JACOBS ENGINEERING GROUP INC /DE/
10-Q, 1995-05-11
HEAVY CONSTRUCTION OTHER THAN BLDG CONST - CONTRACTORS
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<PAGE>
 
                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                              Quarterly Report on

                                   FORM 10-Q

(Mark one)
[X]  Quarterly Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934
     For the quarterly period ended March 31, 1995
                                    --------------

[_]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934
     For the transition period from_______ to _______

Commission File Number 1-7463



                         JACOBS ENGINEERING GROUP INC.
- --------------------------------------------------------------------------------
            (Exact name of Registrant as specified in its charter)



                Delaware                                  95-4081636
- --------------------------------------------------------------------------------
        (State of incorporation)         (I.R.S. employer identification number)



251 South Lake Avenue, Pasadena, California                  91101
- --------------------------------------------------------------------------------
 (Address of principal executive offices)                  (Zip code)



                               (818) 449 - 2171
- --------------------------------------------------------------------------------
              (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:

                             [X] YES  -  [_] NO

Number of shares of common stock outstanding at May 11, 1995:  25,253,088

                                     Page 1
<PAGE>
 
                         JACOBS ENGINEERING GROUP INC.

                               INDEX TO FORM 10-Q
<TABLE>
<CAPTION>
                                                                        Page No.
- --------------------------------------------------------------------------------
<S>                                                                     <C> 
   Part I - Financial Information
       Item 1.  Financial Statements:
                   Consolidated Condensed Balance
                     Sheets as of March 31, 1995
                     and September 30, 1994                                3
 
                   Consolidated Condensed Statements
                     of Income for the Three Months
                     and Six Months Ended March 31,
                     1995 and 1994                                         4
 
                   Consolidated Condensed Statements of
                     Cash Flows for the Six Months
                     Ended March 31, 1995 and 1994                         5
 
                   Notes to Consolidated Condensed
                     Financial Statements                              6 - 7
 
       Item 2.  Management's Discussion and Analysis of
                  Financial Condition and Results of
                  Operations                                          8 - 10
 
   Part II - Other Information
       Item 4.  Submission of Matters to a Vote
                  of Security Holders                                     11
 
       Item 6.  Exhibits and Reports on Form 8-K                          12
 
   Signatures                                                             12
 
</TABLE>

                                     Page 2
<PAGE>
 
PART I - FINANCIAL INFORMATION
ITEM 1.    FINANCIAL STATEMENTS

                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                     CONSOLIDATED CONDENSED BALANCE SHEETS
                    AT MARCH 31, 1995 AND SEPTEMBER 30, 1994
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                      1995           1994
                                                  ------------   ------------
<S>                                               <C>            <C>
ASSETS
  Current Assets:
   Cash and cash equivalents                      $ 21,741,600   $ 45,611,600
   Marketable securities                             2,708,700      2,896,900
   Receivables                                     291,938,600    288,095,200
   Deferred income taxes                            28,126,000     27,546,100
   Prepaid expenses and other                        2,670,700      3,334,800
                                                  ------------   ------------
     Total current assets                          347,185,600    367,484,600
                                                  ------------   ------------
  Property, Equipment and
   Improvements, Net                                58,766,000     60,002,700
                                                  ------------   ------------
  Other Noncurrent Assets:
   Goodwill, net                                    38,241,800     38,641,200
   Other                                            44,141,700     38,235,700
                                                  ------------   ------------
     Total other noncurrent assets                  82,383,500     76,876,900
                                                  ------------   ------------
                                                  $488,335,100   $504,364,200
                                                  ============   ============

LIABILITIES AND STOCKHOLDERS' EQUITY
  Current Liabilities:
   Notes payable                                  $ 14,350,700   $  9,238,100
   Accounts payable                                 58,903,200     93,117,100
   Accrued liabilities                             106,239,700    102,205,600
   Customers' advances in excess
     of related revenues                            53,709,100     47,369,300
   Income taxes payable                              8,837,000      8,469,600
   Deferred income taxes                             1,027,700      1,027,700
                                                  ------------   ------------
     Total current liabilities                     243,067,400    261,427,400
                                                  ------------   ------------
  Long-term Debt                                    10,000,000     25,000,000
                                                  ------------   ------------
  Deferred Gains on Real Estate Transactions         2,255,000      2,665,000
                                                  ------------   ------------
  Other Deferred Liabilities                        14,660,100     14,838,500
                                                  ------------   ------------
  Commitments and Contingencies
  Stockholders' Equity:
   Capital stock:
     Preferred stock, $1 par value,
       authorized - 1,000,000 shares,
       issued and outstanding - none                         -              -
     Common stock, $1 par value,
       authorized - 60,000,000 shares,
       issued and outstanding -
       25,246,488 and 25,094,874 shares,
       respectively                                 25,246,500     25,094,900
   Additional paid-in capital                       39,514,800     37,251,400
   Retained earnings                               150,874,700    136,205,600
   Other                                             2,716,600      1,881,400
                                                  ------------   ------------
       Total stockholders' equity                  218,352,600    200,433,300
                                                  ------------   ------------
                                                  $488,335,100   $504,364,200
                                                  ============   ============
</TABLE>
See the accompanying notes.

                                     Page 3
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                  CONSOLIDATED CONDENSED STATEMENTS OF INCOME
                                  (UNAUDITED)
<TABLE>
<CAPTION>
 
 
                                   For the Three Months             For the Six Months
                                      Ended March 31,                 Ended March 31,
                                ----------------------------    ----------------------------
                                    1995           1994             1995           1994
                                -------------  -------------    -------------  -------------  
<S>                             <C>             <C>             <C>             <C>
Revenues                        $396,746,400    $272,646,100    $809,102,100    $533,256,000
                                ------------    ------------    ------------    ------------
 
Costs and Expenses:
 Direct costs of contracts       350,935,700     238,162,700     719,523,300     464,587,500
 Selling, general and
   administrative expenses        33,780,100      22,534,800      65,520,500      45,042,500
 Interest (income)
   expense, net                      (13,300)        (25,200)         31,900        (215,900)
 Other income, net                  (461,600)       (197,600)       (565,000)       (668,500)
                                ------------    ------------    ------------    ------------
                                 384,240,900     260,474,700     784,510,700     508,745,600
                                ------------    ------------    ------------    ------------
 
   Income before taxes            12,505,500      12,171,400      24,591,400      24,510,400
                                ------------    ------------    ------------    ------------
Provision for Income Taxes         4,953,500       4,871,400       9,739,400       9,930,400
                                ------------    ------------    ------------    ------------
Net Income                      $  7,552,000    $  7,300,000    $ 14,852,000    $ 14,580,000
                                ============    ============    ============    ============
 
Net Income Per Share                    $.30            $.29            $.59            $.58
                                ============    ============    ============    ============
</TABLE>

See the accompanying notes.

                                     Page 4
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
                FOR THE SIX MONTHS ENDED MARCH 31, 1995 AND 1994
                                  (UNAUDITED)
<TABLE>
<CAPTION>
 
                                                    1995            1994
                                                -------------   -------------
<S>                                             <C>             <C>
Cash Flows from Operating Activities:
 Net income                                     $ 14,852,000    $ 14,580,000
 Adjustments to reconcile net income
  to net cash flows from operations:
   Depreciation and amortization                   7,505,600       4,907,100
   Amortization of deferred gains                   (410,000)       (483,000)
   Gains on disposals of property,
     equipment and other assets                     (228,200)     (1,057,900)
   Changes in assets and liabilities, net:
     Receivables                                  (4,324,200)       (460,200)
     Prepaid expenses and other                      678,000         (54,400)
     Accounts payable                            (34,288,000)    (17,434,700)
     Accrued liabilities                           3,691,700       1,696,200
     Customers' advances                           6,256,500        (229,600)
     Income taxes payable                            357,900      (1,071,100)
   Deferred income taxes                            (579,900)     (1,541,000)
                                                ------------    ------------
 Net cash used                                    (6,488,600)     (1,148,600)
                                                ------------    ------------
 
Cash Flows from Investing Activities:
 Additions to property and equipment, net
  of disposals                                    (5,240,300)    (15,572,800)
 Net increase in other noncurrent assets          (2,312,200)     (3,027,200)
 Proceeds from sales of marketable
  securities                                         188,200      17,559,800
 Net increase in investments                      (2,727,400)     (4,692,800)
                                                ------------    ------------
 Net cash used                                   (10,091,700)     (5,733,000)
                                                ------------    ------------
 
Cash Flows from Financing Activities:
 Exercise of stock options                         3,183,400       4,094,900
 Bank borrowings (repayments), net               (10,233,400)      3,437,100
 Other, net                                         (320,800)              -
                                                ------------    ------------
 Net cash provided (used)                         (7,370,800)      7,532,000
                                                ------------    ------------
 
Effect of Exchange Rate Changes                       81,100         (38,200)
                                                ------------    ------------
Increase (decrease) in Cash and Cash
 Equivalents                                     (23,870,000)        612,200
Cash and Cash Equivalents at the Beginning
 of the Period                                    45,611,600      20,515,000
                                                ------------    ------------
Cash and Cash Equivalents at the End
 of the Period                                  $ 21,741,600    $ 21,127,200
                                                ============    ============
 
</TABLE>
See the accompanying notes.

                                     Page 5
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
              NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS
                                 MARCH 31, 1995

1.   The accompanying consolidated condensed financial statements and financial
     information included herein have been prepared by the Company, without
     audit, pursuant to the interim period reporting requirements of Form 10-Q.
     Consequently, certain information and note disclosures normally included in
     financial statements prepared in accordance with generally accepted
     accounting principles have been condensed or omitted.  Readers of this
     report should refer to the consolidated financial statements and the notes
     thereto incorporated into the Company's latest Annual Report on Form 10-K.

     In the opinion of the Company, the accompanying unaudited consolidated
     condensed financial statements contain all adjustments (consisting of only
     normal recurring adjustments) necessary for the fair presentation of its
     consolidated financial position at March 31, 1995 and September 30, 1994,
     its consolidated results of operations for the three months and six months
     ended March 31, 1995 and 1994, and its consolidated cash flows for the six
     months ended March 31, 1995 and 1994.

     The Company's interim results of operations are not necessarily indicative
     of the results to be expected for the full year.

2.   Included in receivables at March 31, 1995 and September 30, 1994 were
     unbilled amounts totalling $71,774,000 and $70,252,200, respectively.

3.   Property, equipment and improvements are stated at cost and consisted of
     the following at March 31, 1995 and September 30, 1994:
<TABLE>
<CAPTION>
                                              March 31,     September 30,
                                                 1995           1994
                                             ------------   -------------
<S>                                          <C>            <C>
      Land                                   $  6,963,600    $  6,963,600
      Buildings                                24,922,800      24,549,500
      Equipment                                78,416,600      74,687,100
      Leasehold improvements                   12,808,300      11,948,800
                                             ------------    ------------
                                              123,111,300     118,149,000
        Less - accumulated depreciation
           and amortization                    64,345,300      58,146,300
                                             ------------    ------------
                                             $ 58,766,000    $ 60,002,700
                                             ============    ============
</TABLE>

                                     Page 6
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
              NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS
                                 MARCH 31, 1995

4.   Other assets consisted of the following at March 31, 1995 and September 30,
     1994:
<TABLE>
<CAPTION>
                                         March 31,     September 30,
                                            1995           1994
                                        ------------   -------------
<S>                                     <C>            <C>
 
      Prepaid pension costs              $11,707,800     $11,378,800
      Cash surrender value of life
        insurance policies                14,409,700      11,676,700
      Investments                         11,542,800       8,202,100
      Miscellaneous                        6,481,400       6,978,100
                                         -----------     -----------
                                         $44,141,700     $38,235,700
                                         ===========     ===========
</TABLE>
5.   During the six months ended March 31, 1995 and 1994, the Company made cash
     payments of approximately $947,500 and $519,000, respectively, for interest
     and approximately $9,493,000 and $11,521,000, respectively, for income
     taxes.

6.   Net income per share for the three and six months ended March 31, 1995 and
     1994 has been computed based upon the weighted average number of shares of
     common stock and, if dilutive, common stock equivalents outstanding as
     follows:
<TABLE>
<CAPTION>
                            Three Months Ended         Six Months Ended
                                 March 31,                 March 31,
                          -----------------------   -----------------------
                             1995         1994         1995         1994
                          ----------   ----------   ----------   ----------
<S>                       <C>          <C>          <C>          <C>
  Average number of
   shares of common
   stock outstanding      25,122,000   24,881,500   25,103,100   24,832,900
  Average number of
   shares of common
   stock equivalents
   outstanding                47,400      300,200      110,200      315,200
                          ----------   ----------   ----------   ----------
                          25,169,400   25,181,700   25,213,300   25,148,100
                          ==========   ==========   ==========   ==========
</TABLE>

                                     Page 7
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                                 MARCH 31, 1995

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

The following discussion should be read in conjunction with management's
discussion and analysis of financial condition and results of operations
incorporated by reference into the Company's latest Annual Report on Form 10-K.

Results of Operations
- ---------------------

Revenues for the three months ended March 31, 1995 (the "second quarter of
fiscal 1995") were $396.7 million; this was $124.1 million more than the amount
for the three months ended March 31, 1994 (the "second quarter of fiscal 1994").
Most of the increase was attributable to the operations of Jacobs - Sirrine
Engineers (the operating division formerly known as CRS Sirrine Engineers) and
CRSS Constructors, two businesses the Company acquired during the fourth quarter
of fiscal 1994 (together, the "CRSS acquisition").  Revenues from engineering
services for the second quarter of fiscal 1995 increased 29.0% as compared to
the second quarter of fiscal 1994.  The Company billed approximately 3.0 million
professional services hours to projects during the second quarter of fiscal
1995; this was 0.7 million more hours than were billed during the corresponding
period last year.  Revenues from construction and maintenance services for the
second quarter of fiscal 1995 were 55.5% higher as compared to the second
quarter of fiscal 1994.

For the six months ended March 31, 1995, revenues totaled $809.1 million; this
was $275.8 million more than the amount for the six months ended March 31, 1994.
Most of the increase was attributable to the CRSS acquisition.  Revenues from
engineering services for the six months ended March 31, 1995 were 36.2% higher
than the amount for the corresponding period last year.  The Company billed
approximately 5.8 million professional services hours to projects during the six
months ended March 31, 1995; this was 1.3 million more hours than were billed
during the corresponding period last year.  Revenues from construction and
maintenance services for the six months ended March 31, 1995 were 60.7% higher
as compared to the corresponding period last year.

As a percent of revenues, direct costs of contracts were 88.5% for the second
quarter of fiscal 1995, as compared to 87.4% for the second quarter of fiscal
1994.  The percentage relationship between direct costs of contracts and
revenues will fluctuate between reporting periods depending on a variety of
factors including the mix of business during the reporting periods being
compared, as well as the level of margins earned from the various services
provided by the Company.  In general, the increase in this percentage
relationship during the current quarter as compared to the corresponding
period last year was due to a higher level of construction and maintenance
services relative to engineering services.

For the six months ended March 31, 1995, direct costs of contracts were 88.9% of
revenues, as compared to 87.1% for the six months ended March 31, 1994.  The
increase in this percentage relationship during the current six-month period as
compared to the corresponding period last year was also due primarily to the
effects of an increasing portion of the Company's total business volume coming
from construction and maintenance services relative to engineering services.

                                     Page 8
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                                 MARCH 31, 1995

Selling, general and administrative ("SG & A") expenses for the second quarter
of fiscal 1995 totalled $33.8 million; this was $11.2 million more than the
amount for the second quarter of fiscal 1994.  For the six months ended March
31, 1995, SG & A expenses were $65.5 million; this was $20.5 million more than
the amount for the six months ended March 31, 1994.  Most of the increase is
attributable to the CRSS acquisition.  Also contributing to the increase was
slightly higher levels of S,G & A spending by the other operations of the
Company in support of an increased level of business activity in the current
fiscal year as compared to the corresponding periods last year.

The Company's operating profit (defined as income before taxes, other income,
net and interest income, net) was $24.1 for the six months ended March 31, 1995;
this was $0.4 million more than the amount of operating profit for the
corresponding period last year.  Operating profits have not increased in line
with revenues because the increase in revenues was due primarily to the CRSS
acquisition, without a corresponding increase in operating profits at rates
comparable to the rates currently being experienced by the balance of the
Company.  In addition, engineering services revenues continue to include the
workoff of contracts awarded last year that include very competitively-bid fee
arrangements.

Interest expense, net was $31,900 for the six months ended March 31, 1995, as
compared to net interest income of $215,900 for the corresponding period last
year.  The shift from having net interest income last year to net interest
expense this year was due primarily to the long-term debt incurred last year in
connection with the CRSS acquisition.  Also contributing to the change was
increased bank borrowings by the Company's foreign subsidiaries to fund
increased working capital requirements.

Other income, net totalled $0.5 million for the second quarter of fiscal 1995,
as compared to other income, net of $0.2 million for the second quarter of
fiscal 1994.  This increase was due primarily to higher gains from sales of
investments during the second quarter of fiscal 1995 as compared to the
corresponding period last year.


Backlog Information
- -------------------

The following table summarizes the Company's backlog at the dates indicated (in
millions):
<TABLE>
<CAPTION>
                                    March 31, 1995   March 31, 1994
                                    --------------   --------------
<S>                                 <C>              <C>
  Engineering services backlog            $  824.8         $  702.7
  Total backlog                            2,561.0          1,961.0
 
</TABLE>
Liquidity and Capital Resources
- -------------------------------

The Company's cash and cash equivalents decreased $23.9 million during the six
months ended March 31, 1995.  This compares to a net increase of $0.6 million
during the corresponding period last year.  The current year decrease in cash
and cash equivalents was comprised of cash used in operations ($6.5 million),
investing activities ($10.1 million) and financing activities ($7.4 million),
offset in part by the effects of exchange rate changes ($0.1 million).

                                     Page 9
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                                 MARCH 31, 1995

Operations used $6.5 million of cash and cash equivalents during the six months
ended March 31, 1995.  This compares to a net use of cash of $1.1 million during
the six months ended March 31, 1994.  The $5.3 million increase in cash used by
operations was due primarily to the timing of cash receipts and payments on
receivables and accrued liabilities and payables, respectively.

The Company's investing activities used $10.1 million of cash and cash
equivalents during the six months ended March 31, 1995.  This compares to a net
use of cash of $5.7 million for the six months ended March 31, 1994.  Although
net additions to property and equipment were $10.3 million lower in the current
six-month period as compared to last year, sales and purchases of marketable
securities and investments generated a net of $15.4 million more cash last year
than in the current six-month period.

Cash flows from financing activities used $7.4 million in cash and cash
equivalents during the six months ended March 31, 1995.  This compares to net
contributions of $7.5 million during the six months ended March 31, 1994.  The
variance was due primarily to the Company's bank borrowings.  During the six
months ended March 31, 1995, the Company was paying-down on its bank borrowings.
During the corresponding period last year, the Company was increasing its
borrowings from banks.

The Company believes it has adequate capital resources to fund its operations
for the remainder of 1995 and beyond.  At March 31, 1995, the Company's short-
and long-term committed credit facilities totaled $88.8 million through banks in
the U.S. and the U.K., against which $24.3 million was outstanding at that date.

                                     Page 10
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                                 MARCH 31, 1995

PART II - OTHER INFORMATION
ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

The Company's annual meeting of stockholders was held on February 14, 1995 at
3:30 p.m. as announced in its Notice of Annual Meeting of Shareholders and Proxy
Statement dated January 5, 1995, copies of which have been filed with the
Commission pursuant to Regulation 14A.

There were two matters voted upon by the stockholders at the annual meeting.
Those matters were:

     1.   To elect a slate of directors nominated in the proxy statement (Mr.
          Joseph F. Alibrandi, Hon. Peter H. Dailey, Mr. Robert B. Gwyn and Dr.
          Linda K. Jacobs); and

     2.   To approve the appointment of Ernst & Young LLP as independent
          auditors for the year ending September 30, 1995.

The results of the shareholder voting were as follows (all shares voted were
voted by proxy):

With respect to the first matter, the following table presents the results of
the shareholder voting for each of the individual nominees:
<TABLE>
<CAPTION>
                                               Nominee
                          -------------------------------------------------
                          Joseph F.     Peter H.    Robert B.     Linda K.
                          Alibrandi      Dailey        Gwyn        Jacobs
                          ----------   ----------   ----------   ----------
<S>                       <C>          <C>          <C>          <C>
  Shares voting for
   the nominee            21,127,760   21,128,507   21,126,343   21,114,310
  Shares instructing
   the proxy not to
   vote for the
   nominee                   103,636      102,889      105,053      117,086
  Shares not voted         3,884,511    3,884,511    3,884,511    3,884,511
                          ----------   ----------   ----------   ----------
  Total                   25,115,907   25,115,907   25,115,907   25,115,907
                          ==========   ==========   ==========   ==========
</TABLE>

With respect to the second matter, there were 21,140,647 shares which voted in
favor of the appointment of Ernst & Young LLP as the Company's independent
auditors for the year ending September 30, 1995.  There were 57,043 shares which
voted against the appointment, 33,706 shares instructed the proxy not to vote,
and there were 3,884,511 shares which were not present and for which no proxies
were received.

                                     Page 11
<PAGE>
 
                 JACOBS ENGINEERING GROUP INC. AND SUBSIDIARIES
                                 MARCH 31, 1995

ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K.
     (a)  Exhibits:

         10.5   Jacobs Engineering Group Inc. and Subsidiaries 1991 Executive
                Deferral Plan, effective June 1, 1991.

         10.6   Jacobs Engineering Group Inc. and Subsidiaries 1993 Executive
                Deferral Plan, effective December 1, 1993.

         10.11  Jacobs Engineering Group Inc. 401(k) Plus Savings Plan and Trust
                Agreement - Second Complete Amendment and Restatement -
                Generally Effective January 1, 1990.

         27.    Financial Data Schedule.

     (b)  Reports on Form 8-K:
          Not applicable.


                                   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.


JACOBS ENGINEERING GROUP INC.



/s/  John W. Prosser, Jr.
- --------------------------------
John W. Prosser, Jr.
Senior Vice President, Finance
and Administration and Treasurer


Date:  May 11, 1995

                                     Page 12

<PAGE>
 
                                                                    EXHIBIT 10.5

 
                         JACOBS ENGINEERING GROUP INC.

                      1991 EXECUTIVE DEFERRAL PLAN 
                                     (EDP)


                            Effective June 1, 1991
<PAGE>
 
                               TABLE OF CONTENTS

                                                                            Page
                                                                            ----

Purpose      ...............................................................  1

Article 1 -  Definitions ...................................................  1

Article 2 -  Eligibility ...................................................  4
    2.1      Eligibility and Participation .................................  4
    2.2      Enrollment Requirements .......................................  4

Article 3 -  Deferral Commitments ..........................................  4
    3.1      Minimum Deferral ..............................................  4
    3.2      Maximum Deferral ..............................................  4
    3.3      Fixed Deferral Amount .........................................  4
    3.4      Deferral Commitment Period ....................................  5
    3.5      Withholding of Deferral Amounts ...............................  5
    3.6      FICA Taxes ....................................................  5
    3.7      Interest Crediting Prior to Distribution ......................  5
    3.8      Hardship ......................................................  6

Article 4 -  Pre-Retirement Distribution ...................................  6
    4.1      Eligibility for Pre-Retirement Distribution ...................  6
    4.2      Amount of Distribution ........................................  6

Article 5 -  Retirement Benefit ............................................  7
    5.1      Eligibility for Retirement Benefit ............................  7
    5.2      Retirement Benefit - Payment ..................................  7
    5.3      Retirement Benefit - Amount ...................................  7
    5.4      Death Prior to Completion of Retirement Benefit ...............  8

Article 6 -  Survivor Benefit ..............................................  8
    6.1      Eligibility for Survivor's Benefit ............................  8
    6.2      Survivor's Benefit - Method of Payment ........................  8
    6.3      Survivor's Benefit - Amount ...................................  8
    6.4      Suicide .......................................................  8

Article 7 -  Termination Benefit ...........................................  9
    7.1      Eligibility for Termination Benefit ...........................  9
    7.2      Termination Benefit ...........................................  9

                                      -i-
<PAGE>
 
                                                                            Page
                                                                            ----
Article 8 -  Disability ....................................................  9
    8.1      Eligibility for Disability Waiver .............................  9
    8.2      Benefits ...................................................... 10
    8.3      Long-Term Disability - Termination ............................ 10

Article 9 -  Beneficiary ................................................... 10
    9.1      Beneficiary ................................................... 10
    9.2      Beneficiary Designation; Change ............................... 10
    9.3      Acknowledgment ................................................ 10
    9.4      No Beneficiary Designation .................................... 10
    9.5      Doubt as to Beneficiary ....................................... 10
    9.6      Discharge of Obligations ...................................... 10

Article 10 - Leave of Absence .............................................. 11
    10.1     Authorized Leave of Absence ................................... 11

Article 11 - Employer/Participant Liability ................................ 11
    11.1     General Assets ................................................ 11
    11.2     Employer's Liability .......................................... 11
    11.3     Limitation of Obligation ...................................... 11
    11.4     Participant Cooperation ....................................... 11
    11.5     Unsecured General Creditor .................................... 11

Article 12 - No Guarantee of Employment .................................... 12
    12.1     No Guarantee of Employment .................................... 12

Article 13 - Termination, Amendment or Modification of the Plan ............ 12
    13.1     Termination ................................................... 12
    13.2     Amendment ..................................................... 12
    13.3     Termination of Plan Agreement ................................. 12
    13.4     Change in Control ............................................. 12
    13.5     Termination, Modification or Amendment Following 
              Change in Control ............................................ 14
    13.6     Legal Fees To Enforce Rights After Change in Control .......... 14
    13.7     Vesting ....................................................... 15

Article 14 - Other Benefits and Agreements ................................. 15
    14.1     Coordination with Other Benefits .............................. 15

Article 15 - Restrictions on Alienation of Benefits ........................ 15
    15.1     Nonassignability .............................................. 15

                                     -ii-
<PAGE>
 
                                                                            Page
                                                                            ----
Article 16 - Administration of the Plan .................................... 15
    16.1     Committee Administration ...................................... 15
    16.2     Committee Authority ........................................... 15
    16.3     Committee Indemnity ........................................... 15
    16.4     Employer's Obligations to the Committee ....................... 16
    16.5     Committee Discretion in Payment Schedule ...................... 16
 
Article 17 - Claims Procedures ............................................. 16
    17.1     Presentation of Claim ......................................... 16
    17.2     Notification of Decision ...................................... 16
    17.3     Review of a Denied Claim ...................................... 17
    17.4     Decision on Review ............................................ 17
 
Article 18 - Trust ......................................................... 17
    18.1     Establishment of the Trust .................................... 17
    18.2     Interrelationship of the Plan and the Trust ................... 17
 
Article 19 - Miscellaneous ................................................. 18
    19.1     Notice ........................................................ 18
    19.2     Successors .................................................... 18
    19.3     Spouse's Interest ............................................. 18
    19.4     Governing Law ................................................. 18
    19.5     Pronouns ...................................................... 18
    19.6     Headings ...................................................... 18
    19.7     Validity ...................................................... 18
                                     -iii-
<PAGE>
 
                            EXECUTIVE DEFERRAL PLAN

                                      OF

                         JACOBS ENGINEERING GROUP INC.


                                    Purpose

The purpose of this plan is to provide specified benefits to a select group of
key employees who contribute materially to the continued growth, development and
future business success of JACOBS ENGINEERING GROUP INC. and its subsidiaries.

                                   Article 1 
                                  Definitions

For purposes hereof, unless otherwise clearly apparent from the context, the
following phrases or terms shall have the following indicated meanings:

1.1  "Account Balance" shall mean the sum of (i) the Deferral Amount and (ii)
     interest credited in accordance with all the applicable interest crediting
     provisions of this Plan, less all distributions made in accordance with the
     Plan.

1.2  "Annual Bonus" shall mean any compensation paid under the Employer's
     Incentive Bonus Plan.

1.3  "Base Annual Salary" shall mean the annual compensation that is to be paid
     to a Participant for each Plan Year, determined as of the first day of that
     year, excluding bonuses, commissions, overtime and non-monetary awards for
     employment services to the Employer.

1.4  "Beneficiary" shall mean the person or persons, or the estate of a
     Participant, designated in accordance with Article 9, who is entitled to
     receive benefits under this Plan upon the death of a Participant.

1.5  "Beneficiary Designation Form" shall mean the form established from time to
     time by the Board that a Participant completes, signs and returns to the
     Committee to designate one or more Beneficiaries.

1.6  "Board" shall mean the Board of Directors of the Company.

1.7  "Change in Control" shall have the meaning set forth in Section 13.4.

