This filing is made pursuant to Rule 424(b)(1) under the Securities
            Act of 1933 in connection with Registration No. 333-83108


                                7,000,000 Shares

                   LABORATORY CORPORATION OF AMERICA HOLDINGS

                                  Common Stock

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

     The shares of our common stock are being sold by the selling stockholder.
We will not receive any of the proceeds from the shares of our common stock sold
by the selling stockholder.

     Our common stock is listed on The New York Stock Exchange under the symbol
"LH." The last reported sale price on March 6, 2002 was $86.81 per share.

     The underwriters have an option to purchase a maximum of 700,000 additional
shares of our common stock from the selling stockholder to cover over-allotments
of shares.



                                                                      UNDERWRITING    PROCEEDS TO
                                                         PRICE TO     DISCOUNTS AND     SELLING
                                                          PUBLIC       COMMISSIONS    STOCKHOLDER
                                                       ------------   -------------   ------------
                                                                             
Per Share............................................  $      86.50    $      3.95    $      82.55
Total................................................  $605,500,000    $27,650,000    $577,850,000


     Delivery of the shares of our common stock will be made on or about March
12, 2002.

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

     CREDIT SUISSE FIRST BOSTON                                 UBS WARBURG

BANC OF AMERICA SECURITIES LLC                         DEUTSCHE BANC ALEX. BROWN

MERRILL LYNCH & CO.                                   U.S. BANCORP PIPER JAFFRAY

                  The date of this prospectus is March 6, 2002


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

                               TABLE OF CONTENTS



                                                              PAGE
                                                              ----
                                                           
PROSPECTUS SUMMARY..........................................    1
SPECIAL NOTE REGARDING FORWARD LOOKING STATEMENTS...........    7
PRICE RANGE OF COMMON STOCK AND DIVIDEND HISTORY............    8
USE OF PROCEEDS.............................................    8
SELLING STOCKHOLDER.........................................    9
UNDERWRITING................................................   10
NOTICE TO CANADIAN RESIDENTS................................   12
LEGAL MATTERS...............................................   13
EXPERTS.....................................................   13
WHERE YOU CAN FIND MORE INFORMATION.........................   14


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

     YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS DOCUMENT OR TO
WHICH WE HAVE REFERRED YOU. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH
INFORMATION THAT IS DIFFERENT. THIS DOCUMENT MAY ONLY BE USED WHERE IT IS LEGAL
TO SELL THESE SECURITIES. THE INFORMATION IN THIS DOCUMENT MAY ONLY BE ACCURATE
ON THE DATE OF THIS DOCUMENT.

                                        i


                               PROSPECTUS SUMMARY

     The following summary is qualified in its entirety by the more detailed
information included elsewhere or incorporated by reference in this prospectus.
Because this is a summary, it may not contain all the information that may be
important to you. You should read the entire prospectus, as well as the
information incorporated by reference, before making an investment decision.

                                    LABCORP

     We are the second largest independent clinical laboratory company in the
United States, based on 2001 net revenues. Through a national network of
laboratories, we offer more than 4,000 different clinical laboratory tests which
are used by the medical profession in routine testing, patient diagnosis, and in
the monitoring and treatment of disease. We have developed specialty and niche
businesses based on certain types of specialized testing capabilities and client
requirements, such as HIV genotyping and phenotyping, diagnostic genetics,
clinical research trials and oncology testing.

     Since our founding in 1971, we have grown into a network of 24 primary
laboratories and approximately 1,200 service sites, consisting of branches,
patient service centers and STAT laboratories, which are laboratories that have
the ability to perform certain routine tests quickly and report the results to
the physician immediately. With over 19,000 employees, we processed tests on
more than 281,000 patient specimens daily in 2001 and provided clinical
laboratory testing services to clients in 50 states. Our clients include
physicians, hospitals, HMOs and other managed care organizations, governmental
agencies, large employers, and other independent clinical laboratories that do
not have the breadth of our testing capabilities. Several hundred of our 4,000
tests are frequently used in general patient care by physicians to establish or
support a diagnosis, to monitor treatment, or to search for an otherwise
undiagnosed condition. The most frequently requested of these routine tests
include blood chemistry analyses, urinalyses, blood cell counts, pap smears and
HIV tests. We perform this core group of routine tests, which constitutes a
majority of the testing conducted, in each of our major laboratories using
sophisticated and computerized instruments, with most results reported within 24
hours.

