EXHIBIT 99.1


         NORTH BAY BANCORP 2002 STOCK OPTION PLAN AND RELATED AGREEMENTS









                                      -11-







                    NORTH BAY BANCORP 2002 STOCK OPTION PLAN





Adopted by the North Bay Bancorp Board of Directors on February 25, 2002




Approved by the Shareholders of North Bay Bancorp on April 30, 2002






                                                 TABLE OF CONTENTS



1.       PURPOSE...............................................................1


2.       DEFINITIONS...........................................................1

         (a)      "Affiliate" shall mean.......................................1

         (b)      "Board of Directors".........................................1

         (c)      "Code".......................................................1

         (d)      "Committee"..................................................1

         (e)      "Company"....................................................1

         (f)      "Effective Date".............................................1

         (g)      "Employee"...................................................1

         (h)      "Exchange Act"...............................................2

         (i)      "Exercise Price".............................................2

         (j)      "Fair Market Value"..........................................2

         (k)      "ISO"........................................................2

         (l)      "Nonstatutory Option"........................................2

         (m)      "Option".....................................................2

         (n)      "Optionee"...................................................2

         (o)      "Payroll Employee"...........................................2

         (p)      "Permanent and Total Disability".............................3

         (r)      "Plan".......................................................3

         (s)      "Service"....................................................3

         (t)      "Share"......................................................3

         (u)      "Stock"......................................................3


                                        I


         (v)      "Stock Option Agreement".....................................3

         (w)      "Substitute Option"..........................................3

         (x)      "Terminating Event"..........................................3

         (y)      "Vesting Event"..............................................4


3.       ADMINISTRATION........................................................4

         (a)      Committee Membership.........................................4

         (b)      Committee Procedures.........................................4

         (c)      Committee Responsibilities...................................5


4.       ELIGIBILITY...........................................................5

         (a)      General Rules................................................6

         (b)      Ten-Percent Stockholders.....................................6

         (c)      Attribution Rules............................................6

         (d)      Outstanding Stock............................................6


5.       STOCK SUBJECT TO PLAN.................................................6

         (a)      Basic Limitation.............................................6

         (b)      Additional Shares............................................7


6.       TERMS AND CONDITIONS OF OPTIONS.......................................7

         (a)      Stock Option Agreement.......................................7

         (b)      Number of Shares.............................................7

         (c)      Exercise Price...............................................7

         (d)      Withholding Taxes............................................7

         (e)      Exercisability...............................................8

         (f)      Term.........................................................8


                                       II


         (g)      Transferability..............................................9

         (h)      No Rights as a Shareholder...................................9

         (i)      Modification, Extension and Renewal of Options...............9

         (j)      Substitute Options..........................................10


7.       PAYMENT FOR SHARES...................................................10

         (a)      General Rule................................................10

         (b)      Surrender of Stock..........................................10

         (c)      Exercise/Sale...............................................10

         (d)      Exercise/Pledge.............................................11

         (e)      Withholding Taxes...........................................11


8.       ADJUSTMENT UPON CHANGES IN CAPITALIZATION............................11

         (a)      Adjustments Upon Changes in Capitalization..................11

         (b)      Reservation of Rights.......................................11


9.       TERMINATING EVENTS...................................................12


10.      SECURITIES LAWS......................................................12


11.      NO RETENTION RIGHTS..................................................13


12.      DURATION AND AMENDMENTS..............................................13

         (a)      Term of the Plan............................................13

         (b)      Right to Amend or Terminate the Plan........................13

         (c)      Effect of Amendment or Termination..........................13


                                       III



                    NORTH BAY BANCORP 2002 STOCK OPTION PLAN

1. PURPOSE.  The purpose of the Plan is to offer selected  employees,  directors
and consultants an opportunity to acquire a proprietary  interest in the success
of the  Company,  or to increase  such  interest,  by  purchasing  Shares of the
Company's  Common Stock.  The Plan  provides both for the grant of  Nonstatutory
Options as well as Incentive Stock Options intended to qualify under Section 422
of the Code.

2. DEFINITIONS.

     (a)  "Affiliate"  shall  mean  any  corporation,   partnership  or  limited
liability  company which controls,  is controlled by, or is under common control
with, the Company. A corporation,  partnership or limited liability company that
attains  the status of an  Affiliate  on a date after the  adoption  of the Plan
shall be considered an Affiliate commencing as of such date.

     (b) "Board of Directors"  shall mean the Board of Directors of the Company,
as constituted from time to time.

     (c) "Code" shall mean the Internal Revenue Code of 1986, as amended.

     (d)  "Committee"  shall  mean a  committee  of the Board of  Directors,  as
described in Section 3(a),  or in the absence of such a committee,  the Board of
Directors.

     (e) "Company" shall mean North Bay Bancorp, a California corporation.

     (f) "Effective  Date" shall mean the earlier of the date of adoption of the
Plan by the Board of Directors of the Company or the approval of the Plan by the
shareholders  of the  Company  in  the  manner  required  by  applicable  law or
regulation.

     (g) "Employee" shall mean:

          (i) Any  individual  who is a full- or  part-time  salaried  or hourly
     employee (i.e.,  paid in accordance with normal payroll  procedures) of the
     Company or of an Affiliate (a "Payroll Employee");

          (ii) A member  of the Board of  Directors  or a member of the Board of
     Directors of any Affiliate; and

          (iii) An independent  contractor who performs services for the Company
     or an Affiliate and who is not a member of the Board of Directors.

Service as an independent  contractor or member of the Board of Directors  shall
be  considered  employment  for all purposes of the Plan,  except as provided in
Section 4(a).


                                       1


     (h)  "Exchange  Act" shall mean the  Securities  Exchange  Act of 1934,  as
amended.

     (i)  "Exercise  Price"  shall  mean the  amount  for which one Share may be
purchased  upon  exercise of an Option,  as  specified  by the  Committee in the
applicable Stock Option Agreement.

     (j) "Fair Market Value" shall mean the market price of Stock, determined by
the Committee as follows:

          (i) If Stock was traded  over-the-counter  on the date in question but
     was not traded on the NASDAQ system or the NASDAQ  National  Market System,
     then the Fair  Market  Value  shall be equal to the mean  between  the last
     reported  representative  bid and asked prices  quoted for such date by the
     principal automated  inter-dealer quotation system on which Stock is quoted
     or,  if Stock  is not  quoted  on any such  system,  by the  "Pink  Sheets"
     published by the National Quotation Bureau, Inc.;

          (ii) If Stock was traded  over-the-counter on the date in question and
     was traded on the NASDAQ system or the NASDAQ National Market System,  then
     the Fair Market Value shall be equal to the last  transaction  price quoted
     for such date by the NASDAQ system or the NASDAQ National Market System;

          (iii) If Stock was traded on a stock exchange on the date in question,
     then the Fair Market Value shall be equal to the closing price  reported by
     the applicable composite transactions report for such date; and

          (iv) If none of the foregoing provisions is applicable,  then the Fair
     Market  Value shall be  determined  by the  Committee in good faith on such
     basis as it deems  appropriate.  In all cases,  the  determination  of Fair
     Market  Value by the  Committee  shall be  conclusive  and  binding  on all
     persons.

     (k) "ISO"  shall mean an  employee  incentive  stock  option  described  in
Section 422(b) of the Code.

     (l)  "Nonstatutory  Option"  shall  mean a stock  option not  described  in
Sections 422(b) or 423(b) of the Code.

     (m) "Option"  shall mean an ISO or  Nonstatutory  Option  granted under the
Plan and entitling the holder to purchase Shares.

     (n) "Optionee" shall mean an individual who holds an Option.

     (o) "Payroll  Employee"  shall have the meaning  ascribed in paragraph  (f)
hereof.

                                       2


     (p)  "Permanent  and Total  Disability"  shall  mean as  defined in Section
22(e)(3) of the Code.

     (q) "Person" shall mean a natural person, firm, association,  organization,
partnership,  business trust, corporation,  limited liability company, or public
entity.

     (r) "Plan" shall mean this North Bay Bancorp 2002 Stock Option Plan,  as it
may be amended from time to time.

     (s) "Service" shall mean service as an Employee.

     (t) "Share" shall mean one share of Stock,  as adjusted in accordance  with
Section 8 (if applicable).

     (u) "Stock" shall mean the Common Stock of the Company.

     (v) "Stock Option  Agreement" shall mean the agreement  between the Company
and an Optionee which contains the terms, conditions and restrictions pertaining
to his or her Option.

