Document:

EXHIBIT 4.2

THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT
BEEN  REGISTERED  UNDER THE  SECURITIES  ACT OF 1933,  AS AMENDED,  OR ANY STATE
SECURITIES  LAWS.  SUCH  SECURITIES,  INCLUDING THE SHARES OF COMMON STOCK TO BE
ISSUED UPON EXERCISE,  MAY NOT BE OFFERED, SOLD OR TRANSFERRED IN THE ABSENCE OF
AN EFFECTIVE  REGISTRATION  STATEMENT RELATED THERETO OR AN EXEMPTION  THEREFROM
UNDER SAID ACT, AND ANY  APPLICABLE  STATE  SECURITIES  LAWS,  AND AN OPINION OF
COUNSEL  FOR THE  HOLDER,  REASONABLY  SATISFACTORY  TO THE  COMPANY,  THAT SUCH
REGISTRATION  IS NOT REQUIRED UNDER THE SECURITIES ACT OR RECEIPT OF A NO-ACTION
LETTER FROM THE  SECURITIES  AND EXCHANGE  COMMISSION.  COPIES OF THE  AGREEMENT
COVERING THE PURCHASE OF THESE SECURITIES AND RESTRICTING  THEIR TRANSFER MAY BE
OBTAINED  AT NO COST BY  WRITTEN  REQUEST  MADE BY THE HOLDER OF RECORD OF THESE
SECURITIES  TO THE  SECRETARY  OF THE  CORPORATION  AT THE  PRINCIPAL  EXECUTIVE
OFFICES OF THE CORPORATION.

Date of Issuance: January 14, 2002

                               WARRANT TO PURCHASE
                      __________ SHARES OF COMMON STOCK OF
                           TRIMBLE NAVIGATION LIMITED

No. W2001-___

     FOR  VALUE  RECEIVED,  the  receipt  and  sufficiency  of which  is  hereby
acknowledged,  this  warrant has been issued by Trimble  Navigation  Limited,  a
California  corporation  (the  "Company") to  ______________  (the  "Purchaser")
pursuant to the terms and  conditions of that certain First Amended and Restated
Stock and Warrant Purchase  Agreement dated as of the date hereof (the "Purchase
Agreement").  This warrant  certifies that Purchaser and its nominees or assigns
hereunder  (the  "Holder")  is  entitled  to  purchase  from the  Company  up to
______________  (________) fully paid and nonassessable  shares of the Company's
common stock ("Common Stock"), at a price of $19.475 per share (which is 125% of
the "Fair Market Value" of a share of Common  Stock,  as defined in the Purchase
Agreement,  hereinafter the "Exercise Price"),  at any time or from time to time
up to and  including  5:00 p.m.  (California  time) on the  Expiration  Date (as
hereinafter  defined),  upon surrender to the Company at its principal office at
645 North Mary Avenue, Sunnyvale, California 94088 (or at such other location as
the Company may advise the Holder in writing) of this Warrant properly  endorsed
with the Form of  Subscription  attached  as Exhibit A hereto duly filled in and
signed  and upon  payment,  in any  manner set forth  herein,  of the  aggregate
Exercise  Price for the  number  of  shares  for  which  this  Warrant  is being
exercised  determined in accordance  with the

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provisions  hereof.  The  Exercise  Price and the  number of shares  purchasable
hereunder are subject to additional  adjustments  and limitations as provided in
Section 4 of this Warrant.

         This Warrant is subject to the following terms and conditions:

1.   Exercise.

     1.1  Issuance  of  Certificates;   Payment  for  Shares.  This  Warrant  is
exercisable  only by the  Holder of record  hereof,  at any time or from time to
time, in whole or in part, until 5:00 p.m., California time, on January 14, 2007
(the  "Expiration  Date").  The Company  agrees that the shares of Common  Stock
purchased  under this Warrant  shall be deemed to be issued to the Holder hereof
as the record  owner of such  shares as of the close of  business on the date on
which  this  Warrant  shall  have  been  properly   surrendered   for  exercise.
Certificates  for the shares of Common  Stock so  purchased,  together  with any
other  securities  or property to which the Holder  hereof is entitled upon such
exercise,  shall be  delivered,  free of any  legends  except as provided in the
Purchase Agreement, to the Holder hereof by the Company at the Company's expense
as soon as practicable  but, in any event,  within three (3) trading days, after
the rights  represented  by this Warrant have been so exercised.  In case of the
purchase of less than all the shares which may be purchased  under this Warrant,
the Company shall cancel this Warrant upon its surrender and execute and deliver
a new  Warrant  or  Warrants  of  like  tenor  for  the  balance  of the  shares
purchasable  under the  Warrant  surrendered  upon such  purchase  to the Holder
hereof as soon as practicable  but within said three (3) day period.  Each stock
certificate so delivered shall be in such  denominations  of Common Stock as may
be requested by the Holder  hereof and shall be  registered  in the name of such
Holder or such other name as shall be designated by such Holder,  subject to the
limitations contained in Section 10.

     1.2 Buy-In. In addition to any other rights available to the Holder, if the
Company  fails  to  deliver  to  the  Holder  a  certificate   or   certificates
representing  the shares of Common Stock  issuable  upon exercise of the Warrant
(the "Warrant Stock") pursuant to an exercise by the third trading day after the
date of exercise,  and if after such third trading day the Holder  purchases (in
an open market  transaction  or otherwise)  shares of Common Stock to deliver in
satisfaction  of a sale by the  Holder of the  Warrant  Stock  which the  Holder
anticipated  receiving  upon such exercise (a "Buy-In"),  then the Company shall
(i) pay in cash to the  Holder  the  amount  by  which  (x) the  Holder's  total
purchase  price  (including  brokerage  commissions,  if any) for the  shares of
Common Stock so purchased exceeds (y) the amount obtained by multiplying (A) the
number of Warrant  Stock that the Company was  required to deliver to the Holder
in  connection  with the  exercise  at issue by (B) the closing bid price of the
Common  Stock  at the  time of the  obligation  giving  rise  to  such  purchase
obligation  and (ii) at the option of the Holder,  reinstate  the portion of the
Warrant and  equivalent  number of Warrant Stock for which such exercise was not
honored or deliver to the Holder the number of shares of Common Stock that would
have been issued had the Company timely  complied with its exercise and delivery
obligations  hereunder.  The Holder  shall  provide the Company  written  notice
indicating the amounts payable to the Holder in respect of the Buy-In.

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     2. Shares to be Fully Paid;  Reservation of Shares.  The Company  covenants
and agrees that all shares of Common Stock which may be issued upon the exercise
of the  rights  represented  by  this  Warrant  shall,  upon  issuance,  be duly
authorized,  validly  issued,  fully  paid and  nonassessable  and free from all
preemptive  rights of any shareholder  and free of all taxes,  liens and charges
with respect to the issue thereof. The Company further covenants and agrees that
during the period  within  which the rights  represented  by this Warrant may be
exercised,  the Company shall at all times have authorized and reserved, for the
purpose of issue or  transfer  upon  exercise  of the rights  evidenced  by this
Warrant,  a sufficient number of shares of authorized but unissued Common Stock,
or other  securities  and  property,  when and as  required  to provide  for the
exercise of the rights  represented by this Warrant.  The Company shall take all
such action as may be  necessary  to assure that such shares of Common Stock may
be  issued  as  provided  herein  without  violation  of any  applicable  law or
regulation,  or of any  requirements  of any domestic  securities  exchange upon
which the Common  Stock may be  listed.  The  Company  shall not take any action
which  would  result in any  adjustment  (pursuant  to  Section 4 hereof) of the
Exercise Price if the total number of shares of Common Stock issuable after such
action,  together  with all  shares of Common  Stock then  outstanding  and then
issuable  upon  exercise  of all  options  and all  similar  rights and upon the
conversion of all convertible securities then outstanding would exceed the total
number of shares of Common Stock then  authorized by the  Company's  articles of
incorporation.

3.   Exercise.

     3.1 Payment of Exercise  Price.  Payment of the Exercise Price may be made,
at the option of the Holder, (i) in cash or by check, (ii) by canceling all or a
portion of any indebtedness of the Company to the Holder,  in an amount equal to
the aggregate  Exercise  Price of the shares of Common Stock then being acquired
by the Holder upon exercise of this Warrant,  (iii) by a combination of cash and
cancellation of such  indebtedness,  or (iv) by electing a net issue exercise in
the manner  described in Section 3.2 below.

     3.2 Net Issue  Exercise.  In lieu of exercising  this Warrant by payment of
the  Exercise  Price  pursuant  to Section  3.1  above,  the Holder may elect to
convert this Warrant (the  "Conversion  Right"),  in whole or in part,  into the
number of shares of Common Stock calculated  pursuant to the following  formula,
by surrendering this Warrant and specifying the number of shares of Common Stock
which the Holder desires to convert:

                  X = Y (A - B)
                   ---------
                     A

where:            X = the number of shares of Common Stock to be issued to the
                      Holder;

                  Y = the number of shares of Common Stock subject to this
                      Warrant for which the Conversion Right is being exercised;

                  A = the fair market value of one share of Common Stock; and

                  B = the Exercise Price, as adjusted.