     We continually seek new and improved technologies for early diagnosis. For
example, our Center for Molecular Biology and Pathology is a leader in molecular
diagnostics and polymerase chain reaction, or PCR, technologies which are often
able to provide earlier and more reliable information regarding HIV, genetic
diseases, cancer and many other viral and bacterial diseases. We believe these
technologies may represent a significant savings to managed care organizations
by increasing the detection of early stage (treatable) diseases. In June 2001,
we acquired Viro-Med Inc., a national leader in high-end virologic infectious
disease testing, based in Minneapolis, Minnesota. With its centralized location,
proprietary molecular technologies and state-of-the-art facility, Viro-Med
provides significant, additional capacity to support the continued expansion of
our esoteric and genomic testing business. In April 2001, we acquired Path Lab
Holdings, a regional esoteric lab company serving the New England area. We
believe this acquisition will leverage our expertise in the area of esoteric
testing and will enable us to expand our presence in New England. In August
2000, we acquired Los Angeles-based National Genetics Institute, Inc., a leader
in the development of PCR assays for Hepatitis C. As part of our strategic
approach, we plan to continue to evaluate appropriate acquisition candidates.

     One of our primary growth strategies is the continued expansion of our
specialty and niche businesses. In general, the specialty and niche businesses
are designed to serve two market segments: (1) markets which are not served by
the routine clinical testing laboratory and therefore are often subject to less
stringent regulatory and reimbursement constraints; and (2) markets which are
served by the routine testing laboratory and offer the possibility of adding
related services from the same supplier.

     Another of our primary growth strategies is to develop an increasing number
of hospital and other provider alliances. These alliances can take several
different forms, including laboratory technical support (management) contracts,
reference agreements and cooperative testing arrangements. We have and will

                                        1


continue to focus on developing cooperative testing relationships that
capitalize on hospitals' ability to perform rapid response testing and our
ability to provide high quality routine and esoteric testing.

     Our principal executive office is located at 358 South Main Street,
Burlington, North Carolina 27215 and our telephone number at that location is
(336) 229-1127. Our website is located at www.labcorp.com. The information
contained on our website is not part of this prospectus.

                            RELATIONSHIP WITH ROCHE

STOCKHOLDER AGREEMENT

     In 1995, we and affiliates of the selling stockholder entered into a
stockholder agreement. The stockholder agreement contains certain provisions
relating to (1) our governance, including, but not limited to, the composition
of our board of directors, (2) the issuance, sale and transfer of our equity
securities by us and by the selling stockholder, and (3) registration rights we
granted to the selling stockholder and its affiliates with respect to our equity
securities. Except as described below, all of the selling stockholder's rights
with respect to the stockholder agreement will terminate as a result of this
offering which will cause the selling stockholder's ownership interest in our
common stock to fall to approximately 5.23% (approximately 4.24% if the
underwriters' over-allotment option is exercised in full). For a description of
certain third-party contractual obligations of the selling stockholder regarding
the shares of our common stock it will own after the offering, see "Selling
Stockholder" below.

     The selling stockholder currently has the right to designate one director
for nomination to the board of directors. Following the offering, it will no
longer have the right to designate a director. Currently, the board of directors
is comprised of seven members.

     Following the offering, the selling stockholder will continue to have
demand registration rights and the benefit of various covenants given by us with
respect to transfers made by the selling stockholder under Rule 144A of the
Securities Act.

                              RECENT DEVELOPMENTS

STOCKHOLDER RIGHTS PLAN

     We adopted a stockholder rights plan effective as of December 13, 2001
pursuant to which each common stockholder of record on December 21, 2001
received a dividend of one right for each share of common stock held. Each right
entitles the holder to purchase from us one one-hundredth of a share of a new
series of participating preferred stock at an initial purchase price of $400.
These rights will become exercisable and will detach from our common stock if
any person becomes the beneficial owner of 15% or more of our common stock. In
that event, each right will entitle the holder, other than the acquiring person,
to purchase, for the initial purchase price, shares of our common stock having a
value of twice the initial purchase price. If, following an acquisition of 15%
or more of our common stock, we are involved in certain mergers or other
business combinations, or sell or transfer more than 50% of our assets or
earning power, each right will entitle the holder to purchase, for the initial
purchase price, common stock of the other party to the transaction having a
value of twice the initial purchase price.

     At any time after a person has acquired 15% or more (but before any person
has acquired more than 50%) of our common stock, we may exchange all or part of
the rights for shares of our common stock at an exchange ratio of one share of
common stock per right. We may redeem the rights at a price of $0.001 per right
at any time prior to the time that a person becomes the beneficial owner of 15%
or more of our common stock. The rights will expire on December 13, 2011, unless
earlier exchanged or redeemed.

     The shares offered hereby include preferred stock purchase rights.

                                        2


FINANCIAL RESULTS FOR 2001

     On February 13, 2002, we announced results for the year ended December 31,
2001. For the twelve-month period ended December 31, 2001, we generated net
sales of $2,199.8 million, operating income of $367.6 million, net earnings
before extraordinary loss of $182.7 million and net earnings of $179.5 million.
For the same period in 2000, we reported net sales of $1,919.3 million,
operating income of $245.6 million and net earnings of $112.1 million. The
revenue increase of 14.6 percent consists of increases of approximately 8.6
percent in volume and 6.0 percent in price. Diluted earnings per common share
before extraordinary loss were $2.59, compared to $1.61 in the 2000 period.