     (w) "Substitute Option" shall mean an option described in Section 6(j).

     (x)  "Terminating  Event" shall mean the occurrence of any of the following
events:

          (i) the  consummation  of a plan of  dissolution or liquidation of the
     Company;

          (ii)  the  consummation  of  a  plan  of  reorganization,   merger  or
     consolidation involving the Company, except for a reorganization, merger or
     consolidation  where (A) the shareholders of the Company  immediately prior
     to such reorganization,  merger or consolidation own directly or indirectly
     at  least  50% of the  combined  voting  power  of the  outstanding  voting
     securities of the corporation resulting from such reorganization, merger or
     consolidation  (the  "Surviving  Corporation")  in  substantially  the same
     proportion  as  their  ownership  of  voting   securities  of  the  Company
     immediately prior to such  reorganization,  merger or consolidation and the
     individuals who were members of the Board of Directors immediately prior to
     the execution of the agreement providing for such reorganization, merger or
     consolidation  constitute  at  least  50% of the  members  of the  board of
     directors  of the  Surviving  Corporation,  or a  corporation  beneficially
     directly or  indirectly  owning a majority of the voting  securities of the
     Surviving  Corporation,  or (B)  the  Company  is  reorganized,  merged  or
     consolidated  with a corporation in which any  shareholder  owning at least
     50% of the combined  voting power of the outstanding  voting  securities of
     the  Company   immediately   prior  to  such   reorganization,   merger  or
     consolidation,  owns at  least  50% of the  combined


                                       3


     voting  power  of the  outstanding  voting  securities  of the  corporation
     resulting from such reorganization, merger or consolidation.

          (iii)  the  sale  of all or  substantially  all of the  assets  of the
     Company to another Person;

          (iv) the  acquisition  of beneficial  ownership of stock  representing
     more than fifty  percent  (50%) of the  voting  power of the  Company  then
     outstanding by another Person.

     (y)  "Vesting  Event" shall mean the  approval by the  shareholders  of the
Company of any matter,  plan or transaction which would constitute a Terminating
Event,  or if any Terminating  Event occurs without  shareholder  approval,  the
occurrence of such Terminating Event.

3.       ADMINISTRATION.

     (a) Committee  Membership.  The Board of Directors shall have the authority
to  administer  the Plan but may  delegate its  administrative  powers under the
Plan, in whole or in part, to one or more  committees of the Board of Directors.
With respect to the  participation of Employees who are subject to Section 16 of
the Exchange Act, the Plan may be administered by a committee composed solely of
two or more  members  of the Board of  Directors  who  qualify  as  "nonemployee
directors" as defined in Securities and Exchange Commission Rule 16b-3 under the
Exchange  Act.  With  respect  to the  participation  of  Employees  who  may be
considered "covered employees" under Section 162(m) of the Code, the Plan may be
administered by a committee  composed solely of two or more members of the Board
of  Directors  who qualify as  "outside  directors"  as defined by the  Internal
Revenue  Service for plans  intended to qualify for an exemption  under  Section
162(m)(4)(C)   of  the  Code.   If  the   committee   members   meet  both  such
qualifications,  then one committee may administer the Plan both with respect to
Employees  who  are  subject  to  Section  16 of the  Exchange  Act  or who  are
considered to be "covered employees" under Section 162(m) of the Code. The Board
of Directors may appoint a separate committee, consisting of one or more members
of the Board of Directors who do not meet such  qualifications.  Such  committee
may  administer  the Plan with respect to Employees  who are not officers of the
Company or members of the Board of  Directors,  may grant Options under the Plan
to such Employees and may determine the timing, number of Shares and other terms
of such grants.

     (b) Committee  Procedures.The Board of Directors shall designate one of the
members of any Committee  appointed  under  paragraph (a) as chairman.  Any such
Committee may hold meetings at such times and places as it shall determine.  The
acts of a majority  of the  Committee  members  present at  meetings  at which a
quorum  exists,  or acts  reduced to or  approved  in  writing by all  Committee
members, shall be valid acts of the Committee.


                                       4


     (c) Committee Responsibilities.  Subject to the provisions of the Plan, any
such  Committee  shall have full  authority and discretion to take the following
actions:

          (i) To interpret the Plan and to apply its provisions;

          (ii) To adopt,  amend or rescind rules,  procedures and forms relating
     to the Plan;

          (iii) To  authorize  any person to execute,  on behalf of the Company,
     any instrument required to carry out the purposes of the Plan;

          (iv) To determine when Options are to be granted under the Plan;

          (v) To select the Optionees;

          (vi) To  determine  the  number of Shares to be made  subject  to each
     Option;

          (vii) To prescribe the terms and conditions of each Option,  including
     (without  limitation) the Exercise Price, to determine  whether such Option
     is to be classified as an ISO or as a Nonstatutory  Option,  and to specify
     the provisions of the Stock Option Agreement relating to such Option;

          (viii) To amend any  outstanding  Stock Option  Agreement,  subject to
     applicable  legal  restrictions  and to the  consent  of the  Optionee  who
     entered into such agreement;

          (ix) To prescribe the consideration for the grant of each Option under
     the Plan and to determine the sufficiency of such consideration; and

          (x) To take any other  actions  deemed  necessary or advisable for the
     administration of the Plan.

Notwithstanding  the foregoing,  the Committee shall annually deliver  financial
statements  of the Company to all Optionees to whom such delivery is required by
Section  260.140.46 of the California Code of Regulations,  or successor statute
or regulation.

All decisions, interpretations and other actions of the Committee shall be final
and binding on all  Optionees,  and all persons  deriving  their  rights from an
Optionee.  No member of the Committee  shall be liable for any action that he or
she has taken or has failed to take in good  faith  with  respect to the Plan or
any Option.


                                       5


4.   ELIGIBILITY.

     (a) General  Rules.  Only  Employees  shall be eligible for  designation as
Optionees by the Committee.  In addition,  only Payroll Employees of the Company
or an Affiliate shall be eligible for the grant of ISOs.

     (b) Ten-Percent Stockholders.  An Employee who owns more than 10 percent of
the total  combined  voting  power of all  classes of  outstanding  stock of the
Company or any of its Subsidiaries shall not be eligible for the grant of an ISO
unless:

          (i) The  Exercise  Price is at least 110  percent  of the Fair  Market
     Value of a Share on the date of grant; and

          (ii) Such ISO by its terms is not exercisable  after the expiration of
     five years from the date of grant.

     (c) Attribution Rules. For purposes of Subsection (b) above, in determining
stock ownership, an Employee shall be deemed to own the stock owned, directly or
indirectly,  by or for such Employee's brothers,  sisters, spouse, ancestors and
lineal  descendants.   Stock  owned,  directly  or  indirectly,   by  or  for  a
corporation,   partnership,  estate  or  trust  shall  be  deemed  to  be  owned
proportionately  by or for its stockholders,  partners or  beneficiaries.  Stock
with respect to which such Employee holds an option shall not be counted.

     (d) Outstanding  Stock. For purposes of Subsection (b) above,  "outstanding
stock" shall include all stock actually issued and outstanding immediately after
the grant.  "Outstanding stock" shall not include shares authorized for issuance
under outstanding options held by the Employee or by any other person.

5.   STOCK SUBJECT TO PLAN.

     (a) Basic Limitation. Shares reserved for issuance pursuant to the exercise
of Options  granted  under the Plan shall be  authorized  but  unissued  Shares.
Subject to the  provisions of Section 8 of this Plan,  the  aggregate  number of
Shares which may be issued pursuant to the exercise of Options granted under the
Plan shall be 235,000,  all of which may be issued  pursuant to the  exercise of
ISOs or Nonstatutory  Options granted under the Plan. Except as provided in this
Section,  in no event  shall  options  be granted  for a number of Shares  which
exceeds the number of Shares  reserved for issuance under the Plan. The Company,
during  the term of the Plan,  shall at all  times  reserve  and keep  available
sufficient  Shares to satisfy the requirements of the Plan. At no time shall the
total number of Shares issuable upon exercise of all outstanding Options and the
total number of Shares provided for under any stock bonus or similar plan of the
Company  exceed  thirty  percent  (30%) of the then  outstanding  Shares  of the
Company's  Common  Stock,  calculated  in  accordance  with the  conditions  and
exclusions  of  Rule  260.140.45  of the  California  Code  of  Regulations,  or
successor statute or regulation.