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<PAGE>

     As used  herein,  the fair market  value of one share of Common Stock shall
mean the closing price per share of the Company's  Common Stock on the principal
securities  exchange  on which the Common  Stock is then  listed or  admitted to
trading or, if not then listed or admitted to trading on any such  exchange,  on
the NASDAQ National Market System, or if not then listed or traded on the NASDAQ
National  Market  System,  the  average of the bid and offer  price per share on
NASDAQ,  in each case averaged over the ten (10) trading days  consisting of the
day  preceding  the date upon which the  Warrant is  exercised  and the nine (9)
consecutive  trading  days prior to such day. If at any time the Common Stock is
not listed or traded on any exchange or system, the current fair market value of
a share of Common  Stock shall be the price per share  which the  Company  could
obtain from a willing buyer (not a current employee, consultant or director) for
shares of Common Stock sold by the Company,  as  determined in good faith by the
Company's board of directors.  Notwithstanding  the preceding  sentence,  if the
Company  shall become a party to a merger,  acquisition  or other  consolidation
pursuant  to which the Company is not the  surviving  entity,  the current  fair
market value of a share of Common Stock shall be deemed to be the value received
by the holders of the Company's Common Stock pursuant to such transaction.

     In the event of any conversion of this Warrant, certificates for the shares
of stock so converted  shall be  delivered to the Holder as soon as  practicable
but, in any event, within three (3) days thereafter and, unless this Warrant has
been fully converted or has expired,  a new Warrant  representing the portion of
the  shares,  if any,  with  respect to which this  Warrant  shall not have been
converted,  shall also be issued to the Holder as soon as practicable but within
such three (3) day period.

     4.  Adjustment of Exercise  Price and Number of Shares.  The Exercise Price
and/or the  number  and kind of shares  purchasable  upon the  exercise  of this
Warrant shall be subject to adjustment  from time to time upon the occurrence of
certain  events  described in this Section 4.

     4.1  Subdivision or Combination of Stock.  In case the Company shall at any
time subdivide its  outstanding  shares of Common Stock into a greater number of
shares,  the number of shares  purchasable  hereunder  shall be  proportionately
increased and the Exercise Price in effect immediately prior to such subdivision
shall be proportionately reduced and, conversely, in case the outstanding shares
of Common  Stock of the  Company  shall be  combined  into a  smaller  number of
shares,  the number of shares  purchasable  hereunder  shall be  proportionately
reduced and the Exercise Price in effect  immediately  prior to such combination
shall be  proportionately  increased.

     4.2 Dividends or Distributions  in Common Stock,  Other Stock, or Property.
If at any time or from time to time the  holders of Common  Stock (or any shares
of capital stock or other securities at the time receivable upon the exercise of
this Warrant) shall have received or become entitled to receive, without payment
therefore,

     (a) Common  Stock or any shares of stock or other  securities  which are at
any time  directly or indirectly  convertible  into or  exchangeable  for Common
Stock, or any rights or options to subscribe for,  purchase or otherwise acquire
any of the foregoing by way of dividend or other distribution,

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<PAGE>

     (b) any cash paid or  payable  otherwise  than as a regular  periodic  cash
dividend at a rate which is substantially  consistent with past practice (or, in
the case of an initial  dividend,  at a rate which is  substantially  consistent
with  industry  practice),  or

     (c) Common Stock or other or additional  capital stock or other  securities
or property (including cash) by way of spin-off,  split-up, or similar corporate
distribution  (other  than  shares of  Common  Stock  issued  as a stock  split,
adjustments  in  respect of which  shall be covered by the terms of Section  4.1
above),

then and in each such case,  the Holder hereof shall,  upon the exercise of this
Warrant,  be entitled to receive,  in addition to the number of shares of Common
Stock receivable thereupon,  and without payment of any additional consideration
thereof,  the amount of stock and other securities and property  (including cash
in the cases  referred to in clauses (b) and (c) above)  which such Holder would
hold on the date of such  exercise  had it been the  holder  of  record  of such
Common Stock as of the date on which holders of Common Stock  received or became
entitled to receive such shares  and/or all other  additional  capital stock and
other   securities   and   property.

     4.3 Reorganization,  Reclassification,  Consolidation or Merger. If, at any
time while this Warrant is  outstanding,  (i) the Company  effects any merger or
consolidation  of the  Company  with or into  another  entity,  (ii) the Company
effects any sale of all or substantially all of its assets in one or a series of
related  transactions,  (iii) any tender offer or exchange offer (whether by the
Company or another  entity) is  completed  pursuant  to which  holders of Common
Stock are  permitted to tender or exchange  their  shares for other  securities,
cash or property, or (iv) the Company effects any reclassification of the Common
Stock or any  compulsory  share  exchange  pursuant to which the Common Stock is
effectively  converted into or exchanged for other securities,  cash or property
(in any such case, a "Fundamental Transaction"),  then the Holder shall have the
right thereafter to receive,  upon exercise of this Warrant, the same amount and
kind of  securities,  cash or property as it would have been entitled to receive
upon the occurrence of such Fundamental  Transaction if it had been, immediately
prior to such Fundamental Transaction, the holder of the number of Warrant Stock
then  issuable   upon   exercise  in  full  of  this  Warrant  (the   "Alternate
Consideration").  The  aggregate  Exercise  Price for this  Warrant  will not be
affected by any such  Fundamental  Transaction,  but the Company shall apportion
such aggregate Exercise Price among the Alternate  Consideration in a reasonable
manner  reflecting  the  relative  value  of  any  different  components  of the
Alternate  Consideration.  If holders of Common Stock are given any choice as to
the  securities,  cash or property to be received in a Fundamental  Transaction,
then the Holder shall be given the same choice as to the Alternate Consideration
it  receives  upon any  exercise  of this  Warrant  following  such  Fundamental
Transaction.  At the Holder's request, any successor to the Company or surviving
entity in such Fundamental  Transaction  shall issue to the Holder a new warrant
consistent  with the foregoing  provisions  and evidencing the Holder's right to
purchase the  Alternate  Consideration  for the  aggregate  Exercise  Price upon
exercise  thereof.  The terms of any  agreement  pursuant to which a Fundamental
Transaction  is effected  shall  include terms  requiring any such  successor or
surviving  entity  to  comply  with the  provisions  of this  paragraph  (c) and
ensuring that the Warrant (or any such  replacement  security) will be similarly
adjusted upon any subsequent transaction analogous to a Fundamental Transaction.
If any Fundamental  Transaction constitutes or results in a change of control of
the  Company,  then at the request of the Holder  delivered  before the 90th day
after such  Fundamental  Transaction,  the  Company  (or any such  successor  or
surviving

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entity) will purchase the Warrant from the Holder for a purchase price,  payable
in cash within  five  trading  days after such  request  (or,  if later,  on the
effective  date of the  Fundamental  Transaction),  equal  to the  value  of the
Warrant on the effective date of the Fundamental Transaction, determined using a
Black Scholes valuation model and assumptions  reasonably mutually acceptable to
the Company and Holder,  provided  that for  purposes of such  calculation,  the
market  price of the Common  Stock shall be the higher of the  closing  price on
trading  day  immediately  preceeding  or the  closing  price on the trading day
immediately  following the public announcement of such Fundamental  Transaction,
and in no event will the volatility  factor be greater than fifty percent (50%).
For  purposes of this Section  4.3,  "change of control"  means a sale of all or
substantially  all of the assets of the Company or a consolidation  or merger of
the  Company  into or with any entity or  entities  after  which the  holders of
capital stock of the Company hold less than fifty percent (50%) of the aggregate
outstanding  voting securities of the surviving entity.

     4.4 Additional  Shares.  The number of shares purchasable upon the exercise
of this  Warrant  shall be subject to increase  from time to time in  accordance
with the  provisions  of  Section  6.3(b)  of the  Purchase  Agreement  upon the
occurrence of certain events as set forth in that section.

     4.5 Sale or Issuance Below Warrant Price.

     (a) Adjustment to Warrant  Price.  The "Warrant  Price" shall  initially be
equal to the Fair Market Value, as defined in the Purchase Agreement,  and shall
be subject to adjustment and readjustment from time to time, as required by this
Section 4.5. If the Company shall at any time or from time to time issue or sell
any of its Common Stock, convertible preferred stock, warrants,  options, or any
other rights or securities convertible into or exchangeable for Common Stock for
a  consideration  per share less than the  Warrant  Price in effect  immediately
prior  to the  time of such  issue  or sale  (excluding  certain  securities  as
described  below),  the Warrant  Price shall be reduced  concurrently  with such
issue or sale to a price  (calculated to the nearest tenth of a cent) determined
by dividing  (A) the number of shares of Common  Stock  Outstanding  immediately
prior  to such  issue  or sale  multiplied  by the  Warrant  Price  plus (B) the
aggregate consideration received for such issue or sale, by the number of shares
of Common Stock Outstanding immediately after such issue or sale.

