded semi-annually 
during any such Deferral Period.  Prior to the termination of any such 
Deferral Period, the Debenture Issuer may further extend such Deferral Period 
so long as no Event of Default (or an event which would be an Event of 
Default with the giving of required notice or the passage of time) has 
occurred and is continuing; PROVIDED THAT such Deferral Period together with 
all such previous and further deferrals thereof may not exceed 10 consecutive 
semi-annual periods or extend beyond the maturity (whether at the stated 
maturity or by declaration of acceleration, call for redemption or otherwise) 
of the Debentures under the Indenture.  Payments of accrued Distributions 
will be payable to Holders as they appear on the books and records of the 
Trust on the first record date after the end of the Deferral Period. Upon the 
termination of any Deferral Period and the payment of all amounts then due, 
the Debenture Issuer may commence a new Deferral Period, subject to the above 
requirements.

          The Capital Securities shall be redeemable as provided in the
Declaration.

                                      B-6
<PAGE>

                                  SCHEDULE I


                            REGULATION S GLOBAL SECURITY

          The initial number of Capital Securities evidenced by this
Regulation S Global Security is _________.

                 CHANGES TO NUMBER OF CAPITAL SECURITIES EVIDENCED
                          BY REGULATION S GLOBAL SECURITY

<TABLE>
<CAPTION>

         Number of Capital Securities
            by which this Rule 144A
           Global Security is to be        Remaining Capital
  Date     Reduced or Increased, and    Securities Represented    Notation Made
            Reason for Reduction or    by this Rule 144A Global         By
                   Increase                    Security
- --------------------------------------------------------------------------------
<S>      <C>                           <C>                        <C>
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------


</TABLE>
                                      B-7
<PAGE>

                                                                      EXHIBIT C

                     FORM OF DEFINITIVE CAPITAL SECURITY


          THIS CAPITAL SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES 
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS 
OR ANY OTHER APPLICABLE SECURITIES LAW.  NEITHER THIS CAPITAL SECURITY NOR 
ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, 
TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF 
SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT 
TO, SUCH REGISTRATION. 

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF AGREES 
TO OFFER, SELL OR OTHERWISE TRANSFER THIS CAPITAL SECURITY ONLY (A) TO ZENITH 
NATIONAL INSURANCE CORP. (THE "COMPANY"), (B) PURSUANT TO A REGISTRATION 
STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) SO 
LONG AS THIS CAPITAL SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A 
UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON IT REASONABLY BELIEVES IS 
A "QUALIFIED INSTITUTIONAL BUYER"  (AS DEFINED IN RULE 144A) THAT PURCHASES 
FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO 
WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 
144A, (D) IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 903 OR 904 UNDER 
THE SECURITIES ACT, (E) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED 
BY RULE 144 UNDER THE SECURITIES ACT (IF APPLICABLE) OR (F) PURSUANT TO ANY 
OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE 
SECURITIES ACT, SUBJECT TO THE RIGHT OF THE TRUST AND THE COMPANY PRIOR TO 
ANY SUCH OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (E) OR (F) TO REQUIRE 
THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER 
INFORMATION SATISFACTORY TO EACH OF THEM AND (ii) IN EACH OF CASES (B) 
THROUGH (F) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF 
THE UNITED STATES.  SUCH HOLDER FURTHER AGREES THAT IT WILL DELIVER TO EACH 
PERSON TO WHOM THIS CAPITAL SECURITY IS TRANSFERRED A NOTICE SUBSTANTIALLY TO 
THE EFFECT OF THIS LEGEND.

                                      C-1
<PAGE>

          THE HOLDER OF THIS CAPITAL SECURITY BY ITS ACCEPTANCE HEREOF ALSO 
AGREES, REPRESENTS AND WARRANTS THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT 
PLAN SUBJECT TO THE "PROHIBITED TRANSACTIONS" PROVISIONS OF SECTION 406 OF 
THE EMPLOYMENT RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA") 
OR SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED ("THE 
CODE"), AND IS NOT USING THE ASSETS OF ANY SUCH PLAN TO ACQUIRE THIS CAPITAL 
SECURITY OR (ii) THE ACQUISITION AND HOLDING OF THIS CAPITAL SECURITY BY IT 
IS NOT PROHIBITED BY EITHER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE, 
OR IS EXEMPT FROM ANY SUCH PROHIBITION BY APPLICATION OF A STATUTORY, 
REGULATORY OR ADMINISTRATIVE EXEMPTION.

          THIS CAPITAL SECURITY WILL BE ISSUED, AND MAY BE TRANSFERRED, ONLY 
IN BLOCKS HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL 
REDEMPTION) OF NOT LESS THAN $100,000 (100 CAPITAL SECURITIES).  ANY 
TRANSFER, SALE OR OTHER DISPOSITION OF THE CAPITAL SECURITIES IN A BLOCK 
HAVING A LIQUIDATION AMOUNT (BEFORE GIVING EFFECT TO ANY PARTIAL REDEMPTION) 
OF LESS THAN $100,000 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT 
WHATSOEVER.  ANY SUCH TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH 
CAPITAL SECURITIES FOR ANY PURPOSE, INCLUDING BUT NOT LIMITED TO THE RECEIPT 
OF DISTRIBUTIONS ON SUCH CAPITAL SECURITIES, AND SUCH TRANSFEREE SHALL BE 
DEEMED TO HAVE NO INTEREST WHATSOEVER IN SUCH CAPITAL SECURITIES.

                                      C-2
<PAGE>


Certificate number                                 Number of Capital Securities
                                                    CUSIP NO.

                  Certificate Evidencing Capital Securities
                                      of
                  ZENITH NATIONAL INSURANCE CAPITAL TRUST I

                           8.55% Capital Securities
              (Liquidation Amount $1,000 per Capital Security)

          ZENITH NATIONAL INSURANCE CAPITAL TRUST I, a statutory business 
trust formed under the laws of the State of Delaware (the "Trust"), hereby 
certifies that ________________ (the "Holder") is the registered owner of 
preferred securities of the Trust representing preferred undivided beneficial 
interests in the assets of the Trust designated the 8.55% Capital Securities 
(Liquidation Amount $1,000 per Security) (the "Capital Securities").  The 
Capital Securities are transferable on the books and records of the Trust, in 
person or by a duly authorized attorney, upon surrender of this certificate 
duly endorsed and in proper form for transfer.  The designation, rights, 
privileges, restrictions, preferences and other terms and provisions of the 
Capital Securities represented hereby are in all respects subject to the 
provisions of the Amended and Restated Declaration of Trust of the Trust 
dated as of July 30, 1998, as the same may be amended from time to time (the 
"Declaration"), including the designation of the terms of the Capital 
Securities as set forth in Annex I to the Declaration. Capitalized terms used 
herein but not defined shall have the meaning given them in the Declaration.  
The Holder is entitled to the benefits of the Capital Securities Guarantee to 
the extent provided therein.  The Sponsor will provide a copy of the 
Declaration, the Capital Security Guarantee and the Indenture to a Holder 
without charge upon written request to the Sponsor at its principal place of 
business.

          Upon receipt of this certificate, the Holder is bound by the 
Declaration and is entitled to the benefits thereunder.  By its acceptance of 
this certificate representing Capital Securities or a beneficial interest in 
such Capital Securities, the owner of, and any person that acquires a 
beneficial interest in, such Capital Securities agrees to treat the 
Debentures described in the Declaration as indebtedness and the Capital 
Securities as evidence of indirect beneficial ownership in such indebtedness 
for tax purposes.

                                      C-3
<PAGE>

          IN WITNESS WHEREOF, the Trust has executed this certificate this _____
day of _______, 1998.

                              ZENITH NATIONAL INSURANCE CAPITAL TRUST I



                              By:__________________________
                                   Stanley R. Zax
                                   Regular Trustee


                   PROPERTY TRUSTEE'S CERTIFICATE OF AUTHENTICATION

      This is one of the Capital Securities referred to in the within-mentioned
Declaration.

                              NORWEST BANK MINNESOTA, 
                                NATIONAL ASSOCIATION, as Property Trustee



                              By:__________________________
                                   Authorized Signatory






                                      C-4
<PAGE>

                        [FORM OF REVERSE OF SECURITY]

          Distributions payable on each Capital Security will be fixed at a 
rate per annum of 8.55% (the "Coupon Rate") of the stated liquidation amount 
of $1,000 per Capital Security, such rate being the rate of interest payable 
on the Debentures to be held by the Property Trustee.  Distributions not 
currently made will bear interest thereon compounded semi-annually at the 
Coupon Rate (to the extent permitted by applicable law).  The term 
"Distributions" as used herein includes such cash distributions and any such 
interest payable unless otherwise stated. A Distribution is payable only to 
the extent that payments are made in respect of the Debentures held by the 
Property Trustee and to the extent the Property Trustee has funds legally 
available therefor.  The amount of Distributions payable for any period will 
be computed for any full semi-annual Distribution period on the basis of a 
360-day year of twelve 30-day months, and for any period of less than a full 
calendar month the number of days elapsed in such month.

          Distributions on the Capital Securities will be cumulative, will 
accrue from the date of original issuance and will be payable semi-annually 
in arrears, on the following dates, which dates correspond to the interest 
payment dates on the Debentures: February 1 and August 1 of each year, 
commencing on February 1, 1999, except as otherwise described below.  So long 
as no Event of Default (or an event which would be an Event of Default with 
the giving of required notice or the passage of time) has occurred and is 
continuing, the Debenture Issuer has the right under the Indenture to defer 
payments of interest by deferring the interest payment period from time to 
time on the Debentures for a period not exceeding 10 consecutive semi-annual 
periods (each a "Deferral Period") and, as a consequence of such deferral, 
Distributions will also be deferred.  Despite such deferral, semi-annual 
Distributions will continue to accrue with interest thereon (to the extent 
permitted by applicable law) at the Coupon Rate compounded semi-annually 
during any such Deferral Period.  Prior to the termination of any such 
Deferral Period, the Debenture Issuer may further extend such Deferral Period 
so long as no Event of Default (or an event which would be an Event of 
Default with the giving of required notice or the passage of time) has 
occurred and is continuing; PROVIDED THAT such Deferral Period together with 
all such previous and further deferrals thereof may not exceed 10 consecutive 
semi-annual periods or extend beyond the maturity (whether at the stated 
maturity or by declaration of acceleration, call for redemption or otherwise) 
of the Debentures under the Indenture.  Payments of accrued Distributions 
will be payable to Holders as they appear on the books and records of the 
Trust on the first record date after the end of the Deferral Period. Upon the 
termination of any Deferral period and the payment of all amounts then due, 
the Debenture Issuer may commence a new Deferral Period, subject to the above 
requirements.

          The Capital Securities shall be redeemable as provided in the
Declaration.

                                      C-5
<PAGE>

                              FORM OF ASSIGNMENT

      For value received ____________________ hereby sell(s), assign(s) and
transfer(s) unto______________________________________________________________
______________________________________________________________________________

                      (Please insert social security or other
                    taxpayer identification number of assignee.)

 the within security and hereby irrevocably constitutes and appoints
_______________ attorney to transfer the said security on the books of the
Trust, with full power of substitution in the premises.

          In connection with any transfer of the within security occurring prior
to such date as restrictions on the transfer of such security imposed by the
Securities Act of 1933, as amended (the "Securities Act"), and the rules and
regulations thereunder shall be terminated in accordance with the Declaration,
the undersigned confirms that such security is being transferred:

          / /  To Zenith National Insurance Corp. or a subsidiary thereof; or

          / /  Pursuant to an effective registration statement under the
               Securities Act; or

          / /  Pursuant to and in compliance with Rule 144A under the Securities
               Act;(1) or

          / /  To an Institutional Accredited Investor pursuant to and in
                 compliance with the Securities Act;(2)

          / /  Pursuant to and in compliance with Regulation S under the
                 Securities Act;(1) or

          / /  Pursuant to and in compliance with Rule 144 under the Securities
                 Act;

- --------------------------
    1.   If the transferee is an Institutional Accredited Investor taking
         delivery in the form of a Definitive Capital Securities Certificate,
         the undersigned hereby also delivers the certificate in the form of
         Exhibit E to the Declaration. or

    2.   If the transferee is an Institutional Accredited Investor taking 
         delivery in the form of a Definitive Capital Securities Certificate,
         the undersigned hereby also delivers the certificate in the form of
         Exhibit E to the Declaration.

                                      C-6


<PAGE>

  and unless the box below is checked, the undersigned confirms that such
  security is not being transferred to an "affiliate" of the Trust as defined in
  Rule 144 under the Securities (an "Affiliate"):

          / /  The transferee is an Affiliate of the Trust.

   Dated: 
          -------------------------

                                        --------------------------------------

                                        --------------------------------------
                                                       Signature(s)

                                        Signature(s) must be guaranteed by a
                                        commercial bank or trust company or a
                                        member firm of a major stock exchange.


                                        --------------------------------------
                                                       Signature Guarantee


   NOTICE:  The above signatures of the holder(s) hereof must correspond with
   the name as written upon the face of this Security in every particular,
   without alteration or enlargement or any change whatever.


                                      C-7
<PAGE>

                                                                      EXHIBIT D

Certificate number                                  Number of Common Securities

                    Certificate Evidencing Common Securities
                                      of
                    ZENITH NATIONAL INSURANCE CAPITAL TRUST I

                              Common Securities
                (Liquidation Amount $1,000 per Common Security)

        ZENITH NATIONAL INSURANCE CAPITAL TRUST I, a statutory business trust
formed under the laws of the State of Delaware (the "Trust"), hereby certifies
that Zenith National Insurance Corp., a Delaware corporation (the "Holder"), is
the registered owner of __________ Common Securities of the Trust representing
an undivided beneficial interest in the assets of the Trust and designated the
Common Securities (Liquidation Amount $1,000 per common security) (the "Common
Securities").  Subject to the limitations in the Declaration, the Common
Securities are transferable on the books and records of the Trust, in person or
by a duly authorized attorney, upon surrender of this certificate duly endorsed
and in proper form for transfer.  The designation, rights, privileges,
restrictions, preferences and other terms and provisions of the Common
Securities represented hereby are issued and in all respects be subject to the
provisions of the Amended and Restated Declaration of Trust of the Trust dated
as of July 30, 1998, as the same may be amended from time to time (the
"Declaration"), including the designation of the terms of the Common Securities
as set forth in Annex I to the Declaration.  Capitalized terms used herein but
not defined shall have the meaning given them in the Declaration.  The Sponsor
will provide a copy of the Declaration and the Indenture (including any
supplemental indenture) to a Holder without charge upon written request to the
Sponsor at its principal place of business.

        Upon receipt of this certificate, the Holder is bound by the
Declaration and is entitled to the benefits thereunder.  By its acceptance of
this certificate representing Common Securities or a beneficial interest in such
Common Securities, the owner of, and any person that acquires a beneficial
interest in, such Common Securities agrees to treat the Debentures described in
the Declaration as indebtedness and the Common Securities as evidence of
indirect beneficial ownership in such indebtedness for tax purposes.

<PAGE>

        IN WITNESS WHEREOF, the Trust has executed this certificate this _____
day of _______, 1998.



                            By:___________________________
                                  Stanley R. Zax
                                  Regular Trustee


                   PROPERTY TRUSTEE'S CERTIFICATE OF AUTHENTICATION

      This is one of the Capital Securities referred to in the within-mentioned
 Declaration.

                              NORWEST BANK MINNESOTA, NATIONAL 
                               ASSOCIATION, as Property Trustee



                              By:___________________________
                                    Authorized Signatory




                                      D-2
<PAGE>

                         [FORM OF REVERSE OF SECURITY]

        Distributions payable on each Common Security will be fixed at a rate 
per annum of 8.55% (the "Coupon Rate") of the liquidation amount of $1,000 
per Common Security, such rate being the rate of interest payable on the 
Debentures to be held by the Property Trustee.  Distributions not currently 
made will bear interest thereon compounded semi-annually at the Coupon Rate 
(to the extent permitted by applicable law).  The term "Distributions" as 
used herein includes such cash distributions and any such interest payable 
unless otherwise stated. A Distribution is payable only to the extent that 
payments are made in respect of the Debentures held by the Property Trustee 
and to the extent the Property Trustee has funds legally available therefor.  
The amount of Distributions payable for any period will be computed for any 
full semi-annual Distribution period on the basis of a 360-day year of twelve 
30-day months, and for any period of less than a full calendar month the 
number of days elapsed in such month.