                                       6


     (b) Additional  Shares.  In the event that any  outstanding  option granted
under this Plan,  including  Substitute  Options,  for any reason  expires or is
canceled  or  otherwise  terminated,  the Shares  allocable  to the  unexercised
portion of such option shall become  available for the purposes of this Plan. In
addition,  any  authorized  shares not issued or subject to  outstanding  grants
under the  Company's  1993 Stock Option Plan (the "Prior Plan") on the Effective
Date  and any  shares  issued  under  the  Prior  Plan  that  are  forfeited  or
repurchased by the Company or that are issuable upon exercise of options granted
pursuant  to the Prior Plan that expire or become  unexercisable  for any reason
without having been exercised in full, will no longer be available for grant and
issuance  under the Prior Plan,  but will be  available  for grant and  issuance
under this Plan.

6.   TERMS AND CONDITIONS OF OPTIONS.

     (a) Stock Option Agreement. Each grant of an Option under the Plan shall be
evidenced by a Stock Option Agreement  executed by the Optionee and the Company.
Such Option shall be subject to all applicable  terms and conditions of the Plan
and may be subject to any other terms and conditions  which are not inconsistent
with the Plan and which the Committee deems appropriate for inclusion in a Stock
Option Agreement.  The provisions of the various Stock Option Agreements entered
into under the Plan need not be identical.

     (b) Number of Shares.  Each Stock Option Agreement shall specify the number
of Shares that are subject to the Option and shall provide for the adjustment of
such number in accordance with Section 8. The Stock Option  Agreement shall also
specify  whether the Option is an ISO or a Nonstatutory  Option.  For so long as
the Code shall so provide,  Options  granted to any Payroll  Employee  under the
Plan ( and any other  incentive  stock option  plans of the  Company)  which are
intended to constitute  ISOs shall not  constitute  ISOs to the extent that such
Options,  in the aggregate,  become exercisable for the first time in any one(1)
calendar  year  for  shares  of  Stock  with  an  aggregate  fair  market  value
(determined as of the respective date or dates of grant) of more than $100,000.

     (c) Exercise Price.  Each Stock Option Agreement shall specify the exercise
Price. The Exercise Price of an Option shall not be less than 100 percent of the
Fair Market Value of a Share on the date of grant,  except as otherwise provided
in Section 4(b) with respect to ISOs and Section 6(i) with respect to Substitute
Options. The Exercise Price shall be payable in a form described in Section 7.

     (d)  Withholding  Taxes.  As a condition to the exercise of an Option,  the
Optionee  shall make such  arrangements  as the  Committee  may  require for the
satisfaction of any federal, state, local or foreign withholding tax obligations
that arise in connection  with such exercise.  The Optionee shall also make such
arrangements  as the Committee may require for the  satisfaction of any federal,
state, local or foreign withholding tax obligations that may arise in connection
with the disposition of Shares  acquired by exercising an Option.  The Committee
may permit the  Optionee  to satisfy  all or part of


                                       7


his or her tax obligations  related to the Option by having the Company withhold
a  portion  of any  Shares  that  otherwise  would be issued to him or her or by
surrendering any Shares that previously were acquired by him or her. Such Shares
shall be valued at their  Fair  Market  Value on the date when  taxes  otherwise
would be  withheld  in cash.  The  payment of taxes by  assigning  Shares to the
Company, if permitted by the Committee, shall be subject to such restrictions as
the Committee may impose.

     (e) Exercisability. Each Stock Option Agreement shall specify the date when
all or any  installment of the Option is to become  exercisable.  The vesting of
any Option shall be determined by the Committee in its sole discretion; provided
however, that:

          (i) Upon the  occurrence of a Vesting  Event,  the Option shall become
     immediately exercisable as to all Shares covered by such Option, whether or
     not previously vested;

          (ii) In the event that an Optionee's  Service  terminates,  the Option
     shall be  exercisable  only to the  extent  the Option was vested as of the
     date of such  termination,  unless  otherwise  specified in the  Optionee's
     Stock Option Agreement; and

          (iii) Options granted to Payroll  Employees other than officers of the
     Company shall vest at the rate of at least 20 percent of the shares subject
     thereto per year over five (5) years from the date of grant of the Option.

     (f) Term. Each Stock Option Agreement shall specify the term of the Option.
No Option shall have a term  exceeding 10 years from the date of grant.  Subject
to the preceding sentence,  the Committee in its sole discretion shall determine
when  an  Option  is to  expire.  In  the  event  that  the  Optionee's  Service
terminates:

          (i) As a result  of such  Optionee's  death  or  Permanent  and  Total
     Disability,  the term of the Option  shall  expire  twelve  months (or such
     other period specified in the Optionee's Stock Option Agreement) after such
     death or  Permanent  and Total  Disability  but not later than the original
     expiration date specified in the Stock Option Agreement provided,  however,
     that the  expiration of the term of a  Nonstatutory  Option may be extended
     for such  further  period as the  Committee,  in its sole  discretion,  may
     determine,  to a date not later than the original expiration date specified
     in the Stock Option Agreement.

          (ii) As a result of termination of the Employee's  employment with the
     Company (by  resignation  or otherwise)  for cause,  the term of the Option
     shall expire  immediately upon such termination  (notice or advice of which
     shall  subsequently  be given by the Company),  and thereafter  neither the
     Employee nor the Employee's estate shall be entitled to exercise the Option
     with  respect  to  any  Shares  whatsoever,   whether  or  not  after  such
     termination  the Employee may receive payment from the Company for vacation
     pay, for services  rendered prior


                                       8


     to termination, for services for the day on which termination occurred, for
     salary in lieu of notice or for other benefits.  For purposes of this Plan,
     "cause" shall mean an act of embezzlement,  fraud,  dishonesty or breach of
     fiduciary duty to the Company or its shareholders, disclosure of any of the
     secrets or confidential  information of the Company,  the inducement of any
     client or customer of the Company to break any  contract  with the Company,
     or the  inducement  of any  principal for whom the Company acts as agent to
     terminate  such agency  relationship,  the  engagement of any conduct which
     constitutes  unfair  competition with the Company,  the removal of Optionee
     from office by any court or bank regulatory  agency,  or such other similar
     acts  which  the  Committee  in its  discretion  reasonably  determines  to
     constitute adequate cause for termination of Optionee's Service. As used in
     this Paragraph (ii), Company includes Affiliates of the Company.

          (iii) As a result of  termination  for any reason other than Permanent
     and Total  Disability,  death or cause, the term of the Option shall expire
     three months (or such other period specified in the Optionee's Stock Option
     Agreement)  after  such  termination,  but  not  later  than  the  original
     expiration date specified in the Stock Option Agreement provided,  however,
     that the  expiration of the term of a  Nonstatutory  Option may be extended
     for such  further  period as the  Committee,  in its sole  discretion,  may
     determine,  to a date not later than the original expiration date specified
     in the Stock Option Agreement.

     (g) Transferability. During an Optionee's lifetime, such Optionee's Options
shall be exercisable only by him or her and shall not be transferable. An Option
shall  not be  transferable  other  than by will or by the laws of  descent  and
distribution; provided, however, that Nonstatutory options may be transferred by
instrument to an inter vivos or  testamentary  trust in which the options are to
be passed to beneficiaries upon the death of the trustor/settlor,  or by gift to
"immediate  family,"  as that  term is  defined  in 17  C.F.R.  240.16a-1(e)  or
successor statute or regulation thereto.

     (h)  No  Rights  as a  Shareholder.  An  Optionee,  or a  transferee  of an
Optionee,  shall  have no rights as a  shareholder  with  respect  to any Shares
covered  by his or her  Option  until  the  date  of  the  issuance  of a  stock
certificate for such Shares. No adjustments shall be made, except as provided in
Section 8.

     (i) Modification,  Extension and Renewal of Options. Within the limitations
of the Plan, the Committee may modify,  extend or renew  outstanding  Options or
may accept the cancellation of outstanding Options (to the extent not previously
exercised)  in return for the grant of new  Options  at the same or a  different
price.  The  foregoing  notwithstanding,  no  modification  of an Option  shall,
without the consent of the Optionee,  impair such Optionee's  rights or increase
his or her obligations under such Option.