     The  Exercise  Price  shall  also  be  concurrently   reduced  to  a  price
(calculated to the nearest tenth of a cent)  determined by  multiplying  1.25 by
the reduced Warrant Price.

     The number of shares of Common Stock "outstanding" as used in the foregoing
calculation  shall  mean the  number  of  shares  of  Common  Stock  issued  and
outstanding  plus the  number of shares of Common  Stock  issuable  upon (x) the
exercise of all  outstanding  options and warrants to purchase  Common Stock and
(y) the conversion of all outstanding  convertible preferred stock,  convertible
debentures,  or any other rights or securities  convertible into or exchangeable
for Common  Stock.

     (b)  Exceptions to Adjustment  of the Warrant  Price.  No adjustment to the
Warrant  Price or the  Exercise  Price shall be made under this Section 4.5 as a
result of any grant or

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<PAGE>

issuance by the Company of any rights or  securities  approved by the  Company's
board of directors in good faith,  as follows:

     (i) Any  grant  or  exercise  of any  shares  of  Common  Stock  issued  to
employees,  officers and directors of or consultants to the Company  pursuant to
any stock option plan, employee stock purchase plan or similar plan or incentive
arrangement  approved by the  Company's  board of  directors;

     (ii) Any options,  warrants or other  convertible  securities  or rights or
agreements to purchase securities of the Company outstanding on the date hereof;

     (iii) Any  underwritten  public  offerings of the equity  securities of the
Company (excluding any equity line of credit);

     (iv) Any  equity  securities  issued  for  consideration  other  than  cash
pursuant  to a merger,  consolidation,  acquisition  or other  similar  business
combination;

     (v) Any equity securities issued in connection with any stock split,  stock
dividend or recapitalization  of the Company;

     (vi) Any  equity  securities  of the  Company  issued  in  connection  with
strategic  transactions involving the Company and other entities in a similar or
complementary  business  of the  Company,  such as, but not  limited  to,  joint
ventures,  manufacturing,   marketing  or  distribution  agreements,  technology
transfer agreements, research and development agreements; provided that, in each
case, the primary purpose of such  transaction is not the raising of capital for
the  Company  and the  primary  business  purpose  of such  other  entity is not
investing  in  securities;

     (vii) Any equity securities of the Company issued pursuant to any equipment
leasing   arrangement  or  debt  financing  from  a  bank  or  other   financial
institution;  provided that, in each case, the primary  business purpose of such
other  entity is not  investing in  securities;  and

     (viii) Any shares of Common  Stock issued upon the exercise of this Warrant
or any similar  warrant  issued  pursuant to the Purchase  Agreement.

     (c) Other Factors.  No adjustment shall be made under this Section 4.5 upon
the issuance of any additional  shares of Common Stock which are issued pursuant
to the exercise of any options or warrants or other rights or the  conversion of
any  convertible  securities if any adjustment  shall  previously have been made
upon the issuance of any such options,  warrants or rights or the  conversion of
any convertible securities as provided above. If the maximum number of shares of
Common Stock otherwise  issuable or deemed issued for purposes of this Section 4
upon the  exercise of any options,  warrants,  convertible  securities  or other
rights or  agreements  is not in fact issued and the  remaining  portion of such
options, warrants,  convertible securities or other rights or agreements expires
or otherwise terminates,  then the Exercise Price of this Warrant, as previously
adjusted pursuant to this Section 4.5, shall be readjusted as if such expired or
terminated  portions  had not been  considered  issuable  or deemed  issued  for
purposes of this Section 4.5. In the case of the issuance or deemed  issuance of
shares of Common Stock for a  consideration  other than cash, the

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consideration  received by the Company  therefor  shall be deemed to be the fair
value of such  consideration  as determined in good faith by the Company's board
of directors.

     4.6 Limitations on Exercise.

     (a)  Notwithstanding  anything to the contrary contained herein, the number
of shares of Common  Stock that may be acquired by the Holder upon any  exercise
of this Warrant (or otherwise in respect  hereof) shall be limited to the extent
necessary to insure that, following such exercise (or other issuance), the total
number of shares of Common Stock then beneficially  owned by such Holder and its
Affiliates (as defined in Rule 501(b) of Regulation D under the Securities  Act)
under  Section  13(d) of the  Securities  Exchange Act of 1934,  as amended (the
"Exchange  Act"),  does not  exceed  4.999%  of the total  number of issued  and
outstanding  shares of Common Stock  (including  for such purposes the shares of
Common  Stock  issuable  upon  such  exercise).  For such  purposes,  beneficial
ownership  shall be determined in accordance  with Section 13(d) of the Exchange
Act and the rules and regulations  promulgated  thereunder.  Each delivery of an
Exercise Notice hereunder will constitute a representation by the Holder that it
has evaluated the limitation set forth in this paragraph and determined that the
issuance of the full number of shares of Common  Stock to be issued as requested
in such  Exercise  Notice is  permitted  under  this  paragraph.  The  Company's
obligation to issue shares of Common Stock in excess of the limitation  referred
to in this  Section  shall be  suspended  (and  shall  not  terminate  or expire
notwithstanding any contrary provisions hereof) until such time, if any, as such
shares of Common  Stock may be issued in  compliance  with such  limitation.  By
written  notice to the  Company,  the  Holder may waive the  provisions  of this
Section but (i) any such waiver,  including such increase in shares, will not be
effective until the 61st day after such notice is delivered to the Company,  and
(ii) any such waiver  will apply only to the Holder and not to any other  holder
of Warrants.

     (b)  Notwithstanding  anything to the contrary contained herein, the number
of shares of Common  Stock that may be acquired by the Holder upon any  exercise
of this Warrant (or otherwise in respect  hereof) shall be limited to the extent
necessary to insure that, following such exercise (or other issuance), the total
number of shares of Common Stock then beneficially  owned by such Holder and its
Affiliates (as defined in Rule 501(b) of Regulation D under the Securities  Act)
under  Section 13(d) of the  Securities  Exchange Act, does not exceed 9.999% of
the total number of issued and outstanding shares of Common Stock (including for
such purposes the shares of Common Stock issuable upon such exercise).  For such
purposes,  beneficial  ownership  shall be determined in accordance with Section
13(d) of the Exchange Act and the rules and regulations  promulgated thereunder.
Each delivery of an Exercise Notice  hereunder will constitute a  representation
by the Holder that it has evaluated the  limitation  set forth in this paragraph
and determined that the issuance of the full number of shares of Common Stock to
be  issued  as  requested  in such  Exercise  Notice  is  permitted  under  this
paragraph. The Company's obligation to issue shares of Common Stock in excess of
the  limitation  referred to in this Section  shall be suspended  (and shall not
terminate or expire  notwithstanding  any contrary provisions hereof) until such
time,  if any, as such shares of Common Stock may be issued in  compliance  with
such  limitation.  By written  notice to the  Company,  the Holder may waive the
provisions of this Section but (i) any such waiver,  including  such increase in
shares,  will not be effective until the 61st day after such notice is delivered
to the  Company,  and (ii) any such waiver will apply only to the Holder and not
to any other holder of Warrants.

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     4.7 Notice of Adjustment. Upon any adjustment of the Exercise Price, and/or
any increase or decrease in the number of shares  purchasable  upon the exercise
of this Warrant, the Company shall issue a certificate prepared by the Company's
chief  financial  officer,  stating  the  Exercise  Price  resulting  from  such
adjustment  and the  increase  or  decrease,  if any,  in the  number  of shares
purchasable  at such price upon the exercise of this Warrant,  and setting forth
in  reasonable  detail the method of  calculation  and the facts upon which such
calculation is based.  The Company shall send a copy of such  certificate to the
Holder of this Warrant,  by first class mail, postage prepaid, at the address of
such Holder as shown on the books of the Company,  promptly after the occurrence
of the event  triggering an adjustment  under this Section 4.