                                                                 YEAR ENDED DECEMBER 31,
                                                              -----------------------------
                                                                  2000             2001
                                                              ------------     ------------
                                                              (DOLLARS IN MILLIONS, EXCEPT
                                                                   PER SHARE AMOUNTS)
                                                                       (UNAUDITED)
                                                                         
STATEMENT OF OPERATIONS DATA:
  Net sales.................................................    $1,919.3         $2,199.8
  Cost of sales.............................................     1,152.7          1,274.2
  Selling, general and administrative.......................       483.0            516.5
  Amortization of intangibles and other assets..............        33.5             41.5
  Restructuring charge......................................         4.5               --
                                                                --------         --------
  Operating income..........................................       245.6            367.6
                                                                --------         --------
  Other income (expense)....................................         0.5              0.6
  Termination of interest rate swap agreement...............          --             (8.9)
  Interest expense..........................................       (38.5)           (27.0)
                                                                --------         --------
  Earnings before income taxes and extraordinary loss.......       207.6            332.3
  Provision for income taxes................................       (95.5)          (149.6)
                                                                --------         --------
  Earnings before extraordinary loss........................       112.1            182.7
  Extraordinary loss, net of tax benefit....................          --             (3.2)
                                                                --------         --------
  Earnings after extraordinary loss.........................       112.1            179.5
  Less preferred stock dividends and accretion of
     mandatorily redeemable preferred stock.................        34.6               --
                                                                --------         --------
  Net earnings attributable to common shareholders..........    $   77.5         $  179.5
                                                                ========         ========
  Diluted earnings per share before extraordinary loss......    $   1.61         $   2.59
  Extraordinary loss, net of tax benefit....................          --            (0.05)
                                                                --------         --------
  Diluted earnings per share................................    $   1.61         $   2.54
                                                                ========         ========
  Weighted-average shares outstanding -- diluted............        48.2             70.5
                                                                ========         ========


                                        3




                                                                 AS OF
                                                              DECEMBER 31,
                                                                  2001
                                                              ------------
                                                              (UNAUDITED)
                                                           
BALANCE SHEET DATA:
  Cash and cash equivalents.................................    $  149.2
  Accounts receivables, net.................................       365.5
  Property, plant & equipment...............................       309.3
  Intangible assets, net....................................       968.5
  Other assets..............................................       137.1
                                                                --------
                                                                $1,929.6
                                                                ========
  Total bank debt...........................................    $     --
  Zero coupon -- subordinated notes.........................       502.8
  Other liabilities.........................................       341.4
  Shareholders' equity......................................     1,085.4
                                                                --------
                                                                $1,929.6
                                                                ========


CREDIT FACILITIES

     On February 20, 2002, we entered into $300 million of new senior credit
facilities with Credit Suisse First Boston, acting as Administrative Agent, and
a group of financial institutions. The new facilities consist of a 364-day
revolving credit facility in the principal amount of $100 million and a
three-year revolving credit facility in the principal amount of $200 million.
The new facilities will be used for general corporate purposes, including
working capital, capital expenditures, funding of share repurchases and other
payments and acquisitions. Our previous credit agreement, under which no loans
were outstanding, was terminated upon the closing of the new facilities.

     The terms of the new facilities include financial covenants governing total
leverage and interest coverage as well as negative covenants limiting restricted
payments, subsidiary indebtedness and certain other items customary for
investment grade-rated borrowers. The facility fee and interest rate on the new
facilities are based on our senior credit rating as determined by Standard &
Poor's, which rating was recently upgraded to BBB+ from BBB.

                                        4


                                  THE OFFERING


                                         
Common Stock offered......................  7,000,000 shares (7,700,000 shares if the underwriters'
                                            over-allotment option is exercised in full)
Use of proceeds...........................  We will not receive any of the proceeds from the sale of
                                            shares of our common stock offered by the selling
                                            stockholder.
NYSE symbol...............................  LH


                                        5


                   SUMMARY CONSOLIDATED FINANCIAL INFORMATION

     The selected consolidated financial data presented below (1) for each of
the three years in the period ended December 31, 2000 are derived from our
consolidated financial statements, which have been audited by
PricewaterhouseCoopers LLP, independent accountants and (2) as of September 30,
2001 and for the nine-month periods ended September 30, 2000 and 2001 are
derived from our unaudited condensed consolidated financial statements. You
should read this table along with our annual report on Form 10-K for our fiscal
year ended December 31, 2000, and our quarterly report on Form 10-Q for the nine
months ended September 30, 2001. Our unaudited condensed consolidated financial
statements include all adjustments, consisting of normal recurring adjustments,
necessary for a fair presentation of our financial condition and results of
operations for the relevant periods and, in the opinion of management, have been
prepared on the same basis as our audited consolidated financial statements.
Results of operations for the nine months ended September 30, 2001 are not
necessarily indicative of results of operations for the full year.



