SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

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                                    FORM 8-A
               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934



                   LABORATORY CORPORATION OF AMERICA HOLDINGS
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               (Exact name of Registrant as Specified in Charter)

                       Delaware                          13-3757370
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       (State of Incorporation or Organization)           (IRS Employer
                                                       Identification No.)

    358 South Main Street, Burlington, North Carolina              27215
    -------------------------------------------------           ----------
        (Address of Principal Executive Offices)                (Zip Code)

If this form relates to the                If this form relates to the
registration of a class of                 registration of a class of
securities pursuant to Section             securities pursuant to Section
12(b) of the Exchange Act and is           12(g) of the Exchange Act and is
effective pursuant to General              effective pursuant to General
Instruction A.(c), please check the        Instruction A.(d), please check the
following box. [X]                         following box. [ ]


Securities Act registration statement file number to which this
form relates:________________
             (If applicable)


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

            Title of Each Class               Name of Each Exchange on Which
            to be so Registered               Each Class is to be Registered
            -------------------               ------------------------------

Series A Participating Cumulative
Preferred Stock Purchase Rights                               NYSE
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Securities to be registered pursuant to Section 12(g) of the Act:

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                                (Title of Class)

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                                (Title of Class)





Item 1.  Description of Registrant's Securities to be Registered.

     On December 12, 2001, the Board of Directors of Laboratory Corporation of
America Holdings (the "Company") declared a dividend of one preferred stock
purchase right (a "Right") for each outstanding share of common stock, par
value $0.10 per share (the "Common Stock"), of the Company payable to holders
of record as of the close of business on December 21, 2001 (the "Record Date").

     Prior to the Distribution Date (as defined below), the Rights will be
evidenced by the certificates for and will be transferred with the Common
Stock, and the registered holders of the Common Stock will be deemed to be the
registered holders of the Rights. After the Distribution Date, the Rights Agent
will mail separate certificates evidencing the Rights to each record holder of
the Common Stock as of the close of business on the Distribution Date, and
thereafter the Rights will be transferable separately from the Common Stock.
The "Distribution Date" generally means the earlier of (i) the close of
business on the 10th day after the date (the "Stock Acquisition Date") of the
first public announcement that a person (other than the Company or any of its
subsidiaries, or any employee benefit plan of the Company or any such
subsidiary, or Roche Holdings Inc. or its affiliates or associates so long as
it and its affiliates and associates do not acquire additional shares beyond
that already reported on its Schedule 13D dated June 13, 2001) has acquired
beneficial ownership of 15% or more of the outstanding shares of Common Stock
(an "Acquiring Person") and (ii) the close of business on the 10th business day
(or such later day as may be designated by the Board of Directors before any
person has become an Acquiring Person) after the date of the commencement of a
tender or exchange offer by any person which would, if consummated, result in
such person becoming an Acquiring Person.

     Prior to the Distribution Date, the Rights will not be exercisable. After
the Distribution Date (but before any person has become an Acquiring Person),
each Right will be exercisable to purchase, for $400 (the "Purchase Price"),
one one-hundredth of a share of Series A Participating Cumulative Preferred
Stock, par value $0.001 per share (the "Preferred Stock"). The terms and
conditions of the Rights are set forth in a Rights Agreement dated as of
December 13, 2001 between the Company and American Stock Transfer & Trust
Company, as Rights Agent (the "Rights Agreement"), a copy of which is attached
as an exhibit hereto and the description hereof is qualified in its entirety by
reference thereto.

     If any person has become an Acquiring Person (but none of the events
described in the second succeeding paragraph has occurred), each Right (other
than Rights beneficially owned by the Acquiring Person and certain affiliated
and associated persons) will entitle the holder, after the Distribution Date,
to purchase, for the Purchase Price, a number of shares of Common Stock having
a market value of twice the Purchase Price.


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     At any time after any person has become an Acquiring Person (but before
any person becomes the beneficial owner of 50% or more of the outstanding
shares of Common Stock or the occurrence of any of the events described in the
next paragraph), the Board of Directors may exchange all or part of the Rights
(other than Rights beneficially owned by an Acquiring Person and certain
affiliated and associated persons) for shares of Common Stock at an exchange
ratio of one share of Common Stock per Right.

     If, after any person has become an Acquiring Person, (1) the Company is
involved in a merger or other business combination in which the Company is not
the surviving corporation or its Common Stock is exchanged for other securities
or assets or (2) the Company and/or one or more of its subsidiaries sell or
otherwise transfer assets or earning power aggregating more than 50% of the
assets or earning power of the Company and its subsidiaries, taken as a whole,
then each Right will entitle the holder, after the Distribution Date, to
purchase, for the Purchase Price, a number of shares of common stock of the
other party to such business combination or sale (or in certain circumstances,
an affiliate) having a market value of twice the Purchase Price.

     The Board of Directors may redeem all of the Rights at a price of $0.001
per Right at any time before any person has become an Acquiring Person.

     The Rights will expire on December 13, 2011, unless earlier exchanged or
redeemed.

     Prior to any person becoming an Acquiring Person, the Rights Agreement may
be amended in any respect. After any person has become an Acquiring Person, the
Rights Agreement may not be amended in any respect that would adversely affect
Rights holders (other than any Acquiring Person and certain affiliated
persons), that would cause the Rights Agreement to become amendable except as
set forth in this sentence or that would cause the Rights again to become
redeemable.

     Rights holders have no rights as a stockholder of the Company, including
the right to vote and to receive dividends.

     The Rights Agreement includes antidilution provisions designed to prevent
efforts to diminish the effectiveness of the Rights.

     As of December 12, 2001, there were 70,553,718 shares of Common Stock
outstanding and 8,416,678 shares of Common Stock reserved for issuance under
the Company's stock option, employee purchase and incentive plans and certain
convertible securities. Each outstanding share of Common Stock on the Record
Date will receive one Right. Shares of Common Stock issued after the Record
Date and prior to the Distribution Date will be issued with a Right


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attached so that all shares of Common Stock outstanding prior to the
Distribution Date will have Rights attached. 10,000,000 shares of Preferred
Stock have been reserved for issuance upon exercise of the Rights.

     The Rights have certain anti-takeover effects. The Rights may cause
substantial dilution to a person that attempts to acquire the Company without a
condition to such an offer that a substantial number of the Rights be acquired
or that the Rights be redeemed or declared invalid. The Rights should not
interfere with any merger or other business combination approved by the Board
of Directors since the Rights may be redeemed by the Company as described
above.

     While the dividend of the Rights will not be taxable to stockholders or to
the Company, stockholders or the Company may, depending upon the circumstances,
recognize taxable income in the event that the Rights become exercisable as set
forth above.

     The foregoing description of the Rights Agreement is qualified in its
entirety by reference to the full text of the Rights Agreement, which is
attached hereto as Exhibit 1 and incorporated herein by reference.

Item 2.  Exhibits


1.   Rights Agreement dated as of December 13, 2001 between Laboratory
     Corporation of America Holdings and American Stock Transfer & Trust
     Company, as Rights Agent, which includes the Form of Certificate of
     Designation of Preferred Stock as Exhibit A, the Summary Description of
     the Stockholder Rights Plan as Exhibit B and the Form of Right Certificate
     as Exhibit C.









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                                            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.


                                      LABORATORY CORPORATION OF AMERICA HOLDINGS


                                      By:  /s/ Bradford T. Smith
                                          --------------------------------------
                                          Name:  Bradford T. Smith
                                          Title: Executive Vice President,
                                                 Chief Legal Officer and
                                                 Secretary


Dated: December 21, 2001


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