     4.8 Other  Notices.  If at any time:

     (a) the Company shall declare any cash dividend or distribution upon shares
of its Common Stock;

     (b) the Company shall declare any dividend upon its Common Stock payable in
stock or make any special  dividend or other  distribution to the holders of its
Common  Stock;

     (c) the Company shall offer for subscription pro rata to the holders of its
Common Stock any  additional  shares of stock of any class or other  rights,  or
shall offer any of its securities pursuant to a public offering;

     (d) there shall be any capital  reorganization or  reclassification  of the
capital stock of the Company,  or consolidation or merger of the Company with or
into, or sale of all or substantially all of its assets to, another corporation;

     (e) there shall be a voluntary or involuntary  dissolution,  liquidation or
winding-up of the Company;  or

     (f) the Company shall take or propose to take any other  action,  notice of
which is  actually  provided  (or is required  to be  provided,  pursuant to any
written agreement) to holders of Common Stock;

then,  in any one or more of said cases,  the Company shall give, by first class
mail, postage prepaid, addressed to the Holder of this Warrant at the address of
such Holder as shown on the books of the Company,  written  notice setting forth
the  principal  terms of such event (i) at least  twenty  (20) days prior to the
date on which the books of the Company  shall  close or a record  shall be taken
for such dividend, distribution or subscription rights or for determining rights
to vote in respect of any such reorganization, reclassification,  consolidation,
merger, sale, dissolution,  liquidation or winding-up, or other action described
in  clause  (f)  above  and  (ii)  in the  case  of any  such  public  offering,
reorganization,  reclassification,  consolidation,  merger,  sale,  dissolution,
liquidation  or  winding-up,  or other  action  described in clause (f) above at
least  twenty  (20) days prior to the date when the same shall take  place.  Any
notice given in accordance with the foregoing clause (i) shall also specify,  in
the case of any such dividend,  distribution or subscription rights, the date on
which the holders of Common Stock shall be entitled thereto. Any notice given in
accordance  with the  foregoing  clause

                                       9
<PAGE>

(ii) shall also specify the  approximate  date after which the holders of Common
Stock shall be entitled to exchange  their Common Stock for  securities or other
property deliverable upon such reorganization, reclassification,  consolidation,
merger, sale dissolution,  liquidation or winding-up,  or other action described
in clause (f) above, as the case may be.

     5. Cash  Dividends.  If the Company,  at any time while this Warrant or any
portion hereof remains  outstanding and unexpired,  shall pay or elect to pay or
declare and set apart for payment a regular periodic cash dividend on any shares
of Common  Stock,  the Holder of this Warrant  shall be entitled to receive such
dividend as if this Warrant had then been exercised.

     6. Issue Tax. The issuance of certificates  for shares of Common Stock upon
the exercise of this Warrant shall be made without  charge to the Holder of this
Warrant  for any issue  tax in  respect  thereof;  provided,  however,  that the
Company  shall not be required to pay any tax which may be payable in respect of
any transfer  involved in the issuance and delivery of any certificate in a name
other than that of the then Holder of the Warrant being exercised.

     7. Closing of Books.  The Company will at no time close its transfer  books
against the  transfer of this Warrant or of any shares of Common Stock issued or
issuable upon the exercise of this Warrant in any manner during normal  business
hours which  interferes with the timely  exercise of this Warrant.

     8. No Voting  Rights;  Limitation of Liability.  Nothing  contained in this
Warrant  shall be construed as  conferring  upon the Holder  hereof the right to
vote or to consent as a shareholder in respect of meetings of  shareholders  for
the  election of  directors  of the  Company or any other  matters or any rights
whatsoever as a shareholder of the Company. No provisions hereof, in the absence
of affirmative  action by the Holder to purchase shares of Common Stock,  and no
mere enumeration herein of the rights or privileges of the Holder hereof,  shall
give  rise to any  liability  of such  holder  for the  Exercise  Price  or as a
shareholder of the Company, whether such liability is asserted by the Company or
by its creditors.

     9.  Registration  Rights.  The  Holder  hereof  shall  be  entitled  to the
registration rights set forth in the Purchase Agreement.

     10.  Transferability of Securities.

     10.1 Transferability.  The Warrant and Warrant Stock shall be transferable,
in whole or in part,  without  charge to the Holder hereof  (except for transfer
taxes),  upon surrender of this Warrant  properly  endorsed and upon delivery of
the Assignment in  substantially  the form attached hereto as Exhibit B, subject
to  the  conditions   specified  in  this  Section  10  and  by  any  applicable
restrictions  set  forth  in  Section  6.3  of  the  Purchase  Agreement,  which
conditions  and  restrictions  are  intended  to  insure   compliance  with  the
provisions of the Securities Act. Each Holder will cause any proposed transferee
of the  Warrant  or  Warrant  Stock to agree  to take and hold  such  securities
subject to the provisions  and upon the conditions  specified in this Section 10
and by the restrictions set forth in the Purchase Agreement if and to the extent
that such  securities  continue to be restricted  securities in the hands of the
transferee.  Each taker and  Holder of this  Warrant,  by taking or holding  the
same,  consents and agrees that this Warrant,  when endorsed in blank,  shall be

                                       10
<PAGE>

deemed negotiable, and that the Holder hereof, when this Warrant shall have been
so endorsed,  may be treated by the Company and all other  persons  dealing with
this  Warrant as the  absolute  owner  hereof for any  purpose and as the person
entitled to  exercise  the rights  represented  by this  Warrant;  but until the
transfer  hereof  on the  books  of the  Company,  the  Company  may  treat  the
registered owner hereof as the owner for all purposes.

     10.2  Restrictive  Legend and  Restrictions  on  Transfer.  The Warrant and
Warrant Stock shall be subject to the legend  requirements  and  restrictions on
transfer as set forth in the Purchase Agreement.

     10.3 Rights and  Obligations  Survive  Exercise of Warrant.  The rights and
obligations of the holder of the Warrant Stock  contained in this Section 10 and
the Purchase Agreement shall survive the exercise of this Warrant.

     11.  Modification and Waiver.  This Warrant and any provision hereof may be
changed,  waived,  discharged  or  terminated  only by an  instrument in writing
signed  by the  party  against  which  enforcement  of the same is  sought.

     12. Notices. Any notice, request or other document required or permitted to
be given or delivered to the Holder  hereof or the Company shall be delivered or
shall be sent by certified or registered  mail,  postage  prepaid,  to each such
Holder at its  address as shown on the books of the Company or to the Company at
the address indicated in the first paragraph of this Warrant or shall be sent by
facsimile transmission to any number provided by a Holder or the Company for the
purpose of this Section 12.

     13. Binding  Effect on  Successors.  This Warrant shall be binding upon any
corporation  succeeding the Company by merger,  consolidation  or acquisition of
all or substantially all of the Company's assets.  All of the obligations of the
Company relating to the Warrant Stock shall survive the exercise and termination
of this Warrant.  All of the covenants and agreements of the Company shall inure
to  the  benefit  of the  successors  and  assigns  of the  Holder  hereof.

     14. Descriptive Headings and Governing Law. The descriptive headings of the
several  sections and  paragraphs  of this Warrant are inserted for  convenience
only and do not constitute a part of this Warrant.

     15.  Governing  Law and  Forum.  This  Warrant  shall  be  governed  by and
construed in accordance  with the laws of the State of New York,  without giving
effect to any  choice of law  provisions  thereof,  and the  federal  law of the
United  States of America.  The parties  hereto agree to submit to the exclusive
jurisdiction  of the  federal  and  state  courts  of the State of New York with
respect to the  interpretation of this Warrant or for the purposes of any action
arising  out  of or  related  to  this  Warrant.

     16.  Lost  Warrants  or Stock  Certificates.  The  Company  represents  and
warrants  to  the  Holder  hereof  that  upon  receipt  of  evidence  reasonably
satisfactory to the Company of the loss,  theft,  destruction,  or mutilation of
any Warrant or stock  certificate  and,  in the case of any such loss,  theft or
destruction,  upon  receipt  of an  indemnity  reasonably  satisfactory  to  the
Company,  or in the case of any such mutilation upon surrender and  cancellation
of such Warrant or stock  certificate,  the

                                       11
<PAGE>

Company at its expense will make and deliver a new Warrant or stock certificate,
of like tenor, in lieu of the lost,  stolen,  destroyed or mutilated  Warrant or
stock certificate.

     17.  Fractional  Shares. No fractional shares shall be issued upon exercise
of this Warrant. The Company shall, in lieu of issuing any fractional share, pay
to the Holder  entitled  to such  fraction a sum in cash equal to such  fraction
multiplied by the then fair market value of a share of Common Stock, which shall
be determined in accordance with the provisions of Section 3 of this Warrant.

     IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed
and delivered by its officers, thereunto duly authorized as of January 14, 2002.

                                          COMPANY:

                                          TRIMBLE NAVIGATION LIMITED

                                          By:  ________________________________

                                          Print Name: _________________________

                                          Title: ______________________________

ACKNOWLEDGED AND AGREED:

HOLDER:

_______________________________________

By: ___________________________________

Print Name: ___________________________

Title: ________________________________

Address: ______________________________

         ______________________________

         ______________________________

                                       12
<PAGE>

                                    EXHIBIT A

                              FORM OF SUBSCRIPTION

                  (To be signed only upon exercise of warrant)

TO:      Chief Financial Officer
         Trimble Navigation Limited
         645 North Mary Avenue
         Sunnyvale, California   94088

     The  undersigned,  the holder of the  within  Warrant,  hereby  irrevocably
elects to exercise the purchase  right  represented  by such Warrant for, and to
thereunder:

          (a)  purchase  _____________  shares of the  Common  Stock of  Trimble
     Navigation Limited and herewith tenders full payment of  $________________,
     representing  the full purchase price for such shares at the Exercise Price
     per share provided for in such Warrant;

            (Leave blank if you choose the second alternative below.)

or

          (b) effect Conversion Right provisions as provided for in Section 3 of
     the Warrant with respect to  _______________  shares otherwise  exercisable
     pursuant to the Warrant and receive  that number of shares of Common  Stock
     of Trimble Navigation Limited as determined in accordance with terms of the
     Conversion  Right  provided for in the Warrant,  in lieu of exercising  the
     attached  Warrant  for cash,  check or  consideration  as  provided  for in
     Section 3 of the Warrant.