                                                                                  NINE MONTHS
                                                YEAR ENDED DECEMBER 31,       ENDED SEPTEMBER 30,
                                             ------------------------------   -------------------
                                               1998       1999       2000       2000       2001
                                             --------   --------   --------   --------   --------
                                               (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
                                                                                  (UNAUDITED)
                                                                          
STATEMENT OF OPERATIONS DATA:
  Net sales................................  $1,612.6   $1,698.7   $1,919.3   $1,433.3   $1,636.0
  Gross profit.............................     563.4      629.1      766.6      581.5      700.5
  Operating income.........................     127.6      149.7      245.6(a)    198.0     290.2
  Net earnings.............................      68.8       65.4      112.1       91.2      138.7(b)
  Net earnings attributable to common
     shareholders..........................      24.4       15.0       77.5       56.6      138.7
  Basic earnings per common share(c).......  $   0.98   $   0.59   $   1.65   $   1.43   $   2.00
  Diluted earnings per common share(c).....  $   0.98   $   0.58   $   1.61   $   1.33   $   1.97
OTHER FINANCIAL DATA:
  Cash flows provided by operating
     activities............................  $  125.1   $  180.5   $  246.7   $  177.6   $  252.4
  Cash flows used for investing
     activities............................     (68.6)     (77.0)    (150.0)    (127.4)    (193.3)
  Cash flows used for financing
     activities............................     (57.1)     (85.8)     (87.9)     (74.7)     (51.8)




                                                                  AS OF
                                                              SEPTEMBER 30,
                                                                  2001
                                                              -------------
                                                               (UNAUDITED)
                                                           
CONSOLIDATED BALANCE SHEET DATA:
  Cash and cash equivalents.................................    $   55.5
  Total assets..............................................     1,820.3
  Total debt................................................       437.1
  Total shareholders' equity................................     1,036.5


---------------
(a) In the fourth quarter of 2000, we recorded a $4.5 million restructuring
    charge relating to the closing of our Memphis drug testing facility.

(b) In the third quarter of 2001, we recorded an extraordinary loss of $3.2
    million (net of tax benefit) relating to the write-off of unamortized bank
    fees associated with our term debt, which was repaid in September 2001. In
    the same quarter, we recorded a one-time charge of $8.9 million relating to
    a payment made to terminate an interest rate swap agreement tied to our term
    loan.

(c) In May 2000, our stockholders approved a 1-for-10 reverse stock split. In
    May 2001, our stockholders approved a 2-for-1 stock split which was paid in
    the form of a stock dividend on June 11, 2001. As a result, basic and
    diluted earnings per common share have been restated to reflect the reverse
    stock split and the 2-for-1 stock split.

                                        6


               SPECIAL NOTE REGARDING FORWARD LOOKING STATEMENTS

     We have made or incorporated by reference in this prospectus forward
looking statements concerning our operations, performance and financial
condition, as well as our strategic objectives. Some of these forward looking
statements can be identified by the use of forward looking words such as
"believe", "expect", "may", "will", "should", "seek", "approximately", "intend",
"plan", "estimate" or "anticipate" or the negative of those words or other
comparable terminology. These forward looking statements are subject to various
risks and uncertainties. Actual events or results may differ materially from
those currently anticipated due to a number of factors in addition to those
discussed elsewhere or incorporated by reference in this prospectus, including:

     - future changes in federal, state, local and third-party payor regulations
       or policies (or in the interpretation of current regulations) affecting
       governmental and third-party reimbursement for clinical laboratory
       testing;

     - adverse results from investigations of clinical laboratories by the
       government, which may include significant monetary damages and/or
       exclusion from the Medicare and Medicaid programs;

     - loss or suspension of a license or imposition of a fine or penalties
       under, or future changes in, the law or regulations of the Clinical
       Laboratory Improvement Act of 1967, and the Clinical Laboratory
       Improvement Amendments of 1988, or those of Medicare, Medicaid or other
       federal, state or local agencies;

     - failure to comply with the Federal Occupational Safety and Health
       Administration requirements and the Needlestick Safety and Prevention Act
       which may result in penalties and loss of licensure;

     - increased competition, including price competition;

     - changes in payor mix, including an increase in capitated managed-cost
       health care;

     - our failure to obtain and retain new customers and alliance partners, or
       a reduction in tests ordered or specimens submitted by existing
       customers;

     - our failure to integrate newly acquired businesses and the cost related
       to this integration;

     - adverse results in litigation matters;

     - our ability to attract and retain experienced and qualified personnel;
       and

     - failure to maintain our days sales outstanding levels.

     We are under no duty to update any of the forward-looking statements after
the date of this prospectus to conform them to actual results.

                                        7


                PRICE RANGE OF COMMON STOCK AND DIVIDEND HISTORY

     Our common stock trades on The New York Stock Exchange under the symbol
"LH."