1.8  "Claimant" shall have the meaning set forth in Section 17.1.

                                      -1-
<PAGE>
 
1.9  "Committee" shall mean the administrative committee appointed to manage and
     administer the Plan in accordance with the provisions of Article 16.

1.10 "Company" shall mean JACOBS ENGINEERING GROUP INC.

1.11 "Continuing Director" shall mean a director described in Section 13.4(b).

1.12 "Deferral Amount" shall be the sum of all of a Participant's Base Annual
     Salary deferrals, Annual Bonus deferrals and, if applicable, Directors Fees
     deferrals.

1.13 "Deferral Commitment Period" shall mean the period described in Section 3.4
     of this Plan.

1.14 "Director" shall mean any member of the Board.

1.15 "Directors Fees" shall mean the annual fees paid by the Company, including
     retainer fees and meetings fees, as compensation for serving on the Board.

1.16 "Disability" shall mean a period of disability during which a Participant
     qualifies for benefits under the Company's or any of its subsidiaries' 
     long-term disability program.

1.17 "Election Form" shall mean the form established from time to time by the
     Board that a Participant completes, signs and returns to the Committee to
     make an election under the Plan.

1.18 "Employee" shall mean any person who is in the regular full-time employment
     of an Employer as determined by the personnel policies and practices of the
     Employer.

1.19 "Employer" shall mean the Company and any subsidiaries of the Company that
     have been selected by the Board to participate in the Plan.

1.20 "Moody's Rate" shall mean the interest rate determined and announced by the
     Committee at any time before the commencement of each Plan Year. The
     Moody's Rate for a Plan Year shall be the most current monthly "Seasoned
     Corporate Bond" rate published by Moody's Investors Service, Inc., or any
     successor to that service, available prior to the announcement by the
     Committee. For the first Plan Year, the Moody's Rate shall be 9.43%. The
     Seasoned Corporate Bond rate is an economic indicator, based on an
     arithmetic average of the yields of representative bonds, including
     industrials, public utilities, Aaa, A, and Baa bonds, and is calculated as
     a monthly average of the composite yield.

1.21 "Participant" shall mean any Employee or Director who (i) is selected to
     participate in the Plan, (ii) elects to participate in the Plan, (iii)
     signs a Plan Agreement, an Election Form and a Beneficiary Designation
     Form, (iv) the signed Plan Agreement, Election Form and Beneficiary
     Designation Form are returned to and accepted by the Committee and (v)
     neither the Plan nor the Plan Agreement has terminated.

                                      -2-
<PAGE>
 
1.22 "Participation Year" shall mean with respect to any Participant, any Plan
     Year in which a Participant is at any time during such year a Participant.
     Notwithstanding the previous sentence, "Participation Year" shall not
     include any years prior to the first Plan Year in which a Participant
     actually has any amount deferred under this Plan.

1.23 "Plan" shall mean the 1991 Executive Deferral Plan of the Employer which is
     defined by this instrument and by each Plan Agreement.

1.24 "Plan Agreement" shall mean the form of written agreement which is entered
     into by and between the Employer and a Participant. Each Plan Agreement
     executed by a Participant shall provide for the entire benefit to which
     such Participant is entitled to under the Plan, and the Plan Agreement
     bearing the latest date shall govern such entitlement.

1.25 The "Plan Year" shall, for the first Plan Year, begin on June 1, 1991, and
     end on December 31, 1991. For each Plan Year thereafter, the Plan Year
     shall begin on January 1 of each year and continue through December 31 of
     the same year.

1.26 "Pre-Retirement Distribution" shall mean the distribution provided for in
     Article 4.

1.27 "Retirement Benefit" shall mean the retirement benefit provided for in
     Article 5.

1.28 "Retirement Date" shall be the earlier of the first day of the month in
     which the Participant (i) attains the age of sixty-five (65), (ii) is sixty
     (60) years of age or older and has completed ten (10) Years of Service, or
     (iii) is terminated as a result of a long-term disability under the
     Employer's policies and practices.

1.29 "Retirement Distribution Date" shall mean the last day of the month in
     which a Participant has both (i) reached or passed his or her Retirement
     Date and (ii) has actually ceased being an Employee or Director other than
     by death.

1.30 "Survivor's Benefit" shall mean the benefit provided for in Article 6.

1.31 "Termination Benefit" shall mean the termination benefit provided for in
     Section 7.2.

1.32 "Termination of Employment" shall mean with respect to an Employee or
     Director the cessation of employment or a Director's position, as the case
     may be, voluntarily or involuntarily, and, except as provided in Article 8
     and Article 10, shall exclude cessation as a result of an authorized leave
     of absence, retirement, Disability or death. If a Participant is both an
     Employee and a Director, Termination of Employment shall occur only upon
     the termination of last held position.

1.33 "Trust" shall mean the trust established pursuant to that certain Trust
     Agreement, dated as of June 1, 1991, between the Company and the Trustee
     named therein, as amended from time to time.

1.34 "Unforeseeable Financial Emergency" shall have the meaning set forth in
     Section 3.8(b).

                                      -3-
<PAGE>
 
1.35 "Years of Service" shall mean the total number of years, that a Participant
     is an Employee or a Director, including, without limitation, periods of
     Disability and leaves of absence prior to Termination of Employment, as
     provided under Article 8 and Article 10.

                                   Article 2 
                                  Eligibility

2.1  Eligibility and Participation. The Committee, in its sole discretion, shall
     -----------------------------
     establish eligibility qualifications for participation in the Plan.
     Participation shall be limited to a select group of management and highly
     compensated employees of the Employer.

2.2  Enrollment Requirements. As a condition of participation, each Participant
     -----------------------
     so selected shall complete, sign and return to the Committee a Plan
     Agreement, an Election Form and a Beneficiary Designation Form, and shall
     comply with all further conditions that may be established by the
     Committee.

                                  Article 3 
                             Deferral Commitments
3.1  Minimum Deferral.  A Participant must defer during each Plan Year of the
     ----------------
     Deferral Commitment Period at least one of the following minimum amounts:

    (a)  In the case of an Employee, $2,000 of his or her Base Annual Salary; or

    (b)  In the case of a Director who is not an Employee, a percentage that is
         anticipated to equal $2,000 of his or her Directors Fees.

    A Participant shall not be permitted to defer any portion of his or her
    Annual Bonus unless he or she meets one of the minimum Deferral requirements
    set forth in this Section. If a Participant first becomes a Participant
    after the first day of a Plan Year, or in the case of the first Plan Year of
    the Plan itself, at the election of the Employee on the Election Form, the
    minimum deferral described in (a) shall be an amount equal to $2,000,
    multiplied by a fraction, the numerator of which is the number of complete
    months remaining in the Plan Year and the denominator of which is 12.

3.2  Maximum Deferral. For each Plan Year of the Deferral Commitment Period, a
     ----------------
     Participant may defer up to fifty percent (50%) of his or her Base Annual
     Salary, fifty percent (50%) of his or her Annual Bonus (except as noted in
     Section 3.5) and, if applicable, up to one hundred percent (100%) of his or
     her Directors Fees.

3.3  Fixed Deferral Amount. Except as provided in Section 3.5, the annual
     ---------------------
     deferral selected by a Participant shall be the same for each Plan Year of
     the Deferral Commitment Period. A Base Annual Salary deferral shall be a
     fixed dollar amount, and an Annual Bonus or Directors Fees deferral shall
     be a fixed percentage of the applicable annual bonus or fee.

                                      -4-
<PAGE>
 
     In no event shall an annual deferral amount be decreased during the
     Deferral Commitment Period. An annual deferral amount may only be increased
     (i) prior to the commencement of the Plan Year to which such annual
     deferral amount relates and (ii) with the approval of the Committee.

3.4  Deferral Commitment Period. The "Deferral Commitment Period" for each
     --------------------------
     Participant shall be a fixed period of four (4) consecutive Plan Years
     commencing with the 1991 Plan Year unless otherwise designated by the
     Committee.

3.5  Withholding of Deferral Amounts. The portion of the Base Annual Salary
     -------------------------------
     elected to be deferred annually shall be withheld in equal amounts over the
     Plan Year. The portion of Annual Bonus and Directors Fees being deferred
     shall be withheld at the time the Annual Bonus or Directors Fees would
     otherwise be paid to the Participant. Notwithstanding the above, for such
     first Plan Year, Participants can elect to:

     (a)  Defer the total Base Annual Salary deferral in that first Plan Year,

     (b)  Defer an amount equal to the amount in Article 3.5(a) above multiplied
          by a fraction, the numerator of which is the number of complete months
          remaining in the first Plan Year, and the denominator of which is
          twelve (12).

     (c)  Defer from Base Annual Salary an amount equal to Article 3.5(b),
          above. In addition, the difference between Articles 3.5(a) and 3.5(b)
          would be deferred from the Annual Bonus for the first Plan Year (in
          addition to any Annual Bonus election). For the first Plan Year only,
          the total Annual Bonus deferral could exceed fifty percent (50%) by
          nature of this provision.

3.6  FICA Taxes. For each Plan Year of the Deferral Commitment Period, the
     ----------
     Employer shall ratably withhold from that portion of the Participant's Base
     Annual Salary and/or Annual Bonus that is not being deferred, the
     Participant's share of FICA taxes based on an amount equal to the Base
     Annual Salary and/or Annual Bonus before reduction by the amount deferred.
     If necessary, the Committee shall reduce the amount deferred in order to
     comply with this Section 3.6.

3.7  Interest Crediting Prior to Distribution.
     ----------------------------------------
     (a)  Except as provided in Section 3.7(b) and Section 3.7(c) below,
          interest shall be credited annually on a Participant's Account Balance
          at 125% of the Moody's Rate. For purposes of this crediting, all
          amounts deferred during a Plan Year shall be treated as having been
          deferred as of the beginning of the Plan Year. Such interest crediting
          shall be made up to the date of the Pre-Retirement Distribution, the
          Retirement Date, the date of the Participant's death or the date of
          Termination of Employment, depending on whether the benefit is paid
          under Article 4, 5, 6 or 7, respectively.

                                      -5-
<PAGE>
 
     (b)  In the event of a Termination of Employment, interest shall be
          credited in the manner provided in Section 3.7(a), but at the rate
          provided for in Section 7.2.


     (c)  In the event of a Participant's suicide, interest shall be credited in
          accordance with Section 6.4.

3.8  Hardship.
     --------
     (a)  If a Participant experiences an Unforeseeable Financial Emergency as
          described in Section 3.8(b) below, the Participant may petition the
          Committee to (i) suspend any deferrals required by the Plan Agreement
          and/or (ii) receive a distribution from the Plan. Any approval of such
          a petition shall be made at the sole discretion of the Committee. If
          the Committee approves a distribution, the distribution shall be made
          within sixty (60) days of the date of approval. The distribution may
          not exceed the Participant's Account Balance as of the last day of the
          month prior to the date of the Committee's approval of the petition,
          calculated as if such Participant were receiving a Termination Benefit
          as of such date.

     (b)  An "Unforeseeable Financial Emergency" shall mean an unexpected need
          for cash arising from an illness, casualty loss, sudden financial
          reversal, transfer of place of employment or other such unforeseeable
          occurrence, all as determined in the sole discretion of the Committee.

                                   Article 4
                          Pre-Retirement Distribution

4.1  Eligibility for Pre-Retirement Distribution. A Participant may elect to
     -------------------------------------------
     receive a Pre-Retirement Distribution from the Plan to be received in or
     after the eighth Participation Year. This election shall be irrevocable and
     shall be made on the Election Form, which form is to be delivered to the
     Committee prior to the commencement of the Deferral Commitment Period.

4.2  Amount of Distribution. The amount of the Pre-Retirement Distribution shall
     ----------------------
     be any amount not to exceed the electing Participant's Account Balance at
     the end of the Participation Year prior to the Participation Year selected
     on the Election Form for the distribution. The Pre-Retirement Distribution
     may not be made prior to the eighth (8th) Participation Year. At the
     election of the Participant (on the Election Form), this amount shall be
     distributed or, in the case of installment payments, shall start
     distribution within ninety (90) days of the January 1st of the
     Participation Year selected on the Election Form in one of the following
     manners:

     (a)  In a lump sum equal to the Total Account Balance at the end of the
          Participation Year prior to the Participation Year selected on the
          Election Form for the distribution; or

                                      -6-
<PAGE>
 
     (b)  In a lump sum equal to a fixed dollar amount. Such fixed dollar amount
          shall be chosen by the Participant on the Election Form. Any remaining
          amounts in the Account Balance, after completion of the Pre-Retirement
          Distribution, shall remain in the Plan to be paid under the other
          provisions of the Plan; or

     (c)  In four or fewer annual consecutive installments of a fixed dollar
          amount. Such fixed dollar amount shall be chosen by the Participant on
          the Election Form. Interest on the unpaid Account Balance shall be
          credited at 125% of Moody's. Any remaining amounts in the Account
          Balance, after completion of the Pre-Retirement Distribution, shall
          remain in the Plan to be paid under the other provisions of the Plan;
          or

     (d)  In four or fewer annual consecutive installments so that the total
          Account Balance is completely distributed over the elected installment
          period. Interest on the unpaid Account Balance shall be credited at
          125% of Moody's.

     If the amount of Pre-Retirement Distribution elected by the Participant
     exceeds the total Account Balance at any time during the Pre-Retirement
     Distribution period, only the amount remaining in the Account Balance shall
     be distributed to the Participant and the Employer shall have no further
     liability under the Plan.

                                   Article 5
                              Retirement Benefit

5.1  Eligibility for Retirement Benefit. If the Participant ceases to be an
     ----------------------------------
     Employee or a Director for any reason other than death, including without
     limitation, retirement or a Termination of Employment after the Retirement
     Date, the Employer shall pay the Retirement Benefit to the Participant (or
     his or her Beneficiary) as provided in Section 5.2 and Section 5.3 below.

5.2  Retirement Benefit - Method of Payment. The Retirement Benefit may be paid
     --------------------------------------
     in a lump sum, or in installments over a period of 60, 120, or 180 months
     at the sole discretion of the Committee. The lump sum payment shall be
     made, or installment payments shall commence, within sixty (60) days of the
     Retirement Distribution Date and in the case of installment payments, shall
     continue until the Retirement Benefit is paid in full.

5.3  Retirement Benefit - Amount. If the Retirement Benefit is paid in a lump
     ---------------------------
     sum, it shall be the retired Participant's Account Balance determined as of
     the Retirement Distribution Date. If the Retirement Benefit is paid in
     installments, it shall be a constant monthly payment, determined at the
     beginning of each Plan Year by monthly amortization of the remaining
     Account Balance over the remaining payment period. Interest on the unpaid
     balance will be credited for the remaining periods at 125% of the Moody's
     Rate established for each of the subsequent Plan Years. 

                                      -7-
<PAGE>
 
5.4  Death Prior to Completion of Retirement Benefit. If the Participant dies
     -----------------------------------------------
     after the Retirement Date and prior to the completion of the Retirement
     Benefit payments, the retired Participant's designated Beneficiary will
     receive any unpaid Retirement Benefit payments due the Participant, either
     at the times they were to be received by the Participant, or in a lump sum,
     as determined by the Committee in its sole discretion. If this Section 5.4
     applies, a designated Beneficiary shall not be entitled to any benefits
     provided for under Article 6.

                                   Article 6
                               Survivor Benefit

6.1  Eligibility for Survivor's Benefit. If a Participant dies before the
     ----------------------------------
     Retirement Date and before Termination of Employment, the Employer shall
     pay the Survivor's Benefit to the deceased Participant's Beneficiary,
     provided that all of the following conditions are met:

     (a)  the Participant's death was determined not to be from a bodily or
          mental cause or causes, the information about which was withheld,
          knowingly concealed, or falsely provided by the Participant, when
          requested by the Employer to furnish evidence of good health; and

     (b)  proof of the Participant's death is furnished to the Committee in such
          form as determined acceptable by the Committee.

6.2  Survivor's Benefit - Method of Payment. The Survivor's Benefit may be paid
     --------------------------------------
     in a lump sum, or in installments over a period of 60, 120, or 180 months
     at the sole discretion of the Committee. The lump sum payment shall be
     made, or installment payments shall commence within sixty (60) days of the
     date the Participant died and in the case of installment payments, shall
     continue until the Survivor's Benefit is paid in full.

6.3  Survivor's Benefit - Amount. If the Survivor's Benefit is paid in a lump
     ---------------------------
     sum, it shall be the retired Participant's Account Balance determined as of
     the date the Participant died. If the Survivor's Benefit is paid in
     installments, it shall be a constant monthly payment, determined at the
     beginning of each Plan Year by monthly amortization of the remaining
     Account Balance over the remaining payment period. Interest on the unpaid
     balance will be credited for the remaining periods at 125% of the Moody's
     Rate established for each of the subsequent Plan Years.

6.4  Suicide. In the event of a Participant's suicide within twenty-four months
     -------
     of the first deferral of any Deferral Commitment Period, the Employer shall
     be obligated to pay to the Participant's designated Beneficiary the
     Participant's portion of the Deferral Amount, without interest, and no
     other Survivor's Benefit shall be payable. 

                                      -8-
<PAGE>
 
                                   Article 7
                              Termination Benefit

7.1  Eligibility for Termination Benefit. If a Participant experiences a
     -----------------------------------
     Termination of Employment prior to the Retirement Date, the Employer shall
     pay to the Participant the Termination Benefit.

7.2  Termination Benefit. The Termination Benefit is a sum equal to the
     -------------------
     Participant's Account Balance determined as provided in this Section 7.2,
     as of the date of Termination of Employment, and shall be paid in a lump
     sum within ninety (90) days following the Termination of Employment. In
     determining the Account Balance for purposes of this Article 7 only,
     interest shall be calculated in the manner provided in Section 3.7(a)
     above, but using the applicable interest rate set forth in the following
     schedules:

               Number of                                  Interest
           Participation Years                         Crediting Rate
           -------------------                         --------------

For Employees:
- ------------- 

            Less than 2 years                                 0
        More than 2 but less than 7                      Moody's Rate
                 7 or more                           125% of Moody's Rate
 
For Directors:
- ------------- 

                 All years                           125% of Moody's Rate
 
 
     In the event a Participant is both an Employee and Director, interest 
     shall be credited under the Employee schedule.

                                   Article 8
                                  Disability

8.1  Eligibility for Disability Waiver. If a Participant suffers a Disability
     ---------------------------------
     during any Plan Year during the Deferral Commitment Period, the
     Participant's annual deferral amount for that Plan Year or any subsequent
     Plan Year shall, except as provided in this Section 8.1, be as set forth in
     his or her Election Form for the first six (6) months that a Participant
     suffers from a Disability, and the withholding of the Participant's monthly
     deferral amounts, calculated in accordance with Section 3.5, shall be met
     from the Participant's taxable portion of the disability benefit under the
     Employer's long-term disability program. Should the monthly deferral amount
     exceed one hundred percent (100%) of the taxable disability benefit, the
     Participant's deferral obligation shall be excused to the extent of that
     excess. If a Participant's Disability exceeds six (6) consecutive months,
     the Participant

                                      -9-
<PAGE>
 
     shall be excused from making any additional deferrals while he or she is 
     suffering from a Disability.

8.2  Benefits. A Participant suffering a Disability, but not terminated as a
     --------     
     result of long-term disability under the Employer's policies and practices,
     shall continue to be considered a Participant and shall be eligible for the
     benefits provided for in Articles 4, 5, 6 or 7 in accordance with the
     provisions of those Articles.

8.3  Long-Term Disability - Termination. For a Participant who is terminated as
     ----------------------------------
     a result of disability under the Employer's policies and practices, the
     provisions of Article 5 shall apply for purposes of Account Balance
     distribution and interest crediting.

                                   Article 9
                                  Beneficiary

9.1  Beneficiary. Each Participant shall have the right, at any time, to
     -----------
     designate any person or persons as his or her Beneficiary or Beneficiaries
     (both primary as well as contingent) to receive any benefits payable under
     the Plan to a Beneficiary upon the death of a Participant.

9.2  Beneficiary Designation; Change. A Participant shall designate his or her
     -------------------------------
     Beneficiary or Beneficiaries by completing and signing the Beneficiary
     Designation Form, and returning it to the Committee. A Participant shall
     have the right to change a Beneficiary by completing, signing and otherwise
     complying with the terms of the Beneficiary Designation Form.

9.3  Acknowledgment. No designation or change in designation of a Beneficiary
     --------------
     shall be effective until received, accepted and acknowledged in writing by
     the Committee.

9.4  No Beneficiary Designation. If a Participant fails to designate a
     --------------------------
     Beneficiary as provided above, or if all designated Beneficiaries
     predecease the Participant or die prior to complete distribution of the
     Participant's benefits, then the Participant's designated Beneficiary shall
     be deemed to be his or her surviving spouse. If the Participant has no
     surviving spouse, the benefits remaining under the Plan to be paid to a
     Beneficiary shall be payable to the executor or personal representative of
     the Participant's estate.

9.5  Doubt as to Beneficiary. If the Committee has any doubt as to the proper
     -----------------------
     Beneficiary to receive payments pursuant to this Plan, they shall have the
     right to withhold such payments until this matter is resolved to their
     satisfaction.

9.6  Discharge of Obligations. The payment of benefits under the Plan to a
     ------------------------
     Beneficiary shall fully and completely discharge the Employer from all
     further obligations under this Plan with respect to the deceased
     Participant and all of his or her Beneficiaries. 

                                     -10-
<PAGE>
 
                                  Article 10
                               Leave of Absence

10.1 Authorized Leave of Absence. If a Participant is authorized by the Employer
     ---------------------------
     for any reason to take a paid leave of absence from employment, such
     Participant shall continue to be considered employed as an Employee or
     Director and shall be required to maintain the level of deferrals set forth
     in his or her Plan Agreement in order to keep the Plan Agreement in full
     force and effect. If such leave of absence is unpaid, the Participant shall
     continue to be considered employed as an Employee or Director and will be
     excused from making deferrals until the unpaid leave of absence ends;
     provided, however, that if the unpaid leave of absence continues beyond
     three consecutive months, the Participant shall be treated as having
     incurred a Termination of Employment as of the end of such three month
     period and the Participant shall receive the Termination Benefit in
     accordance with Article 7. In the case of a conflict between this Article
     10 and Article 8, Article 8 shall prevail.

                                  Article 11
                        Employer/Participant Liability

11.1  General Assets.  Amounts payable to a Participant shall be paid from the
      --------------
      general assets of the Employer exclusively.

11.2  Employer's Liability.  The Employer's liability for the payment of
      --------------------
      benefits shall be defined only by this Plan, as entered into between the
      Employer and a Participant.

11.3  Limitation of Obligation.  The Employer shall have no obligation to a
      ------------------------
      Participant under the Plan, except as expressly provided for in the Plan.

11.4  Participant Cooperation. The Participant must cooperate with the Employer
      -----------------------
      and the Committee in furnishing all information requested by the Employer
      and/or Committee in order to facilitate the payment of benefits, and the
      administration and operations of this Plan. Such information may include
      taking a physical examination, or other actions, and such cooperation
      shall extend beyond the termination of the Plan Agreement and the
      Employee's Participation in the Plan.

11.5  Unsecured General Creditor. Participants, their Beneficiaries and their
      --------------------------
      permitted heirs, successors and assigns shall have no legal or equitable
      rights, interest or claims in any property or assets of the Employer. Any
      and all of the Employer's assets shall be, and remain, the general,
      unpledged unrestricted assets of the Employer. The Employer's obligations
      under the Plan shall be merely that of an unfunded and unsecured promise
      of the Employer to pay money in the future. 

                                     -11-
<PAGE>
 
                                  Article 12
                          No Guarantee of Employment

12.1  No Guarantee of Employment. Nothing in this Agreement shall be construed
      --------------------------
      as altering in any manner the employment relationship with an Employee or
      Director, which is hereby acknowledged to be an "at will" employment
      relationship that can be terminated at any time for any reason, with or
      without cause, unless otherwise expressly provided in a written employment
      agreement. All terms and conditions of an Employee's or Director's current
      employment shall remain the same. Nothing in this Plan creates, or is
      meant to create, any obligation on the part of the Employer to keep an
      Employee or Director employed by the Employer or not to terminate an
      Employee or Director at any time and for any reason.

                                  Article 13
              Termination, Amendment or Modification of the Plan

13.1  Termination. The Company reserves the right to terminate the Plan at any
      -----------
      time. Upon termination of the Plan, the Participant's Account Balance
      shall be paid out in accordance with the benefits that the Participant
      would receive if there had occurred a Termination of Employment with
      respect to the Participant on the date of Plan termination or, if such
      termination occurs after the Retirement Date, the Participant had retired
      on the date of Plan termination. Notwithstanding the above, the
      termination of the Plan shall not affect any Participant or Beneficiary
      who has become entitled to the payment of benefits under the Plan as of
      the date of termination.

13.2  Amendment. The Company may, at any time, amend or modify the Plan in whole
      ---------
      or in part, provided, however, that no amendment or modification shall be
      effective to decrease or restrict a Participant's Account Balance in
      existence at the time the amendment or modification is made, calculated as
      if there had occurred a Termination of Employment with respect to such
      Participant as of the effective date of the amendment or, if such
      amendment occurs after the Retirement Date, the Participant had retired as
      of the effective date of the amendment. The amendment or modification of
      the Plan shall not affect any Participant or Beneficiary who has become
      entitled to the payment of benefits under the Plan as of the date of the
      amendment or modification.

13.3  Termination of Plan Agreement. Absent the earlier termination,
      -----------------------------
      modification or amendment of the Plan, the Plan Agreement of any
      Participant shall terminate upon the full payment of the applicable
      benefit provided under Articles 4, 5, 6, or 7, as the case may be.

13.4  Change in Control.
      -----------------
      (a)  All benefits accrued under the Plan as of the date of a Change of
           Control shall thereafter be paid in accordance with the terms and
           conditions of this Plan. However, if at any time during a period of
           three years following a Change of Control 

                                     -12-
<PAGE>
 
          of the Company, the employment of a participant by the Employer is
          terminated (i) by the Employer for any reason other than for Cause, or
          (ii) by the Participant for just reason, then all benefits, including
          all interest at the full 125% of Moody's rate shall apply and not at
          the rates applicable in Section 7.2. Such amounts will thereupon be
          immediately due and payable in full, less any withholdings required by
          law, to such Participant, and within ten business days thereafter the
          Employer, or any successor corporation of the Employer shall deliver
          payment of such Account Balance to such Participant.

          A Participant shall be deemed to have terminated his or her employment
          for just reason if he or she resigns voluntarily after a demotion, a
          material reduction in his or her authority or responsibility or any
          reduction in his or her compensation or after being notified of a
          relocation of his or her work place that would materially increase the
          commuting distance from his or her then current principal residence.

         A Participant shall be deemed to have been terminated by the Employer
         for cause only if such participant has been terminated by reason of (i)
         a willful failure by such Participant to substantially perform his or
         her duties other than a failure resulting from the Participant's
         incapacity due to physical or mental illness, or (ii) a willful act by
         the Participant that constitutes gross misconduct and is materially
         injurious to the Employer. No act or failure to act by a Participant
         shall be considered "willful" unless committed without good faith and
         without a reasonable belief that the act of omission was in the best
         interests of the Employer.

      (b)  As used in this Plan, "Change of Control" means the occurrence of any
           of the following events:

           (i)   Any "person" (as such term is used in Sections 13(d) and 14(d)
                 of the Securities Exchange Act of 1934, hereinafter "Person")
                 becomes the beneficial owner, directly or indirectly, of
                 securities of the Company representing twenty-five percent 
                 (25%) or more of the combined voting power of the Company's 
                 then outstanding securities ordinarily (and apart from rights
                 accruing under special circumstances) having the right to vote
                 at elections of directors;

           (ii)  A change in the composition of the Board as a result of which
                 fewer than two-thirds (2/3rds) of the incumbent directors are
                 Continuing Directors; or

           (iii) A change of control that would be required to be reported in a
                 proxy statement pursuant to Item 5(f) of Schedule 14A of
                 Regulation 14A under the Securities Exchange Act of 1934.

           An individual shall be considered a "Continuing Director" on a
           particular date if he or she either (i) had been a member of the
           Board twenty-four (24) months prior to such date or (ii) was elected,
           or nominated for election, to the Board with the affirmative votes of
           at least a majority of the members of the Board twenty-four  

                                     -13-
<PAGE>
 
          (24) months prior to such date and who were still in office at
               the time of the election or nomination.