                                       9


     (j)  Substitute  Options.  If the Company at any time should succeed to the
business of another corporation through merger or consolidation,  or through the
acquisition of stock or assets of such corporation, Options may be granted under
the Plan in substitution of options  previously  granted by such  corporation to
purchase  shares of its stock which options are  outstanding  at the date of the
succession  ("Surrendered  Options").  The  Committee  shall have  discretion to
determine  the extent to which such  Substitute  Options  shall be granted,  the
persons to receive such Substitute  Options,  the number of Shares to be subject
to such  Substitute  Options,  and the terms and  conditions of such  Substitute
Options which shall, to the extent  permissible  within the terms and conditions
of the  Plan,  be  equivalent  to the terms and  conditions  of the  Surrendered
Options.  The exercise  Price may be determined  without regard to Section 6(c);
provided however,  that the Exercise Price of each Substitute Option shall be an
amount such that, in the sole and absolute judgment of the Committee (and if the
Substitute  Options are to be ISO's,  in compliance  with Section  424(a) of the
Code), the economic  benefit  provided by such Substitute  Option is not greater
than the economic benefit  represented by the Surrendered  Option as of the date
of the succession.

7.   PAYMENT FOR SHARES.

     (a) General Rule. The entire Exercise Price of Shares issued under the Plan
shall be payable in lawful  money of the United  States of America in cash or by
certified check,  official bank check, or the equivalent  thereof  acceptable to
the Company at the time when such Shares are purchased, except as follows:

          (i) ISOs. In the case of an ISO granted under the Plan,  payment shall
     be made only  pursuant to the express  provisions of the  applicable  Stock
     Option  Agreement.  However,  the  Committee (in its sole  discretion)  may
     specify in the Stock Option  Agreement that payment may be made pursuant to
     Subsections (b), (c) or (d) below.

          (ii)  Nonstatutory  Options.  In the  case  of a  Nonstatutory  Option
     granted under the Plan, the Committee (in its sole  discretion)  may accept
     payment pursuant to Subsections (b), (c), or (d) below.

     (b)  Surrender  of  Stock.  To  the  extent  that  this  Subsection  (b) is
applicable,  payment may be made all or in part with Shares  which have  already
been owned by the Optionee or his or her  representative  for more than 6 months
and which are surrendered to the Company in good form for transfer.  Such Shares
shall be valued at their Fair  Market  Value on the date when the new Shares are
purchased under the Plan.

     (c)  Exercise/Sale.  To the extent that this  Subsection (c) is applicable,
payment may be made by the delivery (on a form  prescribed by the Company) of an


                                       10


irrevocable  direction  to a securities  broker  approved by the Company to sell
Shares  and to  deliver  all or part of the sales  proceeds  to the  Company  in
payment of all or part of the Exercise Price and any withholding taxes.

     (d) Exercise/Pledge.  To the extent that this Subsection (d) is applicable,
payment may be made by the delivery (on a form  prescribed by the Company) of an
irrevocable direction to pledge Shares to a securities broker or lender approved
by the Company,  as security for a loan,  and to deliver all or part of the loan
proceeds to the Company in payment of all or part of the exercise  Price and any
withholding taxes.

     (e) Withholding  Taxes.  The Company shall have the right upon the exercise
of an option to deduct any sums required to be withheld under federal,  state or
local tax laws or regulations.  The Company may condition the issuance of Shares
upon  exercise  of any  Option  upon the  payment  by the  Optionee  of any sums
required to be withheld under applicable laws or regulations. The Company has no
duty to advise any Optionee of the existence of any tax or any amounts which may
be withheld.

8.   ADJUSTMENT UPON CHANGES IN CAPITALIZATION.

     (a) Adjustments Upon Changes in  Capitalization.  If the outstanding shares
of Stock are increased,  decreased, or changed into or exchanged for a different
number or kind of shares or securities of the Company, through a reorganization,
merger,  recapitalization,  reclassification,  stock split, reverse stock split,
stock dividend, stock consolidation,  or otherwise, without consideration to the
Company, an appropriate and proportionate adjustment shall be made in the number
and kind of Shares as to which Stock  Options may be  granted.  A  corresponding
adjustment  changing  the number or kind of Shares  subject  to Options  and the
exercise price per Share allocated to unexercised  Options, or portions thereof,
which shall have been granted prior to any such change,  shall likewise be made.
Any such  adjustment,  however,  in an outstanding  Option shall be made without
change in the total price  applicable to the unexercised  portion of the Option,
but with a  corresponding  adjustment in the price for each Share subject to the
Option. Any adjustment under this Section shall be made by the Committee,  whose
determination  as to what  adjustments  shall be made,  and the extent  thereof,
shall be final and conclusive.  No fractional shares of Stock shall be issued or
made available under the Plan on account of any such adjustment,  and fractional
share interests shall be disregarded and the fractional  share interest shall be
rounded down to the nearest whole number.

     (b)  Reservation  of  Rights.  Except as  provided  in this  Section  8, an
Optionee shall have no rights by reason of any subdivision or  consolidation  of
shares of stock of any class,  the payment of any dividend or any other increase
or  decrease  in the  number of shares of stock of any  class.  Any issue by the
Company of shares of stock of any class, or securities  convertible  into shares
of stock of any class,


                                       11


shall not affect, and no adjustment by reason thereof shall be made with respect
to, the number or Exercise Price of Shares subject to an Option. The grant of an
Option  pursuant  to the Plan  shall not affect in any way the right or power of
the Company to make adjustments,  reclassifications,  reorganizations or changes
of its capital or business  structure,  to merge or  consolidate or to dissolve,
liquidate, sell or transfer all or any part of its business or assets.

9.   TERMINATING EVENTS.

     Not less than thirty  (30) days prior to the  occurrence  of a  Terminating
Event,  the Committee or the Board shall notify each Optionee of the pendency of
the Terminating  Event.  Upon the effective date of the Terminating  Event,  the
Plan shall  automatically  terminate and all Options  theretofore  granted shall
terminate,  unless provision is made in connection with such transaction for the
continuance of the Plan and/or  assumption of Options  theretofore  granted,  or
substitution  for  such  Options  with new  stock  options  covering  stock of a
successor corporation,  or a parent or subsidiary corporation thereof, solely at
the   discretion  of  such   successor   corporation  or  parent  or  subsidiary
corporation,  with  appropriate  adjustments as to number and kind of shares and
prices, in which event the Plan and Options  theretofore  granted shall continue
in the  manner  and  under the terms so  provided.  If the Plan and  unexercised
Options shall terminate  pursuant to the preceding  sentence,  all persons shall
have the right to exercise the Options  then  outstanding  and not  exercised at
such time prior to the consummation of the transaction  causing such termination
as the Company  shall  designate,  unless the Board shall have  provided for the
cancellation  of such Options in exchange for a cash payment equal to the excess
of the Fair Market  Value of the Stock as of the date of the  Terminating  Event
over the exercise price of such Options.

10.      SECURITIES LAWS.

     Shares  shall not be issued under the Plan unless the issuance and delivery
of such Shares complies with (or is exempt from) all applicable  requirements of
law, including (without  limitation) the Securities Act of 1933, as amended, the
rules  and  regulations  promulgated  thereunder,   state  securities  laws  and
regulations,  and the  regulations  of any stock exchange on which the Company's
securities may then be listed.

     Upon the grant of an Option  under this Plan,  or upon the  exercise of any
Option  granted under this Plan,  the Company may require an Optionee to sign an
investment  covenant  to the  effect  that such  Option  and such  Stock will be
acquired by the Optionee for his or her own account for  investment and not with
a view to, or for sale in connection  with,  any  distribution  of the Option or
Stock.  The  certificates  representing  the shares of Stock purchased under any
Option  granted  under this Plan may  contain  such  legends as counsel  for the
Company shall deem necessary to comply with any applicable securities law, rule,
or regulation.


                                       12


     All Options granted under the Plan are subject to the  requirement  that if
at any time the Board of  Directors  or the  Committee  shall  determine  in its
discretion  that the listing or  qualification  of the Shares subject thereto on
any securities  exchange or under any applicable law, or the consent or approval
of any  governmental  regulatory  body,  or if, in the opinion of counsel to the
Company,  compliance  with any state or federal  securities laws is necessary or
desirable as a condition of or in  connection  with the issuance of Shares under
the  Option,  the  Optionee's  right to exercise  any and all  Options  shall be
suspended  and the Options may not be  exercised in whole or in part unless such
listing,  qualification,  consent,  approval,  or  compliance  shall  have  been
effected  or  obtained  free of any  condition  not  acceptable  to the Board of
Directors or the Committee.