   (Initial here if the undersigned elects this second alternative. _______)

     The  undersigned  represents that it is acquiring such Common Stock for its
own account for investment and not with a view to or for sale in connection with
any distribution  thereof (subject,  however, to any requirement of law that the
disposition thereof shall at all times be within its control).

 Dated:  ___________________
                                    ___________________________________________
                                    (Signature must conform in all respects to
                                     name of holder as specified on the face of
                                     the Warrant)

                                    ___________________________________________
                                    ___________________________________________
                                    (Address)

                                       13
<PAGE>

                                    EXHIBIT B

                               FORM OF ASSIGNMENT

     FOR VALUE  RECEIVED,  the  undersigned,  the holder of the within  Warrant,
hereby sells,  assigns and transfers all of the rights of the undersigned  under
the within Warrant, with respect to the number of shares of Common Stock covered
thereby set forth hereinbelow, unto:

 Name of Assignee(s)             Address                         No. of Shares

Dated:  ___________________

                                      _________________________________________
                                      (Signature must conform in all respects to
                                       name of holder as specified on the face
                                       of the Warrant)

                                       14
<PAGE>EXHIBIT 10.18

                              EMPLOYMENT AGREEMENT

     This EMPLOYMENT  AGREEMENT (the "Agreement") is entered into as of December
17, 2001, by and between MARK H. PERRY (the "Employee") and URS  CORPORATION,  a
New  York  Stock  Exchange  listed  Delaware  corporation  headquartered  at 100
California  Street,  Suite  500,  San  Francisco,   California  94111-4529  (the
"Company").

     1. TERM OF EMPLOYMENT.

          (a) Basic Rule.  The Company  agrees to employ the  Employee,  and the
     Employee  agrees to remain in  employment  with the Company,  from the date
     hereof  until  the  date on  which  the  Employee's  employment  terminates
     pursuant to Subsection (b), (c), (d), (e) or (f) below.

          (b)  Termination by Company  Without Cause.  The Company may terminate
     the Employee's  employment at any time without Cause (as defined below) and
     for any reason or no reason  whatsoever by giving the Employee  thirty (30)
     days' advance notice in writing.

          (c)  Termination  by Company for Cause.  The Company may terminate the
     Employee's  employment for Cause.  For all purposes  under this  Agreement,
     "Cause" shall mean:

               (i)  A  willful   failure  or   omission   of  the   Employee  to
          substantially perform his duties hereunder,  other than as a result of
          the death or Disability (as defined below) of the Employee;

               (ii) A  willful  act  by  the  Employee  that  constitutes  gross
          misconduct or fraud;

               (iii) The  Employee's  conviction  of, or plea of "guilty" or "no
          contest" to, a felony; or

               (iv) The Employee's  disobedience of orders and directives of the
          Chief Financial Officer of the Company.

          (d) Resignation by Employee. The Employee may terminate his employment
     by giving the Company thirty (30) days' advance notice in writing.

          (e) Death of  Employee.  The  Employee's  employment  shall  terminate
     automatically in the event of his death.

                                     - 1 -
<PAGE>

          (f)  Disability.  The Company may terminate the Employee's  employment
     due to Disability by giving the Employee  thirty (30) days' advance  notice
     in writing. For all purposes under this Agreement,  "Disability" shall mean
     that the Employee,  at the time the notice is given,  has performed none of
     his duties under this  Agreement  for a period of not less than one hundred
     eighty (180) consecutive days as a result of his incapacity due to physical
     or mental  illness.  In the event the Employee  resumes the  performance of
     substantially all of his duties hereunder before  termination of his active
     employment  under  this  Section  1(f)  becomes  effective,  the  notice of
     termination shall automatically be deemed to have been revoked because of a
     mental or physical impairment that substantially  affects one or more major
     life activities.

          (g) Rights Upon Termination.  Except as expressly provided in Sections
     6 and 7, upon the termination of the Employee's employment pursuant to this
     Section  1,  the  Employee  shall  only be  entitled  to the  compensation,
     benefits and reimbursements described in Sections 3, 4 and 5 for the period
     preceding the effective  date of the  termination.  The payments under this
     Agreement shall fully discharge all  responsibilities of the Company to the
     Employee.

          (h) Employment by Affiliate.  The employment of the Employee shall not
     be  considered  to have  terminated  for purposes of this  Agreement if the
     Employee is employed by a parent,  subsidiary or affiliated  corporation or
     related entity of the Company.

          (i) Termination of Agreement.  This Agreement shall terminate when all
     obligations of the parties hereunder have been satisfied.

     2. DUTIES AND SCOPE OF EMPLOYMENT.

          (a)  Position.  The  Company  agrees  to  employ  the  Employee  in an
     executive position as the Vice President,  Finance and Corporate Controller
     of the Company for the term of his  employment  under this  Agreement.  The
     Employee  shall  report to the Chief  Financial  Officer of the Company and
     shall  serve in such  positions  on behalf of the  Company  and its parent,
     subsidiary and  affiliated  corporations  and related  entities and perform
     such duties  consistent  with an executive and Vice President and Corporate
     Controller  position for such  corporations and entities as may be required
     by such Chief  Financial  Officer.  It is  anticipated  that the Employee's
     duties  will  require  him to travel  frequently  and  extensively.  If the
     Employee's principal office is changed from the San Francisco Bay Area, the
     Company shall reimburse  reasonable  relocation expenses of the Employee in
     accordance with generally applicable policies of the Company.

          (b)  Obligations.  During  the  term  of  his  employment  under  this
     Agreement,  the Employee shall devote his full business efforts and time to
     the Company and its parent,  subsidiary  and  affiliated  corporations  and
     related  entities  and shall not  render  services  to any other  person or
     entity without the prior written consent of the Chief Financial  Officer of
     the Company. The foregoing,  however,  shall not preclude the Employee from
     (i) engaging in appropriate civic, charitable or religious activities,

                                     - 2 -
<PAGE>

     (ii) devoting a reasonable  amount of time to private  investments  that do
     not interfere or conflict with his responsibilities to the Company or (iii)
     serving on the boards of directors of other  companies  provided  that such
     service does not  interfere or conflict  with his  responsibilities  to the
     Company.

          (c) Resignation from Other Positions.  Immediately upon request by the
     Company, before or after the termination of the employment of the Employee,
     he shall resign from any position he holds as director,  officer,  trustee,
     nominee, agent for service of process, attorney-in-fact or similar position
     with  respect  to  the  Company  or  a  parent,  subsidiary  or  affiliated
     corporation  or related entity of the Company,  and shall execute,  verify,
     acknowledge,  swear to and deliver any documents and instruments reasonably
     requested by the Company or required to reflect such resignation.

     3. BASE COMPENSATION AND TARGET BONUS.

     During the term of his employment under this Agreement,  the Company agrees
to pay the Employee as compensation  for his services a base salary at an annual
rate of Three Hundred Thousand Dollars ($300,000), or at such higher rate as the
Company  may  determine  from time to time.  Such  salary  shall be  payable  in
accordance  with  the  Company's  standard  payroll   procedures.   (The  annual
compensation  specified in this Section 3,  together  with any increases in such
compensation  that the  Company  may grant from time to time,  is referred to in
this  Agreement as "Base  Compensation.")  In  addition,  during the term of his
employment  under this  Agreement,  the Company  agrees that the Employee  shall
participate in the Company's annual bonus plan with a target bonus percentage of
at least forty percent (40%) of Base Compensation.

     4. EMPLOYEE BENEFITS, STOCK OPTIONS, AND INCENTIVE COMPENSATION,  AND OTHER
        COMPENSATION PLANS AND PROGRAMS.

     During the term of his employment under this Agreement,  the Employee shall
be eligible to participate in the employee benefit plans, stock option and other
equity-based incentive and compensation plans, and other executive incentive and
compensation  programs  maintained  with  respect to  employees  of the Company,
subject in each case to (i) the generally applicable terms and conditions of the
applicable plan or program and to the  determinations  of the Board of Directors
of the  Company or any  committee  or other  person  administering  such plan or
program,  (ii) determinations by the Company, any such corporation or entity, or
any such Board,  committee  or person as to whether and to what extent  Employee
shall so participate or cease to participate, and (iii) amendment,  modification
or termination  of any such plan or program in the sole and absolute  discretion
of the Company or its parent,  subsidiary or affiliated  corporation  or related
entity maintaining such plan.