13.5  Termination, Modification or Amendment Following Change in Control.
      ------------------------------------------------------------------
      Following a Change in Control, neither the Company, any subsidiary of the
      Company nor any corporation, trust or other Person that succeeds to all or
      any substantial portion of the assets of the Company shall have the right
      to terminate, modify, or amend a Plan Agreement in effect prior to such
      Change in Control, and all benefits under such Plan Agreement shall
      thereafter be paid in accordance with the terms of such Plan Agreement as
      in effect immediately prior to such Change in Control. Any provision of
      this Plan to the contrary shall be construed in accordance with this
      Section 13.5.

13.6  Legal Fees To Enforce Rights After Change in Control. The Company is aware
      ----------------------------------------------------
      that upon the occurrence of a Change in Control, the Board (which might
      then be composed of new members) or a shareholder of the Company or of any
      successor corporation might then cause or attempt to cause the Company or
      such successor to refuse to comply with its obligations under the Plan and
      might cause or attempt to cause the Company to institute, or may
      institute, litigation seeking to deny Participants the benefits intended
      under the Plan. In these circumstances, the purpose of the Plan could be
      frustrated. It is the intent of the Company that Participants not be
      required to incur the expenses associated with the enforcement of their
      rights under the Plan by litigation or other legal action, because the
      cost and expense thereof would substantially detract from the benefits
      intended to be extended to Participants hereunder, and that Participants
      not be bound to negotiate any settlement of their rights under the Plan
      under threat of incurring such expenses. Accordingly, if, following a
      Change in Control, it should appear to any Participant that the Company
      has failed to comply with any of its obligations under the Plan or any
      agreement thereunder or, if the Company or any other Person takes any
      action to declare the Plan or any agreement hereunder void or
      unenforceable or institutes any litigation or other legal action designed
      to deny, diminish or to recover from any Participant the benefits intended
      to be provided to each Participant under the Plan, and such Participant
      has substantially complied with all of his or her obligations under the
      Plan and any such agreement, then the Company irrevocably authorizes such
      Participant from time to time to retain counsel of his or her choice at
      the expense of the Company to represent such Participant in connection
      with the initiation or defense of any litigation or other legal action,
      whether by or against the Company or any director, officer, shareholder or
      other person affiliated with the Company or any successor thereto in any
      jurisdiction. Notwithstanding any existing or prior attorney-client
      relationship between the Company and such counsel, the Company irrevocably
      consents to each Participant's entering into an attorney-client
      relationship with such counsel, and in that connection the Company and
      each Participant agree that a confidential relationship shall exist
      between each such Participant and his counsel. The Company shall pay or
      reimburse each Participant for all reasonable fees and expenses of counsel
      selected by such Participant from time to time on a regular, periodic
      basis from presentation of a statement or statements prepared by such
      counsel in accordance with its customary practices up to a maximum
      aggregate amount of $500,000.

                                     -14-
<PAGE>
 
13.7  Vesting. Notwithstanding anything that may be construed to the contrary in
      -------
      this Plan, a Participant shall at all times be 100% vested in his or her
      Deferral Amount.

                                  Article 14
                         Other Benefits and Agreements

14.1  Coordination with Other Benefits. The benefits provided for a Participant
      --------------------------------
      and Participant's Beneficiary under the Plan are in addition to any other
      benefits available to such Participant under any other plan or program for
      employees of the Employer. The Plan shall supplement and shall not
      supersede, modify or amend any other such plan or program except as may
      otherwise be expressly provided.

                                  Article 15
                    Restrictions on Alienation of Benefits

15.1  Nonassignability. Neither a Participant nor any other person shall have
      ----------------
      any right to commute, sell, assign, transfer, pledge, anticipate, mortgage
      or otherwise encumber, transfer, hypothecate or convey in advance of
      actual receipt, the amounts if any, payable hereunder, or any part
      thereof. No part of the amounts payable shall, prior to actual payment, be
      subject to any claims of creditors and, in particular, they shall not be
      subject to attachment, garnishment, seizure or sequestration by any
      creditor for the payment of any debts, judgments, obligations, alimony or
      separate maintenance owed by a Participant.

                                  Article 16
                          Administration of the Plan

16.1  Committee Administration. The general administration of this Plan, as well
      ------------------------
      as construction and interpretation thereof, shall be the responsibility of
      the Committee, the number of members of which shall be designated and
      appointed from time to time by, and shall serve at the pleasure of the
      Board.

16.2  Committee Authority. Subject to the Plan, the Committee shall from time to
      -------------------
      time establish rules, forms and procedures for the administration of the
      Plan. Except as otherwise expressly provided, the Committee shall have the
      exclusive right to interpret the Plan and to decide any and all matters
      arising thereunder. The Committee's decisions shall be conclusive and
      binding upon all persons having or claiming to have any right or interest
      under the Plan.

16.3  Committee Indemnity. No member of the Committee shall be liable for any
      -------------------
      act or omission of any other member of the Committee, nor for any act or
      omission on his own part, excepting his or her own willful misconduct. The
      Employer shall indemnify and save harmless each member of the Committee
      against any and all expenses and liabilities

                                     -15-
<PAGE>
 
      arising out of his or her membership on the Committee, with the exception
      of expenses and liabilities arising out of his or her own willful
      misconduct.

16.4  Employer's Obligations to the Committee. To enable the Committee to
      ---------------------------------------
      perform its functions, each Employer shall supply full and timely
      information to the Committee on all matters relating to the compensation
      of all Participants, their retirement, death, Disability or Termination of
      Employment, and such other pertinent facts as the Committee may require.

16.5  Committee Discretion in Payment Schedule. The Committee shall also have
      ----------------------------------------
      the power, at its sole discretion, to change the manner and timing of
      payments to be made to a Participant or Participant's Beneficiary from
      that set forth in the Participant's Plan Agreement, if requested to do so
      by such Participant or Beneficiary.

                                  Article 17
                               Claims Procedures

17.1  Presentation of Claim. Any Participant or Beneficiary of a deceased
      ---------------------
      Participant (such Participant or Beneficiary being referred to below as a
      "Claimant") may deliver to the Committee a written claim for a
      determination with respect to the amounts (i) credited to (or deducted
      from) such Claimant's Participant's Account Balance, or (ii) distributable
      to such Claimant from the Plan. If such a claim relates to the contents of
      a notice received by the Claimant, the claim must be made within 60 days
      after such notice was received by the Claimant. The claim must state with
      particularity the determination desired by the Claimant.

17.2  Notification of Decision.  The Committee shall consider a Claimant's claim
      ------------------------
      within a reasonable time, and shall notify the Claimant in writing:

       (a)  that the Claimant's requested determination has been made, and that
            the claim has been allowed in full; or

       (b)  that the Committee has reached a conclusion contrary, in whole or in
            part, to the Claimant's requested determination, and such notice
            must set forth in a manner calculated to be understood by the
            Claimant:

            (i)    the specific reason(s) for the denial of the claim, or any 
                   part of it;

            (ii)   specific reference(s) to pertinent provisions of the Plan 
                   upon which such denial was based;

            (iii)  a description of any additional material or information
                   necessary for the Claimant to perfect the claim, and an
                   explanation of why such material or information is necessary;
                   and

                                     -16-
<PAGE>
 
            (iv)  an explanation of the claim review procedure set forth in 
                  Section 17.3.

17.3  Review of a Denied Claim. Within sixty (60) days after receiving a notice
      ------------------------
      from the Committee that a claim has been denied, in whole or in part, a
      Claimant (or the Claimant's duly authorized representative) may file with
      the Committee a written request for a review of the denial of the claim.
      Thereafter, but not later than thirty (30) days after the review procedure
      began, the Claimant (or the Claimant's duly authorized representative):

      (a)  may review pertinent documents;

      (b)  may submit written comments or other documents; and/or

      (c)  may request a hearing, which the Committee, in its sole discretion, 
           may grant.

17.4  Decision on Review. The Committee shall render its decision on review
      ------------------
      promptly, and not later than sixty (60) days after the filing of a written
      request for review of the denial, unless a hearing is held or other
      special circumstances require additional time, in which case the
      Committee's decision must be rendered within 120 days after such date.
      Such decision must be written in a manner calculated to be understood by
      the Claimant, and it must contain:

      (a)  specific reasons for the decision;

      (b)  specific reference(s) to the pertinent Plan provisions upon which the
           decision was based; and

      (c)  such other matters as the Committee deems relevant.

                                  Article 18
                                     Trust

18.1  Establishment of the Trust. The Company shall establish the Trust. The
      --------------------------
      Employer shall at least annually transfer over to the Trust such assets as
      the Committee determines, in its sole discretion, are necessary to provide
      for the Employer's future liabilities created with respect to the Deferral
      Amounts and interest credits for that year.

18.2  Interrelationship of the Plan and the Trust. The provisions of the Plan
      -------------------------------------------
      and the Plan Agreement shall govern the rights of a Participant to receive
      distributions pursuant to the Plan. The provisions of the Trust shall
      govern the rights of the Employer, Participant and the creditors of the
      Employer to the assets transferred to the Trust. The Employer shall at all
      times remain liable to carry out its obligations under the Plan. The
      Employer's obligations under the Plan may be satisfied with Trust assets
      distributed pursuant to the terms of the Trust.

                                     -17-
<PAGE>
 
                                  Article 19
                                 Miscellaneous

19.1  Notice.  Any notice given under the Plan shall be in writing and shall be
      ------
      mailed to:
                         JACOBS ENGINEERING GROUP INC.
                               Employee Benefits
                             251 South Lake Avenue
                          Pasadena, California  91101

19.2  Successors. The Plan shall be binding upon the Employer and its respective
      ----------
      successors or assigns, and upon a Participant, the Participant's
      Beneficiaries and the Participant's permitted assigns, heirs, executors
      and administrators.

19.3  Spouse's Interest. The interest in the benefits hereunder of a spouse of a
      -----------------
      Participant who has predeceased the Participant shall automatically pass
      to the Participant and shall not be transferable by such spouse in any
      manner including but not limited to such spouse's will, nor shall such
      interest pass under the laws of intestate succession.

19.4  Governing Law. The Plan and Plan Agreement shall be governed by and
      -------------
      construed under the laws of the State of California, as in effect at the
      time of their adoptions and executions, respectively.

19.5  Pronouns.  Masculine pronouns wherever used shall include feminine
      --------
      pronouns and the singular shall include the plural.

19.6  Headings. The headings of the articles, sections and paragraphs of this
      --------
      Plan are for convenience only and shall not control or affect the meaning
      or construction of any of its provisions.

19.7  Validity. In the event any provision of this Plan shall be illegal or
      --------
      invalid for any reason, the illegality or invalidity of that provision
      shall not affect the remaining parts hereof, but this Plan shall be
      construed and enforced as if such illegal and invalid provision had never
      been inserted herein.

     IN WITNESS WHEREOF JACOBS ENGINEERING GROUP INC. has signed this Plan 
document this 31st day of May, 1991.
              
                         "Company"

                         JACOBS ENGINEERING GROUP INC.
 
                         By:    /s/ John W. Prosser Jr. 
                                ------------------------------------------------

                         Title: Senior Vice President Finance and Administration
                                ------------------------------------------------
                                            (Officer of the Company)

                                     -18-

<PAGE>
 
                                                                    EXHIBIT 10.6

                         JACOBS ENGINEERING GROUP INC.

                          1993 EXECUTIVE DEFERRAL PLAN
                                     (EDP)



                           Effective December 1, 1993
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                  Page
                                                                  ----
<S>                                                               <C>
Purpose.........................................................    1

Article 1 - Definitions.........................................    1

Article 2 - Eligibility.........................................    4
    2.1     Eligibility and Participation.......................    4
    2.2     Enrollment Requirements.............................    4
 
Article 3 - Deferral Commitments................................    4
    3.1     Minimum Deferral....................................    4
    3.2     Maximum Deferral....................................    5
    3.3     Fixed Deferral Amount...............................    5
    3.4     Deferral Commitment Period..........................    5
    3.5     Withholding of Deferral Amounts.....................    5
    3.6     FICA Taxes..........................................    5
    3.7     Interest Crediting Prior to Distribution............    5
    3.8     Hardship............................................    6
 
Article 4 - Pre-Retirement Distribution.........................    6
    4.1     Eligibility for Pre-Retirement Distribution.........    6
    4.2     Amount of Distribution..............................    6
  
Article 5 - Retirement Benefit..................................    7
    5.1     Eligibility for Retirement Benefit..................    7
    5.2     Retirement Benefit - Method of Payment..............    7
    5.3     Retirement Benefit - Amount.........................    8
    5.4     Death Prior to Completion of Retirement Benefit.....    8
 
Article 6 - Survivor Benefit....................................    8
    6.1     Eligibility for Survivor's Benefit..................    8
    6.2     Survivor's Benefit - Method of Payment..............    8
    6.3     Survivor's Benefit - Amount.........................    8
    6.4     Suicide.............................................    9
 
Article 7 - Termination Benefit.................................    9
    7.1     Eligibility for Termination Benefit.................    9
    7.2     Termination Benefit.................................    9
</TABLE> 

                                       i
<PAGE>
 
<TABLE>
<CAPTION>

                                                                  Page
                                                                  ----
<S>                                                               <C> 
Article 8 -  Disability..........................................    9
    8.1      Eligibility for Disability Waiver...................    9
    8.2      Benefits............................................   10
    8.3      Long-Term Disability - Termination..................   10
                                                                     
Article 9 -  Beneficiary.........................................   10
    9.1      Beneficiary.........................................   10
    9.2      Beneficiary Designation; Change; Spousal Consent....   10
    9.3      Acknowledgment......................................   10
    9.4      No Beneficiary Designation..........................   10
    9.5      Doubt as to Beneficiary.............................   10
    9.6      Discharge of Obligations............................   11
 
Article 10 - Leave of Absence....................................   11
    10.1     Authorized Leave of Absence.........................   11

Article 11 - Employer/Participant Liability......................   11
    11.1     General Assets......................................   11
    11.2     Employer's Liability................................   11
    11.3     Limitation of Obligation............................   11
    11.4     Participant Cooperation.............................   11
    11.5     Unsecured General Creditor..........................   11
 
Article 12 - No Guarantee of Employment..........................   12
    12.1     No Guarantee of Employment..........................   12

Article 13 - Termination, Amendment or Modification of the Plan..   12
    13.1     Termination.........................................   12
    13.2     Amendment...........................................   12
    13.3     Termination of Plan Agreement.......................   12
    13.4     Change in Control...................................   12
    13.5     Termination, Modification or Amendment Following 
               Change in Control.................................   14
    13.6     Legal Fees To Enforce Rights After Change in 
               Control...........................................   14
    13.7     Vesting.............................................   15
 
Article 14 - Other Benefits and Agreements.......................   15
    14.1     Coordination with Other Benefits....................   15

Article 15 - Restrictions on Alienation of Benefits..............   15
    15.1     Nonassignability....................................   15
</TABLE> 

                                      ii
<PAGE>
 
<TABLE>
<CAPTION>

                                                                  Page
                                                                  ----
<S>                                                               <C> 
Article 16 - Administration of the Plan..........................   15
    16.1     Committee Administration............................   15
    16.2     Committee Authority.................................   15
    16.3     Committee Indemnity.................................   15
    16.4     Employer's Obligations to the Committee.............   16
    16.5     Committee Discretion in Payment Schedule............   16
 
Article 17 - Claims Procedures...................................   16
    17.1     Presentation of Claim...............................   16
    17.2     Notification of Decision............................   16
    17.3     Review of a Denied Claim............................   17
    17.4     Decision on Review..................................   17
 
Article 18 - Trust...............................................   17
    18.1     Establishment of the Trust..........................   17
    18.2     Interrelationship of the Plan and the Trust.........   17
 
Article 19 - Miscellaneous.......................................   18
    19.1     Notice..............................................   18
    19.2     Successors..........................................   18
    19.3     Spouse's Interest...................................   18
    19.4     Governing Law.......................................   18
    19.5     Pronouns............................................   18
    19.6     Headings............................................   18
    19.7     Validity............................................   18
</TABLE>

                                      iii
<PAGE>
 
                         1993 EXECUTIVE DEFERRAL PLAN

                                      OF

                         JACOBS ENGINEERING GROUP INC.


                                    Purpose

The purpose of this plan is to provide specified benefits to a select group of
key employees who contribute materially to the continued growth, development and
future business success of JACOBS ENGINEERING GROUP INC. and its subsidiaries.

                                   Article 1
                                  Definitions

For purposes hereof, unless otherwise clearly apparent from the context, the
following phrases or terms shall have the following indicated meanings:

1.1  "Account Balance" shall mean the sum of (i) the Deferral Amount and (ii)
     interest credited in accordance with all the applicable interest crediting
     provisions of this Plan, less all distributions made in accordance with the
     Plan.

1.2  "Annual Bonus" shall mean any compensation paid under the Employer's
     Incentive Bonus Plan.

1.3  "Base Annual Salary" shall mean the annual compensation that is to be paid
     to a Participant for each Plan Year, determined as of the first day of that
     year, excluding bonuses, commissions, overtime and non-monetary awards for
     employment services to the Employer.

1.4  "Beneficiary" shall mean the person or persons, or the estate of a
     Participant, designated in accordance with Article 9, who is entitled to
     receive benefits under this Plan upon the death of a Participant.

1.5  "Beneficiary Designation Form" shall mean the form established from time to
     time by the Board that a Participant completes, signs and returns to the
     Committee to designate one or more Beneficiaries.

1.6  "Board" shall mean the Board of Directors of the Company.

1.7  "Change in Control" shall have the meaning set forth in Section 13.4.

1.8  "Claimant" shall have the meaning set forth in Section 17.1.

                                       1
<PAGE>
 
1.9  "Committee" shall mean the administrative committee appointed to manage and
     administer the Plan in accordance with the provisions of Article 16.

1.10 "Company" shall mean JACOBS ENGINEERING GROUP INC.

1.11 "Continuing Director" shall mean a director described in Section 13.4(b).

1.12 "Deferral Amount" shall be the sum of all of a Participant's Base Annual
     Salary deferrals, Annual Bonus deferrals and, if applicable, Directors Fees
     deferrals.

1.13 "Deferral Commitment Period" shall mean the period described in Section 3.4
     of this Plan.

1.14 "Director" shall mean any member of the Board.

1.15 "Directors Fees" shall mean the annual fees paid by the Company, including
     retainer fees and meetings fees, as compensation for serving on the Board.

1.16 "Disability" shall mean a period of disability during which a Participant
     qualifies for benefits under the Company's or any of its subsidiaries' 
     long-term disability program.

1.17 "Election Form" shall mean the form established from time to time by the
     Board that a Participant completes, signs and returns to the Committee to
     make an election under the Plan.

1.18 "Employee" shall mean any person who is in the regular full-time employment
     of an Employer as determined by the personnel policies and practices of the
     Employer.

1.19 "Employer" shall mean the Company and any subsidiaries of the Company that
     have been selected by the Board to participate in the Plan.

1.20 "Moody's Rate" shall mean the interest rate determined and announced by the
     Committee at any time before the commencement of each Plan Year. The
     Moody's Rate for a Plan Year shall be the most current monthly "Seasoned
     Corporate Bond" rate published by Moody's Investors Service, Inc., or any
     successor to that service, available prior to the announcement by the
     Committee. For the first Plan Year, the Moody's Rate shall be 6.98%. The
     Seasoned Corporate Bond rate is an economic indicator, based on an
     arithmetic average of the yields of representative bonds, including
     industrials, public utilities, Aaa, A, and Baa bonds, and is calculated as
     a monthly average of the composite yield.

1.21 "Participant" shall mean any Employee or Director who (i) is selected to
     participate in the Plan, (ii) elects to participate in the Plan, (iii)
     signs a Plan Agreement, an Election Form and a Beneficiary Designation
     Form, (iv) the signed Plan Agreement, Election Form and Beneficiary
     Designation Form are returned to and accepted by the Committee and (v)
     neither the Plan nor the Plan Agreement has terminated.

                                       2
<PAGE>
 
1.22 "Participation Year" shall mean with respect to any Participant, any Plan
     Year in which a Participant is at any time during such year a Participant.
     Notwithstanding the previous sentence, "Participation Year" shall not
     include any years prior to the first Plan Year in which a Participant
     actually has any amount deferred under this Plan.

1.23 "Plan" shall mean the 1993 Executive Deferral Plan of the Employer which is
     defined by this instrument and by each Plan Agreement.

1.24 "Plan Agreement" shall mean the form of written agreement which is entered
     into by and between the Employer and a Participant. Each Plan Agreement
     executed by a Participant shall provide for the entire benefit to which
     such Participant is entitled to under the Plan, and the Plan Agreement
     bearing the latest date shall govern such entitlement.

1.25 The "Plan Year" shall, for the first Plan Year (the 1994 Plan Year), begin
     on December 1, 1993, and end on December 31, 1994. For each Plan Year
     thereafter, the Plan Year shall begin on January 1 of each year and
     continue through December 31 of the same year.

1.26 "Pre-Retirement Distribution" shall mean the distribution provided for in
     Article 4.

1.27 "Prior EDP" shall mean the 1991 Executive Deferral Plan of the Employer.

1.28 "Retirement Benefit" shall mean the retirement benefit provided for in
     Article 5.

1.29 "Retirement Date" shall be the earlier of the first day of the month in
     which the Participant (i) attains the age of sixty-five (65), (ii) is sixty
     (60) years of age or older and has completed ten (10) Years of Service, or
     (iii) is terminated as a result of a long-term disability under the
     Employer's policies and practices.

1.30 "Retirement Distribution Date" shall mean the last day of the month in
     which a Participant has both (i) reached or passed his or her Retirement
     Date and (ii) has actually ceased being an Employee or Director other than
     by death.

1.31 "Survivor's Benefit" shall mean the benefit provided for in Article 6.

1.32 "Termination Benefit" shall mean the termination benefit provided for in
     Section 7.2.

1.33 "Termination of Employment" shall mean with respect to an Employee or
     Director the cessation of employment or a Director's position, as the case
     may be, voluntarily or involuntarily, and, except as provided in Article 8
     and Article 10, shall exclude cessation as a result of an authorized leave
     of absence, retirement, Disability or death. If a Participant is both an
     Employee and a Director, Termination of Employment shall occur only upon
     the termination of last held position.

                                       3
<PAGE>
 
1.34 "Trust" shall mean the trust established pursuant to that certain Trust
     Agreement, dated as of June 1, 1991, between the Company and the Trustee
     named therein, as amended from time to time.

1.35 "Unforeseeable Financial Emergency" shall have the meaning set forth in
     Section 3.8(b).

1.36 "Years of Service" shall mean the total number of years, that a Participant
     is an Employee or a Director, including, without limitation, periods of
     Disability and leaves of absence prior to Termination of Employment, as
     provided under Article 8 and Article 10.


                                   Article 2
                                  Eligibility

2.1  Eligibility and Participation.  The Committee, in its sole discretion, 
     -----------------------------
     shall establish eligibility qualifications for participation in the Plan.
     Participation shall be limited to a select group of management and highly
     compensated employees of the Employer.

2.2  Enrollment Requirements.  As a condition of participation, each Participant
     -----------------------
     so selected shall complete, sign and return to the Committee a Plan
     Agreement, an Election Form and a Beneficiary Designation Form, and shall
     comply with all further conditions that may be established by the
     Committee.


                                   Article 3
                             Deferral Commitments

3.1  Minimum Deferral.  A Participant must defer during each Plan Year of the
     ----------------                                                        
     Deferral Commitment Period at least one of the following minimum amounts:

     (a) In the case of an Employee, $2,000 of his or her Base Annual Salary; or

     (b) In the case of a Director who is not an Employee, a percentage that is
         anticipated to equal $2,000 of his or her Directors Fees.

     A Participant shall not be permitted to defer any portion of his or her
     Annual Bonus unless he or she meets one of the minimum Deferral
     requirements set forth in this Section. If a Participant first becomes a
     Participant after the first day of a Plan Year, or in the case of the first
     Plan Year of the Plan itself, at the election of the Employee on the
     Election Form, the minimum deferral described in (a) shall be an amount
     equal to $2,000, multiplied by a fraction, the numerator of which is the
     number of complete months remaining in the Plan Year and the denominator of
     which is 12.

                                       4
<PAGE>
 
3.2  Maximum Deferral.  For each Plan Year of the Deferral Commitment Period,
     ----------------                                                        
     subject to the provisions of Section 3.6, a Participant may defer:

               Deferral of. . .                   Maximum Percentage
 
         Base Annual Salary                              50%
         Directors Fees                                 100%
         Annual Bonus for Calendar Year 1993            100%
         Annual Bonus for Calendar Years 1994-1997       50%

     If the Participant is a Participant in the Prior EDP, the sum of his or her
     deferrals under the Prior EDP and under this Plan may not exceed the above
     maximums.

3.3  Fixed Deferral Amount.  Except as provided in Section 3.6, the annual
     ---------------------
     deferral selected by a Participant shall be the same for each Plan Year of
     the Deferral Commitment Period. A Base Annual Salary deferral shall be a
     fixed dollar amount, and an Annual Bonus or Directors Fees deferral shall
     be a fixed percentage of the applicable annual bonus or fee. In no event
     shall an annual deferral amount be decreased during the Deferral Commitment
     Period. An annual deferral amount may only be increased (i) prior to the
     commencement of the Plan Year to which such annual deferral amount relates
     and (ii) with the approval of the Committee.

3.4  Deferral Commitment Period.  The "Deferral Commitment Period" for each
     --------------------------                                            
     Participant shall be a fixed period of four (4) consecutive Plan Years
     commencing with the 1994 Plan Year unless otherwise designated by the
     Committee.

3.5  Withholding of Deferral Amounts.  The portion of the Base Annual Salary
     -------------------------------
     elected to be deferred annually shall be withheld in equal amounts over the
     Plan Year. The portion of Annual Bonus and Directors Fees being deferred
     shall be withheld at the time the Annual Bonus or Directors Fees would
     otherwise be paid to the Participant.

3.6  FICA Taxes.  For each Plan Year of the Deferral Commitment Period, the
     ----------                                                            
     Employer shall ratably withhold from that portion of the Participant's Base
     Annual Salary and/or Annual Bonus that is not being deferred, the
     Participant's share of FICA taxes based on an amount equal to the Base
     Annual Salary and/or Annual Bonus before reduction by the amount deferred.
     If necessary, the Committee shall reduce the amount deferred in order to
     comply with this Section 3.6.

3.7  Interest Crediting Prior to Distribution.
     ---------------------------------------- 

     (a) Except as provided in Section 3.7(b) and Section 3.7(c) below, interest
         shall be credited annually on a Participant's Account Balance at 125%
         of the Moody's Rate. For purposes of this crediting, all amounts
         deferred during a Plan Year shall be treated as having been deferred as
         of the beginning of the Plan Year, except for the 1994 Plan Year which
         shall be treated as though all amounts were deferred as of January 1,
         1994. Such interest crediting shall be made up to the date of the 

                                       5
<PAGE>
 
         Pre-Retirement Distribution, the Retirement Date, the date of the
         Participant's death or the date of Termination of Employment, depending
         on whether the benefit is paid under Article 4, 5, 6 or 7,
         respectively.

     (b) In the event of a Termination of Employment, interest shall be credited
         in the manner provided in Section 3.7(a), but at the rate provided for
         in Section 7.2.

     (c) In the event of a Participant's suicide within twenty-four months of
         the first deferral of any Deferral Commitment period, interest shall be
         credited in accordance with Section 6.4. After the first twenty-four
         months, interest will be credited in accordance with Sections 3.7(a)
         and 3.7(b) above.

3.8  Hardship.
     -------- 

     (a) If a Participant experiences an Unforeseeable Financial Emergency as
         described in Section 3.8(b) below, the Participant may petition the
         Committee to (i) suspend any deferrals required by the Plan Agreement
         and/or (ii) receive a distribution from the Plan. Any approval of such
         a petition shall be made at the sole discretion of the Committee. If
         the Committee approves a distribution, the distribution shall be made
         within sixty (60) days of the date of approval. The distribution may
         not exceed the Participant's Account Balance as of the last day of the
         month prior to the date of the Committee's approval of the petition,
         calculated as if such Participant were receiving a Termination Benefit
         as of such date.

     (b) An "Unforeseeable Financial Emergency" shall mean an unexpected need
         for cash arising from an illness, casualty loss, sudden financial
         reversal, transfer of place of employment or other such unforeseeable
         occurrence, all as determined in the sole discretion of the Committee.


                                   Article 4
                          Pre-Retirement Distribution

4.1  Eligibility for Pre-Retirement Distribution. A Participant may elect to
     -------------------------------------------
     receive a Pre-Retirement Distribution from the Plan to be received in or
     after the eighth Participation Year. This election shall be irrevocable and
     shall be made on the Election Form, which form is to be delivered to the
     Committee prior to the commencement of the Deferral Commitment Period.

