SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR (g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                                NORTH BAY BANCORP
                            ------------------------
             (Exact name of registrant as specified in its charter)

California                                                            68-0434802
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(State of incorporation or organization)       (IRS Employer Identification No.)

1500 Soscol Avenue, Napa, California                                  94559-1314
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(Address of principal executive offices)                              (zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

         Title of each class                  Name of each exchange
         to be so registered                  each class is to be registered
         -------------------                  ------------------------------

                  None                                 None

Securities to be registered pursuant to Section 12(g) of the Act:

                         Preferred Share Purchase Rights
                  ---------------------------------------------
                                (Title of Class)


Item 1. Description of Securities to be Registered

            On October 28,  2002,  the Board of  Directors  of North Bay Bancorp
(the "Company")  declared a dividend of one share purchase right (a "Right") for
each outstanding share of common stock, no par value of the Company (the "Common
Shares").  The dividend is payable on December 6, 2002 to shareholders of record
as of November 15, 2002 (the "Record Date").  Each Right entitles the registered
holder to purchase from the Company one  one-hundredth  of a share (a "Unit") of
Series A Preferred Stock (the "Preferred  Stock") of the Company,  at a price of
$90.00 per Unit (the "Purchase Price"),  subject to adjustment.  The description
and  terms  of the  Rights  are set  forth in a Rights  Agreement  (the  "Rights
Agreement")  between the Company and Registrar and Transfer  Company,  as Rights
Agent (the "Rights Agent").

            Until  the  earliest  to  occur  of (a) 10 days  following  a public
announcement  that a person or group of  affiliated  or  associated  persons (an
"Acquiring Person") has acquired,  or obtained the right to acquire,  beneficial
ownership or record  ownership of 10% or more of the outstanding  Common Shares;
(b) 10 days following the  commencement  of, or  announcement of an intention to
make, a tender offer or exchange offer the consummation of which would result in
the beneficial ownership or record ownership by a person or group of 10% or more
of such  outstanding  Common  Shares;  or (c) the  date a  person  or  group  of
affiliated or associated persons is or becomes the beneficial or record owner of
10% or more of the  outstanding  Common  Shares and (i) the actions  such person
proposes to take are likely to have a material adverse impact on the business or
prospects  of the  Company;  (ii) such  person  intends to cause the  Company to
repurchase the Common Shares owned by such person;  (iii) such person  exercises
or attempts to exercise a controlling  influence over the Company;  or (iv) such
person transfers all or a portion of such Common Shares in a manner that results
in a person owning 9.9% or more of the Common Shares (an "Adverse  Person") (the
earliest of such dates being called the "Distribution Date"), the Rights will be
evidenced,  with respect to any of the Common Share certificates  outstanding as
of the Record Date, by such Common Share certificate with a copy of a Summary of
Rights attached the certificate.

            As of the date of adoption  of the Rights  Agreement,  no  Acquiring
Person or Adverse Person exists for purposes of the Rights Agreement.

            The Rights Agreement provides that, until the Distribution Date, the
Rights  will be  transferred  with and only with the  Common  Shares.  Until the
Distribution  Date (or earlier  redemption  or  expiration  of the Rights),  new
Common Share  certificates  issued after the Record Date,  upon  transfer or new
issuance  of Common  Shares  will  contain a notation  incorporating  the Rights
Agreement by reference.  Until the Distribution  Date (or earlier  redemption or
expiration of the Rights),  the surrender for transfer of any  certificates  for
Common Shares,  outstanding as of the Record Date, even without such notation or
a copy of this Summary of Rights being attached  thereto,  will also  constitute
the transfer of the Rights associated with the Common Shares represented by such
certificate.  As soon as practicable  following the Distribution Date,  separate
certificates  evidencing  the Rights  ("Right  Certificates")  will be mailed to
holders  of record of the  Common  Shares  as of the  close of  business  on the
Distribution Date and such separate Right  Certificates  alone will evidence the
Rights.


                                      -2-


            The Rights are not  exercisable  until the  Distribution  Date.  The
Rights will expire on October 28, 2012 (the "Final Expiration Date"), unless the
Final  Expiration Date is extended or unless the Rights are earlier  redeemed by
the Company, in each case, as described below.

            The  Purchase  Price  payable,  and the number of Units of Preferred
Stock or other securities or property issuable,  upon exercise of the Rights are
subject to adjustment from time to time to prevent  dilution (i) in the event of
a stock dividend on, or a subdivision,  combination or reclassification  of, the
Preferred  Stock,  (ii)  upon the grant to  holders  of the  Preferred  Stock of
certain  rights or warrants to subscribe  for or purchase  Preferred  Stock at a
price, or securities  convertible into Preferred Stock with a conversion  price,
less than the then current market price of the Preferred Stock or (iii) upon the
distribution  to holders of the Preferred  Stock of evidences of indebtedness or
assets  (excluding  regular  periodic  cash  dividends  paid out of  earnings or
retained  earnings or dividends  payable in Preferred  Stock) or of subscription
rights or warrants (other than those referred to above).