11.  NO RETENTION RIGHTS.

     Neither the Plan nor any Option shall be deemed to give any  individual the
right to remain an employee or  consultant  of the Company or a  Affiliate.  The
Company and its  Affiliates  reserve the right to  terminate  the Service of any
employee or consultant at any time, with or without cause, subject to applicable
laws and a written employment agreement (if any).

12.  DURATION AND AMENDMENTS.

     (a) Term of the Plan. The Plan, as set forth herein, shall become effective
as  of  the  Effective  Date.  The  Plan,  if  not  extended,   shall  terminate
automatically  ten years after the  Effective  Date. It may be terminated on any
earlier date pursuant to Subsection(b) below.

     (b) Right to Amend or Terminate the Plan. The Board of Directors may amend,
suspend or  terminate  the Plan at any time and for any reason.  An amendment of
the Plan shall be subject to the approval of the Company's  shareholders only to
the extent required by applicable laws or regulations.

     (c) Effect of Amendment or  Termination.  No Shares shall be issued or sold
under the Plan after the termination thereof,  except upon exercise of an Option
granted prior to such termination. The termination of the Plan, or any amendment
thereof,  shall not affect any Share previously  issued or any Option previously
granted under the Plan.

13.  GOVERNING LAW; INTEGRATION

     This  Plan  and  the  rights  and   obligations  of  the  Company  and  the
participants this Plan shall be governed and construed according to the domestic
substantive  laws of the State of California  without giving effect to choice or
conflict of law  provisions  that would cause the  application  of the  domestic
substantive  laws of any other  jurisdiction.  This  Plan and the  Stock  Option
Agreements  granted from time to time pursuant to the Plan  constitute  the sole
understanding  of the Company and the  participants  with respect to the subject
matter of the Plan and the Stock Option Agreements.

                                       13


                                NORTH BAY BANCORP

                    EMPLOYEE INCENTIVE STOCK OPTION AGREEMENT

                        UNDER THE 2002 STOCK OPTION PLAN

                                 Granting Date:

TO:

         We are  pleased to notify you that North Bay  Bancorp  (the  "Company")
this  day  hereby  grants  to you an  option  to  purchase  all or any  part  of
______________  shares of the Common Stock of the Company (the  "Shares") at the
Option  Price of  _____________  per share as a stock option under the North Bay
Bancorp 2002 Stock Option Plan (the Plan").

         THIS OPTION MAY BE EXERCISED  ONLY IN ACCORDANCE  WITH THE TERMS OF THE
PLAN. ONLY CERTAIN  PROVISIONS OF THE PLAN ARE SUMMARIZED IN THIS  AGREEMENT.  A
COPY OF THE PLAN IS PROVIDED WITH THIS AGREEMENT.


         THIS OPTION MAY BE EXERCISED ONLY IF THE PLAN IS APPROVED BY A MAJORITY
OF ALL THE SHARES  REPRESENTED  AND VOTING AT A MEETING OF  SHAREHOLDERS  OF THE
COMPANY.

         1. Nature of the Option

         This  Option is  intended to qualify as an  incentive  stock  option as
defined in Section 422 of the  Internal  Revenue  Code of 1986,  as amended (the
"Code").  However,  the Company  does not  represent or warrant that this Option
qualifies as an incentive stock option. You are responsible to consult with your
own tax advisor  regarding  the tax  effects of the Option and the  requirements
necessary  to  obtain  income  tax  treatment  under  Section  422 of the  Code,
including, but not limited to, holding period requirements.  You understand that
if you dispose of any Shares  received under this Option less than two (2) years
after the Grant Date of the Option or less than one (1) year after the date this
Option is exercised,  you will lose your incentive stock option treatment and be
treated for federal income tax purposes as having  received  ordinary  income at
the time of such disposition in an amount  generally  measured by the difference
between the Exercise  Price and the lower of the Fair Market Value of the Shares
at the date of the  exercise or the Fair Market  Value of the Shares at the date
of  disposition.  If you dispose of such Shares at any time after the expiration
of such  two-year and one-year  holding  periods,  any gain on such sale will be
taxed as long-term capital gain.

         You acknowledge, and the Company affirms, that the methodology by which
the  Fair  Market  Value  of the  Shares  has  been  determined  by the  Company
represents  a good faith  attempt,  as  defined in the Code and the  regulations
thereunder,  at reaching an accurate  appraisal  of the Fair Market Value of the
Shares;  and  the  Company  shall  not be  responsible  for any


                                      -1-

additional tax liability  incurred by you in the event that the Internal Revenue
Service were to determine that the Option does not qualify as an incentive stock
option for any reason.

         2. Signature on Option Agreement.

         This option cannot be exercised unless you first sign this Agreement in
the place provided and return it to the Secretary of the Company.  However, your
signing and  delivering  this Agreement will not bind you to purchase any of the
Shares subject to the option.  Your  obligation to purchase the Shares can arise
only when you  exercise  this option in the manner  described  in Paragraph 3 of
this Agreement.

         3. Terms of Option.

         (a) Exercise of Option.

         You may exercise  this option during a calendar year only to the extent
that the aggregate  fair market value  (determined  at the times the options are
granted) of the stock that may be  acquired  pursuant to this option (or portion
thereof)  and  all  other   incentive  stock  options  granted  that  are  first
exercisable  by you during the calendar  year does not exceed  $100,000  (taking
into  account all  incentive  stock  options  under any stock option plan of the
Company or any of its affiliates or any predecessor of any such corporation). If
permitted in regulations  promulgated  by the Treasury  Department or rulings of
the Internal Revenue Service,  you may choose, among the incentive stock options
granted under the Plan that are otherwise first exercisable by you in a calendar
year, those options you wish to exercise subject to the $100,000 limitation. For
example,  you may decide to exercise the options  that have the lowest  exercise
prices.  If such a choice is not permitted (as  determined by the Company in its
sole  discretion),  you must exercise  incentive stock options that became first
exercisable in a calendar year without regard to the $100,000 limitation, in the
order in which  they were  granted  to you (up to the  $100,000  limit).  If you
choose not to exercise an option that is first  exercisable  in a calendar  year
under the $100,000 limitation,  you may exercise that option in subsequent years
without regard to the $100,000 limitation.

         Subject  to  the  provisions  of  Paragraphs  4 and 7  below  and  this
Paragraph  3, this option can be exercised by you at any time during a period of
one hundred twenty (120) months from the granting date as follows:

                  (i) After the  expiration of  __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;

                  (ii) After the  expiration of _________-  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than _______ percent (__%) of the Shares;


                                      -2-

                  (iii) After the expiration of  _____________  (__) months from
         the  granting  date,  this option may be exercised to the extent of not
         more than _______ percent (__%) of the Shares;

                  (iv) After the  expiration of  _____________  (__) months from
         the granting date,  this option may be exercised to the extent of______
         percent (__%) of the Shares;

                  (v)  After  the  expiration  of  ______(__)  months  from  the
         granting  date,   this  option  may  be  exercised  to  the  extent  of
         ____________ percent (__%) of the Shares.

                  (vi) After the expiration of __________ (____) months from the
         granting  date,  this option may be exercised to the extent of not more
         than  _____________________________________  percent  (______%)  of the
         Shares;

                  (vii) After the  expiration of  __________  (____) months from
         the  granting  date,  this option may be exercised to the extent of not
         more than  ______________________________________  percent (______%) of
         the Shares;

                  (viii) After the  expiration of __________  (____) months from
         the  granting  date,  this option may be exercised to the extent of not
         more than  ______________________________________  percent (______%) of
         the Shares;

                  (ix) After the expiration of __________ (____) months from the
         granting  date,  this option may be exercised to the extent of not more
         than  ______________________________________  percent  (______%) of the
         Shares;

                  (x) After the expiration of __________  (____) months from the
         granting  date,  this option may be exercised to the extent of not more
         than  ______________________________________  percent  (______%) of the
         Shares

                  (xi) After the expiration of __________ (____) months from the
         granting  date,  this option may be exercised to the extent of not more
         than  ______________________________________  percent  (______%) of the
         Shares.

         Any portion of the option that you do not exercise shall accumulate and
can be exercised by you any time prior to the  expiration of one hundred  twenty
(120) months from the granting date.

         (b) Payment for Option Shares.