4.2  Amount of Distribution. The amount of the Pre-Retirement Distribution shall
     ----------------------
     be any amount not to exceed the electing Participant's Account Balance at
     the end of the Participation Year prior to the Participation Year selected
     on the Election Form for the distribution. The Pre-Retirement Distribution
     may not be made prior to the eighth (8th) Participation Year. At the
     election of the Participant (on the Election Form), this amount shall be
     distributed or, in the case of installment payments, shall start
     distribution within 

                                       6
<PAGE>
 
     ninety (90) days of the January 1st of the Participation Year selected on
     the Election Form in one of the following manners:

     (a) In a lump sum equal to the Total Account Balance at the end of the
         Participation Year prior to the Participation Year selected on the
         Election Form for the distribution; or

     (b) In a lump sum equal to a fixed dollar amount. Such fixed dollar amount
         shall be chosen by the Participant on the Election Form. Any remaining
         amounts in the Account Balance, after completion of the Pre-Retirement
         Distribution, shall remain in the Plan to be paid under the other
         provisions of the Plan; or

     (c) In four or fewer annual consecutive installments of a fixed dollar
         amount. Such fixed dollar amount shall be chosen by the Participant on
         the Election Form. Interest on the unpaid Account Balance shall be
         credited at 125% of Moody's. Any remaining amounts in the Account
         Balance, after completion of the Pre-Retirement Distribution, shall
         remain in the Plan to be paid under the other provisions of the Plan;
         or

     (d) In four or fewer annual consecutive installments so that the total
         Account Balance is completely distributed over the elected installment
         period. Interest on the unpaid Account Balance shall be credited at
         125% of Moody's. 

     If the amount of Pre-Retirement Distribution elected
     by the Participant exceeds the total Account Balance at any time during
     the Pre-Retirement Distribution period, only the amount remaining in
     the Account Balance shall be distributed to the Participant and the
     Employer shall have no further liability under the Plan.


                                   Article 5
                              Retirement Benefit

5.1  Eligibility for Retirement Benefit. If the Participant ceases to be an
     ----------------------------------
     Employee or a Director for any reason other than death, including without
     limitation, retirement or a Termination of Employment after the Retirement
     Date, the Employer shall pay the Retirement Benefit to the Participant (or
     his or her Beneficiary) as provided in Section 5.2 and Section 5.3 below.

5.2  Retirement Benefit-Method of Payment. The Retirement Benefit may be paid in
     a lump sum, or in installments over a period of 60, 120, or 180 months at
     the sole discretion of the Committee. The lump sum payment shall be made,
     or installment payments shall commence, within sixty (60) days of the
     Retirement Distribution Date and in the case of installment payments, shall
     continue until the Retirement Benefit is paid in full.

                                       7
<PAGE>
 
5.3  Retirement Benefit-Amount. If the Retirement Benefit is paid in a lump sum,
     -------------------------
     it shall be the retired Participant's Account Balance determined as of the
     Retirement Distribution Date. If the Retirement Benefit is paid in
     installments, it shall be a constant monthly payment, determined at the
     beginning of each Plan Year by monthly amortization of the remaining
     Account Balance over the remaining payment period. Interest on the unpaid
     balance will be credited for the remaining periods at 125% of the Moody's
     Rate established for each of the subsequent Plan Years.

5.4  Death Prior to Completion of Retirement Benefit. If the Participant dies
     after the Retirement Date and prior to the completion of the Retirement
     Benefit payments, the retired Participant's designated Beneficiary will
     receive any unpaid Retirement Benefit payments due the Participant, either
     at the times they were to be received by the Participant, or in a lump sum,
     as determined by the Committee in its sole discretion. If this Section 5.4
     applies, a designated Beneficiary shall not be entitled to any benefits
     provided for under Article 6.


                                   Article 6
                               Survivor Benefit

6.1  Eligibility for Survivor's Benefit. If a Participant dies before the
     ----------------------------------
     Retirement Date and before Termination of Employment, the Employer shall
     pay the Survivor's Benefit to the deceased Participant's Beneficiary,
     provided that all of the following conditions are met:

     (a) the Participant's death was determined not to be from a bodily or
         mental cause or causes, the information about which was withheld,
         knowingly concealed, or falsely provided by the Participant, when
         requested by the Employer to furnish evidence of good health; and

     (b) proof of the Participant's death is furnished to the Committee in such
         form as determined acceptable by the Committee.

6.2  Survivor's Benefit-Method of Payment. The Survivor's Benefit may be paid in
     a lump sum, or in installments over a period of 60, 120, or 180 months at
     the sole discretion of the Committee. The lump sum payment shall be made,
     or installment payments shall commence within sixty (60) days of the date
     the Participant died and in the case of installment payments, shall
     continue until the Survivor's Benefit is paid in full.

6.3  Survivor's Benefit-Amount. If the Survivor's Benefit is paid in a lump sum,
     it shall be the retired Participant's Account Balance determined as of the
     date the Participant died. If the Survivor's Benefit is paid in
     installments, it shall be a constant monthly payment, determined at the
     beginning of each Plan Year by monthly amortization of the remaining
     Account Balance over the remaining payment period. Interest on the unpaid
     balance will be credited for the remaining periods at 125% of the Moody's
     Rate established for each of the subsequent Plan Years.

                                       8
<PAGE>
 
6.4  Suicide. In the event of a Participant's suicide within twenty-four months
     -------
     of the first deferral of any Deferral Commitment Period, the Employer shall
     be obligated to pay to the Participant's designated Beneficiary the
     Participant's portion of the Deferral Amount, without interest, and no
     other Survivor's Benefit shall be payable.


                                   Article 7
                              Termination Benefit

7.1  Eligibility for Termination Benefit. If a Participant experiences a
     -----------------------------------
     Termination of Employment prior to the Retirement Date, the Employer shall
     pay to the Participant the Termination Benefit.

7.2  Termination Benefit. The Termination Benefit is a sum equal to the
     -------------------
     Participant's Account Balance determined as provided in this Section 7.2,
     as of the date of Termination of Employment, and shall be paid in a lump
     sum within ninety (90) days following the Termination of Employment. In
     determining the Account Balance for purposes of this Article 7 only,
     interest shall be calculated in the manner provided in Section 3.7(a)
     above, but using the applicable interest rate set forth in the following
     schedules:

                      Number of                           Interest
                 Participation Years                   Crediting Rate
                 -------------------                   --------------

For Employees:
- -------------

                  Less than 2 years                           0
              More than 2 but less than 7               Moody's Rate
                      7 or more                     125% of Moody's Rate

For Directors:
- -------------
 
                      All years                     125% of Moody's Rate

     In the event a Participant is both an Employee and Director, interest shall
     be credited under the Employee schedule.


                                   Article 8
                                  Disability

8.1  Eligibility for Disability Waiver. If a Participant suffers a Disability
     ---------------------------------
     during any Plan Year during the Deferral Commitment Period, the
     Participant's annual deferral amount for that Plan Year or any subsequent
     Plan Year shall, except as provided in this Section 8.1, be as set forth in
     his or her Election Form for the first six (6) months that a Participant
     suffers from a Disability and shall be satisfied from supplemental sources
     of disability income as provided by either the Company or the Participant.
     If a Participant's Disability exceeds 

                                       9
<PAGE>
 
     six (6) consecutive months, the Participant shall be excused from making
     any additional deferrals while he or she is suffering from a Disability.

8.2  Benefits. A Participant suffering a Disability, but not terminated as a
     --------
     result of long-term disability under the Employer's policies and practices,
     shall continue to be considered a Participant and shall be eligible for the
     benefits provided for in Articles 4, 5, 6 or 7 in accordance with the
     provisions of those Articles.

8.3  Long-Term Disability-Termination. For a Participant who is terminated as a
     --------------------------------
     result of disability under the Employer's policies and practices, the
     provisions of Article 5 shall apply for purposes of Account Balance
     distribution and interest crediting.


                                   Article 9
                                  Beneficiary

9.1  Beneficiary. Each Participant shall have the right, at any time, to
     -----------
     designate any person or persons as his or her Beneficiary or Beneficiaries
     (both primary as well as contingent) to receive any benefits payable under
     the Plan to a Beneficiary upon the death of a Participant.

9.2  Beneficiary Designation; Change; Spousal Consent. A Participant shall
     ------------------------------------------------
     designate his or her Beneficiary or Beneficiaries by completing and signing
     the Beneficiary Designation Form, and returning it to the Committee. A
     Participant shall have the right to change a Beneficiary by completing,
     signing and otherwise complying with the terms of the Beneficiary
     Designation Form and the Committee's rules or procedures, as in effect from
     time to time. Upon the acceptance of the Committee of a new Beneficiary
     Designation form, all Beneficiary designations previously filed shall be
     canceled. The Committee shall be entitled to rely on the last Beneficiary
     Designation form filed by the Participant and accepted by the Committee
     prior to his or her death.

9.3  Acknowledgment. No designation or change in designation of a Beneficiary
     --------------
     shall be effective until received, accepted and acknowledged in writing by
     the Committee.

9.4  No Beneficiary Designation. If a Participant fails to designate a
     --------------------------
     Beneficiary as provided above, or if all designated Beneficiaries
     predecease the Participant or die prior to complete distribution of the
     Participant's benefits, then the Participant's designated Beneficiary shall
     be deemed to be his or her surviving spouse. If the Participant has no
     surviving spouse, the benefits remaining under the Plan to be paid to a
     Beneficiary shall be payable to the executor or personal representative of
     the Participant's estate.

9.5  Doubt as to Beneficiary.  If the Committee has any doubt as to the proper
     -----------------------
     Beneficiary to receive payments pursuant to this Plan, they shall have the
     right to withhold such payments until this matter is resolved to their
     satisfaction.

                                      10
<PAGE>
 
9.6  Discharge of Obligations. The payment of benefits under the Plan to a
     ------------------------
     Beneficiary shall fully and completely discharge the Employer from all
     further obligations under this Plan with respect to the deceased
     Participant and all of his or her Beneficiaries.


                                  Article 10
                               Leave of Absence

10.1 Authorized Leave of Absence. If a Participant is authorized by the Employer
     ---------------------------
     for any reason to take a paid leave of absence from employment, such
     Participant shall continue to be considered employed as an Employee or
     Director and shall be required to maintain the level of deferrals set forth
     in his or her Plan Agreement in order to keep the Plan Agreement in full
     force and effect. If such leave of absence is unpaid, the Participant shall
     continue to be considered employed as an Employee or Director and will be
     excused from making deferrals until the unpaid leave of absence ends;
     provided, however, that if the unpaid leave of absence continues beyond
     three consecutive months, the Participant shall be treated as having
     incurred a Termination of Employment as of the end of such three month
     period and the Participant shall receive the Termination Benefit in
     accordance with Article 7. In the case of a conflict between this Article
     10 and Article 8, Article 8 shall prevail.


                                  Article 11
                        Employer/Participant Liability

11.1 General Assets.  Amounts payable to a Participant shall be paid from the
     --------------
     general assets of the Employer exclusively.

11.2 Employer's Liability. The Employer's liability for the payment of benefits
     --------------------
     shall be defined only by this Plan, as entered into between the Employer
     and a Participant.

11.3 Limitation of Obligation.  The Employer shall have no obligation to a
     ------------------------
     Participant under the Plan, except as expressly provided for in the Plan.

11.4 Participant Cooperation. The Participant must cooperate with the Employer
     -----------------------
     and the Committee in furnishing all information requested by the Employer
     and/or Committee in order to facilitate the payment of benefits, and the
     administration and operations of this Plan. Such information may include
     taking a physical examination, or other actions, and such cooperation shall
     extend beyond the termination of the Plan Agreement and the Employee's
     Participation in the Plan.

11.5 Unsecured General Creditor. Participants, their Beneficiaries and their
     --------------------------
     permitted heirs, successors and assigns shall have no legal or equitable
     rights, interest or claims in any property or assets of the Employer. Any
     and all of the Employer's assets shall be, and remain, the general,
     unpledged unrestricted assets of the Employer. The Employer's obligations
     under the Plan shall be merely that of an unfunded and unsecured promise of
     the Employer to pay money in the future.

                                      11
<PAGE>
 
                                  Article 12
                          No Guarantee of Employment

12.1 No Guarantee of Employment. Nothing in this Agreement shall be construed as
     --------------------------
     altering in any manner the employment relationship with an Employee or
     Director, which is hereby acknowledged to be an "at will" employment
     relationship that can be terminated at any time for any reason, with or
     without cause, unless otherwise expressly provided in a written employment
     agreement. All terms and conditions of an Employee's or Director's current
     employment shall remain the same. Nothing in this Plan creates, or is meant
     to create, any obligation on the part of the Employer to keep an Employee
     or Director employed by the Employer or not to terminate an Employee or
     Director at any time and for any reason.


                                  Article 13
              Termination, Amendment or Modification of the Plan

13.1 Termination. The Company reserves the right to terminate the Plan at any
     -----------
     time. Upon termination of the Plan, the Participant's Account Balance shall
     be paid out in accordance with the benefits that the Participant would
     receive if there had occurred a Termination of Employment with respect to
     the Participant on the date of Plan termination or, if such termination
     occurs after the Retirement Date, the Participant had retired on the date
     of Plan termination. Notwithstanding the above, the termination of the Plan
     shall not affect any Participant or Beneficiary who has become entitled to
     the payment of benefits under the Plan as of the date of termination.

13.2 Amendment. The Company may, at any time, amend or modify the Plan in whole
     ---------
     or in part, provided, however, that no amendment or modification shall be
     effective to decrease or restrict a Participant's Account Balance in
     existence at the time the amendment or modification is made, calculated as
     if there had occurred a Termination of Employment with respect to such
     Participant as of the effective date of the amendment or, if such amendment
     occurs after the Retirement Date, the Participant had retired as of the
     effective date of the amendment. The amendment or modification of the Plan
     shall not affect any Participant or Beneficiary who has become entitled to
     the payment of benefits under the Plan as of the date of the amendment or
     modification.

13.3 Termination of Plan Agreement. Absent the earlier termination, modification
     -----------------------------
     or amendment of the Plan, the Plan Agreement of any Participant shall
     terminate upon the full payment of the applicable benefit provided under
     Articles 4, 5, 6, or 7, as the case may be.

13.4 Change in Control.
     -----------------

     (a) All benefits accrued under the Plan as of the date of a Change of
         Control shall thereafter be paid in accordance with the terms and
         conditions of this Plan. However, if at any time during a period of
         three years following a Change of Control 

                                      12
<PAGE>
 
         of the Company, the employment of a participant by the Employer is
         terminated (i) by the Employer for any reason other than for Cause, or
         (ii) by the Participant for just reason, then all benefits, including
         all interest at the full 125% of Moody's rate shall apply and not at
         the rates applicable in Section 7.2. Such amounts will thereupon be
         immediately due and payable in full, less any withholdings required by
         law, to such Participant, and within ten business days thereafter the
         Employer, or any successor corporation of the Employer shall deliver
         payment of such Account Balance to such Participant.

         A Participant shall be deemed to have terminated his or her employment
         for just reason if he or she resigns voluntarily after a demotion, a
         material reduction in his or her authority or responsibility or any
         reduction in his or her compensation or after being notified of a
         relocation of his or her work place that would materially increase the
         commuting distance from his or her then current principal residence.

         A Participant shall be deemed to have been terminated by the Employer
         for cause only if such participant has been terminated by reason of (i)
         a willful failure by such Participant to substantially perform his or
         her duties other than a failure resulting from the Participant's
         incapacity due to physical or mental illness, or (ii) a willful act by
         the Participant that constitutes gross misconduct and is materially
         injurious to the Employer. No act or failure to act by a Participant
         shall be considered "willful" unless committed without good faith and
         without a reasonable belief that the act of omission was in the best
         interests of the Employer.

     (b) As used in this Plan, "Change of Control" means the occurrence of any
         of the following events:

         (i)   Any "person" (as such term is used in Sections 13(d) and 14(d) of
               the Securities Exchange Act of 1934, hereinafter "Person")
               becomes the beneficial owner, directly or indirectly, of
               securities of the Company representing twenty-five percent (25%)
               or more of the combined voting power of the Company's then
               outstanding securities ordinarily (and apart from rights accruing
               under special circumstances) having the right to vote at
               elections of directors;

         (ii)  A change in the composition of the Board as a result of which
               fewer than two-thirds (2/3rds) of the incumbent directors are
               Continuing Directors; or

         (iii) A change of control that would be required to be reported in a
               proxy statement pursuant to Item 5(f) of Schedule 14A of
               Regulation 14A under the Securities Exchange Act of 1934.

         An individual shall be considered a "Continuing Director" on a
         particular date if he or she either (i) had been a member of the Board
         twenty-four (24) months prior to such date or (ii) was elected, or
         nominated for election, to the Board with the affirmative votes of at
         least a majority of the members of the Board twenty-four (24) months
         prior to such date and who were still in office at the time of the
         election or nomination.

                                      13
<PAGE>
 
13.5 Termination, Modification or Amendment Following Change in Control.
     ------------------------------------------------------------------
     Following a Change in Control, neither the Company, any subsidiary of the
     Company nor any corporation, trust or other Person that succeeds to all or
     any substantial portion of the assets of the Company shall have the right
     to terminate, modify, or amend a Plan Agreement in effect prior to such
     Change in Control, and all benefits under such Plan Agreement shall
     thereafter be paid in accordance with the terms of such Plan Agreement as
     in effect immediately prior to such Change in Control. Any provision of
     this Plan to the contrary shall be construed in accordance with this
     Section 13.5.

13.6 Legal Fees To Enforce Rights After Change in Control. The Company is aware
     ----------------------------------------------------
     that upon the occurrence of a Change in Control, the Board (which might
     then be composed of new members) or a shareholder of the Company or of any
     successor corporation might then cause or attempt to cause the Company or
     such successor to refuse to comply with its obligations under the Plan and
     might cause or attempt to cause the Company to institute, or may institute,
     litigation seeking to deny Participants the benefits intended under the
     Plan. In these circumstances, the purpose of the Plan could be frustrated.
     It is the intent of the Company that Participants not be required to incur
     the expenses associated with the enforcement of their rights under the Plan
     by litigation or other legal action, because the cost and expense thereof
     would substantially detract from the benefits intended to be extended to
     Participants hereunder, and that Participants not be bound to negotiate any
     settlement of their rights under the Plan under threat of incurring such
     expenses. Accordingly, if, following a Change in Control, it should appear
     to any Participant that the Company has failed to comply with any of its
     obligations under the Plan or any agreement thereunder or, if the Company
     or any other Person takes any action to declare the Plan or any agreement
     hereunder void or unenforceable or institutes any litigation or other legal
     action designed to deny, diminish or to recover from any Participant the
     benefits intended to be provided to each Participant under the Plan, and
     such Participant has substantially complied with all of his or her
     obligations under the Plan and any such agreement, then the Company
     irrevocably authorizes such Participant from time to time to retain counsel
     of his or her choice at the expense of the Company to represent such
     Participant in connection with the initiation or defense of any litigation
     or other legal action, whether by or against the Company or any director,
     officer, shareholder or other person affiliated with the Company or any
     successor thereto in any jurisdiction. Notwithstanding any existing or
     prior attorney-client relationship between the Company and such counsel,
     the Company irrevocably consents to each Participant's entering into an
     attorney-client relationship with such counsel, and in that connection the
     Company and each Participant agree that a confidential relationship shall
     exist between each such Participant and his counsel. The Company shall pay
     or reimburse each Participant for all reasonable fees and expenses of
     counsel selected by such Participant from time to time on a regular,
     periodic basis from presentation of a statement or statements prepared by
     such counsel in accordance with its customary practices up to a maximum
     aggregate amount of $500,000.

13.7 Vesting.  Notwithstanding anything that may be construed to the contrary in
     -------
     this Plan, a Participant shall at all times be 100% vested in his or her
     Deferral Amount.

                                      14
<PAGE>
 
                                  Article 14
                         Other Benefits and Agreements

14.1 Coordination with Other Benefits. The benefits provided for a Participant
     --------------------------------
     and Participant's Beneficiary under the Plan are in addition to any other
     benefits available to such Participant under any other plan or program for
     employees of the Employer. The Plan shall supplement and shall not
     supersede, modify or amend any other such plan or program except as may
     otherwise be expressly provided.


                                  Article 15
                    Restrictions on Alienation of Benefits

15.1 Nonassignability.  Neither a Participant nor any other person shall have
     ----------------
     any right to commute, sell, assign, transfer, pledge, anticipate, mortgage
     or otherwise encumber, transfer, hypothecate or convey in advance of actual
     receipt, the amounts if any, payable hereunder, or any part thereof. No
     part of the amounts payable shall, prior to actual payment, be subject to
     any claims of creditors and, in particular, they shall not be subject to
     attachment, garnishment, seizure or sequestration by any creditor for the
     payment of any debts, judgments, obligations, alimony or separate
     maintenance owed by a Participant.


                                  Article 16
                          Administration of the Plan

16.1 Committee Administration. The general administration of this Plan, as well
     ------------------------
     as construction and interpretation thereof, shall be the responsibility of
     the Committee, the number of members of which shall be designated and
     appointed from time to time by, and shall serve at the pleasure of the
     Board.

16.2 Committee Authority. Subject to the Plan, the Committee shall from time to
     -------------------
     time establish rules, forms and procedures for the administration of the
     Plan. Except as otherwise expressly provided, the Committee shall have the
     exclusive right to interpret the Plan and to decide any and all matters
     arising thereunder. The Committee's decisions shall be conclusive and
     binding upon all persons having or claiming to have any right or interest
     under the Plan.

16.3 Committee Indemnity. No member of the Committee shall be liable for any act
     -------------------
     or omission of any other member of the Committee, nor for any act or
     omission on his own part, excepting his or her own willful misconduct. The
     Employer shall indemnify and save harmless each member of the Committee
     against any and all expenses and liabilities arising out of his or her
     membership on the Committee, with the exception of expenses and liabilities
     arising out of his or her own willful misconduct.

                                      15
<PAGE>
 
16.4 Employer's Obligations to the Committee. To enable the Committee to perform
     ---------------------------------------
     its functions, each Employer shall supply full and timely information to
     the Committee on all matters relating to the compensation of all
     Participants, their retirement, death, Disability or Termination of
     Employment, and such other pertinent facts as the Committee may require.

16.5 Committee Discretion in Payment Schedule. The Committee shall also have the
     ----------------------------------------
     power, at its sole discretion, to change the manner and timing of payments
     to be made to a Participant or Participant's Beneficiary from that set
     forth in the Participant's Plan Agreement, if requested to do so by such
     Participant or Beneficiary.


                                  Article 17
                               Claims Procedures

17.1 Presentation of Claim. Any Participant or Beneficiary of a deceased
     ---------------------
     Participant (such Participant or Beneficiary being referred to below as a
     "Claimant") may deliver to the Committee a written claim for a
     determination with respect to the amounts (i) credited to (or deducted
     from) such Claimant's Participant's Account Balance, or (ii) distributable
     to such Claimant from the Plan. If such a claim relates to the contents of
     a notice received by the Claimant, the claim must be made within 60 days
     after such notice was received by the Claimant. The claim must state with
     particularity the determination desired by the Claimant.

17.2 Notification of Decision.  The Committee shall consider a Claimant's claim
     ------------------------
     within a reasonable time, and shall notify the Claimant in writing:

     (a) that the Claimant's requested determination has been made, and that the
         claim has been allowed in full; or

     (b) that the Committee has reached a conclusion contrary, in whole or in
         part, to the Claimant's requested determination, and such notice must
         set forth in a manner calculated to be understood by the Claimant:

         (i)   the specific reason(s) for the denial of the claim, or any part
               of it;

         (ii)  specific reference(s) to pertinent provisions of the Plan upon
               which such denial was based;

         (iii) a description of any additional material or information necessary
               for the Claimant to perfect the claim, and an explanation of why
               such material or information is necessary; and

         (iv)  an explanation of the claim review procedure set forth in Section
               17.3.

                                      16
<PAGE>
 
17.3 Review of a Denied Claim. Within sixty (60) days after receiving a notice
     ------------------------
     from the Committee that a claim has been denied, in whole or in part, a
     Claimant (or the Claimant's duly authorized representative) may file with
     the Committee a written request for a review of the denial of the claim.
     Thereafter, but not later than thirty (30) days after the review procedure
     began, the Claimant (or the Claimant's duly authorized representative):

     (a) may review pertinent documents;

     (b) may submit written comments or other documents; and/or

     (c) may request a hearing, which the Committee, in its sole discretion, may
         grant.

17.4 Decision on Review. The Committee shall render its decision on review
     ------------------
     promptly, and not later than sixty (60) days after the filing of a written
     request for review of the denial, unless a hearing is held or other special
     circumstances require additional time, in which case the Committee's
     decision must be rendered within 120 days after such date. Such decision
     must be written in a manner calculated to be understood by the Claimant,
     and it must contain:

     (a) specific reasons for the decision;

     (b) specific reference(s) to the pertinent Plan provisions upon which the
         decision was based; and

     (c) such other matters as the Committee deems relevant.


                                  Article 18
                                     Trust

18.1 Establishment of the Trust. The Company shall establish the Trust. The
     --------------------------
     Employer shall at least annually transfer over to the Trust such assets as
     the Committee determines, in its sole discretion, are necessary to provide
     for the Employer's future liabilities created with respect to the Deferral
     Amounts and interest credits for that year.

18.2 Interrelationship of the Plan and the Trust. The provisions of the Plan and
     -------------------------------------------
     the Plan Agreement shall govern the rights of a Participant to receive
     distributions pursuant to the Plan. The provisions of the Trust shall
     govern the rights of the Employer, Participant and the creditors of the
     Employer to the assets transferred to the Trust. The Employer shall at all
     times remain liable to carry out its obligations under the Plan. The
     Employer's obligations under the Plan may be satisfied with Trust assets
     distributed pursuant to the terms of the Trust.

                                      17
<PAGE>
 
                                  Article 19
                                 Miscellaneous

19.1 Notice.  Any notice given under the Plan shall be in writing and shall be
     ------
     mailed to:

                         JACOBS ENGINEERING GROUP INC.
                         Employee Benefits
                         251 South Lake Avenue
                         Pasadena, California  91101

19.2 Successors. The Plan shall be binding upon the Employer and its respective
     ----------
     successors or assigns, and upon a Participant, the Participant's
     Beneficiaries and the Participant's permitted assigns, heirs, executors and
     administrators.

19.3 Spouse's Interest. The interest in the benefits hereunder of a spouse of a
     -----------------
     Participant who has predeceased the Participant shall automatically pass to
     the Participant and shall not be transferable by such spouse in any manner
     including but not limited to such spouse's will, nor shall such interest
     pass under the laws of intestate succession.

19.4 Governing Law. The Plan and Plan Agreement shall be governed by and
     -------------
     construed under the laws of the State of California, as in effect at the
     time of their adoptions and executions, respectively.

19.5 Pronouns.  Masculine pronouns wherever used shall include feminine pronouns
     --------
     and the singular shall include the plural.

19.6 Headings. The headings of the articles, sections and paragraphs of this
     --------
     Plan are for convenience only and shall not control or affect the meaning
     or construction of any of its provisions.

19.7 Validity. In the event any provision of this Plan shall be illegal or
     --------
     invalid for any reason, the illegality or invalidity of that provision
     shall not affect the remaining parts hereof, but this Plan shall be
     construed and enforced as if such illegal and invalid provision had never
     been inserted herein.

                                      18
<PAGE>
 
IN WITNESS WHEREOF JACOBS ENGINEERING GROUP INC. has signed this Plan document
this 1st day of December, 1993.

                          "Company"                     
                          JACOBS ENGINEERING GROUP INC. 
                                                                 
                          By:  /s/ John W.Prosser, Jr.
                             -------------------------------------- 
                                   John W. Prosser, Jr.
       
                          Title: Senior Vice President, Finance 
                                   and Admin. and Treasurer
                                 ----------------------------------
                                    (Officer of the Company)  


                                      19

<PAGE>
 
                                                                   EXHIBIT 10.11

                         JACOBS ENGINEERING GROUP, INC.
                            401(k) PLUS SAVINGS PLAN

                            Plan and Trust Agreement



                                Second Complete
                           Amendment and Restatement
                      Generally Effective January 1, 1990
<PAGE>
 
       Jacobs Engineering Group, Inc. 401(k) Plus Savings Plan and Trust

                   Second Complete Amendment and Restatement
                      Generally Effective January 1, 1990


Jacobs Engineering Group, Inc. previously established the Jacobs Engineering
Group Inc. Thrift Savings Retirement Plan as renamed the Jacobs Engineering
Group, Inc. 401(k) Plus Savings Plan effective January 1, 1990, for the benefit
of eligible employees of the Company and its participating affiliates.  The Plan
is intended to constitute a qualified profit sharing plan, as described in Code
section 401(a), which includes a qualified cash or deferred arrangement, as
described in Code section 401(k).