            In the  event  that the  Company  is  acquired  in a merger or other
business  combination  transaction or 50% or more of its consolidated  assets or
earning power are sold, each holder of a Right will thereafter have the right to
receive,  upon the exercise  thereof at the then current  exercise  price of the
Right,  that number of shares of common stock of the acquiring  company which at
the time of such  transaction will have a market value of two times the exercise
price of the Right. In the event that any Person becomes an Acquiring  Person or
an Adverse Person,  each holder of a Right, other than Rights beneficially owned
by the Acquiring Person or Adverse Person (which will thereafter be void),  will
thereafter  have the right to  receive  upon  exercise  that  number of Units of
Preferred  Stock having a market  value of two times the  exercise  price of the
Right.

            At any time after the date an Acquiring  Person  obtains 10% or more
of the  Company's  Common Shares and prior to the  acquisition  by the Acquiring
Person of 50% of the outstanding Common Shares, the Company's Board of Directors
may exchange the Rights (other than Rights owned by the Acquiring  Person or its
affiliates),  in whole or in part, for Common Shares at an exchange ratio of one
Common Share per Right (subject to adjustment for stock splits,  stock dividends
and or similar transactions which occur after the date of the Rights Agreement).

            With certain exceptions, no adjustment in the Purchase Price will be
required until  cumulative  adjustments  require an adjustment of at least 1% in
such  Purchase  Price.  No  fractional  Units of  Preferred  Stock  (other  than
fractions that are integral multiples of one one-hundredths)  will be issued and
in lieu thereof, an adjustment in cash will be made based on the market price of
the Preferred Stock on the last trading day prior to the date of exercise.

            At any time prior to the date a Person  becomes an Acquiring  Person
or an Adverse  Person,  the Board of  Directors  of the  Company  may redeem the
Rights in whole, but not in part, at a price of $.001 per Right (the "Redemption
Price").  Immediately  upon any redemption of the Rights,  the right to exercise
the Rights will terminate and the only right of the holders of Rights will be to
receive the Redemption Price.


                                      -3-


            The terms of the Rights may be amended by the Board of  Directors of
the Company  without the  consent of the  holders of the  Rights,  including  an
amendment  to  extend  the  Final  Expiration  Date  and,  provided  there is no
Acquiring Person or Adverse Person, to extend the period during which the Rights
may be redeemed,  except that from and after such time as any person  becomes an
Acquiring  Person or an Adverse  Person no amendment  may  adversely  affect the
interests of the holders of the Rights.

            Until a Right is  exercised,  the holder of the Right,  as such will
have no rights as a shareholder of the Company,  including,  without limitation,
the right to vote or to receive dividends.

Item 2. Exhibits

Exhibit No.       Description
- -----------       -----------

      4.1         Rights  Agreement,  dated as of October 28, 2002,  between the
                  Company and Registrar and Transfer Company, as Rights Agent.

      4.2         Certificate of Determination  for the Series A Preferred Stock
                  (attached as Exhibit A to Rights Agreement).

      4.3         Right Certificate (attached as Exhibit B to Rights Agreement).
                  Pursuant to the Rights Agreement,  printed Right  Certificates
                  will not be mailed  until  the  Distribution  Date as  defined
                  therein.

      4.4         Summary of Rights to Purchase  Preferred  Shares  (attached as
                  Exhibit C to Rights Agreement).

                                    SIGNATURE

            Pursuant  to  the  requirements  of  Section  12 of  the  Securities
Exchange Act of 1934, the registrant has duly caused this registration statement
to be signed on its behalf by the undersigned, thereto duly authorized.

                                                    NORTH BAY BANCORP


Date: October 28, 2002                          By: /s/ Terry L. Robinson
                                                    ---------------------
                                                    Terry L. Robinson
                                                    President, and Chief
                                                    Executive  Officer


                                      -4-


                                  EXHIBIT INDEX

EXHIBIT NO.       DESCRIPTION
- -----------       -----------

     4.1          Rights  Agreement,  dated as of October 28, 2002,  between the
                  Company and Registrar and Transfer Company, as Rights Agent.

     4.2          Certificate   of   Determination   for  the  Series  A  Junior
                  Participating Preferred Stock (attached as Exhibit A to Rights
                  Agreement).

     4.3          Right Certificate (attached as Exhibit B to Rights Agreement).
                  Pursuant to the Rights Agreement,  printed Right  Certificates
                  will not be mailed  until  the  Distribution  Date as  defined
                  therein.

     4.4          Summary of Rights to Purchase  Preferred  Shares  (attached as
                  Exhibit C to Rights Agreement).


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