     The following table sets forth for the calendar periods indicated the high
and low intraday sales prices for our common stock reported on the NYSE
Composite Tape:



                                                               HIGH      LOW
                                                              ------    ------
                                                                  
2000
1st Quarter.................................................  $23.44    $15.63
2nd Quarter.................................................   40.50     19.69
3rd Quarter.................................................   66.25     38.13
4th Quarter.................................................   91.50     54.13
2001
1st Quarter.................................................  $87.50    $49.75
2nd Quarter.................................................   82.50     56.45
3rd Quarter.................................................   91.35     66.84
4th Quarter.................................................   90.00     73.00
2002
1st Quarter (through March 6, 2002).........................  $88.80    $76.30


     The last reported sale price on The New York Stock Exchange for our common
stock was $86.81 per share on March 6, 2002.

     In May 2000, our stockholders approved a 1-for-10 reverse stock split. In
May 2001, our stockholders approved a 2-for-1 stock split which was paid in the
form of a stock dividend on June 11, 2001. The above reported sales prices
reflect such reverse stock split and 2-for-1 stock split.

     In order to increase our flexibility with respect to our acquisition
strategy, it is currently our policy not to pay dividends on our common stock.
In addition, our revolving credit facilities place certain limits on the payment
of dividends.

                                USE OF PROCEEDS

     We will not receive any of the proceeds from the sale of the shares of our
common stock offered by the selling stockholder.

                                        8


                              SELLING STOCKHOLDER

     The selling stockholder intends to dispose of the shares of our common
stock as described under the caption "Underwriting" below. As of March 4, 2002,
Roche Holdings, Inc. owned 10,705,074 shares of our common stock (approximately
15.11% of our common stock outstanding). Following the offering, its ownership
of our common stock will be approximately 5.23% (approximately 4.24% if the
over-allotment option is exercised in full).

     The following table sets forth certain information regarding the beneficial
ownership of our common stock by the selling stockholder, and as adjusted to
give effect to the sale of the shares of our common stock covered by this
prospectus.



                                                                          SHARES BENEFICIALLY
                                                                                 OWNED
                                          SHARES                           AFTER OFFERING(1)
                                       BENEFICIALLY                       -------------------
                                      OWNED PRIOR TO   NUMBER OF SHARES   NUMBER OF
NAME OF SELLING STOCKHOLDER              OFFERING      BEING OFFERED(1)   SHARES(2)   PERCENT
---------------------------           --------------   ----------------   ---------   -------
                                                                          
Roche Holdings, Inc.................    10,705,074        7,000,000       3,705,074    5.23%
  One Commerce Center
  Suite 1050
  Wilmington, Delaware 19801


---------------
(1) Does not include the over-allotment shares. If the underwriters exercise
    their over-allotment option in full, the selling stockholder will
    beneficially own 3,005,074 shares of our common stock or approximately 4.24%
    after the offering.

(2) Of these remaining shares owned by the selling stockholder, 3,005,074 shares
    are subject to certain third-party call options granted between November
    2001 and January 2002. These call options permit an option holder to
    purchase our shares from the selling stockholder immediately prior to the
    expiration of these call options on specified dates between June 21, 2002
    and November 15, 2002. If these call options are exercised in full and the
    underwriters' over-allotment option is also exercised in full, then the
    selling stockholder will no longer own any shares of our common stock as of
    November 15, 2002.

                                        9


                                  UNDERWRITING

     Under the terms and subject to the conditions contained in an underwriting
agreement dated March 6, 2002, the selling stockholder has agreed to sell to the
underwriters named below, for whom Credit Suisse First Boston Corporation, UBS
Warburg LLC, Banc of America Securities LLC, Deutsche Banc Alex. Brown Inc.,
Merrill Lynch, Pierce, Fenner & Smith Incorporated and U.S. Bancorp Piper
Jaffray Inc. are acting as representatives, the following respective numbers of
shares of our common stock:



                                                               NUMBER
UNDERWRITER                                                   OF SHARES
-----------                                                   ---------
                                                           
Credit Suisse First Boston Corporation......................  2,800,000
UBS Warburg LLC.............................................  2,100,000
Banc of America Securities LLC..............................    525,000
Deutsche Banc Alex. Brown Inc...............................    525,000
Merrill Lynch, Pierce, Fenner & Smith
            Incorporated....................................    525,000
U.S. Bancorp Piper Jaffray Inc..............................    525,000
                                                              ---------
Total.......................................................  7,000,000
                                                              =========


     The underwriting agreement provides that the underwriters are obligated to
purchase all the shares of common stock in the offering if any are purchased,
other than those shares covered by the over-allotment option described below.
The underwriting agreement also provides that if an underwriter defaults, the
purchase commitments of non-defaulting underwriters may be increased or the
offering may be terminated.

     The selling stockholder has granted to the underwriters a 30-day option to
purchase on a pro rata basis up to 700,000 additional shares at the initial
public offering price less the underwriting discounts and commissions. The
option may be exercised only to cover any over-allotments of common stock.

     The underwriters propose to offer the shares of our common stock initially
at the public offering price on the cover page of this prospectus and to selling
group members at that price, less a selling concession of $2.37 per share. The
underwriters and selling group members may allow a discount of $0.10 per share
on sales to other broker/dealers. After the initial public offering, the
representatives may change the public offering price and concession and discount
to broker/dealers.