The provisions of this Plan and Trust relating to the Trustee constitute the
trust agreement which is entered into by and between Jacobs Engineering Group,
Inc. and Wells Fargo Bank, National Association.  The Trust is intended to be
tax exempt as described under Code section 501(a).

The Plan constitutes an amendment and restatement of the Jacobs Engineering
Group Inc. Thrift Savings Retirement Plan as renamed the Jacobs Engineering
Group, Inc. 401(k) Plus Savings Plan effective January 1, 1990, which was
originally established effective as of October 1, 1974, and its related trust
agreement.

The Jacobs Engineering Group, Inc. 401(k) Plus Savings Plan and Trust, as set
forth in this document, is hereby amended and restated generally effective as of
January 1, 1990.  This constitutes a second complete amendment and restatement
generally effective January 1, 1990.


Date: December 22, 1994           Jacobs Engineering Group, Inc.
 
                                  By:  /s/ Signature Appears Here
                                     -----------------------------------------
                                    Title: Sr. V.P. Finance and Administration
                                          ------------------------------------

The trust agreement set forth in those provisions of this Plan and Trust which
relate to the Trustee is hereby executed.

Date: December 23, 1994           Wells Fargo Bank, National Association

                                  By:  /s/ Signature Appears Here
                                     -----------------------------------------
                                    Title: Vice President
                                          ------------------------------------

Date: December 23, 1994           Wells Fargo Bank, National Association

                                  By:  /s/ Signature Appears Here
                                     -----------------------------------------
                                    Title: Vice President
                                          ------------------------------------
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>
 
<C>   <S>                                                      <C>
1     DEFINITIONS..............................................   1
      -----------
 
2     ELIGIBILITY..............................................   8
      -----------
      2.1   Eligibility........................................   8
      2.2   Ineligible Employees...............................   8
      2.3   Ineligible or Former Participants..................   8
 
3     PARTICIPANT CONTRIBUTIONS................................   9
      -------------------------
      3.1   Pre-Tax Contribution Election......................   9
      3.2   Changing a Contribution Election...................   9
      3.3   Revoking and Resuming a Contribution Election......   9
      3.4   Contribution Percentage Limits.....................   9
      3.5   Refunds When Contribution Dollar Limit Exceeded....  10
      3.6   Timing, Posting and Tax Considerations.............  10
 
4     ROLLOVERS & TRUST-TO-TRUST TRANSFERS.....................  11
      ------------------------------------
      4.1   Rollovers..........................................  11
      4.2   Transfers From Other Qualified Plans...............  11
 
5     EMPLOYER CONTRIBUTIONS...................................  12
      ----------------------
      5.1   Matching Contributions.............................  12
 
6     ACCOUNTING...............................................  13
      ----------
      6.1   Individual Participant Accounting..................  13
      6.2   Sweep Account is Transaction Account...............  13
      6.3   Trade Date Accounting and Investment Cycle.........  13
      6.4   Accounting for Investment Funds....................  13
      6.5   Payment of Fees and Expenses.......................  13
      6.6   Accounting for Participant Loans...................  14
      6.7   Error Correction...................................  14
      6.8   Participant Statements.............................  15
      6.9   Special Accounting During Conversion Period........  15
      6.10  Accounts for QDRO Beneficiaries....................  15
 
7     INVESTMENT FUNDS AND ELECTIONS...........................  16
      ------------------------------
      7.1   Investment Funds...................................  16
      7.2   Investment Fund Elections..........................  16
      7.3   Responsibility for Investment Choice...............  16
      7.4   Default if No Election.............................  16
      7.5   Timing.............................................  17
      7.6   Investment Fund Election Change Fees...............  17
 
8     VESTING & FORFEITURES....................................  18
      ---------------------
      8.1   Fully Vested Contribution Accounts.................  18
      8.2   Forfeitures Prior to the Effective Date............  18
      8.3   Rehired Employees..................................  18
</TABLE>

                                       i
<PAGE>
 
<TABLE>
<C>   <S>                                                        <C>
9     PARTICIPANT LOANS........................................  19
      -----------------
      9.1   Participant Loans Permitted........................  19
      9.2   Loan Application, Note and Security................  19
      9.3   Spousal Consent....................................  19
      9.4   Loan Approval......................................  19
      9.5   Loan Funding Limits................................  19
      9.6   Maximum Number of Loans............................  20
      9.7   Source and Timing of Loan Funding..................  20
      9.8   Interest Rate......................................  20
      9.9   Repayment..........................................  20
      9.10  Repayment Hierarchy................................  21
      9.11  Repayment Suspension...............................  21
      9.12  Loan Default.......................................  21
      9.13  Call Feature.......................................  21
 
10    IN-SERVICE WITHDRAWALS...................................  22
      ----------------------
      10.1  In-Service Withdrawals Permitted...................  22
      10.2  In-Service Withdrawal Application and Notice.......  22
      10.3  Spousal Consent....................................  22
      10.4  In-Service Withdrawal Approval.....................  22
      10.5  Minimum Amount, Payment Form and Medium............  22
      10.6  Source and Timing of In-Service Withdrawal Funding.  23
      10.7  Hardship Withdrawals...............................  23
      10.8  After-Tax Account Withdrawals......................  24
      10.9  Rollover Account Withdrawals.......................  25
      10.10 Over Age 59 1/2 Withdrawals........................  25
 
11    DISTRIBUTIONS ONCE EMPLOYMENT ENDS OR AS REQUIRED BY LAW.  26
      --------------------------------------------------------
      11.1  Benefit Information, Notices and Election..........  26
      11.2  Spousal Consent....................................  26
      11.3  Payment Form and Medium............................  26
      11.4  Source and Timing of Distribution Funding..........  27
      11.5  Latest Commencement Permitted......................  27
      11.6  Payment Within Life Expectancy.....................  27
      11.7  Incidental Benefit Rule............................  27
      11.8  Payment to Beneficiary.............................  28
      11.9  Beneficiary Designation............................  28
 
12    ADP AND ACP TESTS........................................  29
      -----------------
      12.1  Contribution Limitation Definitions................  29
      12.2  ADP and ACP Tests..................................  32
      12.3  Correction of ADP and ACP Tests....................  32
      12.4  Multiple Use Test..................................  33
      12.5  Correction of Multiple Use Test....................  33
      12.6  Adjustment for Investment Gain or Loss.............  33
      12.7  Testing Responsibilities and Required Records......  34
      12.8  Separate Testing...................................  34
</TABLE>

                                      ii
<PAGE>
 
<TABLE>
<C>   <S>                                                        <C>
13    MAXIMUM CONTRIBUTION AND BENEFIT LIMITATIONS.............  35
      --------------------------------------------
      13.1  "Annual Addition" Defined..........................  35
      13.2  Maximum Annual Addition............................  35
      13.3  Avoiding an Excess Annual Addition.................  35
      13.4  Correcting an Excess Annual Addition...............  35
      13.5  Correcting a Multiple Plan Excess..................  36
      13.6  "Defined Benefit Fraction" Defined.................  36
      13.7  "Defined Contribution Fraction" Defined............  36
      13.8  Combined Plan Limits and Correction................  36
 
14    TOP HEAVY RULES..........................................  37
      ---------------
      14.1  Top Heavy Definitions..............................  37
      14.2  Special Contributions..............................  38
      14.3  Adjustment to Combined Limits for Different Plans..  39
  
15    PLAN ADMINISTRATION......................................  40
      -------------------
      15.1  Plan Delineates Authority and Responsibility.......  40
      15.2  Fiduciary Standards................................  40
      15.3  Company is ERISA Plan Administrator................  40
      15.4  Administrator Duties...............................  41
      15.5  Advisors May be Retained...........................  41
      15.6  Delegation of Administrator Duties.................  42
      15.7  Committee Operating Rules..........................  42
 
16    MANAGEMENT OF INVESTMENTS................................  43
      -------------------------
      16.1  Trust Agreement....................................  43
      16.2  Investment Funds...................................  43
      16.3  Authority to Hold Cash.............................  43
      16.4  Trustee to Act Upon Instructions...................  44
      16.5  Administrator Has Right to
            Vote Registered Investment Company Shares..........  44
      16.6  Custom Fund Investment Management..................  44
      16.7  Authority to Segregate Assets......................  45
 
17    TRUST ADMINISTRATION.....................................  46
      --------------------
      17.1  Trustee to Construe Trust..........................  46
      17.2  Trustee To Act As Owner of Trust Assets............  46
      17.3  United States Indicia of Ownership.................  46
      17.4  Tax Withholding and Payment........................  47
      17.5  Trustee Duties and Limitations.....................  47
      17.6  Trust Accounting...................................  47
      17.7  Valuation of Certain Assets........................  48
      17.8  Legal Counsel......................................  48
      17.9  Fees and Expenses..................................  48
</TABLE>

                                      iii
<PAGE>
 
<TABLE>
<C>   <S>                                                        <C>
18    RIGHTS, PROTECTION, CONSTRUCTION AND JURISDICTION........  49
      -------------------------------------------------
      18.1  Plan Does Not Affect Employment Rights.............  49
      18.2  Limited Return of Contributions....................  49
      18.3  Assignment and Alienation..........................  49
      18.4  Facility of Payment................................  50
      18.5  Reallocation of Lost Participant's Accounts........  50
      18.6  Claims Procedure...................................  50
      18.7  Construction.......................................  51
      18.8  Jurisdiction and Severability......................  51
      18.9  Indemnification by Employer........................  51

19    AMENDMENT, MERGER AND TERMINATION........................  52
      ---------------------------------
      19.1  Amendment..........................................  52
      19.2  Merger.............................................  52
      19.3  Plan Termination...................................  52
      19.4  Termination of Employer's Participation............  53
      19.5  Replacement of the Trustee.........................  53
      19.6  Final Settlement and Accounting of Trustee.........  53
 
APPENDIX A - INVESTMENT FUNDS..................................  55
 
APPENDIX B - PAYMENT OF PLAN FEES AND EXPENSES.................  56
 
APPENDIX C - LOAN INTEREST RATE................................  57
</TABLE>

                                      iv
<PAGE>
 
1    DEFINITIONS
     -----------

     When capitalized, the words and phrases below have the following meanings
     unless different meanings are clearly required by the context:

     1.1  "Account".  The records maintained for purposes of accounting for a
          Participant's interest in the Plan.  "Account" may refer to one or all
          of the following accounts which have been created on behalf of a
          Participant to hold specific types of Contributions under the Plan or
          to hold Contributions made under the plan of a Related Company in
          which a Participant formerly participated and which have been
          transferred to this Plan on behalf of a Participant:

          (a)   "Pre-Tax Account".  An account created to hold Pre-Tax
                Contributions.

          (b)   "After-Tax Account".  An account created to hold After-Tax
                Contributions.

          (c)   "Rollover Account".  An account created to hold Rollover
                Contributions.

          (d)   "Matching Account".  An account created to hold Matching
                Contributions.

          (e)   "Prior Plan Account".  An account created to hold Prior Plan
                Contributions.

     1.2  "ACP" or "Average Contribution Percentage".  The percentage calculated
          in accordance with Section 12.1.

     1.3  "Administrator".  The Company, which may delegate all or a portion of
          the duties of the Administrator under the Plan to a Committee in
          accordance with Section 15.6.

     1.4  "ADP" or "Average Deferral Percentage".  The percentage calculated in
          accordance with Section 12.1.

     1.5  "Beneficiary".  The person or persons who is to receive benefits after
          the death of the Participant pursuant to the "Beneficiary Designation"
          paragraph in Section 11, or as a result of a QDRO.

     1.6  "Code".  The Internal Revenue Code of 1986, as amended.  Reference to
          any specific Code section shall include such section, any valid
          regulation promulgated thereunder, and any comparable provision of any
          future legislation amending, supplementing or superseding such
          section.

     1.7  "Committee".  If applicable, the committee which has been appointed by
          the Company to administer the Plan in accordance with Section 15.6.

     1.8  "Company".  Jacobs Engineering Group, Inc. or any successor by merger,
                     purchase or otherwise.

                                       1
<PAGE>
 
     1.9  "Compensation".  The sum of a Participant's Taxable Income and salary
          reductions, if any, pursuant to Code sections 125, 402(e)(3), 402(h),
          403(b), 414(h)(2) or 457.

          For purposes of determining benefits under this Plan, Compensation is
          limited to $200,000 (as indexed for the cost of living pursuant to
          Code sections 401(a)(17) and 415(d)) per Plan Year.  For purposes of
          determining benefits under this Plan for Plan Years beginning after
          December 31, 1993, Compensation is limited to $150,000 (as indexed for
          the cost of living pursuant to Code sections 401(a)(17) and 415(d))
          per Plan Year.

          For purposes of the preceding sentences, in the case of an HCE who is
          a 5% Owner or one of the 10 most highly compensated Employees, (i)
          such HCE and such HCE's family group (as defined below) shall be
          treated as a single employee and the Compensation of each family group
          member shall be aggregated with the Compensation of such HCE, and (ii)
          the limitation on Compensation shall be allocated among such HCE and
          his or her family group members in proportion to each individual's
          Compensation before the application of this sentence.  For purposes of
          this Section, the term "family group" shall mean an Employee's spouse
          and lineal descendants who have not attained age 19 before the close
          of the year in question.

          For the purpose of determining HCEs and key employees, Compensation
          for the entire Plan Year shall be used.  For the purpose of
          determining ADP and ACP, Compensation shall be limited to amounts paid
          to an Eligible Employee while a Participant.

     1.10 "Contribution".  An amount contributed to the Plan by the Employer or
          an Eligible Employee, and allocated by contribution type to
          Participants' Accounts, as described in Section 1.1.  For purposes
          below, references to Employer and Plan shall also include the employer
          under the plan of a Related Company and the plan of a Related Company
          described in the preceding sentence.  Specific types of contribution
          include:

          (a)   "Pre-Tax Contribution".  An amount contributed by the Employer
                on an eligible Participant's behalf in conjunction with a
                Participant's Code section 401(k) salary deferral election.

          (b)   "After-Tax Contribution".  An amount previously contributed by a
                Participant on an after-tax basis under former Plan provisions,
                which continue to be accounted for in the Plan.

          (c)   "Rollover Contribution".  An amount contributed by an Eligible
                Employee which originated from another employer's qualified
                plan.

          (d)   "Matching Contribution".  An amount contributed by the Employer
                on an eligible Participant's behalf based upon the amount
                contributed by the eligible Participant.

                                       2
<PAGE>
 
          (e)   "Prior Plan Contribution".  An amount previously contributed by
                the Employer on an eligible Participant's behalf under former
                Plan provisions, which continue to be accounted for in the Plan.

     1.11 "Contribution Dollar Limit".  The annual limit placed on each
          Participant's Pre-Tax Contributions, which shall be $7,000 per
          calendar year (as indexed for the cost of living pursuant to Code
          sections 402(g)(5) and 415(d)).  For purposes of this Section, a
          Participant's Pre-Tax Contributions shall include (i) any Employer
          contribution made under any qualified cash or deferred arrangement as
          defined in Code section 401(k) to the extent not includible in gross
          income for the taxable year under Code section 402(e)(3) or
          402(h)(1)(B) (determined without regard to Code section 402(g)), and
          (ii) any Employer contribution to purchase an annuity contract under
          Code section 403(b) under a salary reduction agreement (within the
          meaning of Code section 3121(a)(5)(D)).

     1.12 "Direct Rollover".  A payment from the Plan to an Eligible Retirement
          Plan specified by a Distributee.

     1.13 "Disability".  A Participant's total and permanent, mental or physical
          disability resulting in termination of employment as evidenced by (a)
          receipt of disability payments under the Employer's long-term
          disability program or (b) presentation of medical evidence
          satisfactory to the Administrator.

     1.14 "Distributee".  An Employee or former Employee, the surviving spouse
          of an Employee or former Employee and a spouse or former spouse of an
          Employee or former Employee determined to be an alternate payee under
          a QDRO.

     1.15 "Effective Date".  January 1, 1990, unless stated otherwise.  The date
          upon which the provisions of this document become effective.  In
          general, the provisions of this document only apply to Participants
          who are Employees on or after the Effective Date.  However, investment
          and distribution provisions apply to all Participants with Account
          balances to be invested or distributed after the Effective Date.

     1.16 "Eligible Employee".  An Employee of an Employer, except any Employee:

          (a)   whose compensation and conditions of employment are covered by a
                collective bargaining agreement to which an Employer is a party
                unless the agreement calls for the Employee's participation in
                the Plan;

          (b)   who is treated as an Employee because he or she is a Leased
                Employee;

          (c)   who is a nonresident alien who (i) either receives no earned
                income (within the meaning of Code section 911(d)(2)), from
                sources within the United States under Code section 861(a)(3);
                or (ii) receives such earned income from such sources within the
                United States but such income is exempt from United States
                income tax under an applicable income tax convention;

                                       3
<PAGE>
 
          (d)  who is a temporary Employee; or

          (e)  who is a part-time Employee.

     1.17 "Eligible Retirement Plan".  An individual retirement account
          described in Code section 408(a), an individual retirement annuity
          described in Code section 408(b), an annuity plan described in Code
          section 403(a), or a qualified trust described in Code section 401(a),
          that accepts a Distributee's Eligible Rollover Distribution, except
          that with regard to an Eligible Rollover Distribution to a surviving
          spouse, an Eligible Retirement Plan is an individual retirement
          account or individual retirement annuity.

     1.18 "Eligible Rollover Distribution".   A distribution of all or any
          portion of the balance to the credit of a Distributee, excluding a
          distribution that is one of a series of substantially equal periodic
          payments (not less frequently than annually) made for the life (or
          life expectancy) of a Distributee or the joint lives (or joint life
          expectancies) of a Distributee and the Distributee's designated
          Beneficiary, or for a specified period of ten years or more; a
          distribution to the extent such distribution is required under Code
          section 401(a)(9); and the portion of a distribution that is not
          includible in gross income (determined without regard to the exclusion
          for net unrealized appreciation with respect to Employer securities).

     1.19 "Employee".  An individual who is:

          (a)   directly employed by any Related Company and for whom any income
                for such employment is subject to withholding of income or
                social security taxes, or

          (b)   a Leased Employee.

     1.20 "Employer".  The Company and any Subsidiary or other Related Company
          of either the Company or a Subsidiary which adopts this Plan with the
          approval of the Company.

     1.21 "ERISA".  The Employee Retirement Income Security Act of 1974, as
          amended.  Reference to any specific section shall include such
          section, any valid regulation promulgated thereunder, and any
          comparable provision of any future legislation amending, supplementing
          or superseding such section.

     1.22 "Execution Date".  The date on which this Plan and Trust document is
          executed.

     1.23 "Forfeiture Account".  An account holding amounts forfeited by
          Participants who have left the Employer, invested in interest bearing
          deposits of the Trustee, pending disposition as provided in this Plan
          and Trust and as directed by the Administrator.

     1.24 "HCE" or "Highly Compensated Employee".  An Employee described as a
          Highly Compensated Employee in Section 12.

                                       4
<PAGE>
 
     1.25 "Hour of Service".  Each hour for which an Employee is entitled to:

          (a)   payment for the performance of duties for any Related Company;

          (b)   payment from any Related Company for any period during which no
                duties are performed (irrespective of whether the employment
                relationship has terminated) due to vacation, holiday, sickness,
                incapacity (including disability), layoff, leave of absence,
                jury duty or military service;

          (c)   back pay, irrespective of mitigation of damages, by award or
                agreement with any Related Company (and these hours shall be
                credited to the period to which the agreement pertains); or

          (d)   no payment, but is on a Leave of Absence (and these hours shall
                be based upon his or her normally scheduled hours per week or a
                40 hour week if there is no regular schedule).

          The crediting of hours for which no duties are performed shall be in
          accordance with Department of Labor regulation sections 2530.200b-2(b)
          and (c).  Actual hours shall be used whenever an accurate record of
          hours are maintained for an Employee.  Otherwise, an equivalent number
          of hours shall be credited for each payroll period in which the
          Employee would be credited with at least 1 hour.  The payroll period
          equivalencies are 45 hours weekly, 90 hours biweekly, 95 hours
          semimonthly and 190 hours monthly.

          An Employee's service with a predecessor or acquired company shall
          only be counted in the determination of his or her Hours of Service
          for eligibility and/or vesting purposes if (1) the Company directs
          that credit for such service be granted, or (2) a qualified plan of
          the predecessor or acquired company is subsequently maintained by any
          Employer or Related Company.

     1.26  "Ineligible".  The Plan status of an individual during the period in
          which he or she is (1) an Employee of a Related Company which is not
          then an Employer, (2) an Employee, but not an Eligible Employee, or
          (3) not an Employee.

     1.27 "Investment Fund" or "Fund".  An investment fund as described in
          Section 16.2.  The Investment Funds authorized by the Administrator to
          be offered as of the Execution Date to Participants and Beneficiaries
          are as set forth in Appendix A.

     1.28 "Leased Employee".  An individual who is deemed to be an employee of
          any Related Company as provided in Code section 414(n) or (o).

     1.29 "Leave of Absence".  A period during which an individual is deemed to
          be an Employee, but is absent from active employment, provided that
          the absence:

          (a)   was authorized by a Related Company; or

                                       5
<PAGE>
 
          (b)   was due to military service in the United States armed forces
                and the individual returns to active employment within the
                period during which he or she retains employment rights under
                federal law.

     1.30 "NHCE" or "Non-Highly Compensated Employee".  An Employee described as
          a Non-Highly Compensated Employee in Section 12.

     1.31 "Normal Retirement Date".  The date of a Participant's 65th birthday.

     1.32 "Owner".  A person with an ownership interest in the capital, profits,
          outstanding stock or voting power of a Related Company within the
          meaning of Code section 318 or 416 (which exclude indirect ownership
          through a qualified plan).

     1.33 "Participant".  An Eligible Employee who begins to participate in the
          Plan after completing the eligibility requirements as described in
          Section 2.1.  An Eligible Employee who makes a Rollover Contribution
          prior to completing the eligibility requirements as described in
          Section 2.1 shall also be considered a Participant except for purposes
          of provisions related to Contributions (other than a Rollover
          Contribution). A Participant's participation continues until his or
          her employment with all Related Companies ends and his or her Account
          is distributed or forfeited.

     1.34 "Pay".  The base pay paid to an Eligible Employee by an Employer while
          a Participant during the current period.

          Pay is neither increased nor decreased by any salary credit or
          reduction pursuant to Code sections 125 or 402(e)(3).  Pay is limited
          to $200,000 (as indexed for the cost of living pursuant to Code
          sections 401(a)(17) and 415(d)) per Plan Year.  Pay is limited to
          $150,000 (as indexed for the cost of living pursuant to Code sections
          401(a)(17) and 415(d)) per Plan Year effective for Plan Years
          beginning after December 31, 1993.

     1.35 "Plan".  The Jacobs Engineering Group, Inc. 401(k) Plus Savings Plan
          set forth in this document, as from time to time amended.

     1.36 "Plan Year".  The annual accounting period of the Plan and Trust which
          ends on each December 31.

     1.37 "QDRO".  A domestic relations order which the Administrator has
          determined to be a qualified domestic relations order within the
          meaning of Code section 414(p).

     1.38 "Related Company".  With respect to any Employer, that Employer and
          any corporation, trade or business which is, together with that
          Employer, a member of the same controlled group of corporations, a
          trade or business under common control, or an affiliated service group
          within the meaning of Code section 414(b), (c), (m) or (o).

                                       6
<PAGE>
 
     1.39 "Settlement Date". The date on which the transactions from the most
          recent Trade Date are settled.  Effective April 1, 1992, for each
          Trade Date, the Trustee's next business day.

     1.40 "Spousal Consent".  The written consent given by a spouse to a
          Participant's  election or waiver of a specified form of benefit,
          including a loan or in-service withdrawal, or Beneficiary designation.
          The spouse's consent must acknowledge the effect on the spouse of the
          Participant's election, waiver or designation and be duly witnessed by
          a notary public.  Spousal Consent shall be valid only with respect to
          the spouse who signs the Spousal Consent and only for the particular
          choice made by the Participant which requires Spousal Consent.  A
          Participant may revoke (without Spousal Consent) a prior election,
          waiver or designation that required Spousal Consent at any time before
          payments begin.  Spousal Consent also means a determination by the
          Administrator that there is no spouse, the spouse cannot be located,
          or such other circumstances as may be established by applicable law.

     1.41 "Subsidiary".  A company which is 50% or more owned, directly or
          indirectly, by the Company.

     1.42 "Sweep Account".  The subsidiary Account for each Participant through
          which all transactions are processed, which is invested in interest
          bearing deposits of the Trustee.

     1.43 "Sweep Date".  The cut off date and time for receiving instructions
          for transactions to be processed on the next Trade Date.

     1.44 "Taxable Income".  Compensation in the amount reported by the Employer
          as "Wages, tips, other compensation" on Form W-2, or any successor
          method of reporting under Code section 6041(d).

     1.45 "Trade Date".  Each day the Investment Funds are valued, which is the
          last business day of the month.  Effective April 1, 1992, each day the
          Investment Funds are valued, which is normally every day the assets of
          such Funds are traded.

     1.46 "Trust".  The legal entity created by those provisions of this
          document which relate to the Trustee.  The Trust is part of the Plan
          and holds the Plan assets which are comprised of the aggregate of
          Participants' Accounts and the Forfeiture Account.

     1.47 "Trustee".  Wells Fargo Bank, National Association.

                                       7
<PAGE>
 
2    ELIGIBILITY
     -----------

     2.1  Eligibility

          All Participants as of January 1, 1990 shall continue their
          eligibility to participate.  Each other Eligible Employee shall become
          a Participant on the first day of the next month after the date he or
          she completes a 12 month eligibility period in which he or she is
          credited with at least 1,000 Hours of Service.  The initial
          eligibility period begins on the date an Employee first performs an
          Hour of Service.  Subsequent eligibility periods begin with the start
          of each Plan Year beginning after the first Hour of Service is
          performed.

     2.2  Ineligible Employees

          If an Employee completes the above eligibility requirements, but is
          Ineligible at the time participation would otherwise begin (if he or
          she were not Ineligible), he or she shall become a Participant on the
          first subsequent date on which he or she is an Eligible Employee.

     2.3  Ineligible or Former Participants

          A Participant may not make or share in Plan Contributions, nor
          generally be eligible for a new Plan loan, during the period he or she
          is Ineligible, but he or she shall continue to participate for all
          other purposes. An Ineligible Participant or former Participant shall
          automatically become an active Participant on the date he or she again
          becomes an Eligible Employee.

                                       8
<PAGE>
 
3    PARTICIPANT CONTRIBUTIONS
     -------------------------

     3.1  Pre-Tax Contribution Election

          Upon becoming a Participant, an Eligible Employee may elect to reduce
          his or her Pay by an amount which does not exceed the Contribution
          Dollar Limit, within the limits described in the Contribution
          Percentage Limits paragraph of this Section 3, and have such amount
          contributed to the Plan by the Employer as a Pre-Tax Contribution.
          The election shall be made as a whole percentage of Pay in such manner
          and with such advance notice as prescribed by the Administrator.  In
          no event shall an Employee's Pre-Tax Contributions under the Plan and
          all other plans, contracts or arrangements of all Related Companies
          exceed the Contribution Dollar Limit for the Employee's taxable year
          beginning in the Plan Year.

     3.2  Changing a Contribution Election

          A Participant who is an Eligible Employee may change his or her Pre-
          Tax Contribution election as of any January 1, April 1, July 1 or
          October 1 in such manner and with such advance notice as prescribed by
          the Administrator.  The changed percentage shall become effective with
          the first payroll paid after such date.  Participants' Contribution
          election percentages shall automatically apply to Pay increases or
          decreases.

     3.3  Revoking and Resuming a Contribution Election

          A Participant may revoke his or her Contribution election at any time
          in such manner and with such advance notice as prescribed by the
          Administrator, and such election shall be effective with the first
          payroll paid after such date.

          A Participant may resume Contributions by making a new Contribution
          election at the same time in which a Participant may change his or her
          election in such manner and with such advance notice as prescribed by
          the Administrator, and such election shall be effective with the first
          payroll paid after such date.

