UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934

NOVEMBER 6, 2000
- ------------------
(Date of earliest event reported)


LABORATORY CORPORATION OF AMERICA HOLDINGS
- ------------------------------------------
(Exact name of registrant as specified in its charter)


   DELAWARE                1-11353             13-3757370
 --------------          -----------         --------------
(State or other         (Commission          (IRS Employer
jurisdiction of         File Number)         Identification
incorporation)                                   Number)


358 SOUTH MAIN STREET, BURLINGTON, NORTH CAROLINA 27215
- -------------------------------------------------------
(Address of principal executive offices)

336-229-1127
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(Registrant's telephone number, including area code)




ITEM 5. OTHER EVENTS

   Laboratory Corporation of America -Registered Trademark-
Holdings (LabCorp -Registered Trademark-)(NYSE:LH) announced
that its Houston toxicology laboratory has received
certification from the Substance Abuse and Mental Health
Services Administration (SAMHSA) for workplace drug testing.
With five major SAMHSA certified centers across the United
States, LabCorp is a leading laboratory provider of occupational
drug testing.






ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL
        INFORMATION AND EXHIBITS

 (c)  Exhibit
20 Press release of the Company dated November 6,
2000.





SIGNATURES

Pursuant to the requirements of the Securities and Exchange
Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned hereunto duly
authorized.

          LABORATORY CORPORATION OF AMERICA HOLDINGS
          ------------------------------------------
                        (Registrant)

               By:/s/ BRADFORD T. SMITH
                  ----------------------------------
                      Bradford T. Smith
                      Executive Vice President,
                      General Counsel, Secretary
                      and Compliance Officer



Date: November 7, 2000

Laboratory Corporation of Americar Holdings
358 South Main Street
Burlington, NC   27215
Telephone:  336-584-5171
FOR IMMEDIATE RELEASE

Contact:  336-436-4855   Shareholder Direct:  800-LAB-0401
          Pamela Sherry                       www.labcorp.com



 LABORATORY CORPORATION OF AMERICA'S-REGISTERED TRADEMARK-
HOUSTON TOXICOLOGY LABORATORY RECEIVES CERTIFICATION FROM
SAMHSA


Burlington, NC, November 6, 2000 - Laboratory Corporation
of America-Registered Trademark- Holdings (LabCorp-
Registered Trademark-) (NYSE:  LH) announced today
that its Houston toxicology laboratory has received
certification from the Substance Abuse and Mental Health
Services Administration (SAMHSA) for workplace drug
testing. With five major SAMHSA certified centers across
the United States, LabCorp is a leading laboratory
provider of occupational drug testing.
The certification of LabCorp's Houston facility brings
together the company's strategic goal to provide accurate,
fast and dependable occupational testing services.
Bridging the company's network of SAMHSA laboratories on
the east and west coast, LabCorp will be well positioned
to provide enhanced service levels through improved
company logistics, reinforced disaster recovery plans,
standardized computer systems, and a national service call
center.
"We are excited that our Houston facility has received
this important certification," said Randy Simmons, Senior
Vice President for LabCorp's occupational testing services
division.  "Its addition complements our growth strategies
for this division by creating a fifth, strategically
placed SAMHSA laboratory.  With Houston's certification,
we will acquire expanded capacities to service our
customers in both the public and private sectors."
LabCorp began substance abuse testing in 1982 and in 1988,
two of its laboratories were among the first ten
laboratories in the United States to be certified by the
National Institute on Drug Abuse (NIDA), now the National
Laboratory Certification Program. In addition to the
Houston location, LabCorp's SAMHSA network also includes
laboratories in Research Triangle Park, North Carolina,
one of LabCorp's Centers of Excellence, as well as San
Diego, Memphis, and Raritan, New Jersey.
Laboratory Corporation of America-Registered Trademark-
Holdings (LabCorp-Registered Trademark-) is a national
clinical laboratory with annual revenues of $1.7 billion
in 1999.  With 18,000 employees and over 100,000 clients
nationwide, the company offers more than 2,000 clinical
tests ranging from simple blood analyses to sophisticated
molecular diagnostics. LabCorp leverages its expertise in
innovative clinical testing technology with its Centers of
Excellence. The Center for Molecular Biology and
Pathology, in Research Triangle Park (RTP), North
Carolina, develops applications for polymerase chain
reaction (PCR) technology, and National Genetics Institute
in Los Angeles is an industry leader in developing novel,
highly sensitive PCR methods for testing hepatitis C and
other infectious agents. Its Center for Occupational
Testing in RTP is one of the world's largest substance
abuse testing facilities, and the Center for Esoteric
Testing in Burlington, North Carolina, performs the
largest volume of specialty testing in the network.
LabCorp's clients include physicians, state and federal
government, managed care organizations, hospitals,
clinics, pharmaceutical and Fortune 1000 companies, and
other clinical laboratories.


Each of the above forward-looking statements is subject to
change based on various important factors, including
without limitation, competitive actions in the marketplace
and adverse actions of governmental and other third-party
payors.  Further information on potential factors that
could affect LabCorp's financial results is included in
the Company's Form 10-K for the year ended December 31,
1999 and subsequent SEC filings.

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