     5. BUSINESS EXPENSES.

     In accordance with the Company's generally applicable policies,  (i) during
the  term  of his  employment  under  this  Agreement,  the  Employee  shall  be
authorized to incur  necessary and reasonable  travel,  entertainment  and other
business expenses in connection with his duties hereunder,  and (ii) the Company
shall reimburse the Employee for such expenses upon  presentation of an itemized
account and appropriate supporting documentation.

                                     - 3 -
<PAGE>

     6. CERTAIN TERMINATIONS OF EMPLOYMENT FOLLOWING CHANGE IN CONTROL.

          (a)  Definition.  For all purposes  under this  Agreement,  "Change in
     Control" shall mean that,  after the date of this  Agreement,  any "person"
     (as  such  term is used in  Sections  13(d)  and  14(d)  of the  Securities
     Exchange  Act of 1934,  as amended)  other than a person  that  immediately
     before the acquisition or aggregation of securities referred to immediately
     hereafter,  directly or indirectly controls,  is controlled by, or is under
     common control with the Company,  through the acquisition or aggregation of
     securities,  becomes  the  beneficial  owner,  directly or  indirectly,  of
     securities of the Company  representing  51 percent or more of the combined
     voting power of the then outstanding  securities ordinarily (and apart from
     rights  accruing under special  circumstances)  having the right to vote at
     elections of directors (the "Base Capital  Stock");  except that any change
     in the relative  beneficial  ownership of the  Company's  securities by any
     person  resulting solely from a reduction in the aggregate number of shares
     of  Base  Capital  Stock,  and any  decrease  thereafter  in such  person's
     ownership of securities shall be disregarded until such person increases in
     any manner,  directly or indirectly,  such person's beneficial ownership of
     any securities of the Company.

          (b) Good Reason. For all purposes under this Agreement,  "Good Reason"
     shall  mean  that  the  Employee  has  incurred  a  reduction  in his  Base
     Compensation or annual target bonus.

          (c) Change in Control Payment and Severance  Benefits.  If, during the
     term of this  Agreement  and (i) within one year after the  occurrence of a
     Change in Control, the Employee voluntarily resigns his employment for Good
     Reason,  (ii) within one year after the  occurrence of a Change in Control,
     the Company terminates the Employee's  employment for any reason other than
     Cause or  Disability,  then the  Employee  shall be  entitled  to receive a
     severance payment from the Company (the "Change in Control Payment") and in
     addition  shall be  entitled  to  Severance  Benefits  in  accordance  with
     Subdivision  (ii) of Section  7(a).  No Change in Control  payment shall be
     made in case  of  termination  of  employment  of  Employee  by  reason  of
     resignation of Employee other than for Good Reason,  death of Employee,  or
     any other  circumstance  not  specifically  and expressly  described in the
     immediately  preceding sentence.  The Change in Control Payment shall be in
     an amount  determined  under Section 6(d) below and shall be made in a lump
     sum not more than five (5) business days  following  the effective  date of
     the  Employee's  release as  described  in  Section 8 below.  The Change in
     Control  Payment  shall  be in  lieu  of (i) any  further  payments  to the
     Employee  under  Section  3, (ii) any  further  accrual of  benefits  under
     Sections  4 and 6 with  respect to  periods  subsequent  to the date of the
     employment termination and (iii) any entitlement to a Severance Payment (as
     defined in Subdivision (i) of Section 7(a) below). In addition, at the time
     of the  employment  termination,  the Company shall pay to the Employee all
     accrued and unpaid vacation.

          (d) Amount of Change in Control  Payment.  The amount of the Change in
     Control  Payment shall be equal to one hundred forty percent  (140%) of the
     Employee's  annual rate of Base  Compensation,  as in effect on the date of
     the Change in Control.

                                     - 4 -
<PAGE>

          (e)  Incentive  Programs.  If,  during the term of this  Agreement,  a
     Change in Control  occurs,  the  Employee  shall become fully vested in all
     awards   heretofore  or  hereafter  granted  to  him  under  all  incentive
     compensation,   deferred   compensation,   bonus,   stock   option,   stock
     appreciation  rights,  restricted  stock,  phantom  stock or similar  plans
     maintained  by  the  Company,   any  contrary   provisions  of  such  plans
     notwithstanding.

          (f) No Mitigation.  The Employee shall not be required to mitigate the
     amount of any payment or benefit contemplated by this Section 6 (whether by
     seeking new employment or in any other manner),  nor shall any such payment
     or benefit be reduced by earnings or benefits that the Employee may receive
     from any other source.

     7. OTHER TERMINATIONS OF EMPLOYMENT.

          (a)  Severance  Payment  and  Severance  Benefits.  In the event that,
     during the term of this  Agreement the Company  terminates  the  Employee's
     employment  for any reason other than Cause or  Disability  or the Employee
     voluntarily  resigns his employment for Good Reason within one (1) month of
     the occurrence of the event constituting Good Reason and Section 6 does not
     apply, then:

               (i) The  Company  shall pay an amount  ("Severance  Payment")  in
          installments  (or a lump sum if the  Company so  elects),  as provided
          below,  equal in the  aggregate to one hundred  percent  (100%) of the
          Employee's  annual rate of Base  Compensation as in effect on the date
          of  employment  termination.  If the  Severance  Payment  is  paid  in
          installments, it shall be paid at the same rate and in accordance with
          the same  schedule  as Base  Compensation  would  have  been  paid had
          employment  continued  until the  Severance  Payment  has been made in
          full;  provided,  however, at its election the Company may at any time
          pay  any  remainder  of  the  Severance  Payment  in a lump  sum.  The
          Severance  Payment  shall be paid  commencing  not more  than five (5)
          business days following the effective  date of the Employee's  release
          as  described  in  Section 8 below.  In  addition,  at the time of the
          employment  termination,  the Company  shall pay to the  Employee  all
          accrued and unpaid vacation.

               (ii) For the period of one (1) year following  such  termination,
          the Company  shall (i)  reimburse  the  Employee for dental and health
          insurance  premiums  required to be paid by the  Employee for such one
          (1) year  period to obtain  COBRA  continuation  coverage  within  the
          meaning of Section  4980B(f)(2) of the Internal  Revenue Code of 1986,
          as  amended  (the   "Code"),   provided   the  Employee   elects  such
          continuation  coverage,  and (ii)  cause  group  long-term  disability
          insurance  coverage  and  basic  term  life  insurance  coverage  then
          provided to the Employee by the Company,  if any, to be continued  for
          such one (1) year period (or, if such coverage  cannot be continued or
          can  only be  continued  at a cost to the  Company  greater  than  the
          Company  would have  incurred  absent such  termination,  then, at the
          Company's  election,  the Company may either  provide  such  long-term
          disability  or term life  insurance  as may be available at no greater
          cost than one hundred fifty  percent  (150%) of what the Company would
          have  incurred  absent such  termination  or pay to the  Employee  one
          hundred  fifty  percent  (150%) of the amount of premiums  the Company
          would have incurred to continue such

                                     - 5 -
<PAGE>

          coverage  absent such  termination)  (payments and benefits under this
          Subdivision (ii) of Section 7(a), collectively "Severance Benefits").

          (b) Termination of Severance Benefits. All Severance Benefits shall be
     discontinued  completely  as of the  date  when  the  Employee  returns  to
     employment or self-employment,  whether full- or part-time,  with an entity
     that  offers  any group  health  insurance  coverage  to its  employees  or
     independent contractors,  regardless of whether such coverage is equivalent
     to the insurance coverage contemplated by the Severance Benefits.

          (c) No Mitigation.  The Employee shall not be required to mitigate the
     amount of any payment or benefit  contemplated by this Section 7, nor shall
     any such  payment or benefit be reduced by earnings  or  benefits  that the
     Employee may receive from any other source.

     8. CHANGE IN CONTROL  PAYMENT,  SEVERANCE  PAYMENT AND  SEVERANCE  BENEFITS
        CONDITIONED UPON EXECUTION OF EFFECTIVE RELEASE OF CLAIMS.

     Notwithstanding any of the foregoing to the contrary, in no event shall the
Company be  required  to make any  payment or provide  any  benefit  pursuant to
Section 6 or 7 above (except for payments of accrued and unpaid vacation) unless
and until the  Employee  executes  and  delivers to the Company a release in the
form of Exhibit A, and such release  becomes  effective in  accordance  with its
terms;  provided,  however,  that pending such  execution and delivery of such a
release  by the  Employee,  the  Company  will  advance  for the  account of the
Employee  premiums  required  to be paid  during  the  period  during  which the
effectiveness of the release is pending if necessary to avoid lapse with respect
to the  Employee  within such  period of a group  dental,  health or  disability
policy to which Severance  Benefits  provided under  Subdivision (ii) of Section
7(a) relate,  which advance shall be repaid by the Employee on expiration of (i)
the period during which Employee is permitted to consider whether to execute the
release (if the Employee does not execute the release) or (ii) the period during
which the  effectiveness of the release is pending (if the Employee executes the
release).