        Distributions on the Common Securities will be cumulative, will 
accrue from the date of original issuance and will be payable semi-annually 
in arrears, on the following dates, which dates correspond to the interest 
payment dates on the Debentures: February 1 and August 1 of each year, 
commencing on February 1, 1999, except as otherwise described below.  So long 
as no Event of Default (or an event which would be an Event of Default with 
the giving of required notice or the passage of time) has occurred and is 
continuing, the Debenture Issuer has the right under the Indenture to defer 
payments of interest by deferring the interest payment period from time to 
time on the Debentures for a period not exceeding 10 consecutive periods 
(each a "Deferral Period") and, as a consequence of such deferral, 
Distributions will also be deferred.  Despite such deferral, semi-annual 
Distributions will continue to accrue with interest thereon (to the extent 
permitted by applicable law) at the Coupon Rate compounded semi-annually 
during any such Deferral Period.  Prior to the termination of any such 
Deferral Period, the Debenture Issuer may further extend such Deferral Period 
so long as no Event of Default (or an event which would be an Event of 
Default with the giving of required notice or the passage of time) has 
occurred and is continuing; PROVIDED THAT such Deferral Period together with 
all such previous and further deferrals thereof may not exceed 10 consecutive 
semi-annual periods or extend beyond the maturity (whether at the stated 
maturity or by declaration of acceleration, call for redemption or otherwise) 
of the Debentures under the Indenture.  Payments of accrued Distributions 
will be payable to Holders as they appear on the books and records of the 
Trust on the first record date after the end of the Deferral Period.  Upon 
the termination of any Deferral Period and the payment of all amounts then 
due, the Debenture Issuer may commence a new Deferral Period, subject to the 
above requirements.

        The Common Securities shall be redeemable as provided in the
Declaration.

                                      D-3

<PAGE>

                                                                      EXHIBIT E

                         FORM OF LETTER TO BE DELIVERED
                     BY INSTITUTIONAL ACCREDITED INVESTORS


Zenith National Insurance Corp.
21255 Califa Street
Woodland Hills, CA 91367-5021

Zenith National Insurance Capital Trust I
21255 Califa Street
Woodland Hills, CA 91367-5021

Ladies and Gentlemen:

       We understand that the 8.55 % Capital Securities, Liquidation Amount 
$1,000 per Capital Security (the "Capital Securities"), of Zenith National 
Insurance Capital Trust I, a Delaware business trust (including the guarantee 
(the "Guarantee") of Zenith National Insurance Corp. ("Zenith") executed in 
connection therewith), and the 8.55% Subordinated Deferrable Interest 
Debentures due 2028 of Zenith (the "Debentures" and, together with the 
Capital Securities and the Guarantee, the "Securities") are being offered in 
a transaction not involving any public offering within the United States 
within the meaning of the Securities Act of 1933, as amended (the "Securities 
Act"), and that the Securities have not been registered under the Securities 
Act, and we agree, on our own behalf and on behalf of each account for which 
we acquire any Capital Securities, that if, prior to the expiration of the 
holding period applicable to sales of any Security under Rule 144(k) under 
the Securities Act, we decide to offer, resell or otherwise transfer such 
Security, such Security may be offered, resold or otherwise transferred only 
(i) to Zenith or a subsidiary thereof, (ii) pursuant to an effective 
registration statement under the Securities Act, (iii) to a person who is a 
"qualified institutional buyer" (as defined in Rule 144A under the Securities 
Act) in compliance with Rule 144A, (iv) outside the United States in 
compliance with Rule 904 under the Securities Act or (v) pursuant to the 
exemption from registration provided by Rule 144 under the Securities Act (if 
available) and (vi) in each case, in accordance with any applicable 
securities laws of the states of the United States or any other applicable 
jurisdiction and in accordance with the legends set forth on the Capital 
Securities and the Debentures.  We further agree to provide any person 
purchasing any of the Capital Securities or Debentures from us a notice 
advising such purchaser that resales of such Securities are restricted as 
stated herein. We understand that any Capital Securities will bear a legend 
reflecting the substance of this paragraph.

<PAGE>

        We confirm that:

        (A)  we are an "accredited investor" within the meaning of Rule
     501(a)(1), (2) or (3) under the Securities Act or an entity in which all of
     the equity owners are accredited investors within the meaning of Rule
     501(a)(l), (2) and (3) under the Securities Act (an "Institutional
     Accredited Investor");

        (B)  (A) any purchase of Capital Securities by us will be for our own
     account or for the account of one or more other Institutional Accredited
     Investors or as fiduciary for the account of one or more trusts, each of
     which is an "accredited investor" within the meaning of Rule 501(a)(7)
     under the Securities Act and for each of which we exercise sole investment
     discretion or (B) we are a "bank," within the meaning of Section 3(a)(2) of
     the Securities Act, or a "savings and loan association" or other
     institution described in Section 3(a)(5)(A) of the Securities Act that is
     acquiring Capital Securities as fiduciary for the account of one or more
     institutions for which we exercise sole investment discretion;

        (C)  in the event that we purchase any Capital Securities, we will
     acquire Capital Securities having a liquidation amount (before giving
     effect to any partial redemption) of not less than $100,000 for our own
     account or for any separate account for which we are acting;

        (D)  we have such knowledge and experience in financial and business
     matters that we are capable of evaluating the merits and risks of an
     investment in the Capital Securities;

        (E)  we are not acquiring Capital Securities with a view to resale or
     distribution thereof or with any present intention of offering or selling
     Capital Securities, except as permitted above; provided that the
     disposition of our property and property of any accounts for which we are
     acting as fiduciary shall remain at all times within our control; and

        (F)  we have had access to such financial and other information and
     have been afforded the opportunity to ask such questions of representatives
     of Zenith and receive answers thereto, as we deem necessary in connection
     with our decision to purchase Capital Securities.

        We acknowledge that you and others, including without limitation,
Credit Suisse First Boston Corporation, BancAmerica Robertson Stephens and
Donaldson, Lufkin & Jenrette Securities Corporation, will rely upon our
confirmations, acknowledgments and 

                                      E-2
<PAGE>

agreements set forth herein, and we agree to notify you promptly in writing 
if any of our representations or warranties herein ceases to be accurate and 
complete.

        THIS LETTER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICTS OF LAWS
PRINCIPLES.


                                           -----------------------------
                                           (Name of Purchaser)


                              By: 
                                 ---------------------------------------

                              Name:
                                   -------------------------------------

                              Title:
                                    ------------------------------------

                              Address:
                                      ----------------------------------


Dated:
      ---------------------




                                      E-3
<PAGE>

                                                                      EXHIBIT F

                        FORM OF TRANSFER CERTIFICATE--
                 REGULATION S GLOBAL SECURITY OR INSTITUTIONAL
            ACCREDITED INVESTORS DEFINITIVE TO 144A GLOBAL SECURITY


Norwest Bank Minnesota, National Association
Sixth & Marquette
Minneapolis, Minnesota  55479-0069
Attention:  Corporate Trust Administration

                            ZENITH NATIONAL INSURANCE
                        CAPITAL TRUST I CAPITAL SECURITIES

        Reference is hereby made to the Amended and Restated Declaration of
Trust, dated as of  July 30, 1998 (the "Declaration"), among Zenith National
Insurance Corp., Norwest Bank Minnesota, National Association, as Property
Trustee, Wilmington Trust Company, as Delaware Trustee, the Regular Trustees
named therein and the holders, from time to time, of undivided beneficial
interests in the assets of Zenith National Insurance Capital Trust I.
Capitalized terms used but not defined herein shall have the meanings given to
them in the Declaration.

        This letter relates to ___________________ Capital Securities which
are evidenced by (I) a Regulation S Global Security (CUSIP No. ___________) and
held with the Depositary indirectly or (II) a Definitive Capital Security
Certificate held directly, in either case in the name of [insert name of
transferor] (the "Transferor").

        The Transferor has requested a transfer of such beneficial interest in
such Capital Securities to a Person that will take delivery thereof in a
transaction effected pursuant to and in accordance with Rule 144A under the
United States Securities Act of 1933, as amended (the "Securities Act"), and,
accordingly, the Transferor does hereby certify that (i) the Transferor's
interest in such Capital Securities is being transferred in accordance with the
transfer restrictions set forth in the Declaration; and (ii) the transferee is a
person who the Transferor reasonably believes is a "qualified institutional
buyer" within the meaning of Rule 144A under the Securities Act, purchasing for
its own account or the account of a qualified institutional buyer in a
transaction meeting the requirements of Rule 144A, in accordance with all
applicable securities laws of the states of the United States and other
jurisdictions.

        You, the Trust and each of Credit Suisse First Boston Corporation,
BancAmerica Robertson Stephens and Donaldson, Lufkin & Jenrette Securities
Corporation are entitled 

<PAGE>

to rely upon this letter and are irrevocably authorized
to produce this letter or a copy hereof to any interested party in any
administrative or legal proceeding or official inquiry with respect to the
matters covered hereby.


 Dated:
       -----------------------


                                                [Insert Name of Transferor]


                                                By:
                                                     ------------------------
                                                     Name:
                                                     Title:

                                                (If the registered owner is a
                                                corporation, partnership or
                                                fiduciary, the title of the
                                                Person signing on behalf of
                                                such registered owner must be
                                                stated.)





                                      F-2
<PAGE>

                                                                      EXHIBIT G

                          FORM OF TRANSFER CERTIFICATE--
                144A GLOBAL SECURITY OR INSTITUTIONAL ACCREDITED 
              INVESTORS DEFINITIVE TO REGULATION S GLOBAL SECURITY


Norwest Bank Minnesota, National Association
Sixth & Marquette
Minneapolis, Minnesota  55479-0069
Attention:  Corporate Trust Administration

                           ZENITH NATIONAL INSURANCE 
                      CAPITAL TRUST I CAPITAL SECURITIES

        Reference is hereby made to the Amended and Restated Declaration of
Trust, dated as of July 30, 1998 (the "Declaration"), among Zenith National
Insurance Corp., Norwest Bank Minnesota, National Association, as Property
Trustee, Wilmington Trust Company, as Delaware Trustee, the Regular Trustees
named therein and the holders, from time to time, of undivided beneficial
interests in the assets of Zenith National Insurance Capital Trust I. 
Capitalized terms used but not defined herein shall have the meanings given to
them in the Declaration.

        This letter relates to _______________________ Capital Securities
which are evidenced by (I) a 144A Global Security (CUSIP No. _______) and held
indirectly with the Depositary or (II) a Definitive Capital Security Certificate
held directly, in either case, in the name of [insert name of transferor] (the
"Transferor").

        The Transferor has requested a transfer of such beneficial interest in
such Capital Securities to a Person that will take delivery thereof in a
transaction effected pursuant to and in accordance with Rule 904 under the
United States Securities Act of 1933, as amended (the "Securities Act"), and,
accordingly, the Transferor does hereby further certify that the Transferor's
interest in such Capital Securities is being transferred in accordance with the
transfer restrictions set forth in the Declaration and that:

        The offer of such Capital Securities was not made to a person in the
United States;

        (A)  either:

<PAGE>

             (i)  at the time the buy order was originated, the transferee was
          outside the United States or the Transferor and any person acting on
          its behalf reasonably believed that the transferee was outside the
          United States, or

             (ii) the transaction was executed in, or through the facilities
          of a designated offshore securities market and neither the Transferor
          nor any person acting on its behalf knows that the transaction was
          pre-arranged with a buyer in the United States;

        (B)  no directed selling efforts have been made in contravention of
the requirements of 904(b) of Regulation S, as applicable;

        (C)  the transaction is not part of a plan or scheme to evade the
registration requirements of the Securities Act; and

        (D)  we have advised the transferee of the transfer restrictions
applicable to such  Capital Securities.

        You, the Trust and each of Credit Suisse First Boston Corporation,
BancAmerica Robertson Stephens and Donaldson, Lufkin & Jenrette Securities
Corporation are entitled to rely upon this letter and are irrevocably authorized
to produce this letter or a copy hereof to any interested party in any
administrative or legal proceeding or official inquiry with respect to the
matters covered hereby.  Terms used in this certificate and not otherwise
defined herein or in the Declaration have the meanings set forth in Regulation S
under the Securities Act.

 Dated:
       ----------------------


                                           [Insert Name of Transferor]


                                           By:  
                                                ----------------------------
                                                Name:
                                                Title:

                                           (If the registered owner is a
                                           corporation, partnership or
                                           fiduciary, the title of the Person
                                           signing on behalf of such
                                           registered owner must be stated.)







                                      G-2

<PAGE>
                                    $75,000,000
                           ZENITH NATIONAL INSURANCE CORP.
                      ZENITH NATIONAL INSURANCE CAPITAL TRUST I

                               8.55% CAPITAL SECURITIES
                   (LIQUIDATION AMOUNT $1,000 PER CAPITAL SECURITY)

                                  PURCHASE AGREEMENT

                                                                  July 27, 1998


CREDIT SUISSE FIRST BOSTON CORPORATION
BANCAMERICA ROBERTSON STEPHENS
DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION
     c/o Credit Suisse First Boston Corporation
     Eleven Madison Avenue
     New York, N.Y. 10010-3629


Ladies & Gentlemen:

     1.  INTRODUCTORY. Zenith National Insurance Capital Trust I, a statutory
business trust organized under the laws of Delaware (the "Trust"), and Zenith
National Insurance Corp., a Delaware corporation, as sponsor of the Trust and as
Guarantor (the "Company"), propose that the Trust issue and sell $75,000,000
aggregate liquidation 

<PAGE>

amount of the Trust's 8.55% Capital Securities (Liquidation Amount $1,000 per 
Capital Security) (the "Offered Securities") as set forth below, guaranteed 
on a subordinated basis by the Company as to the payment of distributions, 
and as to payments on liquidation or redemption, to the extent set forth in a 
Capital Securities Guarantee Agreement (the "Guarantee") between the Company 
and Norwest Bank Minnesota, National Association, as trustee (the "Guarantee 
Trustee").  The Trust is to purchase 8.55% Subordinated Deferrable Interest 
Debentures Due 2028 (the "Subordinated Debentures") of the Company to be 
issued pursuant to an Indenture (the "Indenture") between the Company and 
Norwest Bank Minnesota, National Association, as trustee (the "Indenture 
Trustee").  The Trust will purchase these Subordinated Debentures using the 
proceeds from the Offered Securities and with an aggregate of $2,320,000 from 
the proceeds of the issuance and sale of its common securities (the "Common 
Securities") to the Company.  This Purchase Agreement, as amended, 
supplemented or modified from time to time is referred to herein as "this 
Agreement."  Credit Suisse First Boston Corporation, BancAmerica Robertson 
Stephens and Donaldson, Lufkin & Jenrette Securities Corporation are 
collectively referred to in this Agreement as the "Purchasers."

          Each of the Trust and the Company jointly and severally hereby 
agrees with the several Purchasers that:

     2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND THE TRUST.  Each 
of the Company and the Trust represents and warrants to, and agrees with, the 
several Purchasers that:

          (a)  A preliminary confidential offering circular and a 
confidential offering circular relating to the Offered Securities to be 
offered by the Purchasers have been prepared by the Company. Such preliminary 
confidential offering circular and confidential offering circular, including 
the Exchange Act Reports (as defined below) incorporated by reference 
therein, as supplemented as of the date of this Agreement and any other 
document approved by the Company for use in connection with the contemplated 
resale of the Offered Securities are hereinafter collectively referred to as 
the "Offering Document."  The Offering Document does not include any untrue 
statement of a material fact or omit to state any material fact necessary in 
order to make the statements therein, in the light of the circumstances under 
which they were made, not misleading. The preceding sentence does not apply 
to statements in or omissions from the Offering Document based upon written 
information furnished to the Company by any Purchaser through Credit Suisse 
First Boston Corporation ("CSFBC") specifically for use therein, it being 
understood and agreed that the only such information is that described as 
such in Section 7(b) hereof.  Except as disclosed in the

                                       2
<PAGE>

Offering Document, the Company's Annual Report on Form 10-K most recently 
filed with the Securities and Exchange Commission (the "Commission") and all 
subsequent reports (collectively, the "Exchange Act Reports") which have been 
filed by the Company with the Commission or sent to stockholders pursuant to 
the Securities Exchange Act of 1934, as amended (the "Exchange Act") do not 
include any untrue statement of a material fact or omit to state any material 
fact necessary to make the statements therein, in the light of the 
circumstances under which they were made, not misleading. Such documents, 
when they were filed with the Commission, conformed in all material respects 
to the requirements of the Exchange Act and the rules and regulations of the 
Commission thereunder.