     3.4  Contribution Percentage Limits

          The Administrator may establish and change from time to time, without
          the necessity of amending this Plan and Trust document, the minimum,
          if applicable, and maximum Pre-Tax Contribution percentages,
          prospectively or retrospectively (for the current Plan Year), for all
          Participants. In addition, the Administrator may establish any lower
          percentage limits for Highly Compensated Employees as it deems
          necessary. As of the Effective Date, the maximum Contribution
          percentages are:

                                       9
<PAGE>
 
<TABLE>
<CAPTION>
                                             Highly            
                Contribution              Compensated              All Other
                    Type                   Employees             Participants
                    ----                   ---------             ------------ 
                <S>                       <C>                    <C>
                  Pre-Tax                      6%                     15%
</TABLE> 
 
          Effective April 1, 1992, the maximum Contribution percentages are:

<TABLE> 
<CAPTION> 
                                             Highly            
                Contribution              Compensated              All Other
                    Type                   Employees             Participants
                    ----                   ---------             ------------ 
                <S>                       <C>                    <C>
                  Pre-Tax                      6%                     185%
</TABLE> 

          Irrespective of the limits that may be established by the
          Administrator in accordance with this paragraph, in no event shall the
          contributions made by or on behalf of a Participant for a Plan Year
          exceed the maximum allowable under Code section 415.

     3.5  Refunds When Contribution Dollar Limit Exceeded

          A Participant who makes Pre-Tax Contributions for a calendar year to
          this and any other qualified defined contribution plan in excess of
          the Contribution Dollar Limit may notify the Administrator in writing
          by the following March 1 (or as late as April 14 if allowed by the
          Administrator) that an excess has occurred.  In this event, the amount
          of the excess specified by the Participant, adjusted for investment
          gain or loss, shall be refunded to him or her by April 15 and shall
          not be included as an Annual Addition under Code section 415 for the
          year contributed.  Refunds shall not include investment gain or loss
          for the period between the end of the applicable Plan Year and the
          date of distribution. However, for Plan Years ending before December
          31, 1993, refunds shall include investment gain or loss for the period
          between the end of the applicable Plan Year and the date of
          distribution.  Any Matching Contributions attributable to refunded
          excess Pre-Tax Contributions as described in this Section shall be
          deemed a Contribution made by reason of a mistake of fact and removed
          from the Participant's Account.

     3.6  Timing, Posting and Tax Considerations

          Participants' Contributions, other than Rollover Contributions, may
          only be made through payroll deduction. Such amounts shall be paid to
          the Trustee in cash and posted to each Participant's Account(s) as
          soon as such amounts can reasonably be separated from the Employer's
          general assets and balanced against the specific amount made on behalf
          of each Participant. In no event, however, shall such amounts be paid
          to the Trustee more than 90 days after the date amounts are deducted
          from a Participant's Pay. Pre-Tax Contributions shall be treated as
          employer contributions in determining tax deductions under Code
          section 404(a).

                                      10
<PAGE>
 
4    ROLLOVERS & TRUST-TO-TRUST TRANSFERS
     ------------------------------------

     4.1  Rollovers

          The Administrator may authorize the Trustee to accept a rollover
          contribution in cash, within the meaning of Code section 402(c) or
          408(d)(3)(A)(ii), directly from an Eligible Employee or effective
          January 1, 1993, as a Direct Rollover from another qualified plan on
          behalf of the Eligible Employee, even if he or she is not yet a
          Participant.  The Employee shall be responsible for furnishing
          satisfactory evidence, in such manner as prescribed by the
          Administrator, that the amount is eligible for rollover treatment.  A
          rollover contribution received directly from an Eligible Employee must
          be paid to the Trustee in cash within 60 days after the date received
          by the Eligible Employee from a qualified plan or conduit individual
          retirement account.  Contributions described in this paragraph shall
          be posted to the applicable Employee's Rollover Account as of the date
          received by the Trustee.

          If it is later determined that an amount contributed pursuant to the
          above paragraph did not in fact qualify as a rollover contribution
          under Code section 402(c) or 408(d)(3)(A)(ii), the balance credited to
          the Employee's Rollover Account shall immediately be (1) segregated
          from all other Plan assets, (2) treated as a nonqualified trust
          established by and for the benefit of the Employee, and (3)
          distributed to the Employee.  Any such nonqualifying rollover shall be
          deemed never to have been a part of the Plan.

     4.2  Transfers From Other Qualified Plans

          The Administrator may instruct the Trustee to receive assets in cash
          or in kind directly from another qualified plan.  The Trustee may
          refuse the receipt of any transfer if:

          (a)   the Trustee finds the in-kind assets unacceptable;

          (b)   instructions for posting amounts to Participants' Accounts are
                incomplete;

          (c)   any amounts are not exempted by Code section 401(a)(11)(B) from
                the annuity requirements of Code section 417; or

          (d)   any amounts include benefits protected by Code section 411(d)(6)
                which would not be preserved under applicable Plan provisions.

          Such amounts shall be posted to the appropriate Accounts of
          Participants as of the date received by the Trustee.

                                      11
<PAGE>
 
5    EMPLOYER CONTRIBUTIONS
     ----------------------

     5.1  Matching Contributions
 
          (a)   Frequency and Eligibility.  For each period for which
                Participants' Contributions are made, the Employer shall make
                Matching Contributions as described in the following Allocation
                Method paragraph on behalf of each Participant who contributed
                during the period.

          (b)   Allocation Method.  The Matching Contributions (including any
                Forfeiture Account amounts applied as Matching Contributions in
                accordance with Section 8.2) for each period shall total 50% of
                each eligible Participant's Pre-Tax Contributions for the
                period, provided that no Matching Contributions (and Forfeiture
                Account amounts) shall be made based upon a Participant's
                Contributions in excess of 6% of his or her Pay.  The Employer
                may change the 50% matching rate or the 6% of considered Pay to
                any other percentages, including 0%, generally by notifying
                eligible Participants in sufficient time to adjust their
                Contribution elections prior to the start of the period for
                which the new percentages apply.

          (c)   Timing, Medium and Posting. The Employer shall make each
                period's Matching Contribution in cash as soon as is feasible,
                and not later than the Employer's federal tax filing date,
                including extensions, for deducting such Contribution. The
                Trustee shall post such amount to each Participant's Matching
                Account once the total Contribution received has been balanced
                against the specific amount to be credited to each Participant's
                Matching Account.

                                      12
<PAGE>
 
6    ACCOUNTING
     ----------

     6.1  Individual Participant Accounting

          The Administrator shall maintain an individual set of Accounts for
          each Participant in order to reflect transactions both by type of
          Contribution and investment medium.  Financial transactions shall be
          accounted for at the individual Account level by posting each
          transaction to the appropriate Account of each affected Participant.
          Participant Account values shall be maintained in shares for the
          Investment Funds and in dollars for their Sweep and Participant loan
          Accounts.  At any point in time, the Account value shall be determined
          using the most recent Trade Date values provided by the Trustee.

     6.2  Sweep Account is Transaction Account

          All transactions related to amounts being contributed to or
          distributed from the Trust shall be posted to each affected
          Participant's Sweep Account.  Any amount held in the Sweep Account
          will be credited with interest up until the date on which it is
          removed from the Sweep Account.

     6.3  Trade Date Accounting and Investment Cycle

          Participant Account values shall be determined as of each Trade Date.
          For any transaction to be processed as of a Trade Date, the Trustee
          must receive instructions for the transaction by the Sweep Date.  Such
          instructions shall apply to amounts held in the Account on that Sweep
          Date.  Financial transactions of the Investment Funds shall be posted
          to Participants' Accounts as of the Trade Date, based upon the Trade
          Date values provided by the Trustee, and settled on the Settlement
          Date.

     6.4  Accounting for Investment Funds

          Investments in each Investment Fund shall be maintained in shares.
          The Trustee is responsible for determining the share values of each
          Investment Fund as of each Trade Date.  To the extent an Investment
          Fund is comprised of collective investment funds of the Trustee, or
          any other fiduciary to the Plan, the share values shall be determined
          in accordance with the rules governing such collective investment
          funds, which are incorporated herein by reference.  All other share
          values shall be determined by the Trustee.  The share value of each
          Investment Fund shall be based on the fair market value of its
          underlying assets.

     6.5  Payment of Fees and Expenses

          Except to the extent Plan fees and expenses related to Account
          maintenance, transaction and Investment Fund management and
          maintenance, as set forth below, are paid by the Employer directly, or
          indirectly, through the Forfeiture

                                      13
<PAGE>
 
          Account as directed by the Administrator, such fees and expenses shall
          be paid as set forth below. The Employer may pay a lower portion of
          the fees and expenses allocable to the Accounts of Participants who
          are no longer Employees.

          (a)   Account Maintenance:  Account maintenance fees and expenses, may
                include but are not limited to, administrative, Trustee,
                government annual report preparation, audit, legal,
                nondiscrimination testing, and fees for any other special
                services.  Account maintenance fees shall be charged to
                Participants on a per Participant basis provided that no fee
                shall reduce a Participant's Account balance below zero.

          (b)   Transaction: Transaction fees and expenses, may include but are
                not limited to, recurring payment, Investment Fund election
                change and loan fees.  Transaction fees shall be charged to the
                Participant's Account involved in the transaction provided that
                no fee shall reduce a Participant's Account balance below zero.

          (c)   Investment Fund Management and Maintenance:  Management and
                maintenance fees and expenses related to the Investment Funds
                shall be charged at the Investment Fund level and reflected in
                the net gain or loss of each Fund.

          As of the Effective Date, a breakdown of which Plan fees and expenses
          shall generally be borne by the Trust (and charged to individual
          Participants' Accounts) and those that shall be paid by the Employer,
          directly or indirectly, is set forth in Appendix B and may be changed
          from time to time, without the necessity of amending this Plan and
          Trust Document.

          The Trustee shall have the authority to pay any such fees and
          expenses, which remain unpaid by the Employer for 60 days, from the
          Trust.

     6.6  Accounting for Participant Loans

          Participant loans shall be held in a separate Account of the
          Participant and accounted for in dollars as an earmarked asset of the
          borrowing Participant's Account.

     6.7  Error Correction

          The Administrator may correct any errors or omissions in the
          administration of the Plan by restoring any Participant's Account
          balance with the amount that would be credited to the Account had no
          error or omission been made. Funds necessary for any such restoration
          shall be provided through payment made by the Employer, or by the
          Trustee to the extent the error or omission is attributable to actions
          or inactions of the Trustee, or if the restoration involves an
          Employer Contribution Account, the Administrator may direct the
          Trustee to use amounts from the Forfeiture Account.

                                      14
<PAGE>
 
     6.8  Participant Statements

          The Administrator shall provide Participants with statements of their
          Accounts as soon after the end of each quarter of the Plan Year as is
          administratively feasible.

     6.9  Special Accounting During Conversion Period

          The Administrator and Trustee may use any reasonable accounting
          methods in performing their respective duties during the period of
          converting the prior accounting system of the Plan and Trust to
          conform to the individual Participant accounting system described in
          this Section.  This includes, but is not limited to, the method for
          allocating net investment gains or losses and the extent, if any, to
          which contributions received by and distributions paid from the Trust
          during this period share in such allocation.

     6.10 Accounts for QDRO Beneficiaries

          A separate Account shall be established for an alternate payee
          entitled to any portion of a Participant's Account under a QDRO as of
          the date and in accordance with the directions specified in the QDRO.
          In addition, a separate Account may be established during the period
          of time the Administrator, a court of competent jurisdiction or other
          appropriate person is determining whether a domestic relations order
          qualifies as a QDRO.  Such a separate Account shall be valued and
          accounted for in the same manner as any other Account.

          (a)   Distributions Pursuant to QDROs.  If a QDRO so provides, the
                portion of a Participant's Account payable to an alternate payee
                may be distributed, in a form as permissible under the
                Distribution Once Employment Ends Section, to the alternate
                payee at the time specified in the QDRO, regardless of whether
                the Participant is entitled to a distribution from the Plan at
                such time.

          (b)   Participant Loans.  Except to the extent required by law, an
                alternate payee, on whose behalf a separate Account has been
                established, shall not be entitled to borrow from such Account.
                If a QDRO specifies that the alternate payee is entitled to any
                portion of the Account of a Participant who has an outstanding
                loan balance, all outstanding loans shall generally continue to
                be held in the Participant's Account and shall not be divided
                between the Participant's and alternate payee's Accounts.

          (c)   Investment Direction. Where a separate Account has been
                established on behalf of an alternate payee and has not yet been
                distributed, the alternate payee may direct the investment of
                such Account in the same manner as if he or she were a
                Participant.

                                      15
<PAGE>
 
7    INVESTMENT FUNDS AND ELECTIONS
     ------------------------------

     7.1  Investment Funds

          Except for Participants' Sweep and loan Accounts, the Trust shall be
          maintained in various Investment Funds.  The Administrator shall
          select the Investment Funds offered to Participants and may change the
          number or composition of the Investment Funds, subject to the terms
          and conditions agreed to with the Trustee.  As of the Execution Date,
          a list of the Investment Funds offered to Participants is set forth in
          Appendix A, and may be changed from time to time, without the
          necessity of amending this Plan and Trust document.

     7.2  Investment Fund Elections

          Each Participant shall direct the investment of all of his or her
          Contribution Accounts.

          A Participant shall make his or her investment election in any
          combination of one or any number of the Investment Funds offered in
          accordance with the procedures established by the Administrator and
          Trustee.  However, during the period of converting the prior
          accounting system of the Plan and Trust to conform to the individual
          Participant accounting system described in Section 6, Trust assets may
          be held in any investment vehicle permitted by the Plan, as directed
          by the Administrator, irrespective of Participant investment
          elections.

          The Administrator may set a maximum percentage of the total election
          that a Participant may direct into any specific Investment Fund, which
          maximum, if any, is set forth in Appendix A, and may be changed from
          time to time, without the necessity of amending this Plan and Trust
          document.

     7.3  Responsibility for Investment Choice

          Each Participant shall be solely responsible for the selection of his
          or her Investment Fund choices.  No fiduciary with respect to the Plan
          is empowered to advise a Participant as to the manner in which his or
          her Accounts are to be invested, and the fact that an Investment Fund
          is offered shall not be construed to be a recommendation for
          investment.

     7.4  Default if No Election

          The Administrator shall specify an Investment Fund for the investment
          of that portion of a Participant's Account which is not yet held in an
          Investment Fund and for which no valid investment election is on file.
          The Investment Fund specified as of the Execution Date is as set forth
          in Appendix A, and may be changed from time to time, without the
          necessity of amending this Plan and Trust document.

                                      16
<PAGE>
 
     7.5  Timing

          A Participant shall make his or her initial investment election upon
          becoming a Participant and may change his or her election at any time
          in accordance with the procedures established by the Administrator and
          Trustee.  Investment elections received by the Trustee by the Sweep
          Date will be effective on the following Trade Date.

     7.6  Investment Fund Election Change Fees

          A reasonable processing fee may be charged directly to a Participant's
          Account for Investment Fund election changes in excess of a specified
          number per year as determined by the Administrator.

                                      17
<PAGE>
 
8    VESTING & FORFEITURES
     ---------------------

     8.1  Fully Vested Contribution Accounts

          A Participant shall be fully vested in all Accounts at all times.

          Notwithstanding, prior to the Effective Date a Participant's Matching
          Account became vested in accordance with a vesting schedule then in
          effect.

     8.2  Forfeitures Prior to the Effective Date

          Amounts representing forfeitures of non-vested Account balances from
          Employer Contribution Accounts as forfeited prior to the Effective
          Date in accordance with Plan provisions as then in effect, are
          maintained in a single Forfeiture Account, and invested in interest
          bearing deposits of the Trustee.  Forfeiture Account amounts shall be
          utilized to restore Accounts, to pay Plan fees and expenses, and to
          reduce Matching Contributions as directed by the Administrator.

     8.3  Rehired Employees

          If a former Employee who last terminated prior to the Effective Date
          is rehired subsequent to the Effective Date and before he or she has a
          break in service, as such term was defined prior to the Effective Date
          for this purpose, the amount forfeited when his or her employment last
          terminated shall be restored to his or her Account. The amount shall
          come from the Forfeiture Account to the extent possible, and any
          additional amount needed shall be contributed by the Employer. The
          Employee shall then be fully vested in his or her restored Account.

                                      18
<PAGE>
 
9    PARTICIPANT LOANS
     -----------------

     9.1  Participant Loans Permitted

          Loans to Participants are permitted pursuant to the terms and
          conditions set forth in this Section.

     9.2  Loan Application, Note and Security

          A Participant shall apply for any loan in such manner and with such
          advance notice as prescribed by the Administrator.  All loans shall be
          evidenced by a promissory note, secured only by the portion of the
          Participant's Account from which the loan is made, and the Plan shall
          have a lien on this portion of his or her Account.

     9.3  Spousal Consent

          A Participant is required to obtain Spousal Consent in order to take
          out a loan under the Plan.

     9.4  Loan Approval

          The Administrator, or the Trustee if otherwise authorized by the
          Administrator and expressly agreed to by the Trustee, is responsible
          for determining that a loan request conforms to the requirements
          described in this Section and granting such request.

     9.5  Loan Funding Limits

          The loan amount must meet all of the following limits as determined as
          of the Sweep Date the loan is processed:

          (a)   Plan Minimum Limit.  The minimum amount for any loan is $1,000.
                Effective April 1, 1992, the minimum amount for any loan is
                $500.

          (b)   Plan Maximum Limit.  Subject to the legal limit described in (c)
                below, the maximum a Participant may borrow, including the
                outstanding balance of existing Plan loans, is 100% of the
                following Accounts which are fully vested:

                     Pre-Tax Account
                     Matching Account
                     Prior Plan Account
                     Rollover Account
                     After-Tax Account

                                      19
<PAGE>
 
          (c)   Legal Maximum Limit.  The maximum a Participant may borrow,
                including the outstanding balance of existing Plan loans, is 50%
                of his or her vested Account balance, not to exceed $50,000.
                However, the $50,000 maximum is reduced by the Participant's
                highest outstanding loan balance during the 12 month period
                ending on the day before the Sweep Date as of which the loan is
                made.  For purposes of this paragraph, the qualified plans of
                all Related Companies shall be treated as though they are part
                of this Plan to the extent it would decrease the maximum loan
                amount.

     9.6  Maximum Number of Loans

          A Participant may have only one loan outstanding at any given time.

     9.7  Source and Timing of Loan Funding

          A loan to a Participant shall be made solely from the assets of his or
          her own Accounts.  The available assets shall be determined first by
          Account type and then by investment type within each type of Account.
          The hierarchy for loan funding by type of Account shall be the order
          listed in the preceding Plan Maximum Limit paragraph.  Within each
          Account used for funding a loan, amounts shall first be taken from the
          Sweep Account and then taken by type of investment in direct
          proportion to the market value of the Participant's interest in each
          Investment Fund as of the Trade Date on which the loan is processed.

          Loans will be funded on the Settlement Date following the Trade Date
          as of which the loan is processed.  The Trustee shall make payment to
          the Participant as soon thereafter as administratively feasible.

     9.8  Interest Rate

          The interest rate charged on Participant loans shall be a fixed
          reasonable rate of interest, determined from time to time by the
          Administrator, which provides the Plan with a return commensurate with
          the prevailing interest rate charged by persons in the business of
          lending money for loans which would be made under similar
          circumstances.  As of the Effective Date, the interest rate is
          determined as set forth in Appendix C, and may be changed from time to
          time, without the necessity of amending this Plan and Trust document.

     9.9  Repayment

          Substantially level amortization shall be required of each loan with
          payments made at least monthly, generally through payroll deduction.
          Loans may be prepaid in full or in part at any time. The Participant
          may choose the loan repayment period, not to exceed five years.

                                      20
<PAGE>
 
     9.10 Repayment Hierarchy

          Loan principal repayments shall be credited to the Participant's
          Accounts in the inverse of the order used to fund the loan.  Loan
          interest shall be credited to the Participant's Accounts in direct
          proportion to the principal payment.  Loan payments are credited by
          investment type based upon the Participant's current investment
          election for new Contributions.

     9.11 Repayment Suspension

          The Administrator may agree to a suspension of loan payments for up to
          12 months for a Participant who is on a Leave of Absence.  During the
          suspension period interest shall continue to accrue on the outstanding
          loan balance.  At the expiration of the suspension period all
          outstanding loan payments and accrued interest thereon shall be due
          unless otherwise agreed upon by the Administrator.

     9.12 Loan Default

          A loan is treated as a default if scheduled loan payments are more
          than 90 days late.  A Participant shall then have 30 days from the
          time he or she receives written notice of the default and a demand for
          past due amounts to cure the default before it becomes final.

          In the event of default, the Administrator may direct the Trustee to
          report the default as a taxable distribution.  As soon as a Plan
          withdrawal or distribution to such Participant would otherwise be
          permitted, the Administrator may instruct the Trustee to execute upon
          its security interest in the Participant's Account by distributing the
          note to the Participant.

     9.13 Call Feature

          The Administrator shall have the right to call any Participant loan
          once a Participant's employment with all Related Companies has
          terminated or if the Plan is terminated.

                                      21
<PAGE>
 
10   IN-SERVICE WITHDRAWALS
     ----------------------

     10.1 In-Service Withdrawals Permitted

          In-service withdrawals to a Participant who is an Employee are
          permitted pursuant to the terms and conditions set forth in this
          Section and as required by law as set forth in Section 11.5.

     10.2 In-Service Withdrawal Application and Notice

          A Participant shall apply for any in-service withdrawal in such manner
          and with such advance notice as prescribed by the Administrator.
          Effective for in-service withdrawals applied for after December 31,
          1992, the Participant shall be provided the notice prescribed by Code
          section 402(f).

          If an in-service withdrawal is one to which Code sections 401(a)(11)
          and 417 do not apply, such in-service withdrawal may commence less
          than 30 days after the aforementioned notice is provided, if:

          (a)   the Participant is clearly informed that he or she has the right
                to a period of at least 30 days after receipt of such notice to
                consider his or her option to elect or not elect a Direct
                Rollover for the portion, if any, of his or her in-service
                withdrawal which will constitute an Eligible Rollover
                Distribution; and

          (b)   the Participant after receiving such notice, affirmatively
                elects a Direct Rollover for the portion, if any, of his or her
                in-service withdrawal which will constitute an Eligible Rollover
                Distribution or alternatively elects to have such portion made
                payable directly to him or her, thereby not electing a Direct
                Rollover.

     10.3 Spousal Consent

          A Participant is required to obtain Spousal Consent in order to make
          an in-service withdrawal under the Plan.  Effective January 1, 1995, a
          Participant is not required to obtain Spousal Consent in order to make
          an in-service withdrawal under the Plan.

     10.4 In-Service Withdrawal Approval

          The Administrator, or the Trustee if otherwise authorized by the
          Administrator and expressly agreed to by the Trustee, is responsible
          for determining that an in-service withdrawal request conforms to the
          requirements described in this Section and granting such request.

     10.5 Minimum Amount, Payment Form and Medium

          There is no minimum amount for any type of withdrawal.

                                      22
<PAGE>
 
          For withdrawals made after December 31, 1992, with regard to the
          portion of a withdrawal representing an Eligible Rollover
          Distribution, a Participant may elect a Direct Rollover.  The form of
          payment for an in-service withdrawal shall be a single lump sum and
          payment shall be made in cash.

     10.6 Source and Timing of In-Service Withdrawal Funding

          An in-service withdrawal to a Participant shall be made solely from
          the assets of his or her own Accounts and will be based on the Account
          values as of the Trade Date the in-service withdrawal is processed.
          The available assets shall be determined first by Account type and
          then by investment type within each type of Account.  Within each
          Account used for funding an in-service withdrawal, amounts shall first
          be taken from the Sweep Account and then taken by type of investment
          in direct proportion to the market value of the Participant's interest
          in each Investment Fund (which excludes Participant loans) as of the
          Trade Date on which the in-service withdrawal is processed.

          In-Service withdrawals will be funded on the Settlement Date following
          the Trade Date as of which the in-service withdrawal is processed.
          The Trustee shall make payment as soon thereafter as administratively
          feasible.

     10.7 Hardship Withdrawals

          No in-service withdrawals are permitted from a Participant's Account
          because of hardship.

          Effective April 1, 1992, withdrawals are permitted from a
          Participant's Account because of hardship.

          (a)   Requirements.  A Participant who is an Employee may request the
                withdrawal of up to the amount necessary to satisfy a financial
                need including amounts necessary to pay any federal, state or
                local income taxes or penalties reasonably anticipated to result
                from the withdrawal.  Only requests for withdrawals (1) on
                account of a Participant's "Deemed Financial Need", and (2)
                which are "Deemed Necessary" to satisfy the financial need will
                be approved.

          (b)   "Deemed Financial Need".  Financial commitments relating to:

                (1)  the payment of unreimbursable medical expenses described
                     under Code section 213(d) incurred (or to be incurred) by
                     the Employee, his or her spouse or dependents;

                (2)  the purchase (excluding mortgage payments) of the
                     Employee's principal residence;

                (3)  the payment of unreimbursable tuition and related
                     educational fees for up to the next 12 months of post-
                     secondary education for the Employee, his or her spouse or
                     dependents;

                                      23
<PAGE>
 
                (4)  the payment of amounts necessary for the Employee to
                     prevent losing his or her principal residence through
                     eviction or foreclosure on the mortgage; or

                (5)  any other circumstance specifically permitted under Code
                     section 401(k)(2)(B)(i)(IV).

          (c)   "Deemed Necessary".  A withdrawal is "deemed necessary" to
                satisfy the financial need only if the withdrawal amount does
                not exceed the financial need and all of these conditions are
                met:

                (1)  the Employee has obtained all other possible withdrawals
                     and nontaxable loans available from all plans maintained by
                     Related Companies;

                (2)  the Administrator shall suspend the Employee from making
                     any  contributions to this Plan, all other qualified and
                     nonqualified plans of deferred compensation and all stock
                     option or stock purchase plans maintained by Related
                     Companies for 12 months from the date the withdrawal
                     payment is made; and

                (3)  the Administrator shall reduce the Contribution Dollar
                     Limit for the Employee for the calendar year next following
                     the calendar year of the withdrawal by the amount of the
                     Employee's Pre-Tax Contributions for the calendar year of
                     the withdrawal.
 
          (d)   Account Sources for Withdrawal.  All available amounts must
                first be withdrawn from a Participant's After-Tax Account.  The
                remaining withdrawal amount shall come only from the
                Participant's fully vested Accounts, in the following priority
                order:

                     Rollover Account
                     Matching Account
                     Prior Plan Account
                     Pre-Tax Account

                The amount that may be withdrawn from a Participant's Pre-Tax
                Account shall not include any earnings credited to his or her
                Pre-Tax Contribution Account after the start of the first Plan
                Year beginning after December 31, 1988.

          (e)   Permitted Frequency.  There is no restriction on the number of
                Hardship withdrawals permitted to a Participant.

     10.8 After-Tax Account Withdrawals

          (a)   Requirements. A Participant who is an Employee may withdraw up
                to the entire balance from his or her After-Tax Account.

                                      24
<PAGE>
 
          (b)   Permitted Frequency.  There is no restriction on the number of
                After-Tax Account withdrawals permitted to a Participant.

          (c)   Suspension from Further Contributions.  An After-Tax Account
                withdrawal shall not affect a Participant's ability to make or
                be eligible to receive further Contributions.

     10.9 Rollover Account Withdrawals

          No in-service withdrawals are permitted from a Participant's Rollover
          Account except as provided elsewhere in this Section.

          Effective April 1, 1992, withdrawals from a Participant's Rollover
          Account are permitted.

          (a)   Requirements.  A Participant who is an Employee may withdraw up
                to the entire balance from his or her Rollover Account.

          (b)   Permitted Frequency.  There is no restriction on the number of
                Rollover Account withdrawals permitted to a Participant.

          (c)   Suspension from Further Contributions.  A Rollover Account
                withdrawal shall not affect a Participant's ability to make or
                be eligible to receive further Contributions.

     10.10  Over Age 59 1/2 Withdrawals

          (a)   Requirements.  A Participant who is an Employee and over age 59
                1/2 may withdraw from the Accounts listed in paragraph (b)
                below.

          (b)   Account Sources for Withdrawal.  The withdrawal amount shall
                come only from the Participant's fully vested Accounts, in the
                following priority order with the exception that the Participant
                may instead choose to have amounts taken from his or her After-
                Tax Account first, and except that prior to December 1, 1990, a
                Participant's Pre-Tax Account preceded his or her Rollover
                Account in the priority order:

                     Rollover Account
                     Pre-Tax Account
                     Matching Account
                     Prior Plan Account
                     After-Tax Account

          (c)   Permitted Frequency.  The maximum number of Over Age 59 1/2
                withdrawals permitted to a Participant in any 12-month period is
                one.

          (d)   Suspension from Further Contributions. An Over Age 59 1/2
                withdrawal shall not affect a Participant's ability to make or
                be eligible to receive further Contributions.