                  (i) General Rule.  The entire  Exercise  Price of Common Stock
         issued upon  exercise  of Options  shall be payable in cash at the time
         when  such  Common  Stock  are  purchased,  except  the  Board  (or the
         Compensation Committee , if authorized) may, in its


                                       -3-


         discretion, accept payment pursuant to paragraphs (ii), (iii), and (iv)
         below, or any combination of these forms of payment.

                  (ii)  Surrender  of Stock.  Payment may be made all or in part
         with Shares which have already been owned by the Optionee or his or her
         representative  for more than 6 months and which are surrendered to the
         Company in good form for transfer. Such Shares shall be valued at their
         Fair Market Value on the date when the new Shares are  purchased  under
         the Plan.

                  (iii) Exercise/Sale. Payment may be made by the delivery (on a
         form  prescribed  by the  Company)  of an  irrevocable  direction  to a
         securities broker approved by the Company to sell Shares and to deliver
         all or part of the sales  proceeds  to the Company in payment of all or
         part of the Exercise Price and any withholding taxes.

                  (iv) Exercise/ Pledge. Payment may be made by the delivery (on
         a form prescribed by the Company) of an irrevocable direction to pledge
         Shares to a securities  broker or lender  approved by the  Company,  as
         security for a loan, and to deliver all or part of the loan proceeds to
         the  Company in payment  of all or part of the  Exercise  Price and any
         withholding taxes.

                  (v)  Withholding  Taxes.  To the extent required by applicable
         federal,  state,  local or foreign  law,  you shall  make  arrangements
         satisfactory to the Company for the satisfaction of any withholding tax
         obligations that arise by reason of your Option.  The Company shall not
         be required to issue any Shares  under the Plan until such  obligations
         are satisfied.

        (c)  Delivery of Stock Certificates.

         The  Company  shall  deliver to you (or such other  person  entitled to
exercise  the  option),  not be less  than  fifteen  (15) days and not more than
thirty (30) days after the giving of such notice unless an earlier or later date
is mutually  agreed  upon,  without  transfer or issue tax to you (or such other
person entitled to exercise the option), at the principal office of the Company,
or  such  other  place  as  shall  be  mutually  acceptable,  a  certificate  or
certificates for such Shares dated the date the options were validly  exercised;
provided,  however,  that  the time of such  delivery  may be  postponed  by the
Company for such period as may be required for it with  reasonable  diligence to
comply  with any  requirements  of law. No  fractional  shares will be issued or
delivered.

         4. Termination of Office or Employment.

                  In the event your services terminate:

                  (i) As a result  of such  your  death or  Permanent  and Total
         Disability,  the term of the Option  shall expire  twelve  months after
         such death or  Permanent  and Total  Disability  but not later than the
         original expiration date specified in the Stock Option Agreement.


                                      -4-

                  (ii) As a result of  termination of your  employment  with the
         Company  (by  resignation  or  otherwise)  for cause,  the term of this
         Option shall expire immediately upon such termination (notice or advice
         of which shall  subsequently  be given by the Company),  and thereafter
         neither  you nor your estate  shall be entitled to exercise  the Option
         with  respect  to any  Shares  whatsoever,  whether  or not after  such
         termination  the  Employee  may  receive  payment  from the Company for
         vacation pay, for services rendered prior to termination,  for services
         for the day on which termination occurred, for salary in lieu of notice
         or for other benefits. For purposes of this Plan, "cause" shall mean an
         act of embezzlement,  fraud,  dishonesty or breach of fiduciary duty to
         the Company or its  shareholders,  disclosure  of any of the secrets or
         confidential  information of the Company,  the inducement of any client
         or customer of the Company to break any contract  with the Company,  or
         the  inducement  of any principal for whom the Company acts as agent to
         terminate such agency relationship, the engagement of any conduct which
         constitutes  unfair  competition  with  the  Company,  the  removal  of
         Optionee from office by any court or bank  regulatory  agency,  or such
         other  similar acts which the  Committee in its  discretion  reasonably
         determines to constitute  adequate cause for  termination of Optionee's
         Service. As used in this Paragraph (ii), Company includes Affiliates of
         the Company.


                  (iii) As a result of  termination  for any  reason  other than
         Permanent and Total Disability,  death or cause, the term of the Option
         shall expire three  months after such  termination,  but not later than
         the original expiration date specified in the Stock Option Agreement.

         5. Nontransferability of Option.


         This  option  shall not be  transferable  except by will or the laws of
descent and  distribution  and this option may be exercised during your lifetime
only by you. Any  purported  transfer or assignment of this option shall be void
and of no effect,  and shall give the Company the right to terminate this option
as of the date of such purported transfer or assignment.

         6. Adjustment In the Event of  Changes in the Shares.

         If the  outstanding  shares of the stock of the Company are  increased,
decreased, changed into or exchanged for a different number or kind of shares or
securities  of the Company  through  reorganization,  merger,  recapitalization,
reclassification, stock split, stock dividend, stock consolidation or otherwise,
without   consideration  to  the  Company,   an  appropriate  and  proportionate
adjustment  shall be made in the  number  and  kind of  shares  subject  to this
option. A corresponding adjustment changing the number or kind of shares and the
exercise price per share  allocated to unexercised  options or portions  thereof
which shall have been granted  prior to any such change shall  likewise be made.
Any  adjustment  shall  be made by the  Board,  whose  determination  as to what
adjustments  shall  be  made,  and  the  extent  thereof,  shall  be  final  and
conclusive.  No  fractional  shares of stock  shall be issued or made  available
under the Plan on account of any such adjustment, and fractional share-interests
shall be disregarded, except that they may be accumulated.


                                      -5-

         7. Terminating Events/ Vesting Event

         A Terminating Event is defined as any one of the following events:

                  (i) the  consummation  of a plan of dissolution or liquidation
         of the Company;

                  (ii) the consummation of a plan of  reorganization,  merger or
         consolidation  involving  the  Company,  except  for a  reorganization,
         merger or  consolidation  where  (A) the  shareholders  of the  Company
         immediately prior to such  reorganization,  merger or consolidation own
         directly or indirectly at least 50% of the combined voting power of the
         outstanding  voting  securities of the corporation  resulting from such
         reorganization,  merger or consolidation (the "Surviving  Corporation")
         in  substantially  the same  proportion  as their  ownership  of voting
         securities  of the Company  immediately  prior to such  reorganization,
         merger or  consolidation  and the  individuals  who were members of the
         Board of Directors  immediately prior to the execution of the agreement
         providing for such reorganization,  merger or consolidation  constitute
         at least 50% of the members of the board of directors of the  Surviving
         Corporation,  or a  corporation  beneficially  directly  or  indirectly
         owning  a  majority  of  the  voting   securities   of  the   Surviving
         Corporation, or (B) the Company is reorganized,  merged or consolidated
         with a corporation in which any shareholder  owning at least 50% of the
         combined  voting  power of the  outstanding  voting  securities  of the
         Company   immediately   prior  to  such   reorganization,   merger   or
         consolidation,  owns at least 50% of the  combined  voting power of the
         outstanding  voting  securities of the corporation  resulting from such
         reorganization, merger or consolidation.

                  (iii) the sale of all or  substantially  all of the  assets of
         the Company to another Person;

                  (iv)  the   acquisition  of  beneficial   ownership  of  stock
         representing  more than fifty  percent (50%) of the voting power of the
         Company then outstanding by another Person.

          A Vesting  Event shall mean the  approval by the  shareholders  of the
Company of any matter,  plan or transaction which would constitute a Terminating
Event,  or if any Terminating  Event occurs without  shareholder  approval,  the
occurrence of such Terminating Event.

         In the event of a Vesting Event,  your Option shall become  immediately
excercisable as to all Shares covered by your Option,  whether or not previously
vested.

         Not less than thirty (30) days prior to the occurrence of a Terminating
Event,  the Committee or the Board shall notify each Optionee of the pendency of
the Terminating  Event.  Upon the effective date of the Terminating  Event,  the
Plan shall  automatically  terminate and all Options  theretofore  granted shall
terminate,  unless provision is made in connection with such transaction for the
continuance of the Plan and/or  assumption of Options  theretofore  granted,  or
substitution  for  such  Options  with new  stock  options  covering  stock of a
successor corporation,  or a parent or subsidiary corporation thereof, solely at
the   discretion  of  such   successor   corporation  or  parent  or  subsidiary
corporation,  with  appropriate  adjustments as to number and


                                      -6-

kind of shares  and  prices,  in which  event the Plan and  Options  theretofore
granted  shall  continue in the manner and under the terms so  provided.  If the
Plan and unexercised Options shall terminate pursuant to the preceding sentence,
all persons  shall have the right to exercise the Options then  outstanding  and
not exercised at such time prior to the consummation of the transaction  causing
such  termination  as the Company shall  designate,  unless the Board shall have
provided  for the  cancellation  of such  Options in exchange for a cash payment
equal to the excess of the Fair Market  Value of the Stock as of the date of the
Terminating Event over the exercise price of such Options.