     The following table summarizes the compensation and estimated expenses we
and the selling stockholder will pay:



                                                 PER SHARE                             TOTAL
                                      --------------------------------    --------------------------------
                                         WITHOUT             WITH            WITHOUT             WITH
                                      OVER-ALLOTMENT    OVER-ALLOTMENT    OVER-ALLOTMENT    OVER-ALLOTMENT
                                      --------------    --------------    --------------    --------------
                                                                                
Expenses payable by us..............      $0.09             $0.08          $   650,000       $   650,000
Underwriting discounts and
  commissions paid by selling
  stockholder.......................      $3.95             $3.95          $27,650,000       $30,415,000


     The underwriters have agreed to reimburse us for certain expenses related
to the offering.

     We have agreed that we will not offer, sell, contract to sell, pledge or
otherwise dispose of, directly or indirectly, or file with the Securities and
Exchange Commission a registration statement under the Securities Act relating
to, any shares of our common stock or securities convertible into or
exchangeable or exercisable for any shares of our common stock, or publicly
disclose the intention to make any offer, sale, pledge, disposition or filing,
without the prior written consent of Credit Suisse First Boston Corporation for
a period of 45 days after the date of this prospectus. This agreement does not
apply to (1) grants of employee stock options under the terms of our employee
stock option plans in effect on the date hereof, (2) issuances of securities
through the exercise of any employee stock options outstanding on the date
hereof, (3) issuances of securities under our dividend reinvestment plan or (4)
issuances of shares of our common stock upon any conversion of our outstanding
convertible notes due 2021.

     The selling stockholder has agreed that it will not offer, sell, contract
to sell, pledge or otherwise dispose of, directly or indirectly, any shares of
our common stock or securities convertible into or exchangeable or

                                        10


exercisable for any shares of our common stock, enter into a transaction that
would have the same effect, or enter into any swap, hedge or other arrangement
that transfers, in whole or in part, any of the economic consequences of
ownership of our common stock, whether any of these transactions are to be
settled by delivery of our common stock or other securities, in cash or
otherwise, or publicly disclose the intention to make any offer, sale, pledge or
disposition, or to enter into any transaction, swap, hedge or other arrangement,
without, in each case, the prior written consent of Credit Suisse First Boston
Corporation for a period of 90 days after the date of this prospectus. However,
the foregoing will not apply to the 700,000 shares of our common stock owned by
the selling stockholder that are covered by the underwriters' over-allotment
option, if this option is not exercised.

     We and the selling stockholder have agreed to indemnify the underwriters
against liabilities under the Securities Act, or to contribute to payments that
the underwriters may be required to make in that respect.

     In connection with the offering, the underwriters may engage in stabilizing
transactions, over-allotment transactions, syndicate covering transactions and
penalty bids in accordance with Regulation M under the Exchange Act.

     - Stabilizing transactions permit bids to purchase the underlying security
       so long as the stabilizing bids do not exceed a specified maximum.

     - Over-allotment involves sales by the underwriters of shares in excess of
       the number of shares the underwriters are obligated to purchase, which
       creates a syndicate short position. The short position may be either a
       covered short position or a naked short position. In a covered short
       position, the number of shares over-allotted by the underwriters is not
       greater than the number of shares that they may purchase in the
       over-allotment option. In a naked short position, the number of shares
       involved is greater than the number of shares in the over-allotment
       option. The underwriters may close out any short position by either
       exercising their over-allotment option and/or purchasing shares in the
       open market.

     - Syndicate covering transactions involve purchases of shares of our common
       stock in the open market after the distribution has been completed in
       order to cover syndicate short positions. In determining the source of
       shares to close out the short position, the underwriters will consider,
       among other things, the price of shares available for purchase in the
       open market as compared to the price at which they may purchase shares
       through the over-allotment option. If the underwriters sell more shares
       than could be covered by the over-allotment option, a naked short
       position, the position can only be closed out by buying shares in the
       open market. A naked short position is more likely to be created if the
       underwriters are concerned that there could be downward pressure on the
       price of the shares in the open market after pricing that could adversely
       affect investors who purchase in the offering.

     - Penalty bids permit the representatives to reclaim a selling concession
       from a syndicate member when the common stock originally sold by the
       syndicate member is purchased in a stabilizing or syndicate covering
       transaction to cover syndicate short positions.

These stabilizing transactions, syndicate covering transactions and penalty bids
may have the effect of raising or maintaining the market price of our common
stock or preventing or retarding a decline in the market price of our common
stock. As a result the price of our common stock may be higher than the price
that might otherwise exist in the open market. These transactions may be
effected on The New York Stock Exchange or otherwise and, if commenced, may be
discontinued at any time.