          (b)  The Company has been duly incorporated and is an existing 
corporation in good standing under the laws of the State of Delaware, with 
corporate power and authority to own its properties and conduct its business 
as described in the Offering Document; and the Company is duly qualified to 
do business as a foreign corporation in good standing in all other 
jurisdictions in which its ownership or lease of property or the conduct of 
its business requires such qualification, except to the extent that the 
failure to so qualify or be in good standing would not have a material 
adverse effect on (i) the condition (financial or other), business, 
properties or results of operations of the Company and its subsidiaries taken 
as a whole, (ii) the issuance or validity of the Offered Securities, (iii) 
the consummation of any of the transactions contemplated by this Agreement or 
(iv) the sale of the Offered Securities (a "Material Adverse Effect").

          (c)  Each significant subsidiary (as such term is defined in Rule 
1-02 of Regulation S-X ("Regulation S-X") under the Securities Act of 1933, 
as amended (the "Securities Act")) of the Company has been duly incorporated 
and is an existing corporation in good standing under the laws of the 
jurisdiction of its incorporation, with corporate power and authority to own 
its properties and conduct its business as described in the Offering 
Document; and each subsidiary of the Company is duly qualified to do business 
as a foreign corporation in good standing in all other jurisdictions in which 
its ownership or lease of property or the conduct of its business requires 
such qualification, except to the extent that the failure to so qualify or be 
in good standing would not have a Material Adverse Effect; and all of the 
issued and outstanding capital stock of each subsidiary of the Company has 
been duly authorized and validly issued and is fully paid and nonassessable 
and is owned (directly or through subsidiaries) by the Company free from 
liens, claims, encumbrances and defects.

          (d)  The Offered Securities have been duly authorized in accordance
with the Trust Agreement (as defined below) and, when the Offered Securities
have 

                                       3
<PAGE>

been delivered and paid for in accordance with this Agreement on the Closing 
Date (as defined below), such Offered Securities will be validly issued and 
fully paid and will represent nonassessable beneficial interests in the Trust 
and will conform to the description thereof contained in the Offering 
Document, and the holders of the Offered Securities (the "Securityholders"), 
and the Company, as the holder of the Common Securities, will have no 
preemptive rights with respect to the Offered Securities; the Offered 
Securities will have the rights set forth in the Amended and Restated 
Declaration of Trust, dated as of the Closing Date, among the Company, 
Wilmington Trust Company, as "Delaware Trustee," Norwest Bank Minnesota, 
National Association, as "Property Trustee" and the Regular Trustees named 
therein (together with the Delaware Trustee and the Property Trustee, the 
"Trustees") (the "Trust Agreement"), and the terms of the Offered Securities 
are valid and binding on the Trust.

          (e)  The Common Securities have been duly authorized by the Trust 
Agreement and, when the Common Securities have been delivered by the Trust 
and paid for by the Company as described in the Offering Document, such 
Common Securities will be validly issued, fully paid and nonassessable and 
will conform in all material respects to the description thereof contained in 
the Offering Document; and the holders of the Common Securities and the 
Securityholders have no and will have no preemptive rights with respect to 
the Common Securities; and on the Closing Date, all of the issued and 
outstanding Common Securities of the Trust will be directly owned by the 
Company free and clear of any security interest, mortgage, pledge or lien, 
encumbrance or claim.

          (f)  The Trust Agreement has been duly authorized by the Company 
and, as of the Closing Date, will have been duly executed and delivered by 
the Company and the Regular Trustees, and assuming due authorization, 
execution and delivery of the Trust Agreement by the Trustees, the Trust 
Agreement will, as of the Closing Date, be a valid and binding obligation of 
the Company, enforceable against the Company in accordance with its terms, 
except to the extent that enforcement thereof may be limited by bankruptcy, 
insolvency, fraudulent conveyance, reorganization or similar laws affecting 
creditors' rights generally (regardless of whether enforcement is considered 
in a proceeding at law or in equity) (collectively, the "Enforceability 
Exceptions").

          (g)  The Guarantee has been duly authorized by the Company and, as 
of the Closing Date, will have been duly executed and delivered by the 
Company and will constitute a valid and binding obligation of the Company, 
enforceable against the 

                                       4
<PAGE>

Company in accordance with its terms, except to the extent that
enforcement thereof may be limited by the Enforceability Exceptions.

          (h)  The Indenture has been duly authorized by the Company and, as 
of the Closing Date, will have been duly executed and delivered by the 
Company and will constitute a valid and binding obligation of the Company, 
enforceable against the Company in accordance with its terms, except to the 
extent that enforcement thereof may be limited by the Enforceability 
Exceptions.

          (i)  The Subordinated Debentures have been duly authorized by the 
Company and, as of the Closing Date, will have been duly executed by the 
Company and, when authenticated in the manner provided for in the Indenture 
and delivered against payment therefor as described in the Offering Document, 
will constitute valid and binding obligations of the Company, enforceable 
against the Company in accordance with their terms, except to the extent that 
enforcement thereof may be limited by the Enforceability Exceptions; and the 
Subordinated Debentures will be in the form contemplated by, and entitled to 
the benefits of, the Indenture.

          (j)  The Guarantee, the Trust Agreement, the Indenture 
(collectively, the "Company Agreements") and the Subordinated Debentures will 
conform in all material respects to the descriptions thereof in the Offering 
Document.

          (k)  The offer and sale of the Offered Securities in the manner 
contemplated by this Agreement will be exempt from the registration 
requirements of the Securities Act by reason of Section 4(2) thereof and Rule 
144A and Regulation S thereunder ("Regulation S"); and it is not necessary to 
qualify the Company Agreements under the Trust Indenture Act of 1939, as 
amended (the "TIA").

          (l)  The Trust has been duly created and is validly existing as a 
statutory business trust in good standing under the Business Trust Act of the 
State of Delaware ("Delaware Business Trust Act") with the power and 
authority to own its property and conduct its business as described in the 
Offering Document, and has conducted and will conduct no business other than 
the transactions contemplated by this Agreement and as described in the 
Offering Document; the Trust is not a party to or bound by any agreement or 
instrument other than this Agreement, the Trust Agreement as in effect on the 
Closing Date and the agreements and instruments contemplated by the Trust 
Agreement as in effect on the Closing Date and the Offering Document; the 
Trust has no liabilities or obligations other than those arising out of the 
transactions contemplated by the Trust Agreement as in effect on the Closing 
Date, this Agreement 

                                       5
<PAGE>

or described in the Offering Document; and the Trust is not a party to or 
subject to any action, suit or proceeding of any nature.

          (m)  Except as disclosed in the Offering Document, there are no 
contracts, agreements or understandings between the Trust or the Company and 
any person that would give rise to a valid claim against the Trust or the 
Company or any Purchaser for a brokerage commission, finder's fee or other 
like payment in connection with this offering.

          (n)  No consent, approval, or order of, or filing with, any 
governmental agency or body or court is required for the consummation of the 
transactions contemplated by this Agreement in connection with the issuance 
and sale of the Offered Securities by the Company and the Trust, except such 
as may be required under foreign or state securities laws (including 
insurance securities laws).

          (o)  This Agreement has been duly authorized, executed and 
delivered by each of the Trust and the Company.

          (p)  The execution, delivery and performance of this Agreement, and 
the issuance and sale of the Offered Securities and the Common Securities by 
the Trust, the purchase of the Subordinated Debentures by the Trust and the 
compliance by the Trust with all of the terms and provisions of this 
Agreement, will not result in a breach or violation of any of the terms and 
provisions of, or constitute a default under, any statute, rule, regulation 
or order of any governmental agency or body or court, domestic or foreign, 
having jurisdiction over the Trust or any of its properties, or any agreement 
or instrument to which the Trust is a party or by which the Trust is bound or 
to which any of the properties of the Trust is subject, or the organizational 
documents of the Trust, in each case, except for such breaches, violations or 
defaults as would not have a Material Adverse Effect; and the Trust has full 
power and authority to authorize, issue and sell the Offered Securities and 
the Common Securities, to purchase the Subordinated Debentures and to 
consummate the transactions contemplated by this Agreement and the Trust 
Agreement, respectively.

          (q)  The execution, delivery and performance of this Agreement and 
the Company Agreements, the issuance by the Company of the Guarantee and the 
Subordinated Debentures, and compliance by the Company with all of the terms 
and provisions of this Agreement and the Company Agreements, will not result 
in a breach or violation of any of the terms and provisions of, or constitute 
a default under, any statute, rule, regulation or order of any governmental 
agency or body or court, domestic or foreign, having jurisdiction over the 
Company or any of its subsidiaries or 

                                       6
<PAGE>

any of their properties, or any agreement or instrument to which the Company 
or any such subsidiary is a party or by which the Company or any such 
subsidiary is bound or to which any of the properties of the Company or any 
such subsidiary is subject, or the certificate of incorporation, as amended, 
or the bylaws of the Company or the articles or amended articles of 
incorporation and code of regulations or bylaws, as the case may be, of any 
such subsidiary, in each case, except for such breaches, violations or 
defaults as would not have a Material Adverse Effect; and the Company has 
full corporate power and authority to authorize and issue the Guarantee and 
the Subordinated Debentures and to consummate the transactions contemplated 
by this Agreement and the Company Agreements.

          (r)  Except as disclosed in the Offering Document, the Trust, the 
Company and each of the subsidiaries of the Company have good and marketable 
title to all real property and all other property and assets owned by them, 
in each case free from liens, encumbrances, claims and defects, except where 
the failure to possess such title would not have a Material Adverse Effect; 
and except as disclosed in the Offering Document, the Trust, the Company and 
each of the subsidiaries of the Company hold any leased real or personal 
property under valid and enforceable leases, except where the failure to hold 
such property under such leases would not have a Material Adverse Effect.

          (s)  The Company and its subsidiaries own, possess or can acquire 
on reasonable terms, adequate trademarks, service marks, trade names and 
other rights to inventions, know-how, patents, copyrights, confidential 
information and other intellectual property (collectively, "intellectual 
property rights") necessary to conduct the business now operated by them, or 
presently employed by them, except where the failure to own or possess such 
intellectual property rights or where the inability to acquire such 
intellectual property rights on reasonable terms would not have a Material 
Adverse Effect, and have not received any notice of infringement of or 
conflict with asserted rights of others with respect to any intellectual 
property rights that, if determined adversely to the Company or any of its 
subsidiaries, would individually or in the aggregate have a Material Adverse 
Effect.

          (t)  The Trust, Company and each of the subsidiaries of the Company 
hold all licenses, certificates and permits from governmental authorities 
(including, without limitation, insurance licenses from the Insurance 
Departments of the various states in which the subsidiaries write insurance 
business (the "Insurance Licenses")) which are necessary to the conduct of 
their respective businesses, except where the failure to hold such licenses, 
certificates or permits would not have a Material Adverse Effect; the 
Company's insurance subsidiaries have fulfilled and performed all 

                                       7
<PAGE>

obligations necessary to maintain their respective Insurance Licenses, except 
where the failure to perform such obligations would not have a Material 
Adverse Effect; and no event or events have occurred which may be reasonably 
expected to result in any impairment, modification, termination or revocation 
of such Insurance Licenses which individually or in the aggregate would have 
a Material Adverse Effect.

          (u)  Except as disclosed in the Offering Document, neither the 
Trust, the Company nor any of the subsidiaries of the Company is in violation 
of any statute, rule, regulation, decision or order of any governmental 
agency or body or court, domestic or foreign, relating to the use, disposal 
or release of hazardous or toxic substances or relating to the protection or 
restoration of the environment or human exposure to hazardous or toxic 
substances (collectively, "environmental laws"), owns or operates any real 
property contaminated with any substance that is subject to any environmental 
laws, is liable for any off-site disposal or contamination pursuant to any 
environmental laws, or is subject to any claim relating to any environmental 
laws, which violation, contamination, liability or claim would individually 
or in the aggregate have a Material Adverse Effect; and to the Trust's or the 
Company's knowledge, there is no pending investigation which might lead to 
such a claim.

          (v)  Except as disclosed in the Offering Document, there are no 
pending actions, suits or proceedings (including, without limitation, any 
proceeding to revoke or deny renewal of any Insurance License) against or 
affecting the Trust, the Company, any of the subsidiaries of the Company or 
any of their respective properties that, if determined adversely to the Trust 
or Company or any of the subsidiaries of the Company, would individually or 
in the aggregate have a Material Adverse Effect; and no such actions, suits 
or proceedings (including, without limitation, any proceeding to revoke or 
deny renewal of any Insurance License) are, to the Trust's or the Company's 
knowledge, threatened or contemplated.

          (w)  The consolidated financial statements and the notes thereto 
included in the Offering Document present fairly in all material respects, 
the financial position of the Company and its consolidated subsidiaries as of 
the dates shown and their results of operations and cash flows for the 
periods shown, and, except as otherwise disclosed in the Offering Document as 
being prepared in accordance with the Statutory Accounting Practices (as 
hereinafter defined), such financial statements have been prepared in 
conformity with the generally accepted accounting principles in the United 
States applied on a consistent basis; and the assumptions used in preparing 
the pro forma financial statements included in the Offering Document provide 
a reasonable basis for presenting the significant effects directly 
attributable to the transactions or events described therein, the related pro 
forma adjustments give appropriate effect to 

                                       8
<PAGE>

those assumptions, and the pro forma columns therein reflect the proper 
application of those adjustments in the corresponding historical financial 
statement amounts, provided, however, that the Company makes no 
representations and warranties with respect to, and specifically disclaims 
any responsibility for the accuracy or completeness of, any pro forma 
financial data that are based upon or derived from RISCORP Inc.'s 
consolidated financial statements.

          (x)  Except as disclosed in the Offering Document, since the date 
of the latest audited financial statements included in the Offering Document 
there has been no change, nor any development or event involving a 
prospective change, which has had, or would be reasonably be expected to 
have, a Material Adverse Effect, and, except as disclosed in or contemplated 
by the Offering Document, there has been no dividend or distribution of any 
kind declared, paid or made by the Trust or the Company on any class of its 
capital stock.

          (y)  Neither the Company nor the Trust is an open-end investment 
company, unit investment trust or face-amount certificate company that is or 
is required to be registered under Section 8 of the United States Investment 
Company Act of 1940 (the "1940 Act") ; and neither the Company nor the Trust 
is and, after giving effect to the offering and sale of the Offered 
Securities and the application of the proceeds thereof as described in the 
Offering Document, will be an "investment company" as defined in the 1940 Act.

          (z)  No securities of the same class (within the meaning of Rule 
144A(d)(3) under the Securities Act) as the Offered Securities are listed on 
any national securities exchange registered under Section 6 of the Exchange 
Act or quoted in a U.S. automated inter-dealer quotation system.

          (aa) Neither the Company, any of its affiliates nor the Trust, nor 
any person acting on their behalf  (i) has, within the six-month period prior 
to the date hereof, offered or sold in the United States or to any U.S. 
person (as such terms are defined in Regulation S) the Offered Securities or 
any security of the same class or series as the Offered Securities or (ii) 
has offered or will offer or sell the Offered Securities (A) in the United 
States by means of any form of general solicitation or general advertising 
within the meaning of Rule 502(c) under the Securities Act or (B) with 
respect to any such securities sold in reliance on Rule 903 of Regulation S, 
by means of any directed selling efforts within the meaning of Rule 902(b) of 
Regulation S.  The Company, its affiliates and any person acting on its or 
their behalf have complied and will comply with the offering restrictions 
requirement of Regulation S. 

                                       9
<PAGE>

The Company has not entered and will not enter into any contractual 
arrangement with respect to the distribution of the Offered Securities except 
for this Agreement.

          (bb) The Company is subject to Section 13 or 15(d) of the Exchange 
Act.

          (cc) The statutory financial statements of each of the Company's 
insurance subsidiaries, from which certain ratios and other statistical data 
contained in the Offering Document have been derived, have for each relevant 
period been prepared in accordance with accounting practices and procedures 
of the National Association of Insurance Commissioners ("NAIC"), as 
prescribed or permitted by the Insurance Departments of the various states in 
which such subsidiaries write insurance business  (the "Statutory Accounting 
Practices"); and such accounting practices have been applied on a consistent 
basis throughout the periods involved, except as disclosed in such statutory 
financial statements.