         8. Your Option is Subject to Terms of the Plan.

         This  Agreement is subject in all respects to the terms and  conditions
of the Plan and in the event of any  inconsistencies  between the  Agreement and
the Plan the terms of the Plan  shall be  controlling.  Your  signature  on this
Agreement  represents your  acknowledgment of receipt of a copy of the Plan. Any
dispute or disagreement which arises under or as a result of or pursuant to this
Agreement shall be finally and conclusively determined by the Board of Directors
of the Company, or a duly appointed Committee, in its sole discretion,  and such
determination shall be binding upon all parties.

         9. Exercise of Option Conditioned on Approval.

         Exercise of this option is conditioned upon approval of the Plan by the
shareholders  of  the  Company  in  accordance  with  the  requirements  of  the
applicable law and regulations.

         10. Tax Effects.

         THE FEDERAL TAX  CONSEQUENCES OF EMPLOYEE STOCK OPTIONS ARE COMPLEX AND
SUBJECT TO CHANGE.  ACCORDINGLY,  AN OPTIONEE (OR HIS OR HER GUARDIAN, ESTATE OR
LEGATEE)  SHOULD CONSULT WITH HIS OR HER OWN TAX ADVISOR  BEFORE  EXERCISING ANY
OPTION OR DISPOSING OF ANY SHARES ACQUIRED UPON THE EXERCISE OF AN OPTION.

         11. Rights as a Shareholder.

         As a holder of an option,  you shall  have the rights of a  shareholder
with respect to the Shares subject to this option only after a stock certificate
representing such Shares shall have been issued to you upon the exercise of this
option.

         12. Notification of Sale.

         You agree that you, or any person  acquiring  Shares  upon  exercise of
this Option,  will notify the Company not more than five (5) days after any sale
or disposition of such Shares.


                                      -7-


Agreed to this __th
day of _______, ____.




                                        NORTH BAYBANCORP

                                        By ______________________________


                                           ------------------------------
                                              Signature of Optionee


                                      -8-

                                NORTH BAY BANCORP
                       NONSTATUTORY STOCK OPTION AGREEMENT
                        UNDER THE 2002 STOCK OPTION PLAN

                                 Granting Date:

TO:

         We are  pleased to notify you that North Bay  Bancorp  (the  "Company")
this  day  hereby  grants  to you an  option  to  purchase  all or any  part  of
__________  shares of the Common  Stock of the  Company  (the  "Shares")  at the
Option  Price of $____ per share as a stock  option  under the North Bay Bancorp
2002 Stock Option Plan (the "Plan").

         THIS OPTION MAY BE EXERCISED  ONLY IN ACCORDANCE  WITH THE TERMS OF THE
PLAN. ONLY CERTAIN  PROVISIONS OF THE PLAN ARE SUMMARIZED IN THIS  AGREEMENT.  A
COPY OF THE PLAN IS PROVIDED WITH THIS AGREEMENT.


         THIS OPTION MAY BE EXERCISED ONLY IF THE PLAN IS APPROVED BY A MAJORITY
OF ALL THE SHARES  REPRESENTED  AND VOTING AT THE MEETING OF SHAREHOLDERS OF THE
COMPANY.

         1. Purpose of the Option.

         One of the  purposes  of the Plan is to advance  the  interests  of the
Company by stimulating the efforts of full-time  salaried employees and officers
on behalf of the Company and its affiliates  (collectively  the  "Company"),  by
granting  them  financial  participation  in the  progress  and  success  of the
Company.

         2. Signature on Option Agreement.

         This option cannot be exercised unless you first sign this Agreement in
the place provided and return it to the Secretary of the Company.  However, your
signing and  delivering  this Agreement will not bind you to purchase any of the
Shares subject to the option.  Your  obligation to purchase the Shares can arise
only when you exercise this option in the manner set forth in Paragraph 3 below.

         3. Terms of Option and Exercise of Option.

         Subject  to  the  provisions  of  Paragraphs  4 and 7  below  and  this
Paragraph  3, this option can be exercised by you at any time during a period of
one hundred twenty (120) months from the granting date as follows:

         (a) Exercise of Options

                  (i) After the  expiration of  __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;


                                      -1-

                  (ii) After the  expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;


                  (iii) After the expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;

                  (iv) After the  expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;


                  (v) After the  expiration of  __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;


                  (vi) After the  expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;

                  (vii) After the expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;

                  (viii) After the expiration of __________ (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;

                   (ix) After the expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;

                  (x) After the  expiration of  __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Shares;


                  (xi) After the  expiration of __________  (__) months from the
         granting  date,  this option may be exercised to the extent of not more
         than __________ percent (__%) of the Share.

         Any portion of the option that you do not exercise shall accumulate and
can be exercised by you any time prior to the  expiration of one hundred  twenty
(120) months from the granting date.


                                       -2-

         (b) Payment for Option Shares.


                  (i) General Rule.  The entire  Exercise  Price of Common Stock
         issued upon  exercise  of Options  shall be payable in cash at the time
         when  such  Common  Stock  are  purchased,  except  the  Board  (or the
         Compensation Committee , if authorized) may, in its discretion,  accept
         payment  pursuant to paragraphs  (ii),  (iii),  and (iv) below,  or any
         combination of these forms of payment.

                  (ii)  Surrender  of Stock.  Payment may be made all or in part
         with Shares which have already been owned by the Optionee or his or her
         representative  for more than 6 months and which are surrendered to the
         Company in good form for transfer. Such Shares shall be valued at their
         Fair Market Value on the date when the new Shares are  purchased  under
         the Plan.

                  (iii) Exercise/Sale. Payment may be made by the delivery (on a
         form  prescribed  by the  Company)  of an  irrevocable  direction  to a
         securities broker approved by the Company to sell Shares and to deliver
         all or part of the sales  proceeds  to the Company in payment of all or
         part of the Exercise Price and any withholding taxes.

                  (iv) Exercise/ Pledge. Payment may be made by the delivery (on
         a form prescribed by the Company) of an irrevocable direction to pledge
         Shares to a securities  broker or lender  approved by the  Company,  as
         security for a loan, and to deliver all or part of the loan proceeds to
         the  Company in payment  of all or part of the  Exercise  Price and any
         withholding taxes.

                  (v)  Withholding  Taxes.  To the extent required by applicable
         federal,  state,  local or foreign  law,  you shall  make  arrangements
         satisfactory to the Company for the satisfaction of any withholding tax
         obligations that arise by reason of your Option.  The Company shall not
         be required to issue any Shares  under the Plan until such  obligations
         are satisfied.

         (c) Delivery of Stock  Certificates.  The Company  shall deliver to you
         (or such other person  entitled to exercise  the  option),  not be less
         than  fifteen  (15) days and not more than  thirty  (30) days after the
         giving of such  notice  unless an  earlier  or later  date is  mutually
         agreed upon, without transfer or issue tax to you (or such other person
         entitled  to  exercise  the  option),  at the  principal  office of the
         Company,  or such  other  place  as  shall be  mutually  acceptable,  a
         certificate or certificates  for such Shares dated the date the options
         were  validly  exercised;  provided,  however,  that  the  time of such
         delivery  may be  postponed  by the  Company  for such period as may be
         required  for  it  with   reasonable   diligence  to  comply  with  any
         requirements of law. No fractional shares will be issued or delivered

         4. Termination of Office or Employment.

                 In the event your services terminate:


                                      -3-

                  (i) As a result  of such  your  death or  Permanent  and Total
         Disability,  the term of the Option  shall expire  twelve  months after
         such death or  Permanent  and Total  Disability  but not later than the
         original  expiration  date  specified  in the Stock  Option  Agreement;
         provided, however, that the expiration of the term of the Option may be
         extended  for  such  further  period  as the  Committee,  in  its  sole
         discretion,  may  determine,  to a date not  later  than  the  original
         expiration date specified in the Stock Option Agreement.