     A prospectus in electronic format may be made available on the websites
maintained by one or more of the underwriters, or selling group members, if any,
participating in this offering. The representatives may agree to allocate a
number of shares to underwriters and selling group members for sale to their
online brokerage account holders. Internet distributions will be allocated by
the underwriters and selling group members that will make internet distributions
on the same basis as other allocations.

                                        11


                          NOTICE TO CANADIAN RESIDENTS

RESALE RESTRICTIONS

     The distribution of the common stock in Canada is being made only on a
private placement basis exempt from the requirement that we and the selling
stockholder prepare and file a prospectus with the securities regulatory
authorities in each province where trades of common stock are made. Any resale
of shares of our common stock in Canada must be made under applicable securities
laws which will vary depending on the relevant jurisdiction, and which may
require resales to be made under available statutory exemptions or under a
discretionary exemption granted by the applicable Canadian securities regulatory
authority. Purchasers are advised to seek legal advice prior to any resale of
the common stock.

REPRESENTATIONS OF PURCHASERS

     By purchasing common stock in Canada and accepting a purchase confirmation
a purchaser is representing to us, the selling stockholder and the dealer from
whom the purchase confirmation is received that:

     - the purchaser is entitled under applicable provincial securities laws to
       purchase the common stock without the benefit of a prospectus qualified
       under those securities laws;

     - where required by law, that the purchaser is purchasing as principal and
       not as agent; and

     - the purchaser has reviewed the text above under the caption "Resale
       Restrictions."

RIGHTS OF ACTION -- ONTARIO PURCHASERS ONLY

     Under Ontario securities legislation, a purchaser who purchases a security
offered by this prospectus during the period of distribution will have a
statutory right of action for damages, or while still the owner of the shares,
for rescission against us and the selling stockholder in the event that this
prospectus contains a misrepresentation. A purchaser will be deemed to have
relied on the misrepresentation. The right of action for damages is exercisable
not later than the earlier of 180 days from the date the purchaser first had
knowledge of the facts giving rise to the cause of action and three years from
the date on which payment is made for the shares. The right of action for
rescission is exercisable not later than 180 days from the date on which payment
is made for the shares. If a purchaser elects to exercise the right of action
for rescission, the purchaser will have no right of action for damages against
us or the selling stockholder. In no case will the amount recoverable in any
action exceed the price at which the shares were offered to the purchaser and if
the purchaser is shown to have purchased the securities with knowledge of the
misrepresentation, we and the selling stockholder will have no liability. In the
case of an action for damages, we and the selling stockholder will not be liable
for all or any portion of the damages that are proven to not represent the
depreciation in value of the shares as a result of the misrepresentation relied
upon. These rights are in addition to, and without derogation from, any other
rights or remedies available at law to an Ontario purchaser. The foregoing is a
summary of the rights available to an Ontario purchaser. Ontario purchasers
should refer to the complete text of the relevant statutory provisions.

ENFORCEMENT OF LEGAL RIGHTS

     All of our directors and officers as well as the experts named herein and
the selling stockholder may be located outside of Canada and, as a result, it
may not be possible for Canadian purchasers to effect service of process within
Canada upon us or those persons. All or a substantial portion of our assets and
the assets of those persons may be located outside of Canada and, as a result,
it may not be possible to satisfy a judgment against us or those persons in
Canada or to enforce a judgment obtained in Canadian courts against us or those
persons outside of Canada.

TAXATION AND ELIGIBILITY FOR INVESTMENT

     Canadian purchasers of shares of common stock should consult their own
legal and tax advisors with respect to the tax consequences of an investment in
the common stock in their particular circumstances and about the eligibility of
the common stock for investment by the purchaser under relevant Canadian
legislation.

                                        12


                                 LEGAL MATTERS

     Certain legal matters with respect to the validity of the shares of our
common stock offered hereby will be passed upon for us by Bradford T. Smith,
Executive Vice President, Chief Legal Counsel and Secretary. Mr. Smith is our
full-time employee and officer, and beneficially owns 164,710 shares of our
common stock. Certain other legal matters will be passed upon for us and the
selling stockholder by Davis Polk & Wardwell. The underwriters have been
represented by Skadden, Arps, Slate, Meagher & Flom LLP, New York, New York.

                                    EXPERTS

     The consolidated financial statements and financial statement schedule
incorporated in this prospectus by reference to the Annual Report on Form 10-K
of Laboratory Corporation of America Holdings as of December 31, 2000, have been
so incorporated in reliance on the report of PricewaterhouseCoopers LLP,
independent accountants, given on the authority of said firm as experts in
auditing and accounting.