          (dd) All reserves and other liabilities reflected in the actuarial 
opinion filed with the statutory annual statements of each of the Company's 
insurance subsidiaries, filed with or submitted to the Insurance Departments 
of the various states in which such subsidiaries write insurance business, 
for the year ended December 31, 1997 (the "Reserve Liabilities"):

          (i)    Are computed in all material respects in accordance with 
                 actuarial standards which have been adopted by the Actuarial 
                 Standards Board, consistently applied and are fairly stated, 
                 in accordance with sound actuarial principles;

          (ii)   Are based in all material respects on actuarial assumptions 
                 which produce reserves at least as great as those called for 
                 in any contract provision as to reserve basis and method, 
                 and are in accordance with all other contract provisions;

          (iii)  Meet all material requirements of the insurance laws and 
                 duly adopted regulations, in effect at the valuation date, 
                 of the applicable state and are at least as great as the 
                 minimum aggregate amounts required by the insurance laws and 
                 duly adopted regulations, in effect at the valuation date, 
                 of any states in which the Company's insurance subsidiaries 
                 file an actuarial opinion;

                                       10
<PAGE>

          (iv)   Are computed on the basis of assumptions consistent in all 
                 material respects with those used in computing the 
                 corresponding items in the annual statement of the preceding 
                 year end (except as noted in the supporting memorandum); and

          (v)    Include provisions for all actuarial reserves and related 
                 annual statement items which are required under the 
                 applicable insurance laws.

Adequate provision for all such Reserve Liabilities has been made in 
accordance with the applicable insurance laws to cover the total amount of 
all reasonably anticipated matured and unmatured benefits, claims and other 
liabilities of the Company's insurance subsidiaries under all insurance 
policies under which the Company's insurance subsidiaries had any liability 
(including, without limitation, any liability arising under or as a result of 
any reinsurance, coinsurance or other similar agreement) on December 31, 1997.

          (ee) Each of the Company's insurance subsidiaries has duly and 
validly filed or caused to be filed all reports, statements, documents, 
registrations, filings or submissions that were required by all applicable 
United States federal, state, local or foreign statutes, laws, ordinances, 
regulations, rules, codes, orders, permits, other requirements or rules of 
law (collectively, the "Laws") to be filed, except where a failure to so file 
would not have a Material Adverse Effect; all such filings complied with all 
applicable Laws in all respects when filed, except where the failure to so 
comply would not have a Material Adverse Effect, and no deficiencies have 
been asserted with respect to any such filings which have not been satisfied, 
except where such deficiencies would not have a Material Adverse Effect.  All 
outstanding insurance policies and assumption certificates issued by any of 
the Company's insurance subsidiaries and now in force are, to the extent 
required under applicable Laws, on forms approved by the insurance regulatory 
authority of the jurisdiction where issued and utilize premium rates which, 
if required to be filed with or approved by insurance regulatory authorities, 
have been so filed or approved, except where the failure to use approved 
forms or to file or have approved such premium rates would not have a 
Material Adverse Effect, and the premiums charged conform thereto, except 
where the failure to conform would not have a Material Adverse Effect.

          (ff) Except as set forth in the Offering Document, neither the 
Company nor any of the Company's insurance subsidiaries is a party to any 
contract with or other undertaking to, or is subject to any governmental 
order by, or is a recipient of any presently applicable supervisory letter or 
other written communication 

                                       11
<PAGE>

of any kind from, any governmental authority which (i) has had a Material 
Adverse Effect, (ii) relates materially and adversely to its reserve 
adequacy, or its investment or underwriting practices or policies or its 
sales practices or policies, or (iii) would reasonably be expected to have a 
Material Adverse Effect, nor has the Company or any of the Company's 
insurance subsidiaries been notified by any governmental authority that it is 
contemplating issuing or requesting (or is considering the appropriateness of 
issuing or requesting) any such governmental order, contract, undertaking, 
letter or other written communication.

          (gg)  To the Company's knowledge and each of the Company's 
insurance subsidiary's knowledge, except as set forth in the Offering 
Document, and with respect to all insurance issued, no other party to any 
reinsurance, coinsurance or other similar agreement with any of the Company's 
insurance subsidiaries is in default thereunder, except for such defaults 
that would not reasonably be expected to have a Material Adverse Effect.

     3.  PURCHASE, SALE AND DELIVERY OF OFFERED SECURITIES.  On the basis of 
the representations, warranties and agreements herein contained, but subject 
to the terms and conditions herein set forth, the Trust and the Company agree 
that the Trust shall sell to the Purchasers, and the Purchasers agree, 
severally and not jointly, to purchase from the Trust, at a purchase price of 
$996.24 per Offered Security plus accumulated distributions from July 30, 
1998, if any, on the Closing Date (as hereinafter defined), the respective 
liquidation amounts of Offered Securities set forth opposite the names of the 
Purchasers in Schedule A hereto.

     The Trust will deliver against payment of the purchase price therefor 
the Offered Securities to be offered and sold by the Purchasers in reliance 
on Regulation S (the "Regulation S Securities") in the form of one or more 
permanent global securities in registered form without interest coupons (the 
"Regulation S Global Securities") which will be deposited with the Property 
Trustee, as custodian for The Depository Trust Company ("DTC") for the 
respective accounts of the DTC participants for Morgan Guaranty Trust Company 
of New York, Brussels office, as operator of the Euroclear System 
("Euroclear"), and Cedel Bank societe anonyme ("Cedel") and registered in the 
name of Cede & Co., as nominee for DTC. The Trust will deliver against 
payment of the purchase price therefor the Offered Securities to be purchased 
by each Purchaser hereunder and to be offered and sold by each Purchaser in 
reliance on Rule 144A under the Securities Act (the "144A Securities") in the 
form of one permanent global security in definitive form without interest 
coupons (the "Restricted Global Securities") deposited with the Property 
Trustee, as custodian for the DTC and registered in the name of Cede & Co., 
as nominee for DTC. The Regulation S Global 

                                       12
<PAGE>

Securities and the Restricted Global Securities shall be assigned separate 
CUSIP numbers. The Restricted Global Securities shall include the legend 
regarding restrictions on transfer set forth under "Transfer Restrictions" in 
the Offering Document. Until the termination of the restricted period (as 
defined in Regulation S) with respect to the offering of the Offered 
Securities, interests in the Regulation S Global Securities may only be held 
by the DTC participants for Euroclear and Cedel. Interests in any permanent 
global Securities will be held only in book-entry form through Euroclear, 
Cedel or DTC, as the case may be, except in the limited circumstances 
described in the Offering Document.

     Payment for the Regulation S Securities and the 144A Securities shall be 
made by the Purchasers in Federal (same day) funds by wire transfer to an 
account at a bank acceptable to CSFBC drawn to the order of the Trust at 1:00 
P.M., (New York time), on July 30, 1998, or at such other time not later than 
seven full business days thereafter as CSFBC and the Company determine, such 
time being herein referred to as the "Closing Date," against delivery to the 
DTC of (i) the Regulation S Global Securities representing all of the 
Regulation S Securities for the respective accounts of the DTC participants 
for Euroclear and Cedel and (ii) the Restricted Global Securities 
representing all of the 144A Securities. The Regulation S Global Securities 
and the Restricted Global Securities will be made available for checking at 
the above office of Debevoise & Plimpton at least 24 hours prior to the 
Closing Date.

     Notwithstanding the foregoing, any Offered Securities sold to 
Institutional Accredited Investors (as defined in Section 4(c) hereof) 
pursuant to Section 4(c) hereof shall be issued in definitive, fully 
registered form and shall bear the legend relating thereto set forth under 
"Transfer Restrictions" in the Offering Document, but shall be paid for in 
the same manner as any Offered Securities to be purchased by the Purchasers 
hereunder, and to be offered and sold by them in reliance on Rule 144A under 
the Securities Act.

     As compensation for the Purchasers' commitments, and in view of the fact 
that the proceeds of the sale of the Offered Securities will be used by the 
Trust to purchase the Subordinated Debentures of the Company, the Company 
will pay CSFBC for the Purchasers' proportionate accounts the sum of $10.00 
per Offered Security times the total number of Offered Securities purchased 
by the Purchasers on the Closing Date.  Such payment will be made on the 
Closing Date with respect to the Offered Securities purchased on such Closing 
Date.

                                       13
<PAGE>

     4.  REPRESENTATIONS BY PURCHASERS; RESALE BY PURCHASERS. (a)  Each 
Purchaser severally represents and warrants to the Company that it is an 
"accredited investor" within the meaning of Regulation D under the Securities 
Act.

          (b)  Each Purchaser severally acknowledges that the Offered 
Securities have not been registered under the Securities Act and may not be 
offered or sold within the United States or to, or for the account or benefit 
of, U.S. persons except in accordance with Regulation S or pursuant to an 
exemption from the registration requirements of the Securities Act.  Each 
Purchaser severally represents and agrees that it has offered and sold the 
Offered Securities, and will offer and sell the Offered Securities (i) as 
part of its distribution at any time and (ii) otherwise until 40 days after 
the later of the commencement of the offering and the Closing Date, only in 
accordance with Rule 903 of Regulation S or Rule 144A under the Securities 
Act ("Rule 144A") or in the case of CSFBC or any other Purchaser authorized 
by CSFBC, to a limited number of Institutional Accredited Investors in 
accordance with Section 4(c) hereof. Accordingly, neither such Purchaser nor 
its affiliates, nor any persons acting on its or their behalf, have engaged 
or will engage in any directed selling efforts with respect to the Offered 
Securities, and such Purchaser, its affiliates and all persons acting on its 
or their behalf have complied and will comply with the offering restrictions 
requirement of Regulation S.  Each Purchaser severally agrees that, at or 
prior to confirmation of sale of the Offered Securities, other than a sale 
pursuant to Rule 144A or a sale to an Institutional Accredited Investor in 
accordance with Section 4(c) hereof, such Purchaser will have sent to each 
distributor, dealer or person receiving remuneration that purchases the 
Offered Securities from it during the restricted period a confirmation or 
notice to substantially the following effect:

          "The Securities covered hereby have not been registered under the U.S.
     Securities Act of 1933 (the "Securities Act") and may not be offered or
     sold within the United States or to, or for the account or benefit of, U.S.
     persons (i) as part of their distribution at any time or (ii) otherwise
     until 40 days after the later of the date of the commencement of the
     offering and the closing date, except in either case in accordance with
     Regulation S (or Rule 144A if available) under the Securities Act. Terms
     used above have the meanings given to them by Regulation S."

Terms used in this subsection (b) have the meanings given to them by 
Regulation S.

          (c)  CSFBC and any other Purchaser authorized by CSFBC may offer 
and sell Offered Securities in definitive, fully registered form to a limited 
number of institutions, each of which is reasonably believed by the 
applicable purchaser to be an 

                                       14
<PAGE>

"accredited investor" within the meaning of Rule 501(a)(1), (2) or (3) under 
the Securities Act or an entity in which all of the equity owners are 
accredited investors within the meaning of Rule 501(a)(1), (2) or (3) under 
the Securities Act (each, an "Institutional Accredited Investor"); PROVIDED 
that each such Institutional Accredited Investor executes and delivers to 
such Purchaser and the Trust, prior to the consummation of any sale of 
Offered Securities to such Institutional Accredited Investor, a Purchaser's 
Letter in substantially the form attached as Annex A to the Offering Document.

          (d)  Each Purchaser severally agrees that it and each of its 
affiliates has not entered and will not enter into any contractual 
arrangement with respect to the distribution of the Offered Securities except 
for any such arrangements with the other Purchasers or affiliates of the 
other Purchasers or with the prior written consent of the Company.

          (e)  Each Purchaser severally agrees that it and each of its 
affiliates will not offer or sell the Offered Securities in the United States 
by means of any form of general solicitation or general advertising within 
the meaning of Rule 502(c) under the Securities Act, including, but not 
limited to (i) any advertisement, article, notice or other communication 
published in any newspaper, magazine or similar media or broadcast over 
television or radio, or (ii) any seminar or meeting whose attendees have been 
invited by any general solicitation or general advertising.  Each Purchaser 
severally agrees, with respect to resales made in reliance on Rule 144A of 
any of the Offered Securities, to deliver either with the confirmation of 
such resale or otherwise prior to settlement of such resale a notice to the 
effect that the resale of such Offered Securities has been made in reliance 
upon the exemption from the registration requirements of the Securities Act 
provided by Rule 144A.

          (f)  Each of the Purchasers severally represents and agrees that 
(i) it has not offered or sold and prior to the date six months after the 
date of issue of the Offered Securities will not offer or sell any Offered 
Securities to persons in the United Kingdom except to persons whose ordinary 
activities involve them in acquiring, holding, managing or disposing of 
investments (as principal or agent) for the purposes of their businesses or 
otherwise in circumstances which have not resulted and will not result in an 
offer to the public in the United Kingdom within the meaning of the Public 
Offers of Securities Regulations 1995; (ii) it has complied and will comply 
with all applicable provisions of the Financial Services Act 1986 with 
respect to anything done by it in relation to the Offered Securities in, from 
or otherwise involving the United Kingdom; and (iii) it has only issued or 
passed on and will only issue or pass on in the United Kingdom any document 
received by it in connection with the issue of the 

                                       15
<PAGE>

Offered Securities to a person who is of a kind described in Article 11(3) of 
the Financial Services Act 1986 (Investment Advertisements) (Exemptions) 
Order 1996 or is a person to whom such document may otherwise lawfully be 
issued or passed on.

          (g)  No action has been taken or will be taken by the Purchasers 
that would permit (i) a public offering of the Offered Securities or (ii) 
possession or distribution of the Offering Document in any country or 
jurisdiction where action for that purpose is required.  Each Purchaser will 
comply with all applicable laws and regulations in each jurisdiction in which 
it offers, sells or delivers the Offered Securities or has in its possession 
or distributes the Offering Document.

     5.  CERTAIN AGREEMENTS OF THE TRUST AND THE COMPANY.  Each of the Trust 
and the Company agrees with the several Purchasers that:

          (a)  Each of the Trust and the Company will advise CSFBC promptly 
of any proposal to amend or supplement the Offering Document and will not 
effect such amendment or supplement without CSFBC's consent. If, at any time 
prior to the completion of the resale of the Offered Securities by the 
Purchasers, any event occurs as a result of which the Offering Document as 
then amended or supplemented would include an untrue statement of a material 
fact or omit to state any material fact necessary in order to make the 
statements therein, in the light of the circumstances under which they were 
made, not misleading, each of the Trust and the Company, as applicable, 
promptly will notify CSFBC of such event and promptly will prepare, at its 
own expense, an amendment or supplement which will correct such statement or 
omission. Neither CSFBC's consent to, nor the Purchasers' delivery to 
offerees or investors of, any such amendment or supplement shall constitute a 
waiver of any of the conditions set forth in Section 6.

          (b)  The Trust will furnish to CSFBC copies of the Offering 
Document and all amendments and supplements thereto, in each case as soon as 
available and in such quantities as CSFBC requests, and the Trust will 
furnish to CSFBC on the date hereof four copies of the Offering Document 
signed by a duly authorized officer of the Trust. At any time when the 
Company is not subject to Section 13 or 15(d) of the Exchange Act, the 
Company will promptly furnish or cause to be furnished to CSFBC (and, upon 
request, to each of the other Purchasers) and, upon request of holders and 
prospective purchasers of the Offered Securities, to such holders and 
prospective purchasers, copies of the information required to be delivered to 
the Securityholders and prospective purchasers of the Offered Securities 
pursuant to Rule 144A(d)(4) under the Securities Act (or any successor 
provision thereto) in order 

                                       16
<PAGE>

to permit compliance with Rule 144A in connection with resales by such 
Securityholders.  The Company will pay the expenses of printing and 
distributing to the Purchasers all such documents.

          (c)  The Trust will use its best efforts, in cooperation with the 
Purchasers, to arrange for the qualification of the Offered Securities for 
sale and the determination of their eligibility for investment under the laws 
of such jurisdictions as CSFBC designates and will continue such 
qualifications in effect so long as required for the distribution; PROVIDED 
HOWEVER, that the Trust shall not be obligated to file any general consent to 
service of process or to qualify as a foreign corporation or as a dealer in 
securities in any jurisdiction in which it is not so qualified or to subject 
itself to taxation in respect of doing business in any jurisdiction in which 
it is not otherwise so subject.

          (d)  During the period of five years hereafter, the Company will 
furnish to CSFBC, and, upon request, to each of the other Purchasers, (i) as 
soon as practicable after the end of each fiscal year, a copy of its annual 
report to stockholders for such year, (ii) as soon as available, a copy of 
each report and any definitive proxy or information statement of the Company 
filed with the Commission under the Exchange Act or mailed to stockholders, 
and (iii) from time to time, such other information as shall be furnished by 
the Company to its stockholders generally and as shall be reasonably 
requested by CSFBC.