     9. CERTAIN ADDITIONAL PAYMENTS.

     If any payments,  distributions or other benefits by or from the Company to
or for the benefit of the Employee  (whether paid or payable or  distributed  or
distributable  pursuant  to the  terms  of  this  Agreement  or  otherwise,  but
determined  without regard to any additional payment required under this Section
9)  (collectively,  the "Payment") would be subject to the excise tax imposed by
Section  4999 of the Code or any  interest  or  penalties  are  incurred  by the
Employee  with  respect to such excise tax (such excise tax,  together  with any
such interest and penalties,  are  hereinafter  collectively  referred to as the
"Excise  Tax"),  then the Employee shall be entitled to receive from the Company
an  additional  payment  (a  "Gross-Up  Payment")  in an amount  such that after
payment by the Employee of all taxes (including,  without limitation, any income
and  employment  taxes and any  interest  and  penalties  imposed  with  respect
thereto)  and the Excise Tax imposed  upon the  Gross-Up  Payment,  the Employee
retains an amount of the Gross-Up  Payment  equal to the Excise Tax imposed upon
the Payment.  All calculations  required by this Section 9 shall be performed by
the  independent  auditors  retained by the Company most  recently  prior to the
Change in Control (the "Auditors"), based on information supplied by the

                                     - 6 -
<PAGE>

Company and the Employee,  and shall be final and binding on the Company and the
Employee. All fees and expenses of the Auditors shall be paid by the Company.

     10. NONDISCLOSURE.

     During the term of this Agreement and  thereafter,  the Employee shall not,
without the prior written consent of the Board,  disclose or use for any purpose
(except in the course of his employment  under this Agreement and in furtherance
of the business of the Company) confidential  information or proprietary data of
the Company or any  parent,  subsidiary  or  affiliated  corporation  or related
entity of the Company, except as required by applicable law or legal process, in
which case promptly and before  disclosure the Employee shall give notice to the
Company of any such requirement or process; provided, however, that confidential
information shall not include any information available from another source on a
nonconfidential  basis,  known generally to the public,  or  ascertainable  from
public  or  published  information  (other  than  as a  result  of  unauthorized
disclosure  by  the  Employee)  or  any  information  of a  type  not  otherwise
considered  confidential  by  persons  engaged  in the same  business  as,  or a
business  similar to, that  conducted  by the Company.  The  Employee  agrees to
deliver to the Company at the  termination  of his  employment,  or at any other
time the Company may request, all memoranda,  notes, plans, records, reports and
other documents or electronic  information (and copies thereof)  relating to the
business of the Company or any parent,  subsidiary or affiliated  corporation or
related  entity of the  Company,  which he may then  possess  or have  under his
control.  Nothing in this  Section 10 or elsewhere  in this  Agreement  shall be
deemed to waive, or to permit or authorize the Employee to take any action which
waives or could have the consequence of waiving, the attorney-client  privilege,
the work product doctrine or any other privilege or doctrine with respect to any
information in the possession of the Employee or any  communication  between the
Employee and the Company,  its parent,  subsidiary and affiliated  corporations,
any related entities or any of their respective directors,  officers, employees,
agents or other representatives.

     11. MISCELLANEOUS PROVISIONS.

          (a)  Successors.  Subject to Section 11(j) below and provided that the
     Employee may not delegate his duties  hereunder  without the consent of the
     Board of Directors of the Company,  this Agreement and all rights hereunder
     shall  inure  to the  benefit  of,  and be  enforceable  by,  the  parties'
     successors,   assigns,   personal  or  legal  representatives,   executors,
     administrators, heirs, distributees, devisees and legatees.

          (b) Notice. Notices and all other communications  contemplated by this
     Agreement  shall be in writing  and shall be deemed to have been duly given
     when  personally  delivered,  when mailed by U.S.  registered  mail (return
     receipt requested and postage prepaid), or when telecopied.  In the case of
     the Employee,  mailed notices shall be addressed to him at the home address
     which he most  recently  communicated  to the Company in writing for income
     tax withholding purposes or by notice given pursuant to this Section 11(b).
     In the  case of the  Company,  mailed  notices  shall be  addressed  to its
     corporate  headquarters as reflected in its most recent Report on Form 10-Q
     or Form  10-K  filed  with the U.S.  Securities  and  Exchange  Commission,
     directed to the  attention of its  Secretary.  Telecopied  notices shall be
     sent to such  telephone  number as the Company and the Employee may specify
     for this purpose.

                                     - 7 -
<PAGE>

          (c) Waiver.  No provision of this Agreement shall be modified,  waived
     or discharged unless the modification,  waiver or discharge is agreed to in
     writing  and signed by the  Employee  and by an  authorized  officer of the
     Company (other than the Employee).  No waiver by either party of any breach
     of, or of compliance  with, any condition or provision of this Agreement by
     the other  party shall be  considered  a waiver of any other  condition  or
     provision or of the same condition or provision at another time.

          (d) Whole Agreement. No agreements,  representations or understandings
     (whether  oral or written  and whether  express or  implied)  which are not
     expressly  set forth in this  Agreement  have been made or entered  into by
     either party with respect to the subject matter hereof. Effective as of the
     date hereof, this Agreement supersedes all prior employment  agreements and
     severance agreements between the parties,  their parents,  subsidiaries and
     affiliates,  and  their  respective  predecessors  (but  not  that  certain
     Indemnification  Agreement  dated as of  December  17,  2001,  between  the
     Company and the Employee, which remains in full force and effect).

          (e)  Withholding.  All  payments  made under this  Agreement  shall be
     subject to reduction to reflect  taxes  required to be withheld by law. The
     Employee  hereby declares under penalty of perjury that his Social Security
     Number is  __________________.  To the extent  permitted by applicable law,
     the Company shall also be entitled to withhold  from or offset  against any
     payments under this Agreement any amounts owed by the Employee  (whether or
     not  liquidated)  to the Company or any parent,  subsidiary  or  affiliated
     corporation or related entity or either of them.

          (f)  Certain  Reductions  and  Offsets.   Notwithstanding   any  other
     provision of this Agreement to the contrary, any payments or benefits under
     this  Agreement  shall be reduced by any  severance  payments  and benefits
     payable by the Company or an affiliate of the Company to the Employee under
     any policy, plan, program or arrangement,  including, without limitation, a
     contract  between  the  Employee  and the  Company or an  affiliate  of the
     Company.

          (g) Choice of Law.  The  validity,  interpretation,  construction  and
     performance of this Agreement shall be governed by the internal laws of the
     State of California, without regard to where the Employee has his residence
     or principal office or where he performs his duties hereunder.

          (h) Severability.  The invalidity or unenforceability of any provision
     or  provisions  of  this  Agreement   shall  not  affect  the  validity  or
     enforceability  of any other provision  hereof,  which shall remain in full
     force and effect.

          (i) Arbitration. Except as otherwise provided in Section 9, and except
     for any  action  by the  Company  seeking  injunctive  relief  against  the
     Employee,  any  controversy  or claim  arising  out of or  relating to this
     Agreement,  or the breach  thereof,  or the Employee's  employment with the
     Company or the terms and conditions or termination  thereof,  or any action
     or omission of any kind whatsoever in the course of or connected in any way
     with any relations between the Company and the Employee,  including without
     limitation all claims  encompassed  within the scope of the form of General
     Release  attached to this Agreement as Exhibit A, shall be finally  settled
     by binding arbitration in accordance with the Commercial  Arbitration Rules
     of the American

                                     - 8 -
<PAGE>

     Arbitration  Association,  and  judgment  on  the  award  rendered  by  the
     arbitrator  may be entered in any court having  jurisdiction  thereof.  The
     arbitration shall be administered by the San Francisco, California regional
     office of such  Association  and shall be conducted  at the San  Francisco,
     California  offices of such  Association  or at such other  location in San
     Francisco,  California  as such  Association  may  designate.  All fees and
     expenses  of the  arbitrator  and  such  Association  shall  be paid by the
     Company.  The Company and the Employee  acknowledge  and agree that any and
     all rights they may have to resolve their claims by a jury trial are hereby
     expressly waived.

          (j) No  Assignment.  The rights of any person to  payments or benefits
     under this  Agreement  shall not be made  subject to option or  assignment,
     either by  voluntary  or  involuntary  assignment  or by  operation of law,
     including (without limitation) bankruptcy, garnishment, attachment or other
     creditor's process, and any action in violation of this Section 11(j) shall
     be void.

     IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the
case of the Company by its duly authorized officer, as of the day and year first
above written.