                                        13


                      WHERE YOU CAN FIND MORE INFORMATION

     We file annual, quarterly and special reports, proxy statements and other
information with the SEC under the Exchange Act. You may read and copy this
information at the following locations of the SEC:


                                                          
Public Reference Room           Northeast Regional Office       Midwest Regional Office
450 Fifth Street, N.W.          233 Broadway                    500 West Madison Street
Room 1024                       New York, NY 10279              Suite 1400
Washington, D.C. 20549                                          Chicago, IL 60661


     You may obtain information on the operation of the Public Reference Room
and the above regional offices by calling the SEC at 1-800-SEC-0330. You may
also obtain copies of the information by mail from the Public Reference Section
of the SEC, 450 Fifth Street, N.W., Room 1024, Washington, DC 20549, at
prescribed rates. The SEC also maintains a website that contains reports, proxy
statements and other information about issuers, like LabCorp, who file
electronically with the SEC. The address of the site is www.sec.gov.

     You can also inspect reports, proxy statements and other information about
us at the offices of The New York Stock Exchange, 20 Broad Street, New York, New
York 10005.

     We have filed with the SEC a registration statement under the Securities
Act to register the shares of our common stock offered by this prospectus. This
prospectus is only part of the registration statement and does not contain all
of the information in the registration statement and its exhibits because
certain parts are allowed to be omitted by SEC rules. Statements in this
prospectus about documents filed as an exhibit to the registration statement or
otherwise filed with the SEC are only summary statements and may not contain all
the information that may be important to you. For further information about us,
and the shares of our common stock offered by this prospectus, you should read
the registration statement, including its exhibits and the documents
incorporated into it by reference.

     The SEC allows us to incorporate by reference the information we file with
them, which means that we can disclose important information to you by referring
you to those documents. The information incorporated by reference is an
important part of this prospectus. Information that we file later with the SEC
will automatically update and supersede this information. We incorporated by
reference the documents listed below and any future filings made with the SEC
under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, until all of the
shares of our common stock offered under this prospectus are sold.



LABCORP SEC FILINGS (FILE NO. 1-11353)                               PERIOD
--------------------------------------                               ------
                                         
Annual Report on Form 10-K................  Fiscal year ended December 31, 2000
Quarterly Report on Form 10-Q.............  Quarter ended March 31, 2001
Quarterly Report on Form 10-Q.............  Quarter ended June 30, 2001
Quarterly Report on Form 10-Q.............  Quarter ended September 30, 2001
Current Report on Form 8-K................  Filed February 14, 2001 containing the press release
                                            regarding results for the quarter and year ended
                                            December 31, 2000
Current Report on Form 8-K................  Filed March 26, 2001
Current Report on Form 8-K................  Filed April 23, 2001 containing the press release
                                            regarding results for the quarter ended March 31, 2001
Current Report on Form 8-K................  Filed May 1, 2001
Current Report on Form 8-K................  Filed May 11, 2001
Current Report on Form 8-K................  Filed June 4, 2001
Current Report on Form 8-K................  Filed June 12, 2001 containing the amended and restated
                                            certificate of incorporation
Current Report on Form 8-K................  Filed July 11, 2001
Current Report on Form 8-K................  Filed July 23, 2001 containing the press release
                                            regarding results for the quarter ended June 30, 2001
Current Reports on Form 8-K...............  Filed September 5, 2001


                                        14




LABCORP SEC FILINGS (FILE NO. 1-11353)                               PERIOD
--------------------------------------                               ------
                                         
Current Reports on Form 8-K...............  Filed September 6, 2001 and each containing the press
                                            release regarding the private placement of the LYONs
Current Report on Form 8-K................  Filed September 19, 2001
Current Report on Form 8-K................  Filed September 21, 2001
Current Report on Form 8-K................  Filed October 22, 2001 containing the press release
                                            regarding results for the quarter ended September 30,
                                            2001
Current Report on Form 8-K................  Filed December 4, 2001
Current Report on Form 8-K................  Filed December 6, 2001
Current Report on Form 8-K................  Filed December 13, 2001
Current Report on Form 8-K................  Filed January 16, 2002
Current Report on Form 8-K................  Filed February 13, 2002 containing the press release
                                            regarding results for the quarter and year ended
                                            December 31, 2001
Current Report on Form 8-K................  Filed February 22, 2002
Current Report on Form 8-K................  Filed February 26, 2002
Registration Statement on Form 8-B, as
  amended on April 27, 1995...............  Filed July 1, 1994
The information required by Part III,
  Items 10 through 13, of Form 10-K is
  incorporated by reference to our
  definitive proxy statement for our 2000
  annual meeting of stockholders..........  Filed April 25, 2001
Registration Statement on Form 8-A........  Filed December 21, 2001


     You should rely only on the information incorporated by reference or
provided in this prospectus. We have not authorized anyone else to provide you
with different information. We are not making an offer of shares of our common
stock in any state where the offer is not permitted. You should not assume that
the information in this prospectus is accurate as of any date other than the
date on the front of this prospectus.

     You may request a copy of these filings at no cost by writing or calling us
at the following address or telephone number:
                   Laboratory Corporation of America Holdings
                             358 South Main Street
                        Burlington, North Carolina 27215
                                 (336) 229-1127
                          Attention: Bradford T. Smith

     Exhibits to the filings will not be sent, however, unless those exhibits
have been specifically incorporated by reference in this document.

                                        15