          (e)  During the period of two years after the Closing Date, the 
Trust will, upon request, furnish to CSFBC, each of the other Purchasers and 
any holder of Offered Securities a copy of the restrictions on transfer 
applicable to the Offered Securities.

          (f)  During the period of two years after the Closing Date, neither 
the Company nor the Trust will, nor will either permit any of its affiliates 
(as defined in Rule 144 under the Securities Act) to, resell any of the 
Offered Securities that have been reacquired by any of them.

          (g)  During the period of two years after the Closing Date, neither 
the Company nor the Trust will be or become an open-end investment company, 
unit investment trust or face-amount certificate company that is or is 
required to be registered under Section 8 of the Investment Company Act.

                                       17
<PAGE>

          (h)  Each of the Company and the Trust will cooperate with CSFBC 
and use its reasonable best efforts to permit the Offered Securities to be 
eligible for clearance and settlement through the facilities of the DTC.

          (i)  The Company will pay all expenses incident to the performance 
of its and the Trust's obligations under this Agreement, including (i) all 
expenses in connection with the execution, issue, authentication, packaging 
and initial delivery of the Offered Securities, the preparation of this 
Agreement, the Company Agreements, the preparation and printing of the 
Offering Document and amendments and supplements thereto and any other 
document relating to the issuance, offer, sale and delivery of the Offered 
Securities; (ii) the cost of any advertising approved by the Company in 
connection with the issue of the Offered Securities; (iii) for any expenses 
(including fees and disbursements of counsel) incurred in connection with 
qualification of the Offered Securities for sale under the laws of such 
jurisdictions in the United States and Canada as CSFBC designates and the 
printing of memoranda relating thereto; (iv) for any fees charged by 
investment rating agencies for the rating of the Offered Securities; (v) for 
any fees and disbursements of the Company's accountants, including any such 
fees and disbursements incurred in connection with the preparation of 
"comfort" letters pursuant to Section 6(a) and 6(c) hereof; and (vi) for 
expenses incurred in distributing preliminary offering circulars and the 
Offering Document (including any amendments and supplements thereto) to the 
Purchasers.  The Company will also pay or reimburse the Purchasers (to the 
extent incurred by them) for all travel expenses of the Purchasers and the 
Company's officers and employees and any other expenses of the Purchasers and 
the Company in connection with attending or hosting meetings with prospective 
purchasers of the Offered Securities from the Purchasers.

          (j)  The Trust and the Company will notify CSFBC of any material 
adverse change affecting any of its representations, warranties, agreements 
and indemnities herein at any time prior to payment to the Trust on the 
Closing Date.

          (k)  The Company will subscribe for, purchase and pay for the 
Common Securities and issue the Guarantee concurrently with the issue and 
sale of the Offered Securities as contemplated herein.

          (l)  The Trust will use the proceeds received by it from the sale 
of the Offered Securities, and the Company will use the net proceeds received 
by it from the sale of the Subordinated Debentures in the manner specified in 
the Offering Document under the caption "Use of Proceeds."

                                       18
<PAGE>

     6.  CONDITIONS OF THE OBLIGATIONS OF THE PURCHASERS.  The obligations of 
the several Purchasers to purchase and pay for the Offered Securities on the 
Closing Date will be subject to the accuracy of the representations and 
warranties on the part of the Trust and the Company herein, to the accuracy 
of the statements of the Trust's Trustees and the Company's officers made 
pursuant to the provisions hereof, to the performance by the Trust or the 
Company of its obligations hereunder and to the following additional 
conditions precedent:

          (a)  The Purchasers shall have received a letter, dated the date of 
this Agreement, of PricewaterhouseCoopers LLP confirming that they are 
independent public accountants with respect to the Company within the meaning 
of the Securities Act and the applicable published rules and regulations 
thereunder ("Rules and Regulations") and to the effect that:

          (i)    In their opinion the financial statements examined by them 
                 and included in the Exchange Act Reports comply as to form 
                 in all material respects with the applicable accounting 
                 requirements of the Securities Act and the related published 
                 Rules and Regulations;

          (ii)   With respect to the quarters ended March 31, 1998 and 1997, 
                 they have:

                 (a)  Performed the procedures (completed on May 14, 1998) 
                      specified by the American Institute of Certified Public 
                      Accountants for a review of interim financial 
                      information, as described in SAS No. 71, INTERIM 
                      FINANCIAL INFORMATION, on the unaudited interim 
                      consolidated financial statements incorporated by 
                      reference in the Offering Document; and

                 (b)  Inquired of certain officials of the Company who have 
                      responsibility for financial and accounting matters 
                      whether such unaudited interim consolidated financial 
                      statements comply as to form in all material respects 
                      with the applicable accounting requirements of the 
                      Exchange Act as it applies to Form 10-Q and the related 
                      rules and regulations adopted by the Commission.

          (iii)  Nothing came to their attention as a result of the 
                 procedures specified in clause (ii), that caused them to 
                 believe that:

                                       19
<PAGE>

                 (a)  (A)  Any material modification should be made to such 
                           unaudited consolidated financial statements for 
                           them to be in conformity with generally accepted 
                           accounting principles.

                      (B)  Such unaudited consolidated financial statements 
                           do not comply as to form in all material respects 
                           with the applicable accounting requirements of the 
                           Exchange Act as it applies to Form 10-Q and the 
                           Rules and Regulations.

                 (b)  (A)  At March 31, 1998, there was any change in the 
                           outstanding capital stock of the Company (other 
                           than issuances of common stock upon exercise of 
                           stock options and treasury stock repurchases under 
                           the Company's stock repurchase program), or any 
                           increase in the total consolidated debt of the 
                           Company, as compared with amounts shown in the 
                           December 31, 1997 audited consolidated balance 
                           sheet incorporated by reference in the Offering 
                           Document, except that total consolidated debt 
                           increased by $405,000 and except in each case for 
                           changes, increases or decreases disclosed in the 
                           Offering Document.

                      (B)  For the period from January 1, 1998 to March 31, 
                           1998, the unaudited total revenue and net income 
                           amounts shown in such unaudited consolidated 
                           financial statements were not determined on a 
                           basis substantially consistent with those amounts 
                           shown in the audited consolidated financial 
                           statements for the year ended December 31, 1997, 
                           incorporated by reference in the Offering Document.

          (iv)   Officials of the Company have advised them that no 
                 consolidated financial statements as of any date or for any 
                 period subsequent to March 31, 1998 are available; 
                 accordingly, the procedures carried out by them with respect 
                 to changes in financial statement items after March 31, 1998 
                 have been, even more limited than those with respect to the 
                 periods referred to in clause (ii).  They 

                                       20
<PAGE>

                 have inquired of certain officials of Zenith who have 
                 responsibility for financial and accounting matters 
                 regarding whether at July 27, 1998 there was any change in 
                 capital stock of the Company (other than issuances of common 
                 stock upon exercise of stock options and treasury stock 
                 repurchases under the Company's stock repurchase program), 
                 or any increase in total consolidated debt of the Company, 
                 as compared with amounts shown in the December 31, 1997 
                 audited consolidated balance sheet incorporated by reference 
                 in the Offering Document.  On the basis of these inquiries 
                 and their reading of the applicable minutes of the Company, 
                 nothing came to their attention that caused them to believe 
                 that there was any such change, increase or decrease, except 
                 that total consolidated debt increased by $3,579,000 and 
                 except in each case for changes, increases or decreases 
                 disclosed in the Offering Document; and

          (v)    They have:

                 (a)  Read the unaudited pro forma combined condensed balance 
                      sheet as of December 31, 1997 and the unaudited pro 
                      forma combined condensed statement of operations for 
                      the year ended December 31, 1997 included in the 
                      Company's report on Form 8-K/A, filed June 12, 1998, 
                      and incorporated by reference in the Offering Document.

                 (b)  Inquired of certain officials of the Company, who have 
                      responsibility for financial and accounting matters 
                      about:

                      (A)  the basis of their determination of the pro forma 
                           adjustments; and

                      (B)  whether such unaudited pro forma combined 
                           condensed financial statements comply as to form 
                           in all materials respects with the applicable 
                           accounting requirements of Rule 11-02 of 
                           Regulation S-X.

                 (c)  Proved the arithmetic accuracy of the application of 
                      the pro forma adjustments to the historical amounts in 
                      the 

                                       21
<PAGE>

                      unaudited pro forma combined condensed financial 
                      statements.

          (vi)   Nothing came to their attention as a result of the 
                 procedures specified in clause (v) that caused them to 
                 believe that the unaudited pro forma combined condensed 
                 financial statements incorporated by reference in the 
                 Offering Document do not comply as to form in all material 
                 respects with the applicable accounting requirements of Rule 
                 11-02 of Regulation S-X or that the pro forma adjustments 
                 have not been properly applied to the historical amounts in 
                 the compilation of those statements. 

          (vii)  They have compared specified dollar amounts (or percentages 
                 derived from such dollar amounts) and other financial 
                 information contained in the Offering Document and the 
                 Exchange Act Reports (in each case to the extent that such 
                 dollar amounts, percentages and other financial information 
                 are derived from the general accounting records of the 
                 Company and its subsidiaries subject to the internal 
                 controls of the Company's accounting system or are derived 
                 directly from such records by analysis or computation) with 
                 the results obtained from inquiries, a reading of such 
                 general accounting records and other procedures specified in 
                 such letter and have found such dollar amounts, percentages 
                 and other financial information to be in agreement with such 
                 results, except as otherwise specified in such letter.

          (b)  Subsequent to the execution and delivery of this Agreement, 
there shall not have occurred (i) a change in U.S. or international 
financial, political or economic conditions or currency exchange rates or 
exchange controls as would, in the judgment of a majority in interest of the 
Purchasers (calculated in accordance with Schedule A hereto), including 
CSFBC, be likely to prejudice materially the success of the proposed issue, 
sale or distribution of the Offered Securities, whether in the primary market 
or in respect of dealings in the secondary market; (ii) any change, or any 
development or event involving a prospective change, in the conditions 
(financial or other), business, properties or results of operations of the 
Trust or the Company or the subsidiaries of the Company which, in the 
judgment of a majority in interest of the Purchasers, is material and adverse 
and makes it impractical or inadvisable to proceed with the completion of the 
offering or sale of and payment for the Offered Securities; 

                                       22
<PAGE>

(iii) any downgrading in the rating of any debt securities of the Company by 
any "nationally recognized statistical rating organization" (as defined for 
purposes of Rule 436(g) under the Act), or any public announcement that any 
such organization has under surveillance, review or watch its rating of any 
debt securities of the Company (other than an announcement with positive 
implications of a possible upgrading, and no implication of a possible 
downgrading, of such rating) or any downgrading of the financial and 
operating performance of the Company's insurance subsidiaries by A.M. Best 
Company that results in the Company's insurance subsidiaries being rated 
lower than A+ (Superior); (iv) any suspension or limitation of trading in 
securities generally on the New York Stock Exchange, or any setting of 
minimum prices for trading on such exchange or system, or any suspension of 
trading of any securities of the Trust or the Company on any exchange or in 
the over-the-counter market; (v) any banking moratorium declared by U.S. 
Federal or New York authorities; or (vi) any outbreak or escalation of major 
hostilities in which the United States is involved, any declaration of war by 
Congress or any other substantial national or international calamity or 
emergency if, in the judgment of a majority in interest of the Purchasers, 
the effect of any such outbreak, escalation, declaration, calamity or 
emergency makes it impractical or inadvisable to proceed with completion of 
the offering or the sale of and payment for the Offered Securities.

          (c)  The Purchasers shall have received a letter, dated the Closing 
Date, of PricewaterhouseCoopers LLP which meets the requirements of 
subsection (a) of this Section, except that the specified date referred to in 
such subsection will be a date not more than three business days prior to the 
Closing Date for the purposes of this subsection.

          (d)  The Purchasers shall have received an opinion, dated the 
Closing Date, of LeBoeuf, Lamb, Greene & MacRae, L.L.P., special counsel for 
the Trust and the Company to the effect that:

               (i)    The Company is an existing corporation in good standing
          under the laws of the State of Delaware, with corporate power and
          authority to own its properties and conduct its business as described
          in the Offering Document.

               (ii)   The Indenture has been duly authorized, executed and
          delivered by the Company and constitutes a valid and binding
          instrument of the Company enforceable against the Company in
          accordance with its terms, subject to the Enforceability Exceptions.
          The Indenture conforms 

                                       23
<PAGE>

          in all material respects to the description contained in the 
          Offering Document.

               (iii)  The Subordinated Debentures have been duly authorized 
          by the Company, and, when executed by the Company, authenticated by 
          the Indenture Trustee in the manner provided for in the Indenture 
          and delivered to, and paid for by the Trust in accordance with the 
          terms of the Trust Agreement, will constitute valid and binding 
          obligations of the Company enforceable against the Company in 
          accordance with their terms, subject to the Enforceability 
          Exceptions.  The Subordinated Debentures conform in all material 
          respects to the description thereof contained in the Offering 
          Document.

               (iv)   The Trust Agreement has been duly authorized, executed 
          and delivered by the Company.

               (v)    The Guarantee has been duly authorized, executed and 
          delivered by the Company and constitutes a valid and binding 
          instrument of the Company enforceable against the Company in 
          accordance with its terms, subject to the Enforceability 
          Exceptions. The Guarantee conforms in all material respects to the 
          description thereof contained in the Offering Document.

               (vi)   This Agreement has been duly authorized, executed and 
          delivered by the Company.

               (vii)  The statements in the Offering Document under the 
          headings "Description of the Capital Securities," "Description of 
          the Guarantee," "Description of the Subordinated Debentures" and 
          "Effect of Obligations under the Subordinated Debentures, the 
          Guarantee and the Declaration," insofar as they purport to 
          constitute summaries of the terms of the documents referred to 
          therein, fairly summarize the terms of such documents in all 
          material respects; the statements in the Offering Document under 
          the heading "United States Federal Income Taxation" are true and 
          correct in all material respects; and the Trust will be treated as 
          a grantor trust for U.S. federal income tax purposes.

               (viii) It is not necessary in connection with (i) the 
          offer, sale and delivery of the Offered Securities by the Company 
          to the Purchasers pursuant to this Agreement or (ii) the resales of 
          the Offered Securities by 

                                       24
<PAGE>

          the Purchasers in the manner contemplated by this Agreement, to 
          register the Offered Securities under the Securities Act or to 
          qualify the Indenture under the TIA.

               (ix)   No consent, approval, authorization or order of, or 
          filing with, any U.S. Federal or state of New York agency or body 
          or any court is required for the consummation by the Company of the 
          transactions contemplated by this Agreement in connection with the 
          issuance or sale of the Offered Securities by the Trust, except 
          such as have been obtained and made under the General Corporation 
          Law of Delaware and such as may be required under any state 
          securities laws (including insurance securities laws).

               (x)    Neither the Company nor the Trust is an open-end 
          investment company, unit investment trust or face-amount 
          certificate company that is or is required to be registered under 
          Section 8 of the 1940 Act ; and neither the Company nor the Trust 
          is and, after giving effect to the offering and sale of the Offered 
          Securities and the application of the proceeds thereof as described 
          in the Offering Document, will be an "investment company" as 
          defined in the 1940 Act.

          In addition to the matters set forth above, such opinion shall also 
include a statement to the effect that such counsel has not checked the 
accuracy or completeness of, or otherwise verified, and is not passing upon 
and assume no responsibility for the accuracy or completeness of, the 
information contained in the Offering Document (except to the limited extent 
set forth in Section 6(d)(vii) hereof), and in the course of its review and 
discussion of the contents of the Offering Document such counsel participated 
in conferences with representatives of the Company, certain officers and 
employees of the Company, the independent public accountants of the Company 
and the Purchasers and their counsel, and that in the course of such review, 
but without independent check or verification, no facts have come to such 
counsel's attention which have caused such counsel to believe that the 
Offering Document (including the Exchange Act Reports incorporated by 
reference therein) (except as to financial statements and related schedules 
and other financial and statistical information contained therein, as to 
which such counsel expresses no belief), contained on the date hereof or 
contain on the Closing Date an untrue statement of a material fact or omitted 
or omit to state a material fact necessary to make the statements therein, in 
light of the circumstances under which they were made, not misleading.

                                       25
<PAGE>

          In rendering the foregoing opinions, such counsel may rely as to 
matters of fact upon certificates of the Trust's Trustees and officers of the 
Company and its subsidiaries, as to matters involving good standing, 
authorization to do business and other matters within their knowledge, upon 
certificates of public officials, and, as to matters involving the 
application of laws of any jurisdiction other than the State of New York or 
the United States, upon opinions of local counsel which opinions shall state 
that they believe both the Purchasers and such counsel are justified in 
relying upon such certificates and opinions.