                                      25
<PAGE>
 
11   DISTRIBUTIONS ONCE EMPLOYMENT ENDS OR AS REQUIRED BY LAW
     ---------------------------------------------------------

     11.1 Benefit Information, Notices and Election

          A Participant, or his or her Beneficiary in the case of his or her
          death, shall be provided with information regarding all optional times
          and forms of distribution available, to include the notices prescribed
          by Code section 402(f), effective January 1, 1993, and Code section
          411(a)(11).  Subject to the other requirements of this Section, a
          Participant, or his or her Beneficiary in the case of his or her
          death, may elect, in such manner and with such advance notice as
          prescribed by the Administrator, to have his or her vested Account
          balance paid to him or her beginning upon any Settlement Date
          following the Participant's termination of employment with all Related
          Companies or, if earlier, at the time required by law as set forth in
          Section 11.5.

          If a distribution is one to which Code sections 401(a)(11) and 417 do
          not apply, such distribution may commence less than 30 days after the
          aforementioned notices are provided, if:

          (a)   the Participant is clearly informed that he or she has the right
                to a period of at least 30 days after receipt of such notices to
                consider the decision as to whether to elect a distribution and
                if so to elect a particular form of distribution and to elect or
                not elect a Direct Rollover for all or a portion, if any, of his
                or her distribution which will constitute an Eligible Rollover
                Distribution; and

          (b)   the Participant after receiving such notice, affirmatively
                elects a distribution and a Direct Rollover for all or a
                portion, if any, of his or her distribution which will
                constitute an Eligible Rollover Distribution or alternatively
                elects to have all or a portion made payable directly to him or
                her, thereby not electing a Direct Rollover for all or a portion
                thereof.

     11.2 Spousal Consent

          A Participant is required to obtain Spousal Consent in order to
          receive a distribution under the Plan.  Effective January 1, 1995, a
          Participant is not required to obtain Spousal Consent in order to
          receive a distribution under the Plan.

     11.3 Payment Form and Medium

          A Participant may elect to be paid in any of these forms:

          (a)  a single lump sum, or

          (b)  effective January 1, 1993, a portion paid in a lump sum, and the
               remainder paid later, or

          (c)  periodic installments over a period not to exceed the life
               expectancy of the Participant and his or her Beneficiary.

                                      26
<PAGE>
 
          Distributions shall generally be made in cash.  For distributions made
          after December 31, 1992, with regard to the portion of a distribution
          representing an Eligible Rollover Distribution, a Distributee may
          elect a Direct Rollover for all or a portion of such amount.

     11.4 Source and Timing of Distribution Funding

          A distribution to a Participant shall be made solely from the assets
          of his or her own Accounts and will be based on the Account values as
          of the Trade Date the distribution is processed.  The available assets
          shall be determined first by Account type and then by investment type
          within each type of Account.  Within each Account used for funding a
          distribution, amounts shall first be taken from the Sweep Account and
          then taken by type of investment in direct proportion to the market
          value of the Participant's interest in each Investment Fund as of the
          Trade Date on which the distribution is processed.

          Distributions will be funded on the Settlement Date following the
          Trade Date as of which the distribution is processed.  The Trustee
          shall make payment as soon thereafter as administratively feasible.

     11.5 Latest Commencement Permitted

          In addition to any other Plan requirements and unless a Participant
          elects otherwise, his or her benefit payments will begin not later
          than 60 days after the end of the Plan Year in which he or she attains
          his or her Normal Retirement Date or retires, whichever is later.
          However, if the amount of the payment or the location of the
          Participant (after a reasonable search) cannot be ascertained by that
          deadline, payment shall be made no later than 60 days after the
          earliest date on which such amount or location is ascertained but in
          no event later than as described below.

          Benefit payments shall begin by the April 1 immediately following the
          end of the calendar year in which the Participant attains age 70 1/2
          (whether or not he or she is an Employee), except that distribution
          for an Employee who was born before July 1, 1917 does not need to
          begin until his or her employment with all Related Companies ends.

     11.6 Payment Within Life Expectancy

          The Participant's payment election must be consistent with the
          requirement of Code section 401(a)(9) that all payments are to be
          completed within a period not to exceed the lives or the joint and
          last survivor life expectancy of the Participant and his or her
          Beneficiary.  The life expectancies of a Participant and his or her
          Beneficiary, if such Beneficiary is his or her spouse, may be
          recomputed annually

     11.7 Incidental Benefit Rule

          The Participant's payment election must be consistent with the
          requirement that, if the Participant's spouse is not his or her sole
          primary Beneficiary, the

                                      27
<PAGE>
 
          minimum annual distribution for each calendar year, beginning with the
          year in which he or she attains age 70 1/2 (or such later date as
          provided otherwise in Section 11), shall not be less than the quotient
          obtained by dividing (a) the Participant's vested Account balance as
          of the last Trade Date of the preceding year by (b) the applicable
          divisor as determined under the incidental benefit requirements of
          Code section 401(a)(9).

     11.8 Payment to Beneficiary

          Payment to a Beneficiary must either: (1) be completed by the end of
          the calendar year that contains the fifth anniversary of the
          Participant's death or (2) begin by the end of the calendar year that
          contains the first anniversary of the Participant's death and be
          completed within the period of the Beneficiary's life or life
          expectancy, except that:

          (a)   If the Participant dies after the April 1 immediately following
                the end of the calendar year in which he or she attains age 70
                1/2, payment to his or her Beneficiary must be made at least as
                rapidly as provided in the Participant's distribution election;

          (b)   If the surviving spouse is the Beneficiary, payments need not
                begin until the end of the calendar year in which the
                Participant would have attained age 70 1/2 and must be completed
                within the spouse's life or life expectancy; and

          (c)   If the Participant and the surviving spouse who is the
                Beneficiary die (1) before the April 1 immediately following the
                end of the calendar year in which the Participant would have
                attained age 70 1/2 and (2) before payments have begun to the
                spouse, the spouse will be treated as the Participant in
                applying these rules.

     11.9 Beneficiary Designation

          Each Participant may complete a beneficiary designation form
          indicating the Beneficiary who is to receive the Participant's
          remaining Plan interest at the time of his or her death.  The
          designation may be changed at any time.  However, a Participant's
          spouse shall be the sole primary Beneficiary unless the designation
          includes Spousal Consent for another Beneficiary.  If no proper
          designation is in effect at the time of a Participant's death or if
          the Beneficiary does not survive the Participant, the Beneficiary
          shall be, in the order listed, the:

          (a)   Participant's surviving spouse,

          (b)   Participant's children, in equal shares, per stirpes (by right
                                                         -----------          
                of representation), or

          (c)   Participant's estate.

                                      28
<PAGE>
 
12   ADP AND ACP TESTS
     -----------------

     12.1 Contribution Limitation Definitions

          The following definitions are applicable to this Section 12 (where a
          definition is contained in both Sections 1 and 12, for purposes of
          Section 12 the Section 12 definition shall be controlling):

          (a)   "ACP" or "Average Contribution Percentage".  The Average
                Percentage calculated using Contributions allocated to
                Participants as of a date within the Plan Year.

          (b)   "ACP Test".  The determination of whether the ACP is in
                compliance with the Basic or Alternative Limitation for a Plan
                Year (as defined in Section 12.2).

          (c)   "ADP" or "Average Deferral Percentage".  The Average Percentage
                calculated using Deferrals allocated to Participants as of a
                date within the Plan Year.

          (d)   "ADP Test".  The determination of whether the ADP is in
                compliance with the Basic or Alternative Limitation for a Plan
                Year (as defined in Section 12.2).

          (e)   "Average Percentage".  The average of the calculated percentages
                for Participants within the specified group.  The calculated
                percentage refers to either the "Deferrals" or "Contributions"
                (as defined in this Section) made on each Participant's behalf
                for the Plan Year, divided by his or her Compensation for the
                portion of the Plan Year in which he or she was an Eligible
                Employee while a Participant.  (Pre-Tax Contributions which will
                be refunded solely because they exceed the Contribution Dollar
                Limit are included in the percentage for the HCE Group but not
                for the NHCE Group if such excess Pre-Tax Contributions were
                made to plans of Related Companies.)

          (f)   "Contributions" shall include Matching Contributions.  In
                addition, Contributions may include Pre-Tax Contributions, but
                only to the extent that (1) the Employer elects to use them, (2)
                they are not used or counted in the ADP Test, and (3) they are
                necessary to meet the ACP Test Alternative Limitation (defined
                in Section 12.2 (b)) or the Multiple Use Test.

          (g)   "Deferrals" shall include Pre-Tax Contributions. In addition,
                for Plan Years ending on or before December 31, 1991, Deferrals
                may include Matching Contributions, but only to the extent that
                (1) the Employer elects to use them, (2) they are not used or
                counted in the ACP Test, and (3) such Contributions are fully
                vested when made and not withdrawable by an Employee before he
                or she attains age 59 1/2.

                                      29
<PAGE>
 
          (h)   "Family Member".  An Employee who is, at any time during the
                Plan Year or Lookback Year, a spouse, lineal ascendant or
                descendant, or spouse of a lineal ascendant or descendant of (1)
                an active or former Employee who at any time during Plan Year or
                Lookback Year is a more than 5% Owner (within the meaning of
                Code section 414(q)(3)), or (2) an HCE who is among the 10
                Employees with the highest Compensation for such Year.

          (i)   "HCE" or "Highly Compensated Employee".  With respect to each
                Employer and its Related Companies, an Employee during the Plan
                Year or Lookback Year who (in accordance with Code section
                414(q)):

                (1)  Was a more than 5% Owner at any time during the Lookback
                     Year or Plan Year;

                (2)  Received Compensation during the Lookback Year (or in the
                     Plan Year if among the 100 Employees with the highest
                     Compensation for such Year) in excess of (i) $75,000 (as
                     adjusted for such Year pursuant to Code sections 414(q)(1)
                     and 415(d)), or (ii) $50,000 (as adjusted for such Year
                     pursuant to Code sections 414(q)(1) and 415(d)) in the case
                     of a member of the "top-paid group" (within the meaning of
                     Code section 414(q)(4)) for such Year), provided, however,
                     that if the conditions of Code section 414(q)(12)(B)(ii)
                     are met, the Company may elect for any Plan Year to apply
                     clause (i) by substituting $50,000 for $75,000 and not to
                     apply clause (ii);

                (3)  Was an officer of a Related Company and received
                     Compensation during the Lookback Year (or in the Plan Year
                     if among the 100 Employees with the highest Compensation
                     for such Year) that is greater than 50% of the dollar
                     limitation in effect under Code section 415(b)(1)(A) and
                     (d) for such Year (or if no officer has Compensation in
                     excess of the threshold, the officer with the highest
                     Compensation), provided that the number of officers shall
                     be limited to 50 Employees (or, if less, the greater of
                     three Employees or 10% of the Employees); or

                (4)  Was a Family Member at any time during the Lookback Year or
                     Plan Year, in which case the Contributions and Compensation
                     of the HCE and his or her Family Members shall be
                     aggregated and they shall be treated as a single HCE.

                A former Employee shall be treated as an HCE if (1) such former
                Employee was an HCE when he separated from service, or (2) such
                former Employee was an HCE in service at any time after
                attaining age 55.

                                      30
<PAGE>
 
                The determination of who is an HCE, including the determinations
                of the number and identity of Employees in the top-paid group,
                the top 100 Employees and the number of Employees treated as
                officers shall be made in accordance with Code section 414(q).

          (j)   "HCE Group" and "NHCE Group".  With respect to each Employer and
                its Related Companies, the respective group of HCEs and NHCEs
                who are eligible to have amounts contributed on their behalf for
                the Plan Year, including Employees who would be eligible but for
                their election not to participate or to contribute, or because
                their Pay is greater than zero but does not exceed a stated
                minimum.

                (1)  If the Related Companies maintain two or more plans which
                     are subject to the ADP or ACP Test and are considered as
                     one plan for purposes of Code sections 401(a)(4) or 410(b),
                     all such plans shall be aggregated and treated as one plan
                     for purposes of meeting the ADP and ACP Tests, provided
                     that, for Plan Years beginning after December 31, 1989,
                     plans may only be aggregated if they have the same Plan
                     Year.

                (2)  If an HCE, who is one of the top 10 paid Employees or a
                     more than 5% Owner, has any Family Members, the Deferrals,
                     Contributions and Compensation of such HCE and his or her
                     Family Members shall be combined and treated as a single
                     HCE. Such amounts for all other Family Members shall be
                     removed from the NHCE Group percentage calculation and be
                     combined with the HCE's.

                (3)  If an HCE is covered by more than one cash or deferred
                     arrangement maintained by the Related Companies, all such
                     plans shall be aggregated and treated as one plan for
                     purposes of calculating the separate percentage for the HCE
                     which is used in the determination of the Average
                     Percentage.

                (4)  Employees who are eligible to participate in the Plan as a
                     result of a collective bargaining agreement shall be
                     excluded from both the HCE and NHCE Groups for Plan Years
                     beginning before January 1, 1993.

          (k)   "Lookback Year".  Pursuant to Code section 414(q), the Company
                elects as the Lookback Year the 12 months ending immediately
                prior to the start of the Plan Year.

          (l)   "Multiple Use Test". The test described in Section 12.4 which a
                Plan must meet where the Alternative Limitation (described in
                Section 12.2(b)) is used to meet both the ADP and ACP Tests.

                                      31
<PAGE>
 
          (m)   "NHCE" or "Non-Highly Compensated Employee".  An Employee who is
                not an HCE.

     12.2 ADP and ACP Tests

          For each Plan Year, the ADP and ACP for the HCE Group must meet either
          the Basic or Alternative Limitation when compared to the respective
          ADP and ACP for the NHCE Group, defined as follows:

          (a)   Basic Limitation.  The HCE Group Average Percentage may not
                exceed 1.25 times the NHCE Group Average Percentage.

          (b)   Alternative Limitation.  The HCE Group Average Percentage is
                limited by reference to the NHCE Group Average Percentage as
                follows:

<TABLE>
<CAPTION>
                    If the NHCE Group          Then the Maximum HCE      
                 Average Percentage is:    Group Average Percentage is:  
                 ------------------------  ----------------------------- 
                 <S>                       <C> 
                       Less than 2%         2 times NHCE Group Average % 
                         2% to 8%           NHCE Group Average % plus 2% 
                       More than 8%         NA - Basic Limitation applies 
</TABLE>

     12.3 Correction of ADP and ACP Tests

          If the ADP or ACP Tests are not met, the Administrator shall
          determine, no later than the end of the next Plan Year, a maximum
          percentage to be used in place of the calculated percentage for all
          HCEs that would reduce the ADP and/or ACP for the HCE group by a
          sufficient amount to meet the ADP and ACP Tests.

          (a)   ADP Correction.  Pre-Tax Contributions shall, by the end of the
                next Plan Year, be refunded (including amounts previously
                refunded because they exceeded the Contribution Dollar Limit) to
                the Participant in an amount equal to the actual Deferrals minus
                the product of the maximum percentage and the HCE's
                Compensation.  Any Matching Contributions attributable to
                refunded excess Pre-Tax Contributions as described in this
                Section 12.3(a) shall be deemed a Contribution made by reason of
                a mistake of fact and removed from the Participant's Account.

          (b)   ACP Correction.  Matching Contributions shall, by the end of the
                next Plan Year, be refunded to the Participant in an amount
                equal to the actual Contributions minus the product of the
                maximum percentage and the HCE's Compensation.

          (c)   Investment Fund Sources.  Once the amount of excess Deferrals
                and/or Contributions is determined amounts shall then be taken
                by type of
                                      32
<PAGE>
 
                investment in direct proportion to the market value of the
                Participant's interest in each Investment Fund (which excludes
                Participant loans) at the time the correction is made.

          (d)   Family Member Correction.  To the extent any reduction is
                necessary with respect to an HCE and his or her Family Members
                that have been combined and treated for testing purposes as a
                single Employee, the excess Deferrals and Contributions from the
                ADP and/or ACP Test shall be prorated among each such
                Participant in direct proportion to his or her Deferrals or
                Contributions included in each Test.

     12.4 Multiple Use Test

          If the Alternative Limitation (defined in Section 12.2) is used to
          meet both the ADP and ACP Tests, the ADP and ACP for the HCE Group
          must also comply with the requirements of Code section 401(m)(9). Such
          Code section requires that the sum of the ADP and ACP for the HCE
          Group (as determined after any corrections needed to meet the ADP and
          ACP Tests have been made) not exceed the sum (which produces the most
          favorable result) of:

          (a)   the Basic Limitation (defined in Section 12.2) applied to either
                the ADP or ACP for the NHCE Group, and

          (b)   the Alternative Limitation applied to the other NHCE Group
                percentage.

     12.5 Correction of Multiple Use Test

          If the multiple use limit is exceeded, the Administrator shall
          determine a maximum percentage to be used in place of the calculated
          percentage for all HCEs that would reduce either or both the ADP or
          ACP for the HCE Group by a sufficient amount to meet the multiple use
          limit.  Any excess shall be handled in the same manner that the
          distribution of excess Deferrals or Contributions are handled.

     12.6 Adjustment for Investment Gain or Loss

          Any excess Deferrals or Contributions to be refunded to a Participant
          in accordance with Section 12.3 or 12.5 shall be adjusted for
          investment gain or loss. Refunds shall not include investment gain or
          loss for the period between the end of the applicable Plan Year and
          the date of distribution. However, for Plan Years ending before
          December 31, 1993, refunds shall include investment gain or loss for
          the period between the end of the applicable Plan Year and the date of
          distribution.

                                      33
<PAGE>
 
     12.7 Testing Responsibilities and Required Records

          The Administrator shall be responsible for ensuring that the Plan
          meets the ADP, ACP and Multiple Use Tests and that the Contribution
          Dollar Limit is not exceeded.  In carrying out its responsibilities,
          the Administrator shall have sole discretion to limit or reduce
          Deferrals or Contributions at any time.  The Administrator shall
          maintain records which are sufficient to demonstrate that the ADP, ACP
          and Multiple Use Tests have been met for each Plan Year for at least
          as long as the Employer's corresponding tax year is open to audit.

     12.8 Separate Testing

          (a)   Multiple Employers:  The determination of HCEs, NHCEs, and the
                performance of the ADP, ACP and Multiple Use Tests and any
                corrective action resulting therefrom shall be made separately
                with regard to the Employees of each Employer (and its Related
                Companies) that is not a Related Company with the other
                Employer(s).

          (b)   Collective Bargaining Units:  For Plan Years beginning after
                December 31, 1992, the performance of the testing and any
                corrective action resulting therefrom shall be applied
                separately to Employees who are eligible to participate in the
                Plan as a result of a collective bargaining agreement.

          In addition, separate testing may be applied, at the discretion of the
          Administrator and to the extent permitted under Treasury regulations,
          to any group of Employees for whom separate testing is permissible.

                                      34
<PAGE>
 
13   MAXIMUM CONTRIBUTION AND BENEFIT LIMITATIONS
     --------------------------------------------

     13.1 "Annual Addition" Defined

          The sum of all amounts allocated to the Participant's Account for a
          Plan Year.  Amounts include contributions (except for rollovers or
          transfers from another qualified plan), forfeitures and, if the
          Participant is a Key Employee (pursuant to Section 14) for the
          applicable or any prior Plan Year, medical benefits provided pursuant
          to Code section 419A(d)(1).  For purposes of this Section 13.1,
          "Account" also includes a Participant's account in all other defined
          contribution plans currently or previously maintained by any Related
          Company.  The Plan Year refers to the year to which the allocation
          pertains, regardless of when it was allocated.  The Plan Year shall be
          the Code section 415 limitation year.

     13.2 Maximum Annual Addition

          The Annual Addition to a Participant's accounts under this Plan and
          any other defined contribution plan maintained by any Related Company
          for any Plan Year shall not exceed the lesser of (1) 25% of his or her
          Taxable Income or (2) the greater of $30,000 or one-quarter of the
          dollar limitation in effect under Code section 415(b)(1)(A).

     13.3 Avoiding an Excess Annual Addition

          If, at any time during a Plan Year, the allocation of any additional
          Contributions would produce an excess Annual Addition for such year,
          Contributions to be made for the remainder of the Plan Year shall be
          limited to the amount needed for each affected Participant to receive
          the maximum Annual Addition.

     13.4 Correcting an Excess Annual Addition

          Upon the discovery of an excess Annual Addition to a Participant's
          Account (resulting from forfeitures, allocations, reasonable error in
          determining Participant compensation or the amount of elective
          contributions, or other facts and circumstances acceptable to the
          Internal Revenue Service) the excess amount (adjusted to reflect
          investment gains) shall first be returned to the Participant to the
          extent of his or her Pre-Tax Contributions (however to the extent Pre-
          Tax Contributions were matched, the applicable Matching Contributions
          shall be forfeited in proportion to the returned matched Pre-Tax
          Contributions) and the remaining excess, if any, plus returned
          Matching Contributions, shall be forfeited by the Participant and used
          to reduce subsequent Contributions as soon as is administratively
          feasible.

                                      35
<PAGE>
 
     13.5 Correcting a Multiple Plan Excess

          If a Participant, whose Account is credited with an excess Annual
          Addition, received allocations to more than one defined contribution
          plan, the excess shall be corrected by reducing the Annual Addition to
          this Plan only after all possible reductions have been made to the
          other defined contribution plans.

     13.6 "Defined Benefit Fraction" Defined

          The fraction, for any Plan Year, where the numerator is the "projected
          annual benefit" and the denominator is the greater of 125% of the
          "protected current accrued benefit" or the normal limit which is the
          lesser of (1) 125% of the maximum dollar limitation provided under
          Code section 415(b)(1)(A) for the Plan Year or (2) 140% of the amount
          which may be taken into account under Code section 415(b)(1)(B) for
          the Plan Year, where a Participant's:

          (a)   "projected annual benefit" is the annual benefit provided by the
                Plan determined pursuant to Code section 415(e)(2)(A), and

          (b)   "protected current accrued benefit" in a defined benefit plan in
                existence (1) on July 1, 1982, shall be the accrued annual
                benefit provided for under Public Law 97-248, section 235(g)(4),
                as amended, or (2) on May 6, 1986, shall be the accrued annual
                benefit provided for under Public Law 99-514, section
                1106(i)(3).

     13.7 "Defined Contribution Fraction" Defined

          The fraction where the numerator is the sum of the Participant's
          Annual Addition for each Plan Year to date and the denominator is the
          sum of the "annual amounts" for each year in which the Participant has
          performed service with a Related Company.  The "annual amount" for any
          Plan Year is the lesser of (1) 125% of the Code section 415(c)(1)(A)
          dollar limitation (determined without regard to subsection (c)(6)) in
          effect for the Plan Year and (2) 140% of the Code section 415(c)(1)(B)
          amount in effect for the Plan Year, where:

          (a)   each Annual Addition is determined pursuant to the Code section
                415(c) rules in effect for such Plan Year, and

          (b)   the numerator is adjusted pursuant to Public Law 97-248, section
                235(g)(3), as amended, or Public Law 99-514, section 1106(i)(4).

     13.8 Combined Plan Limits and Correction

          If a Participant has also participated in a defined benefit plan
          maintained by a Related Company, the sum of the Defined Benefit
          Fraction and the Defined Contribution Fraction for any Plan Year may
          not exceed 1.0. If the combined fraction exceeds 1.0 for any Plan
          Year, the Participant's benefit under any defined benefit plan (to the
          extent it has not been distributed or used to purchase an annuity
          contract) shall be limited so that the combined fraction does not
          exceed 1.0 before any defined contribution limits will be enforced.

                                      36
<PAGE>
 
14   TOP HEAVY RULES
     ---------------

     14.1 Top Heavy Definitions

          When capitalized, the following words and phrases have the following
          meanings when used in this Section:

          (a)   "Aggregation Group".  The group consisting of each qualified
                plan of an Employer (and its Related Companies) (1) in which a
                Key Employee is a participant or was a participant during the
                determination period (regardless of whether such plan has
                terminated), or (2) which enables another plan in the group to
                meet the requirements of Code sections 401(a)(4) and 410(b).
                The Employer may also treat any other qualified plan as part of
                the group if the group would continue to meet the requirements
                of Code sections 401(a)(4) and 410(b) with such plan being taken
                into account.

          (b)   "Determination Date".  The last Trade Date of the preceding Plan
                Year or, in the case of the Plan's first year, the last Trade
                Date of the first Plan Year.

          (c)   "Key Employee".  A current or former Employee (or his or her
                Beneficiary) who at any time during the five year period ending
                on the Determination Date was:

                (1)  an officer of a Related Company whose Compensation (i)
                     exceeds 50% of the amount in effect under Code section
                     415(b)(1)(A) and (ii) places him within the following
                     highest paid group of officers:

<TABLE>
<CAPTION>
                        Number of Employees               Number of        
                      not Excluded Under Code           Highest Paid       
                         Section 414(q)(8)            Officers Included    
                         -----------------            -----------------    
                     <S>                              <C>                  
                           Less than 30                       3            
                            30 to 500                10% of the number of  
                                                    Employees not excluded 
                                                      under Code section   
                                                           414(q)(8)       
                           More than 500                      50            
</TABLE>

                (2)  a more than 5% Owner,

                (3)  a more than 1% Owner whose Compensation exceeds $150,000,
                     or

                                      37
<PAGE>
 
                (4)  a more than 0.5% Owner who is among the 10 Employees owning
                     the largest interest in a Related Company and whose
                     Compensation exceeds the amount in effect under Code
                     section 415(c)(1)(A).

          (d)   "Plan Benefit".  The sum as of the Determination Date of (1) an
                Employee's Account, (2) the present value of his or her other
                accrued benefits provided by all qualified plans within the
                Aggregation Group, and (3) the aggregate distributions made
                within the five year period ending on such date.  Plan Benefits
                shall exclude rollover contributions and plan to plan transfers
                made after December 31, 1983 which are both employee initiated
                and from a plan maintained by a non-related employer.

          (e)   "Top Heavy".  The Plan's status when the Plan Benefits of Key
                Employees account for more than 60% of the Plan Benefits of all
                Employees who have performed services at any time during the
                five year period ending on the Determination Date.  The Plan
                Benefits of Employees who were, but are no longer, Key Employees
                (because they have not been an officer or Owner during the five
                year period), are excluded in the determination.

     14.2 Special Contributions

          (a)   Minimum Contribution Requirement.  For each Plan Year in which
                the Plan is Top Heavy, the Employer shall not allow any
                contributions (other than a Rollover Contribution) to be made by
                or on behalf of any Key Employee unless the Employer makes a
                contribution (other than Pre-Tax and Matching Contributions) on
                behalf of all Participants who were Eligible Employees as of the
                last day of the Plan Year in an amount equal to at least 3% of
                each such Participant's Taxable Income.  The Administrator shall
                remove any such contributions (including applicable investment
                gain or loss) credited to a Key Employee's Account in violation
                of the foregoing rule and return them to the Employer or
                Employee to the extent permitted by the Limited Return of
                Contributions paragraph of Section 18.

          (b)   Overriding Minimum Benefit. Notwithstanding, contributions shall
                be permitted on behalf of Key Employees if the Employer also
                maintains a defined benefit plan which automatically provides a
                benefit which satisfies the Code section 416(c)(1) minimum
                benefit requirements, including the adjustment provided in Code
                section 416(h)(2)(A), if applicable. If this Plan is part of an
                aggregation group in which a Key Employee is receiving a benefit
                and no minimum is provided in any other plan, a minimum
                contribution of at least 3% of Taxable Income shall be provided
                to the Employees specified in the preceding paragraph of this
                plan. In addition, the Employer may offset a defined benefit
                minimum by contributions (other than Pre-Tax and Matching
                Contributions) made to this Plan.

                                      38
<PAGE>
 
     14.3 Adjustment to Combined Limits for Different Plans

          For each Plan Year in which the Plan is Top Heavy, 100% shall be
          substituted for 125% in determining the Defined Benefit Fraction and
          the Defined Contribution Fraction.

                                      39
<PAGE>
 
15   PLAN ADMINISTRATION
     -------------------

     15.1 Plan Delineates Authority and Responsibility

          Plan fiduciaries include the Company, the Administrator, the Committee
          and/or the Trustee, as applicable, whose specific duties are
          delineated in this Plan and Trust.  In addition, Plan fiduciaries also
          include any other person to whom fiduciary duties or responsibility is
          delegated with respect to the Plan.  Any person or group may serve in
          more than one fiduciary capacity with respect to the Plan.  To the
          extent permitted under ERISA section 405, no fiduciary shall be liable
          for a breach by another fiduciary.

     15.2 Fiduciary Standards

          Each fiduciary shall:

          (a)   discharge his or her duties in accordance with this Plan and
                Trust to the extent they are consistent with ERISA;

          (b)   use that degree of care, skill, prudence and diligence that a
                prudent person acting in a like capacity and familiar with such
                matters would use in the conduct of an enterprise of a like
                character and with like aims;

          (c)   act with the exclusive purpose of providing benefits to
                Participants and their Beneficiaries, and defraying reasonable
                expenses of administering the Plan;

          (d)   diversify Plan investments, to the extent such fiduciary is
                responsible for directing the investment of Plan assets, so as
                to minimize the risk of large losses, unless under the
                circumstances it is clearly prudent not to do so; and

          (e)   treat similarly situated Participants and Beneficiaries in a
                uniform and nondiscriminatory manner.