                  (ii) As a result of  termination of your  employment  with the
         Company  (by  resignation  or  otherwise)  for cause,  the term of this
         Option shall expire immediately upon such termination (notice or advice
         of which shall  subsequently  be given by the Company),  and thereafter
         neither  you nor your estate  shall be entitled to exercise  the Option
         with  respect  to any  Shares  whatsoever,  whether  or not after  such
         termination  the  Employee  may  receive  payment  from the Company for
         vacation pay, for services rendered prior to termination,  for services
         for the day on which termination occurred, for salary in lieu of notice
         or for other benefits. For purposes of this Plan, "cause" shall mean an
         act of embezzlement,  fraud,  dishonesty or breach of fiduciary duty to
         the Company or its  shareholders,  disclosure  of any of the secrets or
         confidential  information of the Company,  the inducement of any client
         or customer of the Company to break any contract  with the Company,  or
         the  inducement  of any principal for whom the Company acts as agent to
         terminate such agency relationship, the engagement of any conduct which
         constitutes  unfair  competition  with  the  Company,  the  removal  of
         Optionee from office by any court or bank  regulatory  agency,  or such
         other  similar acts which the  Committee in its  discretion  reasonably
         determines to constitute  adequate cause for  termination of Optionee's
         Service. As used in this Paragraph (ii), Company includes Affiliates of
         the Company.

                  (iii) As a result of  termination  for any  reason  other than
         Permanent and Total Disability,  death or cause, the term of the Option
         shall expire three  months after such  termination,  but not later than
         the original  expiration date specified in the Stock Option  Agreement;
         provided, however, that the expiration of the term of the Option may be
         extended  for  such  further  period  as the  Committee,  in  its  sole
         discretion,  may  determine,  to a date not  later  than  the  original
         expiration date specified in the Stock Option Agreement.

         5. Nontransferability of Option.

         This  option  shall not be  transferable  except by will or the laws of
descent and distribution,  and this option may be exercised during your lifetime
only by you. Any  purported  transfer or assignment of this option shall be void
and of no effect,  and shall give the Company the right to terminate this option
as of the date of such purported transfer or assignment.


                                      -4-

         6. Adjustment of and Changes in the Shares.

         If the  outstanding  shares of the stock of the Company are  increased,
decreased, changed into or exchanged for a different number or kind of shares or
securities  of the Company  through  reorganization,  merger,  recapitalization,
reclassification, stock split, stock dividend, stock consolidation or otherwise,
without   consideration  to  the  Company,   an  appropriate  and  proportionate
adjustment  shall be made in the  number  and  kind of  shares  subject  to this
option. A corresponding adjustment changing the number or kind of shares and the
exercise price per share  allocated to unexercised  options or portions  thereof
which shall have been granted  prior to any such change shall  likewise be made.
Any  adjustment  shall  be made by the  Board,  whose  determination  as to what
adjustments  shall  be  made,  and  the  extent  thereof,  shall  be  final  and
conclusive.  No  fractional  shares of stock  shall be issued or made  available
under the Plan on account of any such adjustment, and fractional share-interests
shall be disregarded, except that they may be accumulated.

         7. Terminating Events/ Vesting Event .

         A Terminating Event is defined as any one of the following events:

                  (i) the  consummation  of a plan of dissolution or liquidation
         of the Company;


                  (ii) the consummation of a plan of  reorganization,  merger or
         consolidation  involving  the  Company,  except  for a  reorganization,
         merger or  consolidation  where  (A) the  shareholders  of the  Company
         immediately prior to such  reorganization,  merger or consolidation own
         directly or indirectly at least 50% of the combined voting power of the
         outstanding  voting  securities of the corporation  resulting from such
         reorganization,  merger or consolidation (the "Surviving  Corporation")
         in  substantially  the same  proportion  as their  ownership  of voting
         securities  of the Company  immediately  prior to such  reorganization,
         merger or  consolidation  and the  individuals  who were members of the
         Board of Directors  immediately prior to the execution of the agreement
         providing for such reorganization,  merger or consolidation  constitute
         at least 50% of the members of the board of directors of the  Surviving
         Corporation,  or a  corporation  beneficially  directly  or  indirectly
         owning  a  majority  of  the  voting   securities   of  the   Surviving
         Corporation, or (B) the Company is reorganized,  merged or consolidated
         with a corporation in which any shareholder  owning at least 50% of the
         combined  voting  power of the  outstanding  voting  securities  of the
         Company   immediately   prior  to  such   reorganization,   merger   or
         consolidation,  owns at least 50% of the  combined  voting power of the
         outstanding  voting  securities of the corporation  resulting from such
         reorganization, merger or consolidation.

                  (iii) the sale of all or  substantially  all of the  assets of
         the Company to another Person;


                                      -5-

                  (iv)  the   acquisition  of  beneficial   ownership  of  stock
         representing  more than fifty  percent (50%) of the voting power of the
         Company then outstanding by another Person.

          A Vesting  Event shall mean the  approval by the  shareholders  of the
Company of any matter,  plan or transaction which would constitute a Terminating
Event,  or if any Terminating  Event occurs without  shareholder  approval,  the
occurrence of such Terminating Event.

         In the event of a Vesting Event,  your Option shall become  immediately
excercisable as to all Shares covered by your Option,  whether or not previously
vested.

         Not less than thirty (30) days prior to the occurrence of a Terminating
Event,  the Committee or the Board shall notify each Optionee of the pendency of
the Terminating  Event.  Upon the effective date of the Terminating  Event,  the
Plan shall  automatically  terminate and all Options  theretofore  granted shall
terminate,  unless provision is made in connection with such transaction for the
continuance of the Plan and/or  assumption of Options  theretofore  granted,  or
substitution  for  such  Options  with new  stock  options  covering  stock of a
successor corporation,  or a parent or subsidiary corporation thereof, solely at
the   discretion  of  such   successor   corporation  or  parent  or  subsidiary
corporation,  with  appropriate  adjustments as to number and kind of shares and
prices, in which event the Plan and Options  theretofore  granted shall continue
in the  manner  and  under the terms so  provided.  If the Plan and  unexercised
Options shall terminate  pursuant to the preceding  sentence,  all persons shall
have the right to exercise the Options  then  outstanding  and not  exercised at
such time prior to the consummation of the transaction  causing such termination
as the Company  shall  designate,  unless the Board shall have  provided for the
cancellation  of such Options in exchange for a cash payment equal to the excess
of the Fair Market  Value of the Stock as of the date of the  Terminating  Event
over the exercise price of such Options.

         8. Subject to Terms of the Plan.

         This  Agreement  shall be  subject  in all  respects  to the  terms and
conditions  of the Plan  and in the  event of any  inconsistencies  between  the
Agreement  and the  Plan  the  terms of the  Plan  shall  be  controlling.  Your
signature  herein  represents  your  acknowledgment  of receipt of a copy of the
Plan. Any dispute or  disagreement  which shall arise under or as a result of or
pursuant to this Agreement shall be finally and  conclusively  determined by the
Board of  Directors  of the Company or a duly  appointed  Committee  in its sole
discretion, and such determination shall be binding upon all parties.

         9. Exercise of Option Conditioned on Approval.

         Exercise of this option is conditioned upon approval of the Plan by the
shareholders  of  the  Company  in  accordance  with  the  requirements  of  the
Commissioner of Financial Institutions of the State of California.


                                      -6-


         10. Tax Effects.

         THE FEDERAL AND STATE TAX  CONSEQUENCES  OF EMPLOYEE  STOCK OPTIONS ARE
COMPLEX AND SUBJECT TO CHANGE. ACCORDINGLY, AN OPTIONEE (OR HIS OR HER GUARDIAN,
ESTATE  OR  LEGATEE)  SHOULD  CONSULT  WITH  HIS OR HER OWN TAX  ADVISOR  BEFORE
EXERCISING  ANY OPTION OR DISPOSING OF ANY SHARES  ACQUIRED UPON THE EXERCISE OF
AN OPTION.

         11. Rights as a Shareholder.

         As a holder of an option,  you shall  have the rights of a  shareholder
with respect to the Shares subject to this option only after a stock certificate
representing such Shares shall have been issued to you upon the exercise of this
option.

         12. Notification of Sale.

         You agree that you, or any person  acquiring  Shares  upon  exercise of
this Option,  will notify the Company not more than five (5) days after any sale
or disposition of such Shares.

Agreed to this ___th day of ______ ____

                                           NORTH BAY BANCORP.



                                           By ___________________________




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

                                                 Signature of Optionee


                                      -7-