          (e)  The Purchasers shall have received an opinion, dated such 
Closing Date, from John J. Tickner, Senior Vice President and Secretary of 
the Company to the effect that:

               (i)    The Company is duly qualified to do business as a foreign 
          corporation in good standing in all jurisdictions in which its 
          ownership or lease of property or the conduct of its business 
          requires such qualification, except to the extent that the failure 
          to so qualify or be in good standing would not have a Material 
          Adverse Effect. 

               (ii)   Each significant subsidiary (as such term is defined in 
          Rule 1-02 of Regulation S-X) of the Company has been duly 
          incorporated and is an existing corporation in good standing under 
          the laws of the jurisdiction of its incorporation, with corporate 
          power and authority to own its properties and conduct its business 
          as described in the Offering Document; and each subsidiary of the 
          Company is duly qualified to do business as a foreign corporation 
          in good standing in all other jurisdictions in which its ownership 
          or lease of property or the conduct of its business requires such 
          qualification, except to the extent that the failure to so qualify 
          or be in good standing would not have a Material Adverse Effect.

               (iii)  The execution, delivery and performance of this 
          Agreement and the Company Agreements, the issuance by the Company 
          of the Guarantee and the Subordinated Debentures, and compliance by 
          the Company with all of the terms and provisions of this Agreement 
          and the Company Agreements, will not result in a breach or 
          violation of any of the terms and provisions of, or constitute a 
          default under, any statute, rule, regulation or order of any 
          governmental agency or body or court, domestic or foreign, having 
          jurisdiction over the Company or any of its subsidiaries or any of 
          their properties, or any agreement or instrument to 

                                       26
<PAGE>

          which the Company or any such subsidiary is a party or by which the 
          Company or any such subsidiary is bound or to which any of the 
          properties of the Company or any such subsidiary is subject, or the 
          certificate of incorporation, as amended, or the bylaws of the 
          Company or the articles or amended articles of incorporation and 
          code of regulations or bylaws, as the case may be, of any such 
          subsidiary, in each case, except for such breaches, violations or 
          defaults as would not have a Material Adverse Effect; and the 
          Company has full corporate power and authority to authorize and 
          issue the Guarantee and the Subordinated Debentures and to 
          consummate the transactions contemplated by this Agreement and the 
          Company Agreements.

               (iv)   No consent, approval, authorization or order of, or 
          filing with, any U.S. Federal or state governmental agency or body 
          or any court is required for the consummation by the Company of the 
          transactions contemplated by this Agreement in connection with the 
          issuance or sale of the Offered Securities by the Trust, except 
          such as have been obtained and made under the General Corporation 
          Law of Delaware and such as may be required under any state 
          securities laws (including insurance securities laws).

               (v)    The Company and each of its subsidiaries hold all 
          licenses, certificates and permits from all governmental 
          authorities (including, without limitation, Insurance Licenses) 
          which are necessary to the conduct of their respective businesses, 
          except where the failure to hold such licenses, certificates or 
          permits would not have a Material Adverse Effect; the insurance 
          subsidiaries of the Company have fulfilled and performed all 
          obligations necessary to maintain their respective Insurance 
          Licenses, except where the failure to perform such obligations 
          would not have a Material Adverse Effect; and no event or events 
          have occurred which may be reasonably expected to result in any 
          impairment, modification, termination or revocation of such 
          Insurance Licenses which individually or the aggregate would have a 
          Material Adverse Effect.

          In rendering the foregoing opinions, such counsel may rely as to 
matters of fact upon certificates of the Trust's Trustees and officers of the 
Company and its subsidiaries, as to matters involving good standing, 
authorization to do business and other matters within their knowledge, upon 
certificates of public officials, and, as to matters involving the 
application of laws of any jurisdiction other than the State of 

                                       27
<PAGE>

California or the United States, upon opinions of local counsel which 
opinions shall state that they believe both the Purchasers and such counsel 
are justified in relying upon such certificates and opinions.

          (f)  The Purchasers shall have received an opinion, dated such 
Closing Date, of Potter Anderson & Corroon LLP, special Delaware counsel to 
the Trust and the Company, to the effect that:

               (i)    The Trust has been duly created and is validly existing in
          good standing as a business trust under the Delaware Business Trust
          Act.

               (ii)   Under the Delaware Business Trust Act and the Trust
          Agreement, the Trust has the trust power and authority (a) to own its
          properties (including, without limitation, the Subordinated
          Debentures) and conduct its business, (b) to execute and deliver, and
          to perform its obligations under, the agreements to which it is a
          party, and (c) to issue and perform its obligations under the Offered
          Securities and Common Securities, all as described in the Trust
          Agreement.

               (iii)  The Trust Agreement constitutes a valid and binding
          obligation of the Company and the Trustees, enforceable against the
          Company and the Trustees, respectively, in accordance with its terms,
          subject to the Enforceability Exceptions.

               (iv)   Under the Delaware Business Trust Act and the Trust
          Agreement, the execution and delivery by the Trust of the agreements
          to which it is a party, and the performance by the Trust of its
          obligations thereunder, have been duly authorized by all necessary
          action on the part of the Trust.

               (v)    The Offered Securities (a) have been duly authorized by 
          the Trust Agreement, and (b) once duly and validly issued in 
          accordance with the Trust Agreement, will represent valid, fully 
          paid and, subject to the qualifications set forth in clause (viii)
          below, non-assessable undivided beneficial interests in the assets
          of the Trust.

               (vi)   Once duly and validly issued in accordance with the Trust
          Agreement, the Offered Securities will entitle the Securityholders to
          the benefits of the Trust Agreement.

                                       28
<PAGE>

               (vii)  The Common Securities (a) have been duly authorized by
          the Trust Agreement, and (b) once duly and validly issued in
          accordance with the Trust Agreement, will represent valid, fully paid
          and non-assessable undivided beneficial interests in the assets of the
          Trust.

               (viii) The Securityholders will be entitled to the same
          limitation of personal liability extended to stockholders of private
          corporations for profit organized under the General Corporation Law of
          the State of Delaware, except that the Securityholders may be
          obligated to (a) provide indemnity and/or security in connection with
          and pay taxes or governmental charges arising from transfers or
          exchanges of certificates representing Offered Securities and the
          issuance of replacement certificates representing Offered Securities
          to the extent provided in the Trust Agreement, (b) provide security or
          indemnity in connection with requests of or directions to the Property
          Trustee to exercise its rights and powers under the Trust Agreement,
          and (c) provide indemnity in connection with violations of the Trust
          Agreement or U.S. Federal or state securities laws arising from
          transfers or exchanges of certificates representing Offered Securities
          and the issuance of replacement certificates representing Offered
          Securities.

               (ix)   Under the Delaware Business Trust Act and the Trust
          Agreement, the issuance of the Offered Securities is not subject to
          pre-emptive rights.

               (x)    No authorization, approval or other action by, and no 
          notice to or filing with, any governmental authority or regulatory 
          body of the State of Delaware is required for the issuance and sale 
          of the Offered Securities or the consummation by the Trust of the 
          transactions contemplated by the agreements to which it is a party.

               (xi)   Assuming that the Trust is treated as a grantor trust or
          partnership for federal income tax purposes, the Securityholders
          (other than those Securityholders who reside or are domiciled in the
          State of Delaware) will have no liability for income taxes imposed by
          the State of Delaware solely as a result of their participation in the
          Trust, and the Trust will not be liable for any income tax imposed by
          the State of Delaware.

                                       29
<PAGE>

               (xii)  The (a) purchase of the Subordinated Debentures by the
          Trust, (b) the distribution of the Subordinated Debentures by the
          Trust in the circumstances contemplated by the Trust Agreement, and
          (c) the execution, delivery and performance by the Trust of the
          agreements to which it is a party and the consummation of the
          transactions contemplated thereunder, will not conflict with or result
          in a breach or violation of any of the terms or provisions of the
          Certificate of Trust of the Trust or the Trust Agreement or any
          statute, rule or regulation of the State of Delaware or any
          governmental agency or body of the State of Delaware having
          jurisdiction over the Trust or any of its properties, or, to such
          counsel's knowledge, any consent or order of any court.

          (g)  The Purchasers shall have received on the Closing Date an 
opinion (in form and substance reasonably satisfactory to the Purchasers and 
their counsel), dated as of the Closing Date, of Potter Anderson & Corroon 
LLP, special counsel to the Wilmington Trust Company ("WTC") to the effect 
that:

               (i)    WTC is a Delaware banking corporation, duly formed and
          validly existing in good standing under the laws of the State of
          Delaware and has all necessary power and authority to execute, deliver
          and perform its obligations under the Trust Agreement and to act as
          Trustee thereunder.

               (ii)   The Trust Agreement has been duly executed and when
          delivered by WTC, the Trust Agreement will constitute a legal, valid
          and binding obligation of WTC enforceable against WTC in accordance
          with the terms thereof.

               (iii)  The execution and delivery of the Trust Agreement by
          WTC and the performance by WTC of its obligations thereunder have been
          duly authorized by all necessary corporate action of WTC and do not
          conflict with or result in a violation of (a) the certificate of
          incorporation or bylaws of WTC, (b) any agreement, instrument,
          judgment, order or decree known to such counsel to which WTC is a
          party or by which it or its assets are bound or (iii) any existing
          law, rule or regulation of the State of Delaware, or any existing law,
          rule or regulation of the United States of America dealing with WTC's
          banking or trust powers.

                                       30
<PAGE>

               (iv)   Neither the execution nor the delivery by WTC of the 
          Trust Agreement, nor the compliance by WTC with the terms thereof, 
          nor the consummation by WTC of any of the transactions contemplated 
          thereby, requires the consent or approval of, the giving of notice 
          to, the registration with, or the taking of any other action with 
          respect to any governmental or regulatory authority or agency of 
          the United States of America or the State of Delaware, except for 
          the filing of the Certificate of Trust with the Secretary of State 
          of the State of Delaware.

          (h)  The Purchasers shall have received on the Closing Date an 
opinion (in form and substance reasonably satisfactory to the Purchasers and 
their counsel), dated as of the Closing Date, of senior counsel to the 
Norwest Bank Minnesota, National Association ("Norwest") to the effect that:

               (i)    Norwest has been duly incorporated and is validly 
          existing as a banking corporation in good standing under the laws 
          of the jurisdiction of its incorporation;

               (ii)   Norwest has full corporate power and authority to enter 
          into and perform its obligations under the Trust Agreement, the 
          Indenture and the Guarantee; and

               (iii)  Each of the Trust Agreement, the Indenture and the 
          Guarantee has been duly authorized, executed and delivered by 
          Norwest and constitutes a valid and legally binding agreement of 
          Norwest enforceable against Norwest in accordance with its terms, 
          subject to the Enforceability Exceptions.

               (iv)   The execution and delivery by Norwest of the Trust 
          Agreement, the Indenture and the Guarantee and the performance by 
          Norwest of its obligations thereunder have been duly authorized by 
          all necessary corporate action of Norwest and do not conflict with 
          or result in a violation of (i) the charter documents or bylaws of 
          Norwest, (ii) any agreement, instrument, judgment, order or decree 
          known to such counsel to which Norwest is a party or by which it or 
          its assets are bound or (iii) any existing state or federal law, 
          rule or regulation applicable to Norwest.

               (v)    No consent, approval or authorization of, or 
          registration, declaration or filing with, any court or governmental 
          agency or body of 

                                       31
<PAGE>

          the United States of America or the State of Minnesota having 
          jurisdiction over the trust powers of Norwest is required for the 
          consummation on the part of Norwest of any of the transactions 
          contemplated in the Trust Agreement, Indenture or the Guarantee, 
          except such as have been obtained.

          (i)  The Purchasers shall have received from Debevoise & Plimpton, 
counsel for the Purchasers, such opinion or opinions, dated such Closing 
Date, with respect to the organization of the Trust and the incorporation of 
the Company, the validity of the Offered Securities delivered on such Closing 
Date, the Offering Document and other related matters as the Purchasers may 
require, and the Trust and the Company shall have each furnished to such 
counsel such documents as they request for the purpose of enabling them to 
pass upon such matters.  In rendering such opinion, Debevoise & Plimpton may 
rely as to matters governed by the laws of the states in which such counsel 
is not licensed to practice, upon the opinions of local counsel.

          (j)  The Purchasers shall have received a certificate, dated such 
Closing Date, of a Trustee of the Trust and the President or any 
Vice-President and a principal financial or accounting officer of the Company 
in which such Trustee or officers, to their knowledge after reasonable 
investigation, shall state that the representations and warranties of each of 
the Company and the Trust in this Agreement were true and correct when made 
and are true and correct at and as of the Closing Date, that each of the 
Company and the Trust has complied with all agreements and satisfied all 
conditions on its part to be performed or satisfied hereunder at or prior to 
the Closing Date, and that, subsequent to the dates of the most recent 
financial statements in the Exchange Act Reports there has been no material 
adverse change, nor any development or event involving a prospective material 
adverse change, in the condition (financial or other), business, properties 
or results of operations of the Company and its subsidiaries taken as a whole 
except as set forth in or contemplated by the  Offering Document or as 
described in such certificate.

          (k)  The Trust Agreement, the Guarantee and the Indenture shall 
have been executed and delivered, in each case in a form reasonably 
satisfactory to CSFBC.

          (l)  On the Closing Date, the Offered Securities shall be rated at 
least "baa3" by Moody's Investors Service, Inc. and "BBB+" by Standard and 
Poor's Ratings Services, a division of The McGraw Hill Companies, Inc. and 
the Trust shall have delivered to CSFBC a letter dated the Closing Date, from 
each such rating agency, or other evidence satisfactory to CSFBC affirming 
that the Offered Securities shall have such ratings.

                                       32
<PAGE>

     The Trust and the Company will furnish the Purchasers with such 
conformed copies of such opinions, certificates, letters and documents as the 
Purchasers may reasonably request. CSFBC may in its sole discretion waive on 
behalf of the Purchasers compliance with any conditions to the obligations of 
the Purchasers hereunder.

     7.  INDEMNIFICATION AND CONTRIBUTION.  (a) The Trust and the Company 
will indemnify and hold harmless each Purchaser against any losses, claims, 
damages or liabilities, joint or several, to which such Purchaser may become 
subject, under the Securities Act or the Exchange Act or otherwise, insofar 
as such losses, claims, damages or liabilities (or actions in respect 
thereof) arise out of or are based upon any untrue statement or alleged 
untrue statement of any material fact contained or incorporated by reference 
in the Offering Document or any amendment or supplement thereto, or arise out 
of or are based upon the omission or alleged omission to state therein a 
material fact required to be stated therein or necessary in order to make the 
statements therein, in the light of the circumstances under which they were 
made, not misleading, and will reimburse each Purchaser for any legal or 
other expenses reasonably incurred by such Purchaser in connection with 
investigating or defending any such loss, claim, damage, liability or action 
as such expenses are incurred; provided, however, that neither the Trust nor 
the Company will be liable in any such case to the extent that any such loss, 
claim, damage or liability arises out of or is based upon an untrue statement 
or alleged untrue statement in or omission or alleged omission from any of 
such documents in reliance upon and in conformity with written information 
furnished to the Company by any Purchaser through CSFBC specifically for use 
therein, it being understood and agreed that the only such information 
consists of the information described as such in subsection (b) below; and 
provided, further, that with respect to any untrue statement or alleged 
untrue statement in or omission or alleged omission from any preliminary 
offering circular which was corrected in the final offering circular, or any 
amendment or supplement thereto, the indemnity agreement contained in this 
subsection (a) shall not inure to the benefit of any Purchaser that sold the 
Offered Securities concerned to the person asserting any such losses, claims, 
damages or liabilities, to the extent that such sale was an initial resale by 
such Purchaser and any such loss, claim, damage or liability of such 
Purchaser results from the fact that there was not sent or given to such 
person, at or prior to the written confirmation of the sale of such Offered 
Securities to such person, a copy of the Offering Document (exclusive of any 
material included therein but not attached thereto) if the Company had 
previously furnished copies thereof to such Purchaser in requisite quantity 
and on a timely basis to permit such sending.