                                        ----------------------------------------
                                        MARK H. PERRY

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

                                        URS CORPORATION

                                        By:
                                           -------------------------------------
                                        Name:   Kent P. Ainsworth
                                        Title:  Executive Vice President and
                                                   Chief Financial Officer

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

                                     - 9 -
<PAGE>

                                    EXHIBIT A

                                 GENERAL RELEASE
                            (INDIVIDUAL TERMINATION)

     This General Release ("Release") is executed and delivered by MARK H. PERRY
("Employee") to and for the benefit of URS Corporation,  a Delaware corporation,
and any parent,  subsidiary or affiliated  corporation  or related entity of URS
Corporation (collectively, "Company").

     In  consideration  of certain  payments and benefits  which  Employee  will
receive  following  termination  of  employment  pursuant  to the  terms  of the
Employment Agreement entered into as December 17, 2001, between the Employee and
the  Company  (the  "Agreement"),  the  sufficiency  of  which  Employee  hereby
acknowledges,  Employee hereby agrees not to sue and fully, finally,  completely
and generally  releases,  absolves and  discharges  Company,  its  predecessors,
successors,  subsidiaries,  parents,  related  companies and business  concerns,
affiliates,   partners,  trustees,   directors,   officers,  agents,  attorneys,
servants,  representatives  and  employees,  past and present,  and each of them
(hereinafter  collectively  referred to as "Releasees") from any and all claims,
demands,  liens,  agreements,  contracts,  covenants,  actions, suits, causes of
action, grievances, arbitrations, unfair labor practice charges, wages, vacation
payments,  severance  payments,  obligations,  commissions,  overtime  payments,
workers  compensation claims,  debts, profit sharing or bonus claims,  expenses,
damages, judgments, orders and/or liabilities of whatever kind or nature in law,
equity or  otherwise,  whether known or unknown to Employee  which  Employee now
owns or holds or has at any time owned or held as against  Releasees,  or any of
them  through the date  Employee  executes  this Release  ("Claims"),  including
specifically  but not  exclusively  and without  limiting the  generality of the
foregoing,  any  and  all  Claims  arising  out of or in any  way  connected  to
Employee's  employment with or separation of employment  from Company  including
any  Claims  based on  contract,  tort,  wrongful  discharge,  fraud,  breach of
fiduciary duty, attorneys' fees and costs, discrimination in employment, any and
all acts or omissions in  contravention of any federal or state laws or statutes
(including,  but not limited to, federal or state securities laws, any deceptive
trades  practices  act or any similar  act in any other state and the  Racketeer
Influenced  and Corrupt  Organizations  Act), and any right to recovery based on
state or federal age, sex,  pregnancy,  race,  color,  national origin,  marital
status,  religion,  veteran  status,  disability,  sexual  orientation,  medical
condition,  union  affiliation  or other  anti-discrimination  laws,  including,
without  limitation,  Title VII, the Age  Discrimination  in Employment Act, the
Americans  with   Disabilities  Act,  the  National  Labor  Relations  Act,  the
California Fair Employment and Housing Act, and any similar act in effect in any
jurisdiction applicable to Employee or the Company, all as amended, whether such
claim be based upon an action  filed by  Employee or by a  governmental  agency;
provided,  however,  that,  expressly excluded from this Release are any and all
Claims Employee may have for indemnification under the Bylaws of the Company and
any Claims arising under the terms of the Indemnification  Agreement between URS
Corporation  and  Employee  dated as of  December  17,  2001 and any  amendment,
supplement or replacement thereof.

     During the time  Employee  is  entitled  to any Change in Control  Payment,
Severance Payment or Severance  Benefits,  as defined and provided in Sections 6
and 7 of the Agreement,

                                     - 1 -
<PAGE>

Employee  agrees (i) to assist,  as  reasonably  requested  by  Company,  in the
transition of Employee's  responsibilities  and (ii) not to solicit any employee
of Company to terminate or cease  employment with Company.  Without  superseding
any other agreements, including the Agreement, and obligations Employee has with
respect  thereto,  (i) Employee agrees not to divulge any information that might
be of a  confidential  or  proprietary  nature  relative  to  Company,  and (ii)
Employee agrees to keep  confidential all information  contained in this Release
(except to the extent  (A)  Company  consents  in  writing  to  disclosure,  (B)
Employee  is  required by process of law to make such  disclosure  and  Employee
promptly  notifies  Company of receipt by Employee of such process,  or (C) such
information previously shall have become publicly available other than by breach
hereof on the part of Employee).

     Employee  acknowledges and agrees that neither anything in this Release nor
the offer,  execution,  delivery, or acceptance thereof shall be construed as an
admission by Company of any kind,  and this Release  shall not be  admissible as
evidence in any proceeding except to enforce this Release.

     It is the intention of Employee in executing this  instrument that it shall
be effective as a bar to each and every claim,  demand,  grievance  and cause of
action hereinabove specified. In furtherance of this intention,  Employee hereby
expressly  consents  that this  Release  shall be given  full  force and  effect
according to each and all of its express terms and  provisions,  including those
relating to unknown and  unsuspected  claims,  demands and causes of action,  if
any, as well as those relating to any other claims, demands and causes of action
hereinabove specified,  and elects to assume all risks for claims that now exist
in Employee's  favor,  known or unknown,  that are released  under this Release.
Employee  acknowledges  Employee may hereafter discover facts different from, or
in addition to, those  Employee now knows or believes to be true with respect to
the claims, demands, liens, agreements,  contracts,  covenants,  actions, suits,
causes of action,  wages,  obligations,  debts,  expenses,  damages,  judgments,
orders and liabilities  herein released,  and agrees the release herein shall be
and remain in effect in all respects as a complete and general release as to all
matters released herein, notwithstanding any such different or additional facts.

     If any  provision of this Release or  application  thereof is held invalid,
the invalidity  shall not affect other provisions or applications of the Release
which can be given effect without the invalid provision or application.  To this
end, the provisions of this Release are severable.

     Employee  represents and warrants that Employee has not heretofore assigned
or  transferred  or  purported  to assign or  transfer  to any  person,  firm or
corporation any claim, demand, right, damage, liability,  debt, account, action,
cause of action, or any other matter herein released.

     Employee  represents  that he is not  aware of any  claims  other  than the
claims that are released by this instrument.  Employee  acknowledges  that he is
familiar with the provisions of California Civil Code Section 1542, which states
as follows:

          A general  release does not extend to claims  which the creditor  does
          not know or suspect to exist in his favor at the time of executing the
          release,  which  if known by him must  have  materially  affected  his
          settlement with the debtor.

                                     - 2 -
<PAGE>

Employee,  being aware of such Code  section,  agrees to waive any rights he may
have  thereunder,  as well as under any other statute or common law principle of
similar effect.

                               NOTICE TO EMPLOYEE

     The law  requires  that  Employee  be advised and  Company  hereby  advises
Employee in writing to consult with an attorney and discuss this Release  before
executing it.  Employee  acknowledges  Company has provided to Employee at least
twenty-one (21) calendar days  (forty-five  (45) calendar days, in the case of a
group  termination)  within  which to review and consider  this  Release  before
signing it.

     Should  Employee  decide not to use the full  twenty-one (21) or forty-five
(45) days, as applicable,  then Employee  knowingly and  voluntarily  waives any
claims  that  Employee  was not in fact given that period of time or did not use
the entire twenty-one (21) or forty-five (45) days to consult an attorney and/or
consider  this  Release.  Employee  acknowledges  that  Employee may revoke this
Release for up to seven (7) calendar days following Employee's execution of this
Release  and that it shall  not  become  effective  or  enforceable  until  such
revocation  period has expired.  Employee  further  acknowledges and agrees that
such  revocation  must be in writing and delivered to Company in accordance with
Section  11(b) of the  Agreement and must be received by Company as so addressed
not later than midnight on the seventh (7th) day following  Employee's execution
of this Release.  If Employee so revokes this Release,  the Release shall not be
effective or  enforceable  and Employee will not receive the monies and benefits
described  above.  If Employee  does not revoke  this  Release in the time frame
specified  above,  the Release  shall become  effective at 12:00:01  A.M. on the
eighth (8th) day after it is signed by Employee.

     In the case of a group  termination,  the law  requires  that  Employee  be
provided a detailed  list of the job titles and ages of all  employees  who were
terminated in the group termination and the ages of all employees of the Company
in the same job  classification or organizational  unit who were not terminated.
Employee acknowledges that Employee has been provided with this information.

                PLEASE READ CAREFULLY. THIS AGREEMENT CONTAINS A
                GENERAL RELEASE OF ALL KNOWN AND UNKNOWN CLAIMS.

     I have read and understood the foregoing General Release, have been advised
to and have had the opportunity to discuss it with anyone I desire, including an
attorney  of my own  choice,  and I accept and agree to its  terms,  acknowledge
receipt of a copy of the same and the  sufficiency  of the  monies and  benefits
described  above,  and hereby  execute  this Release  voluntarily  and with full
understanding of its consequences.

Dated:                                  ----------------------------------------
      ----------------------            MARK H. PERRY

                                     - 3 -

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