     15.3 Company is ERISA Plan Administrator

          The Company is the plan administrator, within the meaning of ERISA
          section 3(16), which is responsible for compliance with all reporting
          and disclosure requirements, except those that are explicitly the
          responsibility of the Trustee under applicable law. The Administrator
          and/or Committee shall have any necessary authority to carry out such
          functions through the actions of the Administrator, duly appointed
          officers of the Company, and/or the Committee.

                                      40
<PAGE>
 
     15.4 Administrator Duties

          The Administrator shall have the discretionary authority to construe
          this Plan and Trust, other than the provisions which relate to the
          Trustee, and to do all things necessary or convenient to effect the
          intent and purposes of the Plan, whether or not such powers are
          specifically set forth in this Plan and Trust.  Actions taken in good
          faith by the Administrator shall be conclusive and binding on all
          interested parties, and shall be given the maximum possible deference
          allowed by law.  In addition to the duties listed elsewhere in this
          Plan and Trust, the Administrator's authority shall include, but not
          be limited to, the discretionary authority to:

          (a)   determine who is eligible to participate, if a contribution
                qualifies as a rollover contribution, the allocation of
                Contributions, and the eligibility for loans, withdrawals and
                distributions;
 
          (b)   provide each Participant with a summary plan description no
                later than 90 days after he or she has become a Participant (or
                such other period permitted under ERISA section 104(b)(1)), as
                well as informing each Participant of any material modification
                to the Plan in a timely manner;

          (c)   make a copy of the following documents available to Participants
                during normal work hours: this Plan and Trust (including
                subsequent amendments), all annual and interim reports of the
                Trustee related to the entire Plan, the latest annual report and
                the summary plan description;

          (d)   determine the fact of a Participant's death and of any
                Beneficiary's right to receive the deceased Participant's
                interest based upon such proof and evidence as it deems
                necessary;

          (e)   establish and review at least annually a funding policy bearing
                in mind both the short-run and long-run needs and goals of the
                Plan.  To the extent Participants may direct their own
                investments, the funding policy shall focus on which Investment
                Funds are available for Participants to use; and

          (f)   adjudicate claims pursuant to the claims procedure described in
                Section 18.

     15.5 Advisors May be Retained

          The Administrator may retain such agents and advisors (including
          attorneys, accountants, actuaries, consultants, record keepers,
          investment counsel and administrative assistants) as it considers
          necessary to assist it in the performance of its duties. The
          Administrator shall also comply with the bonding requirements of ERISA
          section 412.

                                      41
<PAGE>
 
     15.6 Delegation of Administrator Duties

          The Company, as Administrator of the Plan, has appointed a Committee
          to administer the Plan on its behalf.  The Company shall provide the
          Trustee with the names and specimen signatures of any persons
          authorized to serve as Committee members and act as or on its behalf.
          Any Committee member appointed by the Company shall serve at the
          pleasure of the Company, but may resign by written notice to the
          Company.  Committee members shall serve without compensation from the
          Plan for such services.  Except to the extent that the Company
          otherwise provides, any delegation of duties to a Committee shall
          carry with it the full discretionary authority of the Administrator to
          complete such duties.

     15.7 Committee Operating Rules

          (a)   Actions of Majority.  Any act delegated by the Company to the
                Committee may be done by a majority of its members.  The
                majority may be expressed by a vote at a meeting or in writing
                without a meeting, and a majority action shall be equivalent to
                an action of all Committee members.

          (b)   Meetings.  The Committee shall hold meetings upon such notice,
                place and times as it determines necessary to conduct its
                functions properly.

          (c)   Reliance by Trustee.  The Committee may authorize one or more of
                its members to execute documents on its behalf and may authorize
                one or more of its members or other individuals who are not
                members to give written direction to the Trustee in the
                performance of its duties.  The Committee shall provide such
                authorization in writing to the Trustee with the name and
                specimen signatures of any person authorized to act on its
                behalf.  The Trustee shall accept such direction and rely upon
                it until notified in writing that the Committee has revoked the
                authorization to give such direction.  The Trustee shall not be
                deemed to be on notice of any change in the membership of the
                Committee, parties authorized to direct the Trustee in the
                performance of its duties, or the duties delegated to and by the
                Committee until notified in writing.

                                      42
<PAGE>
 
16   MANAGEMENT OF INVESTMENTS
     -------------------------

     16.1 Trust Agreement

          All Plan assets shall be held by the Trustee in trust, in accordance
          with those provisions of this Plan and Trust which relate to the
          Trustee, for use in providing Plan benefits and paying Plan expenses
          not paid directly by the Employer.  Plan benefits will be drawn solely
          from the Trust and paid by the Trustee as directed by the
          Administrator. Notwithstanding, the Administrator may appoint, with
          the approval of the Trustee, another trustee to hold and administer
          Plan assets which do not meet the requirements of Section 16.2.

     16.2 Investment Funds

          The Administrator is hereby granted authority to direct the Trustee to
          invest Trust assets in one or more Investment Funds.  The number and
          composition of Investment Funds may be changed from time to time,
          without the necessity of amending this Plan and Trust document.  The
          Trustee may establish reasonable limits on the number of Investment
          Funds as well as the acceptable assets for any such Investment Fund.
          Each of the Investment Funds may be comprised of any of the following:

          (a)   shares of a registered investment company, whether or not the
                Trustee or any of its affiliates is an advisor to, or other
                service provider to, such company;

          (b)   collective investment funds maintained by the Trustee, or any
                other fiduciary to the Plan, which are available for investment
                by trusts which are qualified under Code sections 401(a) and
                501(a);

          (c)   individual equity and fixed income securities which are readily
                tradeable on the open market;

          (d)   guaranteed investment contracts issued by a bank or insurance
                company; and

          (e)   interest bearing deposits of the Trustee.

          Any Investment Fund assets invested in a collective investment fund,
          shall be subject to all the provisions of the instruments establishing
          and governing such fund.  These instruments, including any subsequent
          amendments, are incorporated herein by reference.

     16.3 Authority to Hold Cash

          The Trustee shall have the authority to cause the investment manager
          of each Investment Fund to maintain sufficient deposit or money market
          type assets

                                      43
<PAGE>
 
          in each Investment Fund to handle the Fund's liquidity and
          disbursement needs.  Each Participant's and Beneficiary's Sweep
          Account, which is used to hold assets pending investment or
          disbursement, shall consist of interest bearing deposits of the
          Trustee.

     16.4 Trustee to Act Upon Instructions

          The Trustee shall carry out instructions to invest assets in the
          Investment Funds as soon as practicable after such instructions are
          received from the Administrator, Participants, or Beneficiaries.  Such
          instructions shall remain in effect until changed by the
          Administrator, Participants or Beneficiaries.

     16.5 Administrator Has Right to Vote Registered Investment Company Shares

          The Administrator shall be entitled to vote proxies or exercise any
          shareholder rights relating to shares held on behalf of the Plan in a
          registered investment company.  Notwithstanding, the authority to vote
          proxies and exercise shareholder rights related to such shares held in
          a Custom Fund is vested as provided otherwise in Section 16.

     16.6 Custom Fund Investment Management

          The Administrator may designate, with the consent of the Trustee, an
          investment manager for any Investment Fund established by the Trustee
          solely for Participants of this Plan (a "Custom Fund").  The
          investment manager may be the Administrator, Trustee or an investment
          manager pursuant to ERISA section 3(38).  The Administrator shall
          advise the Trustee in writing of the appointment of an investment
          manager and shall cause the investment manager to acknowledge to the
          Trustee in writing that the investment manager is a fiduciary to the
          Plan.

          A Custom Fund shall be subject to the following:

          (a)   Guidelines.  Written guidelines, acceptable to the Trustee,
                shall be established for a Custom Fund.  If a Custom Fund
                consists solely of collective investment funds or shares of a
                registered investment company (and sufficient deposit or money
                market type assets to handle the Fund's liquidity and
                disbursement needs), its' underlying instruments shall
                constitute the guidelines.

          (b)   Authority of Investment Manager.  The investment manager of a
                Custom Fund shall have the authority to vote or execute proxies,
                exercise shareholder rights, manage, acquire, and dispose of
                Trust assets.

          (c)   Custody and Trade Settlement.  Unless otherwise expressly agreed
                to by the Trustee, the Trustee shall maintain custody of all
                Custom Fund

                                      44
<PAGE>
 
                assets and be responsible for the settlement of all Custom Fund
                trades.  For purposes of this section, shares of a collective
                investment fund, shares of a registered investment company and
                guaranteed investment contracts issued by a bank or insurance
                company, shall be regarded as the Custom Fund assets instead of
                the underlying assets of such instruments.

          (d)   Limited Liability of Co-Fiduciaries.  Neither the Administrator
                nor the Trustee shall be obligated to invest or otherwise manage
                any Custom Fund assets for which the Trustee or Administrator is
                not the investment manager nor shall the Administrator or
                Trustee be liable for acts or omissions with regard to the
                investment of such assets except to the extent required by
                ERISA.

     16.7  Authority to Segregate Assets

           The Company may direct the Trustee to split an Investment Fund into
           two or more funds in the event any assets in the Fund are illiquid or
           the value is not readily determinable. In the event of such
           segregation, the Company shall give instructions to the Trustee on
           what value to use for the split-off assets, and the Trustee shall not
           be responsible for confirming such value.

                                      45
<PAGE>
 
17   TRUST ADMINISTRATION
     --------------------

     17.1 Trustee to Construe Trust

          The Trustee shall have the discretionary authority to construe those
          provisions of this Plan and Trust which relate to the Trustee and to
          do all things necessary or convenient to the administration of the
          Trust, whether or not such powers are specifically set forth in this
          Plan and Trust.  Actions taken in good faith by the Trustee shall be
          conclusive and binding on all interested parties, and shall be given
          the maximum possible deference allowed by law.

     17.2 Trustee To Act As Owner of Trust Assets

          Subject to the specific conditions and limitations set forth in this
          Plan and Trust, the Trustee shall have all the power, authority,
          rights and privileges of an absolute owner of the Trust assets and,
          not in limitation but in amplification of the foregoing, may:

          (a)   receive, hold, manage, invest and reinvest, sell, tender,
                exchange, dispose of, encumber, hypothecate, pledge, mortgage,
                lease, grant options respecting, repair, alter, insure, or
                distribute any and all property in the Trust;

          (b)   borrow money, participate in reorganizations, pay calls and
                assessments, vote or execute proxies, exercise subscription or
                conversion privileges, exercise options and register any
                securities in the Trust in the name of the nominee, in federal
                book entry form or in any other form as will permit title
                thereto to pass by delivery;

          (c)   renew, extend the due date, compromise, arbitrate, adjust,
                settle, enforce or foreclose, by judicial proceedings or
                otherwise, or defend against the same, any obligations or claims
                in favor of or against the Trust; and

          (d)   lend, through a collective investment fund, any securities held
                in such collective investment fund to brokers, dealers or other
                borrowers and to permit such securities to be transferred into
                the name and custody and be voted by the borrower or others.

     17.3 United States Indicia of Ownership

          The Trustee shall not maintain the indicia of ownership of any Trust
          assets outside the jurisdiction of the United States, except as
          authorized by ERISA section 404(b).

                                      46
<PAGE>
 
     17.4 Tax Withholding and Payment

          (a)   Withholding.  Effective for taxable distributions made on or
                before December 31, 1992 the Trustee shall calculate and
                withhold federal (and, if applicable, state) income taxes in
                accordance with a Participant's withholding election.  Effective
                for taxable distributions made after December 31, 1992, the
                Trustee shall calculate and withhold federal (and, if
                applicable, state) income taxes with regard to any Eligible
                Rollover Distribution that is not paid as a Direct Rollover.
                With regard to any taxable distribution that is not an Eligible
                Rollover Distribution, the Trustee shall calculate and withhold
                federal (and, if applicable, state) income taxes in accordance
                with the Participant's withholding election.

          (b)   Taxes Due From Investment Funds.  The Trustee shall pay from the
                Investment Fund any taxes or assessments imposed by any taxing
                or governmental authority on such Fund or its income, including
                related interest and penalties.

     17.5 Trustee Duties and Limitations

          Unless otherwise agreed to by the Trustee, the Trustee's duties shall
          be confined to construing the terms of the Plan and Trust as they
          relate to the Trustee, receiving funds on behalf of and making
          payments from the Trust, safeguarding and valuing Trust assets, and
          investing and reinvesting Trust assets in the Investment Funds as
          directed by the Administrator or Participants.  The Trustee shall have
          no duty or authority to ascertain whether Contributions are in
          compliance with the Plan, to enforce collection or to compute or
          verify the accuracy or adequacy or any amount to be paid to it by the
          Employer.  The Trustee shall not be liable for the proper application
          of any part of the Trust with respect to any disbursement made at the
          direction of the Administrator.

     17.6 Trust Accounting

          (a)   Annual Report.  Within 60 days (or other reasonable period)
                following the close of the Plan Year, the Trustee shall provide
                the Administrator with an annual accounting of Trust assets and
                information to assist the Administrator in meeting ERISA's
                annual reporting and audit requirements.

          (b)   Periodic Reports.  The Trustee shall maintain records and
                provide sufficient reporting to allow the Administrator to
                properly monitor the Trust's assets and activity.

          (c)   Administrator Approval.  Approval of any Trustee accounting will
                automatically occur 90 days after such accounting has been
                received by the Administrator, unless the Administrator files a
                written objection

                                      47
<PAGE>
 
                with the Trustee within such time period.  Such approval shall
                be final as to all matters and transactions stated or shown
                therein and binding upon the Administrator.

     17.7 Valuation of Certain Assets

          If the Trustee determines the Trust holds any asset which is not
          readily tradable and listed on a national securities exchange
          registered under the Securities Exchange Act of 1934, as amended, the
          Trustee may engage a qualified independent appraiser to determine the
          fair market value of such property, and the appraisal fees shall be
          paid from the Investment Fund containing the asset.

     17.8 Legal Counsel

          The Trustee may consult with legal counsel of its choice, including
          counsel for the Employer or counsel of the Trustee, upon any question
          or matter arising under this Plan and Trust.  When relied upon by the
          Trustee, the opinion of such counsel shall be evidence that the
          Trustee has acted in good faith.

     17.9 Fees and Expenses

          The Trustee's fees for its services as Trustee shall be such as may be
          mutually agreed upon by the Company and the Trustee. Trustee fees and
          all reasonable expenses of counsel and advisors retained by the
          Trustee shall be paid in accordance with Section 6.

                                      48
<PAGE>
 
18   RIGHTS, PROTECTION, CONSTRUCTION AND JURISDICTION
     -------------------------------------------------

     18.1 Plan Does Not Affect Employment Rights

          The Plan does not provide any employment rights to any Employee.  The
          Employer expressly reserves the right to discharge an Employee at any
          time, with or without cause, without regard to the effect such
          discharge would have upon the Employee's interest in the Plan.

     18.2 Limited Return of Contributions

          Except as provided in this paragraph, (1) Plan assets shall not revert
          to the Employer nor be diverted for any purpose other than the
          exclusive benefit of Participants or their Beneficiaries; and (2) a
          Participant's vested interest shall not be subject to divestment.  As
          provided in ERISA section 403(c)(2), the actual amount of a
          Contribution made by the Employer (or the current value of the
          Contribution if a net loss has occurred) may revert to the Employer
          if:

          (a)   such Contribution is made by reason of a mistake of fact;

          (b)   initial qualification of the Plan under Code section 401(a) is
                not received and a request for such qualification is made within
                the time prescribed under Code section 401(b) (the existence of
                and Contributions under the Plan are hereby conditioned upon
                such qualification); or

          (c)   such Contribution is not deductible under Code section 404 (such
                Contributions are hereby conditioned upon such deductibility) in
                the taxable year of the Employer for which the Contribution is
                made.

          The reversion to the Employer must be made (if at all) within one year
          of the mistaken payment of the Contribution, the date of denial of
          qualification, or the date of disallowance of deduction, as the case
          may be.  A Participant shall have no rights under the Plan with
          respect to any such reversion.

     18.3 Assignment and Alienation

          As provided by Code section 401(a)(13) and to the extent not otherwise
          required by law, no benefit provided by the Plan may be anticipated,
          assigned or alienated, except:

          (a)   to create, assign or recognize a right to any benefit with
                respect to a Participant pursuant to a QDRO, or

          (b)   to use a Participant's vested Account balance as security for a
                loan from the Plan which is permitted pursuant to Code section
                4975.

                                      49
<PAGE>
 
     18.4 Facility of Payment

          If a Plan benefit is due to be paid to a minor or if the Administrator
          reasonably believes that any payee is legally incapable of giving a
          valid receipt and discharge for any payment due him or her, the
          Administrator shall have the payment of the benefit, or any part
          thereof, made to the person (or persons or institution) whom it
          reasonably believes is caring for or supporting the payee, unless it
          has received due notice of claim therefor from a duly appointed
          guardian or conservator of the payee.  Any payment shall to the extent
          thereof, be a complete discharge of any liability under the Plan to
          the payee.

     18.5 Reallocation of Lost Participant's Accounts

          If the Administrator cannot locate a person entitled to payment of a
          Plan benefit after a reasonable search, the Administrator may at any
          time thereafter treat such person's Account as forfeited and use such
          amount to offset any Employer Contributions.  If such person
          subsequently presents the Administrator with a valid claim for the
          benefit, such person shall be paid the amount treated as forfeited,
          plus the interest that would have been earned in the Sweep Account to
          the date of determination.  The Administrator shall pay the amount
          through an additional Employer Contribution.

     18.6 Claims Procedure
 
          (a)   Right to Make Claim.  An interested party who disagrees with the
                Administrator's determination of his or her right to Plan
                benefits must submit a written claim and exhaust this claim
                procedure before legal recourse of any type is sought.  The
                claim must include the important issues the interested party
                believes support the claim.  The Administrator, pursuant to the
                authority provided in this Plan, shall either approve or deny
                the claim.

          (b)   Process for Denying a Claim.  The Administrator's partial or
                complete denial of an initial claim must include an
                understandable, written response covering (1) the specific
                reasons why the claim is being denied (with reference to the
                pertinent Plan provisions) and (2) the steps necessary to
                perfect the claim and obtain a final review.

          (c)   Appeal of Denial and Final Review. The interested party may make
                a written appeal of the Administrator's initial decision, and
                the Administrator shall respond in the same manner and form as
                prescribed for denying a claim initially.

                                      50
<PAGE>
 
          (d)   Time Frame.  The initial claim, its review, appeal and final
                review shall be made in a timely fashion, subject to the
                following time table:

<TABLE> 
<CAPTION> 
                                                            Days to Respond
                Action                                      From Last Action
                ------                                      ----------------
                <S>                                         <C> 
                Administrator determines benefit                          NA
                Interested party files initial request               60 days
                Administrator's initial decision                     90 days
                Interested party requests final review               60 days
                Administrator's final decision                       60 days
</TABLE> 

                However, the Administrator may take up to twice the maximum
                response time for its initial and final review if it provides an
                explanation within the normal period of why an extension is
                needed and when its decision will be forthcoming.

     18.7 Construction

          Headings are included for reading convenience.  The text shall control
          if any ambiguity or inconsistency exists between the headings and the
          text.  The singular and plural shall be interchanged wherever
          appropriate.  References to Participant shall include Beneficiary when
          appropriate and even if not otherwise  already expressly stated.

     18.8 Jurisdiction and Severability

          The Plan and Trust shall be construed, regulated and administered
          under ERISA and other applicable federal laws and, where not otherwise
          preempted, by the laws of the State of California.  If any provision
          of this Plan and Trust shall become invalid or unenforceable, that
          fact shall not affect the validity or enforceability of any other
          provision of this Plan and Trust.  All provisions of this Plan and
          Trust shall be so construed as to render them valid and enforceable in
          accordance with their intent.

     18.9 Indemnification by Employer

          The Employers hereby agree to indemnify all Plan fiduciaries against
          any and all liabilities resulting from any action or inaction,
          (including a Plan termination in which the Company fails to apply for
          a favorable determination from the Internal Revenue Service with
          respect to the qualification of the Plan upon its termination), in
          relation to the Plan or Trust (1) including (without limitation)
          expenses reasonably incurred in the defense of any claim relating to
          the Plan or its assets, and amounts paid in any settlement relating to
          the Plan or its assets, but (2) excluding liability resulting from
          actions or inactions made in bad faith, or resulting from the
          negligence or willful misconduct of the Trustee. The Company shall
          have the right, but not the obligation, to conduct the defense of any
          action to which this Section applies. The Plan fiduciaries are not
          entitled to indemnity from the Plan assets relating to any such
          action.

                                      51
<PAGE>
 
19   AMENDMENT, MERGER AND TERMINATION
     ---------------------------------

     19.1 Amendment

          The Company reserves the right to amend this Plan and Trust at any
          time, to any extent and in any manner it may deem necessary or
          appropriate.  The Company (and not the Trustee) shall be responsible
          for adopting any amendments necessary to maintain the qualified status
          of this Plan and Trust under Code sections 401(a) and 501(a).  The
          Administrator shall have the authority to adopt Plan and Trust
          amendments which have no substantial adverse financial impact upon an
          Employer or the Plan.  All interested parties shall be bound by any
          amendment, provided that no amendment shall:

          (a)   become effective until it is accepted in writing by the Trustee
                (which acceptance shall not unreasonably be withheld);

          (b)   except to the extent permissible under ERISA and the Code, make
                it possible for any portion of the Trust assets to revert to an
                Employer or to be used for, or diverted to, any purpose other
                than for the exclusive benefit of Participants and Beneficiaries
                entitled to Plan benefits and to defray reasonable expenses of
                administering the Plan;

          (c)   decrease the rights of any Employee to benefits accrued
                (including the elimination of optional forms of benefits) to the
                date on which the amendment is adopted, or if later, the date
                upon which the amendment becomes effective, except to the extent
                permitted under ERISA and the Code; nor

          (d)   permit an Employee to be paid the balance of his or her Pre-Tax
                Account unless the payment would otherwise be permitted under
                Code section 401(k).

     19.2 Merger

          This Plan and Trust may not be merged or consolidated with, nor may
          its assets or liabilities be transferred to, another plan unless each
          Participant and Beneficiary would, if the resulting plan were then
          terminated, receive a benefit just after the merger, consolidation or
          transfer which is at least equal to the benefit which would be
          received if either plan had terminated just before such event.

     19.3 Plan Termination

          The Company may, at any time and for any reason, terminate the Plan,
          or completely discontinue contributions.  Upon either of these events,
          or in the event of a partial termination of the Plan within the
          meaning of Code section 411(d)(3), the Accounts of each affected
          Employee shall be fully vested.

                                      52
<PAGE>
 
          Complete distributions or withdrawals will be made in accordance with
          the terms of the Plan as in effect at the time of the Plan's
          termination or as thereafter amended provided that a post-termination
          amendment will not be effective to the extent that it violates Section
          19.1 unless it is required in order to maintain the qualified status
          of the Plan upon its termination. The Trustee's and Employer's
          authority shall continue beyond the Plan's termination date until all
          Trust assets have been liquidated and distributed.

     19.4 Termination of Employer's Participation

          Any Employer may terminate its Plan participation upon written notice
          executed by the Employer and delivered to the Company.  Upon the
          Employer's request, the Company may instruct the Trustee and
          Administrator to spin off all affected Accounts and underlying assets
          into a separate qualified plan under which the Employer shall assume
          the powers and duties of the Company.  Alternatively, the Company may
          treat the event as a partial termination described above or continue
          to maintain the Accounts under the Plan.

     19.5 Replacement of the Trustee

          The Trustee may resign as Trustee under this Plan and Trust or may be
          removed by the Company at any time upon at least 90 days written
          notice (or less if agreed to by both parties).  In such event, the
          Company shall appoint a successor trustee by the end of the notice
          period.  The successor trustee shall then succeed to all the powers
          and duties of the Trustee under this Plan and Trust.  If no successor
          trustee has been named by the end of the notice period, the Company's
          chief executive officer shall become the trustee, or if he or she
          declines, the Trustee may petition the court for the appointment of a
          successor trustee.

     19.6 Final Settlement and Accounting of Trustee

          (a)   Final Settlement.  As soon as is administratively feasible after
                its resignation or removal as Trustee, the Trustee shall
                transfer to the successor trustee all property currently held by
                the Trust.  However, the Trustee is authorized to reserve such
                sum of money as it may deem advisable for payment of its
                accounts and expenses in connection with the settlement of its
                accounts or other fees or expenses payable by the Trust.  Any
                balance remaining after payment of such fees and expenses shall
                be paid to the successor trustee.

          (b)   Final Accounting.  The Trustee shall provide a final accounting
                to the Administrator within 90 days of the date Trust assets are
                transferred to the successor trustee.

                                      53
<PAGE>
 
          (c)   Administrator Approval.  Approval of the final accounting will
                automatically occur 90 days after such accounting has been
                received by the Administrator, unless the Administrator files a
                written objection with the Trustee within such time period.
                Such approval shall be final as to all matters and transactions
                stated or shown therein and binding upon the Administrator.

                                      54
<PAGE>
 
                         APPENDIX A - INVESTMENT FUNDS


I.   Investment Funds Available

     The Investment Funds offered to Participants and Beneficiaries as of the
     Execution Date include this set of daily valued funds:


                      Category          Funds
                      --------          -----

                      Money Market      Money Market
                      ------------                  

                      Fixed Income      Income Accumulation
                      ------------      Short-Intermediate Term
                                        U.S. Treasury Allocation

                      Balanced          Asset Allocation
                      --------                          

                      Equity            Growth Stock
                      ------            SEI International Equity
                                        S&P 500 Stock
                                        S&P MidCap Stock

II.  Default Investment Fund

     The default Investment Fund as of the Execution Date is the Money Market
     Fund.


III. Maximum Percentage Restrictions Applicable to Certain Investment Funds

     As of the Effective Date, there are no maximum percentage restrictions
     applicable to any Investment Funds.

                                      55
<PAGE>
 
                 APPENDIX B - PAYMENT OF PLAN FEES AND EXPENSES


As of the Effective Date, payment of Plan fees and expenses shall be as follows:

1)   Investment Management Fees:  These are paid by Participants in that
     management fees reduce the investment return reported and credited to
     Participants.

2)   Recordkeeping Fees: These are paid by Participants and are assessed monthly
     and billed/collected from Accounts quarterly.

3)   Loan Fees:  A $3.50 per month fee is assessed and billed/collected
     quarterly from the Account of each Participant who has an outstanding loan
     balance for loans entered into on or after January 1, 1990.

4)   Investment Fund Election Changes:  For each Investment Fund election change
     by a Participant, in excess of 4 changes per year, a $10 fee will be
     assessed and billed/collected quarterly from the Participant's Account.

5)   Recurring Payment Fees: A $3.00 per check fee will be assessed and
     billed/collected quarterly from the Participant's Account.

6)  Additional Fees Paid by Participants:   Trustee, nondiscrimination testing,
     Form 5500 preparation and Participant Account statement handling and
     postage fees shall be added to the recordkeeping fees and assessed against
     Participants' Accounts, per 2) above.  Estimates of the fees shall be
     determined and reconciled, at least annually.

                                      56
<PAGE>
 
                        APPENDIX C - LOAN INTEREST RATE


As of the Effective Date, the interest rate charged on Participant loans shall
be equal to the U.S. Treasury rate for a note of the same maturity, plus 1%.

The rate may be determined once for all loans made in a month, and the maturity
may be determined to the nearest year.


                                      57

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               MAR-31-1995
<CASH>                                          21,742
<SECURITIES>                                     2,709
<RECEIVABLES>                                  291,939
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               347,186
<PP&E>                                         123,111
<DEPRECIATION>                                  64,345
<TOTAL-ASSETS>                                 488,335
<CURRENT-LIABILITIES>                          243,067
<BONDS>                                              0
<COMMON>                                        25,247
                                0
                                          0
<OTHER-SE>                                     193,106
<TOTAL-LIABILITY-AND-EQUITY>                   488,335
<SALES>                                              0
<TOTAL-REVENUES>                               809,102
<CGS>                                                0
<TOTAL-COSTS>                                  719,523
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  32
<INCOME-PRETAX>                                 24,591
<INCOME-TAX>                                     9,739
<INCOME-CONTINUING>                             14,852
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    14,852
<EPS-PRIMARY>                                     0.59
<EPS-DILUTED>                                     0.59
        

</TABLE>


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