          (b)  Each Purchaser will severally and not jointly indemnify and 
hold harmless each of the Trust and the Company against any losses, claims, 
damages or 

                                       33
<PAGE>

liabilities to which the Company may become subject, under the Securities Act 
or the Exchange Act or otherwise, insofar as such losses, claims, damages or 
liabilities (or actions in respect thereof) arise out of or are based upon 
any untrue statement or alleged untrue statement of any material fact 
contained in the Offering Document, or any amendment or supplement thereto, 
or any related preliminary offering circular, or arise out of or are based 
upon the omission or the alleged omission to state therein a material fact 
necessary in order to make the statements therein, in the light of the 
circumstances under which they were made, not misleading, in each case to the 
extent, but only to the extent, that such untrue statement or alleged untrue 
statement or omission or alleged omission was made in reliance upon and in 
conformity with written information furnished to the Company by such 
Purchaser through CSFBC specifically for use therein, and will reimburse any 
legal or other expenses reasonably incurred by the Company in connection with 
investigating or defending any such loss, claim, damage, liability or action 
as such expenses are incurred, it being understood and agreed that the only 
such information furnished by any Purchaser consists of the following 
information in the Offering Document furnished on behalf of each Purchaser:  
the last paragraph at the bottom of the cover page concerning the terms of 
the offering by the Purchasers, the legend concerning over-allotments and 
stabilizing on the inside front cover page and the third sentence of the 
second paragraph, the second sentence of the sixth paragraph and the eighth 
paragraph under the caption "Plan of Distribution."

          (c)  Promptly after receipt by an indemnified party under this 
Section of notice of the commencement of any action, such indemnified party 
will, if a claim in respect thereof is to be made against the indemnifying 
party under subsection (a) or (b) above, notify the indemnifying party of the 
commencement thereof; but the omission so to notify the indemnifying party 
will not relieve it from any liability which it may have to any indemnified 
party otherwise than under subsection (a) or (b) above. In case any such 
action is brought against any indemnified party and it notifies the 
indemnifying party of the commencement thereof, the indemnifying party will 
be entitled to participate therein and, to the extent that it may wish, 
jointly with any other indemnifying party similarly notified, to assume the 
defense thereof, with counsel satisfactory to such indemnified party (who 
shall not, except with the consent of the indemnified party, be counsel to 
the indemnifying party), and after notice from the indemnifying party to such 
indemnified party of its election so to assume the defense thereof, the 
indemnifying party will not be liable to such indemnified party under this 
Section for any legal or other expenses subsequently incurred by such 
indemnified party in connection with the defense thereof other than 
reasonable costs of investigation. No indemnifying party shall, without the 
prior written consent of the indemnified party, effect any settlement of any 
pending or threatened action in respect of which any indemnified party is or 
could have been a party and indemnity could have been sought 

                                       34
<PAGE>

hereunder by such indemnified party unless such settlement includes an 
unconditional release of such indemnified party from all liability on any 
claims that are the subject matter of such action.

          (d)  If the indemnification provided for in this Section is 
unavailable or insufficient to hold harmless an indemnified party under 
subsection (a) or (b) above, then each indemnifying party shall contribute to 
the amount paid or payable by such indemnified party as a result of the 
losses, claims, damages or liabilities referred to in subsection (a) or (b) 
above (i) in such proportion as is appropriate to reflect the relative 
benefits received by the Company on the one hand and the Purchasers on the 
other from the offering of the Offered Securities; or (ii) if the allocation 
provided by clause (i) above is not permitted by applicable law, in such 
proportion as is appropriate to reflect not only the relative benefits 
referred to in clause (i) above but also the relative fault of the Trust and 
the Company on the one hand and the Purchasers on the other in connection 
with the statements or omissions which resulted in such losses, claims, 
damages or liabilities as well as any other relevant equitable 
considerations. The relative benefits received by the Trust and the Company 
on the one hand and the Purchasers on the other shall be deemed to be in the 
same proportion as the total net proceeds from the offering (before deducting 
expenses) received by the Trust and the Company bear to the total 
compensation received by the Purchasers from the Company under this 
Agreement. The relative fault shall be determined by reference to, among 
other things, whether the untrue or alleged untrue statement of a material 
fact or the omission or alleged omission to state a material fact relates to 
information supplied by Trust and the Company or the Purchasers and the 
parties' relative intent, knowledge, access to information and opportunity to 
correct or prevent such untrue statement or omission. The amount paid by an 
indemnified party as a result of the losses, claims, damages or liabilities 
referred to in the first sentence of this subsection (d) shall be deemed to 
include any legal or other expenses reasonably incurred by such indemnified 
party in connection with investigating or defending any action or claim which 
is the subject of this subsection (d). Notwithstanding the provisions of this 
subsection (d), no Purchaser shall be required to contribute any amount in 
excess of the amount by which the total price at which the Offered Securities 
purchased by it were resold exceeds the amount of any damages which such 
Purchaser has otherwise been required to pay by reason of such untrue or 
alleged untrue statement or omission or alleged omission. The Purchasers' 
obligations in this subsection (d) to contribute are several in proportion to 
their respective purchase obligations and not joint.

          (e)  The obligations of the Trust and the Company under this 
Section shall be in addition to any liability which the Trust and the Company 
may otherwise have and shall extend, upon the same terms and conditions, to 
each person, if any, who 

                                       35
<PAGE>

controls any Purchaser within the meaning of the Securities Act or the 
Exchange Act; and the obligations of the Purchasers under this Section shall 
be in addition to any liability which the respective Purchasers may otherwise 
have and shall extend, upon the same terms and conditions, to each officer 
and director of the Company, to each Trustee of the Trust and to each person, 
if any, who controls the Trust or the Company within the meaning of the 
Securities Act or the Exchange Act.

     8.  DEFAULT OF PURCHASERS.  If any Purchaser or Purchasers default in 
their obligations to purchase Offered Securities hereunder on the Closing 
Date and the aggregate number of shares of Offered Securities that such 
defaulting Purchaser or Purchasers agreed, but failed, to purchase does not 
exceed 10% of the total number of Offered Securities that the Purchasers are 
obligated to purchase on such Closing Date, CSFBC may make arrangements 
satisfactory to the Trust and the Company for the purchase of such Offered 
Securities by other persons, including any of the Purchasers, but if no such 
arrangements are made by such Closing Date, the non-defaulting Purchasers 
shall be obligated severally, in proportion to their respective commitments 
hereunder, to purchase the Offered Securities that such defaulting Purchasers 
agreed but failed to purchase on such Closing Date.  If any Purchaser or 
Purchasers so default and the aggregate number of shares of Offered 
Securities with respect to which such default or defaults occur exceeds 10% 
of the total number of shares of Offered Securities that the Purchasers are 
obligated to purchase on such Closing Date and arrangements satisfactory to 
CSFBC, the Trust and the Company for the purchase of such Offered Securities 
by other persons are not made within 36 hours after such default, this 
Agreement will terminate without liability on the part of any non-defaulting 
Purchaser, the Trust or the Company, except as provided in Section 9.  As 
used in this Agreement, the term "Purchaser" includes any person substituted 
for a Purchaser under this Section.  Nothing herein will relieve a defaulting 
Purchaser from liability for its default.

     9.  SURVIVAL OF CERTAIN REPRESENTATIONS AND OBLIGATIONS.  The respective 
indemnities, agreements, representations, warranties and other statements of 
the Trust and its Trustees and the Company and its officers and of the 
several Purchasers set forth in or made pursuant to this Agreement will 
remain in full force and effect, regardless of any investigation, or 
statement as to the results thereof, made by or on behalf of any Purchaser, 
the Trust, the Company or any of their respective representatives, trustees, 
officers or directors or any controlling person, and will survive delivery of 
and payment for the Offered Securities.  If this Agreement is terminated 
pursuant to Section 8 or if for any reason the purchase of the Offered 
Securities by the Purchasers is not consummated, the Company shall remain 
responsible for the expenses to be paid or reimbursed by it pursuant to 
Section 5 and 

                                       36
<PAGE>

the respective obligations of the Trust, the Company and the Purchasers 
pursuant to Section 7 shall remain in effect, and if any Offered Securities 
have been purchased hereunder, the representations and warranties in Section 
2 and all obligations under Section 5 shall also remain in effect.  If the 
purchase of the Offered Securities by the Purchasers is not consummated for 
any reason other than solely because of the termination of this Agreement 
pursuant to Section 8 or the occurrence of any event specified in clause 
(iv), (v) or (vi) of Section 6(b), the Company will reimburse the Purchasers 
for all out-of-pocket expenses (including fees and disbursements of counsel) 
reasonably incurred by them in connection with the offering of the Offered 
Securities.

     10.  NOTICES.  All communications hereunder will be in writing and, if 
sent to the Purchasers, will be mailed, delivered or telegraphed and 
confirmed to the Purchasers, c/o Credit Suisse First Boston Corporation, 
Eleven Madison Avenue, New York, N.Y.  10010-3629, Attention: Investment 
Banking Department--Transactions Advisory Group, or, if sent to the Trust or 
the Company will be mailed, delivered or telegraphed and confirmed to it at 
Zenith National Insurance Corp., 21255 Califa Street, Woodland Hills, 
California 91367-5021, Attention: President (with a copy to Secretary); 
PROVIDED, HOWEVER, that any notice to a Purchaser pursuant to Section 7 will 
be mailed, delivered or telegraphed and confirmed to such Purchaser.

     11.  SUCCESSORS.  This Agreement will inure to the benefit of and be 
binding upon the parties hereto and their respective successors and the 
trustees, officers and directors and controlling persons referred to in 
Section 7, and no other person will have any right or obligation hereunder, 
except that Securityholders shall be entitled to enforce the agreements for 
their benefit contained in the second and third sentences of Section 5(b) 
hereof against the Company as if such Securityholders were parties hereto.

     12.  REPRESENTATION OF PURCHASERS.  CSFBC will act for the several 
Purchasers in connection with this financing, and any action under this 
Agreement taken by the Purchasers jointly or by CSFBC will be binding upon 
all the Purchasers.

     13.  COUNTERPARTS.  This Agreement may be executed in any number of 
counterparts, each of which shall be deemed to be an original, but all such 
counterparts shall together constitute one and the same Agreement.

     14.  APPLICABLE LAW.  This Agreement shall be governed by, and construed 
in accordance with, the laws of the State of New York, without regard to 
principles of conflicts of laws.

                                       37
<PAGE>

     Each of the parties hereto hereby submits to the non-exclusive 
jurisdiction of the Federal and state courts in the Borough of Manhattan in 
The City of New York in any suit or proceeding arising out of or relating to 
this Agreement or the transactions contemplated hereby.

                                       38
<PAGE>

     If the foregoing is in accordance with the Purchasers' understanding of 
our agreement, kindly sign and return to the Trust one of the counterparts 
hereof, whereupon it will become a binding agreement among the Trust, the 
Company and the several Purchasers in accordance with its terms.

                    Very truly yours,


                    ZENITH NATIONAL INSURANCE CAPITAL TRUST I


                         By:  ZENITH NATIONAL INSURANCE CORP.,
                                   its Sponsor


                              By:  /s/ Stanley R. Zax
                                   ------------------------------
                                   Name: Stanley R. Zax
                                   Title: Chairman and President



                    ZENITH NATIONAL INSURANCE CORP.



                         By:  /s/ Stanley R. Zax
                              ---------------------------
                              Name: Stanley R. Zax
                              Title: Chairman and President



                                       39
<PAGE>

The foregoing Purchase Agreement
is hereby confirmed and accepted as of
the date first above written.

     CREDIT SUISSE FIRST BOSTON CORPORATION
     BANCAMERICA ROBERTSON STEPHENS
     DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION

     By CREDIT SUISSE FIRST BOSTON CORPORATION



          By /s/ William J. Egan
            ------------------------------
          Name:  William J. Egan
          Title:  Managing Director






                                       40
<PAGE>

                                      SCHEDULE A


<TABLE>
<CAPTION>

                                                                     Liquidation
                                                                      Amount of
                     Purchaser                                   Capital Securities
                     ---------                                   ------------------
<S>                                                              <C>
Credit Suisse First Boston Corporation                               $45,000,000

BancAmerica Robertson Stephens                                       $15,000,000

Donaldson, Lufkin & Jenrette Securities Corporation                  $15,000,000
                                                                     -----------
Total                                                                $75,000.000
                                                                     -----------
                                                                     -----------
</TABLE>



                                       41

<PAGE>

                                                                   No. 4270-0003










                             WORKERS' COMPENSATION
                                  QUOTA SHARE
                             REINSURANCE AGREEMENT

                                    between

                            ZENITH INSURANCE COMPANY

                                      and

                         AMERICAN RE-INSURANCE COMPANY








<PAGE>


                                                                   No. 4270-0003

                              TABLE OF CONTENTS
<TABLE>
<CAPTION>

ARTICLE                                          PAGE
- -------                                          ----
<S>           <C>                               <C>
I              APPLICATION OF AGREEMENT          1

II             COVER                             1

III            LIMITS OF COVER                   1

IV             EXCLUSIONS                        2

V              DEFINITIONS                       3

VI             LOSSES AND LOSS ADJUSTMENT
               EXPENSES                          4

VII            PREMIUM                           4

VIII           CEDING COMMISSION                 5

IX             REPORTS AND REMITTANCES           6

X              WARRANTY                          7

XI             INSOLVENCY CLAUSE                 7

XII            ACCESS TO RECORDS                 7

XIII           RESERVES AND TAXES                8

XIV            OFFSET AND SECURITY CLAUSE        8

XV             COMMENCEMENT AND
               TERMINATION                       9

XVI            COMMUTATION                       9
</TABLE>

<PAGE>

                                                                   No. 4270-0003

                           WORKERS' COMPENSATION
                                QUOTA SHARE
                           REINSURANCE AGREEMENT

THIS AGREEMENT made and entered into by and between ZENITH INSURANCE COMPANY, 
Woodland Hills, California (hereinafter referred to as the "Company") and 
AMERICAN RE-INSURANCE COMPANY, Princeton, New Jersey (hereinafter referred 
to as the "Reinsurer").

WITNESSETH:

The Reinsurer hereby reinsures the Company to the extent and on the terms and 
conditions and subject to the exceptions, exclusions and limitations 
hereinafter set forth and nothing hereinafter shall in any manner create any 
obligations or establish any rights against the Reinsurer in favor of any 
third parties or any persons not parties to this Agreement.

                                ARTICLE I

APPLICATION OF AGREEMENT

This Agreement applies to all business written by the Company and classified 
as Workers Compensation and Employers Liability in the state of Florida, 
except as excluded under Article IV herein.

                               ARTICLE II

COVER

The Company shall cede to the Reinsurer and the Reinsurer shall accept from 
the Company a 20% quota share participation of the net retained insurance 
liability of the Company, as respects policies in force at 12:01 A.M., April 
1, 1998 and new and renewal policies issued thereafter except as excluded in 
Article IV, subject to the limitations set forth in Article III.

                               ARTICLE III

LIMITS OF COVER

A.      As respects policies issued by the Company, the Company shall cede to 
        the Reinsurer and the Reinsurer shall accept from the Company a 20% 
        quota share participation of the Company's net retained insurance 
        liability, subject to the limitation set forth in paragraph B., below.

                                   -1-

<PAGE>
                                                                   No. 4270-0003


B.      It is understood and agreed that in no event shall the Reinsurer's 
limit of liability exceed its pro rata share of $550,000 per 
occurrence after all other inuring reinsurance.

                                ARTICLE IV

EXCLUSIONS 

        1.     Reinsurance, except for the intracompany pooling arrangement. 
               This exclusion shall not apply to insureds who do not agree to 
               the Novation Agreement covering in force workers' compensation 
               policies from Riscorp Insurance Company and Riscorp Property 
               and Casualty Insurance Company to Zenith Insurance Company.

        2.     Risks involving a nuclear facility or nuclear material, spent 
               fuel or waste as defined in the Nuclear Incident Exclusion 
               Clause, except for the use of radioactive isotopes.

        3.     Liability of Company arising by contract, operations of law or 
               otherwise from its participation or membership, whether 
               voluntary or involuntary, in any insolvency fund. "Insolvency 
               Fund" includes any guarantee fund, insolvency fund, plan, 
               pool,  association, fund or other facility which provides for 
               the assessment of, payment by, or assumption by the company 
               of a part or the whole of any claim, debt, charge, fee or 
               other obligations of an insurer, or its successors or assigns, 
               which has been declared insolvent by any authority having 
               jurisdiction.

        4.     Pools, Associations and Syndicates.

        5.     Construction and maintenance of Caisson or Coffer Dams (except 
               earth filled Dams).

        6.     Manufacturing, packaging, handling or shipping of explosives, 
               explosive substances intended for use as an explosive, 
               ammunition, fuses, arms or fireworks.

        7.     Manufacturing, Production and Refining Petroleum or its 
               products.

        8.     Professional Sports Teams.

        9.     Railroad Operations.

       10.     Oil and Gas drilling, refining, production or manufacturing.

       11.     Underground Mining.

                                   -2-

<PAGE>
                                                                   No. 4270-0003


       12.     Tunneling Operations involving tunnels over 100 feet.

       13.     Wrecking or Demolition of buildings, structures or vessels 
               over 5 stories in height.

       14.     Asbestos, Lead Paint or other toxic substance abatement, when 
               written as such.

       15.     Maritime or Jones Act (except for USL&H).

                               ARTICLE V

DEFINITIONS

A.      The term "net retained insurance liability" as used herein means the 
        remaining portion of the Company's gross liability on the policies 
        covered hereunder after deducting all excess of loss reinsurance and 
        all pro rata reinsurance, other than the quota share reinsurance 
        provided under this Agreement.

B.      The term "occurrence" as used herein means each accident or 
        occurrence or series of accidents or occurrences, arising out of one 
        event.

C.      As respects Occupational or Other Disease under Workers' Compensation 
        and Employers' Liability policies, a loss for the purpose of this 
        Agreement shall be deemed to have occurred at the date when 
        compensability of the employee commenced, or if such date cannot be 
        definitely determined, the loss as respects such employee affected by 
        the disease, shall be deemed to have occurred at the date when the 
        claim became known to the Company, but in no event later than the 
        last day of employment during the term of the policy or policies of 
        the Company.

D.      In the event more than one employee of the same insured suffers an 
        Occupational or Other Disease of one specific kind or class during 
        the same policy year, the resulting losses to the Company shall be 
        deemed to be from one occurrence and the date of such occurrence for 
        the purpose of this Agreement shall be the inception date of the last 
        policy issued by the Company to the employer, prior to the date on 
        which the first such loss occurred, but within the Agreement year. 
        The term "Occupational Disease" shall be as defined by applicable 
        statutes or regulations.

E.      The term "Net Written Premium" as used herein means all direct 
        written premium, less premium ceded for inuring reinsurance, less 
        return premiums and dividends paid on policies that are written 
        subject to a loss sensitive dividend plan.

                                     -3-

<PAGE>
                                                                   No. 4270-0003


F.      The term "policies" as used herein means each of the Company's 
        binders, policies and contracts providing insurance and reinsurance 
        on the business reinsured under this Agreement. 

G.      The term "Agreement Year" as used herein shall be each 12 month 
        period beginning with April 1, 1998.

                               ARTICLE VI

LOSSES AND LOSS ADJUSTMENT EXPENSES

A.      Subject to the provisions of Article III, the Reinsurer, in 
        proportion to its participation, shall pay to the Company a pro rata 
        share of sums actually paid by the Company in settlement of losses 
        under its policies including amounts paid for managed care 
        arrangements, such as network access fees, bill repricing services 
        and other usual and customary managed care facilities. However, in 
        the event of the insolvency of the Company payment of loss for which 
        the Company is liable shall be made by the Reinsurer to the 
        liquidator, receiver or statutory successor of the Company in 
        accordance with the provisions of Article XI of this Agreement.

B.      Subject to the provisions of Article III, the Reinsurer shall bear in 
        proportion to its participation expenses incurred by the Company in 
        the investigation, adjustment and litigation of all claims under its 
        policies, excluding the office expenses of the Company and the 
        salaries and expenses of its officials and employees.

C.      The Reinsurer shall benefit pro rata in all salvages, discounts and 
        other recoveries.

D.      The Company has the obligation to investigate and, to the extent that 
        may be required by the policies reinsured hereunder, defend any claim 
        affecting this reinsurance and to pursue such claim to final 
        determination.

                                 ARTICLE VII

PREMIUM

A.      Within 30 days following April 1, 1998, the Company shall pay to the 
        Reinsurer 20% of the Company's unearned premium reserve on its net 
        retained insurance liability in force at 12:01 A.M., April 1, 1998 on 
        the Riscorp Insurance Company, Riscorp Property and Casualty 
        Insurance Company and Zenith Insurance Company business covered 
        hereunder.

B.      The Company shall also pay to the Reinsurer for the reinsurance 
        provided under this Agreement 20% of the Net Written Premium of the 
        Company for the new and renewal business covered hereunder, after 
        deduction of premiums paid for inuring reinsurance.

                                   -4-

<PAGE>
                                                                   No. 4270-0003


                               ARTICLE VIII

CEDING COMMISSION

A.      The Reinsurer shall make a provisional commission allowance of 35% to 
        the Company on the premiums ceded under this Agreement. The Company 
        shall debit the Reinsurer with the provisional commission allowance 
        in the monthly accounts. The provisional commission shall be subject 
        to adjustment annually, until all losses have been settled or the 
        Agreement is commuted, whereupon a final commission adjustment will 
        be made consistent with the actuarially determined losses. However, 
        the first adjustment shall be thirty-six months after the end of each 
        Agreement Year. On all return premiums the Company shall return to 
        the Reinsurer the provisional commission allowance of 35%.

B.      The ultimate commission allowance which the Reinsurer shall make to 
        the Company shall be in accordance with the following plan and shall 
        be computed on premiums earned under this Agreement:

<TABLE>
<CAPTION>

        IF THE REINSURER'S LOSS RATIO IS:       THE ULTIMATE COMMISSION SHALL BE:
        -------------------------------------------------------------------------
       <S>                                     <C>

        77% or higher                           29.1% minimum

        70% or higher but less than 77%         34.0% less a .7% decrease for
                                                each 1% increase in the
                                                Reinsurer's loss ratio down to a 
                                                29.1% commission at an 77% 
                                                loss ratio

        66% or higher but not exceeding         36% less .5% decrease for each 
        70%                                     1% increase in the Reinsurer's
                                                loss ratio down to a 34%
                                                commission at a 70% loss ratio

        60% or higher but not exceeding         40.5% less a .75% decrease for
        66%                                     each 1% increase in the 
                                                Reinsurer's loss ratio down to a 
                                                36% commission at a 66% loss
                                                ratio

        60% or less                             40.5%
</TABLE>

C.      The commission allowance which the Reinsurer makes to the Company on 
        the business transacted under this Agreement includes provision for
        all taxes, assessments and any other expenses whatsoever, except loss 
        adjustment expenses.

                                    -5-

<PAGE>
                                                                   No. 4270-0003


D.      The term "Reinsurer's loss ratio" means the "Reinsurer's losses 
        incurred" as defined in paragraph E. below, divided by "premiums 
        earned" as defined in paragraph F. below.

E.      The term "Reinsurer's Losses Incurred" as used herein shall be 
        understood to mean ceded losses (net of salvages, subrogations, 
        inuring reinsurance and Special Disability Trust Funds recovered) and
        allocated loss adjustment expenses paid by the Reinsurer under this 
        Agreement as of the effective date of calculation, plus the reserve 
        for ceded losses and allocated loss adjustment expenses outstanding 
        (including a reserve for incurred but not reported losses) as of the 
        same date, all as respects losses occurring during the Agreement Year
        under consideration on the business covered hereunder.

F.      The term "premiums earned" as used herein means the total of the 
        Reinsurer's net premiums written during the current Agreement Year, 
        plus the pro rata unearned premium at the close of the preceding 
        Agreement Year less the pro rata unearned premium at the close of the 
        current Agreement Year, said pro rata unearned premium to be 
        calculated on a daily pro rata basis.

G.      If the ultimate commission on the premiums earned during the 
        Agreement Year exceeds the commission already allowed on the premiums 
        earned, the Reinsurer shall pay the difference to the Company at 36 
        months after the end of each Agreement Year. If the commission 
        already allowed on the premiums earned exceeds the ultimate 
        commission on the premiums earned, the difference shall be refunded 
        by the Company to the Reinsurer within 30 days.

H.      Annual calculation of the ultimate commission shall continue until 
        all of the Reinsurer's Losses Incurred hereunder have been finally 
        settled.

I.      The ceding commission terms herein are subject to annual 
        renegotiation at any April 1.

                                  ARTICLE IX

REPORTS AND REMITTANCES

A.      The Company shall report monthly net written premiums, collected 
        premiums, paid loss and allocated loss adjustment expense and the 
        provisional ceding commission.

B.      The Company shall report monthly unearned premium and outstanding 
        loss reserves including provisions for IBNR. The Company shall also 
        report its unearned premium reserve at the inception of this 
        Agreement.

                                     -6-

<PAGE>
                                                                   No. 4270-0003


C.      Within thirty days after the end of each month, collected premiums 
        less the provisional commission allowance shall be paid by the 
        Company, and paid Loss and Loss Adjustment Expense shall be paid by 
        the Reinsurer, subject to the limits provided in Article III.

                                ARTICLE X

WARRANTY

The Company warrants to the Reinsurer that excess of loss reinsurance excess
of $550,000 per occurrence for its Workers Compensation business shall be 
maintained, or so deemed to be in effect and collectible for the duration of 
this Agreement and shall inure to the benefit of this Agreement whether 
collectible or not.

                               ARTICLE XI

INSOLVENCY CLAUSE

The reinsurance provided by this Agreement and each and every reinsurance 
agreement heretofore or hereafter entered into by and between the parties 
hereto shall be payable by the Reinsurer directly to the Company or to its 
liquidator, receiver or statutory successor on the basis of the liability of 
the Company under the contract or contracts reinsured without diminution 
because of the insolvency of the Company. In the event of the insolvency of 
the Company, the liquidator or receiver or statutory successor of the Company 
shall give written notice of the pendency of each claim against the Company 
on a policy or bond reinsured within a reasonable time after such claim is 
filed in the insolvency proceeding; and during the pendency of such claim, 
the Reinsurer may investigate such claim and interpose, at its own expense, 
in the proceeding where such claim is to be adjudicated any defense or 
defenses which it may deem available to the Company, its liquidator or 
receiver or statutory successor. The expense thus incurred by the Reinsurer 
shall be chargeable, subject to court approval, against the Company as part 
of the expense of liquidation to the extent of such proportionate share of 
the benefit as shall accrue to the Company solely as a result of the defense 
undertaken by the Reinsurer. The reinsurance shall be payable as set forth 
above except where this Agreement specifically provides for the payment of 
reinsurance proceeds to another party in the event of the insolvency of the 
Company.

                                   ARTICLE XII

ACCESS TO RECORDS

The Company shall place at the disposal of the Reinsurer and the Reinsurer 
shall have the right to inspect, through its authorized representatives, at 
all reasonable times during the 


                                     -7-
<PAGE>
                                                                   No. 4270-0003


currency of this Agreement and thereafter, the books, records and papers of 
the Company pertaining to the reinsurance provided hereunder and all claims 
made in connection therewith.

                                  ARTICLE XIII

RESERVES AND TAXES

A.      The Reinsurer shall maintain legal reserves with respect to unearned 
        premiums and claims hereunder.

B.      The Company will be liable for all taxes on premiums reported to the 
        Reinsurer hereunder and will reimburse the Reinsurer for such premium 
        taxes where the Reinsurer is required to pay the same.

                                  ARTICLE XIV

OFFSET AND SECURITY CLAUSE

A.      Each party hereto has the right, which may be exercised at any time, 
        to offset any amounts, whether on account of premiums or losses or 
        otherwise, due from such party to another party under this Agreement 
        or any other reinsurance agreement heretofore or hereafter entered 
        into between them, against any amounts, whether on account of 
        premiums or losses or otherwise due from the latter party to the 
        former party. The party asserting the right of offset may exercise 
        this right, whether as assuming or ceding insurer or in both roles in 
        the relevant agreement or agreements.

B.      Each party hereby assigns and pledges to the other party (or to each 
        other party, if more than one) all of its rights under this Agreement 
        to receive premium or loss payments at any time from such other party 
        ("Collateral"), to secure its premium or loss obligations to such 
        other party at any time under this agreement and any other 
        reinsurance agreement heretofore or hereinafter entered into by and 
        between them ("Secured Obligations"). If at any time a party is in 
        default under any Secured Obligation or shall be subject to any 
        liquidation, rehabilitation, reorganization or conservation 
        proceeding, each other party shall be entitled in its discretion, to 
        apply, or to withhold for the purpose of applying in due course, any 
        Collateral assigned and pledged to it by the former party and 
        otherwise to realize upon such Collateral as security for such 
        Secured Obligations.

C.      The security interest described herein, and the term "Collateral," 
        shall apply to all payments and other proceeds in respect of the 
        rights assigned and pledged. A party's security interest in 
        Collateral shall be deemed evidenced only by the counterpart of this 
        Agreement delivered to such party.


                                     -8-
<PAGE>
                                                                   No. 4270-0003


D.      Each right under this Article is a separate and independent right, 
        exercisable, without notice or demand, alone or together with other 
        rights, in the sole election of the party entitled thereto, and no 
        waiver, delay, or failure to exercise, in respect of any right, shall 
        constitute a waiver of any other right. The provisions of this 
        Article shall survive any cancellation or other termination of this 
        Agreement.

                                  ARTICLE XV

COMMENCEMENT AND TERMINATION

A.      This Agreement shall take effect as of 12:01 A.M., April 1, 1998 and 
        is entered into for an unlimited period but either party may 
        terminate this Agreement at March 31, 1999 or any subsequent March 31 
        thereafter, by giving not less than 90 days notice in writing by 
        certified letter.

B.      At termination of this Agreement, the Reinsurer shall be relieved of 
        all liability hereunder for losses occurring subsequent to the 
        termination date for which the Reinsurer shall return the unearned 
        premium, if any, as of the termination date.

C.      This Agreement may be renewed and/or extended for successive 12-month 
        periods at any April 1 on terms to be agreed by the parties hereto. 
        Either party may notify the other party of its desire to renew or 
        extend this Agreement by written notice to the other party prior to 
        any April 1.

                                  ARTICLE XVI

COMMUTATION

Either party may elect to commute the liability of the Reinsurer twelve 
months after termination or any time thereafter. Such commutation shall be 
effected by a return to the Company of the commuted value (to be actuarially 
determined and agreed by the Company and the Reinsurer) of outstanding losses.


                                     -9-
<PAGE>

                                                                   No. 4270-0003


IN WITNESS WHEREOF the parties hereto have caused this Agreement to be 
executed in duplicate this 13th day of October, 1998.


ACCEPTED:  20% PART OF 100%


ZENITH INSURANCE COMPANY


/s/  John J. Tickner
- ----------------------------------
     Senior Vice-President             
                                             AMERICAN RE-INSURANCE COMPANY


                                             /s/  William P. Franz
                                             ----------------------------------
                                                                 Vice President


                                     -10-


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 7
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<DEBT-HELD-FOR-SALE>                           727,028
<DEBT-CARRYING-VALUE>                           38,395
<DEBT-MARKET-VALUE>                             40,100
<EQUITIES>                                      56,099
<MORTGAGE>                                           0
<REAL-ESTATE>                                        0
<TOTAL-INVEST>                               1,086,849
<CASH>                                           8,581
<RECOVER-REINSURE>                             482,729
<DEFERRED-ACQUISITION>                          21,885
<TOTAL-ASSETS>                               2,008,059
<POLICY-LOSSES>                              1,209,505
<UNEARNED-PREMIUMS>                            168,394
<POLICY-OTHER>                                       0
<POLICY-HOLDER-FUNDS>                                0
<NOTES-PAYABLE>                                 85,381
                                0
                                          0
<COMMON>                                        24,865
<OTHER-SE>                                     324,578
<TOTAL-LIABILITY-AND-EQUITY>                 2,008,059
                                     392,489
<INVESTMENT-INCOME>                             42,108
<INVESTMENT-GAINS>                               8,338
<OTHER-INCOME>                                  31,428
<BENEFITS>                                     280,199
<UNDERWRITING-AMORTIZATION>                     74,696
<UNDERWRITING-OTHER>                            58,076
<INCOME-PRETAX>                                 27,820
<INCOME-TAX>                                     9,620
<INCOME-CONTINUING>                             18,200
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    18,200
<EPS-PRIMARY>                                     1.07
<EPS-DILUTED>                                     1.06
<RESERVE-OPEN>                                       0
<PROVISION-CURRENT>                                  0
<PROVISION-PRIOR>                                    0
<PAYMENTS-CURRENT>                                   0
<PAYMENTS-PRIOR>                                     0
<RESERVE-CLOSE>                                      0
<CUMULATIVE-DEFICIENCY>                              0
        

</TABLE>


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